JP2009243781A - Refrigerator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve a problem found in spraying mist to keep high humidity inside of a refrigerator, wherein the atomization amount can not be adjusted, and the water may be accumulated inside by excess spraying, which may cause water rot of a stored object and breeding of bacteria caused by the accumulated water. <P>SOLUTION: This refrigerator has an adjusting means for adjusting the quantity of water attached to an atomization electrode disposed in an electrostatic atomizing device 131 for spraying mist into a storage chamber thermally insulated and defined, and a temperature detecting means 159 detecting temperatures of a resisting heating element 158 as a heating source for adjusting a temperature of a chip of the atomization electrode 135, and an atomization electrode chip portion is disposed on a means for adjusting the quantity of water of the atomization electrode 135 integrally with the electrostatic atomization device 131, and moisture in the air is condensed on the atomization electrode 135 and sprayed to the storage chamber as mists. Thus the mists is stably sprayed, excess dew condensation of the atomization electrode is prevented, and reliability of an atomizing section is improved. A constitution of a refrigerator side is simplified since it is constituted integrally with the atomizing device. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a refrigerator in which an atomizing device is installed in a storage room space for storing vegetables and the like.

  Factors that affect the decline in freshness of vegetables include temperature, humidity, environmental gas, microorganisms, and light. Vegetables are living things, and respiration and transpiration are performed on the surface of the vegetables. To maintain freshness, it is necessary to suppress respiration and transpiration. Except for some vegetables that cause low-temperature injury, many vegetables have low respiration at low temperatures and can prevent transpiration due to high humidity. In recent years, refrigerators for home use have a sealed vegetable container for the purpose of preserving vegetables, cooling the vegetables to an appropriate temperature, and controlling the transpiration of the vegetables, such as increasing the humidity in the cabinet. ing. Here, there exists what sprays mist as a humidification means in a store | warehouse | chamber.

  Conventionally, refrigerators equipped with this kind of mist spraying function are those that produce and spray mist with an ultrasonic atomizer when the vegetable compartment is low in humidity, humidify the vegetable compartment, and suppress transpiration of vegetables (for example, Patent Document 1).

  FIG. 12 shows a refrigerator provided with a conventional ultrasonic atomizer described in Patent Document 1. FIG. 13 is an enlarged perspective view showing a main part of the ultrasonic atomizer.

  As shown in FIG. 12, the vegetable compartment 21 is provided in the lower part of the main body case 26 of the refrigerator main body 20, and the front opening is closed by the drawer door 22 with which it can be opened and closed freely. Moreover, the vegetable compartment 21 is partitioned off from the upper refrigerator compartment (not shown) by the partition plate 2.

  A fixed hanger 23 is fixed to the inner surface of the drawer door 22, and the vegetable container 1 for storing food such as vegetables is mounted on the fixed hanger 23. The top opening of the vegetable container 1 is sealed with a lid 3. A thawing chamber 4 is provided inside the vegetable container 1, and an ultrasonic atomizer 5 is provided in the thawing chamber 4.

  As shown in FIG. 13, the ultrasonic atomizer 5 includes a mist outlet 6, a water storage container 7, a humidity sensor 8, and a hose receiver 9. The water storage container 7 is connected to a defrost water hose 10 by a hose receiver 9. The defrost water hose 10 is provided with a purification filter 11 for purifying the defrost water at a part thereof.

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

  Cooling air cooled by a heat exchange cooler (not shown) flows through the outer surfaces of the vegetable container 1 and the lid 3, whereby the vegetable container 1 is cooled and the food stored therein is cooled. Further, the defrost water generated from the cooler during the refrigerator operation is purified by the purification filter 11 when passing through the defrost water hose 10 and supplied to the water storage container 7 of the ultrasonic atomizer 5.

  Next, when the humidity sensor 8 detects that the internal humidity is 90% or less, the ultrasonic atomizing device 5 starts humidification, so that the humidity in the vegetable container 1 is kept at a suitable level. Humidity can be adjusted.

  On the other hand, when the humidity sensor 8 detects that the inside humidity is 90% or more, the ultrasonic atomizer 5 stops excessive humidification. As a result, the ultrasonic atomizer 5 can quickly humidify the vegetable compartment, the humidity in the vegetable compartment is always high, the transpiration action of the vegetable or the like is suppressed, and the freshness of the vegetable or the like can be maintained.

  Moreover, the refrigerator provided with the ozone water mist apparatus is shown (for example, refer patent document 2).

The refrigerator has an ozone generator, an exhaust port, a water supply path directly connected to a water supply, and an ozone water supply path in the vicinity of the vegetable compartment. The ozone water supply route is led to the vegetable room. The ozone generator is connected to a water supply unit directly connected to the water supply. Further, the exhaust port is configured to be connected to the ozone water supply path. In addition, an ultrasonic element is provided in the vegetable compartment. Ozone generated by the ozone generator is brought into contact with water to become ozone water as treated water. The generated ozone water is guided to the vegetable compartment of the refrigerator, atomized by an ultrasonic vibrator, and sprayed to the vegetable compartment.
JP-A-6-257933 JP 2000-220949 A

  However, in the above-described conventional configuration, the water supply to the atomizer uses water from a water storage container in which defrost water is stored or tap water, so a defrost water hose, a purification filter, or a water supply directly connected to the water supply is used. A configuration such as a water supply path is necessary, and the configuration is complicated.

  In addition, when spraying mist into a refrigerator storage room, which is a substantially sealed low-temperature space, it is stable and free from unevenness in order to prevent overcondensation in the storage room due to excessive spray volume and spraying in drought conditions. However, in the above conventional configuration, the mist is sprayed for the purpose of increasing the humidity in the chamber, but the amount of atomization cannot be adjusted, and a water pool is accumulated in the chamber due to excessive spraying. There was a problem that it may occur, and storage things such as vegetables may cause water rot.

  An object of the present invention is to perform an appropriate amount of mist spraying.

  In order to solve the above-described conventional problems, the refrigerator of the present invention is sprayed with a storage compartment that is thermally insulated, an atomization unit that sprays mist into the storage chamber, and a mist provided in the atomization unit. The atomization tip and the atomization tip are cooled below the dew point, moisture in the air is condensed on the atomization tip and sprayed as mist on the storage chamber, and the amount of water adhering to the atomization tip is The electrode includes an adjusting means having adjusting cooling means and a heating means, and a temperature detecting means for detecting the temperature of the atomizing portion, and includes an electrode connecting member thermally connected to the atomizing portion and the electrode. The heating means is fixed to the connecting member, and the temperature of the atomizing tip is indirectly controlled by cooling or heating the electrode connecting member by the adjusting means.

