JP2006038444A - Refrigerator - Google Patents

Abstract

In ozone water atomized by a method of atomizing ozone water with an ultrasonic vibration element, the particles do not become fine and the adhesion rate to the food surface of mist is low. Moreover, if it sprays continuously in order to raise an adhesion rate, vegetables will cause water rot and the inside of a warehouse will dew.
The water stored in a water storage tank is atomized by a mist spraying device that is an electrostatic atomizing device, whereby the electrostatically added fine mist is sprayed into the refrigerator and thereby the inside of the refrigerator. By spraying fine mist that has been radicalized uniformly in the chamber to prevent water rot of the food and condensation in the chamber, the food can be preserved, sterilized, deodorized, and harmful substances removed.
[Selection] Figure 1

Description

  The present invention relates to a refrigerator that uses electrostatic spray of ozone water or functional water for food preservation, sterilization, deodorization, and removal of harmful substances.

  Conventionally, this type of mist spraying function has produced ozone water by mixing ozone water generated by decomposing oxygen in the air with an ozone generator that discharges ozone water or ultraviolet rays, and generates ozone water. There is one in which mist is generated and sprayed by a sonic spraying method (see, for example, Patent Document 1).

  FIG. 7 shows a refrigerator provided with a conventional ozone water mist device described in Patent Document 1. As shown in the figure, an ozone generator 9, an exhaust port 10, a water supply path directly connected to a water supply, and an ozone water supply path are provided in the vicinity of the vegetable compartment 7, and the ozone water supply path is led to the vegetable compartment 7. Yes. The ozone generator 9 is configured to be connected to a water supply unit directly connected to a water supply, and the exhaust port 9 is configured to be connected to an ozone water supply path. The water supply path is provided with an on-off valve V4, and the ozone water supply path is provided with an on-off valve V5. An ultrasonic element 8 is provided in the vegetable compartment 7.

  The operation of the refrigerator configured as described above will be described below.

In a refrigerator that is cooled by forced circulation of cold air, a vegetable room 7 sealed as a high-humidity storage room is cooled to about 5 ° C. at a humidity of 80% or more from the surroundings by indirect cooling. The ozone generator 9 can apply an alternating voltage of 5 to 25 kV to generate ozone by a silent discharge method, and the ozone and water are brought into contact with each other to form ozone water as treated water. At this time, ozone not dissolved in water is exhausted from the exhaust port 10, and a honeycomb-shaped ozone decomposition catalyst is installed in the exhaust port 10 to render the ozone harmless. Thus, the produced | generated ozone water is guide | induced to the vegetable compartment 7 of a refrigerator. The guided ozone water is atomized by the ultrasonic vibrator 8 and sprayed onto the vegetable compartment 7. The sprayed ozone water kills bacteria attached to food and prevents them from growing. As a result, food rot can be delayed.
JP 2000-220949 A

  However, in the above conventional configuration, the ozone water particles are atomized by the ultrasonic vibration element, so that the atomized ozone water particles do not become fine, so it cannot be uniformly sprayed in the cabinet, and the food surface of the mist The adhesion rate to is low. Moreover, when it sprayed continuously in order to raise an adhesion rate, it had the subject that a vegetable etc. produced water rot or the inside of a warehouse condensed.

  The present invention solves the above-described conventional problems, and provides a refrigerator that sprays uniformly on the entire interior of the refrigerator, has a high mist adhesion rate on the food surface, and does not cause water rot of food or condensation in the refrigerator. It is an object.

  In order to solve the above-mentioned problems, a refrigerator according to the present invention includes a vegetable compartment formed by a heat-insulating section in a refrigerator, a water storage tank for storing stored water, and a spraying device for atomizing the stored water to generate mist. The mist is generated by an electrostatic atomization method and sprayed onto the vegetable compartment.

  As a result, a fine mist having a charge can be generated, and the fine mist sprayed in the vegetable compartment can be uniformly attached to the wall surface, the vegetable, and the fruit surface.

