TWI641788B - Refrigerator - Google Patents

Abstract

The present invention provides a refrigerator, which includes: a door, a front surface of which is covered by a decorative plate, and pivots about a hinge to open and close a storage room; a door opening device, which opens a door in a locked state; The user operates to activate the door opening device. The operating member has a sensor substrate with a detection area set to detect the user touching the decorative panel. The decorative panel is near the sensor substrate and is held by the holding member The holding member keeps the distance between the decorative plate and the sensor substrate constant.

Description

refrigerator

The embodiment of the present invention relates to a refrigerator.

In the past, for example, there has been proposed a refrigerator which is provided with an electrostatic capacitance type touch sensor on the door. When a user touches a predetermined detection area set on the surface of the door, it automatically turns on. Open the door (see Patent Document 1, for example). In this type of refrigerator, in consideration of design, a decorative plate formed of a glass material or a plastic material is used to cover the front surface side of the door, and on the back side of the decorative plate, touch sensing is arranged in the form of close contact Sensor substrate for the sensor.

Existing technical literature

Patent Literature

Patent Literature 1: Japanese Patent Laid-Open No. 2012-17865

However, the decorative panel may expand and contract slightly due to temperature changes. In addition, when the decorative panel expands and contracts, the distance between the decorative panel and the sensor substrate changes, which may result in deterioration of the detection sensitivity when detecting the user's operation or erroneous detection.

Therefore, the present invention provides a refrigerator that can reduce the possibility of deterioration of detection sensitivity or erroneous detection when detecting user's operation.

The refrigerator of an embodiment includes: a door, a front surface of which is covered with a decorative plate, and is pivoted about a hinge to open and close a storage room; a door opening device opens a door in a locked state; The user operates to activate the door opening device. The operating member has a sensor substrate with a detection area set to detect the user touching the decorative panel. The decorative panel is near the sensor substrate and is held by the holding member The holding member keeps the distance between the decorative plate and the sensor substrate constant.

1‧‧‧Refrigerator

2‧‧‧Body

3‧‧‧Refrigerator (storage room)

3a‧‧‧Left door (door)

3b‧‧‧Right door (door)

4‧‧‧vegetable room

4a, 5a, 6a, 7a ‧‧‧ withdrawable door

5‧‧‧Ice making room

6‧‧‧Upper freezer

7‧‧‧Lower freezer

8a, 8b‧‧‧door opening device

9, 9a, 9b ‧‧‧ touch sensor (operation part)

10‧‧‧Operation panel

11‧‧‧Decorative board

12‧‧‧Sensor substrate

12a‧‧‧below

12b‧‧‧cutting department

13‧‧‧Bracket

14‧‧‧Operation sign board (prompt parts)

15‧‧‧LED substrate (prompt parts)

16‧‧‧ cover

17‧‧‧ Cover member

17a‧‧‧Pressing Department

18‧‧‧Inner peripheral surface

19‧‧‧urethane materials

20‧‧‧Double-sided tape (adhesive members, holding parts)

21‧‧‧Substrate opening

22‧‧‧Protection electrode

23‧‧‧Wiring pattern

24, 25, 30‧‧‧ connectors

26, 27‧‧‧ cable

28‧‧‧ Sign board opening

29‧‧‧LED (prompt parts)

40‧‧‧Frame (holding parts)

L1‧‧‧Centerline

L2‧‧‧straight line

R‧‧‧ Detection area

FIG. 1 is a diagram schematically showing the appearance of a refrigerator according to an embodiment.

2 (a) and 2 (b) are diagrams schematically showing a holding member of a decorative panel according to an embodiment, and FIG. 2 (a) is a cross-sectional view showing an operation part of a door, and FIG. 2 (b) It is a front view showing the vicinity of the operating part of the door.

3 is a diagram schematically showing a sensor substrate according to an embodiment.

Fig. 4 is a diagram schematically showing an operation sign board according to an embodiment.

5 is a diagram schematically showing a light emitting diode (LED) substrate according to an embodiment.

6 is a longitudinal cross-sectional view of an operation portion of a door schematically showing the positional relationship between the opening of the sign board, the opening of the substrate, and the LED in one embodiment.

7 is a cross-sectional view schematically showing an operation part of a door of a holding member of a decorative panel according to another embodiment.

Hereinafter, an embodiment will be described with reference to FIGS. 1 to 6.

