WO2014019440A1 - 去除异味装置以及具备去除异味装置的电冰箱 - Google Patents

去除异味装置以及具备去除异味装置的电冰箱 Download PDF

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Publication number
WO2014019440A1
WO2014019440A1 PCT/CN2013/078996 CN2013078996W WO2014019440A1 WO 2014019440 A1 WO2014019440 A1 WO 2014019440A1 CN 2013078996 W CN2013078996 W CN 2013078996W WO 2014019440 A1 WO2014019440 A1 WO 2014019440A1
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WO
WIPO (PCT)
Prior art keywords
odor removing
odor
removing device
air
filter
Prior art date
Application number
PCT/CN2013/078996
Other languages
English (en)
French (fr)
Inventor
星野仁
大汤英树
青木均史
仓谷利治
山川贵志
馆野恭也
Original Assignee
海尔集团公司
海尔亚洲国际株式会社
青岛海尔股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海尔集团公司, 海尔亚洲国际株式会社, 青岛海尔股份有限公司 filed Critical 海尔集团公司
Publication of WO2014019440A1 publication Critical patent/WO2014019440A1/zh

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultra-violet radiation
    • A61L9/205Ultra-violet radiation using a photocatalyst or photosensitiser
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042Air treating means within refrigerated spaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04Treating air flowing to refrigeration compartments
    • F25D2317/041Treating air flowing to refrigeration compartments by purification
    • F25D2317/0415Treating air flowing to refrigeration compartments by purification by deodorizing

Definitions

  • the present invention relates to an odor removing device for reducing odor of air circulating in an electric water tank and an electric water tank having the odor removing device.
  • a water tank 101 shown in Fig. 8 has been known (for example, Patent Document 1).
  • the electric water tank 101 is provided with an illumination lamp 105 and a filter 106 inside the cold air passage 102 located on the inner side of the refrigerating compartment 103.
  • the illumination lamp 105 irradiates the inside of the cold air passage 102 with ultraviolet rays, and is attached while passing through the back panel 108.
  • the filter 106 is formed of a base material containing powdered activated carbon, and is formed into a honeycomb shape or a corrugated plate shape having a plurality of passage holes 107 through which circulating cold air passes.
  • titanium oxide as a photocatalyst is disposed, and on the other surface, an odor reducing agent such as ascorbic acid is disposed.
  • the electric water tank 101 activates the photocatalyst disposed on the filter 106 by the ultraviolet ray irradiated from the illuminating lamp 105, and decomposes the odor molecules in the circulating cold air flowing through the cold air passage 102. Further, the odorous gas in the cold air is adsorbed and removed by the odor removing agent disposed on the filter 106.
  • the side of the refrigerating compartment 103 of the illuminating lamp 105 is coated with a fluorescent substance. Made up of quartz glass. Thereby, harmful ultraviolet rays from the illumination lamp 105 are blocked from being irradiated to the refrigerating compartment 103.
  • an electric water tank having an ultraviolet ray discharge lamp that irradiates ultraviolet rays into a duct (air passage) and having a reflective agent such as aluminum adhered to the ultraviolet ray within the duct is known (for example, a patent) Literature 2).
  • Patent Document 1 Japanese Patent Laid-Open Publication No. 2005-9784 (pages 6-7, 5)
  • Patent Document 2 JP-A-2002-333264 (Page 2, Figure 1)
  • Patent Document 2 in the method of attaching a reflecting agent such as aluminum to a cold air passage, it is necessary to apply a large amount of the reflecting agent on the wall surface of the cold air passage which has a complicated shape, so that it is difficult to perform the pasting work. problem.
  • the present invention has been made in view of the above circumstances, and an object thereof is to provide an odor removing device capable of easily performing layout design and assembly work on an electric water tank and having safety and good odor removing performance, and using the odor removing device Electric water tank.
  • the odor removing device of the present invention includes a light source that emits ultraviolet rays and an odor removing filter that carries a photocatalyst activated by the ultraviolet ray, and the odor removing device is characterized in that the light source and the odor removing filter are removed.
  • the device is disposed inside the metal casing in which the air inflow port and the air outflow port are formed, and the ultraviolet ray from the light source is blocked by the odor removing filter and the casing.
  • the light source that irradiates the ultraviolet ray and the odor removing filter that carries the photocatalyst are disposed inside the metal casing and are modularized, so that it is easy to remove
  • the design of the odorous device in the electric water tank and the assembly work on the electric water tank.
  • the odor removing device of the present invention blocks the ultraviolet ray by the above-described odor removing filter and the casing, so that it is possible to prevent the ultraviolet ray from leaking to the outside of the odor removing device. Thereby, deformation and deterioration of the resin member due to ultraviolet rays can be prevented.
  • the odor removing apparatus of the present invention since the light source is covered by the metal casing, even when the light source is broken due to a failure or the like, the damaged member can be prevented from scattering to The outside of the housing and the propagation of heat or sparks. Therefore, it is possible to prevent the occurrence of a major accident.
  • the odor removing device according to the present invention includes a metal cover covering the periphery of the light source inside the casing, and an irradiation port is formed above the light source in the cover, so that the light source is broken or the like. It also allows the damaged part to remain inside the cover. Thereby, the safety of the odor removing device can be further improved.
  • the odor removing filter is disposed to face the irradiation port, and the odor removing filter has a plurality of through holes that are inclined with respect to the traveling direction of the ultraviolet ray, so that the ultraviolet ray irradiated from the light source is irradiated to the above Remove the odor filter and block it.
  • the photocatalyst can be efficiently activated to exhibit an effect of removing odor, and ultraviolet rays can be prevented from leaking to the outside of the odor removing device.
  • the light shielding portion that blocks the ultraviolet rays is formed at the air inflow port or the air outflow port of the casing, it is possible to more reliably prevent the leakage of the ultraviolet rays.
  • the odor removing device is attached to the partition on the storage compartment side inside the cold air passage, and between the odor removing device and the wall surface on the inner side of the cold air passage, air circulation is formed. Clearance. According to this configuration, even when the defrosting water or the like is dropped from the evaporator, it is possible to prevent the odor removing device from being wetted. Further, it is possible to suppress an increase in pressure loss of the cold air passage.
  • Fig. 1 (A) is a front right upper perspective view of the odor removing device according to the embodiment of the present invention, and (B) is a rear left upper perspective view.
  • Fig. 2 is a front elevational view of the odor removing device according to the embodiment of the present invention.
  • Fig. 3 is a side cross-sectional view showing the odor removing device according to the embodiment of the present invention.
  • Fig. 4 is an enlarged cross-sectional view showing the main part of the odor removing apparatus according to the embodiment of the present invention.
  • Fig. 5 is a cross-sectional view showing the upper surface of the odor removing device according to the embodiment of the present invention.
  • Fig. 6 is a front elevational view of the electric water tank of the embodiment of the present invention.
