TW201512619A - Refrigerator - Google Patents

Abstract

A refrigerator is provided. An embodiment of a refrigerator includes a refrigerator body, heat insulation doors, door openers, a control operation unit, door operation units and a control unit. A front surface of the refrigerator body is an opening. The heat insulation doors are installed at the opening on the front surface of the refrigerator body. The door openers are installed in the refrigerator body and configured to forcibly open the doors. The control operation unit is installed on the door and configured to change cooling control content operations of the refrigerator. The door operation units are installed on the doors and configured to operate the door opening action of the doors. The control unit inputs operating signals from the control operation unit and the door operation units and processes corresponding cooling control and corresponding door control. A portion to give a door opening operation input to the door operation units is a portion of front surface plates of the doors, and the portion is integrally connected to the front surface plates. Operating methods for operating the control operation unit and for operating the door operation units are different.

Description

refrigerator

An embodiment of the present invention relates to a refrigerator having a touch open sensor on a front surface panel of a front surface of a door.

In recent years, there has been a refrigerator having a front surface plate of a decorative panel made of glass or plastic on a door. In such a refrigerator, the operation input unit is a capacitive touch type touch button and is disposed on the front surface plate. When the user touches a portion of the front surface of the front surface plate corresponding to the operation button, the electrostatic capacitance is used. The change is to sense the operation input and transmit the corresponding operation signal to the refrigerator control unit. In such a refrigerator, it is also desirable to provide a door opening device that senses a user's touch operation on a specific portion of the front surface plate to automatically open the door.

However, in the case where the door is automatically opened when a certain portion of the front surface plate is touched, there is a possibility that a malfunction may occur, that is, even if the user does not open the door intentionally, the corresponding portion is inadvertently touched instantaneously, or a part of the user's body unconsciously The door will also open when the corresponding part is touched.

In order to avoid such malfunction, a technique of operating the door opening device by the touch detecting means is considered, but malfunction can not be avoided.

Prior art literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-257627 (JP 2009-257627 A)

Patent Document 2: Japanese Patent No. 4347234 (JP 4347234 B)

Patent Document 3: Japanese Patent Laid-Open Publication No. 2012-17865 (JP 2012-017865 A)

Patent Document 4: Japanese Patent Laid-Open Publication No. 2012-17866 (JP 2012-017866 A)

The present invention has been made in view of the problems of the prior art described above, and an object thereof is to provide a refrigerator which is not in the case where the user does not open the door intentionally to touch the corresponding portion for a long time or if the object touches the corresponding portion for a long time. Will be wrong to open the door.

The refrigerator according to the embodiment includes a refrigerator body having a front surface open, a heat insulating door attached to the front surface opening of the refrigerator body, and a door opening device attached to the refrigerator body to forcibly perform a door opening operation.

A refrigerator according to another embodiment includes: a refrigerator body having a front surface open; a heat insulating door attached to an opening of a front surface of the refrigerator body; and a door opening device installed In the refrigerator body, the door is forcibly opened to open the door; the control operation portion is disposed on the door for performing an operation of changing the cooling control content of the refrigerator; and the door opening operation portion is disposed on the door for operating the door opening device to open the door And an operation unit that inputs an operation signal from the control operation unit and the door opening operation unit to perform corresponding cooling control and door opening control. The portion that gives the door opening operation input to the door opening operation portion is a portion of the front surface plate of the door and is integrally connected to the front surface plate. Different operation methods are employed for the operation of the control operation portion and the operation for the door opening operation portion.

1‧‧‧ refrigerator

11‧‧‧Box (fridge body)

11A‧‧‧The top part of the cabinet

11B‧‧‧The back part of the top board

11C‧‧‧ concave part

12‧‧‧Refrigerator

13‧‧ ‧ vegetable room

14‧‧‧Switching room

15‧‧‧Freezer

16‧‧‧ ice making room

21‧‧‧Left door

21A, 22A‧‧‧ front surface plate

121‧‧‧ glass plate

21K, 22K‧‧‧ inner board

21M, 22M, A1, A4~A6, A7~A13, QR‧‧‧ arrows

21T‧‧‧The inner end face of the left door

22B, 730‧‧‧Insulation

22T‧‧‧The inner end face of the right door

22‧‧‧right door

23, 24, 25, 26 ‧ ‧ pull-out doors

25G‧‧‧ sloped surface

25S‧‧‧ side section

31‧‧‧Rotating separator

50, 650‧‧‧Control Operations Department

50R, 51R, 52R, 81‧‧‧ Storage Department

50V, 51V, 52V‧‧‧ insertion port

51, 52, 71, 77, 102, 103, 104, 551, 552, 651, 652‧‧‧ Open Door Operation Department

51-1~51-5‧‧‧Secondary capacitive touch sensor

51A, 51B, 52A, 52B, 51A-1, 51A-2, 52A-1, 52A-2, 52A-31 ~52A-35‧‧‧Open door operation display

51M, 52M, 577, 635, 665, 735‧‧‧ LED

52-1~52-8‧‧‧Sliding detection touch sensor

52P, 74, 82, 99, 99A, 99B, 110, 553, 664‧‧‧ substrates

54, 55‧‧‧Open door drive department

54A, 54B, 55A, 55B‧‧‧ plunger

56, 556, 656, 756 ‧ ‧ Control Department

40, 61, 62, 201, 202, 240‧‧‧ handles

64‧‧‧Operation room setting space

70‧‧‧ Strengthening board

72‧‧‧door cover

73, 78, 740, 770 ‧ ‧ vacuum insulation

79R‧‧‧ spout

83‧‧‧Battery

84, 103‧‧‧Flexible parts

95‧‧‧Press button

99T‧‧‧ meat dish

100‧‧‧Remote detection sensor

101‧‧‧Electrostatic type switch

103b‧‧‧

104‧‧‧Switching parts

105‧‧‧Storage components

106‧‧‧Communication components

120,161‧‧‧ Pressing members

121f‧‧‧The other end of the glass plate (right end)

121M‧‧‧ inner surface of glass plate

125‧‧‧door inner structure

127‧‧‧ Washer

130‧‧‧Distance sensor

131‧‧‧Send Department

132‧‧‧ Receiving Department

133‧‧‧Lower side door cover

134‧‧‧Upper door end cover

135‧‧‧left door end cover

135M‧‧‧The inner surface of the left door end cover

137‧‧‧Right door end cover

137a‧‧‧Inclusions

150‧‧‧End cover

151‧‧‧ Protrusion

152‧‧‧Side side of the glass plate

153‧‧‧Side side of the left door end cover

154‧‧‧Substrate insertion part, hole part

155‧‧‧One end of the glass plate (left end)

156‧‧‧R face

160‧‧‧ Launched parts

162, 163, 164, 165‧ ‧ reinforced ribs

169‧‧‧ Strengthening board

170‧‧‧ inner board

199‧‧‧Sensitivity adjustment unit

200‧‧‧ wall

210, 220, 230‧‧‧Sliding doors

300‧‧‧Memory Department

305‧‧‧ Relevance input registration component

330‧‧‧Lighting Department

340‧‧‧Sound Generation Department

350‧‧‧Voice Generation Department

400, 607, 608, 711, 712, 713, 714‧‧‧ proximity sensors

410‧‧‧ Height measuring sensor

500‧‧‧Human detection parts

500M‧‧‧Substrate assembly

553A‧‧‧ surface of the substrate

553B‧‧‧ back of the substrate

553M‧‧‧1st order

553N‧‧‧Second Order

556M, 599C, MC‧‧‧Microcomputer

556R‧‧‧Multiplexer

560‧‧‧ proximity sensor (proximity switch)

560A, 560B‧‧‧ link section

560C‧‧‧through hole

560D‧‧‧Insulator layer

560H‧‧‧ wire pattern

560P‧‧‧Electromagnetic field

560R‧‧‧ coating

569‧‧‧ copper gland

570‧‧‧Protective electrode

570A‧‧‧Short-side electrode section

570B‧‧‧ long side electrode section

571‧‧‧Electronic parts

571b‧‧‧Electrical connection

572‧‧‧Configuration section

572a‧‧‧Area

572ab‧‧ ‧Bridge

572b‧‧‧around

573‧‧‧ Grounding pattern

574, 575‧‧ ‧ slit

576‧‧‧Transparent film body

576R‧‧‧ corner

585‧‧‧Storage space components

585R‧‧‧The back of the storage space component

586‧‧‧ openings

589‧‧‧Intermediate section

590‧‧ ‧covering components

591‧‧‧Metal body

597, 661‧‧‧ operation signs

598‧‧‧LED substrate

599, 666‧‧ ‧ shielding board

621, 721‧‧‧Sheet

628, 728‧‧‧Trunk harness

629, 636, 667, 729, 736‧‧‧ connectors

631, 731‧‧‧1st substrate

632, 732‧‧‧ second substrate

633‧‧‧Touch button (electrode)

634, 700H, 734‧‧ holes

650CS‧‧‧ control button

650HS‧‧‧Back button

662‧‧‧Diffuser film

663‧‧‧Transparent electrode

668‧‧‧Flexible printed circuit board

700, 762‧‧‧ box

701‧‧‧Operation Detection Department

710‧‧‧Control substrate

720‧‧‧Voice recognition component

733‧‧‧ recess

750‧‧‧ top board lighting

750a‧‧‧LED lights

755‧‧‧The inner wall of the roof

757, 780‧‧‧ bends

761‧‧‧ rod

711, 763, P2‧‧‧ Support Department

771‧‧‧Part 1

772‧‧‧Part 2

776‧‧‧ inner wall section

777‧‧‧Distance measuring unit

888‧‧‧Contact Detection Circuit

889‧‧‧Adjust capacitor

890‧‧‧ clock source

891‧‧‧IDAC

892‧‧‧Latch

893‧‧‧Timer

894‧‧‧AND circuit

895‧‧‧ counter

5211~5244‧‧‧ electrodes for sliding detection

A, U, V‧‧‧ range

A2‧‧‧ sliding operation direction

A3‧‧‧ directions

B, C, DH, Y‧‧ ‧ gap

CC1, CC2‧‧‧ connector parts

CF, CP, CX‧‧‧ electrostatic capacitors

CS1, CS2, CS3‧‧‧ storage box

DD1‧‧‧1st direction

DD2‧‧‧2nd direction

DD3‧‧‧3rd direction

DD4‧‧‧4th direction

DD5‧‧‧5th direction

DD6‧‧‧6th direction

DD7‧‧‧7th direction

DD8‧‧‧8th direction

DD9‧‧‧9th direction

DF‧‧‧Poor

DL1, DL2‧‧‧ proximity detection range

F1‧‧‧1st specific direction

F2‧‧‧2nd specific direction

HC1‧‧‧Small circle

HC2‧‧‧Great Circle

HC3‧‧‧ small shape

HF‧‧‧ lateral electrode gap spacing

HS‧‧‧ human sensor

HT‧‧ fingers

LA, LB‧‧‧ electrical wiring

LL‧‧‧ position

LLS, LLT‧‧‧Light for lighting

LS‧‧‧illuminance sensor

MF‧‧‧ finger width

NS1, NS2‧‧‧ speech recognition sensor

P1‧‧‧ position

RF‧‧‧ longitudinal electrode gap spacing

S0~S7, S11~S18, S21~S23‧‧‧ steps

SA, SB‧‧ switch

SG‧‧ signal

SH‧‧‧Contact signal

Wa, Wb‧‧‧ distance

X‧‧‧ gap

Fig. 1 is a front elevational view of the refrigerator in the first embodiment.

Fig. 2 is a perspective view showing a state in which the refrigerator of the first embodiment is opened.

Fig. 3 is an enlarged perspective view showing a refrigerator compartment portion of the refrigerator in the first embodiment.

Fig. 4 is a block diagram showing a door opening control in the refrigerator of the first embodiment.

Fig. 5 is a flow chart showing the door opening control in the refrigerator of the first embodiment.

Fig. 6 is an explanatory diagram of an attachment operation of a door opening operation unit in the refrigerator in the first embodiment.

FIG. 7 is a cross-sectional view showing a mounted state of a door opening operation portion in the refrigerator according to the first embodiment.

8 is a front elevational view showing a door opening operation portion and a door opening operation display portion in the refrigerator in the seventh embodiment.

Fig. 9 is a view showing a door opening operation portion and a door opening operation in the refrigerator in the eighth embodiment; Front view of the display.

(a) to (e) of FIG. 10 are explanatory views showing an installation example of a door opening operation unit in the refrigerator in the ninth embodiment.

FIG. 11 is an explanatory view showing an arrangement example of touch detection electrodes of the door opening operation unit in the refrigerator in the tenth embodiment.

FIG. 12 is an explanatory view showing an arrangement example of touch detection electrodes of the door opening operation unit in the refrigerator in the eleventh embodiment.

FIG. 13 is an explanatory view showing another example of the arrangement of the touch detection electrodes of the door opening operation unit in the refrigerator according to the eleventh embodiment.

Fig. 14 is a front elevational view showing a door opening operation portion and a door opening operation display portion in the refrigerator in the twelfth embodiment.

Fig. 15 is a view showing the refrigerator in the fifteenth embodiment.

Fig. 16 is a view showing the refrigerator in the seventeenth embodiment.

Fig. 17 is a view showing the refrigerator in the eighteenth embodiment.

Fig. 18 is a view showing the refrigerator in the sixteenth embodiment.

Fig. 19 is a view showing the refrigerator in the fifteenth embodiment.

Fig. 20 is a view showing the refrigerator in the twentieth embodiment.

Fig. 21 is a view showing the refrigerator in the nineteenth embodiment.

Fig. 22 is a view showing the refrigerator in the twenty second embodiment.

Fig. 23 is a view showing the refrigerator in the twenty fourth embodiment.

Fig. 24 is a view showing the refrigerator in the sixteenth embodiment.

Fig. 25 (a) and Fig. 25 (b) are views showing the refrigerator of the twenty fifth embodiment.

Fig. 26 is a view showing the refrigerator in the twenty sixth embodiment.

Fig. 27 is a view showing a refrigerator according to another embodiment.

Fig. 28 is a view showing a refrigerator according to another embodiment.

Fig. 29 is a view showing the refrigerator in the twenty-seventh embodiment.

Fig. 30 is a perspective view showing a state in which the refrigerator of the twenty-seventh embodiment is opened.

Fig. 31 is an enlarged perspective view showing a refrigerator compartment portion of the refrigerator in the twenty-seventh embodiment.

Fig. 32 is a block diagram showing the door opening control in the refrigerator in the twenty-seventh embodiment.

Fig. 33 is a flowchart showing a state in which the left and right doors of the refrigerating compartment of the twenty-seventh embodiment are not automatically opened by the user.

Fig. 34 is a schematic diagram showing a cross section of, for example, a right door of the refrigerator in the twenty-seventh embodiment.

Fig. 35 is a block diagram showing the door opening control in the refrigerator in the twenty-seventh embodiment.

FIG. 36 is a flowchart showing an operation example of the door opening operation unit having the function of the proximity sensor according to the twenty-seventh embodiment.

Figure 37 is a front elevational view of the refrigerator in the twenty-eighth embodiment.

Fig. 38 is a perspective view showing a state in which the refrigerator of the twenty-eighth embodiment is opened.

Fig. 39 is an enlarged perspective view showing a refrigerator compartment portion of the refrigerator in the twenty-eighthth embodiment.

Fig. 40 is a block diagram showing the door opening control in the refrigerator in the twenty-eighthth embodiment.

41(a) to 41(d) are diagrams showing an example in which the door opening operation portion of the door shown in Figs. 37 to 39 functions as a human body detecting member for detecting a human body of the refrigerator user.

Fig. 42 is a front elevational view showing the refrigerator in the twenty-ninth embodiment.

Figure 43 is a block diagram showing the door opening control of the refrigerator including the human body detecting member shown in Figure 42.

Fig. 44 is a cross-sectional view showing the upper portion of the refrigerator in the twenty-th embodiment in the front-rear direction.

45 is a cross-sectional view of the upper portion of the refrigerator according to the first modification of the twenty-ninth embodiment, taken along the front-rear direction.

Fig. 46 is a cross-sectional view of the upper portion of the refrigerator according to a second modification of the twenty-ninth embodiment, taken along the front-rear direction.

Fig. 47 is a cross-sectional view showing the upper portion of the refrigerator according to a third modification of the twenty-ninth embodiment in the front-rear direction.

Fig. 48 is a front elevational view showing the refrigerator 1 of the 30th embodiment.

Figure 49 is a plan view of the refrigerator shown in Figure 48.

Figure 50 is a side elevational view of the refrigerator shown in Figure 48.

51(a) and 51(b) show examples of the configuration of the substrate of the door opening operation unit.

Fig. 52 is a view showing the proximity sensor and the guard electrode disposed on the substrate of the door opening operation portion shown in Figs. 51(b) and 51(b).

53 is an exploded perspective view showing a configuration example of an opening and closing operation unit.

FIG. 54 is a block diagram showing electrical connections between the control unit, the opening and closing operation unit, and the door opening drive unit as the door opening device.

55(a) to 55(c) are diagrams showing an example of a storage structure of a substrate in a left door and a right door.

Fig. 56 is a front elevational view showing the refrigerator 1 of the 31st embodiment.

57 is a view showing a configuration example of the vicinity of the door opening operation portion 651 including the proximity sensor 607 in the left door 21 shown in FIG. 56 (or the vicinity of the door opening operation portion 652 including the proximity sensor 608 in the right door 22). Sectional view of the V1 line.

Fig. 58 is a cross-sectional view taken along line V2-V2 of the control operation unit 650 shown in Fig. 56.

59 is a block diagram showing an electrical connection between a control unit, a control operation unit, a door opening operation unit, and a door opening drive unit as a door opening device.

60(a) to 60(d) are diagrams showing the control of the left door when the proximity sensor of the left door shown in FIG. 56 detects the proximity of the user's finger and the finger touches the electrode of the touch button of the door opening operation portion. A diagram of an example of a case where the operation unit and the door opening operation unit are turned on.

Fig. 61 is a front elevational view showing the refrigerator in the 32nd embodiment.

Figure 62 is a plan view of the refrigerator shown in Figure 61.

Figure 63 is a side elevational view of the refrigerator shown in Figure 61.

64(a) and 64(b) show examples of the configuration of the substrate of the door opening operation unit shown in Fig. 61.

Fig. 65 is a view showing the proximity sensor and the guard electrode disposed on the substrate of the door opening operation unit shown in Figs. 64(a) and 64(b).

Fig. 66 is an exploded perspective view showing a configuration example of the door opening operation portion.

Fig. 67 is a block diagram showing an electrical connection between a control unit, a door opening operation unit, and a door opening drive unit as a door opening device.

68(a) to 68(c) are diagrams showing an example of a storage structure of a substrate in a left door and a right door.

Fig. 69 is a front elevational view showing the refrigerator 1 of the thirty-third embodiment.

Fig. 70 is a cross-sectional view showing a configuration example of an operation detecting unit on the ZR-ZR line shown in Fig. 69.

Fig. 71 is a block diagram showing electrical connections between a control unit, an operation detecting unit, and a door opening driving unit as a door opening device.

72(a) and 72(b) show the proximity operation of the proximity sensor in a predetermined specific order by the user's action (gesture) such as the side or the elbow of the palm or the hand. An example diagram.

73(a)-73(d) are diagrams showing an example of performing a proximity operation on a proximity sensor in another predetermined specific order.

74(a) to 74(d) are diagrams showing another embodiment.

Fig. 75 is a circuit diagram showing the principle of proximity sensor detecting a touch of a finger.

Fig. 76 is a view showing the basic structure of the proximity sensor.

Fig. 77 is a diagram for explaining switching of the proximity mode and the electrostatic touch mode in the proximity sensor.

78(a) and 78(b) are diagrams for explaining a change in the proximity range in the proximity sensor.

Hereinafter, embodiments will be described in detail based on the drawings. In addition, the same or similar constituent elements are used for the same or similar constituent elements for explanation.

[First Embodiment]

As shown in FIG. 1 and FIG. 2, the refrigerator 1 of the first embodiment includes a cabinet 11 as a refrigerator main body. The casing 11 includes a refrigerating compartment 12, a vegetable compartment 13, a switching chamber 14 that can switch the set temperature in the refrigerator, and a freezing compartment 15 from the upper stage. Further, an ice making chamber 16 is provided on the left side of the switching chamber 14.

As shown in FIG. 1 to FIG. 3, in order to cover the front surface opening portion of the refrigerator compartment 12, the left and right pair of left door 21 and right door 22 are opened and closed by the hinge portion of the left end portion and the right end portion, respectively. Install it in a way. Further, pull-out doors 23, 24, 25, and 26 are provided in the vegetable compartment 13, the switching compartment 14, the freezing compartment 15, and the ice making compartment 16, respectively. On the back surface of the vegetable compartment 13, an evaporator for refrigeration (not shown) for cooling the refrigerator compartment 12 and the vegetable compartment 13 is disposed. A refrigerating evaporator (not shown) for cooling the switching chamber 14, the freezing compartment 15, and the ice making compartment 16 is disposed on the rear surfaces of the switching chamber 14 and the freezing compartment 15. On the back side of the vegetable compartment 13, a control unit 56 is further provided, and the control unit 56 includes a micro computer for controlling the refrigerator 1.

Each of the left door 21 and the right door 22 is configured such that a front plate 21A, 22A made of glass that is colored and transparent is attached to an opening of a flat inner plate that is open at the front surface, and a vacuum is disposed in the inner cavity. A heat insulating material is disposed in a cavity portion that is not completely filled with the vacuum heat insulating material, and a polyurethane heat insulating material (hereinafter also referred to simply as a urethane heat insulating material) or a predetermined Molded solid insulation (eg EPC). The concentration of the chromaticity of the front surface plates 21A and 22A is such that a filler such as a heat insulating material on the back side of the front surface plates 21A and 22A is not visible from the outside in a state where external light is received. Moreover, the concentration of the chromaticity of the front surface plates 21A, 22A is also: A seven-segment LED display device that displays a change in the value of a light-emitting diode (LED), such as a light-emitting diode (LED) display lamp, a cooling function name, a cooling intensity, and the like, which will be described later. In the light state, the light is permeable and can be seen from the surface side. Furthermore, it is not limited to the 7-segment LED, and may be a liquid crystal display (LCD) or an electroluminescence (EL) device.

At a right end portion of the left door 21, that is, a portion on the open side facing the left end portion of the right door 22 in the closed state, a rotating partition 31 for holding the right door 22 in the closed state is provided. A sealed state of the left end portion, that is, the portion on the open side. An anti-condensation heater for preventing dew condensation is built in the inside of the rotary separator 31.

On the back side of the front surface plate 22A of the right door 22, a capacitance type control operation portion 50 for operating the refrigerator by a touch operation from the surface of the front surface plate 22A is provided. The control operation unit 50 is provided with an infrared light receiving unit for detecting an environmental state around the refrigerator; a home button; detecting a touch on the return button and penetrating the display operation button name, and cooling An LED display lamp such as a function name or a cooling intensity; and a 7-segment LED display device that transmits a change value such as a temperature value.

On the back side of the front surface plate 21A of the left door 21 and the lower side of the front surface plate 22A of the right door 22, left and right laterally elongated door opening operation portions 51 and 52 are respectively provided. Further, on the surfaces of the front surface plates 21A and 22A, door opening operation display portions 51A and 52A indicating the door opening operation portion and displaying the door opening operation direction are provided. Here, On the door opening operation display portion 51A of the left door 21, a leftward arrow mark is provided, and the leftward arrow mark recognizes a case where the finger is slid in the left direction in a touched state to perform a door opening operation. On the door opening operation display portion 52A of the right door 22, a rightward arrow mark is provided, and the rightward arrow mark recognizes a case where the finger is slid in the right direction in a touched state to perform a door opening operation.

The door opening drive portions 54, 55 are provided at positions corresponding to the vicinity of the open side end portions of the upper sides of the left door 21 and the right door 22, respectively, at the left and right places near the front end of the top plate surface of the casing 11. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet to push the upper side of the open side end portions of the left door 21 and the right door 22 forward. The doors are automatically opened. In addition, the details will be described later. However, when the left door 21 is opened and the finger is slid in the left direction in the state of the arrow mark near the right end or the right end of the left door opening operation display portion 51A, the door opening operation portion 51 senses the continuous When the control unit 56 determines that the door opening operation command is issued, the door opening drive unit 54 of the left door 21 is operated to automatically open the left door 21. On the other hand, if the finger is slid in the right direction in the state of the arrow mark near the left end or the left end of the right door opening operation display portion 52A in order to open the right door 22, the door opening operation portion 52 senses the continuous touch and touches The detection signal is sent to the control unit 56. When the control unit 56 determines that the door opening operation command is issued, the door opening drive unit 55 of the right door 22 is operated to automatically open the right door 22.

Further, the cooling control by the control unit 56 in the refrigerator according to the first embodiment is an ordinary cooling control, and is not particularly limited. For example, a compressor and an operation surface are provided. A panel, an anti-condensation heater, an ice making device inside the ice making compartment, a refrigerator fan, a freezer fan, and a defrosting heater are connected to the control unit 56 and controlled.

The arrow marks on the door opening operation display portions 51A and 52A are not limited to the display, and may be any shape or form of the mark as long as it is easily recognized as a display operation of the door opening operation by touching the page and sliding in the right direction or the left direction. Not limited.

On the left door 21 and the right door 22, handles 61 and 62 are provided in such a manner that the fingers are inserted upward by the lower end portions of the lower side than the door opening operation display portions 51A and 52A, respectively. With the operation of pulling on the front side, the left door 21 and the right door 22 can be manually opened independently.

Next, an automatic door opening operation of the refrigerator of the first embodiment will be described. As shown in FIG. 4, in the door opening operation portions 51 and 52, the front surface plates 21A and 22A are respectively opposed to the left and right lateral directions of the door opening operation display portions 51A and 52A. The capacitive touch sensors 51-1 to 51-5 and the capacitive touch sensors 52-1 to 52-5 are arranged in series. The capacitive touch sensors 51-1~51-5 and the capacitive touch sensors 52-1~52-5 are set to detect the electrostatic capacitance change caused by the user's touch, respectively, and The touch detection signal is sent to the control unit 56.

Therefore, when the user wants to open the right door 22 and causes the finger to touch the arrow mark on the left end in the portion of the door opening operation display portion 52A, and slides the finger in the right direction in the touch state, the capacitive touch sensor 52-1 The sensor detecting the change of electrostatic capacitance in ~52-5 sends the touch detection signal according to the order of touch To the control unit 56. Therefore, the control unit 56 determines whether or not the door opening operation is based on the logic of the flowchart of FIG. 5, and if it is determined that the door opening operation is normal, the door opening drive unit 55 outputs a door opening drive signal to open the right door 22 automatically. In the case of the door opening operation of the left door 21, the operation of sliding the left door 21 in the state in which the finger is in the left direction in the state of the arrow mark near the right end or the right end with respect to the door opening operation display portion 51A of the left door 21 is also determined. Open the door.

The logic for opening the door here is as follows. When at least three of the five sensors on the left and right are detected within a predetermined time (for example, 0.5 seconds or 1 second) and in accordance with the arrangement order, it is determined that the door opening operation is performed, so that the corresponding door is automatically turn on. Here, the door opening operation of the right door 22 will be described.

When any one of the arrow marks of the door opening operation display portion 52A of the right door 22 is touched, the corresponding capacitive touch sensor on the side of the door opening operation portion 52 (since the arrow mark near the left end or the left end is usually touched, therefore, this is The sensor 52-1) set to the left end performs touch detection and transmits a touch detection signal to the control unit 56. The control unit 56 starts the determination process of the door opening operation after receiving the signal (step S0). And, the time count is first started (step S1).

When the touch detection is performed by the right-side, right-right adjacent capacitive touch sensors 52-2, 52-3 and the detection signal is transmitted before the time counts up, the control unit 56 receives the detection signals. The signal is judged to be that the touched sensors are three consecutive in the right direction, and are the sliding operation in the forward direction as the door opening operation direction of the right door 22 from left to right. That is, the determination in step S2 is NO (NO), the determination in step S3 is YES, and the determination in step S4 is YES, and the determination in step S5 is YES. As a result, the control unit 56 determines that the door opening drive operation for the right door 22 is output, and outputs the door opening drive command to the door opening drive unit 55 of the right door, and causes the door opening drive unit 54 to operate to automatically open the right door 22 (step S6).

Furthermore, if the sliding is stopped in the middle, or the speed of the sliding is slow, or the length of the sliding is short, it cannot be determined that three or more arrow marks are forwardly touched in a fixed time (for example, 0.5 second or one second). Therefore, the determination processing of the door opening operation is temporarily stopped, and the next touch detection is waited for (the branch is NO in step S2 and jumps to step S7 to stop the judgment processing). Further, even if the sliding operation is performed in the left direction from the right end side on the door opening operation display portion 52A, the right door is not opened (the flag is NO in step S5 and the process proceeds to step S7 to stop the determination process).

The same is true for the determination process of the door opening operation of the left door 21. However, in the case of the left door 21, the direction is opposite to that of the right door 22, and it is determined that the door opening operation is performed when the arrow mark near the right end or the right end on the touch opening operation display portion 51A is slid in the left direction. Therefore, even if the arrow mark near the left end or the left end slides in the right direction, the left door does not open.

Further, in the automatic door opening control described above, the control unit 56 determines the program for opening the door and driving the door opening drive units 54, 55. Alternatively, instead of using the following program, the door opening operation units 51 and 52 may be used. Equipped with a microcomputer, capacitive touch sensors 51-1~51-5, and capacitive touch sensors 52-1~52-5 detect changes in electrostatic capacitance caused by user's touch and input touch detection signals When the door opening operation units 51 and 52 determine that there is a sliding operation in a fixed direction within a predetermined time, the microcomputer finally determines that there is a door opening operation, and will open the left door or hit the door. The command signal for opening the right door is transmitted to the control unit 56, and when receiving the door opening command, the control unit 56 causes the door opening drive unit 54 or the door opening drive unit 55 to perform the door opening drive.

Next, the loading of the door opening operation portions 51 and 52 into the left door 21 and the right door 22 will be described with reference to Figs. 6 and 7 . In the following description, the door opening operation portion 52 of the right door 22 will be described, but the door opening operation portion 51 of the left door 21 is also the same.

First, the door opening operation unit 52 is configured such that a capacitive touch sensor 52-1 is arranged side by side in the longitudinal direction L on the elongated substrate 52P having a short W direction and a long L direction. ~52-5. In addition, the door opening operation portion 52 is provided inside the lower end of the right door 22 in a posture in which the longitudinal direction L direction is the left-right direction and is in close contact with the back surface of the front surface plate 22A.

Therefore, in the vicinity of the left end of the lower end portion of the right door 22, an operation portion installation space 64 that opens toward the lower side is formed. The width of the left and right lateral direction of the operation portion installation space 64 is slightly longer than the length of the longitudinal direction L of the door opening operation portion 52, so that the door opening operation portion 52 can be made from the lower surface opening portion in a state where the longitudinal direction L is lateral Slide on the ground to insert. Further, the door opening operation portion 52 is held in a posture in which the longitudinal direction L is aligned with the left-right direction, and is inserted into the operation portion installation space 64 upward from the lower surface opening portion, and the door opening operation portion 52 is slid to reach the operation portion. The upper end of the space 64 is set and fixed. In addition, the door opening operation portion 52 is temporarily fixed by a tape or the like while being in close contact with the back surface of the front surface plate 22A. Then, the liquid urethane is injected into the inner cavity of the right door 22 as the heat insulating material 22B, and is foamed and solidified, whereby the door opening operation portion 52 is fixed in the operation portion installation space 64. The door opening operation portion 51 of the left door 21 is also installed in accordance with the same procedure.

By using such an installation program, the door opening operation portions 51 and 52 are provided in the operation portion installation space 64 in a posture in which the left and right lateral T directions are long and the vertical direction W direction is short. Therefore, it is possible to avoid the following state, that is, The single-ended tilting in the longitudinal direction L direction, even if the right capacitive touch sensor 52-5 is in close contact with the back surface of the front surface plate 22A, the capacitive touch sensor 52-1 on the left side is not closely connected. The back surface of the front surface plate 22A is fixed in a state of being lifted up, or conversely, even if the capacitive touch sensor 52-1 on the left side is in close contact with the back surface of the front surface plate 22A, the capacitive touch feeling on the right side The detector 52-5 is also not closely attached to the back surface of the front surface plate 22A but is fixed in a tilted state, so that all the capacitive touch sensors arranged side by side and left and right can be arranged as shown in FIG. 52-1 to 52-5 are reliably fixed in a state in which they are in close contact with the back surface of the front surface plate 22A.

[Other Embodiments]

As the simplest door structure of the refrigerator, a single-open one door that is left-opened or right-opened can be disposed in front of the refrigerator compartment. As the structure of the door, the following structure can also be adopted, that is, in the compartment A front surface of the heat-sensitive door body is provided with a transparent transparent non-conductive front surface plate, and a control operation portion for performing an operation of changing a cooling control content of the refrigerator, and a door opening operation portion for opening the door The operation unit is used to operate the door opening operation of the door opening device. In other words, a configuration in which one door is provided with the right door 22 shown in FIGS. 1 to 3 (second embodiment) may be employed.