  The refrigerator of the present invention uniformly sprays the radicalized fine mist into the vegetable room to prevent food rot and dew condensation in the food, thereby preserving and sanitizing food, deodorizing, and removing harmful substances. It can be carried out.

  Invention of Claim 1 is provided with the vegetable compartment formed by the heat insulation division in the refrigerator, the water storage tank which stores stored water, and the spray apparatus which atomizes the stored water and generates mist, The mist is It is generated by the electrostatic atomization method and sprayed onto the vegetable room, so that a fine mist with a charge is generated. Can adhere uniformly.

  The invention according to claim 2 is characterized in that the mist contains ozone, so that in addition to the oxidative decomposition power of ozone, the oxidative decomposition power of radicalized water molecules can be used for sterilization, deodorization and removal of harmful substances. Can improve the performance.

  The invention according to claim 3 is characterized by the fact that the mist is acidic water of Ph1 to 7, so that in addition to the oxidative decomposition power of acidic water, the oxidative decomposition power of radicalized water molecules can be used for sterilization, deodorization and harmful substances Performance such as removal can be improved.

  According to a fourth aspect of the present invention, an ozone generator and a water supply unit for supplying water to the water tank are provided in the vicinity of the water tank, and ozone generated by decomposing oxygen in the air is mixed with water. By generating ozone water, a fine mist of electrostatically loaded ozone water is generated. In addition to the oxidative decomposition power of ozone, the oxidative decomposition power of radicalized water molecules can eliminate bacteria and deodorize. Performance such as removal of harmful substances can be improved.

  According to a fifth aspect of the present invention, the ozone generator is provided in a portion of the water tank, and ozone water is generated by decomposing dissolved oxygen in water stored in the water tank to generate ozone. By dissolving the dissolved oxygen in the water stored in the water storage tank with the ozone generator to generate ozone, the dissolved oxygen contained in the water is directly decomposed in the water, thereby generating a small amount of generated oxygen. Ozone water containing ozone is generated, and low-concentration ozone water that is safe for the human body and has no ozone odor can be generated with a simple structure that does not require special materials.

  According to a sixth aspect of the present invention, the storage tank includes an electrolytic tank, and includes a direct current power source that supplies a direct current to the electrolytic tank, and electrolyzes the stored water to generate acidic water. Mist sprayed with acidic water generated on the anode side will be sprayed, and in addition to the oxidative decomposition power of acidic water, the oxidative decomposition power of radicalized water molecules will be used for sterilization, deodorization and removal of harmful substances, etc. Performance can be increased.

  According to a seventh aspect of the present invention, the spray device comprises a spraying pressurizing means, a spray nozzle, and an annular electrode provided in the spray nozzle, and applying a high voltage to the electrode allows the Electrostatic addition is performed on the particles sprayed from the nozzle, and electrostatic fog can be generated with a simple structure.

  According to an eighth aspect of the present invention, the spray device has one end located in the water storage tank, the other end opened in the refrigerator cabinet, and an electrode provided in the vicinity of the spray tip in the refrigerator cabinet. By applying a high voltage to the electrode, an electrostatic load is applied to the water particles sprayed from the spray tip, thereby existing between the spray tip and the surrounding part. A plurality of liquid yarns are drawn out from the spray tip by an electric field, and further dispersed in charged droplets and sprayed with mist, so that the mist can be refined and the adhesion rate to the food surface can be improved. .

(Embodiment 1)
1 is a side sectional view of a vegetable room of a refrigerator according to Embodiment 1 of the present invention. FIG. 2 is an enlarged view of a main part of the mist spraying apparatus according to Embodiment 1 of the present invention. FIG. 3 is a diagram showing the agrochemical removal performance of ozone water mist in Embodiment 1 of the present invention.