As shown in FIG. 1, in the refrigerator 1 of the embodiment, inside the main body 2, a refrigerating compartment 3 and a vegetable compartment 4 that are a refrigerating temperature section that is a storage compartment for storing ingredients are arranged in order from above Room 5, upper freezing room 6 and lower freezing room 7. The vegetable compartment 4 and the ice-making compartment 5 are partitioned by an insulating partition wall. The refrigerator compartment 3 is opened and closed by two left and right doors 3a and 3b. That is, the refrigerator of this embodiment is a so-called French door type refrigerator. The vegetable compartment 4, the ice-making compartment 5, the upper freezing compartment 6, and the lower freezing compartment 7 are opened and closed by a draw-out door 4a, a door 5a, a door 6a, and a door 7a, respectively. In addition, the structure of the refrigerator 1 shown in FIG. 1 is an example, and it is also possible to adopt a structure in which the number and arrangement order of storage rooms are different, or instead of the upper freezing room 6, a chilled room is provided or the setting temperature can be switched The structure of the room, etc.

The left door 3a and the right door 3b of the refrigerator compartment 3 are opened by door opening devices 8a and 8b, respectively. Specifically, the left door 3a is provided with a touch sensor 9a for actuating the door opening device 8a, and the detection area of the touch sensor 9a is touched by the user, that is, the surface of the decorative panel is touched by the user The position of the front of the touch sensor 9a on the front side of the front door is such that the door opening device 8a is activated to open the left door 3a in the locked state.

The right door 3b is provided with a touch sensor 9b for actuating the door opening device 8b. When the user touches the detection area, the door opening device 8b actuates to open the right door 3b in the locked state. Furthermore, the right door 3b is provided with an operation panel 10 for setting the refrigerator 1 and the like. The operation panel 10 is sensed by electrostatic touch The sensor is constituted so that the LED is always off. On the one hand, when the user stands in front of the refrigerator 1, a human sensor or a proximity sensor (not shown) detects a person and turns on the LED. Thereby, the operation portion of the operation panel 10 is displayed, so that the user can operate.

The door opening devices 8a and 8b of this embodiment adopt a solenoid type device. Hereinafter, when the door opening devices 8 a and 8 b are jointly described, they are simply referred to as the door opening device 8, and when the touch sensors 9 a and 9 b are jointly described, they are simply referred to as the touch sensor 9. The touch sensor 9 corresponds to an operation member.

The door opening device 8 adopts the structure used in the past, so detailed description is omitted, but the door opening device 8 is located on the opposite side to the hinge (illustration omitted) which becomes the rotation center of the door, that is, it is located on the left and right of the refrigerator 1 in this embodiment It is set at the open end side of the center side. When the user touches the detection area of any touch sensor 9, the solenoid is driven and a part of the gasket provided in the door body or the door Pushing forward, the corresponding door opens.

The touch sensor 9 is arranged at the lower part of the open end side of each door, so that the user can easily reach it when the door is opened. As shown in FIG. 2 (a), the touch sensor 9 includes a sensor substrate 12 provided on the back of the decorative panel 11, and the decorative panel 11 covers the front surface of the door. This FIG. 2 (a) schematically shows the structure of the touch sensor 9b provided in the right door 3b. The sensor substrate 12 is held by a substrate holder 13. Furthermore, a film-like name plate 14 is arranged between the decorative plate 11 and the sensor substrate 12, and LEDs are arranged on the back side of the sensor substrate 12, that is, the side opposite to the decorative plate 11. Substrate 15.

In the case of this embodiment, the sensor substrate 12, the substrate holder 13, The operation sign board 14 and the LED board 15 are assembled into an integrated structure, and are stored in a storage space formed inside the door. The storage space for storing the assembly structure is closed by a cap 16 and a cover member 17. At this time, the pressing portion 17a provided in the cover member 17 is pressed from the inner peripheral surface 18 of the storage space toward the decorative plate 11 side. Therefore, the sensor board 12 is in a state of being in close contact with the back surface of the decorative board 11 with the operation indicator plate 14 sandwiched. In addition, portions other than the storage space inside the door are filled with heat insulating members such as urethane material 19.