Further, the control operation unit 50 and the door opening operation units 51 and 52 are not limited to the capacitive touch sensor, and are not formed on the surface side of the front surface plates 21A and 22A as long as they are pressure sensitive sensors, infrared sensors, and the like. Bump and can be used for user operations The operator who performs the sense of the line is not limited (the third embodiment).

Further, it is preferable to adopt a setting in which the control operation unit 50 and the door opening operation units 51 and 52 sense an operation input for different operation methods. For example, a setting may be adopted in which, if the operation unit 50 is controlled, a point touch to the corresponding portion is sensed to accept an operation input, but in the case of the door opening operation portions 51 and 52, if the corresponding portion is not touched In the state where the sliding distance is equal to or greater than the fixed distance, the door opening operation input is not recognized (fourth embodiment).

Moreover, the door opening operation units 51 and 52 can also detect an operation of sequentially touching a plurality of parts in a predetermined order or in a predetermined direction instead of detecting the operation of touching and sliding with a finger (the fifth embodiment) ). Further, as another modification, the door opening operation portion may be provided at the upper end portion of the door instead of the installation at the lower end portion of the door (sixth embodiment).

Further, as another embodiment, the following modified examples can be employed. As shown in FIG. 8, the door opening operation display portions 51A-1 and 52A-1 for the door opening operation portions 51 and 52 are set to the front surface plate in the case where the left and right doors 21 and 22 are the split type refrigerators. 21A, 22A is at the same height from the ground. In the door opening operation display portion 51A-1 of the left door 21, if the user touches and slides near the left end with the finger to the vicinity of the right end, the left door 21 can be opened. In the door opening operation display portion 52A-1 of the right door 22, if the user touches and slides near the left end with the finger, the right door 22 can be opened. Further, at this time, the left and right doors 21, 22 can be simultaneously opened by the following operation, that is, the finger is operated in one-way and continuously from the door opening operation display portion 51A of the left door 21 as indicated by an arrow A1 in FIG. Left end of -1 The vicinity is slid to the vicinity of the right end of the door opening operation display portion 52A-1 of the right door 22 (seventh embodiment).

Further, as shown in FIG. 9, it is also possible to set the door opening operation display portions 51A-2 and 52A-2 for the door opening operation portions 51 and 52 in the case where the left and right doors 21 and 22 are the split type refrigerators. Each of the doors 21, 22 can be opened by sliding operation in the opposite direction to the open side of each of the doors 21, 22 in the vicinity of the open ends of the front surface plates 21A, 22A of the respective doors 21, 22. At this time, since the right end is the open end with respect to the left door 21, the door opening operation display portion 51A-2 is displayed to slide in the left direction from the right end side thereof. Further, with respect to the right door 22, the left end thereof is an open end, and therefore the door opening operation display portion 52A-2 is displayed to slide in the right direction from the left end side thereof. By adopting such a setting, the user slides the finger in the direction in which the open end of the door is opened by the door opening operation during operation, so that the user's finger interferes with the open end of the door that is opened, and the operation can be performed. Smooth opening operation (eighth embodiment).

Moreover, as shown in FIGS. 10(a) to 10(e), the following settings can be adopted: whether the refrigerator door is a single-open type or a split-type two doors, both of which are at the door (here, the door 22) The door opening operation portion 52 is disposed obliquely horizontally or vertically or toward the corner in the vicinity of any of the four corners of the upper, lower, left, and right sides, and the door opening operation display portion 52A-3 is also provided to the front surface plate 22A of the door 22 corresponding thereto. The position is opened, and when the door opening operation direction is the direction toward the outside of the door, the door opening operation is performed (ninth embodiment).

For example, Fig. 10(a) shows a setting example in which the door opening operation portion 52 and the door opening operation display portion 52A-31 are provided in the horizontal direction at the lower end portion of the open end side of the door 22, by facing the open end side of the door 22. Slide in the right direction, from And can open the door. In the case of this modification, the door opening operation portion 52 and the door opening operation display portion 52A-31 may be similarly provided on the upper end portion of the door 22 on the open end side. Fig. 10 (b) shows a setting example in which the door opening operation portion 52 and the door opening operation display portion 52A-32 are provided in the vertical direction at the lower end of the open end side of the door 22, and are carried out from the top to the bottom toward the lower end of the door 22. Slide the door to open the door. Fig. 10 (c) shows a setting example in which the door opening operation portion 52 and the door opening operation display portion 52A-33 are provided in the vertical direction at the upper end of the open end side of the door 22, and the bottom door is directed upward from the upper end. Slide the door to open the door. (d) of FIG. 10 shows a setting example in which the door opening operation portion 52 and the door opening operation display portion 52A-34 are provided in the vertical direction at the lower end of the rotary hinge end side of the door 22, and the door opening portion 22 faces the lower end of the door 22 from the top to the bottom. Slide the door to open the door. In the case of this modification, the door opening operation portion 52 and the door opening operation display portion 52A-31 may be provided at the upper end portion of the rotary hinge end side of the door 22, and the sliding operation may be performed from the bottom up. Come open the door. Further, Fig. 10(e) shows a setting example in which a corner portion of the four corners of the door 22 is a lower corner portion on the open end side, and the door opening operation portion 52 and the door opening operation display portion 52A-35 are provided in the oblique diagonal direction. The sliding operation is performed from the obliquely upward direction toward the lower corner of the door 22, so that the door can be opened. In the case of this modification, the door opening operation unit 52 and the door opening operation display unit 52A-35 may be provided at any one of the other three corners of the four corners of the door 22, and the angles are inclined toward the respective corners. Slide the door from bottom to top or from top to bottom to open the door.

Moreover, as shown in FIG. 11, the following structure may be employed: whether the refrigerator door is a single-open type or a two-way door, for the back of the front surface plate 22A of the door 22 The electrostatic capacitance touch sensors 52-1 to 52-5 provided in the door opening operation portion 52 provided on the surface side partially overlap each other in the direction A3 different from the sliding operation direction A2. With the overlapping structure of the sensor, there is an effect that the sliding operation does not cause insufficient touch, and even if adjacent sensors are simultaneously touched each other, the change of the electrostatic capacitance is only larger in area. The sensor side is enlarged, so that it is not detected at the same time (the tenth embodiment).

Further, as shown in FIG. 12 and FIG. 13, the following structure may be adopted: regardless of whether the refrigerator door is a single opening or a split type, the door opening operation portion 52 incorporated in the door (also referred to herein as the door 22) is The sliding operation is detected by a sliding operation, and the plurality of sliding detection touch sensors are arranged in an annular shape or a matrix shape in the upper and lower sides, the left and right sides, and the plurality of electrodes are directed to a fixed pattern or the like. The sliding operation detects the door opening operation (the eleventh embodiment).

In the example of FIG. 12, the plurality of slide detecting touch sensors 52-1 to 52-8 in the door opening operation portion 52 incorporated in the door 22 are arranged in a ring shape, and for such a door opening operation portion 52, When three or more adjacent touch sensors are continuously touched in a manner of drawing a circle, a door opening operation is performed. Therefore, regardless of which of the arrows A4 to A6 is sliding, or whether the sliding operations are in the opposite directions, the door opening operation can be performed. Further, in the example of FIG. 13, the plurality of slide detecting electrodes 5211 to 5244 in the door opening operation portion 52 incorporated in the door 22 are arranged in a matrix on the up, down, left, and right sides, and for such a door opening operation portion 52, When three or more adjacent electrodes are continuously touched in the upward direction, the downward direction, or the obliquely upward direction and the obliquely downward direction as indicated by the arrows A7 to A13, the door opening operation is performed.

Further, as shown in FIG. 14, a structure is adopted in which the door opening operation portions 51, 52 of the doors 21, 22 are both regardless of whether the refrigerator door is a single opening or a split type two doors (shown here as a split type). Detecting a door opening operation based on a unidirectional sliding operation toward a prescribed one, and performing a door opening detection for the left door 21 when sliding from left to right from the side of the rotating hinge toward the open end side, and also for the right door 22 Door opening detection is performed when the rotary hinge side is slid toward the open end side and vice versa. At this time, the door opening operation display portions 51A and 52A are respectively formed with arrow marks toward the open end to indicate the slide operation direction (the twelfth embodiment). In the case of the door opening operation based on the sliding operation toward the open end thereof, in particular, the user usually comes to the center of the refrigerator from the outside of the refrigerator to perform the door opening operation, and the action route direction is consistent with the sliding operation direction, and has an effect of facilitating the door opening operation. .

Further, as another modified example, the following configuration can be employed. A human sensing component (such as an infrared sensor, a camera, etc.) that detects a person standing in front of the refrigerator door may be disposed on the door, and the human sensing component detects After the person, the control unit performs control to set the door opening operation to be active. Thereby, it is possible to prevent the refrigerator door from being opened arbitrarily due to water, static electricity, or the like (the thirteenth embodiment).

Further, instead of the rotary opening doors 21 and 22 before the refrigerating compartment 12, the opening of the refrigerating compartment doors 21, 22 may be provided on the drawing doors 23, 24 and the like of the vegetable compartment 13 or the switching compartment 14 or the like. Operating units 51 and 52 (fourteenth embodiment). Furthermore, at this time, the electric wiring is connected to the control unit 56 along the slide rail of the pull-out door.

Further, the refrigerator 1 of the embodiment may be configured as described below.

[Fifteenth embodiment]

As shown in FIG. 15, the control operation portion (also referred to as a control operation substrate) 50 can be inserted and housed in the G direction from the insertion port 50V formed in the door cap to the housing portion 50R, the door end cover It is a longitudinal side surface part of the right door 22 and constitutes the left and right upper and lower side surfaces of the door which supports the front surface board of a door. The door opening operation portion (also referred to as a touch-opening switch substrate) 52 can be inserted into the storage portion 52R in the G direction from the insertion port 52V of the side surface portion of the right door 22 in the longitudinal direction. Further, the door opening operation portion (touch opening switch substrate) 51 can be inserted into the storage portion 51R in the H direction from the insertion port 51V of the side surface portion of the left door 21 in the longitudinal direction.

As shown in Fig. 15, the handles (handles) 61, 62 are respectively disposed on the lower surface portion (lower side) of the left door 21 and the lower surface portion (lower side) of the right door 22, and the handles 61, 62 and the door opening operation portions 51, 52 are respectively disposed. The position of the lower corner of the left door 21 and the position of the lower corner of the right door 22 are disposed on different sides of the door. Further, the door opening operation portions 51, 52 and the handles 61, 62 may be located at different positions in the up and down direction.

Further, as shown in FIG. 19 to be described later, the right door 22 may include, for example, a front surface plate 22A as a glass plate, an inner plate 22K, and a door end cover 72, and an insertion port 50V is provided in the door end cover 72. Further, the accommodating portion 50R can be provided so as to continuously extend from the door end cover 72 toward the front surface plate 22A with the insertion port 50V, and the substrate can be inserted into the accommodating portion 50R.

Further, it is preferable that the space between the front surface plate 22A, the inner plate 22K, and the door end cover 72 on the outer side of the accommodating portion 50R is filled with a foam heat insulating material such as urethane or a vacuum heat insulating material. Insulate.

Further, the inserted control operation portion 50 or the door opening operation portion 51 may be in close contact with the front surface plate 22A by the elastic member pressed from the rear to the front surface plate 22A after the insertion, but in the case of the horizontally long substrate (the door opening operation portion 51 and the like) may be adhered to the back surface of the front surface plate 22A by directly using an adhesive or the like. In this way, the operational sensitivity can be improved.

LEDs 51M and 52M can be used as the door opening operation display portions 51A and 52A indicating the positions of the door opening operation portions 51 and 52. Further, as an arrow mark, an arrow mark printed directly on the glass may be used, or an arrow mark printed on a film may be placed on the back surface of the glass to make it visible under light.

The door opening operation portions 51, 52 for opening the left door 21 and the right door 22 shown in Fig. 15 use an electrostatic switch. In the left door 21 and the right door 22 as the revolving door, the electrostatic switch can be electrically connected to the control portion on the casing 11 side by using electric wiring, and therefore, since it is a revolving door of a refrigerating chamber having a relatively small temperature difference, an electrostatic switch can be used. The door opening operation units 51 and 52 are used. The electrostatic switch is not resistant to moisture and is therefore used for parts with a small temperature difference.

On the other hand, the door opening operation portion 71 for pulling the door, for example, the drawing door 25 for opening the freezing compartment 15, or the door opening operation portion 77 for opening the drawing door 23 uses a Hall integrated circuit ( Integrated circuit, IC) switch. Since the drawing door is configured to be extracted and detached from the casing 11 (fridge body), the door opening operation portion 77 and the control portion on the casing 11 side cannot be connected by electric wiring. Therefore, for example, as the door opening operation portions 71, 77, a magnet is disposed on the drawing door, and when the drawing door is pushed, the position of the magnet changes, and the switch of the Hall integrated circuit can be The position of the magnet was detected in a non-contact manner. Based on the signal from the Hall integrated circuit indicating that the position of the magnet has changed, the control unit operates the pressing member that presses the drawing door to open the drawing door.

Fig. 19 shows a horizontal cross section of the right door 22 shown in Fig. 15. For example, the right door 22 has a front surface plate 22A, an inner plate 22K, a reinforcing plate 70, a door end cover 72, and a substrate 74 that opens the door operating portion 52 as a glass plate. Inside the right door 22, a urethane member for heat insulation or a vacuum heat insulating material 73 having a thickness of 20 mm is disposed. The gap between the substrate 74 and the glass plate 22G is zero. The door end cover 72 covers the end portion of the front surface plate 22A as a glass plate. The front surface plate 22A of the glass plate is tempered glass. However, when the end portion of the glass plate is exposed, in order to protect the exposed end portion of the glass plate, a C-face chamfer is provided at the end portion where the glass plate is exposed. ).

Thereby, since the door opening operation portion 52 is operated to automatically open the door, the end portion of the front surface plate 22A may come into contact with other kitchen furniture or walls next to the refrigerator configuration, but the end surface may be prevented from being scratched. . Further, at the end portion of the front surface plate 22A, a preventing member for preventing contact by covering the end portion may be provided. Further, the substrate 74 of the door opening operation portion 52 is disposed so as not to have a gap with respect to the inner surface of the front surface plate 22A. Further, although it is a bilaterally symmetrical shape, the left door 21 has the same structure. Further, the sizes of the substrates of the left and right door opening operation portions 52 may be different. For example, the substrate on the gate side can be made larger than the substrate on the gate.

[Sixth embodiment]

As shown in FIG. 18, the door opening operation portion 51 is disposed below the position LL of the lower end line of the meat dish top plate inside the left door 21. That is, Fig. 24 shows the longitudinal direction of the refrigerator body section. As shown in Fig. 24, in the casing 11, a cold air duct through which the cold air from the cooler passes is located on the back side, and a discharge port is provided from the duct toward the door side, as shown in Fig. 24, cold air flows in the direction of the arrow. .

In the casing 11, a meat dish 99T is disposed, and a discharge port is provided on the rear side of the meat dish 99T. In the left door 21, the door opening operation portion 51 is disposed below the position LL of the lower end line of the meat dish top plate. As a result, the cold air passing through the meat dish 99T does not reach the door opening operation portion 51 in the left door 21 because it constitutes a windproof member such as a front wall of the front surface of the meat dish. Therefore, the cold air does not reach the door opening operation portion 51 (52) in the left door 21, so that the condensation phenomenon caused by the cooling of the door opening operation portion 51 (52) is not caused.

As shown in Fig. 24, in the case where the upper end of the pocket is located above the upper end of the meat dish 99T, cold air is not blown to the back of the door. Thereby, it is possible to prevent the cold air from being directly blown to a portion in which the portion of the door opening operation portion 51 (52) is made thinner in order to accommodate the door opening operation portion 51 (52), and thus it is easy to dew. Therefore, the signal is sent to the control unit without causing the condensation to operate, and the door opening operation unit 51 can be prevented from being inadvertently operated and the left door 21 can be freely opened. The same applies to the door opening operation portion 52 of the right door 22 shown in Fig. 18 .

Moreover, the meat dish 99T can also be used as a chilled chamber having a door and a withdrawal container that can be pulled out toward the front. The micro-freezing chamber may include a sealed space that can be sealed by a reinforced storage box and a door that accommodates the extraction container, or a vacuum pump as a pressure-reducing member to space the sealed storage space. The structure for decompression. Thereby, cold air from the meat dish 99T and the cold air ejection port provided on the back surface of the storage box can be prevented from directly reaching the door, and can be sealed by The reduced pressure insulation of the space insulates the icy temperature section of the spout to prevent heat transfer. At this time, it can be set to cover the discharge port by the storage case. Further, the cold air from the discharge port provided on the back surface of the sealed storage portion can be controlled by a damper as an air volume adjusting member, and in order to prevent dew condensation, it can be controlled in such a manner as to be determined by the measuring refrigerator. When the temperature sensor of the internal temperature detects that the temperature has become low, the damper is closed to make it difficult for the air to blow to the door.

Further, the vacuum heat insulating material placed inside the door may be disposed between the substrate and the discharge port disposed after the meat dish 99T behind the substrate having the door opening operation portion 52 to be thermally insulated so that the substrate does not condense. . Further, the substrate is housed in a resin-made housing portion having an air layer formed inside the door. In this case, condensation is particularly likely to occur. However, by providing a vacuum heat insulating material to prevent heat and cold in the refrigerator, it is possible to prevent heat. Condensation prevents detection when the door is accidentally opened. Further, by disposing a metal member having excellent heat conductivity around the accommodating portion, heat of the outside air can be transmitted to the accommodating portion to be heated, thereby preventing dew condensation.

Furthermore, a longitudinal partition may be provided, and a heat source may be housed inside the longitudinal partition, and the longitudinal partition may be disposed between the right door and the left door, and opened and closed in conjunction with the opening and closing operation of the single door. Further, by disposing the substrate or the accommodating portion in the vicinity of the heat source of the refrigerator, heat can be transmitted to the substrate or the accommodating portion, and dew condensation can be further prevented. The heat source can extend in the vertical direction together with the longitudinal partition portion, and the heater density or the like at the position of the substrate or the accommodating portion can be increased, thereby increasing the amount of heat conduction. The heater density may be arranged such that the heater wires are arranged in a double arrangement or bent, or a metal having good thermal conductivity (for example, aluminum) is extended from the heater toward the substrate side so that the heat is longitudinal. Passed inside the partition to the substrate side.

Further, as shown in FIG. 18, by installing the door opening operation portion 51 (52) at a position different from the position of the discharge port 79R in the casing 11, the cold air from the discharge port 79R can be prevented from reaching the door opening in the left door 21. Operation unit 51 (52). Therefore, since the cold air does not reach the door opening operation portion 51 (52) in the left door 21, the condensation phenomenon caused by the cooling of the door opening operation portion 51 (52) is not caused, and the signal is not sent to the condensation operation. The control unit can prevent the door opening operation unit 51 (52) from inadvertently opening the left door 21 (the right door 22).

[17th embodiment]

As shown in FIG. 16, the control operation unit 50 and the door opening operation unit 51 may be disposed on the single substrate 99 in the left door 21. The detecting unit and the detection signal processing unit of the door opening operation unit 51 (52) may include one substrate 99. The detection unit is housed in the storage unit 50R together with the detection signal processing unit. The microcomputer MC can be configured on the same substrate.

The control operation unit 50 and the door opening operation unit 52 can be disposed on different substrates in the right door 22. The control operation unit 50 and the microcomputer MC may be disposed on one substrate 99A, and the opening operation portion 52 may be disposed on 99B of a different substrate. Thereby, by setting the MC which may cause noise to be different substrates, it is possible to prevent the door opening operation portion 52 from erroneously detecting and arbitrarily opening the door. When the accommodating portion 50R has a accommodating portion that is different in the partitioning between the substrate 99A and the substrate 99B, the electrical signal line of the substrate 99B is connected to the accommodating portion of the other portion (for example, the substrate 99A is accommodated). The control unit (MC) of the storage unit) may be used. In particular, the connector (connecror) will be connected to the housing from other parts. When the storage portion of the substrate 99B is extended in advance and the substrate 99B is housed in the storage portion, the connection of the door can be easily performed by connecting the connection line of the substrate 99B to the connection connector.

Furthermore, the microcomputer MC may be disposed on the same substrate 99B or on another substrate 99C disposed at another position. Further, the substrate 99 may have a vertically long shape or a horizontally long shape.

As shown in FIG. 18, the control operation unit 50 and the door opening operation units 51 and 52 are not directly connected by wires. In other words, the control operation unit 50 and the door opening operation units 51 and 52 use different electrical wirings LA and LB, and are connected via the power supply board of the control unit 56, respectively. The reason for this is to reliably prevent the door opening and closing operations of the door opening operation portions 51 and 52 from being inadvertently caused by the noise generated from the control operation unit 50.

As shown in Fig. 15, the handles (handles) of the drawing doors 23, 24, 25, 26 can be disposed on the left side face or the right side face of the drawing doors 23, 24, 25, 26. The handle (handle) is not disposed on the front surface portion of the drawing door, and for example, only the door opening operation portion 77 of the drawing door 23 and the door opening operation portion 71 of the drawing door 25 are disposed on the front surface portion, respectively. Thereby, there is no handle (handle) on the front surface portion of the drawing door, and thus the appearance is improved.

[18th embodiment]

As shown in FIG. 17, in the right door 22, the arrangement position of the control operation unit 50 and the door opening operation unit 52 is different in the horizontal direction. That is, the control operation unit 50 is located at the position on the right side surface of the right door 22, and the door opening operation unit 52 is located at the position on the right side surface of the right door 22. Thereby, the control operation unit 50 is not disposed on the upper side of the door opening operation portion 52, and therefore, for example, even if the user touches with a wet hand, there is a water self-control operation. The portion 50 is dropped, and the water does not drip onto the lower door opening operation portion 52. Further, the distance Wb between the storage portion of the control operation portion 50 and the storage portion of the door opening operation portion 52 is smaller than the distance Wa between the control operation portion 50 and the door opening operation portion 52, and the distance Wb is required to be spaced apart by a minimum distance.

In addition, in the control operation unit 50, the storage unit that accommodates the substrate of the door opening operation unit 52 may be arranged in a lap so as to be vertically displaced and overlapped in the left-right direction. In the control operation unit 50, the substrates of the door opening operation unit 52 may be arranged so as to overlap each other in the left-right direction. When the capacitance type switch SA on each of the substrates does not overlap with the door opening operation display portion 52A, the water does not drip from the electrostatic capacitance type switch SA disposed above to the lower door opening operation portion 52A. Further, by overlapping the accommodating portion or the substrate, it is possible to overlap the door in a left-right direction with a small area, whereby the degree of freedom of layout increases. In addition, the form in which the respective substrates are arranged in the left-right direction may be applied to the case where the substrates are placed in the same housing portion.

The electrodes of the door opening operation portions 51 and 52 may have different detection sensitivities when operated by the user than the electrodes of the control operation unit 50. For example, by making the detection sensitivity of the electrodes of the door opening operation portions 51 and 52 larger than the electrodes of the control operation unit 50, the operation sensitivity of the door opening operation portions 51 and 52 can be improved. The electrodes of the operation operating portions 51 and 52 can be different from the opening operation portions 51 and 52 of the electrodes of the control operation unit 50, and can be made different by changing the area of the electrodes. The electrodes of the door opening operation portions 51 and 52 may include only one electrode instead of a plurality of electrodes.

For the operation of the control operation portion 50 and for the door opening operation portions 51, 52 The operation is performed by a different operation method. For example, a long press operation of 0.5 seconds is performed in the control operation unit 50, and a long press operation of 1 second is performed in the door opening operation units 51 and 52, for example. This is to detect the operation.

[19th embodiment]

As shown in FIG. 21, all of the LEDs of the control operation unit 50 are turned off, and when a certain switch of the control operation unit 50 is pressed, the plurality of LEDs or all of the LEDs of the control operation unit 50 are turned on. Further, it is possible to adopt a configuration in which, during the lighting period, the switch for the door opening operation portions 51, 52 is controlled to be invalid even if the operation is detected, and the door opening operation is invalidated without accepting the user's operation. (It can also be set to be effective and can be operated). During the lighting period, the LEDs of the door opening operating portions 51, 52 are turned off (OFF) without lighting. On the other hand, while the LEDs of the control operation unit 50 are all turned off, the switches of the door opening operation units 51 and 52 are effective and can be operated (may be invalid and cannot be operated). While the LEDs of the control operation unit 50 are all turned off, the LEDs of the door opening operation units 51 and 52 are turned on (ON) to be turned on.

As described above, the configuration in which the door opening operation portions 51 and 52 are disabled by using the control switch is effective, and has an effect of preventing the elbow portion from accidentally hitting the door opening operation portion when the control operation portion 50 is pressed with a finger. 51, 52 and the door was unexpectedly opened.

Further, when the LEDs of the control switch are turned on and the LEDs of the door opening operation portions 51 and 52 are turned off, if the lights are simultaneously turned on, for example, the child may be driven to simultaneously press the control operation portion 50 and the door opening operation portion 51. , 52, thereby causing the door to be opened, but this problem can be solved by adopting the structure.

In addition, even when both the control operation unit 50 and the door opening operation units 51 and 52 are effective and are detected to be pressed at the same time, it is possible to notify the operation of the door opening operation units 51 and 52 by display, voice, or the like. This can evoke attention.

As shown in FIG. 17, the switch SA and the switch SB which have different shapes of the control operation unit 50 can be closed by the same operation method with the same operation time and the same operation sensitivity. The switch SA and the switch SB of the same operation mode are located on one side of the substrate. Further, the door opening operation portions 51 and 52 can also be operated in the same manner as the switch SA, and this configuration can be used in each embodiment.

As shown in FIG. 18, the harness of the electric harness LA of the control operation part 50, the harness of the electric wiring LB of the door opening operation parts 51 and 52, and the heater wire are not aggregated. That is, they can be arranged separately in the door and approached at the hinge portion of the door passing through the casing. Moreover, an alternating current (AC) line and a direct current (DC) line can be bundled independently. This is to prevent noise.

As shown in Fig. 15, for example, the front surface plate 22A as a glass plate shown in Fig. 19 of the right door 22 is tempered glass, but the reinforcing plate 70 may be added and a scattering preventing film may be disposed. In order to protect the end portion of the front surface plate 22A, a door end cover 72 is disposed to cover the end portion of the front surface plate 22A.

However, unlike FIG. 19, in the case where the door end cover does not cover the end portion of the front surface plate 22A and the end portion of the glass plate 22G is in an exposed state, the C surface which is a chamfered surface can be formed at the end portion of the glass plate 22G. Corner or R face. The front surface plate 22A as the glass plate is tempered glass. However, when the end portion of the glass plate is exposed, a C-face chamfer is provided on the glass plate to protect the end portion of the glass plate. When the door is accidentally opened by providing the opening and closing door operation portion, it is possible to prevent the end portion from hitting a certain place and being damaged. Further, although it is a bilaterally symmetrical shape, the left door 21 has the same structure.

The door opening operation portions 51, 52 shown in Fig. 17 must be prevented from malfunction. Therefore, as shown in FIG. 19, the vacuum heat insulating material 73 is disposed, and the vacuum heat insulating material 78 has a heat insulating thickness of 20 mm or more and is disposed by the vertical partition portion, so that the vacuum heat insulating material 78 is not formed on the vacuum heat insulating material 78. . A heater (not shown) is disposed in the vicinity of the door opening operation portions 51 and 52, and a vacuum heat insulating material 78 is disposed on the back surface of the door opening operation portions 51 and 52. Thereby, the door opening operation portions 51 and 52 are prevented from dew condensation due to the influence from the low temperature portion.

The switches SA and SB of the control operation unit 50 shown in FIG. 17 have a function of adjusting the operation sensitivity, and have setting means for changing the sensitivity or the predetermined time. Thereby, the operational sensitivity at the time of operating the switches SA, SB or 51A, 51B can be set different by using the setting member.

[Twentyth embodiment]

Fig. 20 is a plan view showing, for example, the drawing doors 23, 25 shown in Fig. 15. For example, the drawing doors 23 and 25 shown in Fig. 15 have door opening operation portions 77 and 71, respectively. When the substrate 82 of the door opening operation portions 77 and 71 is configured to be inserted downward from the upper surface portion of the drawing doors 23 and 25 and housed in the accommodating portion 81, the front surface portion of the drawing doors 23 and 25 is not provided. The gap is generated and thus beautiful, and the appearance of the glass surface of the front surface portion of the drawing doors 23, 25 is good.

The door opening operation portions 77 and 71 shown in Fig. 20 have a base plate 82 and a battery 83, and an elastic member 84 for pressing the substrate 82 to the inner surface of the front surface portion, the battery 83 power is supplied to the door opening operation units 77 and 71. As described above, it is possible to prevent the noise from entering the door opening operation portions 77 and 71 and the door being freely opened as compared with the case where the following electric wires are guided to the door along the metal rail.

When the battery 83 shown in FIG. 20 is used instead of the power supply type in which electric power is taken from another place, the electric wiring may be guided to the door along the metal rail, and may be moved according to the opening and closing operation of the door. The wiring length of the distance amount at the time of maximum extraction is distorably arranged.

At this time, the noise may be added to the electric wiring along the metal track guiding the drawing door, so a noise filter for removing noise, that is, a noise filter, which is a noise filter, may be provided. The door opening operation portions 77, 71 are entered, or the microcomputers for instructing the opening operation are entered from the door opening operation portions 77, 71. Further, an insulating member (noise removing member) may be provided around the electric wiring arranged along the metal rail so as not to be in direct contact with the metal, thereby removing noise (the twenty-first embodiment).

As shown in Fig. 16, for example, in the drawing doors 23, 24, 25, 26 having glass plates, for example, the drawing door 25 is at a portion other than the front surface portion of the glass of the drawing door 25 and is a door end of a different material. A lid (for example, made of resin) is provided with a push button 95. The drawing door 25 can be opened by pressing the push button 95 made of resin.

[Twenty-second embodiment]

Fig. 22 is a horizontal sectional view showing the drawer door 23 (24, 25, 26) and the casing 11 of the refrigerator, and is disposed between the drawer door 23 (24, 25, 26) and the casing 11 of the refrigerator. Member 120. The pressing member 120 is provided with a gap DH between the drawing door 23 (24, 25, 26) and the casing 11 of the refrigerator. Overcoming the pressing member by the user The force of 120 presses the drawing door 23 (24, 25, 26) in the pressing direction indicated by the arrow, so that the transmitting portion 131 of the non-contact distance sensor 130 approaches the receiving portion 132. Thereby, the distance sensor 130 detects the distance. When the detected distance is less than the predetermined distance, the door opening operation portion 77 (71) issues an instruction to the control portion to open the drawing door by pushing out the member.

As shown in FIG. 17, the door opening operation portions 102, 102, 103, 104 for opening the drawing doors 23, 24, 25, 26 may be disposed, for example, on the left door 22. The door opening operation portions 102, 102, 103, and 104 are designed to match the arrangement shapes of the drawing doors 23, 24, 25, and 26. Thereby, the user can easily grasp it visually, and can easily open the required drawing door without changing the posture.

The left door 21, the right door 22, and the drawing doors 23, 24, 25, 26 are all provided with no handles (handles) on their front surface portions, so that they can be formed in an all flat.

[23rd embodiment]

As shown in FIG. 15, for the gaps X and Y between the drawing doors 23, 24, 25, and 26, the gap X>the gap Y is shown. In other words, the gap Y between the drawing door 23 having the door opening operation portion 77 and the drawing door 25 having the door opening operation portion 71 is set smaller than the gap X between the drawing doors 24 and 26 having no door opening operation portion. That is, the gap X of the drawing doors 24 and 26 having the handle 140 without the door opening operation portion is formed larger than the gap Y between the drawing door 23 having the door opening operation portion 77 and the drawing door 25 having the door opening operation portion 71, so that Put it in by hand. Further, the drawing door 23 having the door opening operation portion 77 and the drawing door 25 having the door opening operation portion 71 may be provided with a handle on the left and right side surface portions of the drawing door. At this time, the handle can be formed by providing a recess on the end cover of the supporting glass plate.

In order to open and close the drawing door having the glass plate, as the member for detecting the displacement amount of the door shown in FIG. 22, the non-contact distance sensor 130 is used, so that the drawing door with the glass plate is pushed slightly in the direction of the arrow. The sliding door can be opened.

As shown in FIG. 16, the control operation unit 50 may be disposed in one or both of the left door 22 and the right door 22.

[24th embodiment]

As shown in FIG. 23, in the upper part of the glass plates (front surface plates 22A and 22A) of the left door 22 and the right door 22, the frame of a door is provided, and the end cover 150 as a decoration part is arrange|positioned. The end cover 150 has a protrusion 151 that is protruded toward the outside (upward), and the protrusion 151 collides with the pressing member 162 of the pushing member 160. The protrusion 151 is disposed at a position separated from the front surface plates 21A, 22A as the glass sheets, and when the pressing member 162 of the pushing member 160 presses the protrusion 151 to open the left door 21 or the right door 22, the front surface plates 21A, 22A are not subjected to force. Impact. Inside the end cap 150, reinforcing ribs 162, 163, 164, 165 are formed, and glass sheets (front surface plates 21A, 22A) are embedded in the reinforcing ribs 162, 163, and profiles are fixed in the reinforcing ribs 163, 164 Font-shaped reinforcing plate 169. An inner plate 170 is disposed on the reinforcing rib 165. Between the front surface plate 21A (22A) as a glass plate and the inner plate 170, a urethane is embedded for reinforcement.

