WO2019163126A1

WO2019163126A1 - Refrigerator

Info

Publication number: WO2019163126A1
Application number: PCT/JP2018/006948
Authority: WO
Inventors: 和貴鈴木; 前田　剛; 康成大和; 裕哉鈴木
Original assignee: 三菱電機株式会社
Priority date: 2018-02-26
Filing date: 2018-02-26
Publication date: 2019-08-29
Also published as: JPWO2019163126A1

Abstract

This refrigerator comprises: a refrigerator body that is formed with an opening in the front side and has at least one storage room; a door that openably closes the opening of the storage room; and a lighting module provided in the storage room. The lighting module has a light guide plate formed into a strip and has a light receiving surface on at least one longitudinal side surface and a light source body provided along the light receiving surface of the light guide plate. The light guide plate is configured such that the light receiving surface is disposed along the width direction of the refrigerator body, and a first light emitting surface that emits light incident from the light receiving surface is formed on one surface that opposes the interior of the storage chamber.

Description

refrigerator

The present invention relates to a refrigerator provided with an illumination module that illuminates a storage room.

Conventionally, in a refrigerator, a configuration is known in which the internal volume of a refrigerator room, which is the most frequently used among a plurality of storage rooms, is made larger than the internal volumes of other storage rooms to improve the storage capacity of stored items. . In the refrigerator compartment, the interior is partitioned by shelves to form a plurality of spaces to increase the storage efficiency of stored items. In the refrigerator compartment, an illumination module that brightly illuminates the interior is installed in order to improve the visibility of stored items to be taken in and out.

In recent years, in order to increase the internal volume of the refrigerator, the heat insulating member provided between the inner box and the outer box of the refrigerator main body has been thinned, and the lighting module is also required to be thin. For example, an illumination module for a refrigerator disclosed in Patent Document 1 is formed in a strip shape, and includes a light guide plate having a light receiving surface on at least one side surface in a short direction, and a light source body provided along the light receiving surface of the light guide plate. It is the structure which has these. A light emitting surface that emits light incident on the light receiving surface is formed on the surface of the light guide plate facing the storage chamber. The light source body is composed of a plurality of light emitting elements arranged along the light receiving surface of the light guide plate.

JP2015-114005A

In the illumination module of the refrigerator of Patent Document 1, it is possible to reduce the thickness by having a strip-shaped light guide plate. However, since this illumination module illuminates the refrigerator compartment by reflecting all the light emitted from the light source through the light guide plate, the brightness is attenuated by the number of reflections. That is, in the refrigerator of Patent Document 1, the refrigerator compartment may appear darker than when the light source body having the same configuration is directed directly toward the refrigerator compartment. On the other hand, in the refrigerator of Patent Document 1, by extending the light receiving surface in the short direction of the light guide plate, more light emitting elements of the light source body can be arranged correspondingly, and the refrigerator compartment can be illuminated brightly. However, as the light receiving surface is extended, the shape of the light guide plate is increased, so that the manufacturing cost is increased and the internal volume of the refrigerator is reduced.

The present invention was made to solve the above-described problems, and even in a thin illumination module, the interior of the storage room can be illuminated brightly, and the visibility of stored items can be improved. The purpose is to provide a refrigerator.

The refrigerator according to the present invention is provided with an opening on the front surface, a refrigerator main body having at least one storage chamber, a door portion that opens and closes the opening of the storage chamber, and an illumination module provided in the storage chamber The illumination module includes a light guide plate that is formed in a belt shape and has a light receiving surface on at least one side surface in the longitudinal direction, and a light source body provided along the light receiving surface of the light guide plate. In the light guide plate, the light receiving surface is disposed along the width direction of the refrigerator body, and the first light emitting surface for emitting the light incident from the light receiving surface is opposed to the storage chamber. Is formed.

According to the present invention, a light receiving surface is provided on at least one side surface in the longitudinal direction of the light guide plate, and a large number of light emitting elements of the light source body can be arranged along the light receiving surface. The visibility of stored items can be improved.