The decorative panel 11 is installed on the door by double-sided tape 20. Furthermore, in this embodiment, the structure located near the touch sensor 9 is firmly adhered to the cover 16 in this embodiment. In other words, a holding portion for holding the decorative plate 11 on the door is also provided near the touch sensor 9. This double-sided tape 20 corresponds to a holding member and an adhesive member. Specifically, as shown in FIG. 2 (b), the decorative panel 11 is fixed by the double-sided tape 20 in a range longer than the sensor substrate 12 in the longitudinal direction of the door (the vertical direction in the figure). As a result, the decorative plate 11 can be restricted from moving toward the front side (upper side in the figure) due to deformation or the like, that is, the distance between the decorative plate 11 and the sensor substrate 12 can be suppressed from changing. In addition, in FIG. 2 (b), for example, a structure may be adopted in which a double-sided tape 20 is provided under the sensor substrate 12 in the lateral direction of the door (left-right direction in the figure) to hold the decorative panel 11. Moreover, the following structure may also be adopted: the double-sided tape 20 is attached in parallel only near the touch sensor 9, thereby, in the vicinity of the touch sensor 9, the position farther away from the touch sensor 9 The decorative plate 11 is fixed more strongly. Moreover, the following structure may also be adopted: in the vicinity of the touch sensor 9, except for the double-sided tape In addition to 20, an adhesive is also used together to fix the decorative panel 11 more strongly.

As shown in FIG. 3, the sensor substrate 12 is provided with a detection area R, which is used to detect the user's operation, that is, the user touches the surface of the decorative plate 11 by the change in electrostatic capacitance, and A plurality of substrate openings 21 are formed in a state of being separated from each other so as to be along the detection region R. In addition, although the illustration is omitted on the sensor substrate 12, circuit components and the like are mounted on the back side, that is, the surface opposite to the surface side facing the decorative plate 11.

The substrate opening 21 is used to transmit the light irradiated from the LED 29 (see FIG. 5) to the operation sign board 14 side, that is, the decorative board 11 side. 15 on. Therefore, the substrate opening 21 is formed to be larger than the LED 29 in consideration of the processing accuracy when mounting the LED 29, the dimensional accuracy of the substrate, the mounting accuracy, and the like.

On the other hand, each substrate opening 21 is formed to the minimum necessary size. In addition, the minimum necessary size refers to the degree that it can be irradiated to the sign plate opening 28 formed on the operation sign plate 14 as explained later in FIG. 6 in consideration of the mechanical accuracy and the like. size. Therefore, the substrate opening 21 of this embodiment is formed into a vertically long elliptical shape. By providing the substrate opening 21 with such a size, it is possible to more accurately detect the change in the electrostatic capacitance.

That is, in order to accurately detect the user's operation, the sensor substrate 12 must be kept in close contact with the back side of the decorative plate 11 at a certain distance. At this time, as described above, the decorative plate 11 is held by the double-sided tape 20 so that the distance from the sensor substrate 12 is fixed. However, if the substrate opening 21 is excessively enlarged, for example If the slit-like shape is formed over the entire circumference of the detection region R, the detection region R and the other parts of the sensor substrate 12 (hereinafter, referred to as the main body part for convenience) are in a state of only a slight connection. As a result, the detection area R may swell from the body portion of the sensor substrate 12.

On the other hand, if the substrate openings 21 are formed to the minimum necessary size, the connection portion between the detection area R and the main body portion becomes firm, and the detection area R can be prevented from bulging. At this time, as described above, the circuit component is mounted on the back side of the sensor substrate 12 and the wiring pattern 23 is provided on the front side, so the detection region R is flush and flat with the body portion. By this, as long as the sensor substrate 12 is brought into close contact with the back side of the decorative board 11, the detection area R will also be brought into close contact, so that the decrease in detection accuracy can be prevented.

In addition, on the sensor substrate 12, a guard electrode 22 is provided on the outer peripheral side of the detection region R. The protective electrode 22 is used to prevent the phenomenon of accidentally opening the door when the user touches a relatively wide range including the detection area R. Specifically, for example, as a countermeasure when the user touches a wide area including the detection area R with a rag or the like when cleaning the door.

Furthermore, each substrate opening 21 is formed into a so-called long hole shape. In this case, after opening a hole as a reference with a drill, the sensor substrate 12 is directly moved in a predetermined direction, whereby the substrate opening 21 can be formed, and hole processing can be easily performed.

In addition, the sensor substrate 12 shown in FIG. 3 is provided on the right door 3b. In this embodiment, in the case of the touch sensor 9a provided in the left door 3a, the detection As shown in FIG. 1, the positional relationship of the region R is symmetrical to the sensor substrate 12 for the right door 3b shown in FIG. 3. That is, in this embodiment, the sensor substrates 12 of different arrangements are used in the left door 3a and the right door 3b. More specifically, for the sensor substrate 12 provided in the left door 3a and the right door 3b, the detection region R is located on the open end side.