Each of the above-described embodiments is not limited to the refrigerator having the split door shown in each drawing, and may be applied to a single-door refrigerator.

[25th embodiment]

Figure 25 (a) shows the plane of the refrigerator, for example, the drawing door 25, at the drawing door The sides of the 25 have walls 200 of the building. A concave handle 201 is provided on the side surface portion 25S of the left and right sides of the drawing door 25. In FIG. 25(b), the left side surface portion of the drawing door 25 is provided with a concave handle 202, but the left and right side surface portions are inclined surfaces 25G which are inclined toward the front side. Thereby, even if the wall 200 of the building exists on the right and left, since the inclined surface 25G is formed, a gap can be formed, so that the user can easily put the finger into the handle 202. Furthermore, at this time, the handle 202 can also be in a shape that is easy to hold as shown on the right side of the figure.

[26th embodiment]

FIG. 26 shows an example of the drawing doors 210, 220, 230, and a concave handle 240 is provided on the upper surface portion of the drawing door 220. A door opening operation portion 77 is provided at a front surface portion of the drawing door 230. Since the door opening operation portion 77 is provided on the front surface portion of the drawing door 230, the front surface of the front surface portion can be a glass surface. The gap C between the drawing door 230 and the drawing door 220 can be smaller than the gap B between the drawing door 210 and the drawing door 220, and the appearance is improved.

Further, it is possible to open the left door 21 or the right door 22 when the user touches the door opening operation portion 51 or the door opening operation portion 52 shown in FIG. 15 instead of the hand, for example. Further, the user may open the left door 21 or the right door 22 when the user has passed a predetermined predetermined time after the finger touches the door opening operation portion 51 or the door opening operation portion 52.

In other words, the control unit controls the door to be opened at a timing different from the time when the user presses the door opening operation unit 51, and can detect when the user does not press the door opening operation unit 51 but leaves the operation unit to indicate that the door is open. Can also open the door at self-pressing When the operation unit 51 passes a predetermined time, the door is instructed to open. Further, it is also possible to instruct the door to open after a predetermined time elapses from the time of leaving the door opening operation portion 51.

The control is also performed as follows: when the control unit performs the door opening control, after the touch sensor detects the touch operation and does not detect the touch operation again, the door opening control is performed as follows. The above-described structure, that is, when the door opening control is performed, after the predetermined time has elapsed after the touch sensor detects the touch operation (for example, within 1 second, preferably 0.3 seconds), the door opening control is performed.

Thereby, compared with the case where the user opens the left door 21 or the right door 22 when the door opening operation portion 51 or the door opening operation portion 52 is touched with a finger, it is possible to suppress the hand touching the door opening operation portion 51 or the door opening operation portion 52 from hitting the open left door. 21 or right door 22.

In particular, when the user presses the door opening operation portion 51 or the door opening operation portion 52 with a finger, the hand touching the door opening operation portion 51 or the door opening operation portion 52 may hit the opened left door 21 or the right door 22, but as described above, When the user makes a predetermined predetermined time after the user touches the door opening operation portion 51 or the door opening operation portion 52, the left door 21 or the right door 22 is opened, whereby the touched hand can be prevented from hitting the opened left door 21 or the right door 22.

Further, the structure of the door as described above may be, in detail, a structure as described below.

Fig. 27 is an enlarged perspective view showing an exploded view of only one of the doors of the retractable door of the refrigerating compartment 12 of the refrigerator 1 shown in Fig. 1. The left door 21 and the right door 22 of the split door of the refrigerating compartment 12 of the refrigerator 1 shown in Fig. 1 and the drawer door 23 of each of the vegetable compartment 13, the ice making compartment 16, the upper freezing compartment 14, and the freezing compartment 15 are arranged. The structure of 25 is basically the same as that of the door shown in Fig. 27, and the structure example is explained by the door 103b.

The door 103b of the refrigerating compartment 12 shown in Fig. 27 has a glass plate 121 having an outer surface provided to cover the front surface of the door 103b over its entire surface. In FIG. 27, the side on which the glass plate 121 is provided is the front surface side of the door 103b, and the rear side opposite to the glass plate 121 is the rear side of the door 103b which faces the inside of the refrigerator compartment 12.

An upper door end cover 134, a lower side door end cover 133, a left side door end cover 135, and a right side door end cover 137 are provided on the upper and lower left and right outer peripheral portions of the glass plate 121, respectively. The upper, lower, left, and right door end covers hold and fix the upper, lower, left, and right side faces of the glass plate 121 from the upper, lower, left, and right sides. The upper side door end cover 134, the lower side door end cover 133, the left side door end cover 135, and the right side door end cover 137 are fixed to the four side portions of the glass plate 121, and serve as a decorative portion for decorating the four side portions of the glass plate 121. And play the function.

As shown in Fig. 27, the door inner structure 125 constituting the inner panel of the door is attached to the door end cover on the inner side of the glass plate 121, whereby the door 103b is integrally and integrally assembled. A gasket 127, which is a rectangular sealing member that seals the door from the casing, is provided inside the door inner structure 125 and inside the refrigerator compartment 12. Further, a space containing a foaming urethane or the like is filled in a space between the glass plate 121, the door end cover, and the door inner structure 125, thereby improving heat insulating performance and foaming heat insulation. The material is adhered to the inner surface of the glass plate 121 to fix the glass plate 121, thereby fixing the glass plate 121 from falling off or warping. It is also possible to apply a coating on the glass plate 121, and on its back side, a scattering preventing sheet which prevents the glass from being broken after being broken, and a protective structure for preventing the anti-scattering sheet from contacting the urethane. Pieces.

Next, a configuration example of the relationship between the substrate having the capacitance type switch and the door will be described with reference to FIG. 28.

Fig. 28 is a cross-sectional view of a door (doors 21, 22, etc.) having a capacitance type switch (corresponding to switches SA, SB, 51A, 52A, etc.) constituting the control operation portion 50 or the door opening operation portions 51, 52 as described above. Schematic diagram of the section view.

The left door end cover 135 shown in Fig. 28 is a left side decorative portion provided in the vertical direction of the door 103b (the paper surface vertical direction of Fig. 28), and the right side door end cover 137 is a right side decorative portion provided along the vertical direction of the door 103b. . The vertical direction of the door 103b is the Z direction shown in FIG.

As shown in FIG. 28, one end portion (left end portion) 155 of the glass plate 121 is an end portion that is substantially exposed in the state in which the left door end cover 135 is not completely covered, and is exposed from the left door end cover 135. On the other hand, the other end portion (right end portion) 121f of the glass plate 121 is an end portion which is covered by the inner portion 137a so as not to be exposed.

The R surface 156 is formed on the front side portion of the side surface 152 of the one end portion 155 of the glass plate 121, and is not formed in a right angle shape. The R surface 156 is, for example, an R surface of a quarter circumference. For example, the R surface 156 can be formed by cutting a part of the one end portion 155 and grinding it to have an arc, and the R surface 156 is continuously formed in the Z direction.

As shown in FIG. 28, the side surface 152 of the one end portion 155 of the glass plate 121 does not protrude to the outside as compared with the side surface 153 of the left door end cover 135. Thereby, the side surface 152 of the glass plate 121 does not protrude from the side surface 153 of the left door end cover 135, thereby protecting Side 152 of glass plate 121.

As shown in FIG. 28, a substrate insertion portion 154 is provided on the side surface 153 of the left door end cover 135. The board insertion portion 154 is a through hole for inserting the board 110 into the inside of the housing member 105 from the outside of the left door end cover 135. The substrate 110 is mounted with a capacitance type switch 101 and a communication unit 106 that communicates information of the refrigerator to the outside or receives other information from the outside. The housing member 105 is fixed to the inner surface 121M of the glass plate 121 and the inner surface 135M of the left door end cover 135, respectively. The storage member 105 is a member that constitutes a housing portion in which the substrate 110 can be housed. Further, a cover may be provided on the substrate insertion portion 154, and the cover may be closed by a lid to seal the storage portion.

As described above, by providing a metal such as aluminum having good thermal conductivity around the accommodating portion or disposing the metal 65 for reinforcement therein, dew condensation can be prevented.

The substrate 110 is pressed from the side of the housing member 105 to the inner surface 121M of the glass plate 121 by using the elastic member 103 such as a spring, thereby being closely held to the inner surface 121M. The substrate 110 is fixed to a position P1 of the left door end cover 135 different from the support portion P2. Thereby, the substrate 110 having the capacitance type switch 101 can be fixed to the inner surface 121M of the glass plate 121 in close contact with the support portion P2 of the left door end cover 135. Therefore, since the capacitance type switch 101 can be pressed and disposed on the inner surface 121M of the glass plate 121 without a gap, the user can surely perform the switching operation of the capacitance type switch 101 from the surface of the glass plate 121.

Further, as a method of pressing the capacitance type switch 101 to the inner surface 121M of the glass plate 121 without a gap, the elastic member may be provided instead of the elastic member. The guide member that moves the substrate 110 from the rear toward the front is inclined to the storage portion so as to be narrowed toward the insertion direction of the substrate, or the projection provided on the substrate 110 is inserted into the guide portion. The slot is guided to thereby press.

Further, the substrate may be disposed in a support container of the support substrate, and an LED as a light-emitting member may be disposed in the support container, and the LED may be illuminated from the back surface of the substrate.

Further, the capacitance type switch 101 may be integrally formed by arranging electrodes on the surface of the LED substrate disposed on the back surface, or may be provided on another substrate different from the substrate on which the LEDs are disposed. The substrate can be provided with an electrode of a capacitive switch on a flexible film-like transparent film. In this manner, the LED can be disposed on the back surface of the transparent electrode so that light can be emitted from the back side of the electrode.

[27th embodiment]

FIG. 29 is a front view of the refrigerator 1 according to the twenty-seventh embodiment, FIG. 30 is a perspective view showing a state in which the refrigerator 1 is opened, and FIG. 31 is an enlarged perspective view of the refrigerator compartment 12 of the refrigerator 1.

As shown in FIG. 29 and FIG. 30, in the refrigerator 1 of the twenty-seventh embodiment, the refrigerator 11 as the refrigerator main body includes the refrigerator compartment 12, the vegetable compartment 13, the switching compartment 14 which can switch the set temperature in the refrigerator, and the refrigerator. Room 15. Further, an ice making chamber 16 is provided on the left side of the switching chamber 14.

As shown in FIGS. 29 to 31, in order to cover the front surface opening portion of the refrigerating chamber 12, the left and right left and right doors 21 and 22 respectively serve to make the left end portion and the right end portion The hinge portion is attached to the opening and closing manner in a split manner. Pull-out doors 23, 24, 25, 26 are provided in the vegetable compartment 13, the switching compartment 14, the freezing compartment 15, and the ice making compartment 16, respectively.

Each of the left door 21 and the right door 22 has a structure in which a front surface plate 21A, 22A made of colored transparent glass is attached to an opening of a flat inner plate that is open at the front surface, and a vacuum partition is disposed in the inner cavity portion. A hot material and a urethane heat insulating material or a solid heat insulating material are disposed in a hollow portion that is not completely filled with the vacuum heat insulating material. The concentration of the chromaticity of the front surface plates 21A and 22A is such that a filler such as a heat insulating material on the back side of the front surface plates 21A and 22A is not visible from the outside in a state where external light is received. In addition, the concentration of the chromaticity of the front surface plates 21A and 22A is also a 7-segment LED which reflects the change value of the LED display lamp such as the name of the operation display button, the cooling function name, the cooling intensity, and the like, which will be described later. When the display device is turned on, light is permeable and can be seen from the front side.

On the back side of the front surface plate 22A of the right door 22, a capacitance type control operation portion 50 for operating the refrigerator by a touch operation from the surface of the front surface plate 22A is provided. The control operation unit 50 is provided with an infrared light receiving unit for detecting an environmental state around the refrigerator; a return button; detecting a touch on the return button and penetrating the display operation button name, a cooling function name, and cooling An LED display lamp such as intensity; and a 7-segment LED display device that transmits a change value such as a temperature value.

On the back side of the front surface plate 21A of the left door 21 and the lower side of the front surface plate 22A of the right door 22, left and right laterally elongated door opening operation portions 51 and 52 are respectively provided. And, on the surface of the front surface plates 21A, 22A, there is provided a door opening operation The opening and closing operation display portions 51A and 52A of the door opening operation direction are also displayed. Here, the door opening operation display portion 51A of the left door 21 is provided with a leftward arrow mark that recognizes a case where the finger is slid in the left direction in a touched state to perform a door opening operation. On the door opening operation display portion 52A of the right door 22, a rightward arrow mark is provided, and the rightward arrow mark recognizes a case where the finger is slid in the right direction in a touched state to perform a door opening operation.

The door opening drive portions 54, 55 are provided at positions corresponding to the vicinity of the open side end portions of the upper sides of the left door 21 and the right door 22, respectively, at the left and right places near the front end of the top plate surface of the casing 11. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet to push the upper side of the left side door 21 and the right door 22 toward the front side of the open side end portion, thereby automatically opening the doors. Open. When the left door 21 is opened and the finger is slid in the left direction in the state of the arrow mark near the right end or the right end of the left door opening operation display portion 51A, the door opening operation portion 51 senses the continuous touch and touch detection. The signal is sent to the control unit 56. When the control unit 56 determines that the door opening operation command is issued, the door opening drive unit 54 of the left door 21 is operated to automatically open the left door 21. On the other hand, if the finger is slid in the right direction in the state of the arrow mark near the left end or the left end of the right door opening operation display portion 52A in order to open the right door 22, the door opening operation portion 52 senses the continuous touch and touches The detection signal is sent to the control unit 56. When the control unit 56 determines that the door opening operation command is issued, the door opening drive unit 55 of the right door 22 is operated to automatically open the right door 22.

Further, the cooling control by the control unit 56 in the refrigerator according to the twenty-seventh embodiment is not limited to a general cooling control, and is, for example, a compressor and an operation surface. The plate, the anti-condensation heater, the ice making device inside the ice making compartment, the refrigerating compartment fan, the freezing compartment fan, and the defrosting heater are connected to the control unit 56 and are controlled.

The arrow marks on the door opening operation display portions 51A and 52A are not limited to the display, and may be any shape or form of the mark as long as it is easily recognized as a display operation of the door opening operation by touching the page and sliding in the right direction or the left direction. Not limited.

On the left door 21 and the right door 22, handles 61 and 62 are provided in such a manner that the fingers are inserted upward by the lower end portions of the lower side than the door opening operation display portions 51A and 52A, respectively. With the operation of pulling on the front side, the left door 21 and the right door 22 can be manually opened independently.

Next, an automatic door opening operation of the refrigerator in the twenty-seventh embodiment will be described. 32 is a block diagram showing the door opening control of the refrigerator 1. As shown in FIG. 32, in the door opening operation portions 51 and 52, five arrow marks are arranged in the left-right direction of the door opening operation display portions 51A and 52A, respectively, with the front surface plates 21A and 22A interposed therebetween. The capacitive touch sensors 51-1 to 51-5 and the capacitive touch sensors 52-1 to 52-5 are arranged in series. The capacitive touch sensors 51-1~51-5 and the capacitive touch sensors 52-1~52-5 are set to detect the electrostatic capacitance change caused by the user's touch, respectively, and The touch detection signal is sent to the control unit 56.

Therefore, when the user wants to open the right door 22 and causes the finger to touch the arrow mark on the left end in the portion of the door opening operation display portion 52A, and slides the finger in the right direction in the touch state, the capacitive touch sensor 52-1 The sensor detecting the change of electrostatic capacitance in ~52-5 sends the touch detection signal according to the order of touch To the control unit 56. Therefore, the control unit 56 determines whether or not the door opening operation is performed, and if it is determined that the door opening operation is normal, the door opening drive unit 55 of the right door outputs a door opening drive signal to automatically open the right door 22. In the case of the door opening operation of the left door 21, the operation of sliding the left door 21 in the state in which the finger is in the left direction in the state of the arrow mark near the right end or the right end with respect to the door opening operation display portion 51A of the left door 21 is also determined. Open the door.

The logic for opening the door here is as follows. When at least three of the five sensors on the left and right are detected within a predetermined time (for example, 0.5 seconds or 1 second) and in accordance with the arrangement order, it is determined that the door opening operation is performed, so that the corresponding door is automatically turn on. Here, the door opening operation of the right door 22 will be described.

When any one of the arrow marks of the door opening operation display portion 52A of the right door 22 is touched, the corresponding capacitive touch sensor on the side of the door opening operation portion 52 (since the arrow mark near the left end or the left end is usually touched, therefore, this is The sensor 52-1) set to the left end performs touch detection and transmits a touch detection signal to the control unit 56. The control unit 56 starts the determination process of the door opening operation after receiving the signal. As a result, the control unit 56 determines that the door opening drive unit 55 of the right door outputs a door opening drive command for the door opening drive operation of the right door 22, and causes the door opening drive unit 54 to operate to automatically open the right door 22. The same is true for the determination process of the door opening operation of the left door 21. However, in the case of the left door 21, the direction is opposite to that of the right door 22, and it is determined that the door opening operation is performed when the arrow mark near the right end or the right end on the touch opening operation display portion 51A is slid in the left direction.

Next, referring to FIG. 29 to FIG. 31, 2 as a voice recognition component The speech recognition sensors NS1, NS2, the human sensor HS and the illuminance sensor LS are described.

As shown in FIG. 29 and FIG. 30, one voice recognition sensor NS1, a human sensor HS, and an illuminance sensor LS are disposed on the upper surface of the casing 11 of the refrigerator 1. The other speech recognition sensor NS2 is disposed, for example, at a lower portion of the right door 22, spaced apart from one speech recognition sensor NS1. As the speech recognition sensors NS1, NS2, for example, a condenser microphone can be used, but it is not particularly limited.

As shown in FIG. 30 and FIG. 31, the voice recognition sensor NS1 on the upper side is disposed on the upper surface of the casing 11 of the refrigerator 1, and the voice recognition sensor NS2 on the lower side is disposed, for example, in the lower end portion of the right door 22, However, it is not limited thereto, and only one of the two speech recognition sensors NS1, NS2 may be configured.

As the human sensor HS shown in FIG. 31, for example, an infrared sensor can be used. The upper speech recognition sensor NS1, the human sensor HS, and the illuminance sensor LS shown in FIG. 31 are housed in the storage cassettes CS1, CS2, and CS3, respectively. Thereby, the voice recognition sensor NS1, the human sense sensor HS and the illuminance sensor LS can be arranged in an overlapping manner or arranged on the upper surface of the casing 11, so that the sensors can be protected from dust and the like. The storage boxes C1, C2, and C3 are disposed at, for example, the upper surface of the casing 11 between the door opening operation portions 51 and 52. However, the arrangement positions of the respective sensors are not limited thereto.

Furthermore, the sensors may be housed in the casing of the door opening driving portions 54, 55, or may be housed in a hinge for covering a pivot point for opening and closing the door. The inside of the box.

Figure 32 is a block diagram of the door opening control in the refrigerator. The flowchart of Fig. 33 shows a case where the left door 21 and the right door 22 of the refrigerating compartment are automatically opened.

As shown in FIG. 32, the two speech recognition sensors NS1, NS2, the human sensor HS and the illuminance sensor LS are electrically connected to the control unit 56. Thereby, the voice signal when the two voice recognition sensors NS1, NS2 receive the sound can be sent to the control unit 56. The detection signal of the human sensor HS can be sent to the control unit 56. The illuminance signal of the illuminance sensor LS can be sent to the control unit 56.

By setting the two voice recognition sensors NS1, NS2 in this manner, as shown in the flowchart shown in FIG. 33 (to be described later), the user can speak the voice, so that the user does not manually open the refrigerator. The left door 21 and the right door 22, that is, in addition to the user holding the handle (handle) to open the door, can also automatically open the door by detecting different detection (operation) methods such as sound or voice.

Further, as shown in FIG. 32, the control unit 56 is connected to the storage unit 300 and the association input registration unit 305. In the related-input registration unit 305, the user can input and register "the name of the food or the like as the storage item" or the "name of the storage compartment of the left door 21", the "name of the storage compartment of the right door 22", and the "refrigerator 1" The name of the storage part in the refrigerator". For example, "names of foods and the like" are "milk", "eggs", "butter", "juice", "wasabi", "tofu", and the like. The "name of the storage portion in the refrigerator of the refrigerator 1" is, for example, the refrigerator compartment 12, the vegetable compartment 13, the switching compartment 14, the freezing compartment 15, the ice making compartment 16, etc. shown in FIG.

The control unit 56 shown in FIG. 32 stores the related information in the "name of the food compartment or the like in the refrigerator 1" in the memory unit 300. As an example, in the storage unit 300, the user can set (memorize), for example, "milk", "egg", and "cream" in the storage compartment on the left door 21 side, and in the storage compartment 300, the storage compartment on the right door 22 side can be provided. Set (memory) such as "juice", "wasabi", "tofu".

Here, a case where the user automatically opens the left door 21 and the right door 22 by voice will be specifically described with reference to the flowchart of FIG. 33 showing the case where the left door 21 and the right door 22 of the refrigerator compartment are automatically opened.

In the step S11, the user operates the association input registration unit 305 in advance, for example, a keyboard or a touch panel, and inputs and registers, for example, "in association with the storage compartment on the left door 21 side". Milk, eggs, and cream are entered and registered in the storage box on the right side 22 side, for example, "juice", "wasabi", and "tofu". As a result, the control unit 56 shown in FIG. 32 sets (memorizes), for example, "milk", "egg", and "cream" in association with the storage unit on the left door 21 side with respect to the storage unit 300 shown in FIG. In the storage compartment on the right door 22 side, for example, "juice", "wasabi", and "tofu" are provided.

In step S13 of FIG. 33, for example, the user sense sensor HS or the illuminance sensor LS or the like detects the user approaching the refrigerator, whereby the self-sensing sensor HS transmits the detection to the control unit 56. The signal, or the self-illumination sensor LS, transmits an illuminance signal to the control unit 56. Therefore, in the control unit 56, the triggering of the speech recognition function of the control unit 56 is performed by the detection signal or the illuminance signal, that is, at the control unit 56. The timing at which the voice recognition function is played is generated, whereby the voice recognition function of the control unit 56 is started.

In this way, the triggering of the voice recognition function is: when the human sensor H detects the user approaching the refrigerator, when the human sensor 60 gives the detection signal to the control unit 56; or when the illumination is When the sensor LS detects the illumination of the kitchen in which the refrigerator is placed by the user, the illuminance sensor LS gives the illuminance signal to the control unit 56.

Further, in step S14 of FIG. 33, when the user speaks at least one of "milk", "egg", and "cream" by voice, the voice recognition sensors NS1, NS2 shown in FIG. 32 receive the Since the voice is sent to the control unit 56, the control unit 56 performs voice recognition. In the step S15, the control unit 56 outputs a door opening drive command to the door opening drive unit 54 of the left door 21 shown in FIG. 32 in which at least one of "milk", "egg", and "cream" is accommodated. The door opening drive unit 54 operates. Therefore, in step S16, the storage compartment of the left door 21 can be automatically opened by the operation of the door opening drive unit 54.

Similarly, in step S14, when the user speaks at least one of "juice", "wasabi", and "tofu" by voice, the voice recognition sensors NS1, NS2 shown in FIG. 32 receive the voice, and Since the voice signal is sent to the control unit 56, the control unit 56 performs voice recognition. In the step S17, the control unit 56 outputs a door opening drive command to the door opening drive unit 55 of the right door 22 in which at least one of the "juice", "wasabi", and "tofu" is stored, so that the door opening drive unit 54 operates. . Therefore, in step S18, the storage compartment of the right door 22 can also be automatically activated by the action of the door opening drive unit 54. open.

In the storage unit 310, for example, the storage compartment on the side of the left door 21 in which "milk" is placed is registered in advance, so that even if it is a person who does not know the location in the refrigerator in which "milk" is placed, Say "milk" and automatically open the left door 21 side. Therefore, it is not known that the person who has placed the "milk" in the refrigerator does not mistakenly open the right door 22 to which the "milk" is not placed. Therefore, the number of opening and closing of the door is reduced, and the energy saving effect is improved.

Further, when a tank for ice making is disposed in the refrigerator, the user can say, for example, "water storage", and the door on the side where the water storage tank is housed, for example, the left door 21 is opened, so that it is used. The person can hold the water storage tank and store it in a predetermined storage position of the water storage tank in the refrigerator. Thereby, in the case where the user holds the water tank with both hands and cannot lift his or her hands, the left door 21 to be opened to accommodate the water storage tank can be automatically opened even without using the handle 61 shown in FIG.

Further, as for the pull-type doors 23, 24, 25, and 26 shown in Fig. 29, the door opening driving portions are also provided, whereby the door can be automatically opened by voice similarly to the left door 21 and the right door 22.

Thus, unlike the manual operation in which the user grips the handle and manually opens the left door 21, the right door 22, and the pull-out doors 23, 24, 25, 26, the door can be automatically opened, and thus, for example, the user takes both hands It is very convenient in the case of food, etc.

Moreover, when the voices of the different doors are simultaneously recognized, the opening timings of the different doors may be opened and staggered to prevent the door from colliding with the user.

Further, in step S13 shown in FIG. 33, the control unit 56 is given An example of a trigger for initiating speech recognition may be a speech signal from the speech recognition sensors NS1, NS2 obtained by recognizing words (words) spoken by the user by the speech recognition sensors NS1, NS2. As a predetermined word (word) spoken by the user, for example, "the sesame is quickly opened" or the like can be used. That is, as a preferred example for giving the control unit 56 a trigger for starting speech recognition, it is preferable that, for example, "the sesame is opened" and the "sesame open door" is not used in the normal conversation. Word.

In other words, when the example in which the trigger for starting the speech recognition is given to the control unit 56 is a human voice, it is preferable to prevent the control unit 56 from starting the speech recognition operation due to the word used in the normal conversation content. It is to use words that do not appear in the usual conversation. Thereby, it is possible to prevent the control unit 56 from erroneously starting the voice recognition operation. The voice given to the control unit 56 for triggering the voice recognition can be set to an abnormal sound generated by the refrigerator, a sound such as a compressor, an alarm sound when the door is liberated, and an opening and closing sound of the door. A sound that is different from the sound of a vacuum cleaner used in a house or music that is transmitted inside a house. Further, when the recognized sound is set to be a voice other than a human voice, if it is set to recognize that the hand is photographed a plurality of times (for example, two times), since it is different from the sound generated from the refrigerator, it does not cause erroneous opening and closing.

Next, an arrangement example of the voice recognition sensor NS2 disposed in the lower portion of the right door 22 shown in FIG. 30 will be described with reference to FIG. FIG. 34 is a schematic view of a cross section of, for example, the right door 22.

As shown in FIG. 34, the voice recognition sensor NS2 is, for example, a capacitive microphone. The wind is disposed at the lower portion of the right door 22. The voice recognition sensor NS2 is disposed in the housing member 105. The housing member 105 is fixed to the inner surface 121M of the glass plate 121 and the inner surface 135M of the left door end cover 135, respectively. The storage member 105 is a member that constitutes a housing portion in which the substrate 110 can be housed. The hole portion 154 is provided, for example, at a lower portion of the left door end cover 135 of the right door 22. The voice or the like emitted by the user passes through the hole portion 154 to reach the voice recognition sensor NS2. The hole portion 154 may be a single hole or a plurality of holes. Thereby, the voice recognition sensor NS2 can be configured to be built in the lower portion of the right door 22, and the external voice or the like can be surely picked up through the hole portion 154. Furthermore, the voice recognition sensor NS2 may be mounted on the substrate 110, or may have a cover covering the hole 154 and a small hole may be formed in the cover.

Further, as shown in FIG. 32, the control unit 56 is connected to the light-emitting unit 330, the sound generation unit 340, and the voice generation unit 350. The light emitting unit 330, the sound generating unit 340, and the voice generating unit 350 are notification means for informing the user that the door is opened when the door is opened based on the sound (speech) detected by the voice recognition sensors NS1, NS2. To warn.

The light emitting unit 330 is, for example, an LED light emitting unit, and the sound generating unit 340 is, for example, a buzzer. The voice generating unit 350 is, for example, a speaker. As described above, at least one of the voice recognition sensors NS1, NS2 shown in FIG. 32 detects the voice of the user, and when the control portion 56 issues an instruction to open the left door 21 or the right door 22, for example, the control portion 56 may The light-emitting unit 330 shown in FIG. 32 is caused to emit light in "red", for example, or the sound generation unit 340 generates an alarm sound, or the voice generation unit 350 notifies the warning content such as "the door is to be opened" by voice. Make User. Thereby, at least one of light, sound, and voice can be used to inform the user that the door is to be opened, thereby preventing the user from accidentally hitting the door.

Further, as shown in FIG. 32, the human sensor 24 is connected to the control unit 56. When detecting that the user approaches the refrigerator, the human sensor HS sends a detection signal to the control unit 56 to notify the detected person. As described above, when the control unit 56 detects that the user approaches the refrigerator, the control unit 56 shown in FIG. 32 can inquire via the voice generating unit 350 via voice guidance to ask the user whether or not to open the door. At this time, if the user answers, for example, "Yes", the voice recognition sensors NS1, NS2 recognize the "Yes" and notify the control unit 56 of the voice signal. Thereby, the control unit 56 outputs a door opening drive command to the door opening drive unit 55 of the right door 22, for example, whereby the right door 22 can be opened. Similarly, the control unit 56 outputs a door opening drive command to the door opening drive unit 54 of the left door 21, for example, whereby the left door 21 can be opened.

Further, the left door 21 and the right door 22 can respectively have different opening speeds. The left door 21 and the right door 22 are normally set to be slower by the driving of the door opening driving portions 54, 55, thereby preventing the door from being rapidly opened.

Further, as shown in FIG. 35, a height measuring sensor 410 is connected to the control unit 56. The height measuring sensor 410 can measure the approximate height of the user using, for example, a photosensor such as a photocoupler. For example, the height measurement sensor 410 may determine whether the height value of the user is the value of the left door 21 and the right door 22 on the upper side, or the values of the left door 21 and the right door 22 on the upper side. Thereby, the control unit 56 can make the left door 21 and the right side of the upper stage side based on the height value of the user measured by the height measuring sensor 410. The opening speed of the door 22 is different.

For example, when the height value of the user measured by the height measurement sensor 410 is the value of the left door 21 and the right door 22 on the upper side, the control unit 56 causes the operation of the door opening drive units 54, 55 to be slower, and the door opening drive unit is opened. 54 and 55 open the left door 21 and the right door 22 on the upper side at a slower speed than the normal opening speed, respectively.

Thereby, the left door 21 and the right door 22 can be prevented from hitting the head or body of the user. Further, when the height value of the user measured by the height measuring sensor 410 is not the value of the left door 21 and the right door 22 on the upper side, the door opening driving units 54, 55 cause the left door 21 and the right door 22 on the upper side, respectively. Open at the usual opening speed.

When the control unit 56 shown in FIG. 32 or FIG. 35 uses the voice generating unit 350 to notify the user of, for example, the warning content of "will open the right door", when the user wants to confirm the warning content again, the following manner can be obtained. Come on. When the user speaks the repeated reminder content such as "again" or "repetition", the voice recognition sensors NS1, NS2 send the voice signal of the repeated reminder content such as "again" or "repetition" to the control. Part 56. The control unit 56 uses the voice generating unit 350 to notify the user of the warning content "to open the right door" at least once again based on the voice signals from the voice recognition sensors NS1, NS2. Thereby, even if the user fails to hear the warning content issued on the refrigerator side, it can be easily confirmed again.

Further, when the user opens the right door 22 of the upper refrigerating compartment to inspect the inside of the refrigerator, the control unit 56 does not accept an operation of automatically opening the left door 21, for example, as another door. Thereby, it is possible to prevent a situation in which when the user opens the right door 22 to inspect the refrigerator, and the user mutters, for example, "The milk must be taken out", The left door 21 on the side with "milk" is automatically opened by mistake, so that the left door 21 can be surely prevented from hitting the user's face, for example.

In the same way, when the user opens the right door 22 of the upper refrigerating compartment to access the refrigerator, for example, when the other door is muttered, "the vegetable must be taken out", the vegetable compartment with "vegetables" is placed. The door is automatically opened and hits the user's lower abdomen or knee.

Further, in addition to invalidating the acceptance as described above, it is also possible to set the opening speed of the other door to be slower than the normal speed when a certain door is opened.

In addition, when the voice recognition cannot be well recognized when an abnormal sound (compressor sound or buzzer sound) is emitted from the refrigerator, the user's instruction voice such as "please say it again" can be played from the speaker.

As shown in FIG. 35, the proximity sensor 400 is connected to the control unit 56. The proximity sensor 400 is disposed, for example, in the left door 21 and the right door 22, and when the user's hand approaches the left door 21 or the right door 22, the door opening operation portions 51, 52 or the control operation portion 50 as the touch switches use, for example, LED lamps. Wait to shine. Thereby, even if the portion where the refrigerator is placed is dark, the user can confirm the position of the door opening operation portions 51, 52 or the control operation portion 50 by visual inspection.

