JP2019045084A - refrigerator - Google Patents

Abstract

To provide a refrigerator that can reduce display of prints, labels, etc., in a storage chamber.SOLUTION: A refrigerator comprises a refrigerating chamber 14 opened on a front surface, an inside lamp 54 provided on a ceiling surface in the refrigerating chamber 14, an expression part 49 provided on a light transmission part, and an inclined surface 52 onto which characters are projected when light from the inside lamp 54 passes through the expression part 49.SELECTED DRAWING: Figure 6

Description

  Embodiments of the present invention relate to a refrigerator.

  Conventionally, in the refrigerator compartment of a refrigerator or the storage compartment of a vegetable compartment, a brand name, a function indication, etc. are displayed on the interior of the interior by printing, a label, etc. in order to improve appearance quality.

JP, 2017-116121, A JP 2017-72316 A

  If a lot of displays such as printing and labels are carried out inside the storage room as described above, there is a problem that the cost of parts cost increases, and the number of attaching processes of labels increases.

  Then, an embodiment of the present invention aims at providing a refrigerator which can reduce display of a printing, a label, etc. in a storage room in view of the above-mentioned problem.

  According to an embodiment of the present invention, there is provided a storage chamber having an open front surface, a light source provided in the storage chamber, an expression unit in which at least one expression body of characters, symbols and figures is expressed, and light from the light source And a projection unit configured to project the expression body through the expression unit.

The perspective view of the state which opened the door of the refrigerator of Embodiment 1 of this invention. The longitudinal cross-sectional view of the refrigerator of the state which opened the refrigerator compartment door. The expanded longitudinal cross-sectional view of an air purification apparatus. Explanatory drawing of a refrigerating cycle. Block diagram of the refrigerator. The longitudinal cross-sectional view of the refrigerator compartment of the state which is projecting the character. The perspective view of the slope of the state which is projecting the character. The perspective view of the state which is projecting the character of Embodiment 6. FIG.

  Hereinafter, a refrigerator 10 according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

  The refrigerator 10 of Embodiment 1 is demonstrated with reference to FIGS. 1-7.

(1) Refrigerator 10
As shown in FIGS. 1 and 2, in the refrigerator 10 according to the present embodiment, a storage space including a plurality of storage rooms is formed inside a cabinet 12 formed of a heat insulating box having an opening formed on the front surface. . The cabinet 12 is configured by providing a heat insulating member 13 such as a vacuum heat insulating material or a foam heat insulating material between an outer case 12a made of a steel plate and an inner case 12c forming a storage space.

  The storage space formed inward of the inner box 12 b is partitioned by the heat insulating partition 36 into an upper refrigeration space and a lower refrigeration space. The refrigerated space is a space cooled to a refrigerated temperature (for example, 2 to 3 ° C.), and the inside is further divided up and down by the partition 38, and a plurality of stages of mounting shelves are provided above the partition 38 The refrigerator compartment 14 is provided, and the vegetable compartment 16 which arrange | positions the withdrawal type vegetable container 17 below the partition body 38 is provided. On the back of the refrigerator compartment 14, a refrigerator compartment temperature sensor (hereinafter referred to as "R sensor") 31 for detecting the temperature inside the refrigerator compartment 14 is provided.

  The frozen space disposed below the vegetable compartment 16 via the heat insulating partition 36 is a space cooled to a freezing temperature (for example, -18 ° C. or less), and the ice making room 21 equipped with the ice making device 19 and the small size freezing A room 18 is juxtaposed to the left and right, and a freezing room 20 is provided below the room. A freezer compartment temperature sensor (hereinafter referred to as "F sensor") 35 for detecting the temperature inside the freezer compartment 20 is provided on the back of the freezer compartment 20.

  The front opening of the refrigerator compartment 14 is closed by a pair of left and right pivotable refrigerator compartment doors 14a, 14a pivotally supported by hinges 25 provided on the left and right sides of the cabinet 12. A plurality of door pockets 39 are provided on the rear surface of the refrigerator compartment door 14a. Further, a push-in type door sensor 14b is provided to detect whether the refrigerator compartment 14 is in the open state or in the closed state.