  • Fig. 7 is a side cross-sectional view of the electric water tank according to the embodiment of the present invention.
  • Fig. 8 is a side cross-sectional view showing the main part of an example of a conventional electric water tank.
  • Fig. 1 is an external perspective view showing a schematic configuration of the odor removing device 1.
  • Fig. 1 (A) is a view from the front right side of the front side, and (B) is a view seen from the upper side of the back side.
  • the odor removing device 1 is surrounded by a metal casing 5 which is formed in a substantially box shape as a whole.
  • the casing 5 is made of a stainless steel plate and is formed by sheet metal stamping, welding, and a screw clamp.
  • a recess 9 is formed below the front surface 5a of the casing 5, and a control device 4 to be described later is attached to the recess 9.
  • Fig. 2 is a front elevational view showing a schematic configuration of the odor removing device 1.
  • the above-described control device 4 is fixed to the casing surface 5e which is the inside of the recessed portion 9 by screws 51.
  • an odor removing filter 2 to be described later and an ultraviolet lamp 3 as a light source for irradiating the odor filter 2 to emit ultraviolet rays are disposed.
  • Fig. 3 is a side cross-sectional view showing a schematic internal configuration of the odor removing device 1, showing a cross section taken along line A-A shown in Fig. 2.
  • the casing 5 is formed with a front surface 5a, a surface 5d and a surface 5e in which the concave portion is formed, a bottom surface 5f, a back surface 5b, an upper surface 5c, a left side surface 5h, and a right side surface 5g (refer to FIG. 1).
  • the inner space surrounded by 8.
  • the odor removing filter 2 and the ultraviolet lamp 3 are disposed.
  • the ultraviolet lamp 3 is disposed in the internal space 8 of the metal casing 5, it is possible to prevent the ultraviolet rays from leaking to the outside of the odor removing device 1. Further, even in the case where the ultraviolet lamp 3 is broken due to a failure or the like, the periphery of the odor removing device 1 can be protected by the metal casing 5.
  • the odor removing filter 2 is for removing odor from the air inside the odor removing device 1.
  • the odor removing filter 2 is formed into a honeycomb shape or a corrugated shape by using a nonwoven fabric formed of ceramic fibers as a base material, and has a plate shape as a whole. Further, on the odor removing filter 2, a plurality of passage holes 2c for passing air are formed.
  • the plate-shaped odor removing filter 2 is disposed substantially horizontally and supported by the support members 16, 18. Details will be described later.
  • the ultraviolet lamp 3 is used to irradiate the odor removing filter 2 with ultraviolet rays.
  • the ultraviolet lamp 3 is configured by disposing electrodes on both ends of a quartz glass tube, and a predetermined luminescent gas and an inert gas are sealed inside the glass tube. Further, as a light source that irradiates ultraviolet rays, other types of light sources may be used.
  • the ultraviolet lamp 3 is horizontally disposed inside the metal shade 10 provided below the odor removing filter 2 of the internal space 8. Here, for the ultraviolet lamp 3, the electrode portions at both ends are covered by the lampshade 10 Branch 7 is fixed.
  • the globe 10 is configured as follows: The covers 10a and 10b which have been formed by bending a stainless steel plate by bending or the like are combined to cover the entire periphery of the ultraviolet lamp 3. Further, on the upper surface of the globe 10, i.e., the surface facing the odor-removing filter 2, an opening through which ultraviolet rays can pass, that is, an irradiation port 11 is formed. Thereby, the ultraviolet ray irradiated from the ultraviolet ray lamp 3 passes through the irradiation port 11, and only the upper side is irradiated.
  • the ultraviolet lamp 3 is covered by the metal cover 10, and therefore, even when the ultraviolet lamp 3 is abnormally heated due to a failure of the inverter substrate 12 to be described later, etc., heat leakage can be prevented. To the outside. Thereby, damage of other resin members in the electric water tank can be prevented.
  • the ultraviolet lamp 3 is broken due to abnormality, longevity, or the like, it is possible to prevent the broken member from scattering to the outside of the casing 5.
  • the opening that is, the irradiation port 11
  • the member of the damaged ultraviolet lamp 3 is dropped into the inside of the globe 10 and remains there.
  • a recess 9 which is an outer side of the inner space 8 is provided below the shade 10.
  • the control device 4 is disposed in the recess 9.
  • a frequency converter substrate 12 is disposed inside the control device 4.
  • the inverter substrate 12 is for supplying a high-frequency high-voltage power source for lighting the ultraviolet lamp 3 to the ultraviolet lamp 3.
  • a resin mold 13 is filled inside the casing 14 in which the inverter substrate 12 is disposed.
  • the resin mold 13 is filled in the resin case 14 constituting the control device 4
  • moisture is prevented from adhering to the electric component, electrical insulation is ensured, and an electrical contact that is a source of ignition is not exposed.
  • the air outlet port 7 formed in the upper surface 5c of the casing 5 is formed with a light shielding portion 15 that blocks ultraviolet rays.
  • the light shielding portion 15 is formed by cutting the plate material constituting the upper surface 5c obliquely downward, and is simultaneously processed while the air flow outlet port 7 is being formed. Thereby, the air flow from the odor removing device 1 can be ensured At the same time, it is also possible to prevent ultraviolet rays from leaking from the casing 5 to the outside.
  • the light shielding portion is not limited to the above-described light shielding portion 15, and it is of course possible to use other methods.
  • a method of arranging a light shielding plate or the like by an appropriate gap that ensures air flow under the air outflow port 7 can prevent leakage of ultraviolet rays from the casing 5.
  • An air inflow port 6 is formed below the rear surface 5b of the casing 5 and on the bottom surface 5f. As described above, in the globe 10 covering the ultraviolet lamp 3, the irradiation port 11 is formed only in the portion above the ultraviolet lamp 3, and the air inflow port 6 is provided below the irradiation port 11. With this configuration, ultraviolet rays are prevented from leaking from the airflow inlet 6 to the outside.
  • the ultraviolet lamp 3 since the ultraviolet lamp 3 is disposed at a sufficiently high position with respect to the air inflow port 6, an opening may be additionally provided on the side surface of the globe 10. Thereby, the circulating air can be actively introduced into the ultraviolet lamp 3, so that the cooling of the ultraviolet lamp 3 can be promoted.
  • a light-shielding structure such as the above-described light shielding portion 15 in the separately provided opening, it is possible to more reliably prevent leakage of ultraviolet rays.
  • the inflowing air flows upward through the internal space 8 of the odor removing device 1, and flows through the vent hole 2c from which the odor filter 2 is removed. At this time, by removing the odor filter 2, the odor component in the air is adsorbed and decomposed, and the air is sterilized and the odor is removed. Then, the odor-removing and sterilized air is discharged to the outside from the air outflow port 7 formed above the odor removing device 1.
