JP3863797B2 - Refrigerator with deodorizing function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a refrigerator with a deodorizing function, and more particularly to a refrigerator having excellent deodorizing properties and bactericidal properties and reducing power consumption.
[0002]
[Prior art]
It is known to combine a filter using an ultraviolet lamp and a photocatalyst to decompose and deodorize odor components in the air passing through the filter.
[0003]
FIG. 5 shows an example of a filter in which a corrugated type air passage using a photocatalyst is configured. The filter 1 has a structure in which corrugated paper sheets in which horizontal portions and corrugated portions are alternately overlapped are laminated. On the surface layer of this filter, an adsorbent such as activated carbon carrying a photocatalyst is applied or kneaded.
[0004]
FIG. 6 shows an example of an apparatus for deodorizing by decomposing odor components in the air by combining an ultraviolet lamp and the filter. Reference numerals 1 and 1 denote the filters, which show a cross section when the ventilation path is formed obliquely with respect to the air flow. Reference numeral 2 denotes an air duct, in which the filters 1 and 1 are arranged with a predetermined interval. An ultraviolet lamp 3 is arranged between the filters 1 and 1. For example, the ultraviolet lamp 3 emits ultraviolet rays in the vicinity of 360 nm. The ultraviolet light from the ultraviolet lamp 3 activates the photocatalysts of the filters 1 and 1 to decompose and deodorize odor molecules in the air passing through the ventilation passages of the filters 1 and 1.
[0005]
[Problems to be solved by the invention]
However, since this lamp is a straight tube type, there is a difference in the distance to each part of the filter, that is, unevenness in the irradiation intensity of ultraviolet rays, resulting in a part where activation of the photocatalyst is insufficient and poor deodorization efficiency. There was a problem that part was made.
Moreover, there are problems that the life of the UV lamp decreases and the power consumption increases when the UV lamp is continuously irradiated with the UV lamp. Considering this problem, the UV irradiation is stopped or irradiated intermittently. However, when the ultraviolet irradiation was stopped, the photocatalyst was not activated, and there was a problem that deodorization could not be performed.
[0006]
The object of the present invention is to solve these conventional problems, and during UV irradiation, the UV irradiation intensity unevenness is suppressed and the photocatalyst is activated uniformly and sufficiently to efficiently deodorize and sterilize the UV. The object of the present invention is to provide a refrigerator that can be deodorized while intermittently performing irradiation and not performing ultraviolet irradiation.
[0007]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have obtained an ultraviolet lamp having a planar shape, and a odor molecule in the air that passes through the ventilation path of the photocatalyst filter in the atmosphere of the photocatalyst and the warehouse. The present inventors have found that the problem can be solved by using a combination with a photocatalytic filter provided with an oxidation catalyst having a function of oxidatively decomposing water, and the present invention has been completed.
[0008]
The refrigerator with a deodorizing function according to claim 1 of the present invention for solving the above-described problem has a door that can be opened and closed on the front surface, and has a plurality of shelves inside so that the object to be cooled can be stored. When,
After sucking the air in this warehouse and cooling it with a cooler, an air path for discharging into the warehouse from the upper side of the upper shelf in the warehouse,
A blower provided in the air passage and forcibly circulating the cooled air into the cabinet;
A refrigerator provided with a planar ultraviolet radiation lamp provided on the windward side of the cooler in the air passage and a photocatalytic filter having a corrugated type or honeycomb type air passage within the irradiation range of the ultraviolet radiation lamp. And
On the surface layer of the photocatalyst filter, a photocatalyst having a function of decomposing odor molecules in the air passing through the ventilation path when excited by ultraviolet irradiation and an odor in the air passing through the ventilation path in the atmosphere in the air path oxidation catalyst having a function of decomposing molecule Ri Contact is provided a catalyst composition supported on the adsorbent, and the surface of the refrigerating chamber side of the planar ultraviolet radiation lamp as the visible light is irradiated It is configured .
[0009]
The refrigerator with a deodorizing function according to claim 2 of the present invention is the refrigerator according to claim 1, wherein the adsorbent is a hydrophobic zeolite having a Si: Al ratio of 50 or more.
[0010]
The refrigerator with a deodorizing function according to claim 3 of the present invention is characterized in that in the refrigerator according to claim 1 or 2, the oxidation catalyst is an oxidation catalyst selected from bromine and iodine.