  The front openings of the vegetable compartment 16, the icemaker 21, the small freezer compartment 18 and the freezer compartment 20 are closed by the drawer type vegetable compartment door 16a, the icemaker door 21a, the mini freezer compartment 18a and the freezer compartment door 20a respectively Push-in door sensors 16b, 21b, 18b and 20b are provided to detect whether each door is open or closed.

(2) Structure of Cold Storage Room 14 Next, the cold storage room 14 will be described with reference to FIGS. 1, 2, 3, 6 and 7.

  At the lower part of the refrigerator compartment 14, a chilled compartment 26 is provided. The chilled chamber 26 is provided with a top plate (shelf plate) 50 made of a transparent glass plate and a chilled container 51 which is disposed below the top plate 50 and can be pulled out in the front-rear direction. The rear surface of the chilled chamber 26 is separated from the R chamber 29 by a cover 48 which will be described later. The cover 48 includes an inclined surface 52 which is inclined downward from the lower side of the top plate 50 to the front, and a vertical surface 53 provided in the vertical direction from the lower end of the inclined surface 52. The cover 48 is formed of polypropylene, and a light transmitting portion 87 is opened on the vertical surface 53.

  An interior lamp 54 is provided on the ceiling surface of the refrigerator compartment 14. The interior lamp 54 is provided with a circuit board 56 in a recess 55 provided forward of the center in the front-rear direction of the ceiling surface, and the circuit board 56 is provided with an LED 57 serving as a light source of the interior lamp 54. A transparent interior light cover 58 is provided to surround the LED 57.

  A plurality of outlets 41 for blowing cold air are opened on the back of the refrigerator compartment 14.

  From the upper part of the refrigerator compartment 14 to the chilled compartment 26, shelf boards 59 made of a plurality of transparent glass plates are horizontally installed in multiple stages.

(3) Refrigeration cycle 60
The refrigeration cycle 60 of the refrigerator 10 will be described.

  In the rear of the refrigerator compartment 14 and the vegetable compartment 16, a refrigeration evaporator (hereinafter referred to as "R EVA") 28 for cooling the compartments and cold air cooled by the R EVA 28 to the refrigeration compartment 14 and the vegetable compartment 16 A refrigerated blower (hereinafter referred to as "R fan") 30 for blowing air and an R chamber 29 for housing an air purification device 80 described later are provided.

  In the back of the ice making room 21, the small freezing room 18, and the freezing room 20, a freezing evaporator (hereinafter referred to as “F eve”) 32 for cooling these rooms and cold air cooled by the F eva 32 are made in the ice making room 21. An F chamber 33 is provided which accommodates the small freezer compartment 18 and a refrigeration fan (hereinafter referred to as "F fan") 34 for blowing air to the freezer compartment 20.

  The R eva 28 and the F eva 32 constitute a refrigeration cycle 60 together with a compressor 65 and a condenser 66 housed in a machine room 22 provided at the lower rear of the cabinet 12.

  The refrigeration cycle 60, as shown in FIG. 4, includes a compressor 65 which discharges a high-temperature, high-pressure gaseous refrigerant, a condenser 66 which receives the gaseous refrigerant discharged from the compressor 65 and dissipates heat and condenses. R pressure reducing device 68 and F pressure reducing device 69 as throttling means for the switching valve 67 provided on the outlet side of the heater 66 to switch the refrigerant flow path, the R EVA 28 and the F EVA 32, and the R EVA 28 and the F EVA 32 And a check valve 70. The refrigeration cycle 60 connects these by means of a refrigerant pipe, thereby circulating the refrigerant discharged from the compressor 65 to cool the R EVA 28 and the F EVA 32.

(4) Structure of Duct As shown in FIG. 2, the R chamber 29 is connected to a rear duct 40 provided on the back of the refrigerator compartment 14, and the air cooled by the R air 28 by the rotation of the R fan 30. The air flows through the air purifier 80 upward from the lower end to the upper end of the rear duct 40 and blows out from the outlet 41 provided at the rear of the refrigerator compartment 14 into the refrigerator compartment 14.