  Thus, by providing the adjusting means for adjusting the amount of water for preventing the atomization tip from condensing excessively, it is possible to adjust the size or amount of liquid droplets condensed on the atomization electrode. Therefore, the dew condensation state is stabilized, mist spraying can be performed stably, and excessive dew condensation at the atomizing tip is prevented, thereby improving the reliability of the atomizing unit. Moreover, since the temperature detection means which detects the temperature of the atomization part is provided, it does not depend on the driving | running state (temperature control of each room | chamber) of a refrigerator according to the temperature to detect, but it is mist through an electrode connection member separately. Since the temperature control of the atomizing tip can be performed, the temperature of the atomizing tip can be adjusted more efficiently and with energy saving.

  The refrigerator of the present invention can stably perform mist spraying, prevent excessive condensation at the tip of the atomization, and improve the reliability of the atomization portion. A good refrigerator can be provided.

  The invention according to claim 1 is a heat-insulated compartment storage room, an atomization part for spraying mist in the storage room, an atomization tip part for spraying mist provided in the atomization part, Cooling means and heating means for cooling the atomizing tip to a dew point or less, condensing moisture in the air on the atomizing tip and spraying it as a mist on the storage chamber and adjusting the amount of water adhering to the atomizing tip Adjustment means having a temperature detecting means for detecting the temperature of the atomizing portion, and an electrode connecting member thermally connected to the atomizing portion, and the heating means is provided on the electrode connecting member. The refrigerator is fixed and indirectly controls the temperature of the atomizing tip by cooling or heating the electrode connecting member by the adjusting means.

  Thus, by providing the adjusting means for adjusting the amount of water for preventing the atomization tip from condensing excessively, it is possible to adjust the size or amount of liquid droplets condensed on the atomization electrode. Therefore, the dew condensation state is stabilized, mist spraying can be performed stably, and excessive dew condensation at the atomizing tip is prevented, thereby improving the reliability of the atomizing unit.

  Moreover, since the temperature detection means which detects the temperature of the atomization part is provided, it does not depend on the driving | running state (temperature control of each room | chamber) of a refrigerator according to the temperature to detect, but it is mist through an electrode connection member separately. Since the temperature control of the atomizing tip can be performed, the temperature of the atomizing tip can be adjusted more efficiently and with energy saving.

  Furthermore, the atomizing electrode can be cooled indirectly by cooling the electrode connecting member without directly cooling the atomizing tip, and the electrode connecting member has a larger heat capacity than the atomizing tip. , Because the temperature change of the adjusting means can alleviate the direct influence on the atomization electrode and the temperature of the atomization tip can be adjusted stably, so that the load fluctuation of the atomization tip can be suppressed, A mist spray with a stable spray amount can be realized.

  Furthermore, it becomes possible to easily control the temperature of the atomizing tip portion to prevent excessive condensation on the atomizing tip portion, and it is possible to adjust the size or amount of droplets condensed on the atomizing tip portion. Therefore, it can spray stably and can improve reliability further. In addition, since the temperature of the atomization tip can be individually adjusted, the temperature of the atomization tip and the electrode connection member can be reliably raised within an appropriate range without causing the temperature of the atomization tip and the electrode connection member to rise more than necessary. it can.

  This also eliminates the need for complicated structures such as a defrost water hose and purification filter for supplying water for mist spraying, or a dedicated tank and water transport means and its route, and a water supply route directly connected to the water supply. The amount of water to be atomized can be adjusted with a simple configuration.

  In addition, excessive mist in the storage chamber can easily and reliably condense on the atomizing electrode, and fine mist with adjusted water volume is generated, and the sprayed fine mist adheres uniformly to the surface of vegetables and other fruits and vegetables. Therefore, transpiration from the fruits and vegetables can be suppressed, and the freshness can be improved. Moreover, it can penetrate | invade in a structure | tissue from the cell space | gap, pores, etc. on the surface of fruit and vegetables, and a water | moisture content is supplied to the deflated cell, It can return to a crispy state.

  Moreover, the adjustment means for adjusting the amount of water adhering to the atomizing tip has a cooling means and a heating means.

  As a result, the temperature of the atomizing tip can be easily adjusted by combining the cooling means and the heating means. Therefore, the discharge is stabilized by adjusting the amount of water adhering to the atomizing tip to an appropriate range. Mist can be stably sprayed, and excessive condensation at the tip of the atomization can be prevented and the reliability of the atomization can be improved. Can be provided.

  Even if a low temperature droplet remains at the tip of the atomization electrode, the surface temperature of the droplet can be lowered by raising the liquid temperature by the heating means, and thus it can be finely applied by applying a high voltage with a low voltage. Energy can be saved because mist can be generated.

  The cooling means is a cooling source generated in the refrigeration cycle of the refrigerator, and the heating means is a heater integrated with the atomizing section.

  Thereby, since the fine mist can be supplied to the storage chamber with a simple configuration by effectively using the cooling source generated in the refrigeration cycle of the refrigerator, the reliability of the atomization unit can be improved. In addition, since an apparatus and electric power are not separately required for the cooling means, it is possible to realize mist spraying with a simple configuration and material saving and energy saving.

  In addition, the atomization tip can be heated individually via the electrode connection member regardless of the operating state of the refrigerator (temperature control of each room), so the atomization tip is more efficient and energy saving. The temperature of the part can be adjusted.

  In addition, since the heating means of the adjusting means is a heater in order to prevent excessive condensation at the atomizing tip, it becomes possible to easily control the temperature of the tip temperature of the atomizing tip. Since the size or amount of the condensed droplets can be adjusted, the droplets can be stably sprayed and the reliability can be further improved.

  The invention according to claim 2 is the invention according to claim 1, in which the refrigerator main body has a plurality of storage rooms, a cooling room for storing a cooler for cooling the storage room, the cooling room, and the A partition wall for insulating and partitioning the storage chamber, and the atomizing section is attached to the partition wall on the cooling chamber side.