At this time, considering the general view of reducing the number of parts to achieve cost down, it is desirable to use a common sensor substrate 12, but if a common sensor substrate 12 is used, the detection area R The location will be different in each door. More specifically, the distance from the open end of each door to the detection area R will be different between the left door 3a and the right door 3b. At this time, the user may feel inconsistent with the operation, or lose the left-right symmetry, resulting in a decrease in design.

Therefore, in this embodiment, two types of sensor substrates 12 for the left door 3a and the right door 3b are used with emphasis on user operability. As a result, in the left and right doors, the distance from the open end side to the detection area R coincides, and there is no discomfort.

Furthermore, in this embodiment, the sensor substrate 12 is not a simple rectangle, but is provided with a cut-out portion 12b which is located above the lower side 12a below the detection area R. In addition, the cut-out portion 12b is provided with connectors 24 and 25 for outputting sensor signals and for connecting to the LED board 15. That is, the connectors 24 and 25 are provided below the circuit components of the sensor board 12 and the like. With this, for example, even when water falls on the cables 26 and 27, the water drops can be prevented from falling on the circuit components of the sensor substrate 12 and the like. In addition, the connectors 24 and 25 are mounted on the back side of the sensor substrate 12.

Moreover, by providing the cut-in portion 12b, the lower end of the sensor substrate 12 becomes The lower side 12a below the detection area R can make the sensor substrate 12 as close to the door as possible. In addition, in the case of the refrigerator 1 provided with a plurality of storage compartments as in the present embodiment, if the user does not have the door opening device 8 and the user has to open the door by hand, the user often grasps the lower part of the door to open it. Therefore, it can be considered that by providing the cut-in portion 12b and arranging the detection area R near the lower end of the door, the user can easily operate the touch sensor 9.

Moreover, the vertically long decorative plate 11 may adopt the following structure: Although it is considered that the central portion of the vertical direction will be deformed in a protruding manner, by disposing the touch sensor 9 on the lower side of the decorative plate 11, Even if deformation occurs, the amount of deformation can be expected to be smaller than the central portion, and it can be configured to further have resistance to false detection and the like.

In addition, when the touch sensor 9 is operated, if the position of the detection area R is not known, it is difficult to perform the operation. Therefore, in the present embodiment, a presentation member that visually presents the detection area R is provided. The presenting member is composed of an operation sign board 14 and an LED board 15.

In addition, the following structure is adopted: on the sensor substrate 12, a proximity sensor (not shown) is provided to turn off the LED 29 from time to time, and when the proximity sensor detects that an operation is intended, the LED 29 Lights up or flashes.

The operation indicator plate 14 is formed of a resin material or the like into a film shape, and as shown in FIG. 4, has a size substantially the same as the outer shape of the sensor substrate 12. On the operation sign board 14, a plurality of sign board openings 28 are formed. In the case of this embodiment, the sign plate opening 28 is an opening provided with two rows of circular holes along the left and right sides of the detection area R (see FIG. 3).

As shown in FIG. 5, the LED substrate 15 is provided with a plurality of LEDs 29 one-to-one with the substrate opening 21 at a position corresponding to the substrate opening 21 of the sensor substrate 12. The LED board 15 is connected to the sensor board 12 by a cable 26 via a connector 30.

In addition, the door opens and closes the refrigerator compartment 3, and of course requires heat insulation. Therefore, as described above, the interior of the door is filled with the urethane material 19 and the like. At this time, if the sensor substrate 12 is disposed inside the door, since the storage space is not filled with the urethane material 19, the thermal insulation property may change, so it is preferable that the storage space is as much as possible For small capacity. That is, in the case where the sensor substrate 12, the operation indicator plate 14 and the LED substrate 15 are arranged to overlap as shown in FIG. 2, it is desirable to be as thin as possible.

On the other hand, as the distance from the LED board 15 becomes shorter, the distance between each LED 29 and the operation indicator board 14 also becomes shorter. As a result, on the back side of the operation sign board 14, the range in which each LED 29 can be irradiated (hereinafter, referred to as the irradiation range for convenience) becomes small. Therefore, when the sign board opening 28 of the operation sign board 14 is large, more specifically, if the size of the sign board opening 28 is larger than the irradiation range of the LED 29, the sign board opening 28 cannot be uniformly illuminated Bright, resulting in uneven brightness. In addition, the brightness unevenness will also be seen by the user, which may damage the design or taste of the refrigerator 1.