  After the air blown out to the refrigerator compartment 14 flows through the inside of the refrigerator compartment 14, a part thereof is returned to the R chamber 29 from the suction port 42 provided in the partition body 38, and the other part is pierced in the partition body 38 After flowing into the vegetable room 16 through the inlet (not shown) and flowing in the vegetable room 16, it returns to the R room 29 from the suction port 43 provided on the back of the vegetable room 16.

  In the F eva chamber 33, an outlet 44 provided on the back of the ice making chamber 21 and the small freezing chamber 18, and an outlet 45 and an inlet 46 provided in the freezing chamber 20 are connected. Then, the air cooled by the F EVA 32 is blown out from the blowout port 44 into the ice making chamber 21 and the small freezing room 18 by the rotation of the F fan 34 in the F EVA chamber 33, and the inside of the freezing room 20 from the blowout port 44. Blow out. The air blown out from the blowout port 44 into the ice making chamber 21 and the small freezing chamber 18 flows into the freezing chamber 20 after flowing while cooling the inside of the ice making chamber 21 and the small freezing chamber 18. The air flowing from the ice making room 21 and the small freezing room 18 into the freezing room 20 flows in the freezing room 20 together with the air blown out from the outlet 45 into the freezing room 20, and then passes through the suction opening 46 to the F Eva room 33 Return.

(5) Air purification device 80
The air purification device 80 will be described with reference to FIG. The air purification device 80 is provided in the vicinity of the outlet of the R chamber 29, and sterilizes and deodorizes the air circulating in the refrigerating chamber 14 and the vegetable chamber 16.

  As shown in FIG. 3, the air purification device 80 is disposed between the frame 81, the two light emitting devices 82 disposed at the upper and lower portions inside the frame 81, and the two light emitting devices 82. Two filters 83 are provided.

  The frame 81 is a rectangular parallelepiped, and the ventilation openings 89 and 90 are opened on the lower surface and the upper surface.

  The filter 83 is capable of circulating air and carries a visible light responsive photocatalyst 84. The visible light responsive photocatalyst comprises vanadium, chromium, manganese, iron, cobalt, nickel and copper as at least one selected from the group consisting of titanium oxide, zinc oxide, strontium titanate, tungsten oxide and silicon carbide. At least one kind of impurity element selected from the group is added as a dopant, or a platinum halide compound is contained on the surface of photocatalyst particles to make a photocatalyst, and the catalyst is used at an ultraviolet wavelength of 1 to 360 nm. A conventional photocatalyst showing activity, for example, titanium dioxide, which is the most common photocatalyst, is activated by ultraviolet light of 270 nm, while photocatalysts which are activated by lower-energy light in the visible light region of 360 to 760 nm For example, titanium oxide visible light responsive photocatalyst by nitrogen doping, platinum supported titanium oxide Etc. are known.

  A plurality of through holes 85 penetrating in the thickness direction are formed in the upper and lower two light emitting devices 82, and cold air flowing in the R chamber 29 passes through the through holes 85 provided in the light emitting device 82. A plurality of LEDs (light emitting diodes) 86 serving as light sources are provided downward on the lower surface of the upper light emitting device 82, and a plurality of LEDs 86 are provided upward also on the upper surface of the lower light emitting device 82. ing. Each of the LEDs 86 emits visible light including light in a wavelength band that excites the visible light responsive photocatalyst 84 supported on the filter 83. Such two light emitting devices 82 have visible light responsive photocatalyst 84. The surface on which the LED 86 is provided is directed toward the filter 83 while the space between the top and bottom of the filter 83 carrying the light is open.

  A rectangular light transmission portion 87 is provided at a position corresponding to the air purification device 80 on the vertical surface 53 of the cover 48 that divides the front of the chilled chamber 26 and the R chamber 29 (the cold storage chamber 14 side). The light transmitting portion 87 transmits the visible light emitted from the LED 86 of the light emitting device 82 provided in the air purification device 80 to the filter 83 and leaks to the chilled chamber 26.