  This makes it possible to use cold air or cold air that is generated in the cooling room that is the coldest of the cold air that is cooled using the cooling source generated in the refrigerator refrigeration cycle, and that is transported by a fan, etc., heat conduction, heat pipes, etc. A member such as a pipe or a refrigerant pipe can be used as a cooling means. Since the cooling means can be configured with such a simple structure, it is possible to realize an atomizing section with few failures and high reliability. Moreover, since the atomization electrode can be cooled through the electrode connecting member using the cooling source of the refrigeration cycle, atomization can be performed with energy saving.

  In addition, by attaching the atomizing part to the partition wall, the atomizing part is installed at a position where the gap is effectively used without making a large business trip in the storage chamber, and the storage volume is not reduced. Since it cannot be easily touched by human hands, safety is improved.

  The invention according to claim 3 is the invention according to claim 1 or 2, wherein the refrigerator main body has a plurality of storage rooms, and the atomizing part is provided on the top side of the storage room provided with the atomizing part. A low-temperature storage chamber maintained at a lower temperature than the storage chamber provided with the above-mentioned is provided, and the atomizing section is attached to a partition wall on the top surface side of the storage chamber including the atomizing section.

  As a result, when the storage room of the freezing temperature zone such as a freezing room or ice making room is at the upper part, it is installed on the partition wall of the top surface that divides them, and it is fogged via the electrode connection member of the atomizing section at its cooling source. Since the atomization electrode can be cooled and condensed, no special cooling device is required, and the atomization part can be provided with a simple configuration, so that an atomization part with few failures and high reliability can be realized. Can do. Further, mist spraying can be realized with energy saving.

  Moreover, since it can spray from a top | upper surface, it is easy to spread | diffuse to the whole storage container, and since it is hard to touch a human hand, safety can be improved.

  According to a fourth aspect of the present invention, in addition to the invention according to any one of the first to third aspects, the refrigerator main body has at least one air passage for conveying cold air to the storage room or the cooling room. The cooling means provided in the adjusting means uses cold air generated in the cooling chamber.

  Thereby, it can prevent that an atomization front-end | tip part is cooled extremely by cooling an atomization front-end | tip part via an electrode connection member by indirect heat conduction using cold air. When the atomization tip is extremely cooled, if the amount of condensation increases accordingly, the surface area of the input droplet to the atomization part increases due to an increase in the load of the atomization part, and the surface tension increases accordingly. There is concern about the atomization failure of the atomization part because it cannot be miniaturized due to electrostatic force, but it can prevent problems due to the increase in load of the atomization part, and can secure an appropriate amount of condensation. Stable mist spraying can be realized with low input.

  In addition, since the cooling means can be configured with a simple structure, an atomizing section with few failures and high reliability can be realized. Furthermore, since the atomization electrode can be cooled via the electrode connection member using the cooling source of the refrigeration cycle, the atomization can be performed by condensing water droplets on the atomization tip with more energy saving.

  The invention according to claim 5 is the invention according to any one of claims 1 to 4, and the atomizing portion includes an atomizing electrode and a counter electrode disposed at a position facing the atomizing electrode. And a voltage application unit that generates a high-voltage potential difference between the atomizing electrode and the counter electrode.

  By this, the electric field in the vicinity of the atomization electrode can be stably constructed, the atomization phenomenon and the spraying direction are determined, the accuracy of the fine mist sprayed in the storage container can be further increased, and the accuracy of the atomization part is improved. Can do.

  In addition, it is possible to easily and surely condense condensation from excess water vapor in the storage chamber to the atomizing electrode, and by applying a high pressure to the atomizing electrode, nano-level fine mist is generated, and this fine mist is sprayed into the storage chamber. By being diffused, it adheres uniformly to the surface of fruits and vegetables such as vegetables, and the freshness of food can be improved.

  Furthermore, although the generated fine mist is sprayed, it is very diffusible because it is very small particles, and the fine mist reaches the entire storage container. Since the fine mist to be sprayed is generated by a high-voltage discharge, it has a negative charge. Therefore, the fine mist atomized for vegetables with a positive charge is generally deposited on the vegetable surface. It is easy to gather, and this adheres to the vegetable surface and improves freshness.

  In addition to the invention described in claim 5, the invention described in claim 7 includes a storage chamber and a holding member provided in the storage chamber and grounded to a reference potential portion, and the voltage application unit is an atomizing electrode. And a potential difference between the holding member and the holding member.

  Thereby, even if it does not have a counter electrode in particular, by providing a grounded holding member on a part of the storage chamber side, it is possible to generate a potential difference from the atomizing electrode, and to perform mist spraying. By configuring a stable electric field, the spray can be stably sprayed from the atomizing section.

  Further, when the holding member is attached to the storage container side, since the entire storage container is at the reference potential, the sprayed mist can diffuse to the entire storage container. Further, charging to surrounding objects can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. The same reference numerals are given to the same configurations as those of the conventional example or the embodiments described above, and detailed descriptions thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1 is a longitudinal sectional view of the refrigerator in the first embodiment of the present invention. FIG. 2 is a front view of the vicinity of the vegetable compartment of the refrigerator in the first embodiment of the present invention. FIG. 3 is a detailed cross-sectional view of the vicinity of the electrostatic atomizer in the AA portion of FIG. FIG. 4 is a diagram showing an experimental result showing a discharge current monitor voltage value indicating the temperature behavior and atomization state of the atomizing electrode in the first embodiment of the present invention. FIG. 5 is a diagram showing an experimental result showing an appropriate dew condensation range obtained from the correlation between the atomizing electrode temperature and the atomizing electrode vicinity humidity in the first embodiment of the present invention. FIG. 6 is a diagram showing an example of a control flow in the first embodiment of the present invention.

  In the figure, the heat insulating box 101 of the refrigerator 100 is mainly composed of an outer box 102 using a steel plate and an inner box 103 formed of a resin such as ABS, and inside thereof, for example, a foam heat insulating material such as hard foam urethane, Filled and embedded with vacuum insulation. As a result, the storage chamber is insulated and simultaneously divided into a plurality of storage chambers. A refrigerator room 104 as a first storage room is provided at the top of the refrigerator 100, and a switching room 105 as a fourth storage room and an ice making room 106 as a fifth storage room are provided side by side under the refrigerator room 104. A vegetable room 107 as a second storage room is formed below the switching room 105 and the ice making room 106, and a freezing room 108 as a third storage room is formed at the bottom.