It is a front view of the refrigerator which concerns on Embodiment 1 of this invention. FIG. 2 is a cross-sectional view taken along the line II-II shown in FIG. It is the enlarged view which showed the A section shown in FIG. 2 in detail. It is the top view which showed the illumination module of the refrigerator which concerns on Embodiment 1 of this invention. It is explanatory drawing which showed the relationship between the distance from LED, and the air temperature in the said distance. It is explanatory drawing which showed the relationship between the lighting module and lighting cover of the refrigerator which concerns on Embodiment 1 of this invention. It is the top view which showed the modification of the illumination module of the refrigerator which concerns on Embodiment 1 of this invention. It is the illumination module of the refrigerator which concerns on Embodiment 2 of this invention, Comprising: It is the enlarged view which showed the A section shown in FIG. 2 in detail.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and the description thereof is omitted or simplified as appropriate. Moreover, about the structure as described in each figure, the shape, a magnitude | size, arrangement | positioning, etc. can be suitably changed within the scope of the present invention.

Embodiment 1 FIG.
First, based on FIG.1 and FIG.2, the whole structure of the refrigerator 100 of Embodiment 1 is demonstrated. FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention. 2 is a cross-sectional view taken along the line II-II shown in FIG. The X direction in the figure indicates the width direction of the refrigerator 100, the Y direction indicates the height direction of the refrigerator 100, and the Z direction indicates the depth direction of the refrigerator 100.

The refrigerator 100 has an opening on the front surface, the interior of the refrigerator 100 is partitioned by a plurality of partition plates 12, and a plurality of storage chambers 2 are formed. The refrigerator 100 is provided on the front surface of the refrigerator body 1, and each storage chamber The door 3 is configured to be openable and closable. In the refrigerator main body 1, a space sealed by a hard resin inner box 10 that is the inside of the refrigerator 100 and a steel plate outer box 11 that is the outside of the refrigerator 100 is formed. The space sealed by the inner box 10 and the outer box 11 is provided with a vacuum heat insulating material and filled with a foam heat insulating material such as urethane foam.

As an example, the storage room 2 includes a refrigerated room 20, a switching room 21, an ice making room 22, a freezing room 23, and a vegetable room 24 in order from the top. Each storage room is distinguished by a settable temperature zone (set temperature zone). For example, the refrigerator compartment 20 is about 3 ° C., the switching room 21 is 0 ° C. or −7 ° C., the ice making room 22 and the freezing room 23 are The vegetable room 24 can be set to about -12 ° C to -18 ° C and about 5 ° C. The storage chamber 2 is not limited to the illustrated configuration. Further, the set temperature of each storage room is not limited to this, and the setting can be appropriately changed according to the installation location and the contents.

The refrigerator compartment 20 is frequently used, and is arranged on the uppermost stage where the user can take in and out without bending. At the front opening of the refrigerating room 20, a double door refrigerating room door 30 composed of a refrigerating room left door and a refrigerating room right door is provided. The refrigeration room left door and the refrigeration room right door are rotatably supported by hinge portions that support the door rotation shaft. The refrigerator compartment 20 has a structure in which the interior is partitioned by a shelf 20a to form a plurality of spaces, and the storage efficiency of stored items is increased. Further, a concave storage portion 40 is formed on the top surface of the refrigerator compartment 20 along the width direction (X direction) of the refrigerator body 1. The storage unit 40 stores the lighting module 4 that illuminates the inside of the refrigerator compartment 20 brightly. The illumination module 4 is provided in order to improve the visibility of stored items that are taken in and out of the refrigerator compartment 20.

The switching chamber 21 can be switched to a chilled temperature of about 0 ° C. and a soft freezing temperature of about −7 ° C., for example. A drawer-type switching chamber door 31 is provided at the front opening of the switching chamber 21. A drawer-type ice making room door 32 is provided at the front opening of the ice making room 22. A drawer-type freezer compartment door 33 is provided at the front opening of the freezer compartment 23. In addition, a drawer-type vegetable compartment door 34 is provided at the front opening of the vegetable compartment 24. In addition, although illustration was abbreviate | omitted, the door gasket which prevents an indoor outflow of indoor cool air is attached to each door part along the inner periphery.

On the rear side of the switching chamber 21, the ice making chamber 22, and the freezing chamber 23, a cooler chamber 13 partitioned by a partition wall is provided. The cooler chamber 13 houses a cooler 14 that generates cool air of about −20 to −30 ° C. and a fan 15 that supplies the cool air to each chamber. Further, on the rear side of the vegetable compartment 24, a compressor 16, a condenser 17, a heat radiation pipe for heat radiation (not shown), and a pressure reducing device 18 such as a capillary tube are provided. The refrigerator 100 is configured to perform a cooling operation by enclosing a refrigerant in a refrigerant cycle in which the compressor 16, the condenser 17, the heat radiating pipe, the decompression device 18, and the cooler 14 are annularly connected by refrigerant piping. The cool air generated in the cooler chamber 13 is sent to each storage chamber after the air volume is adjusted by a damper 19 which is an air volume adjusting means.