  1 and 2, a vegetable room 12 that is cooled by indirect cooling is provided inside the refrigerator 11, and a mist spraying device 21 is provided on the upper back of the vegetable room 12. The mist spraying device 21 includes a water tank 22 for storing ozone water and a spray nozzle 23 for spraying ozone water by an ejector system, and an ozone water supply port 24 is provided above the water tank 22. An ozone generator 25 that generates ozone by a high voltage method is provided in the vicinity of the vegetable compartment 12 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 supply tank (not shown). An annular electrode 29 and a power source 30 for applying a high voltage are provided near the tip of the spray nozzle 23 of the mist spraying device 21.

  The operation | movement and effect | action are demonstrated below about the mist spraying apparatus of the refrigerator comprised as mentioned above.

  First, ozone gas is generated by the ozone generator 25. The generated ozone gas is supplied from a water supply tank (not shown), mixed with water supplied from a water supply path 28 to become ozone water, passes through the ozone water path 27, and passes through the ozone water supply port 24. The water is supplied into the water storage tank 22 and stored. The ozone water in the water storage tank 22 is sprayed as a mist from the spray nozzle 23 into the vegetable compartment 12. At that time, a high voltage is applied from the power source 30 to the annular electrode 29 provided in the vicinity of the tip of the spray nozzle 23, and the ozone water mist sprayed from the spray nozzle 23 is electrostatically added.

  FIG. 3 shows the effect of removing tomato-adhered pesticides by ozone water mist according to Embodiment 1 of the present invention. The experimental method is to store the cherry tomato with malathion 3-5 ppm in the vegetable room, and spray it with ozone water mist for 10 seconds at intervals of 20 minutes. The residual malathion concentration was measured by gas chromatography, and the removal rate was calculated. In addition, the thing which preserve | saved the cherry tomato which adhered the malathion similarly in the vegetable room without a mist spraying apparatus was used as a control. As a result of the experiment, the removal rate of the control A was 20%, whereas the removal rate of the mist spray specification B was 40%, which was a double effect.

  As described above, in the present embodiment, ozone water generated by mixing ozone and water in the vicinity of the vegetable room is sprayed with the mist electrostatically added to the vegetable room by the mist spraying device, so that the inside of the cabinet is The sprayed fine mist uniformly adheres to the inner wall surface and the surface of vegetables and fruits, and the mist enters fine holes on the inner wall surface and the surface of vegetables and fruits, raising the dirt and harmful substances inside the fine holes. The removal effect of dirt and harmful substances can be enhanced. Moreover, while improving the oxidative decomposition effect of the harmful substance on the vegetable surface, the moisture retention property of vegetables can also be improved.

  In addition, electrostatic addition to ozone mist radicalizes water molecules in ozone mist and generates OH radicals. In addition to the oxidizing power of ozone, the oxidizing power of OH radicals eliminates bacteria, deodorization and harmful The substance decomposition performance can be enhanced.

  In the present invention, ozone water is generated by mixing water and ozone in the ozone water path 27. However, an ozone generator is provided in the vicinity of the mist spraying device 21 to generate ozone, and the nozzle of the mist spraying device 21 is used. The same effect can be obtained by a configuration in which the water is mixed with water in the unit 23 and sprayed as ozone water mist.

  In the present invention, water is supplied from a water supply tank (not shown). However, if the drain water of the refrigerator is used and the drain water is supplied into the water storage tank 22, the water is supplied to the water supply tank 22. You can save time and effort.

(Embodiment 2)
FIG. 4 is an enlarged view of a main part of a mist spraying device for a refrigerator according to Embodiment 2 of the present invention.

  In FIG. 4, the same means and the same members as those in FIG.

  In FIG. 4, a mist spraying device 21 is provided on the upper rear surface of the vegetable compartment 12. The mist spraying device 21 includes a water storage tank 22 for storing ozone water and a spray nozzle 23 for spraying ozone water by an ejector system, and water supplied from a water supply tank (not shown) is stored in the water storage tank 22 above the water storage tank. A water supply port 31 for supplying the water 22 is provided. An ozone generator 25 that generates ozone by a high voltage method is provided in a portion of the water tank.