  The operation of the air purification device 80 will be described. The cooled air flows into the frame 81 from the venting opening 89 on the lower surface, passes through the through holes 85, and reaches the filter 83 capable of circulating air. The light of the LED 86 of the light emitting device 82 excites and activates the visible light responsive photocatalyst 84 of the filter 83 to decompose and remove odorous components, bacteria and the like contained in the air reaching the two filters 81. The purified air passes through the through holes 85 and flows out of the frame 81 from the ventilation opening 90 on the top surface. In addition, the light of the LED 86 leaks from the light transmitting portion 87 to the chilled chamber 26, and the user can determine that the air purification device 80 is operating.

(6) Electrical Configuration of Refrigerator 10 The electrical configuration of the refrigerator 10 will be described with reference to the block diagram of FIG. The control unit 100 provided on the upper rear of the cabinet 12 includes, for example, a microcomputer and a memory, and as shown in FIG. 5, the door sensors 14b, 16b, 21b, 18b, 20b, the ice making device 19, the R sensor 31, F The sensor 35, the R fan 30, the F fan 34, the compressor 65, the switching valve 67, the internal light 54, and the light emitting device 82 are connected.

  The control unit 100 controls the rotational speeds of the R fan 30 and the F fan 34 based on the detection signals input from the various sensors 26a, 27a, 28a, 29a, 30a, 35, 31, 35 and the control program stored in advance in the memory. The overall operation of the refrigerator 10 is controlled by controlling the operating frequency of the switching valve 67, the internal light 54, and the amount of light emitted from the light source provided in the light emitting device 82.

  Specifically, when cooling the cold storage space of the cold storage room 14 and the vegetable room 16, the control unit 100 switches the switching valve 67 provided in the refrigeration cycle 60 so that the refrigerant flows to the R air 28, The R mode for operating the R fan 30 is executed. As a result, the air cooled by the R EVA 28 is blown to the cold storage room 14 and the vegetable room 16 to cool these storage rooms.

  On the other hand, when the refrigeration space such as the freezer compartment 20 is cooled, the control unit 100 switches the switching valve 67 provided in the refrigeration cycle 60 so that the refrigerant flows to the F EVA 32 and the F fan 34 Execute F mode to drive. As a result, the air cooled by the F EVA 32 is blown into the freezing space such as the freezing room 20 and the like, and the rooms provided in the freezing space are cooled.

  Further, the control unit 100 operates the air purification device 80 during the execution of the above-described R mode to perform a clean operation.

  In addition, when the door sensor 14b detects the open state of the refrigerator compartment door 14a, the control unit 100 illuminates the inside of the refrigerator compartment 14 by lighting the LED 57 of the interior light 54.

(7) Character Projection of "Deodorization and Germination" Next, a structure for performing character projection using the internal light 54 will be described with reference to FIGS. 6 and 7.

  When the pair of left and right refrigerator compartment doors 12a and 12a of the refrigerator compartment 14 is opened, the LED 57 of the interior lamp 54 is turned on, and illumination light is irradiated below the refrigerator compartment 14. On the other hand, on the top plate 50 of the chilled chamber 26, as shown in FIG. 7, black characters "deodorization and sterilization" are printed as a representation. Hereinafter, this printed portion is referred to as "representation portion 49".

  When the LED 57 of the interior light 54 is turned on, the illumination light passes through the transparent three shelf plates 59 and reaches the top plate 50, as shown in FIG. As shown in FIG. 7, since the expression unit 49 is printed on the top plate 50, a shadow is formed by the expression unit 49, and this shadow is projected on the inclined surface 52.

  In the refrigerator compartment 14, as shown in FIG. 6, the LED 57 of the interior light 54, the expression part 49, and the inclined surface (projecting part) 52 are provided at the rear of the chilled chamber 26 at a slight front of the ceiling surface. Since the straight line of the illumination light connecting the LED 57 and the inclined surface 52 is a line inclined with the vertical line and the reflected light of this illumination light faces the front opening of the refrigerator compartment 14, the user can It can be seen from the front.