Next, the configuration of the illumination module 4 according to the first embodiment will be described with reference to FIGS. FIG. 3 is an enlarged view showing a part A shown in FIG. 2 in detail. FIG. 4 is a plan view showing the lighting module of the refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 3, the illumination module 4 is housed in a concave housing portion 40 formed on the top surface of the refrigerator compartment 20. Specifically, the opening of the storage unit 40 is closed by a transparent synthetic resin lighting cover 9. In the storage portion 40, a holding member 41 that holds the illumination cover 9 is provided along the inner surface. The holding member 41 is made of a colored member made of a synthetic resin having a high reflectance. The colored member is, for example, an ABS resin, and is a mirror-polished material having a visible light reflectance of 0.9 or more and based on white. The illumination cover 9 is joined to the holding member 41 by a joining member such as a screw, for example, or is fitted to the holding member 41 by a fitting structure and is held by the holding member 41. The illumination module 4 is accommodated in a space surrounded by the illumination cover 9 and the holding member 41.

As shown in FIGS. 3 and 4, the illumination module 4 is formed in a strip shape, and includes a light guide plate 5 having

light receiving surfaces

50 a and 50 b on both side surfaces in the longitudinal direction, and the light receiving surfaces 50 a and 50 b of the light guide plate 5. And a light source body 6 provided.

The light guide plate 5 is made of a synthetic resin sheet material having light permeability. The thickness of the light guide plate 5 is, for example, about 2 mm to 5 mm. In the light guide plate 5, light receiving surfaces 50 a and 50 b are arranged along the width direction (X direction) of the refrigerator body 1. Further, the light guide plate 5 is formed with a first light emitting surface 51 that emits light incident from the light receiving surfaces 50 a and 50 b into the refrigerator compartment 20 on the surface facing the refrigerator compartment 20.

The light guide plate 5 has a second light emitting surface 52 for emitting light incident from the light receiving surfaces 50a and 50b on the other surface. The second light emitting surface 52 is provided with a reflecting member 7 that reflects the light incident from the light receiving surfaces 50 a and 50 b toward the first light emitting surface 51. The reflecting member 7 is made of, for example, a resin sheet having light reflectivity or a metal sheet having light reflectivity. The reflecting member 7 is provided with an optical pattern such as a mountain shape, a rectangular shape, an arc shape, or a trapezoidal shape so that light is diffused.

The light source body 6 has a configuration in which a plurality of light emitting elements 60 arranged along the light receiving surfaces 50 a and 50 b of the light guide plate 5 are provided at intervals S that are not affected by the heat radiation of the adjacent light emitting elements 60. . The light emitting element 60 is an LED as an example, and is held by a common substrate 61. As shown in FIG. 4, the light emitting element 60 is disposed so that the optical axis 60 a is incident substantially perpendicular to the light receiving surfaces 50 a and 50 b of the light guide plate 5. Further, the light emitting element 60 arranged on one light receiving surface 50a and the light emitting element 60 arranged on the other light receiving surface 50b are arranged so as to be displaced from each other so that the optical axes 60a do not overlap. Specifically, the light emitting element 60 disposed on the other light receiving surface 50b is positioned between the adjacent light emitting elements 60 disposed on the one light receiving surface 50a. The interval S that is not affected by the heat radiation of the adjacent light emitting elements 60 is, for example, about 8 mm. The interval S is appropriately changed according to the magnitude of the current flowing through the lighting circuit and the heat generation efficiency of the light emitting element 60.

FIG. 5 is an explanatory diagram showing the relationship between the distance from the LED and the air temperature at the distance. The light emitting element 60 in FIG. 5 is composed of LEDs. The horizontal axis indicates the distance (mm) from the LED. The vertical axis indicates the air temperature (° C.) at a distance from the LED. In the case of FIG. 5, the room temperature in the refrigerator compartment 20 is 3 ° C., and the heat generation temperature of the LED is 50 ° C. As shown in FIG. 5, the air temperature is significantly attenuated at a position 4 mm away from the LED. This is an attenuation factor of 61% compared to the air temperature directly above the LED. When the air temperature is 4 mm or more away from the LED, the air temperature attenuates to 1.6% every 2 mm. That is, in the case where the light emitting element 60 is an LED, the adjacent LEDs are spaced apart by an interval S of 8 mm or more so as not to exert a thermal influence between the LEDs so that the surrounding 4 mm spaces having a large heat generation effect do not overlap each other. It is desirable to do. In addition, when the heat_generation | fever temperature of LED is large and the difference with the room temperature of the refrigerator compartment 20 is large, it is necessary to provide the space | interval of LED further.

Further, as shown in FIG. 3, the light source body 6 is surrounded by a metal light-shielding member 8 except for the portion facing the light receiving surfaces 50a and 50b. The light shielding member 8 is provided to collect light emitted from the light source body 6 on the light receiving surfaces 50a and 50b to improve the incidence rate. The light shielding member 8 has a concave shape in which a concave portion extends along the longitudinal direction of the light guide plate 5, and is provided at both ends in the short direction of the light guide plate 5 so that the opening surface of the concave portion faces the light guide plate 5. Yes. In the light shielding member 8, the opening edge of the concave portion is in contact with the edge portion of the light guide plate 5, and the light source body 6 is accommodated in a space formed by the light guide plate 5 and the concave portion of the light shielding member 8. The bottom surface of the light shielding member 8 is in contact with the top surface of the illumination cover 9. The light shielding member 8 is formed of aluminum having a good thermal conductivity as an example.

FIG. 6 is an explanatory diagram showing the relationship between the lighting module and the lighting cover of the refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 6, the illumination cover 9 is formed with a plurality of ventilation holes 90 that allow the refrigerator compartment 20 and the storage portion 40 to communicate with each other in a range facing the light source body 6. The ventilation hole 90 is formed in order to dissipate the heat around the light emitting element 60 that has reached a high temperature. The vent hole 90 has, for example, a rectangular shape having a long side of about 8 mm and a short side of about 4 mm, and is formed immediately below each light emitting element 60 so that the optical axis 60a of the light emitting element 60 passes through the center of the hole. . However, the vent holes 90 may be circular or other shapes.

The thermal conductivity of the synthetic resin forming the lighting cover 9 is 0.2 to 0.3 W / m · K. On the other hand, the thermal conductivity of aluminum forming the light shielding member 8 is about 130 W / m · K. In the case where the heat generation of the light emitting element 60 is about 50 ° C., the room temperature of the refrigerator compartment 20 is about 3 ° C., the thickness of the light shielding member 8 is about 1 mm, and the thickness of the lighting cover 9 is about 2.5 mm. By forming the vent hole 90 as described above, the heat radiation efficiency (heat passage amount) can be improved by about 40 times.

By the way, in recent years, in order to increase the internal volume of the refrigerator 100, the heat insulating member provided between the inner box 10 and the outer box 11 of the refrigerator body 1 has been thinned and provided on the inner wall surface of the refrigerator compartment 20. The illumination module 4 to be manufactured is also required to be thin. In refrigerator 100 of the first embodiment, light guide plate 5 is formed in a belt shape and has

light receiving surface

50a or 50b on at least one side surface in the longitudinal direction, and a light source provided along

light receiving surface

50a or 50b of light guide plate 5 Since the illumination module 4 is made thin with the body 6, it can be arranged in a space-saving manner and can contribute to the expansion of the internal volume of the storage chamber 2.

Also, since the illumination module 4 is configured to reflect all the light emitted from the light source body 6 through the light guide plate 5 and illuminate the inside of the refrigerator compartment 20, the brightness is attenuated by the number of reflections. In the refrigerator 100 of the first embodiment, the light guide plate 5 has the

light receiving surface

50a or 50b on at least one side surface in the longitudinal direction, and the light emitting element 60 of the light source body 6 is disposed along the

light receiving surface

50a or 50b. For example, compared with the structure which arrange | positions a light emitting element in the transversal direction of a light-guide plate, many light emitting elements 60 can be arrange | positioned. Therefore, since this refrigerator 100 can illuminate the inside of the refrigerator compartment 20 as much as the light emitting elements 60 can be arranged, the visibility of stored items can be improved. In addition, since the refrigerator 100 reflects all the light emitted from the light source body 6 through the light guide plate 5, the distribution of light emission can be averaged, and a well-balanced brightness over the entire room. realizable.

Also, the light guide plate 5 of the refrigerator 100 according to Embodiment 1 has a second light emitting surface 52 that emits light incident from the

light receiving surface

50a or 50b formed on the other surface. The second light emitting surface 52 is provided with a reflecting member 7 that reflects light incident from the

light receiving surface

50 a or 50 b toward the first light emitting surface 51. Therefore, since this refrigerator 100 can illuminate the inside of the refrigerator compartment 20 more brightly, the visibility of stored goods can be improved more.

Also, in the lighting module 4, when the light emitting elements 60 arranged in a dense manner generate heat over a long period of time without being dissipated, the surroundings may become hot due to the heat and may break down. For example, the user forgets to close the refrigerator compartment door 30 and the lighting module 4 is lit for a long time. In the refrigerator 100 according to the first embodiment, since the plurality of light emitting elements 60 are arranged along the

light receiving surface

50a or 50b provided on the side surface in the longitudinal direction of the light guide plate 5, the influence of heat radiation of the adjacent light emitting elements 60 is affected. An interval S that is not received can be provided, and a space for radiating the heat of the light emitting element 60 that has generated heat can be secured. Therefore, this refrigerator 100 can suppress the situation where the periphery becomes high temperature even if the light emitting element 60 generates heat for a long time.

Further, the light source body 6 of the refrigerator 100 according to the first embodiment is surrounded by the light shielding member 8 except for the portion facing the light receiving surfaces 50a and 50b. In other words, the refrigerator 100 can block light leakage by the light shielding member 8, so that the light emitted from the light source body 6 can be collected on the light receiving surfaces 50a and 50b to improve the incidence rate. Therefore, the refrigerator 100 can effectively brighten the inside of the refrigerator compartment 20 with less light emission, and can enhance the light energy saving effect.

Further, in the refrigerator 100 according to the first embodiment, the concave storage portion 40 that stores the illumination module 4 is formed on the inner wall surface of the refrigerator compartment 20. The opening of the storage unit 40 is closed by a transparent illumination cover 9. Therefore, the refrigerator 100 according to Embodiment 1 has an inner wall surface of the refrigerator compartment 20 in a substantially flat state, so that the internal volume of the refrigerator compartment 20 can be increased and the design is excellent.

Further, the refrigerator 100 according to Embodiment 1 is made of a colored member having a high reflectance, and a holding member 41 that holds the lighting cover 9 is provided along the inner surface of the storage unit 40. The illumination module 4 is accommodated in a space surrounded by the illumination cover 9 and the holding member 41. Therefore, since this refrigerator 100 can reflect the light emitted from the light source body 6 toward the refrigerator compartment 20 without waste while holding the illumination cover 9 with the holding member 41, the refrigerator 100 can emit light with less light emission. Can be effectively brightened, and the light energy saving effect can be enhanced.

Further, the illumination cover 9 of the refrigerator 100 according to the first embodiment is formed with a vent hole 90 that allows the refrigerator compartment 20 and the storage unit 40 to communicate with each other in a range facing the light source body 6. Therefore, since the refrigerator 100 can dissipate the heat of the light emitting element 60 that has generated heat through the vent hole 90, even if the light emitting element 60 generates heat over a long period of time, it is possible to suppress a situation in which the surroundings become hot. it can.

FIG. 7 is a plan view showing a modification of the lighting module of the refrigerator according to Embodiment 1 of the present invention. As shown in FIG. 7, the refrigerator 100 according to the first embodiment may have a light receiving surface 50 a only on one side surface in the longitudinal direction of the light guide plate 5. In this case, the light source body 6 is provided only on the light receiving surface 50a.

Embodiment 2. FIG.
Next, a refrigerator according to Embodiment 2 of the present invention will be described based on FIG. 8 with reference to FIGS. FIG. 8 shows an illumination module for a refrigerator according to Embodiment 2 of the present invention, and is an enlarged view showing in detail the A part shown in FIG. In addition, about the structure same as the refrigerator 100 demonstrated in Embodiment 1, the same code | symbol is attached | subjected and the description is abbreviate | omitted suitably.

In the illumination cover 9 of the refrigerator according to the second embodiment, an uneven portion that diffuses across the optical axis 60 a of the light emitted from the first light emitting surface 51 of the light guide plate 5 on the surface facing the first light emitting surface 51. 91 is provided in a zigzag shape extending along the width direction (X direction) of the refrigerator body 1 and repeating triangular irregularities along the depth direction (Z direction) of the refrigerator body 1. The uneven portion 91 is not limited to a triangular shape as long as it has a shape that intersects and diffuses the optical axis 60 a of the light emitted from the first light emitting surface 51 of the light guide plate 5. It may be a shape or the like.

Also on the light guide plate 5 of the refrigerator according to the second embodiment, a second light emitting surface 52 that emits light incident from the light receiving surfaces 50a and 50b is formed on the other surface. The second light emitting surface 52 is provided with a reflecting member 7 that reflects the light incident from the light receiving surfaces 50 a and 50 b toward the first light emitting surface 51.

In the refrigerator according to the second embodiment, the light emitted from the first light emitting surface 51 of the light guide plate 5 is diffused in the width direction (X direction) of the refrigerator compartment 20 by providing the illumination cover 9 with the uneven portion 91. Can do. Therefore, since this refrigerator can enhance the effect of uniformly illuminating the inside of the refrigerator compartment 20, the visibility of stored items can be improved, and the user does not directly look at the strong light. Can be used with confidence.

Although the present invention has been described above based on the embodiment, the present invention is not limited to the configuration of the embodiment described above. For example, the lighting module 4 may be provided in a storage room 2 other than the refrigerator compartment 20. Moreover, the illumination module 4 is not limited to the structure provided in the top | upper surface of the refrigerator compartment 20, You may provide in a bottom face or a side surface. Further, the illumination module 4 may be configured without the second light emitting surface 52. In short, the present invention includes a range of design changes and application variations usually made by those skilled in the art without departing from the technical idea thereof.

1 Refrigerator body, 2 storage room, 3 door part, 4 lighting module, 5 light guide plate, 6 light source body, 7 reflecting member, 8 light shielding member, 9 lighting cover, 10 inner box, 11 outer box, 12 partition plate, 13 cooling Chamber, 14 cooler, 15 fan, 16 compressor, 17 condenser, 18 decompressor, 19 damper, 20 cold room, 20a shelf, 21 switching room, 22 ice making room, 23 freezer room, 24 vegetable room, 30 cold room Room door, 31 Switching room door, 32 Ice making room door, 33 Freezing room door, 34 Vegetable room door, 40 Storage part, 41 Holding member, 50a, 50b Light receiving surface, 51 First light emitting surface, 52 Second light emitting surface, 60 Light emitting element, 60a optical axis, 61 substrate, 90 vents, 91 irregularities, 100 refrigerator.

Claims

A refrigerator body having an opening on the front surface and having at least one storage chamber;
A door portion that freely opens and closes the opening of the storage chamber;
A lighting module provided in the storage room,
The lighting module includes:
A light guide plate formed in a strip shape and having a light receiving surface on at least one side surface in the longitudinal direction;
A light source body provided along the light receiving surface of the light guide plate,
In the light guide plate, the light receiving surface is disposed along the width direction of the refrigerator body, and a first light emitting surface that emits light incident from the light receiving surface is formed on one surface facing the storage chamber. There is a refrigerator.
In the light guide plate, a second light emitting surface for emitting light incident from the light receiving surface is formed on the other surface,
The refrigerator according to claim 1, wherein the second light emitting surface is provided with a reflecting member that reflects light incident from the light receiving surface toward the first light emitting surface.
The said light source body is the structure by which the several light emitting element arrange | positioned along the said light-receiving surface of the said light-guide plate was provided with the space | interval which does not receive to the influence of the heat radiation of an adjacent light emitting element. 2. The refrigerator according to 2.
The refrigerator according to any one of claims 1 to 3, wherein the light source body is surrounded by a light shielding member except for a portion facing the light receiving surface.
On the inner wall surface of the storage chamber, a concave storage portion for storing the lighting module is formed,
The refrigerator according to any one of claims 1 to 4, wherein an opening surface of the storage unit is closed by a transparent illumination cover.
The storage portion is made of a highly reflective colored member, and a holding member for holding the lighting cover is provided along the inner surface.
The refrigerator according to claim 5, wherein the lighting module is housed in a space surrounded by the lighting cover and the holding member.
The refrigerator according to claim 5 or 6, wherein the lighting cover has a vent hole communicating the storage chamber and the storage portion in a range facing the light source body.
In the lighting cover, an uneven portion that diffuses across the optical axis of the light emitted from the first light emitting surface extends along the width direction of the refrigerator main body on the surface facing the first light emitting surface. The refrigerator according to any one of claims 5 to 7, wherein unevenness is repeatedly provided along a depth direction of the refrigerator body.