The refrigerator with a deodorizing function according to claim 4 of the present invention is the refrigerator according to any one of claims 1 to 3, wherein the planar ultraviolet radiation lamp is installed in a back plate of a refrigerator compartment, It is comprised so that visible light may be irradiated to the refrigerator compartment side.
[0011]
Since the refrigerator with a deodorizing function of the present invention uses a flat ultraviolet radiation lamp instead of using a conventional straight tube ultraviolet lamp, the distance to each part of the filter is almost uniform, and the irradiation intensity of ultraviolet rays on the photocatalyst is increased. Since it becomes almost uniform, uneven activation of the photocatalyst can be suppressed and deodorization efficiency and sterilization efficiency can be improved.
Furthermore, the refrigerator with a deodorizing function of the present invention includes a photocatalyst having a function of decomposing odorous molecules in the air passing through the ventilation path by being excited by ultraviolet irradiation at least on a surface layer of the photocatalytic filter, and an atmosphere in the air path. Since the catalyst composition is provided with an adsorbent loaded with an oxidation catalyst having a function of decomposing odorous molecules in the air passing through the ventilation path, the photocatalyst is suppressed during the irradiation with ultraviolet rays while suppressing unevenness in the irradiation intensity of the ultraviolet rays. It is possible to deodorize and sterilize efficiently by evenly and sufficiently activating the lamp, and deodorizing while not irradiating ultraviolet rays by intermittently irradiating ultraviolet rays, extending the life of ultraviolet lamps and reducing power consumption. Can be planned.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described in detail with reference to FIGS.
FIG. 1 is a cross-sectional explanatory view of a refrigerator compartment portion of a refrigerator with a deodorizing function of the present invention. FIG. 2 is an explanatory view of the back plate of the refrigerator of the present invention shown in FIG. 1, and FIG. 3 is a partially enlarged view of FIG.
[0013]
In the figure, 10 is a household refrigerator. The refrigerator 10 for home use is arranged in the order of the refrigerator compartment R (refrigeration temperature zone area), the vegetable compartment refrigerator compartment V (refrigeration temperature zone area), and the freezer compartment (not shown) from the top. This refrigerator 10 has a refrigeration cycle including at least a compressor, a condenser, and an evaporator, and has two evaporators (eva) with different evaporation temperatures, and is called a two-eva type. A refrigerating evaporator (hereinafter referred to as a cooler 17) for cooling the refrigerating temperature zone area and a refrigerating evaporator (cooler) (not shown) for cooling the refrigerating temperature zone area are provided.
[0014]
A plurality of shelves 11 are provided in the cabinet so that an object to be cooled can be stored.
Reference numeral 12 denotes an outer box, reference numeral 13 denotes an inner box, and reference numeral 14 denotes a heat insulating material filled with foam between the two (12, 13).
[0015]
Reference numeral 15 denotes a revolving door for a refrigerating room that is provided on the front surface of the household refrigerator 10 and opens and closes around a rotating shaft provided on one side. Reference numeral 16 denotes a back plate of the refrigerator compartment. The back plate 16 forms an air passage 20 for circulating air in the refrigerator between the back plate 16 and the inner box 13 of the refrigerator 10. A cooler 17 for the refrigerator compartment, a fan 18 for circulating the air in the refrigerator, and an interior lamp 19 are installed in the air passage 20, and the cool air cooled by the cooler 17 through the air passage 20 is supplied to the fan. 18 is discharged from the upper side of the upper shelf 11 in the refrigerator to the refrigerator compartment.
[0016]
Reference numeral 21 denotes a heat insulating material that suppresses low temperature cold (cold air) of the fan 18 and the cooler 17 from being transmitted to the refrigerator compartment on the inner box 13 side of the back plate 16.
[0017]
Reference numeral 22 denotes a defrosting heater, which defrosts the cooler 17 by heating the cooler 17 from below. Reference numeral 23 denotes a return duct that constitutes a part of the air passage 20 for circulating the return air in the refrigerator compartment that has passed through the refrigerator compartment and the vegetable compartment to the cooler 17.
[0018]
Reference numeral 24 denotes a planar ultraviolet radiation lamp that irradiates ultraviolet rays having a wavelength of 360 nm, and here has a planar shape of 30 mm × 150 mm. The flat ultraviolet radiation lamp 24 is fitted into the back plate 16 so as to irradiate the duct 23 with ultraviolet rays and irradiate visible light on the refrigerator compartment side. A reflective material D capable of reflecting ultraviolet rays such as aluminum for preventing deformation and deterioration of the resin of the inner box 13 due to ultraviolet irradiation is attached to the ultraviolet irradiation range in the duct 23 (see FIG. 3).
[0019]
Note that the light energy of the light source used for light irradiation in the present invention has the ability to excite the photocatalyst and mainly decompose the organic matter of the odor component, that is, light energy having a wavelength corresponding to the excitation of the photocatalyst. In this case, it is desirable to irradiate light having a visible wavelength or an ultraviolet wavelength. Examples of such a light source include light emitted from a mercury lamp, light generated from a filament lamp such as a halogen lamp, short arc canon light, semiconductor laser beam, ultraviolet lamp, black light, fluorescent lamp (for example, cold cathode fluorescent lamp), blue LED or Artificial light sources such as LEDs such as ultraviolet LEDs may be mentioned. One or more of these may be used in combination.
[0020]
FIG. 2 shows a back plate 16 and a planar ultraviolet radiation lamp 24.
In this lamp 24, the light irradiation surface is formed of ordinary glass (soda glass), but only the ultraviolet irradiation surface 24uv on the side facing the photocatalytic filter 25 is formed of quartz glass. Therefore, normal visible light is irradiated from the surface 24d on the refrigerator compartment side due to the passing wavelength characteristic, harmful ultraviolet rays are not irradiated (blocking harmful ultraviolet rays of 300 nm or less), and ultraviolet rays are irradiated from the ultraviolet irradiation surface 24uv. Irradiated.
[0021]
Reference numeral 25 denotes a photocatalytic filter. The surface layer of this photocatalytic filter has at least a photocatalyst (titanium oxide, etc., to be described later) adsorbent such as hydrophobic zeolite (crystalline aluminosilicate), which will be described later, and the air passage without irradiation with ultraviolet rays. The catalyst composition carrying the oxidation catalyst described later having a function of decomposing odor molecules in the air passing through the ventilation path of the photocatalytic filter 25 in the atmosphere is applied or kneaded. .
[0022]
The adsorbent used in the present invention adsorbs bacteria, odor molecules, harmful substances, and the like, and is, for example, an inorganic substance such as activated carbon, apatite, sepiolite, or zeolite, or an organic substance such as silk fiber. Among these, hydrophobic zeolite and the like having a low water absorption and high hydrophobicity can be preferably used. For example, those having a mass increase rate of 5% or less in a 100% humidity atmosphere can be preferably used. This is because, when the water absorption rate is high, water is absorbed and the adsorptivity of odorous molecules is lowered and deteriorated.
[0023]
Also, a highly hydrophobic zeolite with a Si: Al ratio (Kayban ratio) of 50 or more, preferably about 60 to 70 or more, better adsorbs odorous molecules, whether or not moisture is present in the atmosphere. Therefore, the adsorbent can be preferably used in the present invention.
[0024]
The photocatalyst used in the present invention promotes the catalytic reaction by irradiation with light, and the type thereof is not limited. For example, titanium oxide (TiO ₂ ), iron oxide (Fe ₂ O ₃ ), Tungsten oxide (WO ₃ ), tin oxide (SnO ₂ ), bismuth oxide (Bi ₂ O ₃ ), nickel oxide (NiO), strontium titanate (SrTiO ₃ ), silicon oxide (SiO ₂ ), molybdenum sulfide (MoS ₂ ) N-type and P-type semiconductors such as indium phosphide (InP), gallium phosphide (GaP), and indium lead (InPb), or platinum (Pt), rhodium (Ru), niobium for higher activity. (Nb), copper (Cu), tin (Sn), ruthenium oxide (RuO _2), the semiconductor carrying the metal or metal oxides such as nickel oxide (NiO) Body photocatalyst and ruthenium (Ru) complex such as a ruthenium bipyridyl complexes, porphyrin compounds, include molecules photocatalyst such Kurorofuiru. In the present invention, one or more of these photocatalysts can be used.
[0025]
Among these, anatase type titanium oxide can be preferably used.
As a preparation method of the photocatalyst, in the case of a solid photocatalyst, in addition to commercially available products, high-temperature baking of metals, electrolytic oxidation, chemical vapor deposition, vacuum vapor deposition, coating, coprecipitation, evaporation oxidation methods such as metal halides, etc. Examples of the preparation can be given.
[0026]
The oxidation catalyst used in the present invention has a function of decomposing odor molecules in the air passing through the air passage of the photocatalyst filter in the atmosphere in the air passage without irradiating with ultraviolet rays, and has an odor like a photocatalyst. Even if the molecule can be completely decomposed to water and carbon dioxide, or the odor molecule can be decomposed to a molecule with little or no odor, the type is particularly limited Specifically, for example, copper oxide, zinc oxide, manganese oxide, calcium oxide, halogens such as bromine and iodine, or a combination of two or more thereof can be given.
[0027]
Among these, halogens such as bromine and iodine have a function of decomposing odor molecules in the air passing through the ventilation path of the photocatalytic filter in the atmosphere in the air path, and can also decompose plant hormones such as ethylene. It can be preferably used in the present invention.
[0028]
For example, manganese oxide, which is an example of an oxidation catalyst used in the present invention, can decompose methyl mercaptan in the air circulating in the atmosphere in the chamber into methyl disulfide without performing ultraviolet irradiation. Methyl mercaptan is a very strong odorous molecule with an odor threshold of 0.000070, while methyl disulfide is a weak odorous molecule with an olfactory threshold of 0.0022. Decomposing methyl mercaptan to methyl disulfide alone has the effect of significantly reducing odors, but when activating the photocatalyst by UV irradiation to deodorize this, compared to completely decomposing methyl mercaptan. Methyl disulfide is easily completely decomposed and is not brominated.
[0029]
The photocatalyst, oxidation catalyst, type of adsorbent used in the present invention, particle size, mixing ratio of each, etc. vary depending on the type and amount of odor molecules, the type and amount of bacteria, etc. It is preferably determined by appropriate control or selection, and is not particularly limited.
[0030]
The method for supporting the photocatalyst and the oxidation catalyst on the adsorbent may be a known method and is not particularly limited.
[0031]
In the present invention, it is preferable that at least a photocatalyst and an oxidation catalyst are supported on an adsorbent such as hydrophobic zeolite, and this catalyst composition is fixedly provided on the surface layer of the photocatalytic filter using a binder. The binder may be organic, inorganic, or a combination thereof as long as it is transparent so that it can transmit ultraviolet light and can be stably used with little deterioration due to ultraviolet light. is not. Inorganic substances can be preferably used because they are less susceptible to deterioration by ultraviolet rays. Examples of the binder preferably used in the present invention include glass and water glass.
[0032]
The photocatalyst filter 25 has a structure in which corrugated cardboard sheets each having a corrugated type air passage are laminated, and the filter layer on which the photocatalyst and the oxidation catalyst are supported on the zeolite adsorbent is a binder. Is applied or kneaded with or without use. The photocatalytic filter 25 may have a honeycomb-type ventilation path.
[0033]
The photocatalytic filter 25 is disposed below the defrosting heater 22 in a bent portion C where the duct 23 bends, and the ventilation path is inclined so as to match the passage direction of the cold air. For this reason, the inclination of the ventilation path of the photocatalytic filter 25 matches the inclination of the duct 23 in the bent portion C (or the inclination of the ventilation path of the photocatalytic filter 25 is the cold air in the ventilation duct 23 housing the photocatalytic filter 25. Suitable for the direction of air flow). For this reason, the ventilation resistance with respect to the cool air of the photocatalyst filter 25 can be suppressed, and the flow of the cool air is hardly deteriorated. In addition, the reflective material D such as aluminum that is affixed in the duct reflects ultraviolet rays and irradiates the opposite side of the filter 25 to irradiate the ultraviolet rays, so that the photocatalyst can be activated and has a deodorizing effect and a bactericidal effect. Can be raised.
[0034]
Next, the deodorizing action will be described.
When the fan 18 of the refrigerator 10 is activated and the cool air in the refrigerator is circulated to the air passage 20, odor molecules in the cool air (for example, organic compound molecules such as ammonia, acetaldehyde, methyl mercaptan, hydrogen sulfide, formaldehyde, and ethylene) are also simultaneously produced. It circulates and flows. The odorous molecules are collected by being adsorbed by the adsorbent when passing through the photocatalytic filter 25. And it decomposes | disassembles by the photocatalyst excited with the ultraviolet-ray from the ultraviolet radiation lamp 24. FIG.
Here, the wavelength of the ultraviolet light is 360 nm, but this wavelength may be changed to a short wavelength to have a bactericidal action. For example, when the lamp 24 having an ultraviolet wavelength of 254 nm is selected, the odor molecules collected by the adsorbent of the photocatalytic filter 25 are decomposed by the photocatalyst as in the case of 360 nm. Moreover, if it becomes 254 nm, there exists a bactericidal action and it becomes possible to sterilize with an ultraviolet-ray. Bacterial debris collected by the adsorbent of the photocatalytic filter 25 and killed by ultraviolet rays is decomposed by the photocatalyst. Further, if the wavelength of ultraviolet rays is 185 nm, not only ultraviolet rays but also ozone can be generated.
However, since ozone is toxic, it is preferable to control so that the concentration in the circulated cold air is about 0.1 ppm or less by adsorption and removal.
[0035]
In the refrigerator 10 of the present invention, the odor molecules in the cold air are decomposed by the oxidation catalyst of the photocatalytic filter 25 even when the ultraviolet irradiation from the ultraviolet radiation lamp 24 is stopped. Therefore, the refrigerator 10 of the present invention detects, for example, a strong odor object to be cooled with a sensor and activates the ultraviolet radiation lamp 24 to irradiate ultraviolet rays, or smells in the refrigerator. When there is little need for strong deodorization with a photocatalyst, it is possible to perform intermittent irradiation to stop ultraviolet irradiation as necessary, for example, by detecting this with a sensor and stopping ultraviolet irradiation by the ultraviolet radiation lamp 24 . The refrigerator 10 of the present invention can deodorize while stopping or intermittently irradiating ultraviolet rays, so that the deodorizing efficiency is improved, and the life of the ultraviolet radiation lamp 24 is extended and the power consumption is reduced. Can be planned.
[0036]
Another embodiment of the present invention will be described with reference to FIG.
The refrigerator 10A of the present invention shown in FIG. 4 is the same as the refrigerator 10 of the present invention shown in FIG. 1 except that an ultraviolet radiation lamp 24 is arranged on the wind of the photocatalytic filter 25.
[0037]
Next, the deodorizing action will be described.
When the fan of the refrigerator 10A is operated and the cool air in the refrigerator is circulated through the air path including the duct 23, the odor molecules in the cool air are adsorbed and collected by the adsorbent when passing through the photocatalytic filter 25, and the ultraviolet radiation lamp The bacteria that are decomposed by the photocatalyst excited by the ultraviolet rays from 24 and float in the cold air are sterilized by being irradiated with ultraviolet rays.
In the refrigerator 10 </ b> A of the present invention, the odor molecules in the cold air are decomposed by the oxidation catalyst of the photocatalytic filter 25 even when the ultraviolet irradiation from the ultraviolet radiation lamp 24 is stopped. Since deodorization can be performed while ultraviolet irradiation is stopped or intermittently performed and ultraviolet irradiation is not performed, the deodorization efficiency is improved, and the life of the ultraviolet radiation lamp 24 can be extended and the power consumption can be reduced.
[0038]
The description of the above embodiment is for explaining the present invention, and does not limit the invention described in the claims or reduce the scope. Moreover, each part structure of this invention is not restricted to the said embodiment, A various deformation | transformation is possible within the technical scope as described in a claim.
[0039]
【The invention's effect】
The refrigerator with a deodorizing function according to claim 1 of the present invention has a door that is openable and closable on the front surface, a plurality of shelves inside, and a refrigerator that can store an object to be cooled,
After sucking the air in this warehouse and cooling it with a cooler, an air path for discharging into the warehouse from the upper side of the upper shelf in the warehouse,
A blower provided in the air passage and forcibly circulating the cooled air into the cabinet;
A refrigerator provided with a planar ultraviolet radiation lamp provided on the windward side of the cooler in the air passage and a photocatalytic filter having a corrugated type or honeycomb type air passage within the irradiation range of the ultraviolet radiation lamp. And
On the surface layer of the photocatalyst filter, a photocatalyst having a function of decomposing odor molecules in the air passing through the ventilation path when excited by ultraviolet irradiation and an odor in the air passing through the ventilation path in the atmosphere in the air path oxidation catalyst having a function of decomposing molecule Ri Contact is provided a catalyst composition supported on the adsorbent, and the surface of the refrigerating chamber side of the planar ultraviolet radiation lamp as the visible light is irradiated Because it is configured
The distance to each part of the filter is almost uniform, and the irradiation intensity of ultraviolet rays to the photocatalyst is almost uniform, so that uneven activation of the photocatalyst can be suppressed, deodorization efficiency and sterilization efficiency are improved, and ultraviolet irradiation is performed intermittently. Thus, it is possible to deodorize while not irradiating with ultraviolet rays, and there is a remarkable effect that the life of the ultraviolet lamp can be extended and the power consumption can be reduced.
Further, since the visible ultraviolet light is irradiated from the surface of the flat ultraviolet radiation lamp on the side of the refrigerator compartment, there is a remarkable effect that the deformation and deterioration of the resin due to the ultraviolet irradiation can be prevented.
[0040]
The refrigerator with a deodorizing function according to claim 2 of the present invention is the refrigerator according to claim 1, wherein the adsorbent is a hydrophobic zeolite having a Si: Al ratio of 50 or more. In addition, the odorous molecules can be adsorbed well even when moisture is present in the air circulating in the cabinet, and the adsorbed odorous molecules can be decomposed well by the photocatalyst and the oxidation catalyst, thereby improving the deodorization efficiency. Play.
[0041]
The refrigerator with a deodorizing function according to claim 3 of the present invention is the same as the refrigerator according to claim 1 because the oxidation catalyst is an oxidation catalyst selected from bromine and iodine in the refrigerator according to claim 1 or 2. In addition to the effects, it has a further remarkable effect that plant hormones such as ethylene can be decomposed well.
The refrigerator with a deodorizing function according to claim 4 of the present invention is the refrigerator according to any one of claims 1 to 3, wherein the planar ultraviolet radiation lamp is installed in a back plate of a refrigerator compartment, Since it is configured to irradiate visible light on the refrigerator compartment side, the refrigerator can be illuminated, and a further remarkable effect is achieved in that harmful ultraviolet rays are not irradiated on the refrigerator compartment side.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram illustrating an example of a refrigerator according to the present invention.
FIG. 2 is an explanatory view for explaining a back plate of the refrigerator of the present invention shown in FIG.
3 is a partially enlarged view of the refrigerator of the present invention shown in FIG.
FIG. 4 is an explanatory diagram illustrating another example of the refrigerator according to the present invention.
FIG. 5 is an explanatory view illustrating the appearance of a corrugated photocatalytic filter.
FIG. 6 is an explanatory diagram for explaining a conventional deodorizing method.
[Explanation of symbols]
10, 10A Household refrigerator 11 of the present invention 11 Shelf 15 Revolving door 17 Cooler 18 Fan (blower)
20 air passage 24 flat ultraviolet radiation lamp 25 photocatalytic filter

Claims (4)

Inside the cabinet that has a door that can be opened and closed on the front, and has a plurality of shelves inside that can store the object to be cooled,
After sucking the air in this warehouse and cooling it with a cooler, an air path for discharging into the warehouse from the upper side of the upper shelf in the warehouse,
A blower provided in the air passage and forcibly circulating the cooled air into the cabinet;
A refrigerator provided with a planar ultraviolet radiation lamp provided on the windward side of the cooler in the air passage and a photocatalytic filter having a corrugated type or honeycomb type air passage within the irradiation range of the ultraviolet radiation lamp. And
On the surface layer of the photocatalyst filter, a photocatalyst having a function of decomposing odor molecules in the air passing through the ventilation path when excited by ultraviolet irradiation and an odor in the air passing through the ventilation path in the atmosphere in the air path oxidation catalyst having a function of decomposing molecule Ri Contact is provided a catalyst composition supported on the adsorbent, and the surface of the refrigerating chamber side of the planar ultraviolet radiation lamp as the visible light is irradiated The refrigerator with a deodorizing function characterized by being comprised .   The refrigerator according to claim 1, wherein the adsorbent is a hydrophobic zeolite having a Si: Al ratio of 50 or more.   The refrigerator according to claim 1 or 2, wherein the oxidation catalyst is an oxidation catalyst selected from bromine and iodine. The planar ultraviolet radiation lamp is installed in a back plate of a refrigerator compartment, and is configured to irradiate visible light on the refrigerator compartment side. Refrigerator.

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