WO2006009190A1 - 収納庫とそれを用いた冷蔵庫 - Google Patents
収納庫とそれを用いた冷蔵庫 Download PDFInfo
- Publication number
- WO2006009190A1 WO2006009190A1 PCT/JP2005/013352 JP2005013352W WO2006009190A1 WO 2006009190 A1 WO2006009190 A1 WO 2006009190A1 JP 2005013352 W JP2005013352 W JP 2005013352W WO 2006009190 A1 WO2006009190 A1 WO 2006009190A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mist
- water
- storage
- unit
- spray
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/14—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12
- A23B4/18—Preserving with chemicals not covered by groups A23B4/02 or A23B4/12 in the form of liquids or solids
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/015—Preserving by irradiation or electric treatment without heating effect
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/015—Preserving by irradiation or electric treatment without heating effect
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
-
- 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
- F25D17/042—Air treating means within refrigerated spaces
-
- 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
- F25D2317/00—Details 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
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
- F25D2317/0413—Treating air flowing to refrigeration compartments by purification by humidification
Definitions
- the present invention relates to a container having a mist spraying device for facilitating removal of mist by causing toxic substances such as agricultural chemicals adhering to crops such as vegetables and fruits to float, and a refrigerator using the same. About.
- Japanese Patent Laid-Open No. 9-75050 discloses a food washing apparatus.
- This food cleaning device has a function of removing harmful substances such as agricultural chemicals adhering to vegetables and fruits.
- Figure 48 shows such a conventional food cleaning device.
- Tap water is usually used as the cleaning liquid 2.
- a supply pipe 12 for supplying the cleaning liquid 2 is connected to the side wall of the cleaning tank 1, and a discharge pipe 13 for discharging the cleaning liquid is connected to the bottom of the cleaning tank 1.
- the supply pipe 12 and the discharge pipe 13 are provided with solenoid valves 14 and 15, respectively.
- the bubble generating unit 3 that generates fine bubbles in the cleaning liquid 2 includes an ejector 6, a fluid pump 4, and a branching unit 9.
- the ejector 6 is provided with a suction pipe 7 for sucking a gas that becomes fine bubbles.
- the fluid pump 4 conveys the cleaning liquid 2 and pressurizes the cleaning liquid 2 to dissolve the gas.
- the branch section 9 returns the cleaning liquid 2 in the cleaning tank 1 to the ejector 6 again.
- This cleaning solution 2 includes fine bubbles deposited by depressurizing the dissolved gas.
- a transport pipe 5 that transports the cleaning liquid 2 connects the cleaning tank 1 and the ejector 6, and the ejector 6 and the fluid pump 4.
- the discharge pipe 8 connects the fluid pump 4 and the branching section 9 via the liquid reforming section 16.
- the return pipe 11 connects the branch portion 9 and the ejector 6.
- the liquid reforming unit 16 elutes contaminants adhering to food.
- the liquid reforming section 16 is provided between the fluid pump 4 and the branch section 9.
- the cleaning liquid 2 is reformed so as to elute the pollutant when it comes into contact with the chlorosilicate compound.
- the pollution decomposition unit 17 includes an ozone generator 18, a gas pump 19, and a solenoid valve 20.
- the ozone generator 18 generates ozone using high-pressure discharge.
- the gas pump 19 supplies the ozone generated by the ozone generator 18 to the cleaning tank 1.
- the solenoid valve 20 prevents the supply of ozone and the inflow of the cleaning liquid 2.
- the fluid pump 4 operates, and the cleaning liquid 2 is transported to the ejector 6 through the transport pipe 5.
- the cleaning liquid 2 entrains the air sucked from the suction pipe 7 provided in the ejector 6.
- the air entrained in the cleaning liquid 2 is pressurized by the fluid pump 4 and dissolved in the cleaning liquid 2.
- the cleaning liquid 2 is activated by the liquid reforming unit 16 through the discharge pipe 8. Then, the cleaning liquid 2 is pressurized by the pressure reducing nozzle 10 and ejected into the cleaning tank 1 in a state where fine bubbles are generated by the precipitation of dissolved air. In order to depressurize the pressurized cleaning liquid 2, the pressure reducing nozzle 10 increases the pressure loss and decreases the ejection flow rate. Therefore, the excess cleaning liquid 2 is guided to the return pipe 11 and circulates in the bubble generation unit 3.
- the pollution decomposition unit 17 is operated, and ozone is supplied to the cleaning liquid 2 in the cleaning tank 1. Agricultural crops such as vegetables and fruits in washing tank 1 are washed with washing liquid 2.
- the storage of the present invention includes a box and a mist spraying device.
- the box has a storage room for crops inside.
- the mist spraying device sprays liquid into the storage chamber to generate mist.
- the mist spraying device lifts up harmful substances attached to the surface of the crop stored in the storage room, or attaches the mist to the harmful substances attached to the surface of the crop stored in the storage room. .
- the refrigerator of the present invention is configured by adding a cooling device to the storage and using a heat insulating box as a box.
- FIG. 1 is a side sectional view of a storage case according to Embodiment 1 of the present invention.
- FIG. 2 is a side cross-sectional view of a replenishing section in the storage shown in FIG.
- FIG. 3 is a cross-sectional plan view of a replenishing section in the storage shown in FIG.
- FIG. 4 is a side cross-sectional view of a storage case in Embodiment 2 of the present invention.
- FIG. 5 is a side sectional view of the refrigerator in the third embodiment of the present invention.
- FIG. 6 is a side sectional view of the mist spraying device in the refrigerator shown in FIG.
- FIG. 7 is a cross-sectional view taken along line AA of the mist spraying apparatus shown in FIG.
- FIG. 8 is a diagram showing the pesticide removal performance of the mist spraying device shown in FIG.
- FIG. 9 is a graph showing the characteristics of the pesticide removal performance of the mist spraying apparatus shown in FIG. 6 with respect to the mist particle diameter.
- FIG. 10 is a diagram showing the characteristics of the mist spraying performance of the mist spraying device shown in FIG. 6 with respect to the mist spray amount.
- FIG. 11 is a side cross-sectional view of the refrigerator in the fourth embodiment of the present invention.
- FIG. 12 is a longitudinal sectional view of the mist spraying device for the refrigerator shown in FIG.
- FIG. 13 is a front view of the vicinity of the mist spraying device shown in FIG.
- FIG. 14 is a longitudinal sectional view of an essential part of the mist spraying device shown in FIG.
- FIG. 15 is a functional block diagram of the mist spraying device shown in FIG.
- FIG. 16 is a control flow diagram of the mist spraying device shown in FIG.
- FIG. 17 is a longitudinal sectional view of another mist spraying device in Embodiment 4 of the present invention.
- FIG. 18 is a characteristic of the mist spraying performance of the mist spraying device shown in FIG. 12 with respect to the mist particle diameter.
- FIG. 19 is a diagram showing the characteristics of the mist spraying performance of the mist spraying apparatus shown in FIG. 12 with respect to the amount of mist spraying.
- FIG. 20 is a correlation diagram between the particle diameter of mist, the spray amount, and the pesticide removal effect in Embodiment 5 of the present invention.
- FIG. 21A is a diagram showing characteristics of the pesticide removal performance with respect to the mist particle diameter in the fifth embodiment of the present invention.
- FIG. 21B is a diagram showing characteristics of the pesticide removal performance with respect to the mist spray amount in the fifth embodiment of the present invention.
- FIG. 22 is a side cross-sectional view of the refrigerator in the sixth embodiment of the present invention.
- FIG. 23 is a longitudinal sectional view of the vicinity of the spray section of the refrigerator shown in FIG.
- FIG. 24 is a longitudinal sectional view of another mist spraying apparatus according to Embodiment 6 of the present invention.
- FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator according to Embodiment 7 of the present invention.
- FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
- FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention.
- FIG. 27B is a partial front view schematically showing the refrigerator shown in FIG. 27A.
- FIG. 28 is a side sectional view of the vicinity of the vegetable compartment of the refrigerator according to the ninth embodiment of the present invention.
- FIG. 29 is a front sectional view of the vicinity of the vegetable compartment of the refrigerator shown in FIG.
- FIG. 30 is a cross-sectional view of the principal part showing the AA cross section in FIG. 29.
- FIG. FIG. 31 is a cross-sectional view of the principal part showing the BB cross section in FIG. 29.
- FIG. 32 is a graph showing a particle size distribution ratio of mist sprayed in the ninth embodiment of the present invention.
- FIG. 33 is a side sectional view of the refrigerator in the tenth embodiment of the present invention.
- FIG. 34 is a side sectional view of the vegetable compartment of the refrigerator shown in FIG.
- FIG. 35 is an enlarged view of a main part of the mist spraying device for the refrigerator shown in FIG.
- FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG. 33.
- FIG. 37 is an enlarged view of a main part of another mist spraying apparatus for a refrigerator according to Embodiment 10 of the present invention.
- FIG. 38 is an enlarged view of a main part of still another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
- FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention.
- FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
- FIG. 41 is a diagram showing the pesticide removal performance of the refrigerator mist spraying device and the decomposition unit shown in FIG.
- FIG. 42 is a diagram showing the proportion of pesticides remaining in the wash water after the treatment by the mist spraying device and the decomposition unit of the refrigerator shown in FIG. 39.
- FIG. 43 is a side sectional view of another refrigerator according to the eleventh embodiment of the present invention.
- FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG. 43.
- FIG. 45 is a diagram showing the decomposition performance according to the irradiation time of the decomposition section of the refrigerator shown in FIG.
- FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention.
- FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG. 46.
- FIG. 48 is a schematic configuration diagram of a conventional food washing apparatus.
- the storage according to the present invention includes a box and a mist spraying device.
- the box has a storage room for crops inside.
- the mist spraying device generates a mist by spraying a liquid in the storage chamber, so that the mist causes the harmful substances of agricultural chemicals adhering to the surface of the crop stored in the storage chamber to rise, or the mist is stored in the storage chamber. Adhere to the harmful substances of pesticides attached to the surface of the cultivated crops. As a result, the sprayed mist enters the fine recesses on the crop surface, and the pesticidal harmful substances remaining in the recesses are removed by the synergistic effect of the physical and chemical action. Or, by attaching mist to harmful substances such as pesticide residues, the harmful substances are lifted with a small amount of water to facilitate removal.
- Such a configuration can be applied to various forms for storing agricultural products such as vegetable rooms in refrigerators and containers for distribution.
- a transport container used for transporting crops is used as a box.
- harmful substances can be removed or lifted before the food stored in the storage room is delivered to the consumer.
- FIG. 1 is a side cross-sectional view of a storage case according to Embodiment 1 of the present invention
- FIG. 2 is the storage shown in FIG. It is a sectional side view of the water supply part in a store
- FIG. 3 is a cross-sectional plan view of the replenishing section in the storage shown in FIG.
- the storage 70 is provided with a storage room 71 for storing agricultural products in the box 60.
- the storage 70 also has a mist spraying device 61 inside the storage chamber 71.
- the box 60 is a transportation container and is mounted on the automobile 62 and used for transportation. In addition, it may be transported on board an airplane or ship.
- the mist spraying device 61 includes a water storage tank 72, a water supply path 73, and a replenishment unit 74. From the water storage tank 72, the water supply path 73 supplies water to the supply section 74. The supply part 74 is provided on the upper top surface of the storage room 71.
- the replenishing unit 74 includes a water storage tank 75 that is a holding unit for storing water, a spraying unit 76, and a blower unit 77 that blows mist generated by the spraying unit 76 into the storage chamber 71.
- the spray unit 76 includes a metal mesh 81 and a metal plate 82 located at the bottom of the water storage tank 75, an ultrasonic element 80 and a power source 83 provided outside.
- the ultrasonic element 80 atomizes water by an ultrasonic method.
- the metal mesh 81 transmits only mist having a predetermined particle size or less.
- the stored water 84 in the water tank 75 is supplied from the water supply path 73 and stored in the water tank 75.
- a temperature sensor 85 that detects the temperature in the storage is provided at one corner of the storage room 71.
- the water stored in the water storage tank 72 is supplied into the water storage tank 75 via the water supply path 73 and stored as the stored water 84.
- the stored water 84 is atomized by the ultrasonic element 80.
- the replenishment section 74 is filled with mist of a predetermined particle or less.
- the fine mist in the replenishing section 74 is sprayed as mist in the storage chamber 71 by the blower section 77.
- the fine mist adheres to the surface of crops such as vegetables and fruits in the storage room 71 and penetrates into the fine recesses on the surface of the crops.
- Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of this fine mist.
- the mist adheres and the harmful substances are removed more easily than in the case.
- the mist when the mist is charged, it electrically enters the fine recesses on the crop surface and chemically reacts with residual agricultural chemicals and wax. Therefore, the hydrophilicity of harmful substances It is taken up in the mist and decomposed and removed.
- the mist may only be attached to the harmful substance.
- toxic substances are dissolved in the mist, or mist is dissolved in the toxic substances to dilute the toxic substances.
- the mist adheres and the harmful substances are removed more easily than in the case.
- Mist refers to water that has been split into fine particles and formed into an ultrafine particle. Its particle diameter ranges from a visible number of m to a number of invisible nm, and the properties of the liquid. have
- an appropriate amount of fine mist that can enter the recesses of the cell gaps with the mist spraying device 61 is sprayed with respect to the agricultural products being stored in the storage chamber 71.
- the sprayed mist enters the fine recesses on the surface of the crop, causing harmful substances such as residual pesticides attached to the surface of the crop stored in the storage room 71 to rise, or using the mist as a harmful substance.
- harmful substances such as residual pesticides attached to the surface of the crop stored in the storage room 71 to rise, or using the mist as a harmful substance.
- Vegetables and fruits are transported to a supermarket or the like after harvesting, but transportation requires a long time. Using this time, mist is sprayed on vegetables and fruits stored in the storage room 71. As a result, pre-treatment for facilitating the removal of residual pesticides can be performed so that consumers can live with a safe diet.
- the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency. That is, an atomizer that generates mist by vibration energy does not decompose water particles by electrolysis or the like, so that there are cases where misting can occur without changing water components.
- the device is configured to mistoy the water component as it is depending on how vibrational energy is applied, for example, some component is compared with pure water such as alkaline ion water or negative ion water. Even if the added functional water is used, it becomes possible to misto the components as they are, and any water that meets the needs of the user can be supplied as a mist.
- the temperature zone can be adjusted.
- the temperature sensor 85 detects a temperature higher than a preset temperature, If the cooling device is operated, the freshness of the crops can be maintained in the refrigerated temperature zone at high temperatures such as in summer.
- the humidity in the storage room 71 becomes 90% or higher, the vegetation of the vegetables, in particular, can be prevented from evaporating, and the deterioration rate of the food stored in the storage room 71 becomes slow. This improves the efficiency of hydration by mist.
- the humidity sensor is provided in the storage chamber 71, and the spraying section 76 is driven according to the change in the air quality in the storage chamber 71, thereby improving the hydration efficiency by mist. Can be made.
- the spray unit 76 of the type that generates mist by vibration energy finely divides water droplets using vibration energy of high frequency.
- the particle diameter of the mist is adjusted by V using the metal mesh 81 for the ultrasonic element 80 in the spray unit 76, but the metal facing the metal mesh 81 is used.
- the particle size of the mist can be adjusted by making the particle size of the mist finer. Is possible.
- the fine mist added with negative charges adheres to the positively charged interior walls, vegetables, fruit surfaces, etc., and the mist enters the interior walls and the fine holes on the vegetables and fruits surfaces. Mu Therefore, it is easier to lift and remove the harmful substances attached to the vegetable surface.
- a storage container used for storing crops after harvesting is used as a box. This allows harmful substances to be removed or lifted before shipping the food stored in the storage room. It is also possible to remove or lift harmful substances using the storage time.
- FIG. 4 is a side cross-sectional view of the storage case according to Embodiment 2 of the present invention.
- the storage 90 in the present embodiment has a box 63 and a mist spraying device 61.
- Box 63 is a storage container and is used to store crops after harvesting.
- the other configuration is the same as that of the first embodiment.
- the box 63 is used for storing food after harvesting crops such as vegetables and fruits stored in the storage room 71.
- crops such as vegetables and fruits stored in the storage room 71.
- the mist spraying device 61 in the storage chamber 71 in such a box 63 the mist is sprayed on the crops stored in the storage chamber 71 using the time during the storage in the storage chamber 71. Is done. This makes it possible to perform pre-treatment to facilitate the removal of residual pesticides so that consumers can live with peace of mind. This makes it possible to remove the agricultural chemicals in a storage state before being sold at a store, for example, and to provide a safer vegetable for consumers.
- Preference for atomization, the effect of charging liquid, mist, the effect of imparting a temperature adjustment function, and the like are the same as in the first embodiment.
- the storage of the present invention includes a box and a mist spraying device.
- the box has a storage room for storing crops.
- the mist spraying device has a spraying section for spraying liquid into the storage chamber.
