WO2020119552A1 - 分解装置以及包括分解装置的冰箱 - Google Patents

分解装置以及包括分解装置的冰箱 Download PDF

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Publication number
WO2020119552A1
WO2020119552A1 PCT/CN2019/123037 CN2019123037W WO2020119552A1 WO 2020119552 A1 WO2020119552 A1 WO 2020119552A1 CN 2019123037 W CN2019123037 W CN 2019123037W WO 2020119552 A1 WO2020119552 A1 WO 2020119552A1
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WIPO (PCT)
Prior art keywords
food
decomposition device
cold air
box
light source
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
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PCT/CN2019/123037
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English (en)
French (fr)
Inventor
星野仁
金野麻里菜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Aqua Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Aqua Co Ltd
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Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd, Aqua Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Publication of WO2020119552A1 publication Critical patent/WO2020119552A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices

Definitions

  • the present invention relates to a device for decomposing residual pesticides adhering to the surface of food and a refrigerator including the device.
  • the total amount of ultraviolet rays irradiated to the food affects the degree of decomposition of the residual pesticide and the quality of the food. That is, if the total amount of ultraviolet rays irradiated to the food is too small, the residual pesticide cannot be sufficiently decomposed. On the other hand, if the total amount of ultraviolet rays irradiated to the food is too large, the quality of the food may be degraded.
  • the refrigerator described in Patent Document 1 is provided with an additional device (oxygen enrichment device and oxygen concentration detection device, a pump or a hypochlorous acid aqueous solution generation and supply device, and a wavelength of 780 nm ⁇ 1mm other light source), so as to balance the degree of decomposition of pesticides and the damage of the irradiated light to the food.
  • an additional device oxygen enrichment device and oxygen concentration detection device, a pump or a hypochlorous acid aqueous solution generation and supply device, and a wavelength of 780 nm ⁇ 1mm other light source
  • Patent Literature 1 JP 2010-216667
  • An object of the present invention is to provide a decomposition device capable of efficiently decomposing residual pesticides adhering to food while suppressing deterioration of food quality with a simple configuration.
  • the decomposition device of the present invention includes: an irradiating section, which is provided in a storage compartment of a refrigerator, and irradiates food stored in the storage compartment with light having a wavelength of 100 nm or more and 300 nm or less; and a control section, which controls The irradiation section is such that the product of the light illuminance ( ⁇ W/cm2) and the irradiation time (H) is 2000 ( ⁇ W/cm2 ⁇ H) or more and 6000 ( ⁇ W/cm2 ⁇ H) or less, and the decomposition device is attached to The pesticide in the food stored in the storage room is decomposed.
  • ⁇ W/cm2 the product of the light illuminance
  • H irradiation time
  • the present invention by moderate irradiation of UV-C, it is possible to provide a decomposition device that efficiently decomposes residual pesticides adhering to food while suppressing damage to food stored in the storage chamber with a simple structure.
  • the disassembling device includes a cabinet provided in the storage room, and reflection surfaces are provided on the inner surfaces above, below, and on both sides of the cabinet, and the reflection under the cabinet The surface is inclined so as to become lower from the center toward the side of the box, and a food holding part for holding food is provided in the box.
  • the food holding part is made of a mesh member or can transmit a wavelength of 100 nm A member of light above and below 300 nm is formed.
  • the food can be irradiated with light from multiple directions. Furthermore, since the food holding portion is formed of a mesh-shaped member or a member that can transmit light with a wavelength of 100 nm or more and 300 nm or less, the entire food is irradiated with light regardless of the position of the irradiating portion and the installation state (orientation) of the food .
  • the irradiation unit includes a plurality of light sources, and the plurality of light sources are arranged to irradiate the food stored in the storage room from different directions.
  • food can be irradiated with light from multiple directions, and light can be irradiated to substantially the entire food.
  • the decomposition device includes: a cold air inlet that allows cold air circulating in the refrigerator to enter the cabinet or the storage room; and a cold air outlet that is provided near the light source , The cold air flowing in from the cold air flow inlet is discharged to the outside of the box or the storage room.
  • the present invention it is possible to prevent a temperature increase in the cabinet or the storage room due to the heat emitted from the light source.
  • the cold air inlet is opened and closed by the control unit.
  • the cold air inlet by setting the cold air inlet to the open state, it is possible to prevent the temperature rise in the cabinet or the storage room due to the heat emitted from the light source.
  • the cold air inlet by setting the cold air inlet to the closed state, it is possible to prevent excessive drying of cold air in the cabinet or the storage room.
  • the decomposition device configured as described above can decompose the quality of food with a simple structure and efficiently decompose residual pesticides adhering to the food.
  • FIG. 1 is a schematic front view of a refrigerator provided with a disassembly device according to an embodiment of the present invention.
  • FIG. 2A is a schematic cross-sectional view of the disassembly device according to an embodiment of the present invention when viewed from the front, and schematically shows the irradiation direction of light emitted from a light source by a dotted arrow.
  • 2B is a schematic cross-sectional view when viewed from the side of the disassembly device according to an embodiment of the present invention, and schematically shows an irradiation direction of light emitted from a light source by a dotted arrow.
  • 3A is a schematic cross-sectional view of the decomposition apparatus according to an embodiment of the present invention when viewed from the front, and the direction of the flow of cold air is schematically shown by the solid-line arrows.