Further, the function of the proximity sensor and the functions of the door opening operation portions 51 and 52 can be combined. At this time, it is not necessary to separately provide the proximity sensor 400 as shown in FIG.

FIG. 36 is a flowchart showing an operation example of the door opening operation unit including the function of the proximity sensor. At this time, as illustrated in FIG. 36, in step S21, the control unit 56 of FIG. 35 increases the opening of the double-sensing sensor by software. The sensitivity of the electrostatic switches of the operation units 51 and 52 is maintained, thereby maintaining the function as a proximity sensor.

Further, in step S22 of FIG. 36, when the door opening operation portions 51, 52 which also serve as proximity sensors detect that the user's finger is approaching, in step S23, the proximity sensor is doubled in accordance with the instruction of the control portion 56. The door opening operation portions 51 and 52 emit light, and the sensitivity of the door opening operation portions 51 and 52 which also serve as proximity sensors is lowered to the initial state, whereby the door opening operation portions 51 and 52 which also serve as proximity sensors are only used as the door opening operation portion. And play the function. This is because if the sensitivity of the door opening operation portions 51 and 52 which also serve as the proximity sensor is not lowered, the sensing is performed before the touch input of the door opening operation portions 51 and 52 which also serve as the proximity sensor, and thus the measurement is impossible. The correct input.

When the door opening operation portions 51 and 52 that also serve as proximity sensors sense the approach of the user's fingers, the door opening operation portions 51 and 52 that also serve as proximity sensors emit light, thereby allowing the user to clearly know that the approach is also close. The position of the door opening operation portions 51, 52 of the sensor is notified, and the user can be informed that the door opening operation portions 51, 52, which also serve as proximity sensors, can be used for input. There is no need to set up a proximity sensor, so the number of parts can be reduced.

On the contrary, before the door opening operation portions 51, 52 which also serve as proximity sensors emit light, the control portion 56 makes it impossible to perform input using the door opening operation portions 51, 52 which also serve as proximity sensors, thereby preventing the user from intending to perform the operation. The input is made, and the user's finger touches an erroneous input that doubles as the door opening operation portions 51 and 52 of the proximity sensor.

[28th embodiment]

Fig. 37 is a front elevational view of the refrigerator 1 of the twenty-eighth embodiment. Figure 38 is the A perspective view of the door opening state of the refrigerator 1. Fig. 39 is an enlarged perspective view showing a portion of the refrigerator compartment of the refrigerator 1.

As shown in FIG. 37 and FIG. 38, the refrigerator 1 of the 28th embodiment is provided with the casing 11 as a refrigerator main body. The casing 11 includes a refrigerating compartment 12, a vegetable compartment 13, a switching chamber 14 that can switch the set temperature in the refrigerator, and a freezing compartment 15 from the upper stage. Further, an ice making chamber 16 is provided on the left side of the switching chamber 14.

As shown in FIG. 37 to FIG. 39, in order to cover the front surface opening portion of the refrigerating chamber 12, the left and right pair of left and right doors 21 and 22 are attached so that the upper and lower ends of the left end portion and the right end portion are opened and closed by the hinge portion. .

Further, pull-out doors 23, 24, 25, and 26 are provided in the vegetable compartment 13, the switching compartment 14, the freezing compartment 15, and the ice making compartment 16, respectively.

Further, on the back surface of the vegetable compartment 13, although not shown, a refrigerating evaporator for cooling the refrigerating compartment 12 and the vegetable compartment 13 is provided, and on the back surface of the switching compartment 14 and the freezing compartment 15, Although not shown, a refrigerating evaporator for cooling the switching chamber 14, the freezing compartment 15, and the ice making compartment 16 is disposed.

Further, as shown in FIGS. 37 and 38, a control unit 56 is provided on the back surface of the vegetable compartment 13, and the control unit 56 includes a microcomputer for controlling the refrigerator 1.

As shown in FIG. 37, both the left door 21 and the right door 22 have a structure in which a front surface plate 21A, 22A made of colored transparent glass is attached to an opening of a flat inner plate that is open at the front surface, and is hollow inside. A vacuum heat insulating material is disposed in the portion, and a urethane heat insulating material or a solid heat insulating material is disposed in a hollow portion that is not completely filled with the vacuum heat insulating material.

The concentration of the chromaticity of the front surface plates 21A and 22A made of glass is such that a filler such as a heat insulating material on the back side of the front surface plates 21A and 22A is not visible from the outside in the state of receiving external light. Further, the concentration of the chromaticity of the glass front surface plates 21A and 22A is also such as an LED display lamp that penetrates and displays an operation button name, a cooling function name, a cooling intensity, and the like in the control operation unit 50, and a penetration display temperature. When the 7-segment LED display device of the value changes, the light can be penetrated and can be seen from the front side.

As shown in FIG. 38, a rotating partition 31 is provided at a right end portion of the left door 21, that is, a portion on the open side that is close to the left end portion of the right door 22 in the closed state, and the rotating partition 31 is used in the closed state. The state of sealing with the left end portion of the right door 22, that is, the portion on the open side is maintained. An anti-condensation heater for preventing dew condensation is built in the inside of the rotary separator 31.

On the back side of the front surface plate 22A of the right door 22, a capacitance type control operation portion 50 for operating the refrigerator by a touch operation from the surface of the front surface plate 22A is provided. The control operation unit 50 is provided with an infrared light receiving unit for detecting an environmental state around the refrigerator; a return button; detecting a touch on the return button and penetrating the display operation button name, a cooling function name, and cooling An LED display lamp such as intensity; and a 7-segment LED display device that transmits a change value such as a temperature value. The control operation unit 50 is disposed, for example, in the right door 22 in order to perform an operation of changing the cooling control content of the refrigerator 1. The return button of the control operation unit 50 is a menu button as described below, that is, by the user (user) touching with a finger, the control unit 56 of the refrigerator 1 can be instructed for various operations.

As shown in FIG. 37, on the back side of the front surface plate 21A of the left door 21 and the lower side of the front surface plate 22A of the right door 22, elongated door opening operation portions 51, 52 are provided in the lateral direction. The door opening operating portions 51, 52 are also referred to as door open buttons. On the surfaces of the front surface plates 21A and 22A, door opening operation display portions 51B and 52B for displaying the door opening operation direction are provided. A leftward arrow mark is provided on the door opening operation display portion 51B of the left door 21, and the leftward arrow mark recognizes a case where the user slides the finger in the left direction in a state of being touched to perform a door opening operation. On the door opening operation display portion 52B of the right door 22, a rightward arrow mark is provided, and the rightward arrow mark recognizes a case where the user slides the finger in the right direction in a touched state to perform a door opening operation.

As shown in FIGS. 37 and 38, the door opening driving portions 54, 55 are respectively provided at positions on the left and right sides near the front end of the top plate surface of the casing 11, that is, near the open side ends of the upper sides of the left door 21 and the right door 22. Corresponding location.

The door opening drive units 54, 55 push the plungers 54B and 55B forward by the electromagnet to push the upper side of the left door 21 and the open side end of the right door 22 forward, thereby allowing the left door 21 and the right door. 22 are automatically opened separately. If the finger is slid in the left direction in the state of the arrow mark near the right end or the right end of the left door opening operation display portion 51B in order to open the left door 21, the door opening operation portion 51 senses the continuous touch and sends the touch detection signal. Go to the control unit 56. When the control unit 56 determines that the door opening operation command is issued, the door opening drive unit 54 of the left door 21 is operated to automatically open the left door 21.

Similarly, if the finger is opened in the right door in order to open the right door 22 When the left end or the left end of the display unit 52B is slid in the right direction, the door opening operation unit 52 senses the continuous touch and sends the touch detection signal to the control unit 56. When the control unit 56 determines that the door opening operation command is made, the door opening drive unit 55 of the right door 22 is operated to automatically open the right door 22.

As shown in FIG. 37, the control operation unit 50 for performing the operation of changing the cooling control content of the refrigerator 1 is provided, for example, to the right door 12, and the user controls the cooling operation content of the refrigerator 1 by operating the control operation unit 50.

In the right door 12, the door opening operation portion 52 is disposed below the control operation portion 50, and the door opening operation portion 52 is disposed at a position shifted in the left-right direction with respect to the control operation portion 50, and is not disposed directly under the control operation portion 50. position. In other words, in the right door 22, the door opening operation portion 52 is disposed at a position below the control operation portion 50 having the menu button, but the position of the door opening operation portion 52 with respect to the control operation portion 50 having the menu button is along the arrow QR direction. In the right direction, they are arranged at different positions in a staggered manner.

Thereby, when the user touches the menu button of the control operation unit 50 with a finger, even if the user's finger is wet with water and the water drops from the finger, the water dripping from the finger does not adhere to The door operating unit 52 is opened. Therefore, the electrostatic touch type door opening operation portion 52 does not react due to the water dripping from the finger, and the malfunction described below can be prevented, that is, although the user does not touch with the finger, the door opening operation portion 52 reacts arbitrarily. The control unit 56 causes the door opening drive unit 55 of the right door 22 to operate. Therefore, it is possible to surely prevent the door 22 from being automatically opened at will.

Moreover, by pressing the menu button (menu key) of the control operation unit 50, Other operation buttons in the control operation unit 50 are sometimes illuminated and the operation of the operation button becomes effective. Even in this case, since the door opening operation portion 52 (opening switch) is located at a different portion (shifted position) with respect to the control operation portion 50, even if the user touches the light in the control operation portion 50 with a finger, the operation becomes The other operation buttons that are effective, the water dripping from the finger does not adhere to the door opening operation portion 52. Therefore, it is possible to surely prevent the door 22 from being automatically opened at will.

Further, the door opening operation unit 52 and the menu button (menu key) of the control operation unit 50 are printed on the glass front panel 22A, and the components other than the menu button of the operation unit 50 are controlled. When the LED is illuminated, the right door 22 of the refrigerator 1 will have a neat appearance.

Further, the cooling control by the control unit 56 in the refrigerator according to the twenty-eighth embodiment is not limited to a general cooling control, and is, for example, a compressor, an operation panel, an anti-condensation heater, and an ice making device inside the ice making chamber. The refrigerator compartment fan, the freezer compartment fan, and the defrosting heater are connected to the control unit 56 and are controlled.

The arrow marks on the door opening operation display portions 51B and 52B shown in FIG. 37 and FIG. 39 are not limited to the display, and can be easily recognized as the display of the door opening operation if the door is touched and slid in the right direction or the left direction. , the shape or shape of the mark is not limited.

As shown in FIG. 37, handles 61 and 62 are provided on the left door 21 and the right door 22. The handles 61, 62 are provided on the lower end portion of the lower side of the door opening operation display portions 51B, 52B, and the left door can be manually opened independently by inserting a finger into the handles 61, 62 with the palm facing upward and pulling toward the front side. 21. Right door 22.

Next, an automatic door opening operation in the refrigerator of the twenty-eighth embodiment will be described.

40 is a block diagram of the door opening control in the refrigerator 1. As shown in FIG. 40, the door opening operation portions 51 and 52 have door opening operation display portions 51B and 52B, respectively. The door opening operation display portions 51B and 52B have five arrow marks arranged in the right and left lateral directions. Capacitive touch sensors 51-1 to 51-5 and capacitive touch sensors 52-1 to 52-5 are arranged on the door opening operation display portions 51B and 52B, respectively. The capacitive touch sensors 51-1~51-5 and the capacitive touch sensors 52-1~52-5 are set to detect the electrostatic capacitance change caused by the user's touch, respectively, and The touch detection signal is sent to the control unit 56.

Therefore, when the user wants to open the right door 22 and causes the finger to touch the arrow mark on the left end in the portion of the door opening operation display portion 52B, and slides the finger in the right direction in the touch state, the capacitive touch sensor 52-1 The sensor detecting the change in electrostatic capacitance in ~52-5 transmits the touch detection signal to the control unit 56 in accordance with the order of the touch. Therefore, the control unit 56 determines whether or not the door opening operation is performed, and if it is determined that the door opening operation is normal, the door opening drive unit 55 of the right door outputs a door opening drive signal to automatically open the right door 22. In the case of the door opening operation of the left door 21, the control unit 56 also judges the operation of sliding the finger to the left direction in the state of the arrow mark in the vicinity of the right end or the right end with respect to the door opening operation display portion 51B of the left door 21. The door opening operation of the left door 21.

41(a) to 41(d) show an example in which the door opening operation portion 51 of the left door 21 and the door opening operation portion 52 of the right door 22 shown in Figs. 37 to 39 are used as It functions as a human body detecting component that detects the human body of the user of the refrigerator 1.

The door opening operation unit 51 and the door opening operation unit 52 send the human body detection signal to the control unit 56 after detecting the human body of the user. Thereby, the control unit 56 sets the input of the operation signal from the door opening operation unit 51 to be effective to perform the door opening control of the corresponding left door 21, and sets the input of the operation signal from the door opening operation unit 52 to be effective. The door opening control of the right door 22.

For example, when the door opening operation unit 52 as the human body detecting member is taken as an example, the control unit 56 opens the display of the door opening operation unit 52 after detecting the human body of the user by the door opening operation unit 52. The control unit 56 can switch the display of the door opening operation portion 52 by the lighting according to the manner of the door opening operation of the right door 22.

The door opening operation portion 52 as the human body detecting member is an electrostatic switch as described above, and when the electrostatic switch detects the user's human body, the control portion 56 can switch the sensitivity of the electrostatic switch to a high level. The door opening operation portion 52 as a human body detecting member is a proximity sensor that detects the approach of the human body, and the control portion 56 switches the sensitivity of the door opening operation portion 52 as the proximity sensor so that the door opening operation portion 52 serves as a contact feeling. The detector functions, and the door opening operation of the right door 22 is made effective, and when the user touches the door opening operation portion 52 as the contact sensor with the finger, the control portion 56 actually performs the door opening operation of the right door 22.

Hereinafter, while referring to the examples of FIGS. 41(a) to 41(d), the case where the sensitivity of the door opening operation portion 52 is switched as described above and the door opening operation portion 52 is caused by the proximity sensor will be described more specifically. Functions as a contact sensor.

In Fig. 41 (a), the control unit 56 performs a door opening operation as an electrostatic switch. The function unit 52 functions as a "proximity sensor", and the control unit 56 sets the sensitivity of the door opening operation unit 52 to "large", whereby the function as the "proximity sensor" is "valid". Therefore, the control unit 56 sets the opening function (opening operation) of the right door 22, which is the original function of the door opening operation unit 52, to "invalid". Further, the control unit 56 causes the lighting display of the door opening operation unit 52 to be in a closed state as indicated by a broken line.

Next, in FIG. 41(b), when the user brings the finger HT close to the door opening operation portion 52 as the "proximity sensor", the door opening operation portion 52 is activated as a "proximity sensor" to detect the approach of the hand. . When the door opening operation unit 52 detects the approach of the hand, the control unit 56 switches the sensitivity of the door opening operation unit 52 as the "proximity sensor" from "large" to "small". Therefore, the control unit 56 functions as a "contact sensor" which is the original function of the door opening operation unit 52. Therefore, the opening operation (opening operation) of the right door 22 caused by the finger HT touching the door opening operation portion 52 becomes " effective". Further, the control unit 56 causes the lighting display of the door opening operation unit 52 to be changed from the closed state to the open state as indicated by a solid line, and the door opening operation portion 52 is turned on, for example, by an LED.

Next, in FIG. 41(c), when the user directly touches (touches) the finger HT as the door opening operation portion 52 of the "contact sensor", the control unit 56 maintains the "contact sensor" of the door opening operation portion 52. The sensitivity is the "small" state, so that it still functions as a "contact sensor." Further, the control unit 56 causes the original function of the door opening operation unit 52, that is, the opening (opening operation) of the right door 22 to be "valid". Further, the control unit 56 causes the lighting display of the door opening operation unit 52 to be in an open state as indicated by a solid line, and turns on the door opening operation unit 52 by, for example, an LED.

Then, in the case of the control unit 56, the control unit 56 recognizes that the user's finger HT has started to move away from the state of the door opening operation portion 52 that functions as a "contact sensor (touch sensor) by direct contact (touch). The control unit 56 activates the input of the operation signal from the door opening operation unit 52 to operate the door opening drive unit 55, thereby performing the door opening control of the corresponding right door 22. Thereby, the right door 22 can be automatically opened.

Thereby, in a state where it is difficult for the user to directly contact (touch) the middle of the operation of the door opening operation unit 52, for example, in a state where the user wants to approach the refrigerator 1, the control unit 56 can determine the validity/invalidity of the direct contact (touch) to prevent the door opening. Incorrect detection of the indication.

Further, the lighting display of the door opening operation portion 52 can be set to an open state as indicated by a solid line, for example, the door opening operation portion 52 is illuminated by an LED, so that the user can, for example, increase the door opening operation portion 52 by means of the LED. The visibility of the door opening operation portion 52 displayed by the lamp.

Further, when the control unit 56 recognizes that the user's finger HT has started to move away from the state of the door opening operation portion 52 that functions as a "contact sensor (touch sensor) by direct contact (touch), the control portion 56 will come from the door opening. The input of the operation signal of the operation unit 52 is made effective to perform the door opening control of the corresponding right door 22. Thereby, after the user's hand leaves the door opening operation portion 52 of the right door 22, the right door 22 is actually opened, so that the user can be prevented from stabbing the finger due to the opening operation of the right door 22.

As a method of realizing the lighting display in the door opening operation portions 51 and 52, for example, electrostatic capacitance type touch sensors (electrodes) 51-1 to 51-5 as shown in FIG. 40 can be disposed, and capacitive touch sensing can be performed. The gap between the electrodes (electrodes) 52-1~52-5 is forward A light-emitting element such as an LED (light-emitting diode) to be displayed may be used. Further, in the capacitive touch sensors (electrodes) 51-1 to 51-5 and the capacitive touch sensors (electrodes) 52-1 to 52-5, a portion such as a character or a mark can be formed to emit light. The light of the element is directed forward from the back side of the electrode by the removed portion. Alternatively, the light of the light-emitting element may be illuminated from the back side of the electrode to the front using a light guide plate.

The opening operation of the left door 21 using the door opening operation portion 51 disposed in the left door 21 in Fig. 37 can be performed in the same manner as the opening operation of the right door 22 described in Figs. 41(a) to 41(d).

The color of the lighting display in the left and right door opening operation portions 51 and 52 may be the same color or different colors in the left and right door opening operation portions 51 and 52.

The display may be performed in such a manner that when the left door 21 or the right door 22 is slowly opened and the quick opening is opened, the colors of the lighting display in the left and right door opening operation portions 51, 52 are different.

When only one of the left door 21 and the right door 22 is opened simultaneously with the left door 21 and the right door 22, the color of the lighting display in the left and right door opening operation portions 51, 52 can be changed. In particular, in the case where the following specifications are adopted, that is, when the user operates only one of the door opening operation portions 51, 52 to open both the left door 21 and the right door 22, it is also one of only the left door 21 and the right door 22 The case of opening is different, and can be set to a different display color.

In this case, when the sensitivity of the door opening operation units 51 and 52 is set to “large” and the door opening operation units 51 and 52 function as the “proximity sensor”, when the human body is detected to be close to the predetermined time or more, Only the left door 21 and the right door 22 can be made One is turned on, and the specification can be changed so that the left door 21 and the right door 22 are simultaneously opened. Further, while the specification is changed to the simultaneous opening of the left door 21 and the right door 22, the door opening operation portions 51, 52 are illuminated or the colors of the door opening operation portions 51, 52 are different. The lighting method of the door opening operation portions 51 and 52 such as the blinking display of the door opening operation portions 51 and 52 can be arbitrarily changed.

In the refrigerator 1 of the 28th embodiment, it is possible to prevent erroneous detection in the middle of the user's (user) touch operation, and it is possible to avoid malfunction of the door opening.

[29th embodiment]

Fig. 42 is a front elevational view showing the refrigerator 1 of the twenty-ninth embodiment. Fig. 43 is a block diagram showing the door opening control of the human body detecting member including the refrigerator 1 shown in Fig. 42.

The human body detecting unit 500 has, for example, a remote detecting sensor 100 and a door opening operation portion 52 that also functions as a proximity sensor. The remote detection sensor 100 and the door opening operation portion 52 that also functions as a proximity sensor are disposed, for example, in the right door 22. The remote detection sensor 100 is located at an upper portion of the door opening operation portion 52 that also functions as a proximity sensor.

The remote detection sensor 100 is, for example, an infrared sensor for detecting a human body when the user's human body is located away from the refrigerator 1 . On the other hand, the door opening operation portion 52, which also functions as a proximity sensor, is an electrostatic detection sensor that detects the human body when the user's human body approaches the refrigerator 1.

As shown in FIG. 43, the remote detecting sensor 100 is connected to the control unit with a door opening operation portion 52 that also functions as a proximity sensor (electrostatic detecting sensor). 56. The switching unit 104 is preferably connected to the control unit 56. By the user operating the switching component 104, the switching component 104 transmits a selection signal to the control unit 56. Thus, in order to detect the human body, the user can select the remote sensing sensor 100 and also as the proximity sensor (electrostatic The detection sensor is configured to detect the human body by any one of the function opening operation portions 52.

Further, as shown in FIG. 43, the door opening operation portion 52 functioning as a proximity sensor is an electrostatic detection sensor, but may be provided with a sensitivity adjustment unit 199 that senses the static electricity detection. The sensitivity of the device is arbitrarily changed. The sensitivity adjustment unit 199 is connected to the control unit 56, and the user operates the sensitivity adjustment unit 199 to send the sensitivity adjustment signal to the control unit 56. Thereby, the control unit 56 can adjust the sensitivity of the door opening operation portion 52 as the electrostatic detecting sensor between "large" and "small".

As a method of changing the sensitivity of the door opening operation portion 52 as the electrostatic detecting sensor, the electrostatic detecting sensor has, for example, charging and discharging that repeatedly performs electrostatic capacitance (condenser capacity) for several times in one second. Cycle. Further, the capacity of the capacitor is changed by the door opening operation portion 52 which is a user's finger approaching or contacting as an electrostatic detecting sensor. Thereby, when the user brings the finger close to or touches the door opening operation portion 52, the cycle of charge and discharge changes. The control unit 56 checks the degree of change in the charge/discharge cycle and sets a threshold value in advance, whereby the control unit 56 can determine whether the user is approaching the finger or touching the door opening operation based on the threshold value. Part 52.

Moreover, when the user detects that the user has left the door opening operation portion 52, In other cases, the control unit 56 may determine that the cycle of charge and discharge has returned from normal to normal.

As described above, the user can change the sensitivity of the door opening operation portion 52 as the electrostatic detecting sensor. If the refrigerator 1 is placed on the back side of, for example, a sink of a kitchen, when the user is located near the sink, the remote detecting sensor 100 will always detect the human body. In such a case, by the user operating the switching unit 104, the selection signal is sent from the switching unit 104 to the control unit 56, so that the door opening operation unit 52, which also functions as a proximity sensor, can be selected instead of the remote detection. The sensor 100 serves as a detecting component of the human body. Thereby, when the user is only located near the sink, the door opening operation portion 52 does not detect the human body. Further, the door opening operation portion 52 can detect the human body only when the user's finger approaches the door opening operation portion 52 functioning as the proximity detecting sensor of the refrigerator 1. Thereby, it is possible to prevent erroneous detection in the case where the user is relatively far from the refrigerator 1.

Since the remote detecting sensor 100 is used, as the printing coloring of the back surface of the front surface plate 22A of the glass shown in Fig. 42, it is preferable to use a printing for transmitting infrared rays or for passing the infrared rays to the back surface of the front surface plate 22A of the glass. The part is not printed.

In the refrigerator 1 of the 29th embodiment, it is possible to prevent erroneous detection in the middle of the user's (user) touch operation, and it is possible to avoid malfunction of the door opening.

Further, in the casing disposed in the top plate of the refrigerator 1, there is a voice recognition member having a hole for transmitting voice on the casing. The casing of the control substrate is disposed in the same manner as or equal to the height of the casing of the solenoid. control The substrate is placed at a portion recessed behind the top wall, and the support portion of the substrate is buried in the urethane. The solenoid is also embedded in the urethane. The vacuum heat insulating material is bent to arrange the embedded parts separately, and the vacuum heat insulating material is disposed so as to cover the lower side of the solenoid and the lower side of the substrate, and is bent to cover the entire body. Moreover, the ceiling illumination is embedded in the recess of the urethane of the top plate. The vacuum insulation material is disposed apart from the ceiling illumination.

The vacuum insulation material is disposed in contact with the inner wall of the top plate, and the LED is disposed outside the top wall. Further, the LED is disposed at a portion of the bent portion of the inner wall.

The vacuum heat insulating material is divided and disposed to overlap the solenoid and the substrate. The LED is separated from the vacuum insulation material, and the vacuum insulation material under the substrate contacts the inner wall.

The LED is embedded in the inclined portion obliquely to the bent portion of the top wall so as not to be in contact with the vacuum heat insulating material.

Fig. 44 is a cross-sectional view showing the upper portion of the refrigerator 1 having the above configuration in the front-rear direction.

As shown in FIG. 44, a case 700 is disposed on the top plate portion 11A of the casing (body) 11. On the rear portion 11B of the top plate portion 11A, a concave portion 11C is provided, and the casing 700 is disposed in the concave portion 11C. The casing 700 has, for example, a rectangular parallelepiped shape, and the control substrate 710 is disposed obliquely in the internal space of the casing 700. The control substrate 710 is disposed obliquely so that the front side of the control substrate 710 is located on the rear side. A voice recognition member 720 is mounted on the front side of the control board 710.

As the voice recognition unit 720, for example, a microphone. The front side portion of the casing 700 has a hole 700H for the voice to propagate to the voice recognition portion. Item 720. Thereby, although the voice recognition component 720 is disposed in the casing 700, for example, the voice emitted by the user can be surely transmitted to the voice recognition component 720 via the hole 700H of the casing 700, thereby recognizing the voice of the user or sound.

As shown in Fig. 44, on the front side of the top plate portion 11A, a door opening drive portion 54 (55) is provided. The door opening drive unit 54 (55) is preferably a solenoid, and the door opening drive unit 54 (55) has a casing 762 and a rod 761 that is expandable and contractible. The lever 761 is extended by the driving of the door opening driving portion 54 (55), so that the door opening driving portion 54 (55) pushes the inside of the left door 21 (or the right door 22) to open it.

The height of the casing 700 is the same as the height of the casing 762 of the door opening driving portion 54 (55), or the height of the casing 700 is lower than the height of the casing 762 of the door opening driving portion 54 (55) by a difference DF. Thereby, even if the case 700 is disposed in the top plate portion 11A, the case 762 whose full height of the refrigerator is larger than the door opening drive portion 54 (55) can be avoided.

As shown in FIG. 44, the control board 710 has a plurality of support portions 711, and is embedded and supported in a heat insulating material 730 such as urethane in an inclined state by using the support portion 711. Thereby, the control substrate 710 is supported by the heat insulating material 730 so as not to move. Further, the door opening drive unit 54 (55) has a plurality of support portions 763, and is embedded and supported by the heat insulating material 730 using the support portion 763. Thereby, the door opening drive unit 54 (55) is supported by the heat insulating material 730 so as not to move.

As shown in FIG. 44, a heat insulating material 730 such as urethane and a vacuum heat insulating material 740 are superposed on the inner side of the top plate portion 11A. The vacuum heat insulating material 740 is located below the heat insulating material 730, and a portion of the vacuum heat insulating material 740 is bent at a substantially right angle. In this way, the middle portion of the vacuum heat insulating material 740 is bent at a substantially right angle and arranged. Therefore, the vacuum heat insulating material 740 can be disposed so as to cover the lower side portion of the door opening driving portion 54 (55) and the lower side portion of the control substrate 710, and the vacuum heat insulating material 740 is self-opening the driving portion 54 (55). The support portion 763 is spaced apart from the support portion 711 of the control substrate 710.

The ceiling illumination 750 of the refrigerator 1 shown in FIG. 44 has, for example, an LED (Light Emitting Diode) lamp, and is embedded in a concave portion 733 of a heat insulating material 730 such as urethane disposed in the top plate. Therefore, the ceiling illumination 750 does not protrude from the inner wall 755 of the top panel to the lower side. The vacuum insulation 740 is separated from the ceiling illumination 750 by an inner wall 755.

Next, a modification of the twenty-ninth embodiment will be described with reference to Figs. 45 to 47, and a portion of the refrigerator in the modification of the twenty-ninth embodiment shown in Figs. 45 to 47 and a twenty-ninth embodiment shown in Fig. 44 will be described. In the case where the parts of the refrigerator of the form are substantially the same, the same reference numerals are used and the description thereof is used.

45 to 47 are cross-sectional views in the front-rear direction of the upper portion of the refrigerator according to another modification, similarly to FIG. 44.

First, in the refrigerator 1 according to the first modification shown in FIG. 45, the ceiling illumination 750 is disposed in contact with the inner wall 755 of the top panel, and the LED lamp 750a of the ceiling illumination 750 is disposed outside the inner wall 755 of the top panel (refrigerator) The inside is exposed to the inside of the refrigerator. Also, the ceiling illumination 750 is disposed on the bent portion 757 of the inner wall 755 of the top panel.

Further, with respect to the bent portion of the concave portion 11C of the top plate portion 11A of the casing (body) 11, the bent portion of the inner wall 755 of the top plate is located on the front side, so that the bent portion and the inner wall 755 of the outer wall of the casing can be Formed in the gap in the front-rear direction of the bent portion Space, so vacuum insulation can be placed in the vertical direction in this space. Therefore, the bent portion of the middle portion of the vacuum heat insulating material 740 can be disposed in the space. Further, the vacuum heat insulating material disposed in the vertical direction may be a divided independent body. Further, the vacuum heat insulating material disposed in the vertical direction may be made thinner than the vacuum heat insulating material extending in the front-rear direction of the other portions. In this manner, since the space can be reduced in the gap between the bent portion of the outer wall of the casing and the bent portion of the inner wall 755 in the front-rear direction, the bent portion of the inner wall 755 can be retracted to the rear, and the capacity in the refrigerator can be increased.

Further, the distance between the front side angle of the bottom portion of the concave portion 11C of the bent portion of the outer wall and the angle of the upper side (the concave portion 11C side) of the bent portion of the inner wall 755 is larger than that of the other portion having no bent portion. Since the thickness of the top plate portion 11A is small, the heat insulating property may be deteriorated if only the urethane heat insulating material is used. However, the structure including the vacuum heat insulating material can greatly improve the heat insulation. Sex.

In the refrigerator 1 of the second modification shown in FIG. 46, the vacuum heat insulating material 770 is divided into a plurality of portions, and the vacuum heat insulating material 770 is divided into a first portion 771 and a second portion 772. The first portion 771 covers a region portion on the lower side of the door opening driving portion 54 (55), and the second portion 772 covers a region portion on the lower side of the control substrate 710. The LED lamp 750a of the ceiling illumination 750 is separated from the first portion 771 of the vacuum heat insulating material 770, and the second portion 772 of the vacuum heat insulating material 770 on the control substrate 710 side is in contact with the inner wall portion 776.

Further, the vacuum heat insulating materials of the first portion 771 and the second portion 772 are arranged to overlap each other in the front-rear direction. It has a structure in which the inner wall 755 of the top plate is bent with respect to the bent portion of the concave portion 11C of the top plate portion 11A of the casing (body) 11. The bent portion is located on the front side, whereby a space is formed in the gap between the bent portion of the outer wall of the box and the bent portion of the inner wall 755 in the front-rear direction, so that it can overlap.

Further, the size of the angle between the front side angle of the bottom portion of the concave portion 11C of the bent portion of the outer wall and the upper side (the concave portion 11C side) of the bent portion of the inner wall 755 is larger than that of the other portion having no bent portion. When the thickness of the top plate portion 11A is small, the urethane which is the foamed heat insulating material may not easily flow during the production. Therefore, the urethane can be ensured by disposing the vacuum heat insulating material in the space. The flow space of the ester makes it possible to positively fill the urethane and increase the filling speed.

In the refrigerator 1 of the third modification shown in FIG. 47, the bent portion 780 of the inner wall 755 of the top plate is formed obliquely. The top plate illumination 750 is formed in a right-angled triangular shape in conformity with the shape of the inclined bent portion 780, and the top plate illumination 750 is placed in the bent portion 780. The vacuum heat insulating material 740 is not divided into a single body. As such, the LED lamps 750a of the ceiling illumination 750 are disposed within the bent portion 780, and the ceiling illumination 750 is not separated from the vacuum insulation 740 to be spaced apart.

In the twenty-ninth embodiment, the door opening operation portions 51 and 52 shown in Fig. 1 can be continuously touched by the user for a fixed time or longer, and the door opening device can be actuated.