- the mist spraying device lifts up harmful substances such as residual agricultural chemicals attached to the crop surface by the generated mist. Or attach mist to harmful substances such as residual agricultural chemicals.
- the sprayed mist enters the fine recesses on the surface of the crop, and the harmful substances of the pesticide remaining in the recesses are removed by the synergistic effect of the physical and chemical action of the mist. Therefore, harmful substances such as pesticides can be lifted with a small amount of water, or mist adheres to harmful substances such as residual agricultural chemicals. Therefore, it is easy to remove harmful substances.
- the storage box of the present invention is provided with a water storage tank as a holding unit for holding the liquid.
- a water storage tank as a holding unit for holding the liquid.
- the mist spraying device of the storage of the present invention has a water storage tank as a supply unit.
- the water is retained by the user supplying water into the external-powered storage tank. This allows the user to always replenish fresh water and to store a certain amount of stored water in advance. Therefore, even when there are many foods stored in the storage room, a sufficient amount of water can be replenished.
- the holding unit of the storage of the present invention holds the water extracted from the moisture power contained in the air in the storage chamber.
- the stored water retained in this way is retained in the water retention device.
- the user can replenish the food stored in the storage chamber without replenishing water from the outside, so that maintenance is not time-consuming.
- the mist spraying part of the storage of the present invention has a spraying tip part which is a part from which mist is discharged, and at least the spraying tip part is provided in the storage chamber. Therefore, mist particles can be sprayed directly to the storage room where the crops are stored. Also spray tip The distance between the department and the crop can be further reduced. Therefore, for example, the mist particles can be prevented from being vaporized as compared with the case where the mist is sprayed outside the storage chamber and the force is also fed into the storage chamber. In addition, the flow rate of mist in the floating state can be increased, and the adhesion rate of mist to the crop surface can be further increased.
- the supply section in the mist spraying device of the storage of the present invention is provided with a spray section and is provided in a section different from the section!
- the supply unit can be provided at any position that is not affected by the position of the spray unit and that facilitates replenishment of water into the water storage tank and cleaning of the water storage tank. As a result, the user convenience is improved.
- the spray part in the present invention generates a mist having a particle size of 0.003 m to 20 m, so that the mist efficiently invades the fine recesses on the surface of the crop. Therefore, harmful substances such as agricultural chemicals can be lifted up to the details.
- the amount of mist sprayed in the spray section in the present invention is 0.0007-0.14 g / h'U, so that an amount necessary to lift harmful substances such as agricultural chemicals is sprayed. As a result, both the effect of removing harmful substances such as agricultural chemicals and storage stability are achieved.
- the mist generated in the mist spraying apparatus of the present invention is an acid-decomposable mist, so that the mist has an oxidative degradation power and oxidatively decomposes harmful substances such as agricultural chemicals to increase hydrophilicity. . Therefore, the effect of raising harmful substances such as agricultural chemicals is improved.
- the mist generated in the mist spraying apparatus of the present invention is ozone mist.
- harmful substances such as agricultural chemicals are strongly oxidized and decomposed, and the harmful substances can be converted into safe substances by decomposition.
- the mist generated in the mist spraying apparatus of the present invention is made into an alkali-decomposable mist, so that the mist has an alkali-decomposable property, so that harmful substances such as agricultural chemicals are alkali-degraded and converted into safe substances. be able to.
- the mist generated by the mist spraying apparatus in the present invention is a mist containing radicals, which decomposes harmful substances such as agricultural chemicals and converts them into safe substances by the strong acid-oxidizing ability of radicals. Can do.
- the spray section in the present invention generates mist by an electrostatic atomization method.
- high-voltage electrical energy is used to break up and subdivide the water droplets. Since the fine mist is generated, the generated mist is charged. For this reason, the mist adheres to the crops due to the positive and negative adsorptive power of the charge, and the mist adheres more uniformly to the vegetable surface.
- the mist adherence rate is further improved compared to the charged mist! / ,! As a result, it becomes possible to remove the agricultural chemicals more effectively.
- the mist spray amount of the spray portion of the electrostatic atomization method in the present invention is preferably set to 0.0007 to 0.007 g / h'L.
- the mist generated by the spraying part of the electrostatic atomization system is charged and the mist adheres to the crops at a high rate. Therefore, compared with the case of spraying a mist of an uncharged type, the same adhesion rate can be obtained, and the removal of agricultural chemicals can be performed more effectively.
- the spray portion in the present invention generates mist having a particle size of 0.003-0.
- an electrostatic atomization spray unit When an electrostatic atomization spray unit is used, the charged energy of the mist becomes weaker as the particle diameter of the mist increases.
- an electrostatic atomization method within the above particle size range, it is possible to generate mist with a sufficient charge to increase the adhesion rate to vegetables. Can be more effectively removed.
- an ultrasonic atomizing spray unit can be used.
- mist is generated by such a spraying section, water droplets are finely divided using high-frequency vibration energy. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. As a result, the safety associated with the generation of mist can be further enhanced and energy saving can be achieved.
- the amount of mist sprayed in the spray section of the ultrasonic atomization method in the present invention is preferably set to 0.014-0.14g Zh'L.
- an ultrasonic atomizing spray unit When an ultrasonic atomizing spray unit is used, water droplets are finely dispersed using high-frequency vibration energy, so as the spray amount decreases, the generated vibration energy decreases and the mist sprayed. The kinetic energy given to becomes smaller. For this reason, the flying distance of mist tends to be small.
- the ultrasonic atomization method within the range of the amount of mist, it is possible to generate mist that has diffusibility into the warehouse and has a flight distance that reaches the vegetable surface. It becomes possible to remove agricultural chemicals more effectively by the sonic atomization method.
- the mist particle diameter of the spray portion of the ultrasonic atomization method in the present invention is set to 0.5 to 20 ⁇ m. It is preferable. In the case of using an ultrasonic atomization spray section, it is necessary to finely drop water droplets using vibration energy at a high frequency as the particle diameter of the mist is reduced. For this reason, the higher the frequency, the greater the number of vibrations and the shorter the lifetime of the ultrasonic atomization method. However, by using the ultrasonic atomization method within the above particle size range, sufficient durability is ensured even in refrigerators that require long-term durability, especially among household appliances with an average service life of about 10 years. Sex is obtained. Therefore, it becomes possible to further improve the reliability of removing agricultural chemicals by the ultrasonic atomization method.
- FIG. 5 is a side sectional view of the refrigerator according to Embodiment 3 of the present invention.
- FIGS. 6 and 7 are a side sectional view and a sectional view taken along line AA of the mist spraying device in the refrigerator shown in FIG. 5, respectively.
- the heat insulating box 110 is partitioned from above by the partition plate 111 into a refrigerator compartment 112, a switching compartment 113, a vegetable compartment 114, and a freezer compartment 115.
- An evaporator 102 is provided at the back of the freezer compartment 115.
- the evaporator 102 is connected with a compressor 104 provided in the machine room 103, a condenser 105 provided in the lower part of the refrigerator, and an expansion valve (not shown) through a pipe, which compresses and evaporates the refrigerant sealed inside. This constitutes a cooling device that cools the inside of the refrigerator.
- the cold air generated in the evaporator 102 is cooled by being conveyed to each storage room via the air passage 229.
- the inside of the switching chamber 113 can be used by switching whether it is kept at the refrigeration temperature by being cooled by the evaporator 102 through a ventilation path (not shown).
- a partition plate 111A for separating the air passage 229 and the vegetable compartment 114 is disposed on the back of the vegetable compartment 114.
- An air passage 229 is provided between the partition plate 111A and the main body outer wall 202.
- the air path 229 conveys, for example, the cold air generated in the evaporator 102 to each storage chamber, or conveys the heat exchanged air from each storage chamber to the evaporator 102. That is, a vegetable room 114 which is a storage room for storing agricultural products is provided inside the heat insulation box 110 which is a box.
- the cooling device cools the inside of the vegetable compartment 114.
- the vegetable compartment 114 is constituted by a heat insulating wall 116, and the inside of the vegetable compartment 114 is kept at a humidity of about 90% RH or more (when food is stored) and cooled to 4 to 6 ° C.
- a mist spraying device 120 is provided on top of vegetable room 114.
- the mist spraying device 120 includes a water storage tank 122 that stores the stored water 124, a spraying unit 123, and a blowing unit 129 that blows the mist generated by the spraying unit 123 into the vegetable compartment 114.
- the spraying section 123 is located inside the water tank 122.
- the spray unit 123 includes a capillary supply structure 133, a cathode 134 as a first electrode, an anode 135 as a second electrode, and a power source 128.
- One end of the capillary supply structure 133 is immersed in the stored water 124, and the other end forms a spray tip portion 132 in the water storage tank 122. That is, the spray tip 132 is provided in the vegetable compartment 114.
- the negative electrode 134 and the positive electrode 135 are installed in a section of the water storage tank 122.
- the cathode 134 applies a negative high voltage to the stored water 124.
- the anode 135 faces the cathode 134.
- the power supply 128 applies a high voltage between the cathode 134 and the anode 135.
- defrost water is stored in the water storage tank 122 to become the stored water 124. That is, the water storage tank 122 is a holding unit that extracts and holds the moisture contained in the air in the vegetable compartment 114.
- the power supply 128 applies a high voltage between the cathode 134 and the anode 135. Then, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. This liquid yarn is further dispersed into charged droplets, resulting in a fine mist of 0.1 m or less.
- discharge occurs during electrostatic atomization, trace amounts of ozone and radicals are generated at the same time when mist is generated. This ozone mixes immediately with the mist to produce a low concentration of ozone mist.
- a radical is a molecule having an unpaired electron and strong acidity.
- This ozone mist is sprayed into the vegetable compartment 114 by the blower 129. Since the sprayed ozone mist is electrostatically added, it adheres electrically to the surface of agricultural products such as vegetables and fruits that are positively charged in the vegetable compartment 114 and to the inner wall surface. It then penetrates into the fine recesses on the surface of the crop. Hazardous substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the mist. As a result, when the user washed the crops with water, the pesticides are more easily removed than when the mist is not attached. Furthermore, harmful substances are oxidatively decomposed and removed by the oxidative degradation of ozone. Or electrical The mist that has entered the fine recesses chemically reacts with harmful substances. This increases the hydrophilicity of harmful substances, which are taken up and decomposed in the mist.
- the harmful substance dissolves in the mist only by attaching the mist to the harmful substance, for example. Or, the mist dissolves in the hazardous substance and the harmful substance is diluted, so that when the user wash the crop with water, the mist adheres more easily than in the case. Removed.
- the mist spraying device 120 generates fine mist by breaking up and subdividing water droplets using electric energy.
- the mist spraying device 120 uses an electrostatic atomization method. Therefore, the generated mist is charged, and attaches to the crops by the positive and negative adsorption power of the charge. Therefore, mist adheres uniformly to the crop surface.
- the adhesion rate to crops is improved compared to mist that is not charged. Therefore, harmful substances such as agricultural chemicals are effectively removed.
- FIG. 8 is a diagram comparing the pesticide removal performance of the mist spraying device 120 shown in FIG. 6 with conventional immersion specifications and washing with water.
- 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification.
- the removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
- treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
- Process B is equivalent to a process using a general food cleaning device. 10 cherry tomatoes are immersed in 2 L of water containing 1 ppm of ozone for 1 hour, and bubbles are cleaned with ozone.
- treatment C 10 cherry tomatoes are subjected to mist spray treatment for 12 hours using a mist spraying device 120.
- treatment D 10 cherry tomatoes are sprayed with mist for 12 hours, then placed in a basket and washed with running water for about 10 seconds.
- the ozone gas concentration in Process C and Process D is about 0.03 ppm.
- the particle size of mist in treatment C and treatment D is 0.003 ⁇ m. The amount is 0.0007 g / h'L.
- the removal rate in the treatment A is 20%, and it can be seen that 80% of the residual agricultural chemicals are not removed by ordinary water washing, and are taken into the human body. Treatment B also removes 55% of the pesticide residue.
- the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B. Furthermore, the removal rate for treatment D is 70%. This is thought to be due to the attached pesticides floating up and coming off easily due to the physical action of ultra fine mist. From the above results, the refrigerator having the mist spraying device 120 in the present embodiment has almost the same pesticide removal performance as a dedicated food washing machine.
- FIG. 9 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the water particle diameter of the mist in the present embodiment.
- the mist spraying time and spraying amount are the same as in processes C and D in Fig. 8.
- the malathion removal rate is about 50% when the mist particle size is 0.5 ⁇ m or less.
- the reason why the removal rate of malathion is about 70% is that the mist particle size is 0.1 ⁇ m or less. This is considered to be because the mist particle size becomes finer and the surface of the crop surface easily gets into the irregularities. In other words, it is considered that the finer the mist particle size, the more easily harmful substances adhere to the mist particles, or it becomes easier to incorporate harmful substances into the mist particles.
- the removal rate is reduced. This is presumably because, when the spray part 123 is of the electrostatic atomization type, the charged energy of the charge becomes weaker as the particle diameter of the mist increases. Therefore, when applying the electrostatic atomization method, controlling the mist particle size to 0.5 m or less generates mist with sufficient charge to increase the adhesion rate to crops.
- the reason why the malathion removal rate is about 50% is that the particle diameter of the mist is 0.003 ⁇ m or more.
- the reason why the removal rate of malathion is about 70% is that the mist particle size is 0.005 m or more. This is presumably because when the water particle size is less than 0.003 ⁇ m, the particles are too small, the frequency of contact with malathion decreases, and the removal effect decreases.
- the particle diameter is 0.005 ⁇ m or more as compared with the case where the particle diameter of the mist exceeds 0.1 ⁇ m. .
- the removal rate is higher in the case of 1 ⁇ m or less. This is thought to be due to the large number of radicals when the particle size is small. For this reason, the reactivity with malathion increases and the removal rate increases.
- the mist particle size in order to achieve a pesticide removal rate of 50% or more with the electrostatic mist type mist spraying device 120, the mist particle size should be 0.003 111 to 0.5 m. In order to achieve a pesticide removal rate of 70% or more, the mist particle size should be 0.005 ⁇ m or more and 0.1 ⁇ m or less. In order to control the mist particle size in this way, in this experiment, the particle size was adjusted by changing the applied voltage to the mist spraying device 120. For example, the diameter and length of the capillary supply structure 133 were changed. However, the particle diameter can be adjusted.
- FIG. 10 is a diagram showing the relationship between the agrochemical removal effect of the mist spraying device 120 and the mist spray amount in the present embodiment.
- the mist spraying time and mist particle size are the same as those of Processes C and D in Fig. 8.
- the volume of the vegetable compartment in this experiment is 70 liters (L).
- the spray amount needs to be 0.007 gZh'L or more, and the pesticide removal effect improves as the spray amount increases. ing.
- the spray amount exceeds 0.007gZh'L, although there is a pesticide removal effect, the generated ozone concentration exceeds 0.03ppm.
- the ozone concentration of 0.03 ppm is a level that does not cause ozone odor and is the upper limit of the ozone concentration that has a pesticide-degrading effect without causing adverse effects such as tissue damage to vegetables.
- the appropriate range of spray amount is 0.0007 gZh'L or more and 0.007 gZh'L or less.
- the ozone decomposition catalyst If the ozone concentration can be reduced with an ozone decomposition catalyst ozone decomposition device, etc., even if it is 0.07 gZh'L or more, the spray amount will be 10 times, for example, 0.0g / h-L. May increase. This upper limit expansion range depends on the capacity of the added ozonolysis catalyst.
- a refrigerator having a simple structure and a function of removing harmful substances such as agricultural chemicals can be obtained. Users can easily remove pesticides and other harmful substances simply by storing vegetables and fruits in the refrigerator.
- the mist spraying device 120 sprays the mist into the vegetable compartment 114.
- the sprayed mist enters the fine recesses on the crop surface and removes harmful substances such as pesticides remaining in the recesses by the synergistic effect of physical and chemical action. In this way, harmful substances such as pesticides can be removed with a small amount of water.
- the mist spraying device 120 generates mist having a particle size useful for removing agricultural chemicals on the surface of agricultural products. As a result, the mist efficiently penetrates into the fine recesses on the crop surface and removes harmful substances such as agricultural chemicals to the finest detail.
- the particle diameter of the mist is preferably 0.003 m or more and 0.5 m or less.
- the mist spray amount of the mist spray device 120 is preferably set to 0.007 gZh'L or more and 0.07 g / h'L or less. As a result, the amount of spray necessary for removal of harmful substances is secured, the removal effect of harmful substances is demonstrated, and the preservation of crops is also secured.
- the fine mist adheres to the surface of the crop using the potential difference between the fine mist and the crop.
- ozone-containing mist is generated by generating mist by the electrostatic atomization method.
- oxidatively-decomposable mist other than ozone or alkali-decomposable mist is used. You may spray.
- the effect of decomposing harmful substances such as pesticides on the surface of crops is enhanced.
- the effect of removing dirt and odor in the storage and decomposition The effect to do increases.
- the spray unit 123 in the present embodiment generates mist by an electrostatic atomization method.