  • 3B is a schematic cross-sectional view when viewed from the side of the decomposition device according to the embodiment of the present invention, and the direction of the cold air flow is schematically shown by the solid-line arrow.
  • 4A is a graph showing an example of the relationship between the pesticide removal rate and the product of UV-C irradiation time and irradiation intensity (UV irradiation index).
  • FIG. 4B shows the UV irradiation index and spinach appearance when spinach is irradiated with UV-C.
  • FIG. 1 is a schematic front view of a refrigerator 1 provided with a disassembly device 100 according to an embodiment of the present invention.
  • the refrigerator 1 includes a storage room 2 for storing foods such as vegetables and fruits.
  • the decomposition device 100 according to the first embodiment is installed in the storage room 2.
  • 2A is a schematic cross-sectional view of the disassembly device 100 according to an embodiment of the present invention when viewed from the front.
  • 2B is a schematic cross-sectional view when viewed from the side of the decomposition device 100 according to the embodiment of the present invention.
  • the dotted arrows shown in FIGS. 2A and 2B schematically show the irradiation direction of light emitted from the light source 8 included in the decomposition device 100.
  • 3A is a schematic cross-sectional view of the disassembly device 100 according to an embodiment of the present invention when viewed from the front.
  • 3B is a schematic cross-sectional view when viewed from the side of the disassembly device 100 according to the embodiment of the present invention.
  • the solid arrows shown in FIGS. 3A and 3B schematically show the flow direction of the cold air flowing in from the cold air inlet 14 of the decomposition device 100 and discharged from the cold air discharge port 16.
  • disassembly device 100 according to an embodiment of the present invention will be described with reference to FIGS. 2A to 3B.
  • the disassembly device 100 includes a cabinet 4. Inside the case 4, a food holding container 6a and a light source 8 for irradiating light to the food provided in the food holding container 6a are provided. A cold air inlet 14 and a cold air outlet 16 are also provided inside the box 4. The illuminance ( ⁇ W/cm 2) and/or irradiation time (H) of the light source 8 and the opening and closing of the cold air inlet 14 are controlled by the control unit 12 included in the decomposition device 100.
  • the case 4 includes an upper inner surface 4a, a lower inner surface 4b, a rear inner surface 4c, and two lateral inner surfaces 4d, 4e, and the case 4 is opened toward the front.
  • Each of the inner surfaces 4a to 4e is provided with a reflecting surface so as to cover the entire inner surface.
  • the box 4 itself may be formed of a reflective member.
  • the lower inner surface 4b of the case 4 is inclined so that the inner surfaces 4d and 4e on both sides become lower from the central portion 4b1. That is, as shown in FIG. 2A and FIG. 3A, in a cross-sectional view of the decomposition device 100 viewed from the front, the lower inner surface 4b has a convex shape with the highest central portion 4b1.
  • the food holding portion 6 is formed by a metal mesh-shaped bottom plate and side plates, and includes a food holding container 6a for installing food and a drawer door 6b connected to the food holding container 6a.
  • the food holding container 6a is stored in the case 4 in the form of a drawer.
  • the drawer door 6b covers the front opening of the case 4.
  • the inner surface 6c of the drawer door 6b is also provided with a reflecting surface so as to cover the entire inner surface 6c.
  • the size of the mesh of the food holding container 6a is such that the food provided in the food holding container 6a is not dropped but is held, and the light irradiation area under and on the side of the food can be sufficiently secured.
  • the mesh size in the embodiment is, for example, 3 cm ⁇ 3 cm.
  • the emission wavelength of the light source 8 is UV-C of 100 nm or more and 300 nm or less.
  • the light source 8 is, for example, LED or LD.
  • the decomposition device 100 according to this embodiment includes four light sources 8a to 8d.
  • the four light sources 8a to 8d are arranged to irradiate the food provided in the food holding container 6a from different directions.
  • the first light source 8 a and the second light source 8 b are provided on the upper inner surface 4 a of the cabinet 4.
  • the third light source 8c and the fourth light source 8d are respectively provided at the boundary between the lateral inner surfaces 4d and 4e of the case 4 and the lower inner surface 4b.
  • the positions of these light sources 8a to 8d are not limited to the above positions.
  • the number of light sources 8 is not limited to four.
  • the cold air inlet 14 in this embodiment is provided in the upper central portion of the rear inner surface 4c of the cabinet 4.
  • the decomposition device 100 includes an on-off valve 18 that opens and closes the cold air inlet 14.
  • a part of the cold air circulating in the refrigerator 1 flows into the storage room 2 from the cold air inlet 14.
  • a part of the cold air is a part of the cold air whose temperature is low among the circulating cold air.
  • the cold air in the inlet side air duct before flowing into the storage chamber 2 through the evaporator.
  • the cold air inlet 14 has an elliptical shape with a long axis of 10 cm and a short axis of 3 cm, for example.
  • the cold air inlet 14 is provided at a position where cold air directly hits the food.
  • the cold air discharge port 16 has a circular shape with a diameter of 10 cm, for example.
  • the cold air outlet 16 is provided near the light source 8.
  • the vicinity refers to a range within approximately 3 mm from the outer peripheral end of the light source 8.
  • the control unit 12 performs,
  • FIG. 4A shows the product of pesticide removal rate and UV-C illuminance ( ⁇ W/cm2) and irradiation time (H) (this product is referred to as UV irradiation index ( ⁇ W/cm2 ⁇ H) in this specification) Graph of an example of the relationship.
  • the vertical axis is the pesticide removal rate (%) of the irradiated part.
  • the horizontal axis is the UV irradiation index ( ⁇ W/cm2 ⁇ H).
  • the data on the relationship between the pesticide removal rate and the UV irradiation index is obtained by measuring the pesticide removal rate in the irradiated part of the food when the food is irradiated with UV-C, where UV-C is set to the illuminance and the irradiation time so that The UV irradiation index is in the range of 0 to 10000 ( ⁇ W/cm2 ⁇ H). This measurement was repeated to summarize the data, thereby creating a correlation graph of the relationship between pesticide removal rate and UV exposure index.
  • FIG. 4B shows the UV irradiation index ( ⁇ W/cm2 ⁇ H) when spinach is irradiated with UV-C and the appearance of spinach.
  • the above-mentioned “desioned “desioned numerical range" will be described with reference to FIGS. 4A and 4B.
  • the present invention will allow the residual pesticide to be decomposed to a level that meets the requirements of consumers to a certain extent, and the UV exposure index ( ⁇ W/cm2 ⁇ The range of H) is set to "desired numerical range".
  • the desired numerical range of the UV irradiation index is set to be 2000 ( ⁇ W/cm2 ⁇ H) or more and 6000 ( ⁇ W/cm2 ⁇ H) or less.
  • control unit 12 controls the illuminance ( ⁇ W/cm 2) and/or the irradiation time (H) of the light source 8 so that the UV irradiation index of the light emitted by the light source 8 is 2000 ( ⁇ W/cm 2 ⁇ H) or more and 6000 The following ( ⁇ W/cm2 ⁇ H).
  • the irradiation of the light source 8 is automatically controlled so that the UV irradiation index becomes 2000 ( ⁇ W/cm2 ⁇ H) or more and 6000 ( ⁇ W/cm2 ⁇ H) or less.
  • the opening and closing of the on-off valve 18 is controlled so that the temperature and humidity fall within the appropriate range.
  • the method of automatic control is, for example, the following method: when foods with weak resistance to UV-C irradiation are included, a mode of long-time irradiation with a small output is selected, and those without weak resistance to UV-C irradiation are excluded. In the case of food, the mode of short-time irradiation with a large output is selected, that is, the illuminance and the irradiation time are controlled.
  • the selection of the mode may be performed by the user via an interface such as a touch panel included in the disassembly device 100, or the control unit 12 may be used to recognize the stored food using an image sensor or the like.
  • the user wants to set the irradiation time to T hours under conditions such as cooking food stored in the decomposition device 100 after T hours.
  • a method of specifying the irradiation time for example, there is a method of converting a user's input into a signal and transmitting it to the control unit 12 via an interface such as a touch panel included in the decomposition device 100.
  • the interface is not limited to the interface included in the decomposition device 100, but may also be the interface included in the refrigerator 1.
  • control unit 12 controls the illuminance according to the irradiation time so that the UV irradiation index becomes 2000 ( ⁇ W/cm2 ⁇ H) or more and 6000 ( ⁇ W/cm2 ⁇ H) or less.
  • the method of specifying the illuminance is the same as the method of specifying the irradiation time.
  • the interface is not limited to the interface included in the decomposition device 100, and may also be the interface included in the refrigerator 1.
  • control unit 12 controls the irradiation time according to the illuminance so that the UV irradiation index becomes 2000 ( ⁇ W/cm2 ⁇ H) or more and 6000 ( ⁇ W/cm2 ⁇ H) or less.
  • the control unit 12 performs opening and closing control of the opening and closing valve 18 in accordance with predetermined conditions.
  • the following is a specific example to explain the control method of the control unit 12.
  • the control unit 12 opens the on-off valve 18 when the temperature in the case 4 becomes higher than the predetermined upper limit temperature ⁇ H, and when the temperature in the case 4 becomes lower than the predetermined lower limit temperature ⁇ L The on-off valve 18 is closed.
  • the upper limit temperature ⁇ H is, for example, 7°C
  • the lower limit temperature ⁇ L is, for example, 3°C.
  • the temperature in the cabinet 4 is transmitted to the control unit 12 via, for example, a temperature sensor provided in the cabinet 4.
  • control unit 12 may include not only temperature conditions but also humidity conditions to perform opening and closing control of the on-off valve 18.
  • the humidity of the cold air passing through the evaporator becomes low. If cold air with low humidity is supplied into the cabinet 4, the humidity in the cabinet 4 drops excessively, and the food in the cabinet 4 may be dried. Therefore, for example, the controller 12 opens the on-off valve 18 when the temperature in the cabinet 4 becomes higher than the predetermined upper limit temperature ⁇ H, and the humidity in the cabinet 4 becomes lower than the predetermined lower limit humidity HL The on-off valve 18 is closed.
  • the lower limit humidity HL is, for example, 20% to 22%.
  • the humidity in the cabinet 4 is transmitted to the control unit 12 by, for example, a humidity sensor provided in the cabinet 4.
  • the opening and closing control of the opening and closing valve 18 performed by the control unit 12 may perform the opening and closing control of the opening and closing valve 18 according to time conditions.
  • the control unit 12 may periodically open and close the on-off valve 18.
  • control unit 12 can perform opening and closing control of the on-off valve 18 based on conditions set by various combinations of temperature conditions, humidity conditions, and time conditions that can be conceived by those skilled in the art.
  • condition elements are not limited to temperature, humidity, and time.
  • the decomposition device 100 configured as described above can control the illuminance ( ⁇ W/cm 2) and/or the irradiation time (H) of the light source 8 by the control unit 12 so that the irradiation index ( ⁇ W/cm 2 ⁇ H) becomes a desired numerical range.
  • the irradiation index ⁇ W/cm 2 ⁇ H
  • the decomposition device 100 configured as described above, since the light emitted from the light source 8 is reflected in the cabinet 4 schematically shown in FIGS. 2A and 2B, the food stored in the cabinet 4 can be irradiated with light from multiple directions. Furthermore, since the food holding container 6a is formed of a mesh-shaped member, regardless of the position of the light source 8 and the installation state (orientation) of the food, the entire food is irradiated with light.
  • the disassembly device 100 configured as above includes a plurality of light sources 8, and the plurality of light sources 8 are provided to irradiate the food stored in the cabinet 4 from different directions.
  • the food can be irradiated with light from multiple directions, and the food can be irradiated with light substantially as a whole.
  • the decomposition device 100 configured as described above allows cold air circulating in the refrigerator 1 to flow into the cabinet 4 and discharge the cold air from the cold air discharge port 16 to the outside of the cabinet 4. Thereby, it is possible to prevent a situation in which the temperature in the cabinet 4 rises higher than a preset temperature due to the heat emitted from the light source 8.
  • the cold air discharge port 16 is provided near the light source 8, the cold air naturally flows around the light source 8, so that the light source 8 can be efficiently cooled.
  • the cold air inlet 14 is provided above the rear inner surface 4c of the cabinet 4, so the cold air flowing into the cabinet 4 will easily flow into the cabinet 4 due to the difference in specific gravity from the warmed air in the cabinet 4. Lower part. As a result, the entire interior of the cabinet 4 can be efficiently cooled.
  • the decomposition device 100 configured as described above can be controlled by the controller 12 to open and close the cold air inlet 14.
  • the controller 12 controls the controller 12 to open and close the cold air inlet 14.
  • the food holding container 6a is a net-shaped container, but it is not limited thereto.
  • the food holding container 6a may be a container formed of a member that can transmit light with a wavelength of 100 nm or more and 300 nm or less.
  • the food holding container 6a is housed in the case 4 in the form of a drawer in the above embodiment, it is not limited to this.
  • the food holding container 6a may be a holding container fixed in a box including an opening and closing door.
  • the cabinet 4 may be the storage compartment itself in the form of a drawer of the refrigerator 1.
  • the lower inner surface 4b is inclined so that the inner surfaces 4d and 4e on both sides are lowered from the central portion 4b1, and the cross section is convex, but it is not limited to this.
  • the lower inner surface 4b may be inclined so that the inner surfaces 4d and 4e on both sides increase from the central portion 4b1, and the cross section may be concave.
  • the inner surfaces 4d and 4e on both sides may be curved and inclined so as to become lower or higher from the central portion 4b1.
  • not only the lower inner surface 4b, but also the upper inner surface 4a, the rear inner surface 4c, and the side inner surfaces 4d, 4e may be inclined or curved.
  • control unit 12 is a dedicated control device of the decomposition device 100 in the above-described embodiment, it is not limited to this.
  • a part of the control device of the main body of the refrigerator 1 can control the illuminance ( ⁇ W/cm 2) and/or the irradiation time (H) of the light source 8 and the opening and closing control of the on-off valve 18.

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Abstract

提供了一种分解装置（100）以及包括分解装置（100）的冰箱（1），该分解装置（100）包括：照射部（8），其设置于冰箱的储藏室（2）内，向收容于储藏室（2）的食品照射波长为100nm以上且300nm以下的光；以及控制部（12），其控制照射部（8），以使光的照度与照射时间之积为2000~6000µw/cm 2•H。该分解装置（100）能以简易的构成来对储藏室（2）内收容的蔬菜水果等食品的残留农药进行分解，同时抑制食品的品质下降。

Description

分解装置以及包括分解装置的冰箱 技术领域
本发明涉及对附着于食品表面的残留农药进行分解的装置以及包括该装置的冰箱。
背景技术
近年，随着食品安全意识的提升，向食品照射紫外线来对附着于蔬菜或水果等的残留农药进行分解的装置受到关注。在这样的装置中，照射至食品的紫外线的总量会对残留农药的分解度以及食品的品质带来影响。也就是，若照射至食品的紫外线的总量过少，则残留农药无法被充分分解。另一方面，若照射至食品的紫外线的总量过多，则有可能使食品的品质下降。为了解决该问题，专利文献1中记载的冰箱除了设置发射紫外线的光源以外，还设置附加装置(氧富化装置以及氧浓度探测装置、泵或者次氯酸水溶液的生成供应装置以及波长为780nm～1mm的其他光源)，从而谋求农药的分解度与照射光对食品的伤害的平衡。
(现有技术文献)
(专利文献)
专利文献1：JP特开2010-216667号公报
然而，若像专利文献1中记载的分解装置那样设置附加装置，则可能会产生构成变得复杂、食品的收纳空间受限、制造成本变高等问题。故而，认为关于谋求农药的分解度与照射光对食品的伤害的平衡的方法，还存在改善的余地。
发明内容
本发明的目的是提供一种分解装置，能以简易的构成抑制食品的品质下降的同时高效地分解附着于食品的残留农药。
为了达成上述目的，本发明的分解装置包括：照射部，其设置于冰箱的储藏室内，且向收容于所述储藏室的食品照射波长为100nm以上且300nm以下的光；以及控制部，其控制所述照射部，以使光的照度(μW/cm2)与照射时间(H)之积为2000(μW/cm2×H)以上且6000(μW/cm2×H)以下，所述分解装置对附着于在所述储藏室内收容的食品的农药进行分解。
根据本发明，通过UV-C的适度的照射，能提供以简易的构成抑制对收容于储藏室内的食品带来的伤害的同时高效地分解附着于食品的残留农药的分解装置。
另外，本发明中，所述分解装置包括设置于所述储藏室内的箱体，在所述箱体的上方、下方以及两侧方的内表面设置有反射面，所述箱体的下方的反射面以从中央部朝所述箱体侧方变低的方式倾斜设置，在所述箱体内设置有用于保持食品的食品保持部，所述食品保持部由网状的构件或者能透射波长为100nm以上且300nm以下的光的构件形成。
根据本发明，由于从照射部出射的光在箱体内反射，因此能从多个方向对食品照射光。进而，由于食品保持部由网状的构件或能透射波长为100nm以上且300nm以下的光的构件形成，因此与照射部的位置以及食品的设置状态(朝向)无关地，对食品大致整体照射光。
另外，本发明中，所述照射部包括多个光源，所述多个光源设置为从不同的方向照射收容于所述储藏室的食品。
根据本发明，能从多个方向对食品照射光，能对食品的大致整体照射光。
另外，本发明中，所述分解装置包括：冷气流入口，其使在所述冰箱内循环的冷气流入所述箱体内或所述储藏室内；以及冷气排出口，其设置于所述光源的附近，将从所述冷气流入口流入的冷气排出至所述箱体外或所述储藏室外。
根据本发明，能防止因从光源发出的热所导致的箱体内或储藏室内的温度上升。
另外，本发明中，所述冷气流入口由所述控制部进行开闭控制。
根据本发明，通过将冷气流入口设为打开状态，能防止因从光源发出的热所致的箱体内或储藏室内的温度上升。另一方面，通过将冷气流入口设为关闭状态，能防止箱体内或储藏室内因冷气而过度干燥。
以上构成的分解装置能以简易的构成来抑制食品的品质下降的同时，高效地分解附着于食品的残留农药。
附图说明
图1是本发明的一实施方式所涉及的设置有分解装置的冰箱的示意性的主视图。
图2A是从正面观察本发明的一实施方式所涉及的分解装置时的示意性的剖视图，通过虚线箭头示意性地示出从光源出射的光的照射方向。
图2B是从本发明的一实施方式所涉及的分解装置的侧面观察时的示意性的剖视图，通过虚线箭头示意性地示出从光源出射的光的照射方向。
图3A是从正面观察本发明的一实施方式所涉及的分解装置时的示意性的剖视图，通过实线箭头示意性地示出冷气流动的方向。
图3B是从本发明的一实施方式所涉及的分解装置的侧面观察时的示意性的剖视图，通过实线箭头示意性地示出冷气流动的方向。
图4A是表示农药去除率与UV-C的照射时间和照射强度之积(UV照射指数)的关系的一例的曲线图。
图4B示出对菠菜照射UV-C时的UV照射指数和菠菜的外观。
(标号说明)
1 冰箱
2 储藏室
4 箱体
4a 箱体的上方内表面
4b 箱体的下方内表面
4c 箱体的后方内表面
4d、4e 箱体的侧方内表面
6 食品保持部
6a 食品保持容器
6b 抽屉门
6c 抽屉门的内表面
8 光源
8a 第一光源
8b 第二光源
8c 第三光源
8d 第四光源
12 控制部
14 冷气流入口
16 冷气排出口
18 开闭阀
100 分解装置
具体实施方式
参照附图来详细说明本发明的具体实施方式。
图1是本发明的一实施方式所涉及的设置有分解装置100的冰箱1的示意性的主视图。冰箱1包括对蔬菜水果等食品进行收容的储藏室2。在储藏室2内设置有第一实施方式所涉及的分解装置100。
图2A是从正面观察本发明的一实施方式所涉及的分解装置100时的示意性的剖视图。图2B是从本发明的一实施方式所涉及的分解装置100的侧面观察时的示意性的剖视图。图2A以及图2B所示的虚线箭头示意性地示出从分解装置100包括的光源8出射的光的照射方向。
图3A是从正面观察本发明的一实施方式所涉及的分解装置100时的示意性的剖视图。图3B是从本发明的一实施方式所涉及的分解装置100的侧面观察时的示意性的剖视图。图3A以及图3B所示的实线箭头示意性地示出从分解装置100的冷气流入口14流入且从冷气排出口16排出的冷气的 流动方向。
以下，参照图2A～图3B来说明本发明的一实施方式所涉及的分解装置100。
本发明的一实施方式所涉及的分解装置100包括箱体4。在箱体4的内部，设置有食品保持容器6a以及向设置于食品保持容器6a的食品照射光的光源8。在箱体4内部还设置有冷气流入口14和冷气排出口16。光源8的照度(μW/cm2)和/或照射时间(H)以及冷气流入口14的开闭由分解装置100所包括的控制部12进行控制。
(箱体)
箱体4包括上方内表面4a、下方内表面4b、后方内表面4c和2个侧方内表面4d、4e，箱体4朝前方开口。在各内表面4a～4e，以覆盖内表面整体的方式设置有反射面。另外，箱体4自身可以由反射构件形成。
箱体4的下方内表面4b以从中央部4b1朝两侧方内表面4d、4e变低的方式倾斜。也就是，如图2A以及图3A所示，在从正面观察分解装置100的剖视图中，下方内表面4b呈中央部4b1最高的凸形状。
(食品保持部)
食品保持部6由金属制的网眼状的底板以及侧板形成，包括用于设置食品的食品保持容器6a、以及与食品保持容器6a连接的抽屉门6b。食品保持容器6a以抽屉形式收纳于箱体4。在将食品保持容器6a收纳于箱体4内时，抽屉门6b覆盖箱体4的前方开口。抽屉门6b的内表面6c也以覆盖内表面6c整体的方式设置有反射面。食品保持容器6a的网眼的大小为如下尺寸：设置于食品保持容器6a的食品不会落下而是被保持，且能充分确保食品的下方以及侧方的光的照射区域。实施方式中的网眼的大小例如为3cm×3cm。
(光源)
光源8的出射波长为100nm以上且300nm以下的UV-C。光源8例如是LED或LD。本实施方式所涉及的分解装置100包括4个光源8a～8d。4个光源8a～8d设置为从不同方向对设置于食品保持容器6a的食品照射光。具体而言，第一光源8a以及第二光源8b设置在箱体4的上方内表面4a上。第三光源8c以及第四光源8d分别设置于箱体4的侧方内表面4d、4e与下方内表面4b的边界部。但这些光源8a～8d的位置不限于上述位置。另外，光源8的个数不限于4个。
(冷气流入口)
本实施方式中的冷气流入口14设置于箱体4的后方内表面4c的中央上部。分解装置100包括使冷气流入口14开闭的开闭阀18。在开闭阀18开启时，在冰箱1内循环的冷气的一部分从冷气流入口14向储藏室2内流入。在此，冷气的一部分是即使在循环的冷气当中温度也较低的冷气的一部分，在本实施方式中，例如是在经过蒸发器流入储藏室2前的入侧风道内的冷气。冷气流入口14例如呈长轴为10cm且短轴为3cm的椭圆形形状。冷气流入口14为了防止设置于食品保持容器6a 的食品干燥，设置在避免使冷气直接碰到食品的位置。
(冷气排出口)
从冷气流入口14流入箱体4内的冷气在箱体4内循环后，从设置于箱体4内的冷气排出口16向箱体4外排出。排出至箱体4外部的冷气例如向冰箱1的回风道流入，并恢复成在冰箱1内循环的冷气。冷气排出口16例如呈直径10cm的圆形形状。冷气排出口16设置于光源8的附近。在此，附近是指从光源8的外周端部起约3mm以内的范围。像本实施方式这样分解装置100包括多个光源8的情况下，冷气排出口16设置于各光源8的附近。
(控制部)
控制部12进行，
(1)光源8的照度(μW/cm2)和/或照射时间(H)的控制，以使光源8出射的光的照度(μW/cm2)与照射时间(H)之积处于期望的数值范围内，以及
(2)开闭阀18的开闭控制。
在此，图4A是表示农药去除率与UV-C的照度(μW/cm2)和照射时间(H)之积(在本说明书中将该积称为UV照射指数(μW/cm2×H))的关系的一个示例的曲线图。纵轴是被照射部的农药去除率(％)。横轴是UV照射指数(μW/cm2×H)。
农药去除率与UV照射指数的关系数据是向食品照射UV-C时对食品的被照射部中的农药的去除率进行测量而得到的，其中，UV-C被设定照度以及照射时间以使UV照射指数处于0～10000(μW/cm2×H)的范围内。重复该测量，汇总数据，从而创建了农药去除率与UV照射指数的关系的相关曲线图。
图4B示出在对菠菜照射UV-C时的UV照射指数(μW/cm2×H)和菠菜的外观。参照图4A以及图4B来说明上述“期望的数值范围”。