For example, the remote detecting sensor 100 shown in FIG. 42 is, for example, an infrared sensor for detecting the human body when the user (user)'s human body is located away from the refrigerator 1 but The hole (opening) for removing the printing paint from the infrared ray for transmitting the infrared detecting sensor to the front surface plate in front of the door may be disposed on the hole with an infrared ray transmitting member which is in the same color as the printing paint. Wait. Moreover, a plurality of small holes (openings) can be formed at the portion To coat the paint, etc., so that the removal of the paint is not obvious. Moreover, it is also possible to make it difficult to see the remote detecting sensor as an infrared sensor disposed on the back side of the glass plate from the front. Further, the coating material may be a coating material that transmits infrared rays or a semi-transmissive member that transmits a wavelength of infrared rays by sputtering or etching to partially transmit visible light. Hard to pass. In this case, as the semi-transmissive member, a color having a long wavelength can be used. For example, when a red wavelength (for example, 620 nm to 750 nm) having a wavelength longer than a blue wavelength (450 nm to 495 nm) is transmitted, the long wavelength of the red wavelength or higher is a wavelength of infrared light (for example, 760 nm to 830 nm). The above) is easy to pass. Further, at this time, the color of the display member located in the vicinity of the infrared sensor can be made by using a light-emitting member (green or yellow, red light-emitting diode, etc.) which is also a long-wavelength color. The display also allows the user to see through the semi-transmissive components and make the infrared sensor or parts inside the door difficult to see.

Further, the remote detecting sensor as an infrared sensor may be disposed on the base plate and inserted together with the control operating portion 50 or the door opening operating portions 51, 52. At this time, a part of the electrodes of the control operation portion 50 or the door opening operation portions 51, 52 may be cut off or slit so that infrared rays can be transmitted from the back side of the electrode to the door side. Thereby, the remote detection sensor easily detects the user who is operating. Further, the remote detecting sensor may be provided between the control operating portion 50 and the opening operation portions 51, 52 of the touch open switch.

[Thirtieth embodiment]

Fig. 48 is a front elevational view showing the refrigerator 1 of the 30th embodiment. Figure 49 It is a plan view of the refrigerator 1 shown in FIG. 48, and FIG. 50 is a side view of the refrigerator 1 shown in FIG.

As shown in FIGS. 48 to 50, the pair of left door 21 and right door 22 cover the front surface opening of the refrigerator compartment 12 of the refrigerator 1. Therefore, the left door 21 and the right door 22 are attached so that the upper end of the left end portion and the right end portion of the casing 11 of the refrigerator main body are opened and closed by the hinge portion.

Each of the left door 21 and the right door 22 is a heat insulating structural member, that is, an opening portion of a flat inner plate that is open at the front surface, and a front surface plate 21A and 22A made of glass that is colored and transparent, and is disposed in the inner cavity portion. A vacuum heat insulating material is disposed in a cavity portion that is not completely filled with the vacuum heat insulating material, and is provided with a polyurethane heat insulating material (hereinafter also referred to simply as a urethane heat insulating material) or a preformed one. Solid insulation (eg EPC).

As shown in FIGS. 48 to 50, the door opening operation portions 551 and 552 are provided in the vicinity of the lower side of the front surface plate 21A of the left door 21 and the front surface plate 22A of the right door 22, respectively. The door opening drive units 54, 55 are provided at positions corresponding to the vicinity of the open side end portions of the upper side of the left door 21 and the right door 22, respectively, in the left and right portions near the front end of the top plate surface of the casing 11.

The door opening drive units 54 and 55 are door opening devices for forcibly opening the left door 21 and the right door 22, respectively. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet, thereby pressing the upper side of the left side door 21 and the right door 22 toward the front side of the open side end portion, thereby causing the left door 21 and the right door. 22 mandatory automatic opening.

One of the door opening operation portions 551 is disposed at the lower right position of the left door 21, and the other door opening operation portion 552 is disposed at the lower left position of the right door 22. The door opening operation portion 551 is disposed inside the glass front surface plate 21A of the left door 21, and the door opening operation portion 552 is disposed inside the glass front surface plate 22A of the right door 22.

51(a) and 51(b) show examples of the configuration of the substrate 553 of the door opening operation unit 551 shown in Fig. 48. FIG. 52 is a view showing the proximity sensor 560 and the guard electrode 570 disposed on the substrate 553 of the door opening operation unit 551 shown in FIGS. 51(a) and 51(b). FIG. 53 is an exploded perspective view showing a configuration example of the door opening operation unit 551.

The door opening operation portion 551 shown in FIG. 48 has the same configuration as the door opening operation portion 552. However, the door opening operation portion 551 may have a bilaterally symmetrical shape or a left and right shape. 51(a) and 51(b) show examples of the shape of the substrate 553 of the door opening operation unit 551. However, the door opening operation unit 552 and the door opening operation unit 551 have substantially the same shape. Therefore, reference is made to Figs. 51(a) and 51. (b) to FIG. 53 , the substrate 553 of the door opening operation unit 551 will be described as a representative.

First, referring to Fig. 53, the door opening operation unit 551 includes a substrate assembly 500M, a plastic storage space member 585 called an open box for housing the substrate assembly 500M, and a plastic cover member 590. In the back surface 585R of the plastic storage space member 585, it is preferable to adhere a metal body, for example, an aluminum foil. A metal body 591 such as an aluminum foil is adhered to the inner surface of the plastic cover member 590. Thereby, electromagnetic waves generated on the body side of the refrigerator 1 do not affect the side of the substrate assembly 500M.

The substrate assembly 500M includes a shielding plate 599 made of plastic, a substrate 553, The label 597 and the LED substrate 598 on which the display LED 557 is mounted are operated. The substrate 553 is an electrostatic touch switch substrate, and is supported and fixed to the front surface side of the shielding plate 599. On the front surface side of the substrate 553, an operation label 597 is disposed. On the back side of the shielding plate 599, an LED substrate 598 for display is supported and fixed. A plurality of LEDs 577 are mounted on the LED substrate 598. The shielding plate 599 functions as an indicating member that supports the two substrates 553 and the LED substrate 598 and a partitioning member that separates the LED light.

Left and right slits 574 and 575 (light transmitting members) are formed at positions corresponding to the operation label 597 of the substrate 553. The position of the slits 574, 575 is located between the proximity sensor 560 and the intermediate portion portion 589. The substrate assembly 500M is housed in the housing space member 585 via the rectangular opening portion 586 of the housing space member 585. The opening portion 586 of the accommodation space member 585 is covered by the cover member 590.

As shown in Fig. 51 (a) and Fig. 52, the substrate 553 of the door opening operation portion 551 is a vertically long rectangle or a square, and the substrate 553 has a surface 553A shown in Fig. 51 (a) and a back surface shown in Fig. 51 (b). 553B. On the substrate 553, a mounting portion 571 of an electronic component and an arrangement portion 572 of the proximity sensor 560 and the guard electrode 570 are provided. In the mounting portion 571 of the electronic component shown in FIG. 51 (a) and FIG. 52, necessary electronic components or connector parts are mounted so as to be housed in the concave portion of the shielding plate 599 of the partition member. Wait. Further, on the surface of the substrate 553, a metal electrical connection portion 571b is formed in a state of being substantially flat without being protruded, whereby the substrate 553 can be brought into contact with the back surface of the glass door.

Moreover, by covering with the operation label 597 as a cover member for covering the substrate 553, it is possible to prevent the user from touching the electrical connection portion 571b. Noise when static electricity is accumulated in the glass door. Moreover, the operation label 597 can also be a colorant or a vaporizer.

The arrangement portion 572 on the surface 553A side shown in FIG. 51(a) is provided with a proximity sensor 560 as a first electrode, a guard electrode 570 as a third electrode, and an intermediate portion 589 as a second electrode. The intermediate portion portion 589 is disposed between the proximity sensor 560 and the guard electrode 570. The proximity sensor 560, the guard electrode 570, and the intermediate portion portion 589 are metal electrodes, but are electrically insulated from each other. The intermediate portion portion 589 as the second electrode has a function of assisting the proximity sensor 560 as a proximity sensor. The guard electrode 570 performs a change in the detection effective range of the proximity sensor 560.

Further, as shown in FIG. 51(b), a mesh ground pattern 573 as a fourth electrode is disposed on the back surface 553B of the substrate 553 corresponding to the arrangement portion 572. Thereby, the ground pattern 573 prevents the noise from the refrigerator body from affecting the electromagnetic field generated by the proximity sensor 560 and the electromagnetic field generated by the guard electrode 570.

As shown in Fig. 51 (a) and Fig. 52, a through hole 560C is formed at a central position of the proximity sensor 560, and a wire pattern 560H is connected to the through hole 560C as shown in Fig. 51 (b). . The user's action of pressing (contacting) the proximity sensor 560 with a finger is generally performed toward the center of the proximity sensor 560, so that the through hole 560C is formed in the middle of the proximity sensor 560 for the through hole 560C. s position.

The reason why the through hole 560C is formed in the substantially positive middle of the proximity sensor 560 is based on the following reason. That is, in the proximity sensor 560, the pass is formed. The central area of the hole 560C has the highest switching sensitivity compared to other areas. Thereby, the center of the proximity switch 560 having the through hole 560C is pressed by the user's finger to enable the finger to contact the sensitivity optimum.

The proximity sensor 560 shown in FIG. 51(a), FIG. 51(b) and FIG. 52 is an electrode for electrostatic touch (contact), and is a capacitance type detecting component, and the electrostatic capacitance type detecting component For detecting the approach of the human body or the object in the front (front surface) direction of the left door 21 and the right door 22 shown in FIGS. 49 and 50, for example, within about 100 mm. The proximity sensor 560 detects the proximity of the finger on a portion of the user's body, specifically, for example, when the finger is approaching. The proximity sensor 560 is a capacitive touch sensor, but a mutual capacitance type touch sensor or a self capacitance type touch sensor may be used.

In the mutual capacitance method, one transmitting electrode and one receiving electrode are included, and when a current is supplied to the transmitting electrode, an electromagnetic field is generated, and the receiving electrode receives the electromagnetic field. For example, when the finger of the human body approaches to the detection area of the proximity sensor 560, a part of the electromagnetic field is absorbed and received by the receiving electrode, so the amount of detected energy is reduced, whereby the proximity sensor 560 can detect The proximity of the finger was measured.

In the self-capacitance method, one electrode having a stray capacitance (proximity sensor 560) is required. The stray capacitance of the electrode (proximity sensor 560) is affected by the parasitic capacitance between the electrode (proximity sensor 560) and its surrounding electrical conductor (the finger of the human body). When the finger of the human body approaches to the proximity sensor 560, the value of the stray capacitance increases due to the parasitic capacitance, and by measuring the increased stray capacitance, the proximity sensor 560 can detect the proximity of the finger. .

As illustrated in FIGS. 51(a), 51(b) and 52, the proximity sensor 560 is, for example, a rectangular switch that is formed long in the longitudinal direction, around the proximity of the sensor 560 to surround the electrode. The slits 574, 575 are formed in a manner. As shown in FIG. 52, in the slits 574 and 575, the substrate 598 is covered from the back surface, and a plurality of LEDs 577 functioning as illumination devices are arranged at intervals.

Among the plurality of LEDs 577, four LEDs 577 corresponding to the four corner portions 576R of the slits 574 and 575 are disposed outside the slit 576 in the slit 576.

As shown in FIG. 52, one end portion of the proximity sensor 560 is coupled to the arrangement portion 572 by the connection portion 560A, and the other end portion of the proximity sensor 560 is coupled to the arrangement portion 572 by the connection portion 560B. A through hole 560C for electrical connection is formed in a central portion of the proximity sensor 560. The reason why the through hole 560C is formed in the central portion of the proximity sensor 560 as described above is that, as already explained, the area of the portion of the proximity sensor 560 provided with the through hole 560C is higher in detection sensitivity than the other portion of the area. Since the portion of the area where the user's finger approaches and contacts is the central portion of the proximity sensor 560, the through hole 560C is disposed in the central portion of the proximity sensor 560. The proximity sensor 560 is formed in a substantially rectangular shape by forming an electrode in a region of a broken line in a region 572a of the slits 574, 575 of the arrangement portion of the substrate. Moreover, the slits 574, 575 do not surround the entire proximity sensor 560, but are formed as Word shape. It is configured such that the inner side and the outer side are connected by forming the bridge portion 572ab connected to the peripheral portion 572b around the slit, so that the substrate is not divided and held as one substrate.

The guard electrode 570 shown in Fig. 51 (a), Fig. 51 (b), and Fig. 52 is formed in a rectangular frame shape in the arrangement portion 572 around the proximity sensor 560 and the intermediate portion 589. The guard electrode 570 is a metal body and includes a pair of short side electrode portions 570A and a pair of long side electrode portions 570B. The guard electrode 570 generates an electromagnetic field that is opposite to the electromagnetic field generated by the proximity sensor 560.

Thereby, as shown in FIG. 49 and FIG. 50, the electromagnetic field 560P generated by the proximity sensor 560 is suppressed from expanding by the electromagnetic field in the opposite direction generated by the guard electrode 570. Therefore, the electromagnetic field generated by the guard electrode 570 suppresses the spread of the electromagnetic field 560P generated by the proximity sensor 560, whereby the guard electrode 570 functions as an effective range changing unit of the detection range, and the effective range of the detection range The change component changes the effective range of the human body detection range.

The guard electrode 570 narrowly changes the detection range of the proximity sensor 560 when detecting the approach of the human body, for example, the finger, thereby changing the effective range of the detection range of the proximity sensor 560. Specifically, the guard electrode 570 changes the effective range of the detection range of the proximity sensor 560. As a result, as shown in FIG. 49, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 551 of the left door 21 is only The guide is approaching the front direction of the sensor 560. Similarly, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 552 of the right door 22 is guided only to the front direction of the proximity sensor 560.

Therefore, as shown in FIG. 49, the electromagnetic field 560P generated by the proximity sensor 560 contracts so as not to expand in the X direction which is the left-right direction.

Further, as shown in FIG. 50, the approach of the door opening operation portion 551 of the left door 21 is as shown in FIG. The electromagnetic field 560P generated by the sensor 560 is only directed toward the front direction of the proximity sensor 560. Similarly, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 552 of the right door 22 is guided only to the front direction of the proximity sensor 560. Therefore, in FIG. 50, the electromagnetic field 560P generated by the proximity sensor 560 is contracted so as not to expand in the Z direction as the vertical direction.

That is, the electromagnetic field 560P of the proximity sensor 560 shown in FIG. 49 and FIG. 50 represents the effective range of the human body detection range, and the effective range of the human body detection range is equivalent to the direction different from the front of the proximity sensor 560. The range (the range that extends up and down, left and right) is different. That is, the effective range of the human body detection range is that at least the operation direction of the user approaching the sensor 560 is set to the effective range, and the effective range is defined by changing the range of the narrowing direction different from the operation direction, etc., specifically In addition, it is a range other than at least a part of the range of the direction different from the front (at least a part of the range extended to the up-and-down, the left-right, and the back, etc.).

FIG. 54 is a block diagram showing electrical connection between the control unit 556, the door opening operation units 551 and 552, and the door opening drive units 54, 55 as the door opening device.

As shown in FIG. 54, the control unit 556 is electrically connected to the proximity sensor 560 of the door opening operation portions 551 and 552, the guard electrode 570, the door opening drive units 54, 55, and a plurality of LEDs 577 as illumination devices.

The proximity sensor 560 is controlled by the control unit 556, and the control unit 556 maintains the proximity sensor 560 in a "high sensitivity" state. When the finger enters the detection area of the proximity sensor 560, that is, the electromagnetic field 560P shown in FIG. 49 and FIG. 50, the control portion 556 of FIG. 54 receives the signal from the proximity sensor 560 that the finger approaches to the proximity sensor 560. SG.

Further, when receiving the signal SG from the proximity sensor 560, the control unit 556 of FIG. 54 determines that the finger is approaching with respect to the proximity sensor 560, thereby stopping the energization of the guard electrode 570, and the proximity sensing is performed. The sensitivity of the device 560 is reduced from "high sensitivity" to "low sensitivity". Further, when the control unit 556 receives the signal SG from the proximity sensor 560, the control unit 556 lights the LED 577 to illuminate the periphery of the proximity switch 560, whereby the position of the proximity switch 560 is made by illumination. Appears so that the user can visually confirm the position of the proximity switch 560.

Further, since the LED 577 is illuminated, since the LED 577 is used to illuminate the display, the user can see the operation portion, so that it is not necessary to implement the operation position of the operation portion on the front surface plate 21A (or 22A) of the glass plate. Printing, etc.

And, when the finger comes into contact with the proximity sensor 560 from the state close to the proximity of the sensor 560, the proximity sensor 560 functions as a contact switch, and the proximity sensor 560 sends the finger to the control portion 556 that the finger has come into contact. The contact signal SH of the sensor 560. Thereby, the control unit 556 can cause the proximity sensor 560 to function as a contact sensor, and for example, the door opening operation of the left door 21 is enabled, and the control unit 56 causes the door opening drive unit 54 to operate to actually perform the left door 21 Opening the door. The described operating procedure is the same for the right door 22.

Thereby, the user can confirm and touch the position of the proximity switch 560 disposed inside the glass surface of the left door 21 or the right door 22 with the aid of the illumination of the LED 577, thereby opening the left door 21 or the right door 22.

As described above, the control unit 556 sets the sensitivity of the proximity sensor 560 by the hand. The "high sensitivity" at the time of approach is switched to "low sensitivity", whereby the proximity sensor 560 functions as a contact sensor. When the finger approaches the proximity sensor 560, the control unit 556 functions to make the electrostatic switch 560 function as a "proximity sensor", and the control unit 556 sets the sensitivity of the proximity sensor 560 to "large". The function as a "proximity sensor" is "valid". Therefore, since the control unit 556 does not function as the "contact sensor", the proximity sensor 560 opens the door to the left door 21 and the right door 22 which are the original functions of the door opening operation portions 551 and 552. Operation) is "invalid".

As described above, when the user's finger approaches the proximity sensor 560 and the finger enters the electromagnetic field 560P of the sensor 560 that is within the effective range of the human body detection range, the proximity sensor 560 notifies the proximity of the finger to the control. Department 556. When the proximity sensor 560 notifies the control unit 556 of the approach of the finger, the control unit 556 switches the sensitivity of the proximity sensor 560 from "large" to "small". Further, the control unit 556 causes the lighting display of the proximity sensor 560 to be turned from the off state to the open state, and the position of the proximity sensor 560 can be clearly indicated by the LED 577. Therefore, the user can visually confirm the position of the proximity sensor 560 and reliably touch the proximity sensor 560 with the finger. The control unit 56 causes the proximity sensor 560 to function as a "contact sensor" which is the original function. Therefore, by touching the proximity sensor 560 with a finger, the opening operation (opening operation) of the left door 21 or the right door 22 becomes "effective".

The opening operation (opening operation) of the left door 21 is the same as the opening operation (opening operation) of the right door 22, and thus the description thereof will be omitted.

As shown in Figure 51 (a), Figure 51 (b) and Figure 52, by proximity The guard electrode 570 is disposed around the detector 560, and the effective range of the human body detection range of the proximity sensor 560, that is, the electromagnetic field 560P is detected in the front direction (front direction) of the left door 21 and the right door 22, for example, in a range of about 100 mm. The hand or finger is close. At this time, the effective range of the human body detection range of the proximity sensor 560, that is, the electromagnetic field 560P is restricted by the arrangement of the guard electrode 570, so as not to expand in the up and down direction and the left and right direction.

As shown in FIG. 49, by extending the effective range of the human body detection range of the proximity sensor 560 in the left-right direction (X direction), as shown in FIG. 49, when the left door 21 is to be along the arrow 21M When the illustrated trajectory is opened and the finger approaches the proximity sensor 560 of the left door 21, the proximity sensor 560 of the closed right door 22 can be prevented from detecting the finger. Similarly, when the right door 22 is to be opened along the trajectory shown by the arrow 22M to bring the finger close to the proximity sensor 560 of the right door 22, the proximity sensor 560 of the closed left door 21 can be prevented from detecting the finger.

Therefore, the effective range of the human body detection range of the proximity sensor 560 of the right door 22, that is, the electromagnetic field 560P does not enter the trajectory when the left door 21 as the moving member is opened. Similarly, the effective range of the human body detection range of the proximity sensor 560 of the left door 21, that is, the electromagnetic field 560P does not enter the trajectory when the right door 22 as the moving member is opened.

Thereby, when the left door 21 or the right door 22 is opened, the proximity sensor 560 of the right door 22 or the left door 21 on the side that is not opened and closed can be prevented from inadvertently erroneously detecting the user's finger or the left door 21 or the right door 22.

Moreover, as shown in FIG. 50, by the upper limit in the up and down direction (Z direction) The extension of the effective range of the human body detection range of the proximity sensor 560, so that the human body detection range of the proximity sensor 560 of the left door 21 is effective when the pull-out door 23 as the moving member is extracted in the direction of the arrow The range, that is, the electromagnetic field 560P, and the effective range of the human body detection range of the proximity sensor 560 of the right door 22, that is, the electromagnetic field 560P does not enter the trajectory when the pull-type door 23 is opened.

Thereby, when the pull-out door 23 is opened, the proximity sensor 560 of the left door 21 and the proximity sensor 560 of the right door 22 can be prevented from inadvertently detecting the user's finger or the pull-out door 23 inadvertently.

Further, the size of the guard electrode 570 shown in FIGS. 51(a), 51(b) and 52 can be, for example, 30 mm × 30 mm or more. By setting the size of the guard electrode 570 as such, when the user wants to open the left door 21 or the right door 22, for example, by touching the elbow instead of the finger to the proximity sensor 560, the elbow can be prevented from simultaneously touching the proximity sensor 560. Both with the guard electrode 570. Thereby, the user can open the left door 21 or the right door 22 whether using a finger or an elbow.

Next, an example of the storage structure of the substrate 553 in the left door 21 and the right door 22 will be described with reference to FIGS. 55(a) to 55(c). 55(a) to 55(c) are diagrams showing an example of a housing structure of the substrate 553 in the left door 21 and the right door 22. 55(a) is a front view of the left door 21 and the right door 22, and FIG. 55(b) is a perspective view showing a configuration of the inner end surface portion 21T (the inner end surface portion 22T of the right door 22) of the left door 21 showing the storage structure of the substrate 553. Fig. 55 (c) is a view showing an example of the cover member 590.

As shown in FIG. 55(a), the left door 21 and the right door 22 are closed. Next, the inner end surface portion 21T of the left door 21 is opposed to the inner end surface portion 22T of the right door 22. The rectangular opening portion 586 of the housing space member 585 is located at each of the inner end surface portions 21T, and the housing space member 585 of the substrate assembly 500M is located inside the left door 21 and the right door 22. The substrate assembly 500M is inserted into and housed in the housing space member 585 from the opening portion 586.

The opening portion 586 is closed by the cover member 590 after the substrate assembly 500M is housed. On the inner surface of the cover member 590, a metal body 591 such as an aluminum foil tape or an iron plate is disposed. The metal body 591 is a changing member that limits the electromagnetic field that is close to the effective range of the human body detection range generated by the sensor 560 to change the effective range of the detection range of the proximity sensor 560. The metal body 591 as the effective range changing means of the detection range is disposed between the left door 21 and the right door 22 which are adjacent moving members.

By disposing the metal body 591 on the cover member 590 as described above, the metal body 591 blocks the electromagnetic field between the left door 21 and the right door 22. Thus, the electromagnetic field of the proximity sensor 560 of the left door 21 and the electromagnetic field of the guard electrode 570 do not affect the electromagnetic field sides of the proximity sensor 560 and the guard electrode 570 of the right door 22. Moreover, the electromagnetic field of the proximity sensor 560 from the right door 22 and the electromagnetic field of the guard electrode 570 do not affect the electromagnetic field sides of the proximity sensor 560 and the guard electrode 570 of the left door 21.

Next, an operation example when the user opens, for example, the left door 21 will be described with reference to FIGS. 48 to 50 and FIG.

When the user brings the finger closer to the proximity sensor 560 on the left door 21 side shown in FIG. 49 and FIG. 50, and enters the human body detection range shown in FIG. 49 and FIG. In the effective range of the electromagnetic field 560P, the proximity sensor 560 of the high sensitivity state detects that the finger approaches to the proximity sensor 560. Thereby, the control unit 556 of FIG. 54 receives the signal SG indicating that the finger approaches the proximity sensor 560.

Further, the control unit 556 of FIG. 54 stops the energization of the guard electrode 570 based on the signal SG from the proximity sensor 560, and the control unit 556 changes the sensitivity of the proximity sensor 560 to be changed from "high sensitivity" to "high sensitivity". "Low sensitivity". Further, the control unit 556 lights the LED 577 to illuminate the proximity switch 560, thereby indicating the position of the proximity switch 560 so that the user can visually confirm the position of the proximity switch 560.

Also, when the finger touches the proximity sensor 560, the low-sensitivity proximity sensor 560 functions as a touch switch (contact switch) for opening the left door 21, and transmits a finger contact to the control portion 556 of FIG. The contact signal SH to the proximity sensor 560. Thereby, the control unit 556 activates the door opening operation of the left door 21, and the control unit 556 operates the door opening drive unit 54, so that the left door 21 can be opened.

In addition, the operation example when the user opens the right door 22 is the same as the operation example when the left door 21 is opened, and thus the description thereof is omitted.

As such, when the user touches the proximity sensor 560 functioning as a contact sensor with a finger, the control portion 556 can automatically open the left door 21 or the right door 22.

When the user only touches the proximity sensor 560, the control unit 556 causes the proximity sensor 560 to function as a touch sensor (contact sensor) to set the door opening operation of the left door 21 to "valid". This performs the door opening operation of the left door 21. The same is true for the right door 22.

Further, in the case where the user inadvertently touches both the proximity sensor 560 and the guard electrode 570 shown in FIGS. 51(a) and 51(b), the control portion 556 does not make the proximity sensor 560 a contact. When the sensor functions, the door opening operation of the left door 21 is set to "invalid", whereby the door opening operation of the left door 21 is not performed. Thereby, when the user, for example, the elbow or the like, inadvertently touches both the proximity sensor 560 and the guard electrode 570, the control unit 556 can set the door opening operation of the left door 21 to "invalid", thereby prohibiting the left door 21 Opening the door. Further, when water droplets adhere to both the proximity sensor 560 and the guard electrode 570 shown in FIG. 54 and FIGS. 51(a) and 51(b), the control unit 556 does not cause the proximity sensor 560. The function of the touch sensor is to make the door opening operation of the left door 21 "invalid", whereby the door opening operation of the left door 21 is not performed. The prohibition of the door opening operation is the same for the right door 22.

Further, for example, in the case where the elbow portion of the user simultaneously touches both the guard electrode 570 and the intermediate portion portion 589 shown in FIG. 54 and FIGS. 51(a) and 51(b), the door opening operation of the door 21 can be set. To be "effective", the door opening operation of the left door 21 is performed. The same is true for the right door 22.

As described above, the split left door 21 and the right door 22 having the glass front surface plates 21A, 22A each have an electrostatic touch type contact sensor which is used as the proximity sensor 560, which is used as the proximity sensor 560, which is used as the proximity sensor 560, The proximity sensor 560 detects the proximity of a finger or the like of the human body. As shown in FIGS. 51(a) and 51(b), the substrate 553 is surrounded by the proximity sensor 560 which is an electrode for electrostatic touch, and is spaced apart from the proximity sensor 560. Shielded electrode 570.

The guard electrode 570 is an effective range changing unit of the detection range for changing the effective range of the human body detection range of the proximity sensor 560 when the human body approaches. The guard electrode 570 generates an electromagnetic field in the opposite direction to the electromagnetic field generated by the proximity sensor 560 when the human body is detected.

Thereby, the guard electrode 570 limits the electromagnetic field generated when the proximity sensor 560 detects the proximity of the human body in the up-and-down direction and the left-right direction, so as to be close to the sensor 560 as shown in FIG. 49 and FIG. The extended range of electromagnetic fields generated for proximity detection is limited. Thus, the electromagnetic field 560P (proximity detection range) generated by the proximity sensor 560 can be limited only in the forward direction of the proximity sensor 560.

Therefore, in the case of a split type refrigerator having the left door 21 and the right door 22, for example, it is possible to prevent the proximity sensor 560 of the right door 22 from being erroneously detected due to the opening and closing of the door of the left door 21, and to prevent the right door 22 from being erroneously detected. The door opening and closing causes the proximity sensor 560 of the left door 21 to cause false detection.

Moreover, in the case of a single-open refrigerator rather than a split-type refrigerator, when the human body or object comes to the side of the refrigerator, the proximity sensor of the door can be prevented from inadvertently detecting the human body or object.

[31st embodiment]

Fig. 56 is a front elevational view showing the refrigerator 1 of the 31st embodiment.

As shown in FIG. 56, the pair of left door 21 and right door 22 cover the front surface opening portion of the refrigerator compartment 12 of the refrigerator 1 in an openable and closable manner. Therefore, the left door 21 and the right door 22 respectively The upper and lower ends of the refrigerator body, that is, the left end portion and the right end portion of the casing 11, are attached to each other in such a manner that the hinge portions are opened and closed in a split manner.

Each of the left door 21 and the right door 22 is a heat insulating structural member, that is, an opening portion of a flat inner plate that is open at the front surface, and a front surface plate 21A, 22A made of glass that is colored and transparent, and is disposed in the inner cavity portion. A vacuum heat insulating material is disposed in a cavity portion that is not completely filled with the vacuum heat insulating material, and is provided with a polyurethane heat insulating material (hereinafter also referred to simply as a urethane heat insulating material) or a preformed one. Solid insulation (eg EPC).

As shown in Fig. 56, a pair of door opening operation portions 651, 652 are respectively provided in the vicinity of the lower side of the back side of the front surface plate 21A of the left door 21 and the front surface plate 22A of the right door 22. The door opening operation portions 651, 652 can perform a touch operation from the surface of the front surface plate 21A by the user's finger. The door opening operation unit 651 has a capacitance type proximity sensor 607 and an electrostatic conductivity type touch button electrode 633. The door opening operation unit 652 has a capacitance type proximity sensor 608 and an electrode 633 of a capacitive touch button. The proximity sensor 607 is disposed on the upper side of the electrode 633 of the touch button, and the proximity sensor 608 is disposed on the upper side of the electrode 633 of the touch button.

Further, on the back side of the front surface plate 21A of the left door 21, a capacitance type control operation portion 650 for making a touch from the surface of the front surface plate 21A by the user's finger is provided. Operate to operate the refrigerator.

The control operation unit 650 is provided with, for example, an infrared light receiving unit for detecting an environmental state around the refrigerator; a control button (control switch) 650CS and return button (return switch) 650HS; detect the touch of the return button 650HS and penetrate the LED display light of the display operation button name, cooling function name, cooling intensity, etc.; penetration display A 7-segment LED display device with a change in temperature value or the like.

As shown in FIG. 56, the door opening drive units 54, 55 are provided at positions corresponding to the vicinity of the open side end portions of the upper side of the left door 21 and the right door 22, respectively, in the left and right portions near the front end of the top plate surface of the casing 11.

The door opening drive units 54 and 55 are door opening devices for forcibly opening the left door 21 and the right door 22, respectively. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet, thereby pressing the upper side of the left side door 21 and the right door 22 toward the front side of the open side end portion, thereby causing the left door 21 and the right door. 22 mandatory automatic opening.

As shown in FIG. 56, the door opening operation portion 651 including one of the proximity sensors 607 is disposed at the lower right position of the left door 21, and the door opening operation portion 652 including the other proximity sensor 608 is disposed at the lower left position of the right door 22. . The door opening operation portion 651 including the proximity sensor 607 is disposed inside the glass front surface plate 21A of the left door 21, and the door opening operation portion 652 including the proximity sensor 608 is disposed on the glass front surface plate 22A of the right door 22. internal.

57 is a view showing a configuration example of the vicinity of the door opening operation portion 651 including the proximity sensor 607 in the left door 21 shown in FIG. 56 (or the vicinity of the door opening operation portion 652 including the proximity sensor 608 in the right door 22). Sectional view on the V1 line. A configuration example in the vicinity of the door opening operation portion 652 shown in Fig. 56 and a door opening operation portion shown in Fig. 56 The structural examples near 651 are the same.

As shown in FIG. 57, on the inner surface side of the glass front surface plates 21A and 22A, a sheet material 621 for shielding is disposed by printing or the like. This sheet member 621 is disposed to prevent the inside from being seen through the front surface plates 21A and 22A.

As shown in FIG. 57, on the inner surface side of the front surface plates 21A and 22A, the first substrate 631 and the second substrate 632 are spaced apart from each other and are arranged in parallel with respect to the front surface plates 21A and 22A.

The proximity sensor 607 (or the proximity sensor 608) and the connector 629 are disposed on the back surface of the first substrate 631 disposed on the front side, and a plurality of capacitive touch buttons are disposed on the surface of the first substrate 631. (electrode) 633. A plurality of through holes 634 are formed in the first substrate 631, and each of the holes 634 is disposed at a position behind the touch button 633. Proximity sensors 607, 608 are microcomputers with proximity sensor functionality.

As shown in FIG. 57, a plurality of LEDs 635 and a connector 636 are disposed on the surface of the second substrate 632 disposed on the rear side of the first substrate 631. The connector 636 of the second substrate 632 is connected to the connector 629 of the first substrate 631 by the trunk wire harness 628.

Each of the LEDs 635 is disposed at a position facing the respective holes 634 of the first substrate 631. Thereby, the illumination light LLT generated by each of the LEDs 635 can illuminate the touch button 633 from the back toward the front surface plate 21A (22A) side through the respective holes 634. Thereby, the user can visually confirm the position of the proximity sensor 607 (608) and each touch button 633 through the front surface plate 21A (or the front surface plate 22A) and the sheet material 621. s position.

Fig. 58 is a cross-sectional view taken along the line V2-V2 of the control operation unit 650 shown in Fig. 56.