  The refrigerated room 104 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage, and the vegetable room 107 is set to 2 ° C. to 7 ° C., which is set at a temperature that is the same as or slightly higher than that of the refrigerated room 104. The freezer compartment 108 is set in a freezing temperature zone, and is usually set at −22 ° C. to −15 ° C. for frozen storage, but for example, −30 ° C. or −25 ° C. to improve the frozen storage state. It may be set at a low temperature. The switching chamber 105 is not only refrigerated set at 1 ° C to 5 ° C, vegetable set at 2 ° C to 7 ° C, and frozen at a temperature set at -22 ° C to -15 ° C. It is possible to switch to a preset temperature range between the freezing temperature ranges. The switching room 105 is a storage room provided with an independent door arranged in parallel with the ice making room 106, and is often provided with a drawer type door. In this embodiment, the switching chamber 105 is a storage room including the refrigeration and freezing temperature zones, but the refrigeration is performed in the refrigeration room 104, the vegetable room 107, and the freezing is performed in the freezing room 108. A storage room specialized for switching only the intermediate temperature range may be used. A storage room fixed at a specific temperature range may also be used. The ice making chamber 106 creates ice with an automatic ice maker (not shown) provided in the upper part of the room with water sent from a water storage tank (not shown) in the refrigerated room 104, and an ice storage container ( (Not shown).

  The top surface portion of the heat insulating box 101 has a stepped recess in the rear direction of the refrigerator. A machine chamber is formed in the stepped recess to form a compressor 109 and a dryer for removing moisture (not shown). The high-pressure side components of the refrigeration cycle are accommodated. That is, the machine room in which the compressor 109 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 104.

  Therefore, in a conventional refrigerator (a refrigerator of a type in which a machine room is provided in the rear region of the lowermost storage chamber of the heat insulation box 101 and the compressor 109 is disposed), it is difficult to reach and is a dead space. By providing a machine room in the rear region of the uppermost storage room of the heat insulation box 101 and disposing the compressor 109, the conventional refrigerator has the space of the machine room at the lowermost part of the heat insulation box 101 as a storage room capacity. Can be effectively converted, and it is easy for the user to use, and can greatly improve storage and usability. In the present embodiment, the matter relating to the main part of the invention described below is a type in which a compressor room is provided by providing a machine room in the rear region of the lowermost storage room of the heat insulating box 101, which has been generally used conventionally. It may be applied to other refrigerators.

  A cooling chamber 110 for generating cold air is provided on the back of the vegetable chamber 107 and the freezing chamber 108, and a cooling air conveyance path to each chamber having heat insulation properties and heat insulation for partitioning from each chamber are provided therebetween. A rear partition wall 111 made of a material is provided. In the cooling chamber 110, a cooler 112 is disposed, and in the upper space of the cooler 112, the cold air generated by the cooler 112 by a forced convection method is stored in the refrigerator 104, the switching chamber 105, the ice making chamber 106, the vegetables. A cooling fan 113 for blowing air to the chamber 107 and the freezing chamber 108 is disposed, and a radiant heater made of glass tube for defrosting the frost and ice adhering to the cooler 112 and its surroundings at the time of cooling in the lower space of the cooler 112 114, and a drain pan 115 for receiving defrost water generated at the time of defrosting, and a drain tube 116 penetrating from the deepest part to the outside of the chamber are configured at the lower portion thereof, and the evaporating dish 117 is disposed outside the downstream side of the chamber. Is configured.

  In the vegetable compartment 107, a lower storage container 119 placed on a frame attached to the drawer door 118 of the vegetable compartment 107 and an upper storage container 120 placed on the lower storage container 119 are arranged.

  A lid 122 mainly for substantially sealing the upper storage container 120 in a state where the drawer door 118 is closed is held by the first partition wall 123 and the inner box 103 at the upper part of the vegetable compartment. In the state where the drawer door 118 is closed, the left and right sides and the back side of the upper surface of the lid body 122 and the upper storage container 120 are in close contact with each other, and the front side of the upper surface is substantially in close contact. Further, the left and right lower sides of the back surface of the upper storage container 120 and the boundary between the lower storage container 119 have a gap so that the moisture of the food storage section does not escape as long as the upper storage container 120 is movable and does not contact.

  Between the lid body 122 and the first partition wall 123, there is provided an air passage for the cold air discharged from the vegetable room discharge port 124 formed in the rear partition wall 111. Further, a space is also provided between the lower storage container 119 and the second partition wall 125 to constitute a cold air passage. Under the rear partition wall 111 located on the back side of the vegetable compartment 107, there is provided a vegetable compartment suction port 126 for cooling the inside of the vegetable compartment 107 and returning the heat-exchanged cold air to the cooler 112. .

  It should be noted that the matters relating to the main part of the invention described below in the present embodiment may be applied to a refrigerator that is opened and closed by a frame attached to a door and a rail provided in an inner box, which has been conventionally common. I do not care. Moreover, about the cover body 122, the vegetable compartment discharge port 124, the suction inlet 126, and an air path structure, they are optimized by the form of a storage container.

  The rear partition wall 111 includes a rear partition wall surface 151 mainly using a resin such as ABS, an air passage for circulating cold air to each chamber using a polystyrene foam, and between the cooling chamber 110 and the vegetable chamber 107. It is comprised with the heat insulating material 152 which isolates and secures heat insulation. Here, a recess 111a is provided in a part of the wall on the storage compartment side of the rear partition wall 111 so as to be cooler than other parts, and an electrostatic atomizer 131 that is an atomizer is installed in that part. Yes.

  The electrostatic atomizer 131 that is an atomizer is mainly composed of an atomizer 139, a voltage applying unit 133, and an outer case 137, and a spray port 132 and a humidity supply port 138 are configured in part of the outer case 137. Has been.

  The atomization part 139 is provided with an atomization electrode 135 which is an atomization tip part, and the atomization electrode 135 is electrically connected by a wiring from the high voltage generation circuit 160 and is a heat-conductive member such as aluminum or stainless steel. The cylindrical metal pin 134, which is an atomizing electrode connection member made of In addition, the periphery of the electrical connection portion is molded with a resin such as an epoxy resin to prevent long-term heat conduction and intrusion of humidity and the like into the electrical connection portion, while suppressing thermal resistance. The metal pin 134 which is an atomization electrode connection member is fixed. In order to reduce the thermal resistance, the atomizing electrode 135 may be fixed to the metal pin 134 which is an atomizing electrode connecting member by press fitting or the like.