- a spray unit that electrostatically loads a mist that is miniaturized using an ultrasonic element and a metal mesh may be used.
- the same effect can be obtained by using a spray unit that electrostatically loads the mist that has been refined by increasing the frequency of the ultrasonic element.
- ozone gas generated by discharge is dissolved in the sprayed mist.
- the same effect can be obtained if the stored water is ozone water or functional water with high reactivity.
- the water tank 122 holds a liquid for generating mist and does not always hold water.
- the holding unit that holds the stored water is the water storage tank 122, and the water storage tank 122 holds the stored water 124 that is defrost water.
- a moisture absorbent may be used as a holding part to extract and hold the moisture contained in the air in the vegetable compartment 114! / ⁇ ⁇ ⁇ .
- the hygroscopic agent for example, porous materials such as silica gel, zeolite and activated carbon can be used. In this way, if defrosted water can be used to secure the stored water without the need for the user to supply the stored water from the outside, the user-friendliness is improved without the need for external water replenishment. To do.
- FIG. 11 is a cross-sectional view of the refrigerator in the fourth embodiment of the present invention.
- 12 and 13 are a longitudinal sectional view and a front view of the vicinity of the mist spraying device of the refrigerator shown in FIG. 11, respectively.
- FIG. 14 is a view showing a longitudinal section and an amplitude waveform of the spray section of the mist spraying apparatus shown in FIG.
- FIG. 15 is a functional block diagram of the refrigerator shown in FIG.
- FIG. 16 is a control flowchart in the control unit shown in FIG.
- FIG. 18 is a graph showing the relationship between the pesticide removal effect of the mist spraying device shown in FIG. 12 and the water particle diameter of the mist.
- FIG. 19 is a graph showing the relationship between the pesticide removal effect and the amount of mist sprayed by the mist spraying device shown in FIG.
- This refrigerator differs from the refrigerator shown in FIG. 5 in that a mist spraying device 302 is provided on the partition plate 111A, and an ozone generator 323 is provided on the top surface of the vegetable compartment 114.
- the other basic configuration is the same as that of the refrigerator shown in FIG. In the vegetable room 114 Container 228 is installed.
- the partition plate 111A incorporates a mist spraying device 302 having a spraying portion 301 of an ultrasonic atomization system!
- Partition plate 111A is mainly composed of a heat insulating material such as polystyrene foam, and its wall thickness is about 30 mm. However, on the back of the supply unit 304, the wall thickness is 5 to 10 mm.
- the supply unit 304 holds the stored water and supplies the stored water to the spray unit 301.
- the supply unit 304 includes a water collecting plate 321, a heating unit 328, a blower unit 317, and a cover member 306.
- the water collecting plate 321 is installed inside the cabinet, and the heating unit 328 is disposed in contact with one surface of the water collecting plate 321.
- the heating unit 328 is, for example, a heater composed of nichrome wire.
- the air blower 317 is a box fan or the like, and is arranged inside the warehouse to send the air in the warehouse to the water collecting plate 321.
- the cover member 306 constitutes a circulation air passage 307.
- the cover member 306 includes a first circulation air passage opening (hereinafter referred to as an opening) 308 and a second circulation air passage opening (hereinafter referred to as an opening) related to the circulation air passage 307. 309 and is provided. Further, the water collection plate 321 is provided with a water collection plate temperature detection unit (hereinafter, detection unit) 327 for detecting the temperature of the surface of the water collection plate 321.
- detection unit water collection plate temperature detection unit
- the spray section 301 has a horn 310 and a piezoelectric element 311.
- the horn 310 is formed in a substantially conical shape by cutting or the like, and the spray tip 310 A of the horn 310 is opened at least in the vegetable compartment 114.
- a flange portion 312 is formed integrally with the horn 310 on the piezoelectric element 311 side.
- the horn 310 and the piezoelectric element 311 are fixedly bonded. Due to the shape of the horn 310, the vibration generated in the piezoelectric element 311 is amplified to a maximum amplitude at the spray tip end 310A.
- the spray part 301 is attached to a connection part 305 that is an attachment member on the refrigerator side via a flange part 312. Or it is directly attached to the refrigerator.
- the amplitude of the ultrasonic vibration is set to be a node of the amplitude at the flange portion 312. That is, when the piezoelectric element 311 is driven, each part shown in FIG. 14 vibrates.
- connection portion 305 By connecting the flange portion 312 that is a node portion of the propagating vibration in this way to the connection portion 305, it is possible to prevent the vibration when the ultrasonic waves are generated from being transmitted to the refrigerator main body. Therefore, noise caused by vibration of refrigerator parts and shelves in the cabinet is reduced. It is. That is, noise and vibration of the refrigerator provided with the mist spraying device 302 of the type that generates mist by vibration energy are suppressed.
- the horn 310 is made of a material having high thermal conductivity.
- it is made of a metal such as aluminum, titanium or stainless steel.
- aluminum is preferable to use as a main component.
- a material mainly composed of stainless steel In order to extend the life, it is preferable to use a material mainly composed of stainless steel.
- the dimensions of the horn 310 are set so that the amplitude of the ultrasonic vibration becomes the amplitude node at the flange portion 312 and the abdominal portion of the amplitude at the spray tip portion 310A which is the tip of the horn 310. It is.
- the dimension of the horn 310 is set so that the dimension between the flange portion 312 and the spray tip portion 310A is 1Z 4 wavelength of ultrasonic vibration. In this way, with the vibration node fixed to the refrigerator main body, the position of the 1Z4 wavelength of the frequency at which the force is desired is the abdomen of the amplitude.
- vibration energy loss can be significantly reduced and the power required for vibration can be reduced compared to the case where there are a plurality of abdominal portions between the flange portion 312 and the spray tip portion 310A.
- the horn 310 By designing the horn 310 in this way, low input and high output can be obtained, and the horn 310 can be downsized.
- the length of the horn 310 is determined by the particle diameter of the generated mist, the oscillation frequency of the piezoelectric element 311, and the material of the horn 310. For example, when the mist particle diameter is about 10 m, if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 270 kHz, the length of the horn 310 is about 6 mm. When the mist particle diameter is about 15 m, the length of the horn 310 is about 11 mm if the material of the horn 310 is aluminum and the oscillation frequency of the piezoelectric element 311 is about 146 kHz. A summary of these theoretical calculations is shown in Table 1. Describe.
- the refrigerator is equipped with a cooling device for cooling the inside.
- the cooling device includes the compressor 104, the condenser 105, the decompression device (not shown) such as an expansion valve and a cylindrical tube, the evaporator 102, and the like.
- isobutane which is a flammable refrigerant, has a low global warming potential from the viewpoint of global environmental conservation.
- the refrigerator shown in Fig. 11 the vegetable compartment 114 is adjusted to 4 ° C force 6 ° C by ON 'OFF operation such as cold air distribution and heating part, and generally the inside temperature detection part is installed. There are many things that do not have.
- the vegetable compartment 114 is humid due to the transpiration of food-powered moisture and the invasion of water vapor by opening and closing the door.
- the partition plate 111A is configured to be thinner than other portions.
- the control unit 314 grasps the temperature state of the surface of the water collection plate 321 by the detection unit 327 installed on the water collection plate 321. Then, the control unit 314 performs ONZOFF control or duty control of the air blowing unit 317 and the heating unit 328. As a result, the surface temperature of the water collecting plate 321 is adjusted to be equal to or lower than the dew point temperature, and moisture contained in the high-humidity air sent from the interior by the blower 317 is condensed on the water collecting plate 321.
- the vegetable room temperature detection unit (hereinafter referred to as detection unit) 325 is provided in the vegetable room 114.
- a vegetable room humidity detection unit (hereinafter referred to as detection unit) 326 may be provided.
- the dew point temperature can be accurately determined according to changes in the internal environment by a predetermined calculation. Even when ice or frost is generated on the surface of the water collecting plate 321, the control unit 314 can drive the heating unit 328 to raise the surface temperature of the water collecting plate 321 to the melting temperature, and thus generate water appropriately. be able to.
- the surface temperature of the water collecting plate 321 rises due to the influence of the air in the vegetable compartment 114, and decreases when the blower 317 is stopped. If the wall thickness of the partition plate 111 A on the back of the supply unit 304 exceeds 10 mm, the surface temperature of the water collection plate 321 will exceed the dew point temperature even when the air supply unit 317 is in operation and the heating unit 328 is OFF, and the amount of condensation Cannot be adjusted. On the other hand, when the wall thickness is less than 5 mm, the surface temperature of the water collecting plate 321 is too low, so that the heating unit 328 is always ON and the energy efficiency is poor.
- the thickness of the partition plate 111A on the back surface of the water collecting plate 321 is preferably 5 mm or more and 10 mm or less. As a result, the surface temperature of the water collecting plate 321 can be controlled, and the energy consumption of the heating unit 328 is minimized.
- Water droplets condensing on the surface of the water collecting plate 321 gradually grow, flow downward without using the power of a pump or the like due to their own weight, and collect in the water storage tank 313 in the vicinity of the spray unit 301.
- the water storage tank 313 is provided in the heat insulation box 110 and is a holding unit that holds a liquid.
- the collected condensed water is supplied to the tip of the horn 310 by the water supply unit 303.
- the water supplied to the tip of the horn 310 is sprayed into the vegetable compartment 114 as a mist having a small particle diameter by the vibration of the ultrasonic transducer 311.
- the horn 310 is a force that generates heat by vibration in the vicinity of the spray tip 310A. Since the horn 310 is a highly thermally conductive material, this heat is diffused throughout the horn 310.
- At least the spray tip 310A is provided in the vegetable compartment 114. For this reason, mist particles are sprayed directly on the vegetable compartment 114, where vegetables such as vegetables are stored. The That is, the distance between the spray tip 310A and the crop is short. This configuration prevents vaporization of mist particles and increases the flow velocity in a floating state, for example, compared to a case where mist is sprayed outside the vegetable compartment 114 and then fed into the vegetable compartment 114. This increases the rate of mist adhesion to the crop surface.
- the spray unit 301 uses a piezoelectric element 311 utilizing an electrostrictive phenomenon caused by electric energy.
- the spray unit 301 can make water droplets fine using vibration energy of high frequency. Therefore, it is possible to obtain a fine mist with a low voltage without requiring a high voltage when producing the fine mist. Therefore, safety associated with mist generation is increased and energy consumption is reduced.
- the water particles are not decomposed by electrolysis or the like, it is possible to make a mistake without changing the water components. Therefore, even if functional water is supplied to the spraying unit 301 from a water storage tank or the like instead of the supply unit 304, the type of atomizer that generates mist by vibration energy does not decompose water particles such as electrolysis.
- mistoy without changing the water composition.
- the device when the device is configured to mistoy the water component as it is by applying vibrational energy, some component is added compared to pure water, such as alkaline ionized water or negative ionized water. Even if functional water is used, it becomes possible to misto the components as they are, and any water according to the user's needs can be supplied as mist.
- the spray unit 301 is not limited to using the piezoelectric vibrator 311.
- a magnetostrictive vibrator using a magnetostriction phenomenon caused by magnetic energy may be used as the vibrator. Even in this case, the same effect as described above can be obtained.
- the spray unit 301 generates mist by ultrasonic vibration.
- the frequency of ultrasonic waves is generally in a frequency band in which noise caused by vibration cannot be heard by human ears as a steady sound. For example, by using a frequency of 20,000 hertz or more, even when applied to a refrigerator for home use, noise caused by vibration cannot be heard by the human ear as a steady sound. Therefore, a refrigerator having low noise, high quality V, and mist spraying device 302 can be obtained.
- control unit 314 is spray The unit 301, the heating unit 328, the compressor 104, the air blowing unit 317, and the ozone generator 323 are controlled.
- the heating unit 328 adjusts the amount of water supplied to the spray unit 301.
- the detection unit 325 detects the internal temperature as 5 ° C
- the detection unit 326 detects the internal humidity as 90%
- the detection unit 327 detects the surface temperature of the water collecting plate 321 as 4 ° C.
- the control unit 314 determines ONZOFF of the spray unit 301 and the operation of the heating unit 328. That is, the surface temperature of the water collecting plate 321 needs to be cooled below the dew point temperature. Therefore, for example, the control unit 314 turns off the heating unit 328 or reduces the input. In order to reduce the temperature of the cold air, the force for increasing the rotational speed of the compressor 104 or the rotational speed of the air blowing unit 317 is decreased. The control unit 314 operates the spray unit 301 only when the detection unit 330 detects that the door is closed. This prevents mist leakage to the outside when the door is opened.
- step 21 the detection unit 327 detects the surface temperature t ° C of the water collecting plate 327.
- the control unit 314 determines that the pesticide removal is to be activated when t ° C is within the predetermined t ° C and t ° C range, and the control is
- step 22 If t ° C is not in the t ° C and t ° C range, control returns to step 21
- step 22 the control unit 314 operates the spray unit 301 to spray mist into the vegetable compartment 114.
- step 23 the accumulated operation time T of the spraying part 301 is determined in advance.
- control unit 314 If it is equal to or greater than T, the control unit 314 operates the ozone generator 323 in step 24, and the control proceeds to step 25. If T is less than T, control unit 314 continues to eject at step 23.
- step 25 the accumulated operation time T of the spraying part 301 exceeds the predetermined T.
- control unit 314 stops the spray unit 301 in step 26 and ends the mist spraying. At the same time, the controller 314 also turns off the ozone generator 323 and the control proceeds to step 27. T force S
- control unit 314 continues to determine the spraying time in step 25.
- step 27 the stop time T of the spray section 301 must be greater than or equal to the predetermined T.
- control unit 314 returns T and T to the initial values in step 28 and returns to step 21 again.
- control unit 314 continues the stop time of the spray unit 301 in step 27.
- FIG. 17 is a longitudinal sectional view in the vicinity of the spraying part 301.
- a water storage tank 425B and a spray unit 301 are provided from the refrigerator door 400A side toward the interior partition inner surface to constitute a mist spraying device 302A.
- the mist spraying device 302A is fixed to a partition plate 111B constituting the top of the vegetable compartment 114.
- the bottom surface of the water storage tank 425B is inclined, and a water supply adjustment unit 444 is provided at the bottom of the back surface.
- the water storage tank 425B is installed on the door 400A side of the vegetable compartment 114, that is, on the front side, so that people can easily attach and detach it, and stores tap water and condensed water.
- various functional waters may be injected into the water storage tank 425B.
- Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins.
- the bottom surface of the water storage tank 425B is inclined toward the back of the refrigerator, and the injected water is devised to flow to the back.
- a water supply adjustment section 444 is provided on the bottom surface on the back side.
- the water supply adjustment unit 444 also has an open / close valve force, for example.
- the water supply adjustment unit 444 supplies water to the spray unit 301 only when it is open.
- the water storage tank 425B is provided on the door 400A side, and the spraying portion 301 is provided on the back side of the water storage tank 425B.
- Water tank 4 Since the bottom surface of 25B is inclined toward the spraying part 301, the water in the water tank 425B is used efficiently.
- an appropriate amount of water is supplied to the spray unit 301 by the water supply adjustment unit 444.
- the water storage tank 425B may be a detachable force fixed to the partition plate 111B. This facilitates the exchange, addition and cleaning of water and improves usability.
- FIG. 18 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the mist particle diameter.
- Embodiment 3 ten cherry tomatoes with about 3 ppm of malathion attached are used.
- the mist generated by the mist spraying device 302 is sprayed continuously for 12 hours. After treatment, the residual malathion concentration of cherry tomatoes is measured by GC, and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L.
- the particle diameter of the mist is determined by the frequency of the piezoelectric element 311 and the dimension of the horn 310.
- the particle size must be controlled to 20 m or less.
- mist with a particle size of 0.5 ⁇ m is more diffusive than mist with a particle size of 20 ⁇ m, the frequency of contact between the mist and agricultural chemicals on the vegetable surface increases, and the removal rate of agricultural chemicals is also high. It is thought to be higher.
- the mist particle size with a performance of 50% or more in the mist spraying apparatus that generates mist by the ultrasonic method is 20 m or less, and the pesticide removal rate is 70% or less.
- the mist particle size with the above performance is 0.5 ⁇ m or less.
- the mist particle size is made smaller than 0.5 m, the pesticide removal rate is considered to be further improved.
- the spraying part 301 water droplets are made fine by using high-frequency vibration energy. Therefore, in the ultrasonic atomizing spray unit 301, it is necessary to increase the vibration frequency in order to reduce the mist particle size to less than 0. The higher the vibration frequency, the greater the number of vibrations, and the longer the service life of the spraying part 301 that employs the current ultrasonic atomization method tends to be. Refrigerators have a long service life among household electrical appliances, and the average service life is about 10 years, so long-term durability is required. Therefore, when the mist is generated using the ultrasonic atomization method in the current technology, the lower limit value of the mist particle diameter is preferably set to 0.5 m.
- the mist particle diameter using the spray unit 301 of the ultrasonic atomization method is in the range of 0.5 / zm to 20 ⁇ m.