Therefore, in this embodiment, the size of the opening 28 of the sign board is formed so as to be smaller than the irradiation range of the LED 29 at the position where the sign board 14 is operated. With this, from the front side of the door, the detection area R is displayed as a so-called dot The enclosed area is presented to the user. At this time, brightness unevenness does not occur in the sign board opening 28, so the light of each sign board opening 28 becomes uniform, and the quality of the refrigerator 1 is not impaired.

Furthermore, in this embodiment, the sign plate opening 28 is shown in the front view of FIG. 2 (b), and as shown in the longitudinal sectional view of FIG. 6, is provided above the center line L1 of the LED 29. In addition, the position of the sign plate opening 28 naturally falls within the irradiation range of the LED 29. Therefore, the brightness is highest from the direction of the straight line L2 passing through the LED 29, the substrate opening 21, and the sign board opening 28. In the case of this embodiment, the direction of the straight line L2 is set to be close to the height of the eyes of an ordinary adult when using the refrigerator 1.

At this time, assuming that the position of the sign board opening 28 is on the front of the LED 29, that is, on the center line L1, it is difficult for the user who comes to the front of the refrigerator 1 to open the door of the refrigerator 1 to grasp the position of the detection area R .

On the other hand, by positioning the opening portion 28 of the sign board above the front of the LED 29 as in the present embodiment, even the user who comes to the front of the refrigerator 1 can easily grasp the position of the detection area R.

In addition, when the LED 29 of the same color as the decorative plate 11 is used, a so-called high-brightness LED may be used. The front brightness of such an LED element is the highest. Therefore, if the sign plate opening 28 is provided on the front of the LED, it may be quite dazzling. And, considering that the refrigerator 1 is used almost every day, it is not ideal to make people feel so dazzling whenever the door is operated. Therefore, by shifting the position of the opening 28 of the sign board from the front of the LED 29 as in the present embodiment, it is possible to avoid Don't let people feel dazzling. In particular, if the touch sensor 9 is provided on the lower end side of the door as shown in FIG. 1, the LED 29 may be located at the height of the child ’s line of sight, but by staggering the sign plate opening 28 from the front of the LED 29 Configuration, so that the possibility of children looking directly at the LED 29 can be suppressed.

According to the refrigerator 1 described above, the following effects are achieved.

The decorative plate 11 of the refrigerator 1 is provided in the vicinity of the sensor substrate 12, and is held at a fixed distance from the sensor substrate 12 by a holding member (double-sided tape 20) holding the decorative plate 11. As a result, in the vicinity of the sensor substrate 12 constituting the touch sensor 9 which is an operation member, the distance from the sensor substrate 12 is fixed, thereby reducing the deterioration of the detection sensitivity when detecting the user's door opening operation or Possible detection by mistake.

As the holding member, a double-sided adhesive tape 20 as an adhesive member is used. The adhesive member adheres the decorative plate 11 to the structure near the sensor substrate 12. Therefore, when the decorative plate 11 is fixed, the fixing work can be easily performed.

Moreover, the refrigerator 1 is provided with a prompting member composed of an operation sign board 14 and an LED substrate 15 and the like, and presenting the detection area R of the touch sensor 9 to the user, so that the user can easily grasp which part can be touched to open the door .

Furthermore, the presentation member is composed of one or more point light sources that perform so-called point display. Thereby, the designability of the detection area R can be improved by using two simple displays.

The LED 29 indicating the detection area R is arranged on the back side of the sensor substrate 12, and a plurality of substrates are formed along the detection area R on the sensor substrate 12 The mouth portion 21, the plurality of substrate openings 21 are used to transmit the light irradiated from the LED 29 to the operation sign board 14 side. Thereby, the possibility that the position of the detection area R starts along the body portion of the sensor substrate 12 can be reduced, and the sensor substrate 12, that is, the detection area R can be closely contacted to the decorative board 11. Therefore, a decrease in detection accuracy can be prevented.

The size of the sign board opening 28 of the operation sign board 14 is formed to be smaller than the irradiation range of the LED 29, and its position is above the LED in the longitudinal direction of the refrigerator 1. With this, the light from the LED 29 is irradiated toward the eyes of a user who is close to the refrigerator 1, that is, a user who wants to open the door of the refrigerator 1. Therefore, the user can easily grasp the detection area R.

(Other embodiments)

The present invention is not limited to those exemplified by the above-mentioned one embodiment, and can be arbitrarily modified or expanded as described below within a range not departing from this range.