  The metal pin 134 which is an atomizing electrode connecting member is formed in a cylindrical shape having a diameter of about 10 mm and a length of about 15 mm, for example, and is 50 compared to the atomizing electrode 135 having a diameter of about 1 mm and a length of about 5 mm. A highly heat conductive member such as aluminum or copper having a large heat capacity of 100 times or more, preferably 100 times or more is preferable. In order to efficiently conduct cold heat from one end of the metal pin 134 which is an atomizing electrode connecting member to the other end by heat conduction. It is desirable that the periphery is covered with a heat insulating member.

  Furthermore, since the metal pin 134 which is an atomization electrode connection member needs to conduct heat and cold in a heat insulating material for insulating the storage chamber and the cooler 112 or the air passage, its length is preferably 5 mm or more. It is desirable to ensure 10 mm or more. However, when the length is 30 mm or more, the effect is reduced.

  In addition, since the electrostatic atomizer 131 installed in the storage room is in a high humidity environment, the humidity may affect the metal pin 134 which is the atomization electrode connection member. For a certain metal pin 134, it is preferable to select a metal material having corrosion resistance and rust resistance performance, or a material subjected to surface treatment or coating such as alumite treatment.

  In the present embodiment, since the metal pin 134 has a cylindrical shape, when fitting into the recess 111a of the heat insulating material 152, the electrostatic atomizer 131 is pressed and attached while rotating even if the fitting size is slightly tight. Therefore, the metal pin 134 can be attached without a gap. Further, the shape of the metal pin 134 may be a rectangular parallelepiped or a regular polygon. In the case of these polygons, positioning is easier than in the case of a cylinder, and the atomization device can be provided at an accurate position.

  Further, when the metal pin 134 is attached by attaching the atomizing electrode 135 on the central axis of the metal pin 134, the distance between the counter electrode 136 and the atomizing electrode 135 can be kept constant even when rotated. A distance can be secured.

  The metal pin 134 as an atomizing electrode connecting member is fixed to the outer case 137, and the metal pin 134 itself as an atomizing electrode connecting member is configured to protrude from the outer case 137. Also, a donut disk-shaped counter electrode 136 is attached to the storage chamber side at a position facing the atomizing electrode 135 so as to maintain a certain distance from the tip of the atomizing electrode 135, and a spray port 132 is formed on the extension. It is configured.

  In the vicinity of the atomizing electrode 135, discharge due to the application of a high voltage occurs due to mist spraying, and thus there is a possibility that wear will occur at the tip of the atomizing electrode 135. The refrigerator 100 generally operates for a long time of 10 years or more, and the surface of the atomizing electrode 135 needs to have a tough surface treatment to ensure wear resistance. For example, nickel plating and gold plating It is desirable to use platinum plating. In addition, the electrical joint between the atomizing electrode 135 and the voltage application unit 133 is connected by caulking, press fitting, or the like, and the periphery of the electrical joint is molded with a resin such as an epoxy resin. As a result, it is possible to prevent leakage, abnormal heat generation, and the like caused by poor attachment between the atomizing electrode 135 and the electrical connection portion, and to ensure safety. Moreover, since material deterioration due to moisture intrusion can be prevented, the reliability of the components is improved.

  Further, a voltage application unit 133 is configured in the vicinity of the atomization unit 139, and the negative potential side of the voltage application unit 133 that generates a high voltage is electrically connected to the atomization electrode 135 and the positive potential side is electrically connected to the counter electrode 136, respectively. Yes.

  The counter electrode 136 is made of, for example, stainless steel, and it is necessary to ensure its long-term reliability. In particular, in order to prevent foreign matter adhesion and contamination, it is desirable to perform surface treatment such as platinum plating.

  The voltage application unit 133 is communicated and controlled with the control means 146 of the refrigerator 100 main body, and performs high voltage ON / OFF by an input signal from the refrigerator 100 or the electrostatic atomizer 131.

  Further, the voltage application unit 133 is installed in the electrostatic atomizer 131 and becomes a low-temperature and high-humidity atmosphere in the storage chamber. Therefore, a mold material or a coating material for moisture prevention is applied on the surface of the substrate.

  However, when the voltage application part is installed in a high temperature part outside the storage room, it is possible to eliminate the coating material.

  Further, a partition wall heater 154 for adjusting the temperature of the storage room or preventing condensation on the surface is provided between the rear partition wall surface 151 fixing the electrostatic atomizer 131 and the heat insulating material 152. is set up. Furthermore, in order to prevent the temperature adjustment of the metal pin 134 which is the atomization electrode connecting member provided in the electrostatic atomizer 131 and the excessive dew condensation and freezing of the peripheral part including the atomization electrode 135 which is the atomization tip part. As a heating means, a heater 158 which is a resistance heating element such as a chip resistor is integrated with the electrostatic atomizer 131 on the end surface 134b on the convex portion 134a side of the metal pin 134 which is an atomizing electrode connection member in the vicinity of the atomizing portion 139. Is provided. Further, in order to detect the temperature of the tip of the atomizing electrode 135, temperature detecting means such as a thermistor 159 is provided on the side closer to the atomizing electrode 135 of the metal pin 134 which is an atomizing electrode connecting member.

  The metal pin 134 as the atomizing electrode connecting member is fixed to the outer case 137, and the metal pin 134 itself as the atomizing electrode connecting member has a convex portion 134a protruding from the outer case. The metal pin 134 as the atomizing electrode connecting member has a shape having a convex part 134a on the opposite side to the atomizing electrode 135, and the convex part 134a fits into the deepest concave part 111b deeper than the concave part 111a of the rear partition wall 111. Has been.

  Therefore, the deepest concave portion 111b that is deeper than the concave portion 111a is provided on the back side of the metal pin 134 that is the atomizing electrode connecting member. That is, the heat insulating material 152 is located on the back side of the vegetable chamber 107 on the cooling chamber 110 side. It is thinner than other portions of the surface partition wall 111, and this thin heat insulating material 152 is used as a heat relaxation member, and the cold air or warm air in the cooling chamber 110 from the back surface through the heat insulating material 152 as the heat relaxation member, or resistance. The heater 158 that is a heating element is used as a heating source so that the metal pin 134 that is an atomizing electrode connecting member is cooled or heated.