  • air is introduced from the air inflow port 6 into the internal space 8 of the odor removing device 1 and discharged from the air outflow port 7, but the flow of the air may be reversed. That is to say, it can be used to: introduce air from the air outlet port 7 to remove the odor filter 2
  • the through hole 2a flows downward and is discharged to the outside from the air inflow port 6. Even if the air flows in this way, the odor removing device 1 removes the odor and the sterilizing function.
  • an external air blower or the like is used as a driving source for causing air to flow.
  • a blower or the like it is also possible to provide a blower or the like in the odor removing device 1.
  • FIG. 4 is the same as FIG. 3, and is a cross-sectional view taken along line A-A of FIG. 2, showing an enlarged view of the portion of the odor removing filter 2 and the ultraviolet lamp 3 shown in FIG.
  • the odor removing filter 2 is disposed between the support member 16 formed with the opening 17 for allowing air to pass, and the support member 18 formed with the opening 19 for allowing air to pass therethrough.
  • the support member 16 and the support member 18 are fixed in advance to the casing 5 before the front surface 5a of the casing or the back surface 5b. Then, after the odor removing filter 2 is inserted from the front surface side or the back side to the support member 16 and the support member 18, the front surface 5a or the back surface 5b is attached to assemble the casing 5. With such a configuration, the assembly work of the odor removing device 1 can be easily performed.
  • the through hole 2c formed in the odor removing filter 2 is inclined with respect to the upper and lower surfaces 2b, 2a of the plate-shaped odor removing eliminator. That is, the odor removing filter 2 is disposed to be substantially horizontal, and thus is formed to be inclined with respect to the vertical direction through the hole 2.
  • ultraviolet rays (generally indicated by a broken line arrow L in the figure) which are radially irradiated from the ultraviolet lamp 3 arranged substantially horizontally below the odor removing filter 2 are removed, and the odor filter 2 is irradiated through the irradiation port 11.
  • the passing hole 2c formed in the odor removing filter 2 is inclined with respect to the optical axis direction L of the ultraviolet ray irradiated from the ultraviolet ray 3, that is, the traveling direction L of the light.
  • the ultraviolet ray irradiated to the odor removing filter 2 does not pass through the through hole 2 to reach the back surface (upper surface 2b) of the odor removing filter 2.
  • the surface irradiated with the ultraviolet ray of the odor filter 2 is removed, that is, the surface facing the ultraviolet ray 3
  • an adsorbent and a photocatalyst are disposed on the lower surface 2a.
  • the hydrophobic zeolite as the adsorbent is loaded with titanium oxide as a photocatalyst, coated, sprayed, and adhered to the lower surface 2a of the odor-removing filter 2.
  • the adsorbent and the odor-removing catalyst are disposed on the upper surface 2b on the back side of the surface 2a facing the ultraviolet lamp 3 on the surface on which the ultraviolet ray of the odor filter 2 is not removed.
  • the hydrophobic zeolite as the adsorbent is supported as a manganese oxide-based catalyst for removing the odor-reducing catalyst, and is applied, sprayed, and adhered to the upper surface 2b of the odor-removing filter 2.
  • the hydrophobic zeolite can be physically adsorbed to the odor molecules in the air, and the odor-removing catalyst can be reduced by the manganese oxide-based catalyst. The reaction of odor.
  • Fig. 5 is a cross-sectional view of the upper surface for explaining the positional relationship of the ultraviolet lamp 3, the irradiation port 11, and the odor removing filter 2 in the horizontal direction. Specifically, it is a cross-sectional view of the upper surface along the line B-B in Fig. 2 .
  • an opening formed in the upper surface of the globe 10, i.e., the irradiation port 11, corresponds to the upper portion of the light-emitting portion of the ultraviolet lamp 3. That is, the irradiation port 11 forms an opening at a position where the light-emitting portion of the ultraviolet lamp 3 can be visually observed from above.
  • the deodorizing filter 2 indicated by a chain double-dashed line in the same figure corresponds to the irradiation port 11, and is disposed so as to cover the irradiation port 11. Further, the horizontal plane area of the odor removing filter 2 is sufficiently large with respect to the opening area of the irradiation opening 11.
  • the odor removing function by the photocatalyst in the odor removing filter 2 can be efficiently performed.
  • the passage hole 2c (see FIG. 4) formed in the odor removing filter 2 is inclined with respect to the traveling direction L (see FIG. 4) of the ultraviolet ray, and the ultraviolet ray directly irradiated from the ultraviolet ray lamp 3 does not.
  • Fig. 6 is a front external view showing a schematic configuration of the electric water tank 20 of the present embodiment.
  • the electric water tank 20 of the present embodiment includes a heat insulating box 22 as a main body, and a storage chamber for storing food or the like is formed inside the heat insulating box 22.
  • the inside of the storage compartment is divided into a plurality of storage compartments according to storage temperature and use.
  • the arrangement of the storage chambers is such that the uppermost layer is the refrigerating compartment 23, the lower left side is the water making compartment 24, the right side is the refrigerating and refrigerating switching compartment 25, the lower layer is the upper freezing compartment 26, and the lowermost layer is the lower freezing compartment 27.
  • the front surface of the heat insulating box 22 is an opening, and the heat insulating doors 28a, 28b, 29, 30 are opened and closed in the opening portions corresponding to the respective storage chambers 23, 24, 25, 26, and 27, respectively. 31, 32.
  • the refrigerating compartment doors 28a, 28b divide and block the front surface of the refrigerating compartment 23, and the upper left lower portion of the refrigerating compartment door 28a and the upper right lower portion of the refrigerating compartment door 28b are rotatably supported by the heat insulating box 22.
  • the partitions 29 to 32 are integrally combined with a storage container (not shown), and are supported by the heat insulating box 22 so as to be freely pulled out to the front of the water tank 20.
  • Fig. 7 is a left side cross-sectional view showing a schematic structure of a portion of the refrigerating compartment 23 of the electric water tank 20, and is a cross-sectional view taken along line C-C of Fig. 6.
  • the heat insulating box 22 as the main body of the electric water tank 20 is made of a steel plate outer case 33 having an opening on the front surface, and is provided with a gap inside the outer case 33 and has an opening on the front surface.
  • the inner box 35 made of synthetic resin is composed of a heat insulating material 34 made of foamed polyurethane which is foamed and filled in the gap between the outer box 33 and the inner box 35.
  • each of the heat insulating doors 28 to 32 also uses the same heat insulating structure as that of the heat insulating box 22.
  • the storage compartment is divided into the storage chambers 23 to 27 (see FIG.
  • the heat insulating separator 36 is a molded product of a synthetic resin, and is filled with a heat insulating material.
  • a rack 48 for accommodating food or the like and a storage container 49 are disposed inside the refrigerator compartment 23. Further, although not shown, a shelf for storing food and the like and a storage case are disposed inside the casing of the heat insulating doors 28a and 28b.
  • the inside of the refrigerating compartment 23 inside the inner casing 35 is partitioned by a partition member 37 made of synthetic resin, and a cold air return passage 41 and a cold air supply passage 42 are formed.