  Further, as shown in FIG. 6, the inclined surface 52 is at a height (130 to 150 cm) at which the user can visually recognize from the front of the refrigerator compartment 14, and the vertical surface of the inclined surface 52 is the front opening of the refrigerator compartment 14. As it is within the range and the vertical plane is not hidden when viewed from the front of the refrigerator compartment 14, the characters projected from the user are easy to see.

  Further, since the inclined surface 52 is formed of polypropylene, the projection of characters can be performed clearly, and furthermore, since the LED 57 is a point light source, the projection is performed on the inclined surface 52 more than the characters represented by the expression unit 49. Because the characters are larger, it is easier for the user to see.

  The characters of the expressive body expressed in the expressive unit 49 are merely examples, and may be kanji, hiragana, alphabets, numbers, symbols, and figures other than this, and the meaning of the expressive body expressed by the expressive unit 49 is The product name, model number, specific functions such as the air purification device 80, and the like may be represented.

(8) Effects According to the present embodiment, since the characters are projected on the inclined surface 52 only by printing the expressing portion 49 only on the top plate 50, the printing locations of characters in the refrigerator compartment 14 are reduced The cost can be reduced, and the number of processes can also be reduced.

  Further, since the inclined surface 52 which is the projection unit is at a height at which the user can visually recognize, the characters projected onto the inclined surface 52 can be recognized with certainty. In addition, since the size of the characters projected on the inclined surface 52 is larger than the characters represented by the expression unit 49, the user can easily view.

  Moreover, since the vertical surface of the inclined surface 52 is in the range of the front opening of the refrigerator compartment 14, the projected characters are not hidden.

  In addition, since the position of the interior light 54 is positioned in front of the expressing portion 49, the straight line of the illumination light connecting the LED 57 and the inclined surface 52 is at an angle inclined with respect to the vertical line. Since the light is directed to the front opening of the refrigerator compartment 14, the user can view the characters projected on the inclined surface 52.

  Further, since the cover 48 is formed of polypropylene, characters are clearly projected on the inclined surface 52.

Embodiment 2

  Next, the refrigerator 10 of the second embodiment will be described.

  Although the expression part 49 was provided in the top plate 50 of the chilled chamber 26 in the said embodiment, it is replaced with this, and it prints on the other shelf 59 of the refrigerator compartment 14 in this embodiment. In this case, printing is performed at a position where the LED 57, the expression unit 49, and the inclined surface 52 are straight.

Embodiment 3

  Next, the refrigerator 10 of Embodiment 3 will be described.

  In the first embodiment, the expression unit 49 is printed on the top plate 50 of the chilled chamber 26. However, in the present embodiment, the expression unit 49 is printed on the storage light cover 58 of the storage light 54.

Embodiment 4

  Next, the refrigerator 10 according to the fourth embodiment will be described with reference to FIG.

  In the above embodiment, characters are projected on the inclined surface 52 using the internal light 54 as a light source. However, in the present embodiment, the LED 86 of the air purification device 80 is projected as a light source. As shown in FIG. 8, on the front surface of the light transmitting portion 87 opened in the vertical surface 53 of the cover 48, an expressing portion 89 made of a transparent plate is provided. For example, “chilled” is printed on the expression unit 91.

  When the user opens the pair of left and right refrigerator compartment doors 12a, 12a, the illumination light from the LED 86 of the air purifier 80 passes through the transparent expressing portion 89 and projects "chilled" on the front surface 51a of the chilled container 51. .

  As a result, the user can be notified that the container 51 is a chilled container without printing the characters “chilled” on the front surface 51 a of the chilled container 51.

Embodiment 5

  Next, the refrigerator 10 of the fifth embodiment will be described.

  In the third embodiment, the internal light 54 and the representation unit 49 provided on the ceiling surface of the cold storage room 14 are provided on the internal light cover 58 and the light source is projected on the slope 52. Instead of this, in the present embodiment, a light source is newly provided at the front end of the ceiling surface, an expression unit 49 in which an expression body is printed is provided on the shade cover of the light source, and the expression unit 49 is provided on the back of the refrigerator compartment 14 It may be projected. That is, in this case, the back surface is the projection unit.