- the ultrasonic atomization method can ensure long-term reliability. If there is, the lower limit value of the mist particle diameter can be expanded to about 0.05 m of 1Z10.
- FIG. 19 is a diagram showing the relationship between the pesticide removal effect of the mist spraying device 302 and the amount of mist spraying.
- a mist with a particle size of 10 m is sprayed into a vegetable chamber 114 of 70 liters.
- the spraying time is 12 hours, similar to the experiment in Fig. 18.
- the spray amount is controlled by changing the voltage applied to the spray section 301.
- the spray amount can be adjusted by changing the opening area of the spray tip 310A.
- the removal effect of malathion increases as the amount of mist spray increases.
- the spraying amount In order to achieve a malathion removal rate of 50% or more, the spraying amount must be controlled to 0.001 g / h-L or more. On the other hand, if the spray amount exceeds 0.14 gZh'L, although there is a pesticide-removing effect, excess moisture will adhere to the vegetable surface, causing water rot and reducing the quality of the vegetable.
- the amount of mist sprayed using the spray section 301 of the ultrasonic atomization method is in the range of not less than 0.014 g / h-L and not more than 0.14 g / h′L.
- the spraying amount may be increased if water rot can be prevented by shaking the vegetables and removing excess water.
- the spray amount is preferably 0.5 gZh'L or less.
- the refrigerator as the storage having the cooling device according to the present embodiment has the vegetable compartment 114 as a storage compartment formed by insulating the heat insulation box 110.
- the refrigerator also includes a mist spraying device 302 including an ultrasonic atomizing spray unit 301 that sprays liquid mist.
- the air path 229 is used to convey the low temperature cold air to each storage room having a relatively low temperature.
- the water collecting plate 321 for supplying water to the spray part 301 is cooled by the heat conduction of the air passage 229 side force. By adjusting the temperature of the water collecting plate 321 below the dew point, moisture in the air is reliably generated, and water is supplied to the spray tip 310A of the horn 310 by the water supply unit 303 or the like.
- the spray unit 301 is an ultrasonic atomization system, if the supply of water is sufficient, the spray amount is sufficiently secured. Therefore, the amount of spray can be adjusted by ONZOFF operation. Furthermore, the operation time in actual use is shortened, and the lifetime reliability of components is improved. In addition, pesticides and wax adhering to the surface of agricultural products can be lifted and removed with a very small amount of water, saving water. [0136] Further, since the spray unit 301 is an ultrasonic atomization system, ozone is not generated when mist is generated, and only OH radicals are generated. This simplifies the component configuration and control details that do not require any special measures against ozone. If ozone is used, an ozone generator 323 should be provided separately as in this embodiment.
- the spray unit 301 can spray various functional water.
- Functional water is, for example, acidic water, alkaline water, or nutrient water containing vitamins.
- the mist efficiently enters the fine recesses on the surface of the crop. Therefore, harmful substances such as pesticides are removed to the smallest detail.
- ozone gas generated by discharge is dissolved in the sprayed mist, but the same effect can be obtained even if the stored water is ozone or functional water rich in reactivity.
- the spray unit 301 of the ultrasonic atomization method since the spray unit 301 of the ultrasonic atomization method is used, a high voltage is not required when atomizing the mist. Therefore, when a flammable refrigerant such as isobutane or propane is used as the refrigerant for the cooling device, safety is maintained even if the refrigerant leaks from the cooling device. There is no need to devise special measures. There is no need for special measures such as explosion protection. Therefore, applying the spray unit 301 of a type that generates mist by vibration energy to a refrigerator using a flammable refrigerant does not impair the safety of a household refrigerator.
- a flammable refrigerant such as isobutane or propane
- the spray unit 301 includes a horn 310 formed in a substantially conical shape and a piezoelectric element 311.
- the piezoelectric element 311 is bonded to and integrated with one end surface of the horn 310.
- the mist spraying device 302 including such an ultrasonic atomizing spray unit 301 is small in size and operates with a low input. Therefore, it can be placed in the vegetable compartment 114.
- the spray unit 301 since the heat generation amount of the mist spraying device 302 itself is suppressed, the temperature rise in the vegetable compartment 114 is suppressed. In addition, since abnormal heat generation in the event of water shortage is also suppressed, the spray unit 301 has a long life and improves reliability. Furthermore, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spraying part 301 has a long life.
- the spray unit 301 By providing the water supply unit 303, water is efficiently and stably supplied to the tip of the horn 310. Therefore, the spray unit 301 always sprays stably, and mist is sprayed in the vegetable compartment 114. In addition, since water is stably supplied to the tip of the horn 310, water shortage at the tip of the horn 310 is prevented, and the spray unit 301 has a long life and reliability is improved.
- the water supply unit 303 is provided in the vicinity of the supply unit 304. Therefore, water is supplied to the tip of the horn 310 by the water supply unit 303 as well as the supply unit 304 force. As a result, the vegetable compartment 114 is efficiently sprayed.
- the supply unit 304 and the water supply unit 303 are located in the vicinity, the water path from the supply unit 304 to the tip of the horn 310 becomes compact and simple, and the degree of freedom in design is improved.
- the supply unit 304 has a water collecting plate 321 that condenses moisture in the air in the vegetable compartment 114 in order to collect water. Condensed water generated by condensation is collected at the supply unit 30 and collected. The condensed water thus supplied is constantly and stably supplied to the tip of the horn 310 by the water supply unit 303. Therefore, mist is efficiently sprayed in the storage space.
- the horn 310 is made of a material having high thermal conductivity, heat generated at the tip of the horn 310 is diffused throughout the horn 310. Moreover, since the inside of a refrigerator is a low temperature atmosphere, the temperature rise of the spray part 301 is suppressed. As a result, the spray unit 301 has a long life and reliability is improved.
- the tip of the horn 310 is disposed in the vicinity of the vibration abdomen, and the flange portion 312 provided on the surface to which the piezoelectric element 311 is bonded is disposed in the vicinity of the vibration node. And the flange part 312 and the refrigerator main body are connected directly or indirectly. Therefore, the liquid replenished to the tip of the horn at the abdomen having a large vibration amplitude, that is, the tip of the horn 310 can be efficiently atomized. On the other hand, vibration transmission to the refrigerator connected directly or indirectly is reduced because the amplitude of the vibration node, that is, the flange 312 is small.
- the piezoelectric element 311 vibrates in a mode in which the length between the spray tip 310A of the horn 310 and the flange 312 is 1Z4 wavelength.
- the horn 310 can be downsized. It also improves efficiency because energy dispersion and attenuation are reduced.
- the installation restrictions of the small horn 310 provide a small degree of design freedom and increase the storage space. Specifically, the length of the horn 310 can be set to 1 mm to 20 mm. Thus, if the horn 310 is made small, the design freedom of the refrigerator can be obtained and the storage space becomes large.
- the horn 310 in the spray unit 301 has been described as having an approximately conical shape.
- the present invention is not limited to this.
- a similar effect can be obtained if the shape amplifies the amplitude of vibration at the tip.
- the piezo-electric element 311 side force can be tapered toward the front end, and the horn end can be formed into a substantially rectangular shape. In this configuration, the area over which the mist is sprayed is larger than the circular shape, so the spray range is expanded and diffusibility is improved.
- the mist spraying devices 120 and 302 in the third and fourth embodiments described above are used in combination.
- the effect of removing agricultural chemicals by such a combined mist spraying device the effect of keeping agricultural products stored in the vegetable compartment 114, and the antifouling effect of the wall in the vegetable compartment 114, the viewpoint power of the mist particle size and spray amount is also explain.
- FIG. 20 is a diagram showing the correlation between the mist particle size and the spray amount and the respective effects in the present embodiment.
- Figure 20 shows the range in which each effect appears when the 70 L vegetable room is maintained at an ambient temperature of 5 ° C, and the mist particle size and spray amount are varied by the electrostatic atomization method and the ultrasonic method. ing.
- the mist spraying devices 120 and 302 By adjusting the capabilities of the mist spraying devices 120 and 302 according to the third and fourth embodiments, a range where the appropriate values of the particle diameter and the spray amount of both of them overlap each other is covered. From FIG. 20, it can be seen that there is an appropriate range for the mist particle size and the spray amount according to Embodiments 3 and 4 and the respective effects, which are shifted from each other.
- the pores are maximally open and the particle size is equal to or smaller than the pore size in the state that the sprayed mist cannot physically enter the vegetable interior. .
- the pores are on the surface of the vegetables and regulate the water content.
- the moisture content recovery rate is high if the mist particle size is equal to or smaller than the cell gap width. That is, the mist actively invades the intercellular gap force, and the moisture content restoration effect of the vegetable is increased.
- the mist diameter becomes too small, the contact frequency between the mist and the pores decreases, and the resuscitation rate of vegetables decreases.
- the amount of mist sprayed needs to be equal to or greater than the amount by which the relative humidity in the vegetable compartment 114 can be kept in equilibrium with the humidity inside the vegetable.
- the spray amount is too large, the quality of the vegetables will deteriorate due to water rot.
- the amount of spray needs to be less than the amount that does not cause such a situation.
- the mist particle size is not more than the uneven width of vegetables, and the pesticidal effect is high when the particles are diffusible fine particles. If the particle size is too small, the contact frequency with the pesticide will be low and the removal rate will be low. On the other hand, like vegetable resuscitation, the frequency of contact between electrostatically loaded mist and vegetables is high, so the higher the proportion of electrostatically loaded mist, the smaller the spraying effect. In this case, it is not necessary to supply the mist to the inside of the vegetable as in the resuscitation of the vegetable. The supply of the mist is limited to the vegetable surface. Therefore, the amount of spray required is less than vegetable resuscitation.
- the antifouling effect in the refrigerator will be described. If mist water particles evenly adhere to the wall surface of the refrigerator, it is possible to prevent dirt from adhering directly to the wall surface of the refrigerator.
- the antifouling effect in the refrigerator cabinet means such an effect. In this way, when the dirt substance adheres to the wall surface in the warehouse via water particles, for example, it is possible to easily remove the dirt simply by wiping the wall surface in the warehouse, and cleaning the refrigerator is very easy. It becomes.
- fine particles having a particle diameter equal to or smaller than the uneven width of the internal greaves and having diffusibility have a high antifouling effect. Also visible as water droplets when mist adheres to the inner wall Condensation may occur at the particle size, and the food quality may deteriorate. For this reason, the particle diameter of the mist to be sprayed needs to be a particle diameter at which the mist adhering to the wall surface forms water droplets at an invisible level. Moreover, the spraying amount is larger than the spraying amount for vegetable resuscitation and pesticide removal. This is because in order to exert the antifouling effect, it is necessary to uniformly adhere water particles to the wall surface and to spray a large amount of mist.
- the mist When the mist is generated by the electrostatic atomization method, the number of radicals having a high ability to decompose acid and soot increases as the particle diameter decreases, as in the removal effect of agricultural chemicals. Therefore, it is considered that the ability of mist to decompose acid and soot increases, the frequency of contact with dirt increases, and the effect of decomposing adhering dirt increases. However, if the particle size is too small, the mist wall-arrival rate decreases and the antifouling effect is reduced.
- FIG. 21A is a diagram showing the relationship between the agrochemical removal effect and the water particle diameter of mist in the present embodiment.
- Embodiment 3 ten cherry tomatoes with about 3 ppm of malathion attached were used. After the mist generated by the mist sprayer is continuously sprayed for 24 hours, the residual malathion concentration of cherry tomatoes is measured by GC and the removal rate is calculated. The spray amount at this time is 0.03 gZh'L.
- the mist particle size in order to achieve a pesticide removal rate of 50% or more, the mist particle size must be 0.003 ⁇ m or more and 20 ⁇ m or less. Fine mist particles that have a mist particle size that is less than the width of the unevenness of crops and that are diffusible have a high pesticide removal effect. Therefore, the mist particle size is preferably 20 m or less. If the particle size becomes too small and less than 0.003 ⁇ m, the contact frequency with the pesticide will decrease and the removal rate will be lowered.
- FIG. 21B is a diagram showing the relationship between the pesticide removal effect and the amount of mist spray in the present embodiment.
- FIG. 21B is a diagram showing the pesticide removal effect according to Embodiment 5 of the present invention with respect to the amount of mist sprayed.
- a mist with a particle size of 0.5 m was placed in a vegetable chamber 114 of 70 liters. Spray.
- the spraying time is 12 hours as in the experiment of FIG. 21A.
- the removal effect of the pesticide malathion increases as the amount of mist spray increases.
- the spray amount must be controlled to 0.0007 g / h'L or more. This lower limit is the same as the value obtained when the mist is sprayed by the electrostatic atomization method. That is, the lower limit is determined by the electrostatic atomization method.
- the spray amount exceeds 0.14 gZh'L, although there is an effect of removing agricultural chemicals, excessive moisture adheres to the vegetable surface, causing water rot and reducing the quality of the vegetable.
- the spraying amount may be increased if water rot can be prevented by shaking the vegetables to remove excess moisture.
- the amount of spray is preferably 0.5 gZh'L or less.
- the upper limit is determined by the ultrasonic vibration method.
- FIG. 22 is a cross-sectional view of the refrigerator in the sixth embodiment of the present invention.
- FIG. 23 is a longitudinal sectional view of the vicinity of the mist spraying device of the refrigerator shown in FIG. FIG. 23 also serves as a block diagram of the control system of the mist spraying device, and does not show the positions of the voltage application unit 409 and the control unit 414.
- the refrigerator shown in FIG. 22 is different from the refrigerator shown in FIG. 5 in the configuration of the spray section 431 provided on the partition plate 111B on the top surface of the vegetable compartment 114.
- the other basic configuration is the same as that of the refrigerator shown in FIG.
- the mist spraying device 404 has an electrostatic atomizing spray unit 431.
- the outer part of the spray part 431 consists of a cylindrical holder 405!
- an application electrode 406 is installed in the holder 405.
- the periphery of the application electrode 406 is covered with a water retention material 407.
- the water retaining material 407 holds condensed water, and the application electrode 406 is in a water-containing state up to the spherical tip. That is, the water retention material 407 is a holding unit that holds water supplied to the application electrode 406 constituting the mist spraying device 404.
- a plate-like counter electrode 408 having an opening at the center is disposed in the opening inside the holder 405.
- the counter electrode 408 is attached so as to maintain a certain distance from the tip of the application electrode 406.
- the negative electrode side of the voltage application unit 409 for generating a high voltage is electrically connected to the application electrode 406, and the positive electrode side is electrically connected to the counter electrode 408. Connected.
- the spray unit 431 is provided with a temperature detection unit 412 for detecting the tip temperature of the application electrode 406.
- the control unit 414 receives a signal from the temperature detection unit 412, performs a predetermined calculation, and operates the components.
- a heating unit 413 for controlling the tip temperature of the application electrode 406 is provided on the back surface of the application electrode 406, a heating unit 413 for controlling the tip temperature of the application electrode 406 is provided.
- the partition plate 111B is mainly made of a heat insulating material such as polystyrene foam, and its thickness is about 3 Omm. On the back surface of the spray part 431, the thickness is 5 mm to 10 mm.
- the vegetable compartment 114 is adjusted to have a 4 ° C force of 6 ° C by the distribution of cold air from the evaporator 102, and generally in the cabinet. Does not have a temperature detector.
- the inside of the vegetable compartment 114 is highly humid due to transpiration from food and intrusion of water vapor by opening and closing the door.
- a switching room 113 and an ice making room are provided on the vegetable room 114.
- the temperature in these storages is lower than the temperature in the vegetable compartment 114.
- the thickness of the partition plate 111B on which the spray unit 431 is installed needs a cooling capacity for cooling the application electrode 406. Therefore, the wall thickness of the portion where the spray part 431 is provided is configured to be thinner than other portions.
- the tip temperature of the application electrode 406 is set to be equal to or lower than the dew point temperature, water vapor in the vicinity of the application electrode 406 is condensed on the application electrode 406, and water droplets are reliably generated.
- a control unit 414 is installed in the vicinity of the application electrode 406 and the temperature detection unit 412 grasps the state of the tip temperature. Then, the control unit 414 performs ONZOFF control or duty control on the heating unit 444 to adjust the tip temperature of the application electrode 406 below the dew point temperature. In this way, moisture contained in the humid air is condensed on the application electrode 406.
- the control unit 414 uses a predetermined calculation to strictly determine the dew point temperature according to changes in the internal environment. Can be determined.
- the control unit 414 causes the heating unit 444 to raise the temperature of the tip of the application electrode 406 to the melting temperature.
- water is generated appropriately by melting frost and ice.
- the application electrode 406 is covered with a water retention material 407. Therefore, the surface of the application electrode 406 is in a certain amount of water content.
- the application electrode 406 is set to the negative voltage side and the counter electrode 408 is set to the positive voltage side, and the voltage application unit 409 applies a high voltage (eg, 4.6 kV) between the electrodes. At this time, for example, corona discharge occurs between electrodes set at a distance of 3 mm.
- water on the applied electrode 406 is atomized from the tip and becomes a fine mist.