  • the cold air passages 41, 42 are configured by various heat insulating materials 47 made of polystyrene to have various suitable passage shapes.
  • the cold air supply passage 42 has a passage that flows upward at a substantially central portion as viewed from the front. Although not shown, a passage that branches downward from the above-described passage and flows downward is formed.
  • an opening for connecting the refrigerating chamber 23 and the cool air return passage 41, that is, the cool air return port 44 is formed below the partition member 37. Further, on the partition member 37, a plurality of openings for connecting the refrigerating chamber 23 and the cold air supply passage 42, that is, the discharge port 43, are formed.
  • a cooling chamber 40 formed by partitioning members 38 is provided on the further rear side of the cold air passages 41, 42 inside the inner box 35.
  • a cooling chamber 40 formed by partitioning members 38 is provided on the partition member 38.
  • an opening that connects the cool air return passage 41 and the cooling chamber 40, that is, the cooling chamber inlet 39 is formed on the partition member 38.
  • an opening for connecting the cooling chamber 40 and the cold air supply passage 42 is formed, and a blower 46 for circulating air is disposed in the opening portion.
  • a cooler 45 for cooling the circulating air that is, the evaporator 45 is disposed inside the cooling chamber 40.
  • the evaporator 45 is connected to a compressor, a radiator, and an expansion valve (capillary) (not shown) via a refrigerant pipe to constitute a vapor compression refrigeration cycle.
  • isobutane (R600a) is used as the refrigerant of the above refrigeration cycle.
  • the odor removing device 1 is disposed above the cold air return port 44 and below the cooling chamber inlet 39.
  • the odor removing device 1 is mounted on the partition member 37.
  • a gap X through which air can flow is formed between the inner surface of the odor reducing device 1 and the cold air return passage 41, that is, the inner box 35 or the partition member 38.
  • the wind path loss of the cold air passage 41 can be reduced. Further, when the frost adhering to the evaporator 45 is removed, even if moisture intrudes from the cooling chamber 40 into the inside of the cold air passage 41, the odor removing device 1 can be prevented from being wetted.
  • the odor removing device 1 of the present embodiment is modularized inside the metal casing 5, so that it is easy to carry out the arrangement design of the electric water tank passage even in the case of using the electric water tank of a different type of machine. And assembly work on the water tank. Further, since the odor removing device 1 can be used in common for the electric water tanks of different models, it is also expected to realize the commonality of the components and the reduction of the component cost.
  • the size of the gap X it is possible to adjust the efficiency of sterilization and odor removal by the odor removing device 1 and the air path loss of the cold air passage 41 to an appropriate state.
  • the gap X is large, the wind path loss can be reduced, and conversely, if the gap X is small, the effect of removing the odor by the odor removing device 1 can be enhanced. Therefore, even when the odor removing device 1 is used in a water tank of a different type of machine, it is possible to exhibit a high odor removing effect while appropriately maintaining the freezing performance.
  • the air cooled by the evaporator 40 is discharged from the cooling chamber 40 to the cool air supply passage 42 by the blower 46.
  • the air flowing through the cold air supply passage 42 flows through the discharge port 43 to the inside of the refrigerating chamber 23, and cools the food or the like stored therein.
  • the air circulated in the refrigerating compartment 23 flows to the cool air return passage 41 via the cool air return port 44.
  • a part of the air flowing in the cool air return passage 41 flows to the inside of the odor removing device 1 to remove odor and sterilize.
  • the other air flowing through the cold air return passage 41 flows through the passage (gap X) formed outside the odor removing device 1, and merges with the odor-eliminating device 1 to remove the odor and the sterilized air.
  • the air flows through the cooling chamber inlet 39 to the cooling chamber 40 where it is cooled by the evaporator 40. Repeat the above operations to cool and preserve the food and remove the odor and sterilization of the air circulating in the tank.
  • the odor removing device 1 of the present embodiment is covered with the metal casing 5, it is possible to prevent the ultraviolet ray from leaking to the outside. Therefore, it is possible to prevent the resin members constituting the cold air return passage 41, that is, the partition members 37, 38, the heat insulating material 47, the inner box 35, and the like from being deformed or deteriorated by the ultraviolet rays.
  • the ultraviolet lamp 3 (see Fig. 3) is broken due to, for example, an abnormality of the device, it is possible to prevent the damaged member, heat, spark, or the like from reaching the cold air return passage 41.
  • the fire spread of the resin members 37, 38, 47 and the like constituting the cold air return passage 41 and the ignition of isobutane as the flammable refrigerant it is possible to prevent the occurrence of a major accident such as a fire or an explosion.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

提供了一种去除异味装置(1)和具备去除异味装置(1)的电冰箱。去除异味装置(1)包括能照射紫外线的光源(3)和担载有能被紫外线激活的光催化剂的去除异味过滤器(2),光源(3)和去除异味过滤器(2)设置在形成有空气流入口(6)和空气流出口(7)的金属制壳体(5)内部,通过去除异味过滤器(2)和壳体(5)遮挡来自光源(3)的紫外线。因此,去除异味装置(1)被模块化,易于其在电冰箱中的组装和更换。此外,去除异味装置(1)能消除紫外线泄露,防止由于紫外线泄露导致的树脂部件变形和老化。即使在因故障导致光源(3)破损的情况下,也能防止破损部件飞散到去除异味装置(1)的外部。电冰箱在储藏室或冷气通道的内部具备上述去除异味装置(1)。

Description

去除异味装置以及具备去除异味装置的电冰箱 技术领域
本发明涉及一种使在电水箱内循环的空气的异味减少的去除异味装置以及 具备该去除异味装置的电水箱。
背景技术
以往, 作为这种装载有去除异味装置的电水箱, 已知有图 8 所示的电水箱 101 (例如, 专利文献 1 )。
如图 8所示, 电水箱 101 在位于冷藏室 103的里侧的冷气通道 102的内部 具备照明灯 105和过滤器 106。 照明灯 105对冷气通道 102的内部照射紫外线, 以贯通背面板 108的状态进行安装。 过滤器 106由包含粉末活性炭的基材形成, 并做成了具有使循环冷气通过的多个通过孔 107 的蜂窝状或者波紋状的板状。 在与过滤器 106的照明灯 105相向的面上, 配置有作为光催化剂的氧化钛 , 在 其他的面上, 配置有抗坏血酸等去除异味剂。
才艮据这样的构成, 电水箱 101通过从照明灯 105照射出的紫外线, 激活配 置在过滤器 106上的光催化剂, 分解在冷气通道 102流动的循环冷气中的异味 分子。 此外, 通过在过滤器 106上配置的去除异味剂, 吸附并除去冷气中的异 味气体。
然而, 在像上述那样利用紫外线照射的电水箱中, 必须考虑由于高能耗的 短波长紫外线漏到外部而对人体造成不好的影响、 以及构成电水箱的树脂部件 因紫外线产生变形或者老化等问题。
在上述的电水箱 101 中, 照明灯 105的冷藏室 103—侧, 由涂敷了荧光物 质的石英玻璃构成。 由此, 来自照明灯 105 的有害紫外线被遮挡不会照射到冷 藏室 103。
此外, 作为其他的现有技术的例子, 已知有具备对管道(冷气通道) 内照 射紫外线的紫外线放电灯并在管道内的紫外线照射范围内粘贴有铝等反射剂的 电水箱 (例如, 专利文献 2 )。
利用这样的构成, 在专利文献 2公开的电水箱中, 防止了因紫外线而导致 的树脂的变形。
现有技术文献
专利文献
专利文献 1 : 日本特开 2005-9784号公报(第 6-7页, 第 5图)
专利文献 2: 日本特开 2002-333264号公报(第 2页, 第 1图)