  Moreover, the cooling of the metal pin 134 which is an atomization electrode connection member uses the cool air produced | generated in the cooling chamber 110, and the metal pin 134 which is an atomization electrode connection member was formed with the metal piece with favorable heat conductivity. Therefore, the cooling means can perform the required cooling only by heat conduction from the air passage through which the cold air generated by the cooler 112 flows. Further, the heating means heats the metal pin 134 as the atomizing electrode connecting member using the warm air generated during the defrosting operation of the refrigerator 100 and the heater 158 as the resistance heating element as a heating source, and at the tip of the atomizing electrode 135. Control is performed so that the input of the heater 158, which is a resistance heating element, can be varied or the energization rate can be changed according to the temperature detected by temperature detecting means such as a thermistor 159 provided to detect the temperature. This prevents excessive dew condensation and freezing of the peripheral part including the atomizing electrode 135 which is the atomizing tip part, and can adjust the amount of condensation supplied to the atomizing electrode 135 which is the atomizing tip part. Atomization can be realized.

  Since the adjusting means can be configured with such a simple structure, it is possible to realize an atomizing section with few failures and high reliability. Moreover, since the atomization electrode 135 can be cooled through the metal pin 134 which is an electrode connection member using the cooling source of a refrigerating cycle, it can atomize with energy saving.

  At this time, since the metal pin 134 which is the atomizing electrode connecting member of the present embodiment has a shape having the convex portion 134a on the opposite side to the atomizing electrode, the convex portion 134a side in the atomizing portion. Since the end portion 134b of the metal pin 134 is closest to the cooling means or heating means, the metal pin 134 that is the atomizing electrode connecting member is cooled or heated by the adjusting means from the end portion 134b farthest from the atomizing electrode 135. Become. Furthermore, a heater 158 that is a resistance heating element such as a chip resistor is atomized in the vicinity of the atomizing portion 139 as a heating means for preventing excessive dew condensation and freezing of the peripheral portion including the atomizing electrode 135 that is the atomizing tip portion. A temperature detecting means such as a thermistor 159 is provided integrally with the electrostatic atomizer 131 on the end surface 134b on the convex portion 134a side of the metal pin 134, which is an electrode connecting member, and detects the temperature of the tip of the atomizing electrode 135. Since the metal pin 134 that is the atomizing electrode connecting member is provided closer to the atomizing electrode 135, the temperature of the metal pin 134 that is the atomizing electrode cooling means in the refrigeration cycle state (temperature control state) of the refrigerator 100. Suppresses fluctuations, prevents excessive dew condensation and freezing around the atomization electrode 135, which is the atomization tip, and adjusts the amount of condensation supplied to the atomization electrode 135, which is the atomization tip. Since it is possible to achieve a more stable atomization.

  Further, as described above, the heat insulating material 152 covers at least the cooling means side of the metal pin 134 that is the atomizing electrode connecting member as a heat relaxation member, but preferably the projection 134a of the metal pin that is the atomizing electrode connecting member. It is desirable to cover almost the entire surface. In this case, heat penetration from the lateral direction perpendicular to the longitudinal direction of the metal pin 134 as an atomizing electrode connecting member is reduced, and from the end portion 134b side on the convex portion 134a side. Since heat transfer is performed in the longitudinal direction, the metal pin 134 as an atomizing electrode connecting member is cooled or heated by the adjusting means from the end portion 134b farthest from the atomizing electrode 135.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  First, the operation of the refrigeration cycle will be described. The refrigeration cycle is operated by a signal from the control means in accordance with the set temperature in the refrigerator, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 109 is condensed to some extent by a condenser (not shown), and is further provided on the side surface and back surface of the refrigerator 100 main body and the front opening of the refrigerator 100 main body. It condenses and liquefies while preventing condensation of the main body of the refrigerator 100 via piping (not shown) and reaches a capillary (not shown). Thereafter, the capillary is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 109 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 112. Here, the low-temperature and low-pressure liquid refrigerant exchanges heat with the air in each storage chamber by the operation of the cooling fan 113, and the refrigerant in the cooler 112 evaporates. At this time, cool air for cooling each storage chamber is generated in the cooling chamber 110. The low-temperature cold air is diverted from the cooling fan 113 to the refrigerating room 104, the switching room 105, the ice making room 106, the vegetable room 107, and the freezing room 108 using an air passage or a damper, and cooled to respective target temperature zones. In particular, the vegetable compartment 107 cools the refrigerator compartment 104 and then discharges it to the vegetable compartment 107 from a vegetable compartment outlet 124 formed in the middle of the refrigerator compartment return air passage for circulating the air to the cooler 112. Then, the air flows through the outer peripheries of the upper storage container 120 and the lower storage container 119 to indirectly cool, and then returns to the cooler 112 again from the vegetable room suction port 126. In addition, the temperature control of the vegetable compartment 107 is performed by ON / OFF operation of the distribution of cold air and the partition wall heater 154 provided on the partition wall, and adjusted to 2 ° C to 7 ° C by these controls. Has been. In general, there are many that do not have an internal temperature detection means.

  A recess is formed in the back partition wall 111 installed in the back of the vegetable compartment 107, and an electrostatic atomizer 131 is attached to this portion. Here, the rear of the metal pin 134 which is the atomizing electrode connecting member which is the atomizing portion 139 has the deepest concave portion 111b, and the thickness of the heat insulating material thinner than the others is, for example, about 2 mm to 10 mm, which is lower than other portions. It becomes a state. In the refrigerator of the present embodiment, this thickness is appropriate as a heat relaxation member positioned between the metal pin that is the atomizing electrode connecting member and the adjusting means. That is, the rear surface partition wall 111 has a concave portion 111a, and the electrostatic atomizer 131 has a shape in which the convex portion 134a of the metal pin 134 as an atomizing electrode connecting member protrudes into the deepest concave portion 111b on the rearmost surface of this portion. Is fitted and attached.

  Cold air is generated by the cooler 112 by the operation of the refrigeration cycle, and cold air of about −15 to −25 ° C. is discharged by the cooling fan 113 to the freezing chamber discharge air passage 141 on the back surface of the metal pin 134 that is the atomizing electrode connecting member. The metal pin 134 which is an atomization electrode connection member is cooled to about 0 to -10 degreeC by heat conduction from the air path surface. At this time, since the metal pin 134 as the atomizing electrode connecting member is a good heat conducting member, it is very easy to transmit cold heat, and the atomizing electrode 135 fixed to the metal pin 134 as the atomizing electrode connecting member is also fogged. It cools to about 0 to -10 degreeC through the metal pin 134 which is a chemical electrode connection member.