  Further, as a modified example of the present embodiment, the light source may be provided not on the front end portion of the ceiling surface but on the side surface of the door 14 a of the refrigerator compartment 14. This side is a surface opposite to the refrigerator compartment 14 with the door 14a opened. Even in this case, the expression unit 49 in which the expression body is printed is provided on the shade cover of the light source, and the expression unit 49 is projected on the back surface of the refrigerating chamber 14.

Embodiment 6

  Next, the refrigerator 10 according to the sixth embodiment will be described with reference to FIG.

  In each of the above embodiments, the light source, the expression unit, and the projection unit are provided in this order. However, the present invention is not limited to this, and the light source and the representation unit may be partially overlapped without being independent.

  For example, since the air purification device 80 incorporating the LED 86 seems to glow as a whole of the frame 81, the whole may be used as a light source to provide an expression portion so as to overlap the air purification device 80 in the front-rear direction. That is, a part of the expression body may be housed inside the frame 81.

Modified example

  Although the color of the light of the LED 57 of the interior light 54 and the LED 86 of the air purification device 80 is constant in the above embodiment, the color may be changed according to the operating condition of the refrigerator 10 instead. For example, it is white in chilled state, blue in rapid freezing, and orange in thawing.

  Moreover, in the said embodiment, although the LED (light source) 57, the expression part 49, and the inclined surface (projection part) 52 were provided in the refrigerator compartment 14, it replaced with this and LED (light source) 57 and the expression part 49 to vegetable room 16 The inclined surface (projection unit) 52 may be provided in a straight line.

  Further, in the above embodiment, the characters of the expression unit 49 are expressed in black or non-transparent color, but instead, reverse expression in which the characters are printed transparently on non-transparent parts such as black, blue, red etc. It may be a part.

  The embodiments described above are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in other various forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments are included in the invention described in the claims and the equivalents thereof as well as included in the scope and the gist of the invention.

DESCRIPTION OF SYMBOLS 10 ... Refrigerator, 14 ... refrigeration room, 26 ... chilled room, 48 ... cover, 49 ... expression part, 50 ... top plate, 51 ... chilled container, 52 ... · Inclined surface (projection unit), 54 · · · Interior light, 59 · · · Shelf, 80 · · · Air purification device

Claims (16)

A storage room with an open front,
Said front door,
A light source provided in the storage room or in a door;
An expression unit provided in the storage room or in the door and expressing at least one expression of characters, symbols, and figures;
A projection unit provided in the storage chamber, wherein light from the light source is transmitted through the expression unit to project the expression body;
With refrigerator. The light source, the expression unit, and the projection unit are provided in order from the top,
The refrigerator according to claim 1. In the storage chamber, the light source, the expression unit, and the projection unit are provided in order from diagonally above,
The refrigerator according to claim 2. The light source, the expression unit, and the projection unit are provided in order from the front or the rear,
The refrigerator according to claim 1. The projection unit is an inclined surface which is inclined downward toward the front,
The refrigerator according to claim 1. The size of the representation projected onto the projection unit is larger than the representation represented by the representation unit,
The refrigerator according to claim 1. The projection unit is provided in the refrigerator in the vicinity of a specific function unit having a specific function, or a specific function unit.
The refrigerator according to claim 1. The presentation body of the presentation unit has the presentation body formed in a transparent portion, or the presentation body is formed transparent in a non-transparent portion.
The refrigerator according to claim 1. One or more transparent shelf boards are provided between the light source and the expression unit,
The refrigerator according to claim 2. One or a plurality of transparent shelf boards are provided between the expression unit and the projection unit,
The refrigerator according to claim 2. The color of the light source changes in accordance with the operating condition of the refrigerator,
The refrigerator according to claim 1. The projection unit is provided at a height visible from the front of the storage room.
The refrigerator according to claim 1. The projection unit is made of polypropylene,
The refrigerator according to claim 1. The light source is a storage light of the storage room,
The refrigerator according to claim 1. The expression unit is provided on a lamp cover of the light source.
The refrigerator according to claim 1. The expression unit is provided on the shelf board,
The refrigerator according to claim 9 or 10.

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