然而, 如专利文献 1公开的现有技术那样, 在冷气通道 102 内配置照明灯 105和过滤器 106的结构中, 只对需要紫外线照射的区域、 即过滤器 106的表面 照射紫外线是艮困难的。 也就是说, 存在紫外线还泄漏到冷气通道 102 内的其 他区域的问题。
此外, 为了防止紫外线泄漏, 需要设置上述的涂敷有荧光物质的石英玻璃 和其它的屏蔽体, 但需要结合因每个机种而具有不同形状的冷气通道来进行合 适的配置, 所以其设计很繁瑣。
此外, 如专利文献 2公开的现有技术那样, 在冷气通道内粘贴铝等反射剂 的方法中, 在呈现复杂形状的冷气通道壁面上, 需要大范围地粘贴反射剂, 因 此存在粘贴作业困难的问题。
此外进而, 除了上述的因紫外线泄漏导致的树脂老化等的对策之外, 还需 要可靠地防止因来自紫外线灯和控制装置的发热而导致部件的损伤和起火。 特 别是, 在使用了异丁烷(R600a )等的可燃性制冷剂的电水箱中, 要求有如下这 样的设计, 即, 即使例如紫外线灯和控制装置发生了异常或故障, 其也无法成 为起火源。
发明内容
本发明是鉴于上述的情况而做出的, 其目的在于提供一种能够易于进行对 电水箱的配置设计和组装作业并具有安全、 且良好的去除异味性能的去除异味 装置以及使用该去除异味装置的电水箱。
用于解决课题的方案
为了解决上述的课题, 本发明的去除异味装置具有照射紫外线的光源和担 载有通过上述紫外线被激活的光催化剂的去除异味过滤器, 上述去除异味装置 的特征在于, 上述光源以及上述去除异味过滤器被配置于形成有空气流入口以 及空气流出口的金属制壳体的内部, 通过上述去除异味过滤器以及上述壳体, 遮挡来自上述光源的上述紫外线。
发明效果
釆用本发明的去除异味装置以及具备该装置的电水箱, 将照射紫外线的光 源和担载有光催化剂的去除异味过滤器配置于金属制壳体的内部并进行模块 化, 因此易于进行将去除异味装置配置于电水箱中的设计和对电水箱的组装作 业。
此外, 本发明的去除异味装置通过上述去除异味过滤器以及上述壳体来遮 挡紫外线, 因此能够防止紫外线泄漏到去除异味装置的外部。 由此, 能够防止 因紫外线导致的树脂部件变形和老化。
此外, 本发明的去除异味装置由于上述光源被金属制的上述壳体所覆盖, 因此即使在因故障等导致上述光源破损的情况下, 也能够防止破损部件飞散到 上述壳体的外部和传播热或火花。 因此, 能够防止重大事故的发生。 此外进而, 本发明的去除异味装置在上述壳体内部具备覆盖上述光源周围 的金属制的罩, 在上述罩上, 比上述光源靠上方形成有照射口, 因此即使在上 述光源破损等的情况下, 也能让破损部件留在上述罩的内部。 由此, 能够更加 提高去除异味装置的安全性。
此外, 上述去除异味过滤器与上述照射口相向地进行配置, 在上述去除异 味过滤器上, 形成有相对于紫外线的行进方向倾斜的多个通过孔, 因此从上述 光源照射出的紫外线照到上述去除异味过滤器上而能被阻止通过。 由此, 能高 效地激活光催化剂、 发挥去除异味作用, 并且能防止紫外线泄漏到去除异味装 置的外部。
此外, 在上述壳体的空气流入口或者空气流出口, 形成有遮挡紫外线的遮 光部, 因此可以更可靠地防止紫外线的泄漏。
此外, 本发明的电水箱将上述去除异味装置安装在冷气通道内部的储藏室 一侧的隔板上, 在上述去除异味装置和上述冷气通道的里侧的壁面之间, 形成 有能使空气流通的间隙。 釆用该构成, 即使在从蒸发器落下除霜水分等的情况 下, 也能够防止去除异味装置被淋湿。 此外, 能够抑制冷气通道的压力损失增 大。
附图说明
图 1 ( A )是本发明的实施方式的去除异味装置的正面右上立体图, (B )是 背面左上立体图。
图 2是本发明的实施方式的去除异味装置的正视图。
图 3是本发明的实施方式的去除异味装置的侧面剖视图。
图 4是本发明的实施方式的去除异味装置的主要部位放大剖视图。 图 5是本发明的实施方式的去除异味装置的上表面剖视图。
图 6是本发明的实施方式的电水箱的正视图。
图 7是本发明的实施方式的电水箱的侧面剖视图。
图 8是示出现有技术的电水箱的例子的主要部位侧面剖视图。
附图标记说明
1 : 去除异味装置; 2: 去除异味过滤器; 2c: 通过孔; 3 : 紫外线灯; 5: 金属壳体; 6: 空气流入口; 7: 空气流出口; 10: 灯罩; 11 : 照射口; 15 : 遮 光部; 20: 电水箱; 23: 冷藏室; 37: 隔板; 40: 冷却室; 41 : 冷气返回通道; 42: 冷气提供通道 具体实施方式
以下, 基于附图, 详细说明本发明的实施方式的去除异味装置以及具备去 除异味装置的电水箱。
首先, 参照图 1至图 5 , 对本实施方式的去除异味装置 1进行说明。 图 1是 示出去除异味装置 1 的概略构造的外观立体图。 图 1 ( A )是从正面右侧面上 方看到的图, (B )是从背面左侧面上方看到的图。
如图 1所示, 对于去除异味装置 1 而言, 其四周被整体呈大致箱状的金属 制的壳体 5覆盖。 壳体 5以不锈钢钢板为材料, 利用板金冲压加工、 焊接以及 螺旋夹而形成。
如图 1 ( A ) 所示, 在壳体 5的上表面 5c上, 形成有用于使流动在去除异 味装置 1 内部的空气流出的开口、 即空气流出口 7。 此外, 在壳体 5的前表面 5a的下方, 形成有凹部 9 , 在凹部 9安装有后述的控制装置 4。
如图 1 ( B )所示, 在壳体 5的背面 5b的下方, 形成有用于使空气流入去 除异味装置 1内部的开口、 即空气流入口 6。
图 2是示出去除异味装置 1的概略构造的正视图。 如图 2所示那样, 上述 的控制装置 4通过螺丝 51 固定在成为凹部 9的里面的壳体面 5e上。 而且, 在 壳体 5的内部, 配置有后述的去除异味过滤器 2和作为对去除异味过滤器 2照 射紫外线的光源的紫外线灯 3。
图 3是示出去除异味装置 1的概略内部构造的侧面剖视图,示出了沿着图 2 中示出的 A-A线的剖面。 如图 3所示那样, 壳体 5形成有由前表面 5a、 形成凹 部的面 5d以及面 5e、底面 5f、背面 5b、上表面 5c、左侧面 5h以及右侧面 5g (参 照图 1 ) 包围的内部空间 8。 如上所述, 在壳体 5的内部空间 8中, 配置有去除 异味过滤器 2和紫外线灯 3。
这样, 由于在金属制的壳体 5的内部空间 8中配置有紫外线灯 3 , 所以能够 防止紫外线泄漏到去除异味装置 1 的外部。 此外, 即使在因故障等导致紫外线 灯 3破损的情况下, 也可以通过金属制的壳体 5来保护去除异味装置 1的周围。
去除异味过滤器 2用于对通过去除异味装置 1 的内部的空气去除异味。 去 除异味过滤器 2以由陶瓷纤维形成的无纺布为基材并成型为蜂窝状或者波紋状, 整体呈板状的形态。 而且, 在去除异味过滤器 2上, 形成有用于使空气通过的 多个通过孔 2c。 此处, 呈板状的去除异味过滤器 2配置成大致水平, 由支承件 16, 18支承。 细节将在后面叙述。
紫外线灯 3用于对去除异味过滤器 2照射紫外线。 紫外线灯 3通过在石英 玻璃管的两端配置电极而构成, 在玻璃管的内部封入有规定的发光气体和不活 泼性气体。 另外, 作为照射紫外线的光源, 也可以利用其它形式的光源。
紫外线灯 3被水平配置在设置于内部空间 8的去除异味过滤器 2的下方的 金属制的灯罩 10的内部。 此处, 对于紫外线灯 3而言, 两端电极部分被灯罩 10 支 7 固定。
灯罩 10按照如下方式构成: 将通过弯曲加工等对不锈钢制的钢板进行成型 后的罩 10a、 10b组合起来, 覆盖紫外线灯 3的全部周围。 而且, 在灯罩 10的 上表面, 即与去除异味过滤器 2相向的面上, 形成有能使紫外线通过的开口、 即照射口 11。 由此, 从紫外线灯 3照射出来的紫外线通过照射口 11后, 仅对上 方进行照射。
这样, 由金属制的灯罩 10覆盖紫外线灯 3 , 因此, 例如, 即使在因后述的 变频器 ( inverter )基板 12的故障等导致紫外线灯 3异常发热这样的情况下, 也 能够防止其热泄漏到外部。 由此, 能够防止电水箱内的其他树脂部件的破损。
此外, 例如, 即使在因异常或寿命等而紫外线灯 3破损这样的情况下, 也 能够防止破损的部件飞散到壳体 5 的外部。 特别是, 在本实施方式中, 由于只 在灯罩 10的上表面形成开口、 即照射口 11 , 因此破损的紫外线灯 3的部件会掉 落到灯罩 10的内部并残留在那。
在灯罩 10的下方设有成为内部空间 8的外侧的凹部 9。 如上所述, 在凹部 9中配置有控制装置 4。 而且, 在控制装置 4的内部配置有变频器基板 12。 变频 器基板 12用于对紫外线灯 3提供用于使紫外线灯 3点亮的高频高电压的电源。
而且, 在配置有变频器基板 12的壳体 14的内部, 填充有树脂模 13。 这样, 由于在构成控制装置 4的树脂制的壳体 14的内部填充有树脂模 13 , 因此,会防 止水分附着于电气部件而确保电气绝缘性, 并且不使成为着火源的电气接点露 出。
在壳体 5的上表面 5c形成的空气流出口 7 ,形成有遮挡紫外线的遮光部 15。 遮光部 15通过将构成上表面 5c的板材向斜下方切取而成型, 并在加工成型空 气流出口 7之时同时被加工。 由此, 能够确保来自去除异味装置 1 的空气流动 的同时, 还能够防止紫外线从壳体 5泄漏到外部。
另外, 作为遮光部, 并非限定于上述的遮光部 15的方式, 当然也可以釆用 其他的方式。 例如, 利用在空气流出口 7 的下方确保空气能流通的适当的间隙 来配置遮光板等的方法, 也能够防止紫外线从壳体 5泄漏。
在壳体 5的背面 5b的下方以及底面 5f形成有空气流入口 6。 如上所述, 在 覆盖紫外线灯 3的灯罩 10上, 仅在相对于紫外线灯 3成为上方的部分形成有照 射口 11 , 空气流入口 6设在照射口 11的下方。 通过该构成, 防止了紫外线从空 气流入口 6泄漏到外部。
另外, 在本实施方式中, 由于相对于空气流入口 6, 将紫外线灯 3配置在足 够高的位置上, 所以也可以在灯罩 10的侧面另外设置开口。 由此, 能够积极地 将循环的空气导入紫外线灯 3部分, 因此能够促进紫外线灯 3的冷却。 在这种 情况下, 通过在另外设置的开口中, 形成如上述的遮光部 15那样的遮光构造, 从而能够更可靠地防止紫外线的泄漏。
在此, 对在去除异味装置 1 内部的空气流动进行说明。 如图 3 中实线箭头 所示那样, 空气经由在去除异味装置 1下方形成的空气流入口 6 ,从外部流入去 除异味装置 1的内部空间 8。
流入的空气通过去除异味装置 1 的内部空间 8向上方流动, 在去除异味过 滤器 2的通气孔 2c中流通。 此时, 通过去除异味过滤器 2, 空气中的异味成分 被吸附分解, 空气被杀菌、 去除异味。 然后, 去除异味、 杀菌后的空气从去除 异味装置 1上方形成的空气流出口 7向外部流出。
另外, 尽管在上述的说明中, 是将空气从空气流入口 6导入去除异味装置 1 的内部空间 8 , 并从空气流出口 7进行排出, 但是空气的流动也可以与其相反。 也就是说, 可以使用成: 将空气从空气流出口 7导入, 使其经去除异味过滤器 2 的通过孔 2a向下方流通, 并从空气流入口 6向外部排出。 空气即使这样流动, 去除异味装置 1也会发挥去除异味、 杀菌功能。
此外, 在本实施方式的去除异味装置 1 中, 用于使空气流动的驱动源利用 了外部的鼓风机等。 但是, 也能在去除异味装置 1中设置鼓风机等。
图 4与图 3相同, 是沿着图 2的 A-A线的剖视图, 放大表示了图 3示出的 去除异味过滤器 2以及紫外线灯 3的部分。
如图 4所示那样, 去除异味过滤器 2配置于形成有用于使空气通过的开口 17的支承件 16和形成有用于使空气通过的开口 19的支承件 18之间。在本实施 方式中, 在安装壳体前表面 5a或者背面 5b之前的壳体 5预先固定有支承件 16 和支承件 18。 然后, 将去除异味过滤器 2从前表面一侧或者背面一侧插入到支 承件 16和支承件 18之间以后, 安装前表面 5a或者背面 5b, 来组装壳体 5。 利 用这样的构成, 能够易于进行去除异味装置 1的组装作业。
此外, 在去除异味过滤器 2上形成的通过孔 2c, 相对于呈板状的去除异味 过滤器的上下面 2b、 2a而言, 为倾斜状态。 也就是说, 去除异味过滤器 2配置 成大致水平, 因此通过孔 2形成为与竖直方向倾斜。
此外, 从在去除异味过滤器 2的下方呈大致水平配置的紫外线灯 3呈放射 状照射的紫外线(图中用虚线箭头 L示意性地表示), 通过照射口 11 , 照到去除 异味过滤器 2上。 此处, 在去除异味过滤器 2上形成的通过孔 2c相对于从紫外 线灯 3照射的紫外线的光轴方向 L, 即光的行进方向 L也呈倾斜状态。
这样, 由于相对于紫外线的行进方向 L倾斜地形成通过孔 2 ,所以照射到去 除异味过滤器 2的紫外线, 不会穿过通过孔 2到达至去除异味过滤器 2的背面 (上表面 2b )。
此外, 在去除异味过滤器 2的紫外线所照射的面, 即与紫外线灯 3相向的 下表面 2a上, 配置有吸附剂和光催化剂。 具体地说, 让作为吸附剂的疏水性沸 石担载作为光催化剂的氧化钛, 将其涂敷或者喷涂、 附着配置在去除异味过滤 器 2的下表面 2a上。
由此, 通过去除异味过滤器 2 的空气中的异味分子, 例如曱硫醇等, 能用 疏水性沸石物理吸附, 能用通过从紫外线灯 3 照射的紫外线而被激活的氧化钛 分解。
另一方面,在去除异味过滤器 2的紫外线照不到的面, 即成为与紫外线灯 3 相向的面 2a的背侧的上表面 2b, 配置有吸附剂和去除异味反应催化剂。 具体地 说, 让作为吸附剂的疏水性沸石担载作为去除异味反应催化剂的氧化锰系催化 剂, 将其涂敷或者喷涂、 附着配置在去除异味过滤器 2的上表面 2b上。
由此, 即使在紫外线照射不到的去除异味过滤器 2的上表面 2b—侧, 也能 够用疏水性沸石对空气中的异味分子进行物理吸附, 利用氧化锰系的去除异味 反应催化剂, 进行减少异味的反应。
图 5是用于说明紫外线灯 3、 照射口 11以及去除异味过滤器 2的水平方向 位置关系的上表面剖视图。 具体地说, 是沿着图 2中 B-B线的上表面剖视图。
如图 5所示那样, 在灯罩 10的上表面形成的开口、 即照射口 11 , 与紫外线 灯 3的发光部分的上部相对应。 也就是说, 照射口 11在能从上方目视到紫外线 灯 3 的发光部的位置上形成开口。 此外, 在同一图中用双点划线表示的去除异 味过滤器 2与照射口 11相对应, 以覆盖照射口 11的方式进行配置。 此外, 去 除异味过滤器 2的水平面面积相对于照射口 11的开口面积而言足够大。
通过釆用这样的构成, 能够将从紫外线灯 3照射出并直接通过照射口 11的 大致全部的紫外线, 照到去除异味过滤器 2上。 由此, 能够高效地进行由去除 异味过滤器 2中的光催化剂实现的去除异味功能。 此外, 如上所述, 在去除异味过滤器 2上形成的通过孔 2c (参照图 4 ), 相 对于紫外线的行进方向 L (参照图 4 )呈倾斜状态, 从紫外线灯 3直接照射的紫 外线不会通过去除异味过滤器 2。 因此, 能够防止紫外线泄漏到壳体 5的外部。
接着, 参照图 6及图 7 , 对具备本实施方式的去除异味装置 1的电水箱 20 进行详细说明。 图 6是示出本实施方式的电水箱 20的概略构造的正面外观图。
如图 6所示那样, 本实施方式的电水箱 20具备作为主体的隔热箱体 22 , 在 该隔热箱体 22的内部形成有储藏食品等的储藏室。 储藏室的内部根据保存温度 和用途划分为多个收纳室。 各收纳室的配置为: 最上层是冷藏室 23、 其下层左 侧是制水室 24、 右侧是冷冻冷藏切换室 25、 进而其下层是上层冷冻室 26、 最下 层是下层冷冻室 27。
隔热箱体 22的前表面为开口, 在与上述各收纳室 23、 24、 25、 26、 27相 对应的上述开口部, 分别开闭自由地设有隔热门 28a、 28b、 29、 30、 31、 32。 冷藏室门 28a、 28b将冷藏室 23的前表面分割并堵塞,冷藏室门 28a的左上下部 以及冷藏室门 28b的右上下部被隔热箱体 22以旋转自由的方式支承。 此外, 隔 热门 29〜32 分别与未图示的收纳容器组合成一体, 以可自由拉出到电水箱 20 的前方的方式被隔热箱体 22支 。
图 7是示出电水箱 20的冷藏室 23部分的概略构造的左侧面剖视图, 是沿 着图 6的 C-C线的剖视图。
如图 7所示, 作为电水箱 20主体的隔热箱体 22由在前表面具有开口部的 钢板制外箱 33、在该外箱 33的内侧配设成带有间隙并在前表面具有开口部的合 成树脂制的内箱 35、 和在上述外箱 33和内箱 35的间隙中发泡填充的发泡聚氨 酯制的隔热材料 34构成。 另外, 各隔热门 28〜32 (参照图 6 )也釆用与隔热 箱体 22同样的隔热构造。 如上所述, 储藏室划分为各收纳室 23〜27 (参照图 6 ), 冷藏室 23和位于 其下层的制水室 24以及冷冻冷藏切换室 25之间, 由隔热隔板 36分隔开来。 隔 热隔板 36是合成树脂的成型品, 在其内部填充有隔热材料。
此外, 在冷藏室 23的内部配设有用于收纳食品等的搁物架 48和收纳容器 49。 此外, 虽然省略图示, 但在隔热门 28a、 28b的箱体内侧配设有用于收纳食 品等的搁物架和收纳盒。
此外,内箱 35内部的冷藏室 23的里侧用合成树脂制的分隔构件 37划分开, 形成有冷气返回通道 41和冷气提供通道 42。 另外, 冷气通道 41、 42通过配置 聚苯乙烯制的隔热材料 47 , 从而构成为各种适宜的通道形状。 例如, 冷气提供 通道 42在从正面看大致中央部位上, 形成有流向上方的通道, 虽省略图示, 但 在左右形成有从上述的通道分支后流向下方的通道。
在分隔构件 37的下方, 形成有将冷藏室 23和冷气返回通道 41相连接的开 口, 即冷气返回口 44。 此外进而, 在分隔构件 37上, 形成有多个将冷藏室 23 和冷气提供通道 42相连接的开口, 即喷出口 43。
在内箱 35内部的冷气通道 41、 42的更里侧, 设有被分隔构件 38划分开而 形成的冷却室 40。 在分隔构件 38上, 形成有将冷气返回通道 41和冷却室 40相 连接的开口, 即冷却室入口 39。 此外, 在分隔构件 38上, 形成有将冷却室 40 和冷气提供通道 42相连接的开口, 在该开口部, 配设有用于使循环空气的鼓风 机 46。
而且, 在冷却室 40的内部, 配置有用于使循环的空气冷却的冷却器 45 , 即 蒸发器 45。 蒸发器 45经由制冷剂配管与未图示的压缩器、 散热器、 膨胀阀(毛 细管)连接, 构成蒸气压缩式的冷冻循环回路。 另外, 在本实施方式的电水箱 20中, 使用了异丁烷(R600a )作为上述冷冻循环的制冷剂。 在冷气返回通道 41的内部, 比冷气返回口 44靠上且比冷却室入口 39靠下 地配设有去除异味装置 1。 去除异味装置 1安装在分隔构件 37上。 此处, 在去 除异味装置 1与冷气返回通道 41的里侧的面、即内箱 35或者分隔构件 38之间, 形成有空气能流通的间隙 X。
由此, 能够减少冷气通道 41 的风路损失。 此外, 在去除附着于蒸发器 45 上的霜时, 即使水分从冷却室 40侵入到冷气通道 41 的内部, 也能防止去除异 味装置 1不被淋湿。
如上所述, 本实施方式的去除异味装置 1在金属制的壳体 5内部被模块化, 因此即使在不同机种的电水箱中釆用的情况下, 也易于进行对电水箱通道的配 置设计和对电水箱的组装作业。 此外, 由于能够对不同机种的电水箱, 共通地 使用去除异味装置 1 , 所以还可以期待实现部件的共通化、 能够减少部件成本的 这些优点。
此外, 通过变更上述间隙 X的尺寸, 能够将用去除异味装置 1 杀菌以及去 除异味的效率、 和冷气通道 41的风路损失调整到合适的状态。 也就是说, 若确 保间隙 X较大, 就能够减少风路损失, 反之, 若间隙 X较小, 就能够增强用去 除异味装置 1 杀菌、 去除异味的效果。 因此, 即使在不同机种的电水箱中釆用 去除异味装置 1 的情况下, 也能够在适当维持冷冻性能的同时, 发挥较高的去 除异味效果。
接下来, 针对具备上述构成的电水箱 20 , 对其动作进行说明。 图 7中用实 线箭头表示电水箱 20内部空气的流动。
如图 7所示那样, 经蒸发器 40冷却的空气通过鼓风机 46从冷却室 40被排 出到冷气提供通道 42。 在冷气提供通道 42中流动的空气通过喷出口 43流动到 冷藏室 23的内部, 对储藏在那里的食品等进行冷却。 在冷藏室 23中循环的空气经由冷气返回口 44流到冷气返回通道 41。然后, 在冷气返回通道 41 中流动的一部分空气流到去除异味装置 1 的内部来去除异 味、 杀菌。 此外, 在冷气返回通道 41中流动的其他空气流过去除异味装置 1外 侧形成的通道(间隙 X ), 与上述经去除异味装置 1去除异味、 杀菌后的空气合 流。
然后, 该空气通过冷却室入口 39流到冷却室 40, 在此经蒸发器 40冷却。 重复以上的动作, 进行食品的冷却保存和在箱体内循环的空气的去除异味以及 杀菌。
如上述说明的那样, 本实施方式的去除异味装置 1被金属制的壳体 5所覆 盖, 因此能够防止紫外线泄漏到外部。 因而, 能够防止构成冷气返回通道 41的 树脂部件即分隔构件 37、 38、 隔热材 47以及内箱 35等因紫外线而导致变形或 者老化。
此外, 即使在例如因装置的异常等导致紫外线灯 3 (参照图 3 )破损的情 况下, 也能够防止破损部件或热、 火花等到达冷气返回通道 41。 其结果是, 能 够防止对构成冷气返回通道 41 的树脂部件 37、 38、 47等的火势蔓延和对作为 可燃性制冷剂的异丁烷的引燃, 能够防止火灾和爆炸等重大事故的发生。
以上, 虽然对本发明的实施方式的电水箱 20进行了说明, 但是本发明并非 限定于此, 在不脱离本发明的要旨的范围内, 能进行各种变更。

Claims

1. 一种去除异味装置, 其具有照射紫外线的光源和担载有通过上述紫外线 被激活的光催化剂的去除异味过滤器, 上述去除异味装置的特征在于,
上述光源以及上述去除异味过滤器被配置于形成有空气流入口以及空气流 出口的金属制壳体的内部,
通过上述去除异味过滤器以及上述壳体, 遮挡来自上述光源的上述紫外线。
2. 根据权利要求 1所述的去除异味装置, 其特征在于,
在上述壳体内部, 具备覆盖在上述光源周围的金属制的罩,
3. 根据权利要求 2所述的去除异味装置, 其特征在于,
上述去除异味过滤器与上述照射口相向地进行配置,
在上述去除异味过滤器上, 形成有使空气通过的多个通过孔,
上述通过孔以相对于从上述光源照射出的紫外线的行进方向倾斜的方式形 成。
4. 根据权利要求 1至 3中任一项所述的去除异味装置, 其特征在于, 在上 述空气流入口或者上述空气流出口, 形成有遮挡上述紫外线的遮光部。
5. 一种具备去除异味装置的电水箱, 其具备储藏室、 对循环的空气进行冷 却的冷却室、 连通上述储藏室和上述冷却室的冷气通道, 上述电水箱的特征在 于,
在上述储藏室或者上述冷气通道的内部具备权利要求 1至权利要求 4中任 一项所述的去除异味装置。
6. 根据权利要求 5所述的具备去除异味装置的电水箱, 其特征在于, 上述冷气通道隔着隔板形成在上述储藏室的里侧,
上述去除异味装置安装在上述冷气通道内部的上述隔板上,
在上述去除异味装置和上述冷气通道的里侧的壁面之间, 形成有能使空气 通的间隙。
PCT/CN2013/078996 2012-07-31 2013-07-08 去除异味装置以及具备去除异味装置的电冰箱 WO2014019440A1 (zh)

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