- This mist is charged and has a nano-level particle size of less than 1 ⁇ m that is not visible.
- Ozone and OH radicals are generated along with the generation of mist.
- the generated ozone is immediately mixed with the mist to form a low concentration ozone mist.
- mist is sprayed into the vegetable compartment 114.
- This mist is negatively charged.
- the crops stored in the vegetable compartment 114 usually have a positive charge. Therefore, mist is likely to gather on the crop surface.
- the mist also contains ozone and OH radicals. For this reason, mists decompose and decompose harmful substances such as pesticides and wax that adhere to the crop surface.
- the refrigerator that is a storage unit having a cooling device in the present embodiment has the vegetable compartment 114 that is a storage compartment formed by thermally insulating the heat insulation box 110.
- the refrigerator also includes a mist spraying device 404 including an electrostatic atomizing spray unit 431 that sprays liquid mist.
- the spray unit 431 has an application electrode 406 for applying a voltage to water, a counter electrode 408 disposed at a position facing the mark calo electrode 406, and a voltage application for applying a voltage between the mark calo electrode 406 and the counter electrode 408. Part 409.
- the application electrode 406 is cooled by heat conduction using low-temperature cold air from another storage room having a relatively low temperature as a cooling source. Further, the tip temperature of the application electrode 406 is adjusted to a dew point or lower by the heating unit 413. As a result, moisture in the air is surely condensed on the tip of the application electrode 406. That is, the application electrode 406 functions as a water collecting unit that extracts water from the air in the vegetable compartment 114.
- the amount of condensation is adjusted by finely adjusting the tip temperature of the application electrode 406 by the heating unit 413 provided on the back surface of the application electrode 406. Further, even if ice or frost is generated at the tip of the application electrode 406, the heating unit 413 melts them to form water droplets, and water is reliably supplied into the spray unit 431.
- the collected water is supplied to the tip of the application electrode 406 by the water retention unit 407. The water is sprayed as fine mist on the vegetable compartment 114 by the application electrode 406 and reliably adheres to the crop surface. At that time, harmful substances on the crop surface are removed by ozone and OH radicals generated simultaneously with the occurrence of mist. In addition, effects such as deodorization and antifouling in the vegetable compartment 114 are obtained.
- the sprayed mist is sprayed directly on the crops in the vegetable compartment 114. Therefore, the mist can be attached to the crop surface using the potential difference between the mist and the crop. Therefore, harmful substances such as agricultural chemicals are efficiently removed with a small amount of water.
- the application electrode 406 which is a water collection unit, is installed so as to be suspended from the upper part of the spray unit 431. Therefore, the dew condensation water captured by the application electrode 406 naturally falls due to gravity and travels toward the tip. This makes it possible to supply water to the mist spraying device 404 at low cost without using a water supply unit such as a pump or a firefly.
- a water retaining material 407 is disposed around the application electrode 406. As a result, the condensed water is held around the application electrode 406 and supplied to the application electrode 406 in a timely manner. Furthermore, since the water retaining material 407 is not vibrated, deterioration due to material shrinkage is prevented.
- Condensation water does not contain mineral components or impurities like tap water. Therefore, water retention material
- the ozone concentration in the vegetable compartment 114 is adjusted by the ONZOFF operation of the mist spraying device 404, which generates ozone when mist is generated.
- the ozone concentration in this manner By appropriately adjusting the ozone concentration in this manner, the deterioration of vegetables such as yellow potato caused by excessive ozone is prevented, and the sterilization and antibacterial action of the vegetable surface is enhanced.
- FIG. 24 is a longitudinal sectional view showing another configuration in the vicinity of the spraying part in the present embodiment.
- a partition plate 111B constituting the top of the vegetable compartment 114 is provided with a water storage tank 425 and a spraying part 431 in this order from the refrigerator door 400A side toward the interior partition interior. Reservoir tank 42 In 5, supply water 426 is stored. In the vicinity of the spraying part 431, there is a cover member 501 with a perforated hole such as V that food and people cannot touch. In this way, the mist spraying device 404A is configured.
- the water storage tank 425 is installed on the door 400A side of the vegetable compartment 114, that is, on the front side so that people can easily attach and detach it.
- supply water 426 to be supplied to the spray section 431 is stored.
- a water supply unit 441 and a water supply path 442 are provided to supply the supply water 426 to the spray unit 431.
- the water supply unit 441 is, for example, a gear pump, a piezoelectric pump, a capillary, or the like, and supplies water to the tip of the application electrode 406 of the spray unit 431 and the water retaining material 407 around it.
- the amount of water supply is substantially equal to the amount sprayed into the vegetable compartment 114.
- a control unit 414 and a voltage application unit 409 are provided as in FIG. The control unit 414 further controls the operation of the water supply unit 441.
- the control unit 414 first operates the water supply unit 441 to supply water to the tip of the application electrode 406 using the water supply path 442.
- the necessity of spraying into the vegetable compartment 114 is performed by the control unit 414 by a vegetable compartment humidity detection unit (not shown) that detects the humidity in the vegetable compartment 114.
- a vegetable compartment humidity detection unit not shown
- the voltage marking unit 409 applies a high voltage between the marking electrode 406 and the counter electrode 408. Fine mist generated thereby is sprayed into the vegetable compartment 114.
- the spray section 431 is embedded in a recess 420 provided in the partition plate 111B on the top surface section.
- the spray unit 431 is installed in the top of the vegetable room 114 and the cover member 501 is installed around it.
- the cover member 501 is arranged so as to be higher than the bottom surface 425A of the bottom surface portion 501A force water storage tank 425. The cover member 501 configured in this manner does not affect the movable operation of the vegetable container 228 that can be moved back and forth by the pull-out door 400A.
- vegetables that are agricultural products are stored. These fruits and vegetables are usually transcribed or preserved at the time of purchase return, especially when green rape leaves and fruits are preserved. It is often stored in a slightly deflated state due to transpiration. These fruits and vegetables are usually charged with a positive charge, and the fine mist with a negative charge sprayed easily collects on the vegetable surface. Therefore, the sprayed mist adheres to the surface of the fruits and vegetables at the same time that the inside of the vegetable compartment 114 is humidified. Mist adheres electrically to the surface of the crops thus charged and the inner wall of the warehouse. In addition, the mist penetrates into the fine recesses on the surface of the crops, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy.
- ozone and OH radicals contained in the mist react chemically with residual agricultural chemicals and wax. As a result, residual pesticides and waxes become more hydrophilic and are taken up in mist and decomposed and removed.
- the water storage tank 425 is provided on the door 400A side on the partition plate 111B located on the top surface of the vegetable compartment 114 of the refrigerator. That is, a water storage tank 425 is provided on the front side as viewed from the user.
- a water storage tank 425 is provided on the front side as viewed from the user.
- the spray section 431 is provided on the back side of the water storage tank 425, the user is prevented from touching the spray section 431, particularly the spray tip section 406A, and safety is improved.
- the lower end 431 A of the spraying part 431 is disposed on the back side of the water storage tank 425 and above the bottom surface 425 A, which is the lower end surface of the water storage tank 425. Therefore, the aesthetics in the vegetable compartment 1 14 where the spraying part 431 is difficult to see from the user are not impaired. Further, since the user touches the spray portion 431, the safety of the user is further increased. In addition, since food or human contact with the spraying part 431 is prevented, a decrease in reliability due to external force is prevented.
- the spraying part 431 is embedded in a recess 420 provided in the partition plate 111B. This reduces the internal volume The spray section 431 is provided in the vegetable compartment 114 without affecting food storage.
- cover member 501 that covers the spray part 431, the force of food and people coming into contact is prevented.
- the bottom surface portion 501A is disposed above the bottom surface 425A of the water storage tank 425. This prevents a decrease in the internal volume and improves the beauty and safety of the vegetable compartment 114 provided with the spraying part 431.
- the water storage tank 425 has been described as being removable, the present invention is not limited to this.
- the water storage tank 425 is a fixed type, and for example, tap water or stored water generated using moisture in the refrigerator may be automatically supplied.
- the spraying part 431 can be provided in the vegetable compartment 114 without impairing the appearance in the vegetable compartment 114.
- the user touches the spray part 431 more, safety to the user is enhanced.
- the foodstuff and the person's contact with the spray part 43 1 are prevented, the fall of the reliability by external force is prevented.
- the force using the spray unit 431 of the electrostatic atomization method is not limited to this. You may use the spray part of another systems, such as an ultrasonic atomization system. Even in this case, the convenience and safety of the refrigerator can be improved by making the arrangement relationship between the water storage tank 425 and the spray section the same as described above.
- the spray portion 431 is embedded in the recess 420 provided in the partition plate 111B, and the thickness of the partition plate 111B is thinner than the other portions. As a result, the tip of the application electrode 406 is cooled to facilitate dew condensation.
- a water storage tank 425 is provided and marked. When supplying water to the additional electrode 406, it is not necessary to cause condensation on the applying electrode 406. In that case, the temperature detection unit 412 and the heating unit 420 may not be provided.
- FIG. 25 is a front view of the vicinity of the vegetable compartment of the refrigerator in the seventh embodiment of the present invention.
- FIG. 26 is a longitudinal sectional view taken along line AA in the vicinity of the vegetable compartment of the refrigerator shown in FIG.
- a container 228A for storing vegetables and fruits is arranged in the vegetable compartment 114.
- a rail member 512 for holding the container 228A is provided on the outer wall of the refrigerator.
- the container 228A held by the rail member 512 moves back and forth as the door 400A opens and closes.
- a specific container 228B partitioned from the container 228 in a substantially separate section is arranged in the vegetable compartment 114.
- the lid 514 almost seals the specific container 228B only when the door 400A is closed.
- the lid 514 is made of a light-transmitting material and has a hole in a part thereof.
- the container 228A is omitted.
- the lid 514 is arranged so that the door 400A side is inside the specific container 228B and the back side of the interior is deeper than the specific container 228B.
- a detachable water storage tank 425C is provided on the door 400A side, that is, on the front side.
- a spray portion 431 is attached to the back side of the partition plate 11B.
- the basic configuration of the spray unit 431 of the electrostatic atomization method is the same as that of the sixth embodiment.
- a hole 517 that is slightly larger than the outer dimensions of the spray part 431 is provided. With this configuration, the movement of the lid 514 relative to the spray unit 431 is restricted.
- the lid 514 moves as the door 400A opens and closes. When the door 400A is closed, the lid 514 substantially seals the specific container 228B.
- the door 400A is opened, it is detached from the specific container 228B and held on the main body side. Therefore, when the door 400A is opened, the upper surface of the specific container 228B is opened.
- the container 228A is provided with a holding part 515 for holding the specific container 228B.
- the holding part 515 holds the protrusion 516 provided on the specific container 228B.
- the force that the specific container 228B is provided to the inner side of the interior.
- the holding portion 515 serves as a rail when the specific container 228B is pulled out. Function.
- Irradiation section 523 and diffusion plate 524 are provided on partition plate 111B.
- the irradiation unit 523 irradiates the specific container 228B with light of a specific wavelength, and affects the crops in the specific container 228B.
- the diffusion plate 524 uniformly irradiates the inside of the specific container 228B and covers the irradiation unit 523 that is a light source.
- the irradiation unit 523 is installed on the projection surface above the specific container 228B, and irradiates light through the transparent lid 514 into the specific container 228B.
- the operation and action of the vegetable room 114 of the refrigerator configured as described above will be described.
- the food stored in the vegetable compartment 11 4 has been diverse in recent years. For example, beverages that do not require high humidity, such as plastic bottles, are also stored, and their uses vary widely.
- vegetables leafy vegetables such as spinach prefer relatively low temperatures and high humidity, but shiitake mushrooms do not like high humidity. Also, potato and other grains prefer around 10 ° C.
- the specific container 228B is provided in the container 228A. This will provide a space environment according to the preserved vegetables. Further, the specific container 228B and the lid 514 form a substantially closed space.
- the specific container 228B has become highly humid due to the evaporation of 425C water from the water storage tank 425C, which makes it suitable for storing leafy vegetables such as spinach.
- At least the spray tip 406A of the spray unit 431 is provided in the upper part of the internal space of the highly humidified specific container 228B.
- the spray unit 431 and the water storage tank 425C constitute a mist spraying device that sprays mist by electrostatic atomization using water vapor in humid air.
- the spray unit 431 uses the cooling of the back surface to condense. Therefore, a recess 420A is provided in the part of the partition plate 111B to which the spray part 431 is attached. With such a configuration, the spraying unit 431 generates nanoscopic fine mist that has an electric charge and cannot be visually observed, and sprays it into the specific container 228B.
- the fine mist generated by the electrostatic atomization method generates a small amount of ozone and OH radicals at the same time as the charge. Therefore, in addition to the oxidizing power of ozone, it has the oxidizing power of OH radicals.
- the mist penetrates into the fine recesses on the surface of vegetables and fruits, leaving residual pesticides and wax. The harmful substances are lifted by the internal pressure energy. Then, it is oxidatively decomposed and removed by the acid decomposition action of ozone.
- the mist electrically enters even the fine recesses on the surface of the vegetable fruit, chemically reacts with the residual agricultural chemicals and wax, increases the hydrophilicity of the residual agricultural chemicals and wax, and is taken into the mist for decomposition and removal.
- the spray tip 406A is provided in the specific container 228B. Therefore, mist particles are sprayed directly on the specific container 228B in which the crops are stored. Thus, the distance between the spray tip 406A and the crop is short. Therefore, for example, vaporization of mist particles is prevented as compared with the case where the mist is sprayed outside the specific container 228B and the force is also fed into the specific container 228B. Also, since the mist flow rate in the floating state increases, the mist adherence rate to the crop surface increases.
- the spray tip 406A is provided in the specific container 228B, and the water storage tank 425C is provided in a section different from the section in which the spray section 431 is provided. That is, the water storage tank 425C is a supply unit that is provided in a section of the heat insulation box 110 that is different from the spray tip 406A and that holds water and supplies water vapor to the spray unit 431. In this configuration, the arrangement position of the water storage tank 425C is not affected by the arrangement position of the spray section 431. Therefore, the water storage tank 425C can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 425C and cleaning of the water storage tank 425C. In this way, user convenience is improved.
- a specific container 228B that is a section for spraying mist and a container 228A that does not perform mist spraying are arranged. This provides a space environment according to the preserved vegetables. Since the user can use the functions of the vegetable compartment 114 according to the purpose, the convenience of the refrigerator and the preservation of the crop are greatly improved.
- the irradiation unit 523 is provided outside the specific container 228B, which is sprayed with mist and becomes high humidity. As a result, the periphery of the irradiation unit 523 does not become high humidity, and a decrease in reliability due to condensation on the irradiation unit 523 is prevented.
- the irradiation unit 523 is provided on the upper side of the specific container 228B.
- the lid 514 positioned between the irradiation unit 523 and the specific container 228B is made of a light transmissive material.
- the irradiation unit 523 may be provided at a position other than this.
- the irradiation unit 523 may be provided on the side surface or the bottom surface of the specific container 228B.
- at least a part of the material of the specific container 228B located between the irradiation unit 523 and the space in the specific container 228B is formed of a light transmissive material.
- the types of irradiation unit 523 and the effects thereof will be described.
- the irradiation unit 523 emits blue light having a wavelength of 400 nm to 500 nm.
- the irradiation unit 523 is configured by a blue light emitting diode (LED).
- LED blue light emitting diode
- the crop vegetables in the specific container 228B irradiated with light through the lid 514 are promoted to be ecologically activated by light stimulation. Specifically, pores are opened to absorb mist and water droplets on the surface. This increases the water content and weight of the crop and keeps it fresh.
- an LED having a wavelength including an ultraviolet region is used for the irradiation unit 523.
- the sprayed mist is sterilized and the food surface is also sterilized. This increases food safety. Irradiation with such light inactivates the growth function of microorganisms attached to the wall surface of the specific container 228B and the food surface. As a result, the discoloration and rot of food produced by microorganisms and the occurrence of netting on the surface of stored products are delayed. That is, the hygiene inside the specific container 228B is maintained.
- a LED with a small calorific value is used as the light source, the temperature rise in the vegetable compartment 114 is prevented, and the food storage stability is stabilized.
- the specific container 228B it is possible to operate only the irradiation unit 523 without operating the spraying unit 431.
- some mushrooms and fish contain many precursors of vitamin D that are essential for bone and tooth growth.
- the molecules are excited and converted to vitamin D. Therefore, by providing a light source including ultraviolet light in the vegetable compartment 114, it is possible to increase the vitamin D content of a specific food in the vegetable compartment 114, for example, shirasuboshi, before storage.
- the food to be stored is not limited to agricultural crops, and the specific container 228B can be used as a space having a ripening function by storing the food for ripening as described above.
- the specific container 228B and the lid 514 for substantially sealing the space are provided in the vegetable compartment 114.
- a water storage tank 425C is provided on the front surface in the specific container 228B, and an electrostatic atomization type spraying portion 431 included in the mist spraying device is provided above the back surface.
