JP2009030918A - Direct cooling type refrigerator, and disinfecting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a direct cooling type refrigerator capable of keeping high deodorizing and disinfecting performance. <P>SOLUTION: This direct cooling type refrigerator comprising a heat insulating box 101, a heat insulating door 107 attached to an opening of the heat insulating box 101 so as to be openable and closable, and a cooler 110 for directly cooling air in the heat insulating box 101, further comprises a carrier 201 arranged in the heat insulating box 101, and carrying a photocatalyst, an irradiating means 202 for irradiating the carrier 201 with exciting light for exciting the photocatalyst, a blower fan 203 for distributing cold air in the heat insulating box 101 forcibly toward the carrier 201, a disinfecting device 200 having a base 205 forming a flow channel of air distributed by the blower fan 203, a cover member 206 covering the disinfecting device 200 mounted to the inner wall of the heat insulating box 101, and a lighting means 300 covered by the cover member 206 and lighting the inside of the heat insulating box 101. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a direct-cooling refrigerator that directly cools a storage chamber, and more particularly to a direct-cooling refrigerator and a sterilization apparatus that can disinfect and deodorize the storage chamber.

  Conventionally, for small refrigerators and refrigerators used in dry areas such as Europe, countermeasures for condensation in the storage room are not so important, so a direct cooling method that cools the air in the storage room directly with a cooling panel etc. is generally used It has been adopted. For example, Patent Document 1 discloses a refrigerator that employs a direct cooling method.

  FIG. 7 is a diagram schematically showing the direct cooling refrigerator from which the heat insulating portion is removed from the back.

  As shown in the figure, the direct cooling refrigerator 100 includes a cooling pipe 121 in a meandering manner inside the inner wall of the storage room. Then, the liquid coolant flows through the cooling pipe 121 at a low temperature, so that the air in the storage chamber is directly cooled.

  Moreover, in patent document 2, it is a direct-cooling type refrigerator, Comprising: The direct-cooling type refrigerator which can suppress propagation of bacteria and mold | fungi in a storage chamber is disclosed.

  FIG. 8 is a cross-sectional view of a direct cooling refrigerator having a function of suppressing the growth of bacteria and fungi.

As shown in the figure, in the direct cooling refrigerator 100, a sheet 122 containing an organic volatile antibacterial agent is attached to the ceiling in the storage room. Then, by gradually evaporating the organic volatile antibacterial agent from the sheet 122, it is intended to suppress the growth of bacteria and mold in the storage chamber.
Japanese Patent Laid-Open No. 7-120108 Japanese Patent Laid-Open No. 10-262629

  However, in the case of a direct-cooled refrigerator, for example, the air cooled at the back of the storage room has a high density and accumulates in the lower part of the storage room, resulting in temperature unevenness in the vertical direction in the storage room. have. In particular, when a shelf plate is provided to partition the storage chamber up and down and foods and the like are fully loaded, temperature unevenness in the storage chamber becomes remarkable.

  In addition, since air stagnates in the storage chamber, there is a problem that bacteria, molds, etc. propagate locally at high concentrations.

  Furthermore, there is a proposal to use an organic volatile antibacterial agent as a countermeasure against the bacteria and molds, but the evaporation amount of the antibacterial agent is limited. Therefore, it is necessary to periodically replace the antibacterial agent, which is troublesome. Further, in a direct-cooled refrigerator that cannot expect convection in the storage chamber, there is a concern that the antibacterial agent also stays in a part of the storage chamber and cannot exert an effect such as sterilization on the entire storage chamber. In addition, there is a problem in applying an organic antibacterial agent to a storage room for storing food.

  In addition, a cooling pipe is arranged on the back of the storage room, and a sheet containing an organic volatile antibacterial agent is arranged so as to almost cover the ceiling of the storage room. There is also a problem that it is difficult to select.