As shown in Fig. 58, on the inner surface side of the glass front surface plate 21A, a sheet material 621 for shielding is disposed by printing or the like. This sheet member 621 is disposed to prevent the inside from being seen through the front surface plate 21A. An operation label 661, a diffusion film 662, a transparent electrode 663, and a substrate 664 are disposed inside the front surface plate 21A. The front surface plate 21A faces the substrate 664, and the operation label 661, the diffusion film 662, and the transparent electrode 663 are arranged in parallel at intervals. The diffusion film 662 diffuses the illumination light LLS generated by the plurality of LEDs 665 mounted on the substrate 664 toward the front surface plate 21A side.

On the surface of the substrate 664, a plurality of LEDs 665, a shielding plate 666 for light guiding, and a connector 667 of a flexible printed circuit board are mounted. The connector 667 is connected to the transparent electrode 663 by a flexible printed substrate 668. Each of the LEDs 665 is disposed between the left and right shielding plates 666, and the illumination light LLS of each of the LEDs 665 is irradiated toward the transparent electrode 663 by the shielding plate 666, and after passing through the transparent electrode 663, by the diffusion film 662 The front surface plate 21A is diffused. Thereby, the user can visually confirm the electrode position of the transparent electrode 663 by the front surface plate 21A and the sheet member 621.

59 is a block diagram showing electrical connections between the control unit 656, the control operation unit 650, the door opening operation units 651 and 652, and the door opening drive units 54, 55 as the door opening device.

As shown in FIG. 59, the control unit 656 is electrically connected to the control operation unit 650, the first substrate 631, the second substrate 632, and the door opening drive units 54, 55.

In the refrigerator 1 shown in Fig. 56, when the user opens the left door 21 (or the right door 22) of the refrigerator 1, if it is a dim environment, it is difficult to see the proximity sensor 607 (608) of the door opening operation portions 651, 652. The position is the position of the touch button 633. As described above, in order to improve the difficulty in the operation of the door opening operation portions 651 and 652, as shown in FIG. 57, the back surface of the touch button 633 of the door opening operation portions 651 and 652 and the back surface of the proximity sensor 607 (608) are mounted for supply. LED 635 as an illumination component of illumination light.

Therefore, when the user wants to touch the touch button 633 of the operation opening operation portions 651, 652 with a finger, the electrostatic proximity sensor 607 (or the proximity sensor 608) detects the approach of the person. The control unit 656 receives a signal informing the proximity of the person from the proximity sensor 607 (or the proximity sensor 608), and therefore the LED 635 for illumination is turned on according to an instruction from the control unit 656.

Thereby, the user can see the position of the proximity sensor 607 (608) of the door opening operation portions 651, 652 and the position of the touch button 633 even in a dim environment, so that the operation of the door opening operation portions 651, 652 can be easily operated. The button 633 is touched, and the left door 21 (or the right door 22) can be opened.

Moreover, when the proximity sensor 607 (or the proximity sensor 608) detects the approach of a person, the control portion 656 receives a signal from the proximity sensor 607 (or the proximity sensor 608) that the person is approaching, thus The command of the control unit 656 lights up the LED 665 for illumination of the control operation unit 650 shown in FIG. 58.

Thereby, the user can see the position of the control operation portion 650 even in a dim environment, so that the control operation portion 650 can be easily operated.

When the user wants to touch the touch button 633 of the door opening operation portions 651, 652 in a non-contact manner from the glass front surface plates 21A, 22A with fingers, preferably, the control portion 656 of FIG. 59 can set the LED 635. The brightness at the time of lighting is set to multiple stages.

That is, when the proximity sensor 607 (or the proximity sensor 608) detects the approach of a person, the control portion 656 of FIG. 59 causes the LED 635 to be weakly lit. Further, when the user touches the touch button 633 of the door opening operation portions 651, 652 with a finger in a non-contact manner and the door opening operation of the left door 21 (or the right door 22) is established, the control portion 656 of FIG. 59 causes the LED 635 to be fully illuminated. Increase the amount of light.

Subsequently, when the user leaves the finger away from the touch button 633, the control portion 656 causes the door opening driving portion 54 (or the door opening driving portion 55) to operate to open the left door 21 (the right door 22).

Thereby, when the user touches the touch button 633 of the door opening operation portions 651, 652 with a finger and the door opening operation of the left door 21 (or the right door 22) is established, the LED 635 is turned from the weak light to the full light to increase the amount of light, so the user It is possible to visually confirm that the door opening operation is established by changing the amount of light, that is, by increasing the amount of light.

The control operation unit 650 shown in FIG. 59 is operated, for example, for the user to change the operation of the cooling control content. The control unit 656 sets the operation start time (lighting timing) for turning on the LED 665 of the control operation unit 650 shown in FIG. 58 to start the operation of turning on the LED 635 of the door opening operation units 651 and 652 shown in FIG. 57. Moment The lamp timing is different and delays the predetermined delay time. That is, the timing of controlling the light emission pattern of the LED 665 of the operation unit 650 and the timing of the light emission pattern of the LEDs 635 of the door opening operation units 651 and 652 can be changed.

For example, the lighting timing of the LEDs 635 of the door opening operating portions 651, 652 may be earlier than the lighting timing of the LEDs 665 of the control operating portion 650. However, the timing of lighting the LEDs 665 of the control operation unit 650 may be reversed earlier than the lighting timing of the LEDs 635 of the door opening operation units 651 and 652.

Thereby, when the proximity sensor 607 (or the proximity sensor 608) detects the approach of the person, not only the LED 635 of the door opening operation portions 651, 652 is turned on, but also the LED 665 of the control operation portion 650 is turned on. .

As shown in FIG. 56, in the left door 21 and the right door 22, the positions of the proximity sensors 607, 608 are disposed below the position of the control operation portion 650, and the proximity sensors 607, 608 are respectively disposed at the door opening operation portion 651. , 652 is near the touch button 633.

Thereby, after the user brings the finger close to the proximity sensor 607 (or the proximity sensor 608) and contacts the proximity sensor 607 (or the proximity sensor 608), the micro movement is directly moved down by the finger. The touch buttons 633 of the door opening operating portions 651, 652 can be touched, and thus are convenient for the user.

Next, FIGS. 60(a) to 60(d) show an example of a case where the finger touches to the door opening operation after the proximity sensor 607 of the left door 21 shown in FIG. 56 detects that the user's finger is approached. When the button 633 of the portion 651 is touched, the control operation portion 650 of the left door 21 and the door opening operation portion 651 are turned on.

In Figure 60(a), the user's finger is not yet fully approached to proximity sensing. The state of the device 607. In this state, the control unit 656 functions to increase the sensitivity by setting the sensitivity of the proximity sensor 607 to "large" in order to activate the proximity sensor 607 as an electrostatic switch as a "proximity sensor". Therefore, the function as the "proximity sensor" is "valid".

At this time, the control unit 656 sets the function of the touch button 633 of the door opening operation unit 651, that is, the opening (opening operation) of the left door 21 to "invalid". Further, the control unit 656 sets the lighting display of the control operation unit 650 and the lighting display of the door opening operation unit 651 to "closed state" as indicated by a broken line. Further, the operation (opening operation) function of the control switch (control button) 650CS and the return switch (return button) 650HS of the control operation unit 650 becomes "invalid".

Next, a state in which the finger HT has approached to the proximity sensor 607 is shown in FIG. 60(b). In this state, the proximity sensor 607 detects the approach of the finger HT, so the control unit 656 switches the sensitivity of the proximity sensor 607 as a "proximity sensor" from "large" to "small" to reduce the sensitivity. To reduce the proximity of the sensor.

Therefore, since the control unit 656 causes the touch button 633 of the door opening operation unit 651 to function, the function of opening the door (opening operation) of the left door 21 by the finger HT touching the touch button 633 from the surface of the front surface plate is changed from "invalid" to "invalid". It is "effective".

Further, the control unit 656 causes the lighting display of the control operation unit 650 and the lighting display of the door opening operation unit 651 of the proximity sensor 607 to be in the "activated state" as indicated by the solid line, and the LED 635 and FIG. 58 shown in FIG. The LED 665 shown is for example weakly lit. That is, the LED 665 shown in FIG. 58 is weakly lit, thereby controlling the operation from the back. The portion 650 is illuminated to emit light, and is illuminated by the LED 635 shown in FIG. 57, thereby illuminating the door opening operation portion 651 from behind to illuminate it.

Preferably, the lighting display time is turned on for a predetermined time, for example, 10 seconds. When the finger HT does not touch the touch button 633 of the door opening operation portion 651 during the 10 second period, the LEDs 635 and 665 may be made again. Turn off the light.

The control unit 656 can set the operation start time (lighting timing) for turning on the LED 665 of the control operation unit 650 shown in FIG. 58 to activate the LED 635 of the door opening operation unit 651 shown in FIG. 57. The start time (lighting time) is different, and the predetermined delay time is delayed. In other words, the control unit 656 can change the timing of controlling the light emission pattern of the LED 665 of the operation unit 650 and the timing of the light emission pattern of the LED 635 of the door opening operation unit 651.

For example, the lighting timing of the LED 635 of the door opening operation unit 651 may be earlier than the lighting timing of the LED 665 of the control operation unit 650. However, conversely, the lighting timing of the LED 665 of the control operation portion 650 is made earlier than the lighting timing of the LED 635 of the door opening operation portion 651. By making the lighting timing different in this way, the position of the control operation portion 650 and the position of the door opening operation portion 651 can be displayed differently from the user.

Then, the operation function of the control switch 650CS and the return switch 650HS of the control operation unit 650 is activated, and "invalid" is changed to "valid".

Next, a state in which the finger HT comes into contact with the touch button 633 of the door opening operation portion 651 is shown in FIG. 60(c). In this state, the control unit 656 maintains a state in which the sensitivity of the proximity sensor 607 as the "contact sensor" is "small". The control unit 656 turns on the function of the touch button 633 of the door opening operation unit 651, that is, the opening of the left door 21. The operation (open door operation) function is still "active".

Further, the operation function of the control button (control switch) 650CS and the return button (return switch) 650HS of the control operation unit 650 is activated to be "active", so that the operation can be performed.

Further, the control unit 656 maintains the "on state" of the lighting display of the control operation unit 650 and the lighting display of the door opening operation unit 651 of the proximity sensor 607 as indicated by a solid line.

At this time, it is preferable that the amount of light displayed by the control operation unit 650 in FIG. 60(b) and the amount of light displayed by the door opening operation portion 651 of the proximity sensor 607 are relatively small and are weakly lit. However, at the contact of the finger HT in FIG. 60(c), the amount of light displayed by the control operation portion 650 and the amount of light displayed by the door opening operation portion 651 are increased by the weak light, and the light amount is completely bright. The light comes to illuminate.

Thereby, when the user touches the touch button 633 of the door opening operation portion 651 with a finger and the door opening operation of the left door 21 is established, the LED 635 is changed from the weak lighting to the full lighting to increase the amount of light, so the user increases the amount of lighting. It is possible to confirm the establishment of the door opening operation by visual inspection. Further, the user can more surely see the display of the control operation portion 650 and the display of the door opening operation portion 651, and the energy saving effect of power consumption can be improved.

As described above, in the case where the finger HT approaches the proximity sensor 607 as shown in FIG. 60(b) and the finger HT shown in FIG. 60(c) comes into contact with the touch button 633, the control portion 656 The amount of light at the time of lighting can be changed as described above to control the illumination of the operation unit 650 and the illumination of the door opening operation unit 651.

Subsequently, a state in which the user's finger HT is separated from the touch button 633 of the door opening operation portion 52 is shown in FIG. 60(d). In this state, the control unit 656 activates the input of the operation signal from the touch button 633 of the door opening operation unit 651, and causes the door opening drive unit 54 to operate, thereby performing the door opening control of the corresponding left door 21. Thereby, the left door 21 can be automatically opened.

Further, the control unit 656 maintains the "on state" of the lighting display of the control operation unit 650 and the lighting display of the door opening operation unit 651 of the proximity sensor 607 as indicated by a solid line. Further, the operation function of the control switch 650CS and the return switch 650HS of the control operation unit 650 is turned off, and "valid" is changed to "invalid".

As described above, the opening operation of the right door 22 using the door opening operation portion 652 of the right door 22 shown in FIG. 56 can be performed in the same manner as the opening operation of the left door 21 described with reference to FIGS. 60(a) to 60(d).

When the left door 21 is opened by the touch button 633 of the door opening operation portion 651 of the left door 21, the function of the touch button 633 of the door opening operation portion 652 of the right door 22 is switched to set the switching function of the door opening operation portion 652. Invalid, thereby preventing the right door 22 from opening. The opposite is also the case.

Further, when the user wants to touch the touch button 633 of the door opening operation portions 651, 652 with a finger in a non-contact manner, it is preferable that the control portion 656 of FIG. 59 can change the lighting color when the LED 635 is turned on. That is, when the proximity sensor 607 (or the proximity sensor 608) detects the approach of a person, the control unit 656 of FIG. 59 causes the LED 635 to light up, for example, blue as the first illuminating color. And, when the user touches the touch button 633 that operates the door opening operation portions 651, 652 with a finger, the left door 21 (or the right door) When the door opening operation of 22) is established, the control unit 656 of Fig. 59 causes the LED 635 to be lit, for example, red as the second illuminating color.

Subsequently, when the user leaves the finger away from the touch button 633, the control portion 656 causes the door opening driving portion 54 (or the door opening driving portion 55) to operate to open the left door 21 (the right door 22).

Thereby, when the user touches the touch button 633 of the door opening operation portions 651, 652 with a finger and the door opening operation of the left door 21 (or the right door 22) is established, the LED 635 changes the lighting color from red to blue, so the user can borrow The establishment of the door opening operation is visually confirmed by the change of the lighting color. Further, the types of the first illuminating color and the second illuminating color can be arbitrarily selected.

Further, in the case where the finger HT is brought close to the proximity sensor 607 as shown in FIG. 60(b), the LEDs 635, 665 are caused to blink, and the finger HT is touched to the touch as shown in FIG. 60(c). In the case of the button 633, the LEDs 635 and 665 are always turned on. The user can visually confirm the establishment of the door opening operation.

Further, although the left door 21 and the right door 22 shown in FIG. 56 are provided in a split manner, the control unit 656 may also cause the LED 635 of the touch button 633 of the door opening operation portion 652 in the right door 22 to always be illuminated during the door opening period of the left door 21. Similarly, during the opening of the right door 22, the control unit 656 can also cause the LED 635 of the touch button 633 of the door opening operation unit 651 in the left door 21 to always be lit. Thereby, the user can visually confirm the position of the door opening operation portion of the right door 22 (or the left door 21 on the unopened side) of the unopened side even in a dim environment, so that the door opening operation portion can be easily operated. .

The contents described in the above embodiments can be used in home appliances other than refrigerators. An apparatus, such as a laundry apparatus, a cooking appliance, or the like, is also effective as an invention for use as an operation unit.

[32th embodiment]

Fig. 61 is a front elevational view showing the refrigerator 1 of the 32nd embodiment. 62 is a plan view of the refrigerator 1 shown in FIG. 61, and FIG. 63 is a side view of the refrigerator 1 shown in FIG.

As shown in FIGS. 61 to 63, the pair of left door 21 and right door 22 cover the front surface opening of the refrigerator compartment 12 of the refrigerator 1. Therefore, the left door 21 and the right door 22 are attached so that the upper end of the left end portion and the right end portion of the casing 11 of the refrigerator main body are opened and closed by the hinge portion.

Each of the left door 21 and the right door 22 is a heat insulating structural member, that is, an opening portion of a flat inner plate that is open at the front surface, and a front surface plate 21A and 22A made of glass that is colored and transparent, and is disposed in the inner cavity portion. A vacuum heat insulating material is disposed in a cavity portion that is not completely filled with the vacuum heat insulating material, and is provided with a polyurethane heat insulating material (hereinafter also referred to simply as a urethane heat insulating material) or a preformed one. Solid insulation (eg EPC).

As shown in FIGS. 61 to 63, the door opening operation portions 551 and 552 are provided in the vicinity of the lower side of the front surface plate 21A of the left door 21 and the front surface plate 22A of the right door 22, respectively. The door opening drive units 54, 55 are provided at positions corresponding to the vicinity of the open side end portions of the upper side of the left door 21 and the right door 22, respectively, in the left and right portions near the front end of the top plate surface of the casing 11.

The door opening driving portions 54, 55 are strong for the left door 21 and the right door 22, respectively. A door opening device that performs a door opening operation in a systematic manner. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet, thereby pressing the upper side of the left side door 21 and the right door 22 toward the front side of the open side end portion, thereby causing the left door 21 and the right door. 22 mandatory automatic opening.

As shown in FIG. 61, one of the door opening operation portions 551 is disposed at the lower right position of the left door 21, and the other door opening operation portion 552 is disposed at the lower left position of the right door 22. The door opening operation portion 551 is disposed inside the glass front surface plate 21A of the left door 21, and the door opening operation portion 552 is disposed inside the glass front surface plate 22A of the right door 22.

Further, inside the front surface plate 21A of the left door 21, a capacitance type control operation portion 650 for performing a touch operation from the surface of the front surface plate 21A by a user's finger is provided. To operate the refrigerator. The control operation unit 650 is disposed at a position above the door opening operation unit 551 in the left door 21.

The control operation unit 650 is provided with, for example, an infrared light receiving unit for detecting an environmental state around the refrigerator; a control button (control switch) 650CS and a return button (return switch) 650HS; and detecting the return button 650HS The LED display lamp that displays the operation button name, the cooling function name, the cooling intensity, and the like is touched and penetrated; the 7-segment LED display device that displays the change value such as the temperature value.

64(a) and 64(b) show examples of the configuration of the substrate 553 of the door opening operation unit 551 shown in Fig. 61. 65 is a view showing the proximity sensor 560 and the guard electrode 570 disposed on the substrate 553 of the door opening operation unit 551 shown in FIGS. 64(a) and 64(b). FIG. 66 is an exploded perspective view showing a configuration example of the door opening operation unit 551.

The door opening operation portion 551 shown in FIG. 61 has the same configuration as the door opening operation portion 552, but has a bilaterally symmetrical shape. 64(a) and 64(b) show examples of the shape of the substrate 553 of the door opening operation unit 551. However, the door opening operation unit 552 and the door opening operation unit 551 have substantially the same shape. Therefore, reference is made to FIG. 64(a) and FIG. 64(b) to 66, the substrate 553 of the door opening operation unit 551 will be described as a representative.

First, referring to Fig. 66, the door opening operation unit 551 includes a substrate assembly 500M, a plastic storage space member 585 called alum for housing the substrate assembly 500M, and a plastic cover member 590. In the back surface 585R of the plastic storage space member 585, it is preferable to adhere a metal body, for example, an aluminum foil. A metal body 591 such as an aluminum foil is adhered to the inner surface of the plastic cover member 590. Thereby, electromagnetic waves generated on the body side of the refrigerator 1 do not affect the side of the substrate assembly 500M.

The substrate assembly 500M includes a plastic shield plate 599, a substrate 553, an operation label 597, and an LED substrate 598 on which the display LED 557 is mounted. The substrate 553 is an electrostatic touch switch substrate and is fixed to the front surface side of the shielding plate 599. On the front surface side of the substrate 553, an operation label 597 is disposed. An LED substrate 598 for display is fixed to the back side of the shielding plate 599. A plurality of LEDs 577 are mounted on the LED substrate 598.

Left and right slits 574, 575 are formed at positions corresponding to the operation label 597 of the substrate 553. The substrate assembly 500M is housed in the housing space member 585 via the opening portion 586 which is a rectangular insertion opening of the housing space member 585. The opening portion 586 of the accommodation space member 585 is covered by the cover member 590.

As shown in FIG. 64(a) and FIG. 65, the substrate 553 of the door opening operation portion 551 is opened. The rectangle 553 has a surface 553A as shown in Fig. 64 (a) and a back surface 553B shown in Fig. 64 (b). On the substrate 553, a mounting portion 571 of an electronic component and an arrangement portion 572 of the proximity sensor 560 and the guard electrode 570 are provided. The substrate 553 of the door opening operation portion 551 and the substrate 553 of the door opening operation portion 552 shown in Fig. 1 are preferably bilaterally symmetrical, and a common component can be employed.

The mounting portion 571 of the electronic component on the side of the back surface 553B shown in FIG. 64(b) has a first step portion 553M and a second step portion 553N at the lower end portion. The lower end portion of the mounting portion 571 of the electronic component on the side of the back surface 553B is formed in a stepped shape.

Further, in the electronic component mounting portion 571 on the side of the back surface 553B, two connector parts CC1 and CC2 and electronic components such as a microcomputer (not shown) are mounted. The connector part CC1 is disposed in the first step portion 553M, and the connector part CC2 is disposed in the second step portion 553N.

That is, the connector part CC1 and the connector part CC2 are not arranged laterally in the horizontal direction, and the position where the connector part CC1 is attached to the back surface 553B of the substrate 553 is compared with the position where the connector part CC2 is attached to the back surface 553B of the substrate 553, in the Z The direction (up and down direction) is located at the lower side. The connector component CC1 is disposed along the first step portion 553M, and the connector component CC2 is disposed along the second step portion 553N.

As a result, the positions of the connector parts CC1 and CC2 are shifted in the vertical direction. Therefore, when the connector parts CC1 and CC2 are removed or attached during maintenance, it is easy to attach and detach using a tool.

Moreover, since the positions of the connector parts CC1, CC2 are in the up and down direction Since it is staggered, water due to dew condensation easily flows between the connector parts CC1 and CC2, so that water due to dew condensation can be prevented from being stored in the connector parts CC1 and CC2. Further, since the connector parts CC1 and CC2 are separated from the back surface of the substrate, even when water is stored in the housing portion, the connector parts CC1 and CC2 do not get water.

In the mounting portion 571 of the electronic component on the side of the back surface 553B of the substrate 553, two connector parts CC1 and CC2 and electronic components (not shown) are mounted, and electronic components are not mounted on the surface 553A of the substrate 553. Examples of the electronic component include a noise removing capacitor, a signal processing capacitor, a transistor, a microcomputer, and the like. Since the electronic component is disposed on the side of the back surface 553B instead of the surface 553A of the substrate 553 as described above, the inner surface of the operation label 597 is not affected by the electronic component but can be opposed to the surface of the substrate 553 as shown in FIG. 553A dense grounding configuration.

Further, although two connector parts CC1 and CC2 are disposed in the mounting portion 571 of the electronic component on the side of the back surface 553B of the substrate 553, the connector parts CC1 and CC2 are separated from the proximity sensor 560 and the guard electrode 570. The ground configuration prevents the noise from the connector parts CC1, CC2 from affecting the proximity sensor 560 and the guard electrode 570.

In the arrangement portion 572 on the surface 553A side of the substrate 533 shown in FIG. 64(a), the proximity sensor 560 as the first electrode, the guard electrode 570 as the third electrode, and the intermediate portion as the second electrode are disposed. 589. The proximity sensor 560 is located at the center of the configuration portion 572, and the guard electrode 570 is located at the configuration portion 572. The outermost side. The intermediate portion portion 589 is disposed between the proximity sensor 560 and the guard electrode 570. The proximity sensor 560, the guard electrode 570, and the intermediate portion portion 589 are metal electrodes, but are electrically insulated from each other. The intermediate portion portion 589 as the second electrode has a function of assisting the proximity sensor 560 as a proximity sensor. The guard electrode 570 performs a change in the detection effective range of the proximity sensor 560. The proximity sensor 560 does not include a plurality of electrodes, but includes one rectangular electrode. Thereby, a shape in which the user can easily perform a touch operation by a finger can be employed.

Further, as shown in FIG. 64(b), a mesh-shaped ground pattern 573 as a fourth electrode is disposed on the back surface 553B of the substrate 553 corresponding to the arrangement portion 572. Thereby, the ground pattern 573 prevents the noise from the refrigerator body from affecting the electromagnetic field generated by the proximity sensor 560 and the electromagnetic field generated by the guard electrode 570.

As shown in FIG. 64(a) and FIG. 65, a through hole 560C is formed in the center of the proximity sensor 560. On the through hole 560C, as shown in FIG. 64(b), a wire pattern 560H is connected. The wire pattern 560H is connected to the through hole 560C via a portion of the joint portion 560A. The wire pattern 560H is disposed via a portion other than the slits 574 and 575, that is, a back side portion of the coupling portion 560A. This connecting portion 560A will be described later.

The user's action of pressing (contacting) the proximity sensor 560 with a finger is generally performed toward the center of the proximity sensor 560, so that the through hole 560C is formed in the middle of the proximity sensor 560 for the through hole 560C. s position.

The position in which the through hole 560C is formed in the middle of the proximity sensor 560 is based on the following reason. That is, in the proximity sensor 560, the through hole 560C is formed. The central area has the highest sensitivity compared to other areas. Thereby, the center of the proximity switch 560 having the through hole 560C is pressed by the user's finger to enable the finger to contact the sensitivity optimum.

The proximity sensor 560 shown in FIGS. 64(a), 64(b) and 65 is an electrode for electrostatic touch (contact), and is a capacitive detecting component, and the capacitive detecting component For detecting the approach of the human body or the object in the front (front surface) direction of the left door 21 and the right door 22 shown in FIGS. 62 and 63, for example, within about 100 mm. The proximity sensor 560 detects the proximity of the finger on a portion of the user's body, specifically, for example, when the finger is approaching. The proximity sensor 560 is a capacitive touch sensor, but a mutual capacitance type touch sensor or a self capacitance type touch sensor can be used.

In the mutual capacitance method, one transmitting electrode and one receiving electrode are included, and when a current is supplied to the transmitting electrode, an electromagnetic field is generated, and the receiving electrode receives the electromagnetic field. For example, when the finger of the human body approaches to the detection area of the proximity sensor 560, a part of the electromagnetic field is absorbed and received by the receiving electrode, so the amount of detected energy is reduced, whereby the proximity sensor 560 can detect The proximity of the finger was measured.

In the self-capacitance method, one electrode having a stray capacitance (proximity sensor 560) is required. The stray capacitance of the electrode (proximity sensor 560) is affected by the parasitic capacitance between the electrode (proximity sensor 560) and its surrounding electrical conductor (the finger of the human body). When the finger of the human body approaches to the proximity sensor 560, the value of the stray capacitance increases due to the parasitic capacitance, and by measuring the increased stray capacitance, the proximity sensor 560 can detect the proximity of the finger. .

As illustrated in FIGS. 64(a), 64(b) and 65, the proximity sensor 560 is, for example, a rectangular switch that is formed long in the longitudinal direction, around the proximity of the sensor 560 to surround the electrode. The slits 574, 575 are formed in a manner. That is, the slits 574 and 575 are formed along the Z direction so as to surround the periphery of the proximity sensor 560. Thereby, the position of the proximity sensor 560 can be easily known by providing the slits 574 and 575. As shown in FIG. 65, the slits 574 and 575 are covered with, for example, a transparent film body 576. On the transparent film body 576, a plurality of LEDs 577, which are light-emitting elements that function as illumination devices, are disposed at intervals.

As shown in FIG. 65, among the plurality of LEDs 577, four LEDs 577 corresponding to the four corner portions 576R of the slits 574 and 575 are disposed at positions outside the slits 574 and 575. Thereby, the illumination light generated by the four LEDs 577 corresponding to the four corner portions 576R can illuminate the slits 574 and 575 without causing a shadow.

As shown in FIG. 65, one end portion of the proximity sensor 560 is coupled to the arrangement portion 572 by the connection portion 560A, and the other end portion of the proximity sensor 560 is coupled to the arrangement portion 572 by the connection portion 560B. The connecting portions 560A and 560B are connected so as to connect the proximity sensor 560 to the peripheral portion 589 which is a peripheral portion thereof, and are also referred to as a "bridge portion". The connection portions 560A and 560B are provided at positions other than the portion where the LED 577 is disposed, away from the portion where the LED 577 is disposed. Thereby, the connecting portions 560A, 560B do not interfere with the illumination light of the LED 577.

A through hole 560C for electrical connection is formed in a central portion of the proximity sensor 560. The reason why the through hole 560C is formed in the central portion of the proximity sensor 560 in this manner It is to be noted that, as already explained, the portion of the region of the proximity sensor 560 provided with the through hole 560C has higher detection sensitivity than the other portion of the region. Since the portion of the area where the user's finger approaches and contacts is the central portion of the proximity sensor 560, the through hole 560C is disposed in the central portion of the proximity sensor 560.

Next, the guard electrode 570 shown in FIGS. 64(a), 64(b) and 65 will be described.

The guard electrode 570 is formed in a rectangular frame shape in the arrangement portion 572 around the proximity of the sensor 560 and the intermediate portion 589. The guard electrode 570 is a metal body and includes a pair of short side electrode portions 570A and a pair of long side electrode portions 570B. The guard electrode 570 generates an electromagnetic field that is opposite to the electromagnetic field generated by the proximity sensor 560.

Thereby, as shown in FIG. 62 and FIG. 63, the electromagnetic field 560P generated by the proximity sensor 560 is suppressed from expanding by the electromagnetic field in the opposite direction generated by the guard electrode 570. Therefore, the electromagnetic field generated by the guard electrode 570 suppresses the spread of the electromagnetic field 560P generated by the proximity sensor 560, whereby the guard electrode 570 functions as an effective range changing unit of the detection range, and the effective range of the detection range The change component changes the effective range of the human body detection range.

The guard electrode 570 narrowly changes the detection range of the proximity sensor 560 when detecting the approach of the human body, for example, the finger, thereby changing the effective range of the detection range of the proximity sensor 560. Specifically, the guard electrode 570 changes the effective range of the detection range of the proximity sensor 560. As a result, as shown in FIG. 62, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 551 of the left door 21 is only guide It is directed to the front direction of the proximity sensor 560. Similarly, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 552 of the right door 22 is guided only to the front direction of the proximity sensor 560.

Therefore, as shown in FIG. 62, the electromagnetic field 560P generated by the proximity sensor 560 contracts so as not to expand in the X direction which is the left-right direction.

Further, as shown in FIG. 63, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 551 of the left door 21 is guided only to the front direction of the proximity sensor 560. Similarly, the electromagnetic field 560P generated by the proximity sensor 560 of the door opening operation portion 552 of the right door 22 is guided only to the front direction of the proximity sensor 560. Therefore, in FIG. 63, the electromagnetic field 560P generated by the proximity sensor 560 is contracted so as not to expand in the Z direction which is the vertical direction.

That is, the electromagnetic field 560P of the proximity sensor 560 shown in FIG. 62 and FIG. 63 represents the effective range of the human body detection range, and the effective range of the human body detection range is equivalent to the direction different from the front of the proximity sensor 560. The range (the range that extends up and down, left and right) is different.

67 is a block diagram showing electrical connection between the control unit 556, the door opening operation units 551 and 552, and the door opening drive units 54, 55 as the door opening device.

As shown in FIG. 67, the control unit 556 is electrically connected to the proximity sensor 560 of the door opening operation portions 551 and 552, the guard electrode 570, the door opening drive units 54, 55, and a plurality of LEDs 577 as illumination devices.

The proximity sensor 560 is maintained in the "high sensitivity" state by the control of the control unit 556. When the finger enters the detection area of the proximity sensor 560, that is, FIG. 62 and At the electromagnetic field 560P shown in FIG. 63, the control unit 556 of FIG. 67 receives the signal SG from the proximity sensor 560 that the finger approaches the proximity sensor 560.

Further, when receiving the signal SG from the proximity sensor 560, the control unit 556 of FIG. 67 determines that the finger is approaching with respect to the proximity sensor 560, thereby stopping the energization of the guard electrode 570, and the proximity sensing is performed. The sensitivity of the device 560 is reduced from "high sensitivity" to "low sensitivity". Further, when the control unit 556 receives the signal SG from the proximity sensor 560, the control unit 556 lights the LED 577 to illuminate the periphery of the proximity switch 560, whereby the position of the proximity switch 560 is made by illumination. Appears so that the user can visually confirm the position of the proximity switch 560.

And, when the finger comes into contact with the proximity sensor 560 from the state close to the proximity of the sensor 560, the proximity sensor 560 functions as a contact switch, and the proximity sensor 560 sends the finger to the control portion 556 that the finger has come into contact. The contact signal SH of the sensor 560. Thereby, the control unit 556 can cause the proximity sensor 560 to function as a contact sensor, and for example, the door opening operation of the left door 21 is enabled, and the control unit 56 causes the door opening drive unit 54 to operate to actually perform the left door 21 Opening the door. The operational procedure described is also the same for the right door 22.

Thereby, the user can confirm and touch the position of the proximity switch 560 disposed inside the glass surface of the left door 21 or the right door 22 with the aid of the illumination of the LED 577, thereby opening the left door 21 or the right door 22.

As described above, the control unit 556 switches the sensitivity of the proximity sensor 560 from "high sensitivity" when the finger approaches, to "low sensitivity", whereby the proximity sensor 560 functions as a contact sensor. When the finger approaches to the proximity sensor 560 When the control unit 556 functions as the "proximity sensor", the control unit 556 sets the sensitivity of the proximity sensor 560 to "large", thereby functioning as a "proximity sensor". It is "effective". Therefore, since the control unit 556 does not function as the "contact sensor", the proximity sensor 560 opens the door to the left door 21 and the right door 22 which are the original functions of the door opening operation portions 551 and 552. Operation) is "invalid".

As described above, when the user's finger approaches the proximity sensor 560 and the finger enters the electromagnetic field 560P of the sensor 560 that is within the effective range of the human body detection range, the proximity sensor 560 notifies the proximity of the finger to the control. Department 556. When the proximity sensor 560 notifies the control unit 556 of the approach of the finger, the control unit 556 switches the sensitivity of the proximity sensor 560 from "large" to "small". Further, the control unit 556 causes the lighting display of the proximity sensor 560 to be in the activated state from the off state, and the position of the proximity sensor 560 can be clearly indicated by the LED 577. Therefore, the user can visually confirm the position of the proximity sensor 560 and reliably touch the proximity sensor 560 with the finger. The control unit 56 causes the proximity sensor 560 to function as a "contact sensor" which is the original function. Therefore, by touching the proximity sensor 560 with a finger, the opening operation (opening operation) of the left door 21 or the right door 22 becomes "effective".

The opening operation (opening operation) of the left door 21 is the same as the opening operation (opening operation) of the right door 22, and therefore the description thereof will be omitted.

As shown in FIG. 64(a), FIG. 64(b) and FIG. 65, by arranging the guard electrode 570 around the proximity sensor 560, the effective range of the human body detection range of the proximity sensor 560, that is, the electromagnetic field 560P is The front direction of the left door 21 and the right door 22 (front The square direction), for example, detects the proximity of a human hand or finger within a range of about 100 mm. At this time, the effective range of the human body detection range of the proximity sensor 560, that is, the electromagnetic field 560P is restricted by the guard electrode 570 so as not to expand in the up and down direction and the left and right direction.

As shown in FIG. 62, by extending the effective range of the human body detection range of the proximity sensor 560 in the left-right direction (X direction), as shown in FIG. 62, when the left door 21 is to be along the arrow 21M When the illustrated trajectory is opened and the finger approaches the proximity sensor 560 of the left door 21, the proximity sensor 560 of the closed right door 22 can be prevented from detecting the finger. Similarly, when the right door 22 is to be opened along the trajectory shown by the arrow 22M to bring the finger close to the proximity sensor 560 of the right door 22, the proximity sensor 560 of the closed left door 21 can be prevented from detecting the finger.

Therefore, the effective range of the human body detection range of the proximity sensor 560 of the right door 22, that is, the electromagnetic field 560P does not enter the trajectory when the left door 21 as the moving member is opened. Similarly, the effective range of the human body detection range of the proximity sensor 560 of the left door 21, that is, the electromagnetic field 560P does not enter the trajectory when the right door 22 as the moving member is opened.

Thereby, when the left door 21 or the right door 22 is opened, the proximity sensor 560 of the right door 22 or the left door 21 on the side that is not opened and closed can be prevented from inadvertently erroneously detecting the user's finger or the left door 21 or the right door 22.

Further, as shown in FIG. 63, by extending the effective range of the human body detection range of the proximity sensor 560 in the up and down direction (Z direction), the pull type door as the moving member is extracted in the arrow direction. At 2300, the effective range of the human body detection range of the proximity sensor 560 of the left door 21 is the electromagnetic field 560P and the right door 22 The effective range of the human body detection range of the proximity sensor 560, that is, the electromagnetic field 560P does not enter the trajectory when the pull-out door 23 is opened.

Thereby, when the pull-out door 23 is opened, the proximity sensor 560 of the left door 21 and the proximity sensor 560 of the right door 22 can be prevented from inadvertently detecting the user's finger or the pull-out door 23 inadvertently.

64(a) and the guard electrode 570 shown in FIG. 65, as described above, the guard electrode 570 is a metal body and includes a pair of short side electrode portions 570A and a pair of long side electrode portions 570B. For example, when moisture adheres to the front surface plate 21A of the left door 21 shown in FIG. 61, and the moisture adheres to the front surface plate 21A at the position of the guard electrode 570, when the guard electrode 570 detects a change in electrostatic capacitance due to moisture, The control unit 556 shown in FIG. 67 disables the door opening operation of the door opening drive units (door opening devices) 54 and 55 realized by the proximity sensor 560.

Specifically, for example, when the user wipes the surface of the front surface plate 21A of the left door 21 or the front surface plate 22A of the right door 22 with a wet towel, if the guard electrode 570 detects moisture, even if it is close to the sensor 560 The wetted towel is detected to be in an activated state, and the control unit 556 shown in FIG. 67 also sets the door opening operation of the door opening drive units (door opening devices) 54 and 55 based on the proximity sensor 560 to "invalid" to avoid The left door 21 or the right door 22 is free to open. Thereby, the left door 21 or the right door 22 is prevented from being inadvertently opened.

Further, when the user touches the proximity sensor 560 after the user touches the guard electrode 570 with a finger, the control unit 556 sets the door opening operation of the door opening drive units (door opening devices) 54 and 55 based on the proximity sensor 560 to " invalid". Further, the control unit 556 When the user touches the proximity sensor 560 while touching the guard electrode 570 with a finger, the door opening operation of the door opening drive units (door opening devices) 54 and 55 based on the proximity sensor 560 is set to "invalid".

Thereby, the case where the left door 21 or the right door 22 is inadvertently opened when the guard electrode 570 is erroneously detected to the human body is prevented.

As shown in FIG. 61, a control operation portion 650 is provided inside the front surface plate 21A of the left door 21, and a door opening operation portion 551 is provided at a lower portion of the control operation portion 650. Therefore, the short-side electrode portion 570A of the guard electrode 570 of the door opening operation portion 551 is disposed at a position between the control operation portion 650 and the proximity sensor 551 of the door opening operation portion 551. The short side electrode portion 570A is shown in FIGS. 64(a), 64(b) and 65.

Thereby, for example, when the user wipes the control operation portion 650 of the surface of the front surface plate 21A of the left door 21 with a wet towel, the water will drip along the front surface plate 21A to reach the guard electrode 570. At this time, if the short-side electrode portion 570A of the guard electrode 570 detects moisture, the control portion 556 shown in FIG. 67 will be based on proximity sensing even if the proximity sensor 560 senses a wet towel to be activated. The door opening operation of the door opening drive unit (door opening device) 54 realized by the device 560 is set to "invalid", thereby preventing the left door 21 from being freely opened. Thereby, the left door 21 is prevented from being inadvertently opened.

Further, the lateral electrode gap interval HF and the longitudinal electrode gap interval RF of the guard electrode 570 shown in FIG. 65 are larger than the width MF of the human body finger HT. The lateral electrode gap interval HF of the guard electrode 570 and the longitudinal electrode gap interval RF are preferably selected from the range of 15 mm to 75 mm. Thereby, when the user makes When the finger HT approaches and touches the proximity sensor 560, the finger HT can be prevented from inadvertently touching the guard electrode 570.

Moreover, the horizontal electrode gap interval HF of the guard electrode 570 and the longitudinal electrode gap interval RF are such that the protective electrode 570 is not touched even if the bent elbow of the human body is hit. The lateral electrode gap spacing HF and the longitudinal electrode gap spacing RF of the guard electrodes 570 can be selected, for example, in the range of 30 mm to 75 mm. By setting the size of the guard electrode 570 in this way, even if the user holds the pot or the dish or the like with both hands, the curved elbow is used instead of the finger to contact the proximity sensor 560 to open the left door 21 or the right door 22. In this case, it is also possible to prevent the elbow from simultaneously touching both the proximity sensor 560 and the guard electrode 570. Thereby, the user can open the left door 21 or the right door 22 whether with a finger or an elbow.

Next, an example of the storage structure of the substrate 553 in the left door 21 and the right door 22 will be described with reference to FIGS. 68(a) to 68(c). 68(a) to 68(c) are diagrams showing an example of a storage structure of the substrate 553 in the left door 21 and the right door 22. 68(a) is a front view of the left door 21 and the right door 22, and FIG. 68(b) is a perspective view showing a configuration of the inner end surface portion 21T (the inner end surface portion 22T of the right door 22) of the left door 21 showing the storage structure of the substrate 553. Fig. 68 (c) is a view showing an example of the cover member 590.

As shown in FIG. 68(a), in a state where the left door 21 and the right door 22 are closed, the inner end surface portion 21T of the left door 21 faces the inner end surface portion 22T of the right door 22. The rectangular opening portion 586 of the housing space member 585 is located at each of the inner end surface portions 21T, and the housing space member 585 of the substrate assembly 500M is located at the left door 21 and the right door 22 internal. The substrate assembly 500M is inserted into and housed in the housing space member 585 from the opening portion 586.

In the case where the substrate assembly 500M is inserted into and housed in the housing space member 585, as shown in FIG. 66, the arrangement portion 572 side of the substrate 553 is brought to the side of the cover member 590, and the electronic component is used. The mounting portion 571 is inserted into the lateral opening portion 586 and the mounting portion 571 side of the electronic component reaches the back side of the housing space member 585.

In this way, the proximity sensor 560 and the guard electrode 570 are disposed on the surface of the substrate 553, and the mounting portion 571 of the electronic component is provided on the back surface of the substrate 553, and the substrate 553 is held in the left door 21, and the electronic component is mounted. The portion 571 is located on the opposite side to the arrangement portion 572 of the substrate 553 located on the side of the insertion opening, that is, the opening portion 586.

When the substrate assembly 500M is inserted into the storage space member 585, the operator can visually check the position of the first step portion 553M and the second step portion 553N of the mounting portion 571 of the electronic component. Since the substrate assembly 500M is inserted into the housing space member 585, the substrate assembly 500M is prevented from being inserted in the wrong insertion direction.

The opening portion 586 is closed by the cover member 590 after the substrate assembly 500M is housed. On the inner surface of the cover member 590, a metal body 591 such as an aluminum foil tape or an iron plate is disposed. The metal body 591 is a changing member that limits the electromagnetic field that is close to the effective range of the human body detection range generated by the sensor 560 to change the effective range of the detection range of the proximity sensor 560. As a detection The metal body 591 of the surrounding effective range changing member is disposed between the left door 21 and the right door 22 which are adjacent moving members.

By disposing the metal body 591 on the cover member 590 as described above, the metal body 591 blocks the electromagnetic field between the left door 21 and the right door 22. Thus, the electromagnetic field of the proximity sensor 560 of the left door 21 and the electromagnetic field of the guard electrode 570 do not affect the electromagnetic field sides of the proximity sensor 560 and the guard electrode 570 of the right door 22. Moreover, the electromagnetic field of the proximity sensor 560 from the right door 22 and the electromagnetic field of the guard electrode 570 do not affect the electromagnetic field sides of the proximity sensor 560 and the guard electrode 570 of the left door 21.

Next, an operation example when the user opens, for example, the left door 21 will be described with reference to FIGS. 61 to 63 and 67.

When the user brings the finger closer to the proximity sensor 560 on the left door 21 side shown in FIG. 62 and FIG. 63, and enters the electromagnetic field 560P as the effective range of the human body detection range shown in FIGS. 62 and 63, the high sensitivity state is obtained. Proximity sensor 560 detects that the finger is approaching to proximity sensor 560. Thereby, the control unit 556 of FIG. 67 receives the signal SG indicating that the finger approaches the proximity sensor 560.

Further, the control unit 556 of FIG. 67 stops the energization of the guard electrode 570 based on the signal SG from the proximity sensor 560, and the control unit 556 changes the sensitivity of the proximity sensor 560 to be changed from "high sensitivity" to "high sensitivity". "Low sensitivity". Further, the control unit 556 lights the LED 577 to illuminate the proximity switch 560, thereby indicating the position of the proximity switch 560 so that the user can visually confirm the position of the proximity switch 560.

And, when the finger touches the proximity sensor 560, the low sensitivity is connected. The proximity sensor 560 functions as a touch switch (contact switch) for opening the left door 21, and transmits a contact signal SH that the finger has touched to the proximity sensor 560 to the control unit 556 of FIG. 67. Thereby, the control unit 556 activates the door opening operation of the left door 21, and the control unit 556 operates the door opening drive unit 54, so that the left door 21 can be opened.

In addition, the operation example when the user opens the right door 22 is the same as the operation example when the left door 21 is opened, and thus the description thereof is omitted.

As such, when the user touches the proximity sensor 560 functioning as a contact sensor with a finger, the control portion 556 can automatically open the left door 21 or the right door 22.

When the user only touches the proximity sensor 560, the control unit 556 causes the proximity sensor 560 to function as a touch sensor (contact sensor) to set the door opening operation of the left door 21 to "valid". This performs the door opening operation of the left door 21. The same is true for the right door 22.

Further, in the case where the user inadvertently touches both the proximity sensor 560 and the guard electrode 570 shown in FIGS. 64(a) and 64(b), the control portion 556 does not make the proximity sensor 560 a contact. When the sensor functions, the door opening operation of the left door 21 is set to "invalid", whereby the door opening operation of the left door 21 is not performed. Thereby, when the user, for example, the elbow or the like, inadvertently touches both the proximity sensor 560 and the guard electrode 570, the control unit 556 can set the door opening operation of the left door 21 to "invalid", thereby prohibiting the left door 21 Opening the door.

Further, in the case where both the proximity sensor 560 and the guard electrode 570 shown in FIGS. 64(a) and 64(b) are detected due to the adhesion of water droplets, the control portion 556 does not cause the proximity sensor. 560 functions as a contact sensor while the left door 21 The door opening operation is set to "invalid", whereby the door opening operation of the left door 21 is not performed. The prohibition of the door opening operation is the same for the right door 22.

Moreover, in the case of a single-open refrigerator rather than a split-type refrigerator, when a human body or an object comes to the side of the refrigerator, the proximity sensor of the door can be prevented from inadvertently detecting the human body or object.

Further, the proximity sensor 560 shown in FIGS. 64(a) and 64(b) detects the proximity of the user's finger HT, and the proximity sensor 560 serves as a finger to the user. The "static touch mode" in which the touch sensor for detecting the contact of the HT functions can be switched as follows.

As illustrated in FIGS. 64(a) and 64(b), the proximity sensor 560 as the first electrode and the intermediate portion 589 as the second electrode are connected to the microcomputer 599C of the control unit 556.

In the case of the switching mode, when the "proximity detection mode" is switched to the "electrostatic touch mode" and the "static touch mode" is switched to the "proximity detection mode".

When switching from the "proximity detection mode" to the "electrostatic touch mode", after the proximity sensor 560 detects the approach of the finger HT, the microcomputer 599C cuts off the proximity sensor 560 as the first electrode and as the second The internal connection of the intermediate portion 589 of the electrode is performed only by the proximity sensor 560 as an electrostatic touch sensor in the "electrostatic touch mode".

On the contrary, when switching from "static touch mode" to "proximity detection mode", the finger HT leaves the proximity sensor 560 and passes through the "static touch mode". The microcomputer 599C performs internal connection of the proximity sensor 560 as the first electrode and the intermediate portion 589 as the second electrode when the predetermined time is, for example, 10 seconds, or when the door is reset to the door closed or the like. .

Next, Fig. 74 (a) and Fig. 74 (b) show an example in which the finger HT is brought into contact with Fig. 51 (a), Fig. 51 (b) and Fig. 52 in the 32nd embodiment. When the left side door 21 is opened as the proximity sensor 560 of the first electrode, switching between the proximity sensor 560 as the first electrode and the intermediate portion 589 as the second electrode is performed, and the control operation of the left door 21 is performed. The portion 650 and the proximity sensor 560 are illuminated. This case is also the same for the door 22 on the right side.

In FIG. 74(a), the user's finger is in a state in which it is not completely approached to the proximity sensor 560. In this state, in order to cause the proximity sensor 560 as an electrostatic switch to function as a "proximity sensor", the control unit 556 activates the proximity sensor 560 and sets the sensitivity of the proximity sensor 560 to " The sensitivity is increased, and the function as a "proximity sensor" is "effective". Further, the control unit 556 activates the intermediate portion 589 and sets the sensitivity of the intermediate portion 589 to "large" to increase the sensitivity, whereby the function as the "proximity sensor" is "valid".

At this time, the control unit 556 sets the function of the touch button 633 of the door opening operation unit 651, that is, the opening (opening operation) of the left door 21 to "invalid". Further, the control unit 556 sets the lighting display of the control operation unit 650 and the lighting display of the proximity sensor 560 to the "off state". And, the operation (opening operation) function of the control switch (control button) 650CS and the return switch (return button) 650HS of the control operation unit 650 is controlled. Becomes "invalid".

Next, a state in which the finger HT has approached to the proximity sensor 560 is shown in FIG. 74(b). In this state, the proximity sensor 560 detects the approach of the finger HT, so the control unit 556 sets the proximity sensor 560 to the activated state, and the sensitivity of the proximity sensor 560 as the "proximity sensor" is Switching "Large" to "Small" reduces the sensitivity to reduce the proximity sensor function, but sets the middle portion 589 to off.

Therefore, the control unit 556 causes the proximity sensor 560 to function as a contact sensor, and therefore the left door 21 is brought about by the finger HT touching the proximity sensor 560 functioning as a contact sensor from the surface of the front surface plate. The open operation (open door operation) function changes from "invalid" to "active".

Further, the control unit 556 causes the lighting display of the LED of the control operation unit 650 and the lighting display of the LED of the proximity sensor 560 to be in the "activated state", and is, for example, a weakly lit state as the lighting state of the two LEDs. That is, the LED 665 shown in FIG. 58 is weakly lit, thereby illuminating the control operation portion 650 from the back to emit light, and the LED 577 shown in FIG. 52 is weakly lit, thereby passing through the slits 574, 575. The proximity sensor 560 functioning as a contact sensor is illuminated from behind to illuminate it. At this time, it is preferable that the lighting display time is turned on for a predetermined time, for example, 10 seconds, when the finger HT does not touch the proximity sensor 560 functioning as a contact sensor during the 10-second period. It is also possible to turn off the LEDs 635 and 577 again.

The control unit 556 can make the control operation unit 650 shown in FIG. 58 The operation start time (lighting timing) of the LED 665 lighting is set to be different from the operation start time (lighting timing) for turning on the LED 577 of the proximity sensor 560 shown in FIG. 52, and the delay is predetermined. delay. In other words, the control unit 556 can change the timing of controlling the light emission pattern of the LED 665 of the operation unit 650 and the timing of the light emission pattern of the LED 577 of the proximity sensor 560. For example, the lighting timing of the LED 577 of the proximity sensor 560 may be earlier than the lighting timing of the LED 665 of the control operating portion 650. However, conversely, the lighting timing of the LED 665 of the control operation portion 650 is made earlier than the lighting timing of the LED 577 of the proximity sensor 560. By thus different lighting timings, the position of the control operation unit 650 and the position of the proximity sensor 560 and the intermediate portion 589 can be displayed differently from the user.

Then, the operation function of the control switch 650CS and the return switch 650HS of the control operation unit 650 is activated, and "invalid" is changed to "valid".

Next, a state in which the finger HT is brought into contact with the proximity sensor 560 functioning as a contact sensor is shown in FIG. 74(c). In this state, the control unit 556 maintains a state in which the sensitivity of the proximity sensor 560 as the "contact sensor" is "small". The control unit 556 activates the function of the proximity sensor 560 functioning as a contact sensor, that is, the opening operation (opening operation) function of the left door 21 is still "active". Further, as the lighting state of the lighting display of the LED of the proximity sensor 560, the control unit 556 changes the light emission pattern by the weak lighting, and sets it as normal lighting.

That is, the LED 665 shown in FIG. 58 performs normal lighting to illuminate the control operation portion 650 from the back to make it light, and the LED 577 shown in FIG. Light up through The slits 574, 575 illuminate the proximity sensor 560 functioning as a contact sensor from the back in a brighter manner to cause it to emit light. That is, when the finger HT in FIG. 74(c) is in contact, the amount of light displayed by the control operation portion 650 and the amount of light displayed by the proximity sensor 560 are increased from the weakly lit lamp to the normally lit lamp to be larger. The light amount is completely illuminated to illuminate, whereby the lighting display of the proximity sensor 560 becomes brighter. The control unit 556 also sets the lighting state of the LED of the control operation unit 650 to the normal lighting by the weak lighting.

Further, the operation function of the control button (control switch) 650CS and the return button (return switch) 650HS of the control operation unit 650 is activated to be "active", so that the operation can be performed.

Thereby, when the user touches the proximity sensor 560 with a finger and the door opening operation of the left door 21 is established, the LED 577 is changed from the weak lighting to the full lighting to increase the amount of light, so that the user can increase the amount of lighting by increasing the amount of lighting. Visually confirm the establishment of the door opening operation. Further, the user can more surely see the display of the control operation unit 650 and the display of the LED 577, and can improve the energy saving effect of power consumption.

As described above, in the case where the finger HT approaches the proximity sensor 560 as shown in FIG. 74(b) and the finger HT shown in FIG. 74(c) comes into contact with the touch button 633, the control portion 556 The amount of light at the time of lighting can be changed as described above to control the illumination of the operation unit 650 and the illumination of the proximity sensor 560.

Subsequently, a state in which the user's finger HT is separated from the proximity sensor 560 functioning as a contact sensor is shown in FIG. 74(d). In this state, the control unit 556 sets the input of the operation signal from the proximity sensor 560 to be effective, and enables The door opening drive unit 54 is actuated to thereby perform the door opening control of the corresponding left door 21. Thereby, the left door 21 can be automatically opened. Further, the control unit 556 sets the function of the proximity sensor 560 functioning as a contact sensor to "invalid".

Further, the control unit 556 maintains the "on state" of the lighting display of the control operation unit 650 and the lighting display of the LED 577 in the slits 574 and 575 of the proximity sensor 560 as indicated by the solid line. Further, the operation function of the control switch 650CS and the return switch 650HS of the control operation unit 650 is turned off, and "valid" is changed to "invalid".

As described above, the opening operation of the right door 22 using the door opening operation portion 652 of the right door 22 shown in Fig. 56 can be performed in the same manner as the opening operation of the left door 21 described with reference to Figs. 74(a) to 74(d).

Next, the principle in which the proximity sensor 560 detects the contact of the finger will be described with reference to FIG. FIG. 75 is a circuit diagram showing the principle in which the proximity sensor 560 detects the contact of the finger HT.

The contact detecting circuit 888 shown in FIG. 75 has a proximity sensor 560 as a contact sensor (Cx), a regulating capacitor (Cmod) 889, a clock generating source 890, and an IDAC (current output digital analog converter). 891, latch 892, timer 893, and (AND) circuit 894, and counter 895. The IDAC 891 causes each of the same current to flow through the proximity sensor (Cx) 560 and the adjustment capacitor (Cmod) 889 as a contact sensor in a pulse manner, thereby being in proximity as a contact sensor. The sensor (Cx) 560 and the adjustment capacitor (Cmod) 889 accumulate a small amount of charge one by one. Continue to accumulate charge until the proximity sensor 560 and the adjustment capacitor (Cmod) 889 act as contact sensors (Cx) The counter 895 counts the number of times of the pulse wave until the predetermined charge is accumulated in the adjustment capacitor (Cmod) 889 until the potential is the same.

When the finger HT touches the proximity sensor 560 as the contact sensor (Cx), the electrostatic capacitance of the proximity sensor (Cx) 560 as the contact sensor increases, and thus flows through and accumulates in the adjustment capacitor ( The charge in Cmod) 889 is small, and it takes time until the accumulation of charge in the adjustment capacitor (Cmod) 889 is completed. Therefore, the number of pulses of the pulse wave counted by the counter 895 is increased (slope is gentle), and as a result, the slope is The displacement will change. The presence or absence of the finger is determined by the difference in the displacement of the slope. In other words, when the number of pulses of the pulse wave counted by the counter 895 becomes a value exceeding the fixed threshold value compared with the normal number of counts (base count), the control unit 556 determines that the finger HT is touched. To the proximity sensor 560 as a contact sensor (Cx).

Next, a method of changing the sensitivity in the proximity sensor 560 as the contact sensor (Cx) touched by the finger HT will be described.

As a method of changing the sensitivity, when the current value of the IDAC 891 is reduced, if the amount of charge accumulated in the proximity sensor (Cx) 560 is the same, the charging end time becomes long and becomes gentle. If it is gentle, the sensitivity is increased when the judgment is made using the same threshold value.

In a state where the slope is gentle (the current value is small), when the state of the finger contact is detected by the state in which the finger is not in contact, the change in the slope becomes large, and it is easy to exceed the threshold value, so that the sensitivity is large. Moreover, in a state where the slope is not gentle (the current value is large), when the state of the finger contact is detected by the state in which the finger is not in contact, the change in the slope becomes Small, it is difficult to exceed the threshold, so the sensitivity is small.

In other words, by reducing the current value, it is possible to detect even if the contact is made only by the tip end of the finger, thereby improving the sensitivity, compared to the state detected when the fingertip is in contact with the fingertip. . Further, by reducing the threshold value, the sensitivity is also improved, but there is also a problem that noise is detected. Therefore, the sensitivity is changed by the sensitivity change method described above.

Next, Fig. 76 is a diagram showing the basic structure of the proximity sensor.

As shown in FIG. 76, the proximity sensor 560 and the copper gland 569 are located between the cladding layer 560R and the dielectric layer 560D, and will approach the electrostatic capacitance CP of the sensor 560 itself and the static electricity of the finger HT. The capacitance obtained by adding the capacitance CF is the electrostatic capacitance CX of the proximity sensor 560 when the finger is in contact.

In the electrostatic touch action of the finger HT to the proximity sensor 560, the change in the electrostatic capacitance CX of the proximity sensor 560 when the finger HT is touched is detected. Further, in the operation of detecting that the finger HT is approaching the proximity sensor 560, the change in the electrostatic capacitance CP of the proximity sensor 560 itself when the finger approaches is detected. At the approach of the finger, the proximity distance (sensitivity) is changed by changing the electrostatic capacitance CP of the proximity sensor 560 itself. When approaching, the change in the weak electrostatic capacitance CP caused by the approach of the finger is detected. The electrostatic capacitance CP is an electric field in a three-dimensional direction. When a finger is present in the electric field, it changes weakly, so that the electrostatic capacitance CX of the entire proximity sensor changes, so that the detection can be used to detect the finger.

Next, Fig. 77 is the first shown in Figs. 74(a) to 74(d). The electrode is a diagram in which the proximity sensor 560 functioning as a contact sensor and the intermediate portion 589 as the second electrode, the switching operation between the approach mode and the electrostatic touch mode.

As shown in FIG. 77, the first electrode, that is, the proximity sensor 560 functioning as a contact sensor and the intermediate portion 589 as a second electrode are connected to a multiplexer 556R. The multiplexer 556R can internally connect the proximity sensor 560 to the intermediate portion 589 or cancel the internal connection in accordance with an instruction from the microcomputer 556M of the control unit 556.

(1) When switching from the approach mode to the electrostatic touch mode

In the case where the switching operation from the approach mode to the electrostatic touch mode is performed, as shown in FIGS. 74(a) to 74(b), when the finger HT approaches to the proximity sensor 560, the proximity sensor 560 detects When the finger HT is pressed, the proximity mode is switched to the electrostatic touch mode. That is, according to the instruction of the microcomputer 556M of FIG. 77, the multiplexer 556R sets the proximity sensor 560 and the intermediate portion 589 from the internal connection state to the release state of the internal connection to cut off the proximity sensor 560 and the intermediate portion. 589 connection. Thereby, only the proximity sensor 560 is used as the electrostatic contact sensor to function, so that the intermediate portion portion 589 becomes closed without being used.

(2) When switching from electrostatic touch mode to proximity mode

Conversely, the case where the switching operation from the electrostatic touch mode to the approach mode is performed is, for example, 10 seconds after the electrostatic touch mode is applied, or the door is reset to the door closing or the like. At this time, according to the instruction of the microcomputer 556M, the multiplexer 556R can release the state in which the proximity sensor 560 is connected to the inside of the intermediate portion 589. The internal connection state is restored to connect the proximity sensor 560 with the intermediate portion portion 589.

Furthermore, reference is made to FIGS. 48 to 50. 48 to 50 show a modified example of the proximity detection effective range of the proximity sensor 560 as the first electrode and the intermediate portion 589 as the second electrode.

When only the proximity sensor 560 as the first electrode is used, the proximity detection effective range of the proximity sensor 560 is the range of the small circle HC1. Further, by using the intermediate portion 589 as the second electrode in addition to the proximity sensor 560, the proximity detection effective range of the proximity sensor 560 can expand the range from the small circle HC1 to the large circle HC2.

However, if the proximity detection effective range is to be expanded as such, the adjacent door 21 (or the door 22) as the moving member or the back side of the door is placed in the proximity detection effective range of the proximity sensor of the large circle HC2. The door of the PET bottle or the like may be reflected in the proximity detection effective range of the proximity sensor 560, thereby issuing an instruction to open the door, causing the door on the side not to be opened to inadvertently open.

Therefore, in order to change the proximity detection effective range of the proximity sensor 560, the changing means for the proximity detection effective range is provided with the components shown in FIGS. 78(a), 78(b) and 51(b). The ground pattern 573 as the fourth electrode and the guard electrode 570 as the third electrode shown in FIG. 51(a).

78(a) and 78(b) are diagrams for explaining changes in the proximity range in the proximity sensor 560 and the intermediate portion 589.

As shown in Fig. 78 (a) and Fig. 78 (b), as shown in Fig. 51 (b) A mesh-shaped ground pattern 573 as a fourth electrode is disposed on the back surface 553B of the substrate 553 corresponding to the arrangement portion 572. The ground pattern (mesh electrode) 573 covers the substrate 553 on the back side of the proximity sensor 560 and the intermediate portion 589. By setting the ground pattern 573 to the proximity sensor 560 at the same voltage, the electric field is not formed from the proximity sensor 560 and the intermediate portion 589 to the ground pattern 573. Thereby, the electric field range can be changed to remove the range that is not to be detected by the proximity sensor 560. The electric field from the ground pattern 573 generates an electric field only in the direction of the proximity sensor 560 and the intermediate portion 589, and cancels the electric field from the proximity sensor 560 and the intermediate portion 589 toward the ground pattern 573, thereby facing the back direction of the substrate 553. The electric field disappears (cancel).

Thereby, when the ground pattern 573 as the fourth electrode is disposed on the back surface of the substrate 553 as shown in FIG. 78(a), the proximity detection range DL1 of the proximity sensor 560 and the intermediate portion portion 589 can be made larger than that of FIG. The proximity detection range DL2 shown in (b) is large. The ground pattern 573 is a mesh metal shield electrode. When comparing FIGS. 78(a) and 78(b), the ground pattern 573 is arranged, and in FIG. 78(a), the electric field in the rear direction is reduced as shown in FIG. The range A or disappears.

Further, as shown in FIG. 51(a), by disposing the frame type guard electrode 570 on the substrate 553, and the guard electrode 570 surrounds the proximity sensor 560 and the intermediate portion portion 589, the electric field in the left and right direction is reduced. The range U shown. Thereby, as shown in FIGS. 48 to 50, the proximity detection effective range of the proximity sensor 560 can be changed from the large circle HC2 to the small shape HC3, and as shown in FIG. 50, the range V is reduced in the up and down direction. .

Thereby, the proximity detection effective range of the proximity sensor 560 is as shown by the small shape HC3 of FIG. 50, and only the proximity of the proximity detection range DL1 of the proximity sensor 560 and the intermediate portion 589 is extended as a whole, thereby Proximity detection is possible over long distances. Further, by providing the metal body 591 shown in FIG. 53, the electric field is also activated, so that the proximity detection effective range of the proximity sensor does not exceed the metal body 591, and the proximity sensor can be further prevented. False detection.

[Thirty-third embodiment]

Fig. 69 is a front elevational view showing the refrigerator 1 of the thirty-third embodiment.

As shown in FIG. 69, the refrigerator 1 has a refrigerating compartment 12, a vegetable compartment 13, a switching compartment 14, a freezing compartment 15, and an ice making compartment 16. A pair of left door 21 and right door 22 cover the front surface opening of the refrigerating compartment 12. Therefore, the left door 21 and the right door 22 are attached so that the upper end of the left end portion and the right end portion of the casing 11 of the refrigerator main body are opened and closed by the hinge portion. In this example, the width of the right door 22 is larger than the width of the left door 21.

Each of the left door 21 and the right door 22 is a heat insulating structural member, that is, an opening portion of a flat inner plate that is open at the front surface, and a front surface plate 21A and 22A made of glass that is colored and transparent, and is disposed in the inner cavity portion. A vacuum heat insulating material is disposed in a cavity portion that is not completely filled with the vacuum heat insulating material, and is provided with a polyurethane heat insulating material (hereinafter also referred to simply as a urethane heat insulating material) or a preformed one. Solid insulation (eg EPC).

As shown in FIG. 69, one operation detecting unit 701 is provided, for example, at a lower position of the front surface plate 22A of the right door 22 having a larger size than the left door 21.

The door opening driving portions 54, 55 are near the front end of the top plate surface of the casing 11. The left and right portions are respectively provided at positions corresponding to the vicinity of the open side end portions of the left door 21 and the right door 22.

The door opening and driving units 54 and 55 are door opening and closing devices (door opening devices) for forcibly opening the left door 21 and the right door 22, respectively. The door opening drive units 54 and 55 push the plungers 54A and 55A forward by the electromagnet, thereby pressing the upper side of the left side door 21 and the right door 22 toward the front side of the open side end portion, thereby causing the left door 21 and the right door. 22 mandatory automatic opening.