- mist is sprayed on the crops stored in the specific container 228B, and harmful substances are lifted and decomposed.
- freshness can be improved over humidification only for crops that prefer a humid environment.
- the optimum storage environment can be provided in the vegetable compartment 114 depending on the type of vegetable.
- the irradiation unit 523 irradiates light with a specific wavelength selected, and the spray unit 431 sprays an appropriate amount of fine mist that can pass through the pores. This further expands the range of storage environments in the specific container 228B, and can provide a spatial environment according to the needs of the user and stored vegetables.
- the water storage tank 425C is provided in front of the specific container 228B, it is easy to use such as easy water supply, water exchange, addition, and cleaning.
- the spray unit 431 is installed on the upper surface of the back where it is difficult for humans to touch, so it is highly safe.
- the lid 514 covers the spraying part 431, so that it is not directly exposed to the cold air in the vegetable compartment 114, so that safety is further improved.
- the irradiation unit 523 is installed outside the specific container 228B, the possibility of poor wiring due to condensation is reduced, and the reliability is improved.
- the lid 514 is made of a light-transmitting material, light emitted from the irradiation unit 523 can pass through the container.
- the specific container 228B is substantially a sealed space. Therefore, it is safe even when a combustible refrigerant such as isobutane or propane is used as a cooling device refrigerant for cooling the storage room such as the vegetable compartment 114. That is, even if the refrigerant leaks, the flammable concentration is not reached because the inside of the specific container 228B is almost sealed. Further, if the spraying part 431 is arranged at the upper part, safety is not impaired particularly when a flammable refrigerant having a specific gravity higher than that of air is used. This is because even if the refrigerant leaks, the leaked isobutane stays in the lower part.
- a combustible refrigerant such as isobutane or propane is used as a cooling device refrigerant for cooling the storage room such as the vegetable compartment 114. That is, even if the refrigerant leaks, the flammable concentration is not reached because the inside of the specific container 228B is almost
- the irradiation unit 523 may emit ultraviolet light in addition to emitting blue light.
- the sprayed mist can be sterilized and the surface of the food can be sterilized, increasing food safety. be able to.
- the decomposition of harmful substances attached to agricultural products is promoted.
- the specific container 228B does not perform mist spraying in the vegetable compartment 114, and the force provided adjacent to the container 228A.
- the specific container 228B does not perform mist V, the container 228A. It may be provided in a container about half the height of the vegetable compartment 114.
- the specific container 228B located at the upper part can be slid backward, and the depth of the specific container 228B to be sprayed with mist is reduced. By avoiding the mist from accumulating at the bottom, the mist can reach every corner of the vegetable.
- the space above and below the vegetable compartment 114 can be effectively used with two containers, increasing the amount of storage in the vegetable compartment 114 and the use of the user. ! It becomes possible to improve selfishness.
- FIG. 27A is a side sectional view of the refrigerator in the eighth embodiment of the present invention.
- FIG. 27B is a partial front view showing an outline of the refrigerator shown in FIG. 27A.
- This refrigerator is different from the refrigerator shown in FIG. 5 of the third embodiment in that the refrigerator has a spray unit 76 shown in FIG. 1 of the first embodiment in place of the spray unit 123.
- the spray unit 76 is provided on the top of the vegetable compartment 114.
- a water storage tank 72A for supplying water to the spray section 76 is provided on the back side in the refrigerator compartment 112.
- an ice making chamber 227 is provided next to the switching chamber 113.
- Water supply path 73 supplies water from ice storage tank 119 to ice making room 227 and vegetable room 114.
- Other basic configurations are the same as the refrigerator shown in FIG.
- water is sent from the water tank 72A for ice making to the spray section 76 using the water supply path 73. Therefore, water can be supplied to the spray section 76 without providing a dedicated tank.
- the water storage tank 72A is provided in the refrigerator compartment 112 which is a separate storage room from the vegetable compartment 114, it does not affect the internal volume of the vegetable compartment 114 and does not affect the food storage capacity.
- a water storage tank 72A is provided, and the stored water supplied from the outside is supplied to the spray section 76.
- water contained in the air in the vegetable compartment 114 may be extracted by some method and supplied to the spray unit 76.
- the spray unit 76 may be disposed in the back of the vegetable compartment 114 and the supply unit 304 described in the fourth embodiment may be provided.
- the water supply path 73 to the spray section 76 also sucks water from the water storage tank 72A, and then branches to supply water to both the ice making room 227 and the vegetable room 114. Therefore, water can be supplied to both chambers with a simple configuration with a small number of parts.
- independent water supply paths may be provided for the ice making room 227 and the vegetable room 114, respectively. In that case, it becomes possible to replenish water at any time as needed. For example, water can be supplied arbitrarily even when both rooms require water supply simultaneously.
- the water supply path 73 can be configured on the back side of the refrigerator even when the water storage tank 72A is also used for ice making. .
- the water supply path 73 is short and can be made a simple vertical path. Because of this simple configuration, the water supply path 73 is highly hygienic as soon as it is cleaned.
- the spray unit 76 on the back side of the top of the vegetable compartment 114, contact between the spray unit 76 and the food stored in the cabinet is prevented. Therefore, the adhesion of the spray tip is prevented and the spraying capability of the spray tip is extended. In addition, since the user cannot easily touch it, the safety to the user is improved.
- FIG. 28 and 29 are a side sectional view and a front sectional view of the vicinity of the vegetable compartment of the refrigerator in the ninth embodiment of the present invention.
- 30 is a cross-sectional view of the main part showing the AA cross section in FIG. 29, and
- FIG. 31 is a cross-sectional view of the main part showing the B-B cross section.
- Figure 32 shows the mistakes made in this embodiment. It is a graph which shows the particle diameter distribution ratio of To.
- a vegetable room 114 and storage rooms 619 and 620 are provided in the heat insulating box 617 of the refrigerator.
- the front opening of the vegetable compartment 114 is blocked by a door 400A so that there is no inflow of outside air.
- a circulation duct 624 is provided in the back and bottom of the vegetable compartment 114.
- a circulation air passage 625 is formed between the circulation duct 6 24 and the heat insulating box 617.
- a spray portion 626 for spraying mist is provided in a portion corresponding to the back of the vegetable compartment 114 in the circulation air passage 625.
- a diffusion unit 627 is disposed above the spray unit 626.
- the spray unit 626 is, for example, any spray unit disclosed in the preceding embodiment. There may be a general sprayer.
- the diffusion unit 627 is a blower fan, for example.
- a plurality of discharge ports 628 are provided at the upper part of the vertical surface of the circulation duct 624.
- a plurality of suction ports 629 are provided on the bottom surface.
- Circulation air passage 625, circulation duct 624 constituting circulation air passage 625, discharge port 628 and suction port 629 provided in circulation duct 624, and diffusion portion 627 constitute mist circulation portion 630. Speak.
- the selection unit 631 for selecting the particle diameter of the mist is composed of a diffusion unit 627 and a spray unit 626. The selection unit 631 is also a mist spraying device.
- a drain 632 for discharging excess water from the circulation air passage 625 to the outside of the heat insulation box 617 is provided below the spray unit 626.
- Temperature sensors 633 and 634 are provided at the top of the vegetable compartment 114 and the bottom of the circulation duct 624, respectively.
- a heater 638 At the bottom of the circulation duct 624 is a heater 638 that heats the lower part of the vegetable compartment 1 14!
- the door 400A is provided with plate-like slide rails 635 extending into the vegetable compartment 114 in two pairs on the left and right sides, and a food storage container (hereinafter referred to as a container) 636 is placed thereon. With the slide rail 635, the door 400A is pulled out and opened in the horizontal direction.
- the discharge port 628 is positioned higher than the outer edge of the container 636 so that the mist always enters the container 636.
- a plurality of ventilation holes 637 are provided on the bottom surface of the container 636.
- the spraying unit 626 for example, water sprayed by atomizing water with ultrasonic waves may be used.
- the particle size of the sprayed mist is distributed as shown in FIG.
- FIG. 32 for example, when it is desired to obtain an effect, water particles having a predetermined particle diameter X or less corresponding to the effect can be taken out and sprayed by diffusion. That is, for example, in order to remove harmful substances on the surface of agricultural products stored in the vegetable compartment 114, as described in Embodiment 5, a mist having a particle size of 0.003 ⁇ m to 20 ⁇ m is used. Select it selectively.
- the desired particle size X can be freely set and can be adjusted by the operating degree of the spraying part 626, the operating degree of the diffusing part 627, and the distance between the spraying part 626 and the diffusing part 627.
- This operating degree refers to, for example, the vibration frequency when an ultrasonic vibration type spraying device is used for the spray unit 626 and the fan rotation speed when a blower fan is used for the diffusion unit 627.
- the mist exceeding the particle size X that has dropped down is discharged from the drain 632 to the outside of the vegetable compartment 114.
- the mist sprayed in the vegetable compartment 114 pours from above the container 636, that is, from above the stored crop.
- the sprayed mist falls downward in the gap between the container 636 and the crop, or the gap between the crop and the crop.
- the distance between the end portions of the plurality of discharge ports 628 is set to a size approximately equal to the lateral width of the container 636. For this reason, the distribution variation of the mist concentration in the lateral direction is suppressed.
- a plurality of vent holes 637 are provided on the bottom surface of the container 636. The mist in the container 636 passes from the air outlet 637 to the bottom of the vegetable compartment 114.
- the water in which the mist is agglomerated does not stay in the container 636, and no water accumulates at the bottom.
- the force may be provided on the side wall surface of the container 636 as well as the force bottom surface provided with the vent 637 on the bottom surface.
- the mist that has passed through the ventilation port 637 returns to the circulation air passage 625 from the suction port 629, and a part thereof is sprayed again into the vegetable compartment 114 by the diffusion unit 627. Some of the water droplets are discharged from the drain 632 to the outside of the vegetable compartment 114. In order to perform this drainage efficiently, it is preferable that the lower part of the circulation air passage 625 is inclined toward the drain 632 as shown in FIG.
- the suction port 629 and the ventilation port 637 are provided at substantially the same position and communicated with each other.
- the operating degree of the diffusion part 627 is adjusted, and the positions and areas of the discharge port 628, the vent 637, and the suction port 629 are adjusted. It is effective to make adjustments.
- the degree of decrease in humidity is moderate, and it is safe to stop spraying mist for a certain period of time.
- the operation of the spray unit 626 and the operation of the diffusion unit 627 are stopped.
- the heater 638 provided in the circulation duct 624 is energized to heat the lower part of the vegetable compartment 114. Heating control of the heater 638 is controlled so that the temperature difference between the temperature sensor 633 provided on the top surface of the vegetable compartment 114 and the temperature sensor 634 provided at the bottom of the circulation duct 624 becomes a certain value.
- the heater 638 may be a linear heater or a sheet heater as long as the heater generates heat substantially uniformly over a wide range. Further, the method of providing the temperature difference is not limited to using the heater 638.
- the refrigerator according to the present embodiment includes the heat insulating box 617, the fog part 626, and the diffusion part 627.
- the heat insulation box 617 has storage compartments 619 and 620 and a vegetable compartment 114 which are insulated.
- the spraying unit 626 is provided in the vegetable compartment 114 and sprays mist.
- the diffusion unit 627 diffuses the sprayed mist.
- the spray unit 626 and the diffusion unit 627 constitute a mist spray device.
- the sprayed mist is diffused and sprayed into the vegetable compartment 114 by the diffusion unit 627, so that the mist concentration in the vegetable compartment 114 is made uniform. This efficiently supplies mist around the crops. This minimizes the amount of mist sprayed. Therefore, dew condensation can be prevented and harmful substances can be removed from crops at the same time.
- a mist circulation section 630 is provided in the vegetable compartment 114. Thereby, mist is further supplied to every corner in the vegetable compartment 114, and the spray amount of mist is reduced. Further, the mist circulation section 630 includes a circulation air passage 625, a circulation duct 624 constituting the circulation air passage 625, a discharge port 628 and a suction port 629 provided in the circulation duct 624, and a diffusion portion 627. . Therefore, adjustment of the amount of mist circulation and distribution becomes easy, and the amount of mist sprayed is further reduced.
- the discharge port 628 is provided at a position higher than the crops stored in the vegetable compartment 114.
- the suction port 629 is preferably provided below the crops stored in the vegetable compartment 114. This ensures that the mist is supplied to the bottom of the container 228C.
- the selection unit 631 selects a mist having a particle diameter equal to or smaller than a certain particle size from the mist sprayed by the spray unit 626. Thereby, the minute mist is selectively sprayed. Therefore, the mist stays in the vegetable room 1 14 for a long time and is dispersed and supplied to the crops reliably.
- the selection unit 631 is configured by providing a spray unit 626 below the diffusion unit 627. As a result, light particles having a certain particle diameter or less are selectively taken out of the sprayed mist and sprayed into the vegetable compartment 114.
- a temperature difference is provided between the upper part and the lower part of vegetable room 114.
- the natural convection of the air in the vegetable compartment 114 is promoted, and the sprayed mist easily diffuses in the vegetable compartment 114.
- the spraying part 626 and the diffusion part 627 are temporarily Stopping is possible, improving the reliability of the component parts.
- FIG. 33 is a side sectional view of the vegetable compartment of the refrigerator in the tenth embodiment of the present invention.
- Fig. 34 is a side sectional view of the vegetable compartment, and
- Fig. 35 is an enlarged view of the main part of the mist spraying device.
- FIG. 36 is a diagram showing the pesticide removal performance of ozone water mist in the refrigerator shown in FIG.
- This refrigerator is different from the refrigerator shown in FIG. 5 of Embodiment 3 in that a mist spraying device 21 is provided on the upper rear surface of the vegetable compartment 114.
- the other basic configuration is the same as that of the refrigerator shown in FIG.
- the mist spraying device 21 is a water storage tank 22 for storing ozone water, a spray nozzle (hereinafter referred to as nozzle) 23 for spraying ozone water by an ejector method, and a supply unit for supplying liquid to the water storage tank.
- nozzle a spray nozzle
- the nozzle 23 constitutes the spray tip.
- the water storage tank 22 is provided in the heat insulating box 110 and is a holding unit that holds water as a liquid.
- An ozone water supply port 24 is provided in the upper part of the water storage tank 22.
- An ozone generator 25 that generates ozone by a high voltage method is provided in the vicinity of the vegetable compartment 114 and is connected to the ozone water path 27.
- the ozone water path 27 is provided with a water supply path 28 piped from a water storage tank 72.
- an annular electrode 29 for applying a high voltage and a power source 30 are provided near the tip of the nozzle 23.
- the nozzle 23, the electrode 29, and the power source 30 constitute a spray portion.
- the water storage tank 72 is provided in the refrigerator compartment 112 which is a compartment different from the vegetable compartment 114 which is a compartment provided with the spray tip of the heat insulating box 110.
- ozone gas is generated by the ozone generator 25.
- the water supplied from the water storage tank 72 via the water supply path 28 and the generated ozone gas are mixed to form ozone water.
- This ozone water is supplied and stored in the water storage tank 22 from the ozone water supply port 24 via the ozone water path 27.
- the ozone water in the water storage tank 22 is sprayed as a mist from the nozzle 23 into the vegetable compartment 114.
- a high voltage is applied from the power source 30 to the annular electrode 29 provided near the tip of the nozzle 23.
- the ozone water mist sprayed from the nozzle 23 is electrostatically added.
- Figure 36 shows the removal effect of ozone water mist on tomato-attached pesticides in this configuration.
- the experiment is performed by the following method. Adhering malathion to a concentration of 3-5ppm Store the cherry tomatoes in the vegetable compartment 114. At that time, ozone water mist is sprayed for 12 hours by intermittent spraying for 10 seconds at intervals of 20 minutes. The concentration of malathion remaining on the cherry tomato after such spraying is measured by gas chromatography, and the removal rate is calculated. For comparison, the concentration of malathion is also measured for cherry tomatoes stored in a vegetable room without a mist sprayer.
- ozone water generated by mixing ozone and water in the vicinity of the vegetable compartment 114 is electrostatically introduced into the vegetable compartment 114 by the mist spraying device 21. Spray the added mist.
- the sprayed fine mist uniformly adheres to the wall surface of the vegetable compartment 114 and the surface of the vegetable or fruit, and the mist enters the fine holes on the wall surface, the vegetable or fruit surface.
- dirt and harmful substances inside the fine holes are lifted, so that the effect of removing dirt and harmful substances is enhanced.
- it enhances the acid and sour decomposition effect of harmful substances on the surface of vegetables and improves the moisture retention of vegetables.
- the water storage tank 72 is provided in the refrigerator compartment 112, which is a separate compartment from the vegetable compartment 114, which is the compartment provided with the spray section. In this configuration, the arrangement of the water storage tank 72 is not affected by the arrangement of the spray section. Therefore, the water storage tank 72 can be provided at an arbitrary position that facilitates replenishment of water into the water storage tank 72 and cleaning of the water storage tank 72. In this way, the use and convenience of the user are improved. The same applies to the water storage tank 72A of the eighth embodiment.