  The present invention has been made to solve the above-mentioned problems, and even in the case where there is no forced cold air circulation in a direct-cooled refrigerator, the effect of deodorization and sterilization is obtained over a wide range, and the storage room is illuminated. It aims to provide a direct cooling refrigerator that can.

  In order to achieve the above object, a direct cooling refrigerator according to the present invention is composed of a heat insulating material, and a box body that forms a storage chamber therein, and a door body that is attached to an opening of the box body so as to be freely opened and closed. A direct-cooled refrigerator comprising a cooling means for directly cooling the air in the box body, the carrier being disposed in the storage chamber and carrying a photocatalyst, and the excitation light for exciting the photocatalyst An irradiating means for irradiating the body, a blowing means for forcibly blowing the air in the storage chamber toward the carrier, and a flow path forming means for forming a flow path for the air blown by the blowing means. A fungus device, a cover member that covers the sterilizer attached to the inner wall of the box body, and an illumination unit that is covered by the cover member and illuminates the inside of the box body.

  Thereby, the sterilization apparatus and the illumination means are covered with the same cover member, so that sterilization and deodorization and illumination of the storage chamber can be performed in a compact state. Further, the heat generated by the illumination means can be effectively utilized for sterilization and deodorization. In addition, it is possible to share an electric system between the sterilization apparatus and the illumination means, and space saving and cost reduction can be achieved.

  As described above, the direct cooling refrigerator according to the present invention forcibly blows the air in the storage chamber to sterilize bacteria contained in the wind and releases the sterilized wind. Therefore, it is possible to sterilize the entire storage chamber while forcibly convection of the air in the storage chamber. Furthermore, since the interior of the storage room is illuminated by the illumination means covered with the cover member together with the sterilization apparatus, it is possible to provide a compact sterilization and illumination unit.

  In addition, the sterilization apparatus of the present invention can perform sterilization over the entire storage chamber while forcibly convection the air in the storage chamber. Furthermore, since the interior of the storage room is illuminated by the illumination means covered with the cover member together with the sterilization apparatus, it is possible to provide a compact sterilization and illumination unit.

  The direct-cooling refrigerator according to the present invention can provide a compact sterilization and lighting unit, so that the storage room can be used more widely and the convenience for the user is improved. It becomes possible.

  In addition, since the sterilization apparatus of the present invention can provide a compact sterilization and lighting unit, it is possible to provide a sterilization apparatus with improved usability.

  Next, an embodiment of a direct cooling refrigerator according to the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 is a front view of a direct-cooling refrigerator according to Embodiment 1 of the present invention.

  As shown in the figure, a direct-cooling refrigerator 100 according to the present embodiment is a direct-cooling refrigerator 100 having double doors, and is stored vertically in a heat insulating box 101 as a box body. It has a room.

  The storage compartments partitioned in the upper and lower parts of the direct cooling refrigerator 100 are referred to as a refrigerator compartment 102 and a freezer compartment 103 depending on the function (cooling temperature).

  The front opening of the refrigerator compartment 102 is provided with a rotary heat insulating door 107 filled with a foam heat insulating material such as urethane as a door body. Similarly, a heat insulating door 108 is provided on the front surface of the freezer compartment 103. Thus, the storage chamber is hermetically sealed so as not to leak cold air.

  The refrigerator compartment 102 is a storage compartment maintained at a low temperature that does not freeze for refrigerated storage. The lower limit of the specific temperature is usually set at 1 to 5 ° C.

  The freezer compartment 103 is a storage room set in a freezing temperature zone. Specifically, although it is normally set at −22 to −18 ° C. for frozen storage, it may be set at a low temperature of −30 or −25 ° C., for example, to improve the frozen storage state.

  FIG. 2 is a longitudinal sectional view schematically showing a direct cooling refrigerator in the present embodiment.

  The heat insulating box 101 is a box formed by filling a heat insulating material such as hard foamed urethane between the outer box and the inner box. This heat insulation box 101 insulates the inside of the heat insulation box 101 from the periphery.