FIG. 70 is a cross-sectional view showing a configuration example of the operation detecting unit 701 on the ZR-ZR line shown in FIG. 69.

As shown in FIG. 70, the operation detecting unit 701 shown in FIG. 69 is provided with a sheet material 721 for shielding on the inner surface side of the glass front surface plate 22A by printing or the like. This sheet member 721 is disposed to prevent the inside from being seen through the front surface plate 22A.

The first substrate 731 and the second substrate 732 are disposed on the inner surface side of the front surface plate 22A. The first substrate 731 is spaced apart from the second substrate 732 and arranged in parallel with respect to the front surface plate 22A.

For example, four capacitive proximity sensors 711, 712, 713, and 714 as non-contact sensors are disposed on the surface of the first substrate 631, and a connector 729 is disposed on the back surface. The proximity sensors 711, 712, 713, and 714 are disposed on the first substrate 631 in the right door 22, for example, two-dimensionally (on a plane).

As shown in FIG. 69, the proximity sensors 711, 712, 713, and 714 are respectively disposed at positions of the corner portions of the square, the proximity sensor 711 is disposed at the upper left corner, and the proximity sensor 712 is disposed at the upper right corner. The proximity sensor 713 is arranged in the lower right The corners are, and the proximity sensor 714 is disposed at the lower left corner.

The proximity sensors 711, 712, 713, and 714 can of course detect the state of the finger movement of the user (human body) in a non-contact manner, and can detect the palm of the user (human body) in a non-contact manner ( The state of the palm, the back of the hand, or the side or elbow of the hand. Thereby, the left door 21 or the right door 22 is opened by driving the door opening drive unit 54 or the door opening drive unit 55 to operate.

The proximity sensors 711, 712, 713, and 714 are electrodes for electrostatic touch (contact), and are, for example, electrostatic capacitance type detecting members for the front surface (front surface) of the right door 22 In the direction, the approach of the user's hand or elbow or the like is detected in a non-contact manner via the front surface plate 22A. The proximity sensors 711 to 714 detect the approach when a part of the user's human body, specifically, for example, the palm (palm, back of the hand) or the side or elbow of the hand approaches. The proximity sensors 711 to 714 are electrostatic capacitance type touch sensors, and a mutual capacitance type touch sensor or a self capacitance type touch sensor can be used.

As shown in FIG. 70, a plurality of LEDs 735 and a connector 736 are disposed on the surface of the second substrate 732. The connector 736 of the second substrate 732 is connected to the connector 729 of the first substrate 731 by the trunk wire harness 728.

Each of the LEDs 735 is disposed at a position corresponding to each of the holes 734 of the first substrate 731. Thereby, the light generated by each of the LEDs 635 can illuminate the proximity sensors 711 to 714 from behind through the respective holes 734. Thereby, even in a dim environment, the user can visually confirm the positions of the proximity sensors 711 to 714 through the front surface plate 22A and the sheet member 721.

71 is a block diagram showing electrical connection between the control unit 756, the operation detecting unit 701, and the door opening driving units 54, 55 as the door opening device.

As shown in FIG. 71, the control unit 756 is electrically connected to the operation detecting unit 701, the door opening driving units 54, 55, the plurality of LEDs 735, and the distance measuring unit 777.

In the refrigerator 1 shown in FIG. 69, when the user opens the left door 21 (or the right door 22) of the refrigerator 1, if the user is in a dim environment, the user has to use the finger to perform the operation detecting portion 701 in a non-contact manner. During the operation, it is difficult to see the positions of the proximity sensors 711 to 714 of the operation detecting unit 701. As described above, in order to improve the difficulty in operating the proximity sensors 711 to 714, the LEDs 735 are mounted on the back surfaces of the proximity sensors 711 to 714, respectively.

When the proximity sensors 711-714 detect the proximity of the finger, or even the palm (palm, back) or the side or elbow of the hand in a predetermined specific order, the control portion 756 is from each proximity sensor 711, 712, 713 and 714 receive a signal indicating that the person is approaching, and the control unit 756 causes the left door 21 or the right door 22 to open the door by the door opening drive unit 54 or the door opening drive unit 55 as the door opening device.

At this time, the control unit 756 receives a signal informing that a person is approaching from each of the proximity sensors 711, 712, 713, and 714, and therefore the LED 735 can be turned on according to an instruction from the control unit 756.

Thereby, the user can visually confirm the positions of the proximity sensors 711, 712, 713, and 714 of the operation detecting portion 701 even in a dim environment, so that the proximity sensors 711, 712 can be easily operated. , 713, 714, so that the left door 21 (or the right door 22) can be opened.

As described above, the operation detecting unit 701 of the 33rd embodiment does not perform human operation detection by contact detection, but opens the left door 21 or the right door 22 by non-contact detection. When the door is opened by contact detection, the finger must touch the contact detecting portion, and it is difficult to open the door in the state where the user holds some items, or the elbow must be used to open the door. On the other hand, the operation detecting unit 701 employs a non-contact operation in which it is not necessary to touch the contact detecting portion, whereby the opening operation of the door which the user does not intend due to the user's motion or the change in the surrounding environment can be suppressed.

The proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 shown in FIG. 69 and FIG. 70 are used by the user to make a finger, or even a palm (palm, back of the hand) or a side or elbow of the hand. The moving action is a so-called gesture, so that the left door 21 or the right door 22 can be opened in a non-contact manner, and the non-contact operation of the contact detecting portion is not required to be touched, thereby suppressing the change of the user's motion or the surrounding environment. The user does not intend to open the door.

As shown in FIG. 69, each of the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 is two-dimensionally arranged in the vertical direction (VT direction) and the horizontal direction (HL direction) at the same interval. Preferably, they are respectively located at four corners of the square. By the user's hand or elbow or the like, the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 are moved in a non-contact manner in a specific order (up and down direction, left and right direction, oblique direction). Thus, the control unit 756 of FIG. 71 recognizes the movement of the finger or even the side or elbow of the palm or hand detected by each of the proximity sensors 711, 712, 713, 714. Thereby, the control unit 756 functions to open the door opening drive unit 54 of the left door 21 to open the left door 21, for example, or the control unit 756 is driven. The door opening drive unit 55 of the right door 22 opens the function of the right door 22.

The operation detecting unit 701 can be attached to any one of the partitions of the right door 22. Thereby, the operation detecting portion 701 can be disposed regardless of the presence or absence of the glass front surface plate, and regardless of the novel design of the door or various operation displays.

Since each of the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 is provided on one first substrate 731, manufacturing can be facilitated. Further, each of the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 may be provided not on one of the first substrates 731 but on a plurality of substrates. Thereby, the degree of freedom in the arrangement of the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 is further improved.

Next, an example of use of the refrigerator 1 will be described.

In the following description of the use case, the following will be described: in the state where the user holds the article with a finger of both hands, such as a dish or a pot, and the hands are unable to be lifted, the finger cannot be used and the contact is made by FIG. 69. The proximity sensors 711 to 714 are shown to operate, for example, the left door 21 (or the right door 22) to perform a door opening operation.

At this time, the part of the human body that can operate the proximity sensors 711 to 714 in a non-contact manner is a palm (palm, back of the hand) or a side or elbow of the hand.

As described above, when the user uses the palm or the side of the hand or the elbow or the like to cause the proximity sensors 711 to 714 to detect in a predetermined specific order, the control portion 756 can drive the door opening driving portion 54 of the left door 21, for example. The left door 21 is opened, or the control portion 756 can drive the door opening driving portion 55 of the right door 22 to open the right door 22.

72(a) and 72(b) show an example in which the user approaches the proximity sensors 711 to 714 in a predetermined specific order by an action (gesture) such as a side or an elbow of the palm or the hand. operating.

This particular sequence refers to a path in which the side or elbow of the user's palm or hand moves toward the proximity sensor of at least two of the proximity sensors 711-714, and the particular order is predetermined.

The specific sequence shown in FIG. 72(a) can be obtained by moving the side or elbow of the user's palm or hand along the first direction DD1 indicated by the arrow in the right direction. The two proximity sensors 711 and 712 sequentially detect the human body (side or elbow of the palm or hand), and are in the second direction (opposite direction) indicated by a left-direction arrow different from the first direction DD1. The movement of DD2, the two proximity sensors 712, 711 sequentially detect the human body (the side or elbow of the palm or hand).

At this time, the first direction DD1 and the second direction DD2 constitute the first specific direction F1, and the specific order of the first specific direction F1 instructs the control unit 756 to perform the function of opening the door of the left door 21 by the door opening drive unit 54, for example.

Another specific sequence shown in FIG. 72(b) can be obtained by the side or elbow of the palm or hand of the user along the first direction DD1 indicated by the arrow in the right direction. Moving, the two proximity sensors 711, 712 sequentially detect the human body (side or elbow of the palm or hand), and are in the third direction DD3 indicated by a downward direction arrow different from the first direction DD1. The two proximity sensors 712, 713 sequentially detect the human body (the side or elbow of the palm or hand).

At this time, the first direction DD1 and the third direction DD3 constitute the second specific party. In the specific order of the second specific direction F2 to the F2, for example, the control unit 756 is instructed to perform a so-called "quick freeze" function, which means that the storage compartment as the refrigerator 1 is, for example, as shown in FIG. The inside of the switching chamber 14 that switches the set temperature in the refrigerator is rapidly frozen. The "quick freezing" function refers to a function of rapidly freezing the temperature of the food by -1 ° C to -5 ° C to suppress cell damage during freezing and to maintain delicious taste.

As described above, the user performs the approach operation of at least two of the proximity sensors 711 to 714 in a predetermined specific order by the action (gesture) of the side or the elbow of the palm or the hand. Thereby, as a predetermined function, for example, the left door 21 or the right door 22 can be opened.

Thereby, even if the proximity sensors 711 to 714 are disposed in the left door 21 or the right door 22, it is possible to prevent the user from opening the left door 21 or the right door 22 just before passing through the refrigerator 1.

Moreover, FIGS. 73(a) to 73(d) are diagrams showing an example of performing a proximity operation on the proximity sensor in another predetermined specific order.

As exemplified in FIGS. 73(a) to 73(d), when the user uses the fingers of both hands to hold the disc or the pot and the like, and the hands are not able to be used, the fingers of both hands cannot be used for the approaching. When the proximity of the sensors 711 to 714 is performed, the proximity sensors 711 to 714 are detected in a predetermined specific order in a non-contact manner by using the palm (palm, back of the hand) or the side or elbow of the hand. In this way, the control unit 756 can also be instructed to perform any predetermined function.

For making the palm (palm, back of the hand) or the side or elbow of the hand Two or three or more of the up-down direction, the left-right direction, and the oblique direction can be used in any combination in the direction in which the potential moves.

For example, FIG. 73(a) shows a combination of the first direction (right direction) DD1 and the fourth direction (slanted downward direction) DD4, and FIG. 73(b) shows the fifth direction (downward direction) DD5 and the sixth direction ( Up direction) combination of DD6.

73(c) shows a combination of the third direction (lower direction) DD3 and the seventh direction (upward direction) DD7, and FIG. 73(d) shows the eighth direction (right direction) DD8 and the ninth direction (left direction). The combination of DD9.

The control unit 756 can perform various functions such as opening the left door 21 or opening the right door 22 by the combination of the gestures in the plurality of directions.

Further, in the illustrated example, the operation detecting unit 701 includes four proximity sensors 711, 712, 713, and 714. However, the operation detecting unit 701 may include two proximity sensors, three proximity sensors, and five or more proximity sensors. The proximity sensors can be arranged on the door in two dimensions (planar).

The refrigerator 1 includes two open and closed left doors 21 and 22, and front glass plates 21A and 22A are disposed on the front surface side of the left door 21 and the right door 22. However, the present invention is not limited thereto, and the front surface side of the left door 21 and the right door 22 may not be a glass plate but a metal plate such as a steel plate. Further, as the refrigerator, it is also possible to have one door of a single opening type.

The proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 are of a capacitive type. However, the present invention is not limited thereto, and a method of detecting a user's finger in a non-contact manner by infrared rays may be employed.

Further, in the refrigerator, for example, the distance measuring member 777 illustrated in FIGS. 69 and 71 may be disposed on the back side of the glass front surface plate 21A of the left door 21 or the back side of the glass front surface plate 22A of the right door 22, and the refrigerator. The frame, or the partition that divides each storage room, and the like.

The distance measuring unit 777 measures the distance from the refrigerator 1 to the human body of the user. For example, the distance of the human body measured by the distance measuring unit 777 may be changed depending on the size of the house in which the refrigerator is installed. When the refrigerator is installed in a wide house, the distance between the refrigerator 1 and the human body becomes large, and if the refrigerator is installed in a narrow house, the distance between the refrigerator 1 and the human body becomes small.

Therefore, based on the case where the distance to the human body measured by the distance measuring unit 777 is changed, the control unit 756 can be configured to be able to be used for the proximity sensors 711, 712, 713, and 714 as the non-contact sensors. The range in which the detection of the human body becomes effective is changed. That is, the sensitivity when the proximity sensors 711, 712, 713, and 714 are detected can be adjusted between the high sensitivity and the medium sensitivity.

Each of the proximity sensors 711, 712, 713, and 714 of the operation detecting unit 701 can be attached to, for example, the right door 22 of a steel plate having a normal structure without a glass front surface plate. By adopting such a configuration, the operation detecting portion 701 can be disposed at any position of the door.

The operation detecting portion 701 can be disposed inside the front surface plate 22A shown in FIG. 70 and inside the urethane heat insulating material. Thereby, the operation detecting unit 701 can be disposed at any position of the door.

The operation detecting unit 701 can be mounted on the edge of the right door 22 Glued end caps or under the end caps. Thereby, the operation detecting portion 701 can be disposed regardless of the presence or absence of the glass front surface plate, and regardless of the novel design of the door or the arrangement of various operation display portions.

The embodiments of the present invention have been described, but the embodiments are merely illustrative and are not intended to limit the scope of the invention. The present invention can be implemented in various other forms and can be combined with various embodiments without departing from the spirit and scope of the invention. The invention or its modifications are intended to be included within the scope and spirit of the invention and are included in the scope of the invention described herein.

Further, printing indicating the operation position or the like can be performed in accordance with the display of the LED. This printing is preferably translucent printing or the like in which LED light is transmitted.

1‧‧‧ refrigerator

11‧‧‧ refrigerator body

21‧‧‧Left door

21A, 22A‧‧‧ front surface plate

22‧‧‧right door

50‧‧‧Control Operations Department

51, 52‧‧‧Open Door Operation Department

51A, 52A‧‧‧Open door operation display

54, 55‧‧‧Open door drive department

61, 62‧‧‧Hands

Claims (85)

A refrigerator comprising: a refrigerator body having a front surface opening; a heat insulating door attached to an opening of a front surface of the refrigerator body; and a door opening device mounted to the refrigerator body to force the door Sexually open the door. The refrigerator according to claim 1, comprising: a control operation unit provided on the door for performing an operation of changing a cooling control content of the refrigerator; and a door opening operation unit disposed on the door a door opening operation for operating the door opening device; and a control unit that inputs an operation signal from the control operation portion and the door opening operation portion, performs a corresponding cooling control and a door opening control, and gives the door opening operation portion The portion of the door opening operation input is a part of the front surface plate of the door and is integrally connected to the front surface plate, and a different operation method is adopted for the operation of the control operation portion and the operation for the door opening operation portion. The refrigerator according to the second aspect of the invention, wherein the door opening operation portion includes a plurality of operation detecting portions provided on the door, and the operation detecting is outputted from the plurality of operation detecting portions to the control portion The control unit determines whether the operation detection signal from the plurality of operation detecting units is a predetermined operation, and determines that the door opening operation is performed when the predetermined operation is performed, and installs the door opening The door opening control is performed. The refrigerator according to claim 3, wherein the door opening operation portion includes a plurality of operation detecting portions disposed on the door, and the control portion is received in the plurality of operation detecting portions. If the operation detection signal is not received within the fixed time, the operation detection signal for the other operation detection units of the plurality of operation detection units is not received after the operation detection signal of the one operation detection unit And the door opening control is not performed on the door opening device. The refrigerator according to claim 4, wherein the door opening operation unit includes three or more of the plurality of operation detecting units provided on the door, and the control unit is the three or more When the plurality of operation detecting units of the plurality of operation detecting units sequentially output the operation detecting signal, the door opening operation is determined, and the door opening device is controlled by the door opening device. . The refrigerator according to claim 5, wherein the control unit sequentially outputs the operation detection signal in at least three of the three or more operation detection units. It is determined that the door opening operation is performed, and the door opening control is performed on the door opening device. The refrigerator according to any one of claims 3 to 6, wherein the plurality of operation detecting portions are arranged side by side in the lateral direction. The refrigerator according to any one of claims 2 to 7, wherein The heat-insulating door is mounted with a plurality of fans at the opening of the front surface of the refrigerator body, the door opening operation portions are respectively disposed on the plurality of doors, and the control portion is on the plurality of doors The different operations are separately detected to determine the door opening operation, and the door opening control is performed. The refrigerator according to any one of claims 2 to 8, wherein the door opening operation portion includes a capacitive touch sensor. The refrigerator according to any one of claims 3 to 9, wherein the plurality of operation detecting portions are arranged side by side in the lateral direction in the vicinity of the upper side or the lower side of the door. The refrigerator according to claim 10, wherein the plurality of operation detecting portions are arranged on one of the horizontally elongated substrates, wherein the substrate is laterally oriented from an upper end surface or a lower end surface of the door. The long state is inserted and fixed to the vicinity of the upper side or the lower side of the door. The refrigerator according to any one of claims 2 to 6, wherein the heat-insulating door is attached to the refrigerator body in such a manner that the left and right doors are opened and closed in a split manner. The front surface opening portion is provided at a position on the left and right doors and at the same height from the ground. The refrigerator according to any one of claims 2 to 11, wherein the door opening operation portion is disposed in a left-right direction near an open end of the door, and the control portion is directed to the door opening operation portion And a sliding operation that moves from the open end side toward the opposite direction is detected to determine the door opening operation, and the door opening control is performed. The refrigerator according to any one of claims 2 to 7, wherein the door opening operation portion is provided at any one of four corners of the door, and the control portion operates for the door opening When the door opening operation direction is the direction toward the outside of the door, the door opening operation is determined, and the door opening control is performed. The refrigerator according to any one of claims 2 to 14, wherein a corresponding position of the front surface plate corresponding to an installation portion of the door opening operation portion on the door is provided with a representation The marking of the direction of opening the door. The refrigerator according to any one of claims 2 to 15, wherein the door opening operation is a one-way sliding operation for the door opening operation portion, and the door opening operation portion is along the a plurality of touch sensors for sliding detection are disposed in a direction of the sliding operation, and the plurality of touch sensors are arranged along the sliding direction The adjacent touch sensors partially overlap each other in a direction different from the direction of the sliding operation. The refrigerator according to any one of claims 2 to 6, wherein the door opening operation is a sliding operation for the door opening operation portion, on the door opening operation portion, up and down, A plurality of touch sensors for detecting a slip are disposed on the right and left sides, and the control unit determines that the door is opened when the plurality of touch sensors of the door opening operation portion are subjected to a touch operation in a manner of drawing a fixed pattern Operate and perform the door opening control. The refrigerator according to any one of claims 2 to 7, wherein the control unit unidirectionally slides toward the opening operation portion. The operation is judged to be the door opening operation, and the door opening control is performed when it is determined to be a sliding operation in a direction toward the open end side of the door. The refrigerator according to any one of claims 2 to 18, wherein the door is provided with a handle for manually opening and closing the door at a portion different from the installation portion of the door opening operation portion. The refrigerator according to claim 2, comprising: a voice recognition component connected to the control unit, and the refrigerator is configured to detect sound-based use when the voice recognition component detects The opening operation portion opens the door in accordance with an instruction from the control portion when the instruction to open the door is opened. The refrigerator according to claim 20, wherein the name of the refrigerator memory storage object is associated with the name of the door or the name of the storage room in which the storage object is stored, according to the name of the storage item To open the corresponding door. The refrigerator according to claim 21, comprising: an input input registration unit, inputting and registering a name of the storage object and a name of the door or a name of the storage room in which the storage object is accommodated; The relationship between. The refrigerator according to claim 20, wherein the voice recognition component is disposed inside the door, and the voice recognition component recognizes an external sound via a hole provided in the door. The refrigerator according to claim 23, wherein the hole portion is provided at a lower portion of the door. The refrigerator according to claim 20, wherein the voice recognition member is disposed in a storage box, and the storage box is disposed outside the refrigerator. The refrigerator according to claim 20, comprising: a notification unit that notifies the door to open when the door is opened according to a sound detected by the voice recognition unit. The refrigerator according to claim 20, which comprises: a voice generating unit that asks the user side by voice whether the door can be opened, and when the voice recognition component detects an inquiry from the voice generating unit and detects that the user's representation can open the door In the case of voice, the door opening operation unit opens the door in accordance with an instruction from the control unit. The refrigerator according to claim 20, wherein the speed at which the door opening operation portion opens the door is changed according to an instruction of the control portion. The refrigerator according to claim 28, comprising: a height measuring sensor, measuring a height of the user, and changing according to the size of the height value detected by the height measuring sensor The speed of the door. The refrigerator according to claim 20, wherein the control unit detects a trigger for starting the voice recognition, that is, after the triggering, the voice recognition unit detects a voice-based opening for opening the door. When instructed, the door opening operation unit opens the door in accordance with an instruction from the control unit. The refrigerator according to claim 30, wherein the voice used as the trigger is a sound different from a sound generated when the refrigerator is operated. The refrigerator according to claim 20, wherein, for the warning content generated from the refrigerator according to the instruction of the control unit, when the user has repeatedly generated the warning content from the control unit When indicated, the warning content is repeatedly notified. The refrigerator according to claim 20, wherein the control unit does not accept other operations of opening the door when the door is open. The refrigerator according to claim 20, wherein the door opening operation portion has a function of a proximity sensor that detects a user approaching the refrigerator, when the user's finger approaches the door opening In the operation unit, the door opening operation unit emits light. The refrigerator according to claim 1, comprising: the refrigerator body, wherein a front surface thereof is open; the heat-insulating door is mounted on the front surface opening of the refrigerator body; and the door opening device Installed in the refrigerator body to make the door forcibly open the door; the door opening operation portion is disposed on the door for operating the door opening operation of the door opening device; the human body detecting component is used for Detecting a human body of the user of the refrigerator; and a control unit that, when the human body detecting component detects the human body, sets an input of an operation signal from the door opening operation portion to be effective to perform corresponding The door opening control of the door. The refrigerator according to claim 35, wherein the control unit opens the display of the door opening operation portion when the human body detecting member detects the human body. The refrigerator according to claim 36, wherein the control unit switches the display of the door opening operation unit in accordance with a manner in which the door is opened. The refrigerator according to any one of claims 35 to 37, wherein the human body detecting component is an electrostatic switch, and the electrostatic switch is used when the electrostatic switch performs the detection of the human body The sensitivity is switched higher to implement. The refrigerator according to claim 35, wherein the human body detecting component is a proximity sensor, and the control unit switches the sensitivity of the proximity sensor to set the door opening operation of the door to be effective. And the control unit actually performs the door opening operation of the door when detecting that the user has touched the proximity sensor. The refrigerator according to claim 35, wherein the human body detecting component comprises: a remote detecting sensor for detecting a human body of the user located at a remote location; a proximity detecting sensor, detecting Measuring the human body of the user located at a position closer to the remote location; and switching means for transmitting the remote detection sensor and the proximity detection sensor to the control unit Which one of the instructions to switch. The refrigerator according to claim 40, wherein The remote detection sensor is an infrared sensor, and the proximity detection sensor is an electrostatic detection sensor. The refrigerator according to claim 41, comprising: a sensitivity adjusting component that adjusts sensitivity of the electrostatic detecting sensor. The refrigerator according to any one of claims, wherein the refrigerator includes: a control operation unit provided on the door for performing an operation of changing a cooling control content of the refrigerator, The door opening operation unit is disposed below the control operation unit, and the door opening operation unit is disposed at a position shifted in the left-right direction with respect to the control operation unit. The refrigerator according to claim 2, wherein a casing is disposed in a top plate portion of the refrigerator body, and a voice recognition member for recognizing a voice is accommodated in the casing, and the casing is formed with hole. The refrigerator according to claim 44, wherein a control substrate is disposed in the casing in which the voice recognition component is housed, and the voice recognition component is disposed on the control substrate, and the The height of the casing of the voice recognition member is the same as the height of the casing of the door opening device or lower than the height of the casing of the door opening device. The refrigerator according to claim 45, wherein the control substrate and the casing are disposed on the top plate portion of the refrigerator body. In the recess provided above, the support portion of the control board is embedded in the heat insulating material in the top plate portion of the refrigerator body. The refrigerator according to claim 45, wherein in the top plate portion of the refrigerator body, a vacuum heat insulating material is disposed in a folded manner, the vacuum heat insulating material covering the door opening device The lower region portion and the lower region portion of the control substrate are disposed. The refrigerator according to claim 47, wherein the ceiling illumination in the box of the refrigerator body is embedded in a recess of the inner wall of the top plate portion, the ceiling illumination is separated from the vacuum insulation material . The refrigerator according to claim 47, wherein the vacuum heat insulating material is disposed in contact with an inner wall of the top plate portion of the refrigerator body, and a ceiling illumination in the box of the refrigerator body is exposed The outer wall of the top plate portion is disposed outside the inner wall of the top plate portion and is disposed in a bent portion of the inner wall of the top plate portion. The refrigerator according to claim 45, wherein the vacuum heat insulating material is divided into a plurality of portions, and the divided portions are covered to cover a lower portion of the door opening device and a portion thereof. It is disposed so as to control the lower region portion of the substrate. The refrigerator according to claim 47, wherein the bent portion of the inner wall of the top plate portion is formed obliquely, In the bent portion, a ceiling illumination in a refrigerator in which the refrigerator body is embedded is provided, and the ceiling illumination is separated from the vacuum heat insulating material. The refrigerator according to claim 1, comprising: the refrigerator body, wherein a front surface thereof is open; the heat insulating door is mounted on a front surface of the refrigerator body; the door opening device is installed In the refrigerator body, the door is forcibly opened to open the door; the proximity sensor is disposed on the door to detect the proximity of the human body to the refrigerator, and is caused by the human body touching a switch for performing the opening operation of the door opening device; and an effective range changing unit of the detection range for changing a valid range of the detection range of the proximity sensor when detecting the approach of the human body . The refrigerator according to claim 52, wherein the proximity sensor is a capacitive proximity sensor, and the effective range changing component of the detection range changes an electromagnetic field generated from the proximity sensor a range to change the effective range of the detection range of the proximity sensor. The refrigerator according to claim 52, wherein the effective range of the detection range is different from a range of the proximity sensor in a direction different from the front. The refrigerator according to any one of claims 52 to 54, wherein a moving part is disposed around the proximity sensor. The refrigerator according to claim 55, wherein the moving member is the door. The refrigerator of claim 55 or claim 56, wherein the effective range of the detection range of the proximity sensor does not enter a movement trajectory of the moving part. The refrigerator according to any one of claims 52 to 57, wherein the effective range changing unit of the detection range is a metal body disposed around the proximity sensor. The refrigerator according to claim 58, wherein the effective range changing unit of the detection range is disposed between the adjacent moving parts. The refrigerator according to claim 53 or claim 54, wherein the orientation of the electromagnetic field generated by the proximity sensor and the orientation of an electromagnetic field generated by the effective range changing component of the detection range is in contrast. The refrigerator according to claim 52, wherein a mesh-shaped ground pattern is disposed on the substrate on which the proximity sensor is mounted. The refrigerator according to claim 58, wherein the metal body is disposed on a cover member that blocks an opening portion for inserting a substrate on which the proximity sensor is mounted into the door. The refrigerator according to claim 1, comprising: the refrigerator body, the front surface of which is open; The door having heat insulation is installed on the front surface of the refrigerator body; the door opening device is attached to the refrigerator body to force the door to open the door; the control operation portion is disposed in the a door for performing an operation of changing a cooling control content of the refrigerator; and a door opening operation portion having a proximity sensor and a touch button, the proximity sensor being disposed on the door to detect a user approaching In the case of the refrigerator, the touch button is used to perform the door opening operation of the door opening device by a human touch, and the door opening operation portion adopts a structure that lights up when the user's finger approaches. The light-emitting form of the light-opening operation portion when the finger approaches the proximity sensor and the light-emitting form of the light-on operation of the door opening operation portion when the touch button is touched are changed. The refrigerator according to claim 63, wherein the control operation portion lights up when the human body approaches the proximity sensor. The refrigerator according to claim 64, wherein the lighting timing of the control operation unit and the lighting timing of the opening operation unit are changed. The refrigerator according to claim 64 or claim 65, comprising: one of the door and the other of the doors, when the one of the doors is opened, the door opening operation portion lights up, And the door opening operation portion of the other of the doors is also illuminated. The refrigerator according to claim 1, comprising: the refrigerator body, wherein a front surface thereof is open; the heat insulating door is mounted on a front surface of the refrigerator body; the door opening device is installed In the refrigerator body, the door is forcibly opened to open the door; the proximity sensor is disposed on the door to detect the proximity of the human body to the refrigerator, and is caused by the human body touching a switch that performs the opening operation of the door opening device; a guard electrode disposed around the proximity sensor; and a control portion that is based on the proximity sensor when the guard electrode detects a change The opening operation of the door opening device is set to be invalid. The refrigerator according to claim 67, wherein the control unit is based on the proximity when the proximity sensor detects the human body after the guard electrode detects the human body The opening operation of the door opening device of the sensor is set to be invalid, and when the guard electrode detects the human body simultaneously with the proximity sensor, the control portion is based on the proximity sensor The door opening action of the door opening device is set to be invalid. The refrigerator according to claim 67 or claim 68, comprising: a control operation unit provided on the door for performing an operation of changing a cooling control content of the refrigerator, wherein the control operation unit and the The position between the proximity sensors, the configuration Said guard electrode. The refrigerator according to any one of claims 67 to 69, wherein the gap formed by the guard electrode is larger than a width of a finger of the human body. The refrigerator according to any one of claims 67 to 69, wherein the gap formed by the guard electrode is spaced apart so that even if the curved elbow of the human body is touched, the gap is not touched. The size of the guard electrode. The refrigerator according to any one of claims 67 to 71, wherein a hole is formed in an inner region of the guard electrode and around the proximity sensor, and the illumination is illuminated from the hole Light. The refrigerator according to claim 72, wherein the hole is disposed along a circumference of the proximity sensor, and the proximity sensor and a surrounding area surrounding the proximity sensor are Linked to the link. The refrigerator according to claim 73, wherein a light-emitting element for illumination is disposed in the hole, and the light-emitting element is disposed in the hole other than a position on a back side of the connection portion. The refrigerator according to claim 74, wherein the light emitting element is disposed at a corner of an outer side of the hole. The refrigerator according to any one of claims 72 to 75, Wherein the proximity sensor comprises one electrode, and a through hole is disposed on the proximity sensor, and the through hole is not disposed at a position of the end of the proximity sensor. The refrigerator according to claim 76, wherein the wiring for the through hole is disposed through the joint portion. The refrigerator according to any one of claims 67 to 77, comprising: a substrate inserted and held from an insertion opening of the door, the proximity sensor and the guard electrode being disposed in the same On the surface side of the substrate, a component mounting region is provided on the back side of the substrate, and the component mounting region is located on the side of the insertion port in a state where the substrate is held in the door. The portion of the substrate is the opposite side. The refrigerator according to any one of claims 67 to 78, wherein the proximity sensor as the first electrode and the intermediate portion as the second electrode are configured as: When the human body approaches the proximity detection mode, the connection between the proximity sensor and the intermediate portion is cut off, and when the human body contacts the proximity sensor to function as a contact sensor, The proximity sensor is connected to the intermediate portion portion, thereby changing the sensitivity of the proximity sensor. A refrigerator according to claim 79, wherein The intermediate portion portion is disposed around the proximity sensor. The refrigerator according to claim 1, comprising: the refrigerator body, wherein a front surface thereof is open; the heat insulating door is mounted on a front surface of the refrigerator body; the door opening device is installed In the refrigerator body, the door is forcibly opened to open the door; a plurality of non-contact sensors are disposed on the door to detect the proximity of the human body to the refrigerator; and a control unit, when When the plurality of non-contact sensors detect the approach of the human body in a predetermined specific order, the door opening operation is performed by the door opening device. The refrigerator according to claim 81, wherein the specific order is obtained by: the plurality of non-contact sensors detecting the movement according to the movement of the human body along the first direction The plurality of non-contact sensors detect the human body according to movement of the human body in a second direction different from the first direction. The refrigerator according to claim 81, wherein the plurality of non-contact sensors are two-dimensionally disposed on the door. The refrigerator according to any one of claims 81 to 83, wherein the specific order instructs the control unit to perform the function of the door opening operation by the door opening device, and the other In a specific order, the control unit is instructed to make the storage room of the refrigerator urgent Quick freezing function. The refrigerator according to claim 84, comprising: a distance measuring unit that measures a distance from the human body, and the distance of the human body measured by the distance measuring unit is changed, The action of the non-contact sensor detecting the human body becomes effective.