  An annular electrode 29 and a power source 30 for applying a high voltage are provided near the tip of the spray nozzle 23 of the mist spraying device 21.

  The operation | movement and effect | action are demonstrated below about the mist spraying apparatus of the refrigerator comprised as mentioned above.

  First, water is supplied from a water supply tank (not shown), supplied from the water supply port 31 into the water storage tank 22, and stored. Next, a high voltage is applied to the ozone generator 25, and dissolved oxygen in water is dissociated into oxygen atoms by collision with electrons. The oxygen atoms combine with dissolved oxygen molecules to generate ozone and react with water molecules to simultaneously generate OH radicals. The generated ozone is dissolved in the stored water to generate ozone water. The ozone water in the water storage tank 22 is sprayed as a mist from the spray nozzle 23 into the vegetable compartment 12. At that time, a high voltage is applied from the power source 30 to the annular electrode 29 provided in the vicinity of the tip of the spray nozzle 23, and the ozone water mist sprayed from the spray nozzle 23 is electrostatically applied.

  As described above, in the present embodiment, by immersing the ozone generating unit that generates ozone by the discharge method in the stored water in the water tank, the dissolved oxygen in the stored water in the water tank is dissociated, and ozone and OH Since radicals are generated and 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 and does not require special materials. With a simple structure, it is possible to generate and spray ozone water containing low-concentration ozone safe for the human body and OH radicals having stronger oxidizing power than ozone.

(Embodiment 3)
FIG. 5 is an enlarged view of a main part of a mist spraying device for a refrigerator according to Embodiment 3 of the present invention.

  In FIG. 5, the same means and the same members as those in FIG.

  In FIG. 5, the mist spraying apparatus 21 is provided in the upper back surface of the vegetable compartment. The mist spraying device 21 includes an electrolytic tank 32 that electrolyzes water into acidic water and alkaline water, and a spray nozzle 23 that sprays acidic water generated by electrolysis by an ejector method. Further, the electrolytic cell 32 is composed of two tanks, an anode electrode side tank 32a for generating acidic water and a cathode electrode side tank 32b for generating alkaline water, and the spray nozzle 23 is an anode electrode side tank for generating acidic water. 32a is provided. A water supply port 31 is provided in the upper part of the electrolytic cell.

  In the electrolytic cell 32, an anode electrode plate 34 and a cathode electrode plate 35 are arranged facing each other via a partition wall 33, and a direct current is supplied from a direct current power source 36.

  An annular electrode 29 and a power source 30 for applying a high voltage are provided near the tip of the spray nozzle 23 of the mist spraying device 21.

  The operation | movement and effect | action are demonstrated below about the mist spraying apparatus of the refrigerator comprised as mentioned above.

  First, water is supplied from the water supply unit 31 and stored in the electrolytic cell 32. Next, when a direct current is supplied from the direct current power source 36 to the anode electrode plate 34 and the cathode electrode plate 35, acidic waters Ph1 to Ph7 are generated on the anode electrode plate 34 side, and alkaline water is formed on the cathode electrode plate 35 side. Is generated. The acidic water in the anode side electrolytic cell 32a is sprayed as mist in the vegetable compartment 12 from the spray nozzle 23. At that time, a high voltage is applied from the power source 30 to the annular electrode 29 provided in the vicinity of the tip of the spray nozzle 23, and the acidic water sprayed from the spray nozzle 23 is electrostatically applied.

  As described above, in the present embodiment, the stored water in the electrolytic cell is electrolyzed to produce acidic water, electrostatically added, and the acidic water mist is sprayed into the vegetable compartment, so that it is odorless and acidic. Mist having both the microbial growth inhibitory action of water and the oxidative decomposition ability of radicalized water molecules is sprayed, and the sterilization effect can be enhanced.

(Embodiment 4)
FIG. 6 is an enlarged view of a main part of the mist spraying device for a refrigerator in the fourth embodiment.

  In FIG. 6, the same means and the same members as those in FIG.