一般而言，若对食品照射UV-C时UV-C的总量少，也就是照射时间过短和/或照度过弱，则残留农药不被分解。另一方面，若UV-C的总量过多，也就是照射时间过长和/或照度过强，则食品受到伤害。故而，本发明基于图4A以及图4B所示的试验数据，将使残留农药可分解至一定程度上满足消耗者的要求的等级且食品的外观不会显著变化的UV照射指数(μW/cm2×H)的范围设定为“期望的数值范围”。
如图4A所示，随着UV照射指数增加，农药的分解率变高，在UV照射指数为2000(μW/cm2×H)以上时，残留农药分解60％以上。另一方面，如图4B所示，随着UV照射指数增加，食品的外观劣化，在UV照射指数为6000(μW/cm2×H)以上时，可观察到食品的外观显著变化。因此，在本实施方式中，设定为：UV照射指数的期望的数值范围的2000(μW/cm2×H)以上且6000(μW/cm2×H)以下。
基于以上，控制部12进行光源8的照度(μW/cm2)和/或照射时间(H)的控制，以使光源8 出射的光的UV照射指数为2000(μW/cm2×H)以上且6000以下(μW/cm2×H)。
(光源的控制)
列举几个例子来说明控制部12所执行的光源8的照度和/或照射时间的控制方法。
(1)自动控制
在箱体4内的温度以及湿度处于适当的范围时，对光源8的照射进行自动控制，以使UV照射指数成为2000(μW/cm2×H)以上且6000(μW/cm2×H)以下。在温度以及湿度未进入适当的范围的情况下，如后所述，对开闭阀18的开闭进行控制，以使温度以及湿度进入适当的范围。
自动控制的方法例如为如下方法：在包含对UV-C的照射抵抗力弱的食品的情况下，选择以小输出进行长时间照射的模式，在不含对UV-C的照射抵抗力弱的食品的情况下，选择以大输出进行短时间照射的模式，即，控制照度以及照射时间。关于模式的选择，例如可考虑由使用者经由分解装置100所包括的触摸面板等接口来进行，也可以考虑使用图像传感器等通过控制部12来对收容的食品进行识别。
(2)基于使用者的输入的控制
(a)使用者指定照射时间的情况
这是例如使用者想在T小时后对收容于分解装置100的食品进行烹饪等状况下将照射时间设定为T小时的情况。作为照射时间的指定方法，例如有如下方法：经由分解装置100所包括的触摸面板等接口，将使用者的输入变换为信号并向控制部12发送。接口不限于分解装置100所包括的接口，还可以是冰箱1所包括的接口。若照射时间被指定，则控制部12按照该照射时间来控制照度，以使UV照射指数成为2000(μW/cm2×H)以上且6000(μW/cm2×H)以下。
(b)使用者指定照射强度的情况
这是例如由使用者设定对收容于分解装置100的食品的照度的情况。照度的指定方法与照射时间的指定方法相同，例如有如下方法：经由分解装置100所包括的触摸面板等接口，将使用者的输入变换为信号并向控制部12发送。接口不限于分解装置100所包括的接口，还可以冰箱1所包括的接口。若照度被指定，则控制部12按照该照度来控制照射时间，以使UV照射指数成为2000(μW/cm2×H)以上且6000(μW/cm2×H)以下。
(开闭阀的控制)
接下来，针对控制部12所执行的开闭阀18的开闭控制方法进行说明。
控制部12按照预先设定的条件来进行开闭阀18的开闭控制。以下列举具体示例来说明控制部12的控制方法。
若光源8开始照射，则基于从光源8发出的热，箱体4内的温度上升，箱体4内的食品有可能腐败。故而，控制部12例如在箱体4内的温度变得高于预先规定的上限温度θH时使开闭阀18开启，并在箱体4内的温度变得低于预先规定的下限温度θL时使开闭阀18关闭。上限温度θH例如为 7℃，下限温度θL例如为3℃。箱体4内的温度例如经由设置于箱体4内的温度传感器而被传递至控制部12。
另外，控制部12可以不仅包含温度条件而且包含湿度条件来进行开闭阀18的开闭控制。经过蒸发器的冷气的湿度变低。若将湿度低的冷气供应至箱体4内，则箱体4内的湿度过度下降，箱体4内的食品有可能干燥。故而，例如，控制部12在箱体4内的温度变得高于预先规定的上限温度θH时使开闭阀18开启，并在箱体4内的湿度变得低于预先规定的下限湿度HL时使开闭阀18关闭。下限湿度HL例如为20％～22％。箱体4内的湿度例如通过设置于箱体4内的湿度传感器而被传递给控制部12。
另外，控制部12所执行的开闭阀18的开闭控制可以通过时间条件来进行开闭阀18的开闭控制。例如，控制部12可以定期地使开闭阀18开闭。
上述控制方法只是一例，控制部12能够基于通过本领域技术人员能想到的温度条件、湿度条件以及时间条件的各种组合而设定的条件来进行开闭阀18的开闭控制。另外，条件要素也不限于温度、湿度、时间。
以上构成的分解装置100能通过控制部12来控制光源8的照度(μW/cm2)和/或照射时间(H)，以使照射指数(μW/cm2×H)成为期望的数值范围。由此，通过UV-C的适度的照射，能够提供以简易的构成来限制对收容于箱体4内的食品带来的伤害的同时高效地分解附着于食品的残留农药的分解装置。
另外，关于以上构成的分解装置100，从光源8出射的光在图2A、图2B示意性所示的箱体4内反射，因此能从多方向对收容于箱体4内的食品照射光。进而，食品保持容器6a由网状的构件形成，因此与光源8的位置以及食品的设置状态(朝向)无关地，对食品大致整体照射光。
另外，以上构成的分解装置100包括多个光源8，多个光源8设置为从不同方向照射收容于箱体4的食品。由此，能从多方向对食品照射光，能对食品大致整体照射光。
另外，以上构成的分解装置100能使在冰箱1内循环的冷气流入箱体4内，并将该冷气从冷气排出口16排出至箱体4外。由此，能防止因从光源8发出的热所致的箱体4内的温度上升得比预先设定的温度更高的状况。
另外，冷气排出口16设置于光源8的附近，因此冷气理所当然在光源8的周围流动，能高效地冷却光源8。
另外，冷气流入口14设置于箱体4的后方内表面4c的上方，因此流入箱体4的冷气将由于与箱体4内的回暖的空气在比重上的差异，而容易流入箱体4的下部。由此，能高效地对整个箱体4内部进行冷却。
另外，以上构成的分解装置100能由控制部12进行冷气流入口14的开闭控制。由此，通过将冷气流入口14设为打开状态，能防止因从光源8发出的热所致的箱体4内的温度上升。另一方面， 通过将冷气流入口14设为关闭状态，能防止箱体4内因经由冷气流入口14流入箱体4内的冷气而过度干燥。
(变形)
在上述实施方式中，食品保持容器6a是网状的容器，但不限于此。例如，食品保持容器6a可以是由能透射波长为100nm以上且300nm以下的光的构件形成的容器。
另外，虽然在上述实施方式中，食品保持容器6a以抽屉形式收容于箱体4，但不限于此。例如，食品保持容器6a可以是固定于包括开闭门的箱体内的保持容器。另外，例如，箱体4可以是冰箱1的抽屉形式的储藏室本身。
另外，虽然在上述实施方式中，下方内表面4b以从中央部4b1朝两侧方内表面4d、4e变低的方式倾斜，且截面呈凸状，但不限于此。例如，下方内表面4b也可以以从中央部4b1朝两侧方内表面4d、4e变高的方式倾斜，且截面呈凹状。另外，例如，可以以从中央部4b1朝两侧方内表面4d、4e变低或变高的方式弯曲地倾斜。另外，不仅是下方内表面4b，而且上方内表面4a、后方内表面4c、侧方内表面4d、4e也可以倾斜或弯曲。
另外，虽然在上述实施方式中，控制部12为分解装置100的专用的控制装置，但不限于此。例如，冰箱1主体的控制装置的一部分可以进行光源8的照度(μW/cm2)和/或照射时间(H)的控制、以及开闭阀18的开闭控制。
虽然在本说明书中说明了本发明的实施方式、实施形态，但公开内容可以在构成的细节上变化，且实施方式、实施形态中的要素的组合或顺序的变化等能不脱离所请求的本发明的范围以及思想而得以实现。

Claims (10)

  1. 一种分解装置，其特征在于，包括：
    照射部，其设置于冰箱的储藏室内，且向收容于所述储藏室的食品照射波长为100nm以上且300nm以下的光；以及
    控制部，其控制所述照射部，以使光的照度与照射时间之积为2000以上且6000以下，所述照度的单位是μW/cm 2，所述照射时间的单位是小时H，
    所述分解装置对附着于在所述储藏室内收容的食品的农药进行分解。
  2. 根据权利要求1所述的分解装置，其特征在于，
    所述分解装置包括设置于所述储藏室内的箱体，
    在所述箱体的上方、下方以及两侧方的内表面设置有反射面，
    所述箱体的下方的反射面以从中央部朝所述箱体侧方变低的方式倾斜设置，
    在所述箱体内设置有用于保持食品的食品保持部，所述食品保持部由网状的构件或者能透射波长为100nm以上且300nm以下的光的构件形成。
  3. 根据权利要求2所述的分解装置，其特征在于，所述食品保持部由金属制的网眼状的底板以及侧板形成，包括用于设置食品的食品保持容器以及与食品保持容器连接的抽屉门。
  4. 根据权利要求3所述的分解装置，其特征在于，在将食品保持容器收纳于箱体内时，所述抽屉门覆盖所述箱体的前方开口，所述抽屉门的内表面也以覆盖内表面整体的方式设置有反射面。
  5. 根据权利要求1或2所述的分解装置，其特征在于，
    所述照射部包括多个光源，
    所述多个光源设置为从不同的方向照射收容于所述储藏室的食品。
  6. 根据权利要求5所述的分解装置，其特征在于，所述分解装置包括4个光源，第一光源以及第二光源设置在箱体的上方内表面上，第三光源以及第四光源分别设置于箱体的侧方内表面与下方内表面的边界部。
  7. 根据权利要求5所述的分解装置，其特征在于，
    所述分解装置包括：
    设置于所述储藏室内的箱体，
    冷气流入口，其使在所述冰箱内循环的冷气流入所述箱体内或所述储藏室内；以及
    冷气排出口，其设置于光源的附近，将从所述冷气流入口流入的冷气排出至所述箱体外或所述储藏室外。
  8. 根据权利要求7所述的分解装置，其特征在于，
    所述冷气流入口由所述控制部进行开闭控制。
  9. 根据权利要求7所述的分解装置，其特征在于，所述冷气流入口设置于所述箱体的后方内表面的中央上部。
  10. 一种冰箱，其特征在于，包括如权利要求1所述的分解装置。
PCT/CN2019/123037 2018-12-12 2019-12-04 分解装置以及包括分解装置的冰箱 Ceased WO2020119552A1 (zh)

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