- ozone water is generated by mixing water and ozone in the ozone water path 27.
- an ozone generator may be provided in the vicinity of the mist spraying device 21 to generate ozone, which may be mixed with water in the nozzle 23 and sprayed as ozone water mist.
- the ozone generator 25 may be provided in the water tank 22.
- FIG. 37 is an enlarged view of a main part of another mist spraying apparatus according to Embodiment 10 of the present invention. High voltage method The ozone generator 25 that generates zon is provided in a portion of the water tank 22. The rest of the configuration is the same as in Figs.
- the ozone generator 25 that generates ozone by the discharge method is immersed in the stored water in the water tank 22. This dissociates dissolved oxygen in the stored water in the water tank 22, generating ozone and OH radicals. Since the raw material oxygen is dissolved in water, the amount of ozone generated is much less than in air discharge, so the generated ozone is dissolved in the stored water. In this way, it does not require special materials, and it generates ozone water that has a simple structure, is safe for the human body and does not smell like ozone, and contains low-concentration ozone, stronger acidity than ozone, and OH radicals. Can be sprayed.
- FIG. 38 is an enlarged view of a main part of another mist spraying device for a refrigerator according to Embodiment 10 of the present invention.
- the mist spraying device 21 includes a water storage tank 22, a stored water supply unit 40, a capillary supply structure 42, and an electrode 43.
- Reservoir 22 has functional water combined with ozone water and acid water! /! Stores water.
- the stored water supply unit 40 supplies the stored water to the water tank 22.
- One end of the capillary supply structure 42 is located in the water reservoir 22, and the other end is formed as a spray tip 41 in the vegetable compartment 114.
- the electrode 43 is connected to the water tank 22 and applies a high voltage to the water stored in the water tank 22.
- mist spraying device 21 configured as described above will be described below.
- functional water or water is supplied to the water storage tank 22 from the storage water supply unit 40 and stored. It is.
- a high voltage is applied to the electrode 43 in the water storage tank 22
- a plurality of liquid yarns are drawn from the spray tip 41 by the electric field that exists between the spray tip 41 and its surroundings. Further, it is dispersed in charged droplets to become mist and sprayed into the vegetable compartment 114.
- water is supplied from the water storage tank 72.
- the drain water in the refrigerator is used and the drain water is supplied into the water tank,
- the storage of the present invention has a disassembling part in addition to the box and the mist spraying device.
- the mist spraying device generates mist and raises harmful substances such as residual agricultural chemicals attached to the surface of vegetables stored in the storage room inside the box.
- the decomposition unit decomposes the toxic substances that have risen.
- the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and the pesticides and harmful substances remaining in the recesses are physically lifted by a small amount of water.
- the decomposition part oxidizes and decomposes harmful substances such as agricultural chemicals that have been lifted, which improves food safety.
- the storage of the present invention has a box, a mist spraying device, and a decomposition unit, and the mist spraying device sprays an acidolytic mist.
- This acid-decomposable mist decomposes harmful substances such as residual agricultural chemicals attached to the vegetable surface.
- the decomposition unit decomposes the decomposition products generated in this way and harmful substances such as residual agricultural chemicals that are unreacted with the oxidative degradable mist. As a result, decomposition products and unreacted harmful substances can be made harmless, which improves safety.
- the decomposition unit in the storage of the present invention irradiates the crops in the storage with ultraviolet rays.
- harmful substances such as residual agricultural chemicals can be made harmless without adversely affecting the vegetables.
- the disassembly unit is configured with a simple configuration. Therefore, the number of components can be reduced, and the disassembly effect can be realized in a small space.
- the decomposition part in the storage of the present invention irradiates ultraviolet rays having a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative decomposition rate is improved.
- the storage of the present invention further includes a control unit, and the control unit operates the disassembling unit after the mist spraying device operates.
- the energy is used only for harmful substances such as agricultural chemicals and other unreacted substances from which the sprayed mist has peeled off. Therefore, the decomposition efficiency is improved.
- the mist spraying device generates an acid-decomposable mist
- the decomposition part decomposes unreacted materials that cannot be completely decomposed by the oxidative-decomposable mist.
- the efficiency of acidification decomposition as a storage is improved.
- the storage of the present invention further includes a door that covers the opening of the storage chamber, a detection unit that detects opening and closing of the door, and a control unit.
- the control unit stops the operation of the disassembly unit when the detection unit detects the opening of the door. This prevents people from seeing direct UV irradiation when the door is opened, improving safety.
- the storage of the present invention further includes a switch for operating the disassembly unit.
- the disassembly unit can be operated only when it is recognized that a person has operated, thus improving safety.
- a light shielding plate is provided around the disassembling portion. This will only irradiate the crops in the storage room where people do not see them directly. Therefore, safety is improved.
- FIG. 39 is a side sectional view of the refrigerator in the eleventh embodiment of the present invention.
- FIG. 40 is a block diagram of a control system in the refrigerator shown in FIG.
- the refrigerator shown in Fig. 39 is different from the refrigerator shown in Fig. 5 in Embodiment 3 in that a decomposition unit 121 is provided together with a mist spraying device 120 on the upper top surface of the vegetable compartment 114, and the wall surface is It is resistant to UV degradation and has material strength. Resistant to UV degradation, the material is stainless steel or a resin material resistant to UV degradation. Resolution 121 has a peak wavelength of 250 It is an ultraviolet lamp that irradiates ultraviolet rays near nm. Further, as shown in FIG. 40, a control unit 106 for controlling the operation of the mist spraying device 120 and the decomposition unit 121 is provided. Since other configurations are the same as those shown in FIGS. 5 to 7, detailed description thereof is omitted.
- mist spraying device 120 and the disassembling unit 121 of the refrigerator configured as described above will be described.
- water is stored in the water tank 122.
- the stored water 124 at this time is defrost water.
- the power supply 128 applies a negative high voltage to the cathode 134 in the water tank 122, a plurality of liquid yarns are drawn from the spray tip 132 by the electric field that exists between the spray tip 132 and the anode 135. Furthermore, it is dispersed in charged droplets to become mist. This mist is sent into the vegetable compartment 114 by the blower 129.
- mist is electrically attached to the surface of vegetables and fruits that are positively charged in the vegetable compartment 114. It penetrates into the fine recesses on the surface of vegetables and fruits, and toxic substances such as residual agricultural chemicals and wax are lifted by the internal pressure energy of the fine mist.
- the ultraviolet rays emitted from the decomposition unit 121 decompose and remove harmful substances by the decomposition action.
- water molecules in the mist are radicalized to generate OH radicals. Therefore, in addition to the acidity of ozone generated by discharge, the acidity of OH radicals enhances the decomposition performance of harmful substances such as agricultural chemicals.
- Fig. 41 is a diagram comparing the pesticide removal performance in the refrigerator shown in Fig. 39 with conventional immersion specifications and water washing.
- 10 cherry tomatoes with about 3 ppm of malathion were used and removed according to each specification.
- the removal rate is calculated by measuring the residual malathion concentration after treatment by gas chromatography (GC).
- treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
- treatment B soak 10 cherry tomatoes in water containing lppm ozone for 1 hour.
- This process corresponds to a process using a general food washing apparatus.
- 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours using a mist spraying device 120.
- treatment E 10 cherry tomatoes are subjected to a mist spray treatment for 12 hours, and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 by the decomposition unit 121 for 1 hour.
- the ozone gas concentration in process C and process E is approximately 0.03 ppm.
- the removal rate in treatment A is 20%, which is roughly equivalent to that of water washing at home. It can be seen that 80% of residual pesticides are not removed and are consumed by the human body. Treatment B also removes 55% of the pesticide residue.
- the removal rate of treatment C was 50%, indicating that the removal efficiency of pesticide was almost the same as treatment B.
- the removal rate of treatment E is 70%. This is thought to be because the attached pesticides were lifted by the physical action of the ultrafine mist and decomposed by ultraviolet rays. From the above results, the refrigerator having the mist spraying device 120 and the decomposition unit 121 in the present embodiment has a pesticide removal performance higher than that of a dedicated machine for food washing.
- Fig. 42 compares the amount of residual malathion in water washed with water after pesticide removal using the mist spraying device 120 of the refrigerator shown in Fig. 39 and the amount of malathion in water after washing with pesticide under conventional immersion specifications.
- treatment A place the above 10 cherry tomatoes in a bowl and wash with running water for about 10 seconds.
- treatment B ' 10 cherry tomatoes are soaked in water containing lppm ozone for 1 hour. After that, wash it in running water for about 10 seconds with running water.
- This process corresponds to a process using a general food washing apparatus.
- process C ' 10 cherry tomatoes are subjected to mist spraying for 12 hours using mist spraying device 120. After that, wash it in running water for about 10 seconds with running water.
- treatment E 10 cherry tomatoes are subjected to mist spraying for 12 hours and then irradiated with ultraviolet light having a peak wavelength of 250 nm and 1600 WZcm 2 for 1 hour by the decomposition unit 121. Then, wash in running water for about 10 seconds with running water.
- the ozone gas concentration in process C 'and process E' is about 0.03 ppm.
- the amount of malathion in tap water in treatment A is 100% of the amount of malathion removed. That is, malathion is not decomposed by tap water washing.
- the amount of malathion in tap water in treatment B is about 20% of the amount of malathion removed.
- the amount of malathion in tap water in treatment C ' was 20% of the amount of malathion removed.
- the mist spraying device 120 and the dedicated device have equivalent decomposition performance.
- the amount of malathion in tap water is below the detection limit even though the removal rate is 70%. This is thought to be due to the fact that malathion removed by ultraviolet rays is almost 100% decomposed.
- the refrigerator having the mist spraying device 120 and the decomposition unit 121 can remove agricultural chemicals such as vegetables and has the ability to decompose the removed agricultural chemicals.
- the refrigerator shown in FIG. 39 includes the mist spraying device 120 and the disassembling unit 121.
- the mist spraying device 120 has a water storage tank 122 and a spraying section 123 that sprays the stored water 124.
- the refrigerator according to this embodiment has such a simple structure and functions to remove and decompose harmful substances such as agricultural chemicals. Therefore, consumers can easily remove harmful substances such as agricultural chemicals by simply storing vegetables and fruits in the refrigerator.
- ultrafine mist is sprayed into vegetable compartment 114.
- the sprayed mist enters the fine recesses on the surface of vegetables and fruits, and removes harmful substances such as agricultural chemicals remaining in the recesses by physical action.
- This harmful substance is decomposed by ultraviolet rays. That is, harmful substances such as agricultural chemicals can be removed and decomposed with a small amount of water.
- the force using the spray unit 123 of the electrostatic atomization method is not limited to this.
- an ultrasonic element is used for the spraying part, a large amount of spraying can be generated as compared with the electrostatic atomization method. Therefore, it is particularly effective when the spray amount needs to be increased.
- harmful substances such as agricultural chemicals can be removed and decomposed according to the characteristics of each device, as long as it is possible to generate ultrafine mist as described above.
- defrosted water is stored in water storage tank 122, and reserved water 124 is secured without the user supplying the stored water from the outside.
- water may be supplied from the outside using a water storage tank or the like. With such a configuration, maintenance of the water storage tank is easy and a large amount of mist can be sprayed.
- the holding unit for holding the stored water 124 is not limited to using the water storage tank 122.
- the moisture contained in the air in the vegetable compartment 114 may be extracted and retained using a moisture absorbent (eg, a porous material such as silica gel, zeolite, activated carbon, etc.) as a water retention device.
- a moisture absorbent eg, a porous material such as silica gel, zeolite, activated carbon, etc.
- FIG. 43 is a side sectional view of another refrigerator according to the present embodiment.
- FIG. 44 is a block diagram of a control system in the refrigerator shown in FIG.
- the refrigerator shown in FIG. 43 includes a spray unit 74 including an ultrasonic element 80, a water storage tank 72 that supplies water to the spray unit 74 via a water supply path 73, and a disassembly unit 200.
- the configuration of the spray section 74 is the same as that in FIGS. 2 and 3 in the first embodiment.
- the spray unit 74, the water supply path 73, and the water storage tank 72 constitute a mist spraying device 61.
- a control unit 107 that controls the operation of the mist spraying device 61 and the decomposition unit 200 is provided.
- the rest of the configuration is the same as the configuration in FIG. The following description will be given with reference to FIGS.
- the spray section 74 and the decomposition section 200 are provided on the top top of the vegetable compartment 114. Disassembly part
- Reference numeral 200 denotes an ultraviolet LED that emits ultraviolet light having a peak wavelength of around 380 nm.
- the stored water 84 is atomized by the ultrasonic element 80 which is the spray unit 74.
- the high-speed expansion of the microbubbles generated by the ultrasonic element 80 and the compression destruction phenomenon decompose water molecules, and an acid-decomposable mist containing OH radicals is formed.
- the acid-decomposable mist only a fine mist having a particle size equal to or smaller than a predetermined particle diameter is sprayed from the metal mesh 81 by an electric field between the metal mesh 81 and the metal plate 82. In this way, the spray section 7 4 is filled with mist having a predetermined particle diameter or less.
- the fine mist is sprayed into the vegetable compartment 114 by the blower 77.
- the sprayed fine mist adheres to the surface of vegetables and fruits in the vegetable compartment 114 and oxidizes and decomposes harmful substances such as agricultural chemicals attached to the surface of vegetables.
- the control unit 107 energizes the ultrasonic element 80 and the power supply 83 of the mist spraying unit 61 and then energizes the decomposition unit 200 to irradiate ultraviolet rays.
- the decomposition product oxidatively decomposed by the acid-decomposable mist is completely rendered harmless without deteriorating the heat insulating wall 116.
- FIG. 45 is a diagram showing the relationship between the pesticide removal performance and the treatment time in the refrigerator shown in FIG.
- 10 cherry tomatoes with about 3 ppm of malathion were used, treated with mist spraying device 61 for 12 hours, and then irradiated with ultraviolet rays by changing the irradiation time with decomposition unit 200. After that, measure the concentration of malathion by GC and calculate the removal rate of malathion.
- the refrigerator shown in FIG. 43 includes the mist spraying device 61 and the disassembling unit 200.
- the mist spraying device 61 includes a water storage tank 72 and a spraying unit 74 that sprays the stored water 84.
- the disassembly unit 200 is composed of an ultraviolet LED. If the decomposition unit 200 irradiates the crops with ultraviolet rays for a long time, oxidative degradation equivalent to that of an ultraviolet lamp can be obtained. Further, the heat insulation wall 116 is not deteriorated by ultraviolet rays. Therefore, the material cost of the heat insulating wall 116 is reduced, and the heat insulating wall 116 has a long life. In addition, by setting the irradiation wavelength of the decomposition unit 200 in the vicinity of 350 nm, the influence of the ultraviolet rays on the human body can be made within a range where there is no problem.
- FIG. 46 is a side sectional view of still another refrigerator according to Embodiment 11 of the present invention.
- FIG. 47 is a block diagram of a control system in the refrigerator shown in FIG.
- the refrigerator shown in FIG. 46 differs from the refrigerator shown in FIG. 39 in that a door open / close detection unit (hereinafter referred to as a detection unit) 330 is provided on the door 400A covering the opening of the vegetable compartment 114, and a switch 403 is provided in the refrigerator compartment. It is a point provided on the door 400B that covers the opening of 11 2. Another difference is that a light shielding plate 402 made of stainless steel is provided on the top top of the vegetable compartment 114 so as to surround the disassembly unit 121. Become. Further, as shown in FIG. 47, a control unit 108 is provided for controlling the operation of the disassembling unit 121 and the mist spraying device 120 by input from the detecting unit 330 and the switch 403. The detector 330 detects the opening and closing of the door 400A.
- the detection unit 330 is composed of, for example, a micro switch pressure sensor. Otherwise, the configuration is the same as that shown in FIG.
- the control unit 108 receives this, and the disassembly unit 121 is energized.
- the switch 403 By providing the switch 403 in this way, it can be operated only when the user recognizes that the disassembly unit 121 has been operated. Therefore, safety is improved. Furthermore, since it can be operated only when needed by a person, it can reduce energy consumption compared to using it in continuous operation, leading to savings in electricity costs. It should be noted that a series of operations with the operation starting force of the mist spraying device 120 may be started by turning on the switch 403.
- the control unit 108 supplies power to the disassembling unit 121 only when the detection unit 330 detects the closed state of the door 400A. In this way, the user is prevented from touching the ultraviolet rays, and safety is improved. Furthermore, by providing a light shielding plate 402 around the disassembly unit 121, it is possible to prevent the ultraviolet light from the disassembly unit 121 from being irradiated on the door 400A side. Therefore, when the user opens the door 400A, the ultraviolet rays are irradiated only to the stored items in the vegetable compartment 114 where the ultraviolet rays are not directly seen. Thus, safety is improved. Furthermore, the light-shielding plate 402 does not disperse the energy of ultraviolet rays irradiated to the crops in the vegetable compartment 114, so that the decomposition efficiency of harmful substances is improved.