  In FIG. 6, the mist spraying device 21 is located at one end in a water storage tank 22 for storing functional water or water such as ozone water or acidic water, a storage water supply unit 40 for supplying stored water, and the water storage tank 22. In the vegetable compartment 12 and the electrode 43 for applying a high voltage to the stored water in the water storage tank 22. .

  The operation | movement and effect | action are demonstrated below about the mist spraying apparatus of the refrigerator comprised as mentioned above.

  First, functional water or water is supplied to the stored water supply unit 40 and stored in the water tank 22. Next, when 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 an electric field existing between the spray tip 41 and the surrounding portion (not shown), Further, it is dispersed in charged droplets to become mist and sprayed into the vegetable compartment 12.

  As described above, in the present embodiment, by applying a high voltage directly to the stored water in the water tank and spraying the electrostatically added stored water, the electrostatic addition rate of the mist increases, and the mist fineness is increased. And the adhesion rate to the food surface can be improved.

  In addition, the longer the mist stay time in the atmosphere due to the refinement of functional water, the greater the chance that the functional water fine mist will come into contact with the floating bacteria in the warehouse and the diffused odor substance in the warehouse. Can be increased.

  As described above, the refrigerator mist spraying apparatus according to the present invention sprays fine mist having strong oxidizing power and adhesion to the food surface, high performance deodorization, sterilization, removal of harmful substances, and moisture retention of vegetables. Therefore, it can be applied to household refrigerators, commercial refrigerators, and food storage.

Side sectional view of the vegetable compartment of the refrigerator in Embodiment 1 of the present invention. The principal part enlarged view of the mist spraying apparatus of the refrigerator in Embodiment 1 of this invention The figure which shows the agrochemical removal performance of the ozone water mist of the refrigerator in Embodiment 1 of this invention The principal part enlarged view of the mist spraying apparatus of the refrigerator in Embodiment 2 of this invention The principal part enlarged view of the mist spraying apparatus of the refrigerator in Embodiment 3 of this invention The principal part enlarged view of the mist spraying apparatus of the refrigerator in Embodiment 4 of this invention Main part configuration diagram of a conventional refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Refrigerator 21 Mist spray apparatus 22 Water storage tank 23 Spray nozzle 25 Ozone generator 28 Water supply part 29 Electrode 30 Power supply 32 Electrolytic tank 36 DC power supply 41 Spray tip part 42 Capillary supply structure 43 Electrode

Claims (8)

  A vegetable room formed by a heat insulating compartment in the refrigerator, a water storage tank for storing stored water, and a spraying device for generating mist by atomizing the stored water, wherein the mist is generated by an electrostatic atomization method. A refrigerator that is sprayed on the vegetable compartment.   The refrigerator according to claim 1, wherein the mist contains ozone.   The refrigerator according to claim 1, wherein the mist is acid water of Ph1 to Ph7.   An ozone generator in the vicinity of the water tank and a water supply unit for supplying water to the water tank, and ozone water generated by decomposing oxygen in the air is mixed with water to generate ozone water. 2. The refrigerator according to 2.   The refrigerator according to claim 2, wherein the ozone generator is provided in a part of the water tank, and ozone water is generated by decomposing dissolved oxygen in water stored in the water tank to generate ozone.   The refrigerator according to claim 3, wherein the storage tank includes an electrolytic tank, and includes a direct current power source that supplies a direct current to the electrolytic tank, and electrolyzes the stored water to generate acidic water.   The spraying device includes a spraying pressurizing unit, a spray nozzle, and an annular electrode provided in the spray nozzle. By applying a high voltage to the electrode, electrostatic discharge is applied to particles sprayed from the nozzle. The refrigerator according to any one of claims 1 to 6, wherein addition is performed.   The spraying device has one end located in the water storage tank, the other end opened in the refrigerator cabinet, and an electrode provided in the vicinity of the spray tip in the refrigerator cabinet. The refrigerator according to any one of claims 1 to 6, wherein an electrostatic load is applied to water particles sprayed from the spray tip by applying a voltage.

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