  Inside the heat insulation box 101, a cooler 110 as a cooling means is embedded in the heat insulation box 101.

  The cooler 110 forms a cooling cycle together with the compressor 111 and the like, and the refrigerant inserted into the cooler 110 evaporates to take away the heat of the air inside the heat insulation box 101 and directly cool the inside of the heat insulation box 101. It is a member to do.

  The sterilization apparatus 200 and the illumination means 300 are attached to the ceiling of the heat insulation box 101. The sterilization apparatus 200 and the illumination unit 300 will be described later.

  Next, the sterilization apparatus 200 will be described.

  FIG. 3 is a cross-sectional view showing the sterilization apparatus and the illumination means attached to the direct cooling refrigerator.

  FIG. 4 is a bottom view showing the sterilization apparatus and the illumination means attached to the direct cooling refrigerator.

  The sterilization apparatus 200 according to the present embodiment forcibly sterilizes bacteria, spores and the like present in the air in the heat insulation box 101, and decomposes organic substances present in the air to deodorize them. This is a device that can be realized, and is a support 201 on which a photocatalyst is supported, an irradiation means 202 that irradiates the support with excitation light that excites the photocatalyst, a blower fan 203 as a blower, and an adsorption filter. The deodorizing filter 204, a base body 205 as a flow path forming means, and a cover member 206 are provided.

  The carrier 201 is a resin member made of a porous material that can come into contact with a large amount of air, and is a filter-like member that is formed by entanglement of fibers in which a photocatalyst is kneaded. Moreover, resin which can permeate | transmit the light of the wavelength which a photocatalyst is easy to excite is employ | adopted for resin which is a base material.

  The photocatalyst carried by the carrier 201 sterilizes bacteria in the air or oxidizes or decomposes odorous components (such as organic substances) in the air by irradiating with light of a specific wavelength. It is a catalyst that can be deodorized, and is a substance that is considered to be able to sterilize or deodorize based on the activation (for example, ionization or radicalization) of components in the air . Specific examples of the photocatalyst include silver oxide and titanium oxide.

  The wavelength of light necessary for silver oxide to exhibit functions such as sterilization is the blue region of visible light of about 400 nm to 580 nm. The wavelength of light necessary for titanium oxide to perform functions such as sterilization is 380 nm.

  The irradiation means 202 is a device that includes a light source 207 that can emit light including a wavelength that can excite the photocatalyst, a lighting substrate (not shown) for lighting the light source 207, and the like.

  The light source 207 may be any light source that emits a predetermined amount of light having a wavelength including the light having the above wavelength, and examples thereof include an ultraviolet lamp and a normal light bulb. In addition, when the photocatalyst is silver oxide, the use of an LED that emits blue light (470 nm) in the visible light region makes it possible to extend the life and cost. In addition, when the photocatalyst is titanium oxide, it is possible to adopt a UV-LED that emits UV light of 380 nm.

  In the case of the present embodiment, silver oxide is used as a photocatalyst, and three LEDs as light sources 207 of the irradiation unit 202 are arranged side by side on an elongated substrate.

  The blower fan 203 is configured such that a motor is arranged at the center, and a plurality of blades bent in a certain direction are radially attached to the rotation shaft of the motor, and the motor and the blades are housed in one casing. It is a thing. The blower fan 203 has a function of rotating the motor when the power is turned on, and the wings driven by the motor blow air in a certain direction.

  The deodorizing filter 204 has a function as an adsorption filter that adsorbs and removes odorous components present in the heat insulating box 101. Specifically, as the deodorizing filter 204, a member having a honeycomb structure made of activated carbon can be exemplified. Such a deodorizing filter 204 can adsorb odor components present in the air by allowing air to pass through the holes of the honeycomb structure.