- the switch 403 that operates the disassembling unit 121 is only switched to ONZOFF.
- a switch that allows the user to select the amount of ultraviolet light is preferable. In this case, a user is required Since the amount of UV light required at times can be selected, the energy used is reduced.
- the light shielding plate 402 may be made of metal or glass that is less deteriorated by ultraviolet rays in addition to stainless steel.
- the heat insulating wall 116 may be made of metal or glass that is less deteriorated by ultraviolet rays, in addition to being made of stainless steel.
- the disassembling parts 121 and 200 are arranged on the top surface of the vegetable compartment 114.
- the container 228 in the vegetable compartment 114 is made transparent, the same effect can be obtained regardless of where it is placed in the vegetable compartment 114.
- the vegetable compartment 114 is arranged in the upper stage of the freezer compartment 115. In addition, if the vegetable compartment 114 is arranged at the lowest level, when using the vegetable compartment 114, the vegetable compartment 114 can be used more safely than ultraviolet rays directly enter the user's eyes.
- the disassembling units 121 and 200 are energized after the operation of the mist spraying devices 120 and 61.
- the control units 106, 107, and 108 all control as such. For this reason, energy can be used only for the decomposition of harmful substances such as agricultural chemicals and unreacted substances separated by the mist sprayed from the mist spraying devices 120 and 61, and the decomposition efficiency is improved.
- the ultraviolet rays emitted from the decomposition sections 121 and 200 preferably have a wavelength of 220 nm or more and 400 nm or less. Thereby, the oxidative degradation rate of harmful substances such as agricultural chemicals is improved.
- the storage according to the present invention can increase the safety of agricultural products under various circumstances in distribution.
- the refrigerator to which this storage is applied has a simple structure and can improve the safety of crops at home and commercial facilities without impairing usability.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Polymers & Plastics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Storage Of Harvested Produce (AREA)
- Special Spraying Apparatus (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2005800247925A CN1989383B (zh) | 2004-07-22 | 2005-07-21 | 收纳库和使用该收纳库的冷藏库 |
JP2006529263A JP4151729B2 (ja) | 2004-07-22 | 2005-07-21 | 収納庫とそれを用いた冷蔵庫 |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-214066 | 2004-07-22 | ||
JP2004214066 | 2004-07-22 | ||
JP2005-030083 | 2005-02-07 | ||
JP2005030083 | 2005-02-07 | ||
JP2005-107272 | 2005-04-04 | ||
JP2005107272 | 2005-04-04 | ||
JP2005174608 | 2005-06-15 | ||
JP2005-174608 | 2005-06-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006009190A1 true WO2006009190A1 (ja) | 2006-01-26 |
Family
ID=35785297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/013352 WO2006009190A1 (ja) | 2004-07-22 | 2005-07-21 | 収納庫とそれを用いた冷蔵庫 |
Country Status (2)
Country | Link |
---|---|
JP (2) | JP4151729B2 (ja) |
WO (1) | WO2006009190A1 (ja) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007054808A (ja) * | 2005-08-26 | 2007-03-08 | Matsushita Electric Works Ltd | 静電霧化装置 |
JP2008089282A (ja) * | 2006-10-05 | 2008-04-17 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
WO2008072759A1 (en) * | 2006-12-15 | 2008-06-19 | Panasonic Electric Works Co., Ltd. | Electrostatically atomizing unit for use in a temperature-regulating appliance |
JP2008155121A (ja) * | 2006-12-22 | 2008-07-10 | Matsushita Electric Works Ltd | 静電霧化装置 |
WO2008139706A1 (ja) | 2007-04-26 | 2008-11-20 | Panasonic Corporation | 冷蔵庫 |
JP2008292134A (ja) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | 冷蔵庫 |
JP2008292135A (ja) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | 冷蔵庫 |
WO2009047896A1 (ja) * | 2007-10-09 | 2009-04-16 | Panasonic Corporation | 冷蔵庫 |
EP2065097A1 (en) * | 2007-11-27 | 2009-06-03 | Panasonic Electric Works Co., Ltd. | Electrostatic atomizer and coolant-circulating equipment including the same |
JP2009243782A (ja) * | 2008-03-31 | 2009-10-22 | Panasonic Corp | 冷蔵庫 |
JP2009285538A (ja) * | 2008-05-27 | 2009-12-10 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
JP2010023038A (ja) * | 2009-10-30 | 2010-02-04 | Tamura Seisakusho Co Ltd | 霧化装置 |
JP2010159901A (ja) * | 2009-01-07 | 2010-07-22 | Panasonic Corp | 冷蔵庫 |
JP2010172891A (ja) * | 2010-02-22 | 2010-08-12 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
WO2011001335A1 (en) * | 2009-06-29 | 2011-01-06 | Koninklijke Philips Electronics N.V. | Device and method for cleaning food |
WO2011024454A1 (ja) * | 2009-08-26 | 2011-03-03 | パナソニック株式会社 | 冷蔵庫 |
JP2011047549A (ja) * | 2009-08-26 | 2011-03-10 | Panasonic Corp | 冷蔵庫 |
JP2011092936A (ja) * | 2010-12-07 | 2011-05-12 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
US7966842B2 (en) | 2007-04-26 | 2011-06-28 | Panasonic Corporation | Refrigerator, and electric device |
JP2020030038A (ja) * | 2019-10-30 | 2020-02-27 | 東芝ライフスタイル株式会社 | 冷蔵庫及び紫外線照射装置 |
CN111802564A (zh) * | 2019-04-12 | 2020-10-23 | 合肥华凌股份有限公司 | 农药残留的处理装置及处理方法、***、冰箱和存储介质 |
JP6796700B1 (ja) * | 2019-12-11 | 2020-12-09 | 東京瓦斯株式会社 | 光照射システム |
JP2023093814A (ja) * | 2021-12-23 | 2023-07-05 | 東芝ライフスタイル株式会社 | 冷蔵庫用の収容容器、及び冷蔵庫 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012088032A (ja) * | 2010-09-21 | 2012-05-10 | Panasonic Corp | 霧化装置の制御方法、放電装置の制御方法および冷蔵庫 |
KR102204911B1 (ko) * | 2020-07-15 | 2021-01-18 | 최병엽 | 저온창고용 살균수 공급장치 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6124862Y2 (ja) * | 1981-07-04 | 1986-07-25 | ||
JPH0311636Y2 (ja) * | 1984-05-30 | 1991-03-20 | ||
JPH1165680A (ja) * | 1997-08-26 | 1999-03-09 | Nikko Souhonshiya:Kk | 湿度制御方法 |
JP2000220949A (ja) * | 1999-01-29 | 2000-08-08 | Sharp Corp | 冷蔵庫 |
JP2002253400A (ja) * | 2001-03-05 | 2002-09-10 | Matsushita Refrig Co Ltd | 保鮮庫 |
JP2002286356A (ja) * | 2001-03-28 | 2002-10-03 | Mitsubishi Electric Corp | 負イオン及びオゾンの発生装置 |
JP2003121058A (ja) * | 2001-10-05 | 2003-04-23 | Sanyo Electric Co Ltd | 冷蔵庫 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5876157A (ja) * | 1981-10-31 | 1983-05-09 | Matsushita Electric Works Ltd | 噴霧装置 |
JPH04371778A (ja) * | 1991-06-21 | 1992-12-24 | Matsushita Refrig Co Ltd | 冷蔵庫 |
JPH07135945A (ja) * | 1993-11-15 | 1995-05-30 | Jiokuto:Kk | 食品鮮度維持装置 |
IL107768A0 (en) * | 1993-11-26 | 1994-02-27 | Shira Aeroponics 1984 Ltd | Treatment of agricultural produce |
JP3552357B2 (ja) * | 1995-09-08 | 2004-08-11 | 松下電器産業株式会社 | 食物洗浄装置 |
JP2001050621A (ja) * | 1999-08-05 | 2001-02-23 | Matsushita Refrig Co Ltd | 自動製氷装置 |
JP2001133096A (ja) * | 1999-11-05 | 2001-05-18 | Fujitsu General Ltd | 電気冷蔵庫 |
JP2002277151A (ja) * | 2001-03-15 | 2002-09-25 | Matsushita Refrig Co Ltd | 加湿装置およびそれを用いた冷蔵庫 |
JP2003090658A (ja) * | 2001-09-20 | 2003-03-28 | Fujitsu General Ltd | 自動製氷機の給水装置 |
JP2003090659A (ja) * | 2001-09-20 | 2003-03-28 | Fujitsu General Ltd | 冷蔵庫の給水装置 |
JP2003121050A (ja) * | 2001-10-05 | 2003-04-23 | Sanyo Electric Co Ltd | 冷蔵庫 |
JP2004125179A (ja) * | 2002-04-03 | 2004-04-22 | Sanyo Electric Co Ltd | 冷蔵庫及び超音波加湿器 |
-
2005
- 2005-07-21 JP JP2006529263A patent/JP4151729B2/ja active Active
- 2005-07-21 WO PCT/JP2005/013352 patent/WO2006009190A1/ja active Application Filing
-
2009
- 2009-10-01 JP JP2009229453A patent/JP4905528B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6124862Y2 (ja) * | 1981-07-04 | 1986-07-25 | ||
JPH0311636Y2 (ja) * | 1984-05-30 | 1991-03-20 | ||
JPH1165680A (ja) * | 1997-08-26 | 1999-03-09 | Nikko Souhonshiya:Kk | 湿度制御方法 |
JP2000220949A (ja) * | 1999-01-29 | 2000-08-08 | Sharp Corp | 冷蔵庫 |
JP2002253400A (ja) * | 2001-03-05 | 2002-09-10 | Matsushita Refrig Co Ltd | 保鮮庫 |
JP2002286356A (ja) * | 2001-03-28 | 2002-10-03 | Mitsubishi Electric Corp | 負イオン及びオゾンの発生装置 |
JP2003121058A (ja) * | 2001-10-05 | 2003-04-23 | Sanyo Electric Co Ltd | 冷蔵庫 |
Cited By (39)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007054808A (ja) * | 2005-08-26 | 2007-03-08 | Matsushita Electric Works Ltd | 静電霧化装置 |
JP2008089282A (ja) * | 2006-10-05 | 2008-04-17 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
US8209990B2 (en) | 2006-12-15 | 2012-07-03 | Panasonic Corporation | Electrostatically atomizing unit for use in a temperature-regulating appliance |
WO2008072759A1 (en) * | 2006-12-15 | 2008-06-19 | Panasonic Electric Works Co., Ltd. | Electrostatically atomizing unit for use in a temperature-regulating appliance |
JP2008149242A (ja) * | 2006-12-15 | 2008-07-03 | Matsushita Electric Works Ltd | 静電霧化装置 |
JP2008155121A (ja) * | 2006-12-22 | 2008-07-10 | Matsushita Electric Works Ltd | 静電霧化装置 |
US8191805B2 (en) | 2006-12-22 | 2012-06-05 | Panasonic Corporation | Electrostatic atomizer |
WO2008139706A1 (ja) | 2007-04-26 | 2008-11-20 | Panasonic Corporation | 冷蔵庫 |
EP2144023A1 (en) * | 2007-04-26 | 2010-01-13 | Panasonic Corporation | Refrigerator |
EP2144023A4 (en) * | 2007-04-26 | 2012-08-08 | Panasonic Corp | FRIDGE |
US7966842B2 (en) | 2007-04-26 | 2011-06-28 | Panasonic Corporation | Refrigerator, and electric device |
JP2008292135A (ja) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | 冷蔵庫 |
JP2008292134A (ja) * | 2007-04-26 | 2008-12-04 | Panasonic Corp | 冷蔵庫 |
WO2009047896A1 (ja) * | 2007-10-09 | 2009-04-16 | Panasonic Corporation | 冷蔵庫 |
US8033485B2 (en) | 2007-11-27 | 2011-10-11 | Panasonic Electric Works Co., Ltd. | Electrostatic atomizer and coolant-circulating equipment including same |
EP2065097A1 (en) * | 2007-11-27 | 2009-06-03 | Panasonic Electric Works Co., Ltd. | Electrostatic atomizer and coolant-circulating equipment including the same |
EP2390007A1 (en) * | 2007-11-27 | 2011-11-30 | Panasonic Electric Works Co., Ltd. | Electrostatic atomizer |
JP2009243782A (ja) * | 2008-03-31 | 2009-10-22 | Panasonic Corp | 冷蔵庫 |
JP2009285538A (ja) * | 2008-05-27 | 2009-12-10 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
JP2010159901A (ja) * | 2009-01-07 | 2010-07-22 | Panasonic Corp | 冷蔵庫 |
WO2011001335A1 (en) * | 2009-06-29 | 2011-01-06 | Koninklijke Philips Electronics N.V. | Device and method for cleaning food |
JP2011047549A (ja) * | 2009-08-26 | 2011-03-10 | Panasonic Corp | 冷蔵庫 |
CN102472551A (zh) * | 2009-08-26 | 2012-05-23 | 松下电器产业株式会社 | 冷藏库 |
WO2011024454A1 (ja) * | 2009-08-26 | 2011-03-03 | パナソニック株式会社 | 冷蔵庫 |
US8800312B2 (en) | 2009-08-26 | 2014-08-12 | Panasonic Corporation | Refrigerator |
CN102472551B (zh) * | 2009-08-26 | 2015-09-30 | 松下知识产权经营株式会社 | 冷藏库 |
JP2010023038A (ja) * | 2009-10-30 | 2010-02-04 | Tamura Seisakusho Co Ltd | 霧化装置 |
JP2010172891A (ja) * | 2010-02-22 | 2010-08-12 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
JP2011092936A (ja) * | 2010-12-07 | 2011-05-12 | Panasonic Electric Works Co Ltd | 静電霧化装置 |
CN111802564A (zh) * | 2019-04-12 | 2020-10-23 | 合肥华凌股份有限公司 | 农药残留的处理装置及处理方法、***、冰箱和存储介质 |
CN111802564B (zh) * | 2019-04-12 | 2023-04-18 | 合肥华凌股份有限公司 | 农药残留的处理方法、***、冰箱和存储介质 |
JP2020030038A (ja) * | 2019-10-30 | 2020-02-27 | 東芝ライフスタイル株式会社 | 冷蔵庫及び紫外線照射装置 |
JP2022020794A (ja) * | 2019-10-30 | 2022-02-01 | 東芝ライフスタイル株式会社 | 冷蔵庫及び紫外線照射装置 |
JP7173946B2 (ja) | 2019-10-30 | 2022-11-16 | 東芝ライフスタイル株式会社 | 冷蔵庫 |
JP7441817B2 (ja) | 2019-10-30 | 2024-03-01 | 東芝ライフスタイル株式会社 | 冷蔵庫及び紫外線照射装置 |
JP6796700B1 (ja) * | 2019-12-11 | 2020-12-09 | 東京瓦斯株式会社 | 光照射システム |
JP2021090923A (ja) * | 2019-12-11 | 2021-06-17 | 東京瓦斯株式会社 | 光照射システム |
JP2023093814A (ja) * | 2021-12-23 | 2023-07-05 | 東芝ライフスタイル株式会社 | 冷蔵庫用の収容容器、及び冷蔵庫 |
JP7405821B2 (ja) | 2021-12-23 | 2023-12-26 | 東芝ライフスタイル株式会社 | 冷蔵庫用の収容容器、及び冷蔵庫 |
Also Published As
Publication number | Publication date |
---|---|
JP4905528B2 (ja) | 2012-03-28 |
JP2010060276A (ja) | 2010-03-18 |
JPWO2006009190A1 (ja) | 2008-05-01 |
JP4151729B2 (ja) | 2008-09-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4905528B2 (ja) | 収納庫とそれを用いた冷蔵庫 | |
JP4483926B2 (ja) | 収納庫とそれを用いた冷蔵庫 | |
JP5148112B2 (ja) | 冷蔵庫 | |
EP2199714B9 (en) | Refrigerator | |
CN1989383B (zh) | 收纳库和使用该收纳库的冷藏库 | |
JP4400523B2 (ja) | 冷蔵庫 | |
JP4742892B2 (ja) | 冷蔵庫 | |
AU2008325939B2 (en) | Refrigerator | |
JP4052353B2 (ja) | 冷蔵庫 | |
JP4196127B2 (ja) | 冷蔵庫 | |
JP2007278569A (ja) | 冷蔵庫 | |
JP2008089282A (ja) | 冷蔵庫 | |
JP5315603B2 (ja) | 冷蔵庫 | |
JP5435855B2 (ja) | 冷蔵庫 | |
JP2008051493A (ja) | 冷蔵庫 | |
JP2008089203A (ja) | 冷蔵庫 | |
JP5298503B2 (ja) | 冷蔵庫 | |
JP4844326B2 (ja) | 冷蔵庫 | |
JP4591345B2 (ja) | 冷蔵庫 | |
JP5345776B2 (ja) | 冷蔵庫 | |
WO2011121937A1 (ja) | 冷蔵庫 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2006529263 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200580024792.5 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |