WO2011105024A1

WO2011105024A1 - Refrigerator

Info

Publication number: WO2011105024A1
Application number: PCT/JP2011/000849
Authority: WO
Inventors: 雅司湯浅; 恵一高瀬; 利幸森内; 普文塚本
Original assignee: パナソニック株式会社
Priority date: 2010-02-26
Filing date: 2011-02-16
Publication date: 2011-09-01
Also published as: JP5674496B2; JP2011196675A; CN102762942B; CN102762942A

Abstract

Disclosed is a refrigerator (100) provided with a main box (101) having an opening on the front surface thereof. The refrigerator is provided with a first semiconductor light emitting element (210) having an illumination function having an optical axis oriented toward the back of the main box (101), said illumination function emitting light toward the back of the main box; and a second semiconductor light emitting element (310) having a function different from the illumination function. The second semiconductor light emitting element (310) also has an illumination function for emitting light toward the corners of the back of the main box.

Description

refrigerator

The present invention relates to a refrigerator, and more particularly, to a refrigerator including a semiconductor light emitting element that irradiates light in a warehouse.

Conventionally, a refrigerator equipped with a semiconductor light emitting element that irradiates light in a cabinet is known. Here, the semiconductor light emitting element has various functions. For example, Patent Document 1 discloses a photocatalyst device having a function of exciting a photocatalyst by irradiating the photocatalyst with light emitted from a semiconductor light emitting element. By using this photocatalytic device, deodorization and sterilization (antibacterial function) in the refrigerator can be performed.

Further, as another function of the semiconductor light emitting element, there is an illumination function that illuminates the interior brightly, and the semiconductor light emitting element can illuminate the entire depth direction of the refrigerator.

Japanese Patent No. 3912806

However, the conventional refrigerator has a problem that the illuminance at the corner in the back direction of the interior is lowered by the light emitted from the semiconductor light emitting element.

That is, in the semiconductor light-emitting element included in the photocatalyst device disclosed in Patent Document 1, it is not possible to illuminate the depth direction of the refrigerator for illumination, and even the semiconductor light-emitting element that illuminates the entire depth direction of the refrigerator The illuminance cannot be increased to the corners.

For this reason, in the conventional refrigerator, there is a problem that the illuminance at the corner in the back direction in the refrigerator becomes low, and in order to increase the illuminance to the corner, a semiconductor light emitting element for illumination that illuminates the corner is added It is necessary to prepare.

Then, this invention is made | formed in view of such a problem, and provides the refrigerator which can raise the illumination intensity of the corner of the back direction in a warehouse, without adding the semiconductor light-emitting device for illumination. For the purpose.

In order to achieve the above object, a refrigerator according to the present invention is a refrigerator including a main box body having an opening on the front surface, and has an optical axis facing the back direction of the main box body, and the back direction. And a second semiconductor light emitting element having a function different from the illumination function, and the second semiconductor light emitting element further includes light at corners in the back direction. It has a lighting function to irradiate.

According to this, the second semiconductor light emitting element having a function different from the illumination function irradiates light at the corner in the back direction. That is, the second semiconductor light emitting element provided for a purpose different from that for illumination can be used for illumination of corners in the back direction. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Also preferably, a reflection member that reflects the light emitted from the second semiconductor light emitting element is further provided, and the reflection member reflects the light so that the light reaches the corner.

According to this, the light reaches the corner in the back direction by reflecting the light emitted from the second semiconductor light emitting element by the reflecting member. In other words, since indirect light from the second semiconductor light emitting element can be used for lighting in the corners in the back direction, the light inside the refrigerator is not incident directly on the eyes of the user in front of the refrigerator. The corners in the back direction can be brightly illuminated. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

In addition, preferably, it further includes a duct cover that is attached to the inside of the main box and covers a front of a duct that forms an air passage that guides cool air, and the second semiconductor light emitting element is disposed behind the duct cover. The reflective member is provided in the duct cover.

According to this, the duct cover can be used as a reflecting member. For this reason, it is possible to increase the illuminance at the corners in the back direction in the cabinet without newly providing a reflecting member and without adding a semiconductor light emitting element for illumination.

In addition, preferably, a carrier supporting a photocatalyst is further provided in front of the second semiconductor light emitting element, and the second semiconductor light emitting element emits light to the carrier as a function different from the illumination function. Thus, it has a function of exciting the photocatalyst and an illumination function of irradiating the corner with the light that has passed through the carrier.

According to this, the second semiconductor light-emitting element has a function of exciting the photocatalyst by irradiating the support with light, and an illumination function of irradiating the light passing through the support to the corner in the interior direction Have That is, the second semiconductor light-emitting element provided for the purpose of deodorizing and sterilizing the inside of the refrigerator by the antibacterial function can be used for lighting the corners in the back direction. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Also preferably, the corner has a reflective surface that is inclined so as to allow the light irradiated by the second semiconductor light emitting element to reach the front.

According to this, the light irradiated by the second semiconductor light emitting element can be caused to reach the front by the reflection surface at the corner. That is, the light from the corner can be visually recognized from the front. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

In addition, preferably, a cover that covers the front of the second semiconductor light emitting element is further provided, and the cover has a peripheral portion that shines in front of the second semiconductor light emitting element by light emitted from the second semiconductor light emitting element. It has a hole that can be visually recognized.

According to this, it can visually recognize that the peripheral part of the hole which a cover has shines with the light which a 2nd semiconductor light-emitting device irradiates. That is, it is possible to brightly illuminate the corners in the back direction in the cabinet without direct light entering the eyes of the user in front of the refrigerator. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

According to the present invention, it is possible to provide a refrigerator capable of increasing the illuminance at the corner in the back direction in the cabinet without adding a semiconductor light emitting element for illumination.

FIG. 1 is a front view of the refrigerator in the embodiment of the present invention. FIG. 2 is a front view of the upper portion of the refrigerator in which the heat insulating door in the embodiment of the present invention is omitted. FIG. 3 is a vertical cross-sectional view of the upper portion of the refrigerator in which the heat insulating door in the embodiment of the present invention is omitted. FIG. 4 is a diagram illustrating the configuration of the first light emitting unit in the embodiment of the present invention. FIG. 5 is a diagram illustrating the configuration of the second light emitting unit in the embodiment of the present invention.

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

FIG. 1 is a front view of a refrigerator 100 according to an embodiment of the present invention.

As shown in the figure, the refrigerator 100 according to the present embodiment includes a storage compartment partitioned into a plurality of sections in the main box 101. Here, the main box 101 is a box having an opening on the front surface, and is provided with a heat insulating performance that blocks heat from entering and exiting the inside and outside of the refrigerator 100.

A plurality of compartments in the refrigerator 100 are divided into a refrigeration room 102, an ice making room 105, an ice making room 105 according to its function (cooling temperature), a switching room 106 in which the temperature in the warehouse can be changed, a vegetable room 104, Also referred to as the freezer compartment 103 or the like.

In the front opening of the refrigerator compartment 102, a rotary heat insulating door 107 filled with foam heat insulating material such as urethane is provided.

In addition, heat insulating doors are provided at the front openings of the ice making room 105, the switching room 106, the vegetable room 104, and the freezing room 103, respectively. Each of the storage chambers is sealed so that there is no leakage of cold air by these heat insulating doors.

FIG. 2 is a front view of the upper portion of the refrigerator 100 in which the heat insulating door in the embodiment of the present invention is omitted. That is, the figure shows a front view of the refrigerator compartment 102 portion.

FIG. 3 is a vertical cross-sectional view of the upper portion of the refrigerator 100 from which the heat insulating door according to the embodiment of the present invention is omitted. That is, this figure shows a longitudinal sectional view of a portion of the refrigerator compartment 102.

As shown in these drawings, the refrigerator 100 includes a duct 110, a duct cover 120, a first light emitting unit 200, and a second light emitting unit 300.

The duct 110 is made of, for example, a polystyrene foam having a heat insulating property, and is attached to the inside of the main box body 101 to form an air passage for guiding cold air. In the figure, the duct 110 forms an air passage W that guides cold air generated by a cooler (not shown) together with the inner surface portion of the main box body 101.

The duct cover 120 is a cover that covers the front of the duct. The duct cover 120 is also a cover that covers the front of the second light emitting unit 300. The duct cover 120 corresponds to “duct cover” and “cover” recited in the claims.

The duct cover 120 has a hole 121 in front of the second light emitting unit 300. The hole 121 is composed of a plurality of through holes having a diameter of about 2 mm arranged in the left-right direction of the refrigerator. In addition, the hole part 121 does not need to be arranged in the left-right direction of the refrigerator, and may be arranged in the vertical direction or a circular shape. Moreover, the hole diameter of the hole part 121 is not limited to 2 mm, What is necessary is just a small hole.

The first light emitting unit 200 is an apparatus that is disposed on the upper wall surface in front of the main box body 101 and has an illumination function that irradiates light in the depth direction of the main box body 101. Specifically, the first light emitting unit 200 is disposed in a recess formed in the upper wall surface in front of the main box body 101. The position of the first light emitting unit 200 is not particularly limited, and may be arranged at any position such as a side wall surface or a floor surface as long as light can be emitted in the depth direction of the main box body 101. .

The second light emitting unit 300 is a device that is provided on the upper part of the rear inner surface of the main box body 101 and has a function different from the illumination function. Specifically, the second light emitting unit 300 is provided near the outlet of the cold air passing through the air passage W to the refrigerator compartment 102 and has an antibacterial function. The second light emitting unit 300 also has an illumination function for irradiating light to the corners in the back direction of the main box body 101. The detailed configuration of the second light emitting unit 300 will be described later.

Next, the detailed configuration of the first light emitting unit 200 will be described.

FIG. 4 is a diagram illustrating the configuration of the first light emitting unit 200 in the embodiment of the present invention.

As shown in the figure, the first light emitting unit 200 includes a first semiconductor light emitting element 210 and a cover member 220.

The first semiconductor light emitting device 210 is a light emitting device that emits light and has an illumination function of irradiating light inside the main box 101. The first semiconductor light emitting element 210 is an LED (Light Emitting Diode) here, but is not limited to an LED as long as it can emit light.

Here, the first semiconductor light emitting device 210 has an optical axis facing in the back direction, and irradiates light in the back direction inside the main box 101. Specifically, as shown in the figure, the optical axis of the light emitted from the first semiconductor light emitting element 210 is the optical axis A. The vertical axis is the axis B. The optical axis A is inclined in the back direction from the axis B.

The cover member 220 is a flat resin cover that covers the front (the direction in which light is irradiated) of the first semiconductor light emitting element 210. Note that the shape and material of the cover member 220 are not limited to a flat resin, and any shape and material can be used as long as the light of the first semiconductor light emitting element 210 can be transmitted, such as a curved glass. It may be a material.

Next, the detailed configuration of the second light emitting unit 300 will be described.

FIG. 5 is a diagram illustrating the configuration of the second light emitting unit 300 in the embodiment of the present invention.

As shown in the figure, the second light emitting unit 300 includes a second semiconductor light emitting element 310 and a carrier 320.

The carrier 320 is a member that is disposed in front of the second semiconductor light emitting element 310 and that supports a photocatalyst, and also functions as a deodorizing and sterilizing filter. The photocatalyst is, for example, titanium oxide.

The second semiconductor light emitting element 310 emits light and irradiates the carrier 320 with light, so that it has an antibacterial function that is a function different from the illumination function, and the light that has passed through the carrier 320 is emitted from the main box 101. It is a light emitting element having an illumination function for irradiating the corners in the back direction.

That is, the second semiconductor light emitting element 310 has a function of exciting the photocatalyst by irradiating the support 320 with light. Here, the second semiconductor light emitting element 310 is a UV-LED that is a light emitting diode that emits ultraviolet light of 380 nm as excitation light for exciting the photocatalyst.

Then, the titanium oxide on the surface of the carrier 320 is excited by the light energy of the ultraviolet light emitted from the second semiconductor light emitting element 310, OH radicals are generated from moisture in the air, and the odor component captured by the carrier 320 Oxidative degradation of bacteria and lysis of bacteria are performed. Thereby, deodorization and sterilization are performed.

Further, the second semiconductor light emitting element 310 is disposed behind the duct cover 120.

The duct cover 120 includes a reflecting member 122 that reflects the light emitted from the second semiconductor light emitting element 310, and the reflecting member 122 reflects the light so that the corner of the main box body 101 in the depth direction. Let the light reach the part.

Specifically, as shown in the figure, the light emitted from the second semiconductor light emitting device 310 is incident on the carrier 320 along the light path P to excite the photocatalyst. Then, the light that has passed through the carrier 320 travels straight along the path P to the reflecting member 122. Then, the light that has reached the reflecting member 122 is reflected by the reflecting member 122 and travels straight to the corner 101 a in the back direction of the main box 101 along the path Q.

Here, the corner portion 101a has a reflective surface that is inclined so that the light emitted by the second semiconductor light emitting element 310 reaches the front. Here, the corner portion 101a has a curved reflecting surface having a circular cross section. For this reason, the light that has reached the corner 101 a is reflected by the corner 101 a and travels straight toward the front of the refrigerator 100 along the path R. As a result, the light reaches the eyes of the user in front of the refrigerator 100.

Further, the hole 121 of the duct cover 120 is a plurality of holes that are arranged in front of the second semiconductor light emitting element 310 and can be visually recognized so that the peripheral edge shines by the light irradiated by the second semiconductor light emitting element 310.

Specifically, as shown in the figure, the light emitted from the second semiconductor light emitting element 310 is irradiated to the hole 121 along the light path S. And the light irradiated to the hole part 121 makes the peripheral part of each hole of the hole part 121 light. Thereby, the user who is ahead of the refrigerator 100 can visually recognize that the peripheral part of each hole of the hole part 121 is shining.

As described above, according to the refrigerator 100 according to the present invention, the second semiconductor light emitting element 310 having a function different from the illumination function irradiates the corner 101a in the back direction of the main box 101 with light. That is, the second semiconductor light emitting element 310 provided for a purpose different from that for illumination can be used for illumination of the corner 101a in the back direction. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Further, the light emitted from the second semiconductor light emitting element 310 is reflected by the reflecting member 122, so that the light reaches the corner 101a in the back direction. That is, since indirect light from the second semiconductor light emitting element 310 can be used for illumination of the corner 101a in the back direction, without direct light incident on the user's eyes in front of the refrigerator 100, The inner corner 101a in the interior can be brightly illuminated. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Also, the duct cover 120 can be used as the reflecting member 122. For this reason, it is possible to increase the illuminance at the corners in the back direction in the cabinet without newly providing the reflecting member 122 and without adding a semiconductor light emitting element for illumination.

The second semiconductor light emitting element 310 has a function of exciting the photocatalyst by irradiating the support 320 with light, and illuminating the corner 101a in the interior direction with the light that has passed through the support 320. It has a function. That is, the second semiconductor light emitting element 310 provided for the purpose of deodorizing and sterilizing the refrigerator 100 can be used for lighting the corner 101a in the back direction by the antibacterial function. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Moreover, the light irradiated by the second semiconductor light emitting element 310 can be caused to reach the front by the reflection surface of the corner 101a. That is, the light from the corner 101a can be visually recognized from the front. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

Further, it can be visually recognized that the peripheral edge portion of the hole 121 included in the duct cover 120 is illuminated by the light emitted by the second semiconductor light emitting element 310. That is, it is possible to brightly illuminate the corner 101a in the back direction in the cabinet without direct light entering the eyes of the user in front of the refrigerator 100. For this reason, it is possible to increase the illuminance at the corners in the interior direction of the interior without adding a semiconductor light emitting element for illumination.

As mentioned above, although the refrigerator concerning the present invention was explained using the above-mentioned embodiment, the present invention is not limited to this.

That is, the embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

For example, in the present embodiment, the second light emitting unit 300 has an antibacterial function as a function different from the illumination function. However, the second light emitting unit 300 may have any function as long as the function is different from the illumination function obtained using the semiconductor light emitting element. Examples of functions different from the illumination function obtained by using the semiconductor light emitting element include a keeping function for keeping freshness of fruits and vegetables, an agrochemical removing function for removing agricultural chemicals attached to the fruits and vegetables, and a display function for displaying lamps.

Further, in the present embodiment, the light emitted from the second semiconductor light emitting element 310 is reflected by the reflecting member 122 to irradiate the corner 101a with light. However, the second semiconductor light emitting element 310 is disposed at a position where the corner 101a can be directly irradiated with light, and the light emitted from the second semiconductor light emitting element 310 is directly irradiated onto the corner 101a to brighten the corner 101a. It may be illuminated.

Further, in the present embodiment, the duct cover 120 includes the reflecting member 122. However, a reflection member may be provided separately from the duct cover 120, and light may be applied to the corner portion 101a by reflecting light to the reflection member.

Further, in the present embodiment, the corner portion 101a has a reflecting surface having a curved cross section. However, the corner 101a only needs to have a reflective surface that is inclined so that the light emitted by the second semiconductor light emitting element 310 reaches the front, and has, for example, a polygonal reflective surface even if the cross section is not curved. You may decide. Further, the corner portion 101a may not have an inclined reflecting surface. Even in this case, since the corner 101a is irradiated with light from the second semiconductor light emitting element 310, the illuminance of the corner 101a can be increased.

Further, in the present embodiment, the duct cover 120 is provided with the hole 121 in front of the second semiconductor light emitting element 310. However, the duct cover 120 may not include the hole 121.

In the present embodiment, the second semiconductor light emitting element 310 is a UV-LED that is an ultraviolet LED. However, the second semiconductor light emitting element 310 is not limited to a UV-LED, and may be a visible light LED such as a blue LED. Further, the second semiconductor light emitting element 310 is provided with a blue LED and a UV-LED. When the heat insulating door 107 of the refrigerator compartment 102 is closed, at least the UV-LED is irradiated and the heat insulating door 107 is opened. Indirect illumination may be performed by irradiating at least a blue LED.

The present invention can be used for a refrigerator.

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Main box body 101a Corner part 102 Refrigeration room 103 Freezing room 104 Vegetable room 105 Ice making room 106 Switching room 107 Thermal insulation door 110 Duct 120 Duct cover 121 Hole part 122 Reflecting member 200 First light emitting unit 210 First semiconductor light emitting element 220 Cover member 300 Second light emitting unit 310 Second semiconductor light emitting element 320 carrier

Claims

A refrigerator comprising a main box having an opening on the front surface,
A first semiconductor light emitting element having an optical axis facing the back direction of the main box body and having an illumination function of irradiating light in the back direction;
A second semiconductor light emitting element having a function different from the illumination function,
The second semiconductor light emitting element further has an illumination function of irradiating light to a corner in the depth direction.
Furthermore, a reflective member that reflects the light emitted by the second semiconductor light emitting element is provided,
The refrigerator according to claim 1, wherein the reflecting member causes the light to reach the corner by reflecting the light.
Furthermore, a duct cover that covers the front of a duct that is attached to the inside of the main box and forms a wind path that guides cold air is provided,
The refrigerator according to claim 2, wherein the second semiconductor light emitting element is disposed behind the duct cover, and the reflecting member is provided in the duct cover.
Furthermore, in front of the second semiconductor light emitting element, a support for supporting a photocatalyst is provided,
The second semiconductor light emitting element is
As a function different from the illumination function, it has a function of exciting the photocatalyst by irradiating the carrier with light,
The refrigerator according to any one of claims 1 to 3, wherein the refrigerator has an illumination function of irradiating the corner with light that has passed through the carrier.
The refrigerator according to any one of claims 1 to 4, wherein the corner has a reflective surface that is inclined so as to allow light emitted from the second semiconductor light emitting element to reach the front.
Furthermore, a cover for covering the front of the second semiconductor light emitting element is provided,
The cover according to any one of claims 1 to 5, wherein the cover has a hole in front of the second semiconductor light emitting element that can be visually recognized so that a peripheral edge is illuminated by light emitted from the second semiconductor light emitting element. refrigerator.