  The base body 205 is a member formed of a resin capable of holding the carrier 201, the blower fan 203, and the deodorizing filter 204. A sterilization apparatus 200 is formed inside the heat insulation box 101 by screwing the base body 205 to which the carrier 201, the blower fan 203, and the deodorizing filter 204 are attached to a predetermined place of the heat insulation box 101. Is done.

  In a state in which the base body 205 is attached to the heat insulating box 101, the base body 205 has a portion other than a part where air is introduced into the base body 205 by the blower fan 203 and a part where the introduced air is led out to the outside of the base body 205. The base 205 has a structure in which air does not leak (is difficult to leak). Therefore, a flow path for air blown by the blower fan 203 is formed between the heat insulating box 101 and the base body 205.

  The base body 205 holds the carrier 201 so that the widest surface of the carrier 201 faces the irradiation means 202 attached to the heat insulating box 101 side.

  The substrate 205 is held away from the substrate 205 so that the carrier 201 does not directly contact the substrate 205. Specifically, the carrier 201 is attached to the tips of a plurality of thin columnar members extending from the base body 205. As a result, the carrier 201 is in a substantially floating state, and it is possible to bring almost the entire area of the carrier 201 into contact with the air introduced by the blower fan 203. Further, by adopting an aspect in which the other part of the base body 205 is not contacted, dew condensation generated on the base body 205 is prevented as much as possible from moving to the carrier 201. In addition, since the carrier 201 is held so as not to be blown by the air flowing through the carrier 201 or to bend due to gravity or the like, the surface of the carrier 201 is kept straight. It is possible to excite the photocatalyst carried on the carrier 201 efficiently without generating a shadow portion where light does not reach.

  The base body 205 holds the blower fan 203 and the deodorizing filter 204 so that they are laid down on the surface of the heat insulating box 101 while being attached to the heat insulating box 101. Thus, by making the ventilation fan 203 and the deodorizing filter 204 lie in the horizontal direction, the protrusion of the sterilization apparatus 200 into the heat insulating box 101 is reduced as much as possible, and a large volume of air Can be introduced into the sterilization apparatus 200, and the large volume of air can be passed through the deodorizing filter 204 having a large surface area.

  The part to which the sterilization apparatus 200 of the heat insulating box 101 is attached is formed with a recessed part 120 that is recessed, and the heat insulating material is thinner than other parts.

  By attaching the sterilization apparatus 200 to the recessed portion 120, the sterilization apparatus 200 can be prevented from protruding into the heat insulation box 101, and the volume phenomenon inside the heat insulation box 101 can be suppressed as much as possible. It becomes. In addition, since the heat insulating material is thin, the temperature of the sterilization apparatus 200 can be increased from other parts, and sterilization can be performed efficiently.

  An irradiation unit 202 is attached to the bottom of the recessed portion 120 of the heat insulation box 101, and the portion protrudes so that the distance between the carrier 201 and the irradiation unit 202 is reduced.

  The illumination means 300 is a device that illuminates the inside of the heat insulating box 101, and includes an illumination light source 301, an illumination substrate 302, and a lighting substrate (not shown). The illumination means 300 is attached to the heat insulating door 107 side from the sterilization device 200 of the recessed portion 120 to which the sterilization device 200 is attached. The illumination means 300 is attached to the heat insulation box 101 so that the inside of the heat insulation box 101 can be illuminated from the heat insulation door 107 side toward the back side of the heat insulation box 101.

  The illumination light source 301 is a light emission source for illuminating the inside of the heat insulating box 101, and white LEDs are employed as the illumination light source 301 in the present embodiment.

  The illumination board 302 is a printed board on which wirings for holding a plurality of illumination light sources 301 in a line and supplying power to the illumination light sources 301 are printed. The illumination substrate 302 is held by the recessed portion 120 by engaging with an engaging claw 303 planted in the recessed portion 120.

  The lighting substrate includes a circuit that converts the power supplied to the direct-cooling refrigerator 100 into power suitable for the illumination light source 301 and supplies the converted power. The lighting substrate also supplies power to the light source 207 that irradiates the support 201 with excitation light. The lighting board includes a circuit that detects opening / closing of the heat insulating door 107 and can supply power to the illumination light source 301 only when the heat insulating door 107 is in an open state.

  FIG. 5 is a bottom view showing a state in which the sterilization apparatus and the illumination unit are covered with a cover member.

  The cover member 206 is a plate-like member that can cover the sterilization apparatus 200 attached to the heat insulating box 101 and the entire illumination unit 300, and includes an air inlet 211, an air outlet 212, and a transparent window 213. And. A plurality of louvers for controlling the air flow are attached to the air inlet 211 and the air outlet 212. The cover member 206 covers the sterilization apparatus 200 and the illumination means 300 to improve design, and is disposed at a predetermined distance from the sterilization apparatus 200 and the illumination means 300. 200 and the illumination means 300 are separated from the cold inside the heat insulating box 101. Therefore, the cover member 206 prevents the sterilization apparatus 200 and the illumination unit 300 from condensing and lowering the performance. Moreover, since the cover member 206 also covers the illumination means 300 embedded in the heat insulation box 101, the heat generated from the illumination means 300 is introduced into the sterilization apparatus 200 rather than the heat insulation box 101. Therefore, the temperature of the air introduced into the sterilization apparatus 200 is slightly higher than the temperature of the air in the heat insulating box 101, and sterilization and deodorization are promoted.

  The transparent window part 213 is a part facing the illumination means 300 of the cover member 206, and the part is transparent.

  Except for the transparent window portion 213 of the cover member 206, the cover member 206 has a semi-transparent frosted glass shape, and the base body 205 has a semi-transparent frosted glass shape. As a result, part of the visible light emitted from the light source 207 and the reflected light of the visible light reflected inside the sterilization apparatus 200 leak into the heat insulating box 101. As a result, it can be confirmed that sterilization has been performed, and it is possible to confirm from the outside whether or not the irradiation means 202 has failed.

  About the direct cooling type refrigerator 100 comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  Air containing odor components (such as organic substances) and bacteria present inside the heat insulating box 101 passes through the air inlet 211 of the cover member 206 by the blowing force of the blower fan 203 and is sterilized via the blower fan 203. It is introduced inside the device 200. The introduced air passes so as to lick the surface having the largest area of the carrier 201. Here, since the flow path sandwiched between the irradiation means 202 and the base body 205 facing the irradiation means 202 is set narrower than the other portions, the air comes into contact with the carrier 201 in a large amount. Odor components and bacteria contained in the air are captured on the surface of the carrier 201. The trapped odor components and bacteria are deodorized and sterilized by oxidative degradation and sterilization by the normal (not photocatalytic) catalytic action of silver oxide. As a result, the odor decomposition and sterilization action is exerted by the action of silver oxide even when light is not irradiated, so the amount of light irradiation and time can be reduced while ensuring the desired deodorization and sterilization effect, The life of the irradiation means can be prolonged and the energy saving effect can be enhanced. Furthermore, the light energy (blue or ultraviolet light) emitted from the light source 207 excites silver oxide having an absorption spectrum in these wavelength regions with the light energy of blue light, and the photocatalyst on the surface of the support 201 is excited. . When the photocatalyst is excited, OH radicals are generated from moisture in the air, and are captured by the carrier 201 or oxidative decomposition of odor components existing in the vicinity of the carrier 201 and lysis of bacteria.

  Furthermore, odor components that could not be decomposed on the surface of the carrier pass through the holes of the deodorizing filter 204 having a honeycomb structure together with air, and are adsorbed and held by the deodorizing filter 204.

  Thus, the air that has passed through the sterilization apparatus 200 becomes clean air that has been deodorized and sterilized, and is blown out from the air outlet port 212 of the cover member 206 into the heat insulating box 101. Therefore, if the sterilization is continued, the number of bacteria in the entire heat insulating box 101 can be reduced, and the odor component can be reduced.

  On the other hand, in the heat insulation box 101, the overall convection of air is promoted by introducing air into the sterilization apparatus 200 and derivation of air from the sterilization apparatus 200. Therefore, it is possible to prevent cold air from accumulating at the bottom of the heat insulation box 101 and to make the temperature inside the heat insulation box 101 uniform. Further, the OH radicals generated by the sterilization apparatus 200 convect with the air inside the heat insulation box 101 and also deodorize and sterilize within the heat insulation box 101.

  As described above, the direct cooling refrigerator can be physically sterilized and deodorized by the sterilization apparatus 200 without using an organic sterilizing agent or the like. It is no longer necessary to consider the effects of the organic disinfectant on the human body. Further, since the photocatalyst can be sterilized and deodorized without changing the photocatalyst itself, the effect can be maintained semipermanently.

  The illumination unit 300 is turned on upon detection that the heat insulating door 107 is opened. When the lighting means 300 is turned on, light is irradiated from the heat insulating door 107 side toward the inner side of the heat insulating box 101, so the front of the stored item stored in the heat insulating box 101 is illuminated, and the stored item is very It becomes easy to see.

  Note that the surface having the largest area of the carrier 201 may be held parallel to the vertical surface. If the carrier is arranged in this way, even when the carrier 201 is condensed, the moisture condensed on the surface with the largest area is pulled downward by gravity and the portion with the largest area is cut off. . Therefore, it becomes possible to sterilize and deodorize the branched air without being obstructed by the condensed moisture by the photocatalyst.

  In the above embodiment, the irradiation means 202 and the illumination means 300 are directly attached to the heat insulation box 101, and the flow path is formed by the heat insulation box 101 and the base body 205. However, the present invention is not limited to this. Absent. For example, as shown in FIG. 6, the irradiation unit 202, the carrier 201, the blower fan 203, and the illumination unit 300 are attached to a box-shaped housing, and as a unit-shaped illumination and sterilization apparatus that is detachable from the heat insulation box 101 It doesn't matter. By doing in this way, attachment and detachment of the lighting and the sterilization apparatus to the direct cooling refrigerator are facilitated.

  A direct cooling refrigerator according to the present invention includes a heat insulating box body 101 as a box body that is formed of a heat insulating material and forms a storage chamber therein, a door body that is attached to an opening of the box body so as to be opened and closed, and a box. A direct-cooling refrigerator having a cooling unit 110 as a cooling means for directly cooling the air inside the main body, which is arranged in a storage chamber and carries a photocatalyst and a excitation light that excites the photocatalyst An irradiation unit 202 that irradiates the body 201, a blower fan 203 that is a blowing unit that forcibly blows air in the storage chamber toward the carrier 201, and a flow that forms a flow path of air blown by the blowing unit A sterilization apparatus 200 having a base body 205 as a path forming means, a cover member 206 covering the sterilization apparatus 200 attached to the inner wall of the box body, and an illumination for illuminating the inside of the box body covered by the cover member 206 And it means 300.

  Thereby, the sterilization apparatus 200 and the illumination means 300 are covered with the same cover member 206, so that sterilization, deodorization, and illumination of the storage chamber can be performed in a compact state. In addition, the heat generated by the illumination unit 300 can be effectively used for sterilization and deodorization. Moreover, it becomes possible to share the electric system of the sterilization apparatus 200 and the illumination means 300, and space saving and cost reduction can be achieved.

  Moreover, it is preferable that the sterilization apparatus 200 is attached to the ceiling surface of the box body, and the illumination unit 300 is attached to the door body side from the sterilization apparatus 200.

  Moreover, it is preferable that the irradiation means 202 has directivity in the light irradiation direction and is attached to the box body so that the light is directed from the door body side to the back side of the box body.

  As a result, when the door is opened, the food in the storage room is illuminated from the front side, so that the food can be clearly recognized.

  Moreover, it is preferable that the illumination means 300 is attached to the recessed part provided in a box main body.

  This makes it possible to illuminate the storage room without significantly sacrificing the capacity of the storage room.

  As described above, the direct cooling refrigerator according to the present invention forcibly blows the air in the storage chamber to sterilize bacteria and the like contained in the wind, and releases the sterilized wind. Therefore, it is possible to sterilize the entire storage chamber while forcibly convection of the air in the storage chamber. Furthermore, since the interior of the storage room is illuminated by the illumination means covered with the cover member together with the sterilization apparatus, it is possible to provide a compact sterilization and illumination unit.

  The present invention is applicable to a direct cooling refrigerator.

Front view of direct cooling refrigerator in embodiment 1 of the present invention Longitudinal sectional view schematically showing a direct cooling refrigerator in the same embodiment Sectional drawing which shows the disinfection apparatus of the state attached to the direct-cooling type refrigerator in the same embodiment, and an illumination means The bottom view which shows the sterilization apparatus of the state attached to the direct-cooling refrigerator in the same embodiment, and an illumination means The bottom view which shows the state which covered the disinfection apparatus in the embodiment, and the illumination means with the cover member Sectional drawing which shows typically the direct-cooling type refrigerator provided with the sterilization apparatus of another aspect in the embodiment. Perspective view of main part of direct cooling refrigerator showing conventional example. Cross-sectional view of a direct cooling refrigerator showing another conventional example

Explanation of symbols

100 Direct cooling refrigerator 101 Heat insulation box (box body)
102 Cold room (storage room)
103 Freezer room (storage room)
107,108 Thermal insulation door (door body)
110 Cooler (cooling means)
DESCRIPTION OF SYMBOLS 111 Compressor 120 Concave part 200 Disinfection apparatus 201 Carrier 202 Irradiation means 203 Blower fan (blower means)
204 Deodorizing filter 205 Base body (flow path forming means)
206 Cover member 207 Light source 211 Air inlet port 212 Air outlet port 213 Transparent window portion 300 Illuminating means 301 Illuminating light source 302 Illuminating substrate 303 Engaging claw

Claims (5)

  Direct cooling comprising a box body that is formed of a heat insulating material and forms a storage chamber therein, a door body that is openably and closably attached to an opening of the box body, and a cooling means that directly cools the air in the box body A refrigerator that is disposed in the storage chamber and carries a photocatalyst; irradiation means for irradiating the support with excitation light that excites the photocatalyst; and air in the storage chamber to the carrier A sterilizing apparatus having a blowing means forcibly blowing air, a flow path forming means for forming a flow path of air blown by the blowing means, and a cover covering the sterilizing apparatus attached to the inner wall of the box body A direct cooling refrigerator comprising a member and illumination means that is covered by the cover member and illuminates the inside of the box body.   2. The direct cooling refrigerator according to claim 1, wherein the sterilization apparatus is attached to a ceiling surface of the box body, and the illumination unit is attached to a door body side from the sterilization apparatus.   The direct cooling refrigerator according to claim 2, wherein the irradiating means has directivity in the light irradiation direction, and is attached to the box body so that the light is directed from the door body side to the back side of the box body.   The direct-cooling refrigerator according to claim 1, wherein the illumination unit is attached to a recessed portion provided in the box body.   Direct cooling comprising a box body that is formed of a heat insulating material and forms a storage chamber therein, a door body that is openably and closably attached to an opening of the box body, and a cooling means that directly cools the air in the box body. A sterilization apparatus attached to a refrigerator, comprising: a support on which a photocatalyst is supported; irradiation means for irradiating the support with excitation light that excites the photocatalyst; and air in the storage chamber toward the support. Air supply means for forcibly blowing air, flow passage forming means for forming a flow passage of air blown by the blower means, and illumination means for illuminating the inside of the box body, the carrier, and the irradiation means And a ventilation means is the sterilization apparatus attached to the said flow-path formation means.

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