In one embodiment, as the holding member, the double-sided tape 20 as the adhesive member is exemplified, but as the adhesive member, it may be an adhesive. Furthermore, the holding member may be a member other than the adhesive member. For example, as shown in FIG. 7, a rim 40 covering a part of the end of the decorative plate 11 to the front surface side is provided by the rim 40 Keep the decorative plate 11 and so on.

In one embodiment, the so-called French door refrigerator 1 that opens and closes the refrigerator compartment 3 by the left door 3a and the right door 3b is exemplified. However, the installation form of the sensor substrate 12 exemplified in one embodiment can also be applied to The refrigerator in the refrigerator compartment 3 is opened and closed by one door.

The shape of the sign plate opening 28 may be a square shape, a rectangular shape, a triangular shape, an arrow shape, or the like in addition to the circular shape exemplified in the embodiment. Furthermore, in one embodiment, on the left and right sides of the detection region R, the sign plate openings 28 for performing dot display are provided in the longitudinal direction, but the signs may also be provided along the upper and lower sides of the detection region R板 口 部 28。 The plate opening 28. Furthermore, a plurality of sign plate openings 28 may be provided corresponding to one LED 29. For example, a configuration may also be adopted in which another sign board opening 28 is provided below the sign board opening 28 passing through the straight line L2 shown in FIG. That is, the sign plate opening 28 may be any shape or arrangement as long as it can visually present the detection area R to the user.

Moreover, the sign plate opening 28 may not be two rows as exemplified in one embodiment, but a row, and the number thereof may also be different, and the sign plate opening 28 may also be provided at the center of the detection area R or Multiple.

In one embodiment, the case where a person is detected by a human sensor, a proximity sensor, or the like to turn on the LED is exemplified. However, a constant lighting mode in which the user always turns on the LED may be provided.

In one embodiment, the case where the holding member is provided irrespective of the distance from the hinge that becomes the center of rotation is exemplified, but the distance from the hinge to the end of the doors 3a, 3b opposite to the hinge may be exemplified. The longer door is provided with a holding member, or the fixing by the holding member is stronger.

By this, the doors with stronger impact force when closing the doors 3a, 3b are fixed more strongly, so that each door 3a, 3b can be fixed with the best force set.

In one embodiment, the case where the holding member is provided near the touch sensor 9 is exemplified. However, the holding member may be provided near the position pushed forward by the door opening device 8. Thereby, even when an impact force is applied from the door opening device 8 when the doors 3a and 3b are opened, the decorative panel 11 can be prevented from bulging from the doors 3a and 3b, and the decorative panel 11 can be prevented from falling off from the doors 3a and 3b.

Each embodiment is only an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in other various forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are also included in the invention described in the patent application scope and its equivalent scope.

Claims (4)

A refrigerator includes: a door, a front surface of which is covered by a decorative plate, and is pivoted about a hinge to open and close a storage room; a door opening device opens the door in a locked state; an operating part is provided in the door and is opened by a user Operate to operate the door opening device, the operating member has a sensor substrate set with a detection area that detects when the user touches the decorative panel; and a prompting member that visually The user prompts the detection area that the decorative plate is in the vicinity of the sensor substrate and is held by a holding member that restricts the deformation of the decorative plate and connects the decorative plate and the sensing The distance of the sensor substrate is kept fixed, the sensor substrate is arranged on the back of the decorative plate, the end of the decorative plate is held by the end of the door via the holding member, the holding member is in The decorative plate is held in a longer range than the sensor substrate in the longitudinal direction of the door, the prompting member is composed of a light-emitting diode substrate and an operation sign board, and the light-emitting diode substrate is provided with A plurality of light emitting diodes as a light source, the operation sign board is formed with a plurality of sign board openings, wherein the size of the sign board opening of the operation sign board is formed to be smaller than the irradiation of the light emitting diode Range, and the position of the opening of the sign board is higher than the light emitting diode in the longitudinal direction of the refrigerator. The refrigerator according to item 1 of the patent application range, wherein the holding member is an adhesive member that adheres the decorative plate to a structure located near the sensor substrate. The refrigerator according to item 1 of the patent application scope, wherein the prompting component includes more than one point light source, and prompts the user of the detection area. The refrigerator according to item 1 of the patent application scope, wherein the light-emitting diode substrate is disposed on the back side of the sensor substrate, and the operation indicator plate is formed in a thin film shape and is disposed on the decorative plate and all Between the sensor substrates, the plurality of sign board openings transmit light irradiated from the light emitting diode to the door side, and the sensor substrate is formed along the detection area A plurality of substrate openings for transmitting the light irradiated from the plurality of light emitting diodes to the operation sign board side.