  Here, the vegetable room is 2 ° C to 7 ° C and maintains a relatively high humidity state due to transpiration from vegetables, etc., so the atomization electrode 135 which is the atomization tip is below the dew point and includes the tip. Water is generated on the crystallization electrode 135 and water droplets adhere thereto.

  Although not shown here, by installing an internal temperature detection unit, an internal humidity detection unit, or the like in the storage, the dew point can be determined strictly in accordance with changes in the internal environment by a predetermined calculation.

  A high voltage (for example, 4 to 10 kV) is applied between the electrodes by the voltage application unit 133 with the atomizing electrode 135 to which water droplets are attached as the negative voltage side and the counter electrode 136 as the positive voltage side. At this time, corona discharge occurs between the electrodes, the water droplets at the tip of the atomizing electrode 135 are refined by electrostatic energy, and since the droplets are charged, they have an invisible charge of several nm level due to Rayleigh splitting. Nano-level fine mist and accompanying ozone and OH radicals are generated. The voltage applied between the electrodes is a very high voltage of 4 to 10 kV, but the discharge current value at that time is several μA, and the input is 0.5 to 1.5 W, which is a very low input. The effect on the internal temperature is minimal.

  Specifically, when the atomizing electrode 135 is set to the reference potential side (0 V) and the counter electrode 136 is set to the high voltage side (+7 kV), the condensed water adhering to the tip of the atomizing electrode 135 is attracted to the tip of the atomizing electrode 135 and the tailor cone. Is formed, and the distance from the counter electrode 136 approaches, whereby the air insulating layer is destroyed and discharge starts. At this time, the dew condensation water is charged, and the electrostatic force generated on the droplet surface exceeds the surface tension, and fine particles are generated. Furthermore, since the counter electrode 136 is on the plus side, the charged fine mist is attracted, the fine particles are further micronized by Rayleigh splitting, and the nano-level fine mist with radicals containing invisible charges of several nm level is generated. The counter electrode 136 is attracted and fine mist is sprayed toward the storage chamber by its inertial force.

  When there is no water in the atomizing electrode 135, the discharge distance is increased, the air insulating layer cannot be destroyed, and the discharge phenomenon does not occur. In addition, when there is excessive dew condensation and excessive moisture, the electrostatic energy for refining the water droplets cannot overcome the surface tension and the discharge phenomenon does not occur. As a result, no current flows between the atomizing electrode 135 and the counter electrode 136.

  The experimental results in the above are shown in FIG. 4 and FIG.

  In FIG. 4, the horizontal axis represents time, and the vertical right axis represents the discharge current monitor voltage value obtained by converting the discharge current value flowing between the atomizing electrodes (135, 136) during discharge into a voltage. The discharge current monitor voltage value is The voltage value is set to be lowered and output only when a current flows between the electrodes, that is, when a discharge phenomenon occurs and fine mist is generated.

  In the refrigerator 100, when the temperature of the cooler 112 starts to drop, that is, when the operation of the refrigeration cycle starts, the cooling of the vegetable compartment 107 also starts. At this time, since cold air also flows through the vegetable compartment 107, it becomes dry and the atomizing electrode 135 also tends to dry.

  Next, when the refrigerating room damper (not shown) is closed, the refrigerating room discharge air temperature rises, and the temperature and humidity of the refrigerating room 104 and the vegetable room 107 rise. At this time, since the freezing chamber discharge cold air temperature gradually decreases, the metal pin 134 that is the atomizing electrode connecting member is further cooled and the atomizing electrode of the atomizing unit 139 installed in the vegetable chamber 107 in a high humidity environment. 135 tends to cause condensation. Then, a droplet grows at the tip of the atomizing electrode 135, and when the distance between the tip of the droplet and the counter electrode 136 reaches a certain distance, the air insulating layer is destroyed, and a discharge phenomenon starts. Mist is sprayed. At this time, since a minute current flows between the electrodes, the discharge current monitor voltage value decreases as shown in the waveform of FIG. Thereafter, the compressor 109 is stopped, the cooling fan 113 is stopped, and the temperature of the metal pin 134 as the atomizing electrode connecting member rises, but the atmosphere of the atomizing portion 139 continues to be highly humid, and the atomizing electrode connecting member The atomization is continued because the heat capacity of the metal pin 134 is so large that it does not undergo a rapid temperature fluctuation and functions as a so-called cold storage.

  Then, when the compressor 109 starts operation again, the refrigerator compartment damper (not shown) is opened and the cold air begins to be conveyed to each storage chamber by the cooling fan, and the storage chamber shifts to a low humidity state, whereby the atomizing section is also installed. It becomes a low humidity state, the atomizing electrode 134 is dried, and the droplets of the atomizing electrode 134 are reduced or disappeared.

  Furthermore, the metal pin 134 which is an atomization electrode connection member using the heater 158 which is a resistance heating element provided on the end surface 134b on the convex portion 134a side of the metal pin 134 which is an atomization electrode connection member in the vicinity of the atomization portion 139 as a heating source. And the input of the heater 158, which is a resistance heating element, is controlled to be variable or the energization rate is changed according to the temperature detected by temperature detecting means such as the thermistor 159 provided to detect the temperature at the tip of the atomizing electrode 135. Therefore, the peripheral portion including the atomization electrode 135 which is the atomization tip portion is suppressed by suppressing the temperature fluctuation of the metal pin 134 which is the atomization electrode cooling means in the state of the refrigerating cycle of the refrigerator 100 (temperature control state). In addition to preventing excessive condensation and freezing, the amount of condensation supplied to the atomizing electrode 135, which is the atomizing tip, can be adjusted, so that stable atomization can be realized. Kill.

  During normal cooling of the refrigerator, such a cycle is periodically repeated, and the input of the heater 158, which is a resistance heating element, is controlled to be variable or the energization rate is changed according to the temperature detected by temperature detecting means such as the thermistor 159. Thus, the droplets at the tip of the atomizing electrode are adjusted within a certain range to realize further stable atomization.

  Furthermore, by controlling the phase of the input of the heater 158, which is a resistance heating element, fine control is possible and more optimal temperature control is possible.

  Here, the temperature of the cooler 112 exceeds 0 ° C. during defrosting by melting and removing frost and ice attached to the cooler 112. At this time, the temperature of the discharge air passage in the freezer compartment on the back of the electrostatic atomizer also rises, and along with this temperature rise, the metal pin 134 as the atomizing electrode connecting member is also heated, and the temperature of the atomizing electrode 135 also rises. The condensed water adhering to the tip evaporates and the atomizing electrode is dried.

  Further, since the defrost heater has a characteristic that the temperature of the cooler rises to some extent and is cut, the temperature of the tip of the atomizing electrode 135 and the metal pin 134 that is the atomizing electrode connecting member does not rise too much. There is an effect that the temperature of the tip of the atomizing electrode 135 and the metal pin 134 which is the atomizing electrode connecting member can be reliably increased within an appropriate range. Further, by controlling the input of the heater 158, which is a resistance heating element, to be variable or to change the energization rate according to the temperature detected by temperature detecting means such as the thermistor 159, more stable temperature control is possible.

  In order to prevent excessive condensation or freezing, it is also possible to reset (dry) the condensation state at the tip of the atomizing electrode 135 by periodically increasing the input or energization rate of the heater 158 which is a resistance heating element.

  When the actual use state of the refrigerator 100 is taken into consideration, the humidity state and the humidification amount of the vegetable compartment 107 change depending on the environment used, the opening / closing operation, and the food storage state. It can be assumed that the amount is excessive, and in some cases, the droplets are so large as to cover the entire atomizing electrode 135, and the electrostatic energy due to the discharge cannot exceed the surface tension, and cannot be atomized. Therefore, when the refrigerating chamber damper is opened, the atomizing electrode 135 is heated by energizing the heater 158 which is a resistance heating element as a heating means in addition to dehumidification by cold air. This promotes evaporation of water droplets adhering to it, promotes mist spraying by reducing the surface tension of the droplets, prevents excessive condensation, and atomizes continuously and stably. be able to. Moreover, droplets grow due to excessive dew condensation, and quality deterioration due to dripping of the back partition wall 111 or the like can be prevented.

  As described above, the atomizing electrode 135 uses the refrigeration cycle of the refrigerator 100 to repeat condensation and drying as shown in FIG. This adjusts the amount of water at the tip of the atomizing electrode, prevents excessive condensation, and realizes continuous atomization.

  Moreover, the atomization electrode 135 can be indirectly cooled by cooling the metal pin 134 which is an atomization electrode connection member, without directly cooling the atomization electrode 135, and the metal which is an atomization electrode connection member Since the pin 134 has a larger heat capacity than the atomizing electrode 135, it is possible to relieve the direct influence on the atomizing electrode 135, to cool the atomizing electrode 135, and to play a role of cold storage. As a result, a rapid temperature fluctuation of the atomizing electrode 135 can be suppressed, and a mist spray with a stable spray amount can be realized.

  In addition, by providing a counter electrode 136 disposed at a position facing the atomizing electrode 135 and having a voltage application unit 133 that generates a high-voltage potential difference between the atomizing electrode 135 and the counter electrode 136, Since the electric field can be stably constructed, the atomization phenomenon and the spraying direction are determined, the precision of the fine mist sprayed in the storage container can be further improved, the precision of the atomizing section 139 can be improved, and the reliability is high. An electrostatic atomizer 131 can be provided.

  Furthermore, since the metal pin 134 as the atomizing electrode connecting member is cooled via the heat relaxation member (152), the atomizing electrode 135 is indirectly connected with the metal pin 134 as the atomizing electrode connecting member as described above. In addition to the cooling, it can be indirectly cooled with a double structure through a heat insulating material 152 which is a heat relaxation member, and the atomization electrode 135 can be prevented from being extremely cooled. If the temperature of the atomizing electrode 135 is lowered by 1K, the water generation speed at the tip thereof increases by about 10%. However, when the atomization electrode 135 is extremely cooled, the condensation speed becomes abrupt, and the amount of condensation increases accordingly, and the increase in the input to the electrostatic atomizer 131 and the atomization due to the increase in the load of the atomization unit 139. There is a concern about freezing and atomization failure of the part 139, but it is possible to prevent problems due to such an increase in the load of the atomization part 139, to ensure an appropriate amount of condensation, and to achieve stable mist with low input. Spraying can be realized.

  The shape of the metal pin 134, which is an atomizing electrode connection member, is preferably a cylindrical shape in consideration of assemblability. To be precise, a rectangular parallelepiped or a regular polygon may be used, but when the cylinder is fitted into the recess of the heat insulating material, the electrostatic atomizer 131 can be attached while being inclined. Conversely, in the case of a polygon, positioning is easier than a cylinder.

  Further, by attaching the atomizing electrode 135 on the central axis of the metal pin 134 as the atomizing electrode connecting member, the counter electrode 136 and the atomizing electrode can be rotated even when the metal pin 134 as the atomizing electrode connecting member is rotated. The distance 135 can be kept constant, and a stable discharge distance can be secured.

  In addition, when the atomizing electrode 135 is extremely heated, the temperature of the storage chamber around the voltage applying unit 133 and the atomizing unit 139 rapidly increases, and there is a problem such as failure of electrical parts or cooling failure due to the temperature rise of stored items. Although it occurs, it is possible to prevent problems due to the temperature rise of the atomizing section 139, to secure an appropriate amount of condensation, and to realize a stable mist spray with low input.

  Moreover, the temperature change of the adjustment means is atomized electrode by indirectly adjusting the temperature of the atomizing electrode 135 in a double structure through the metal pin 134 as the atomizing electrode connecting member and the heat relaxation member (152). Since it is possible to further alleviate the direct influence on the mist, it is possible to suppress the load fluctuation of the atomizing electrode and realize a mist spray with a stable spray amount.

  In addition, the temperature of the metal pin 134 that is an atomizing electrode connecting member is controlled by the input of the heater 158 that is a resistance heating element serving as a heating source based on the cold air generated in the cooling chamber 110 and the temperature detected by temperature detecting means such as the thermistor 159. Since the metal pin 134, which is an atomizing electrode connection member, is formed of a metal piece with good thermal conductivity, the temperature adjustment means is generated by the cooler 112. Necessary cooling and heating control with temperature detection can be performed only by heat conduction from the air path through which the cold air flows.

  Since the cooling means can be configured with such a simple structure, it is possible to realize an atomizing section with few failures and high reliability. Moreover, since the atomization electrode 135 which is an atomization front-end | tip part can be cooled via the metal pin 134 which is an atomization electrode connection member using the cooling source of a refrigerating cycle, it atomizes by energy saving. Can do.

  At this time, in the atomization part of the present embodiment, the atomization part has a shape having the convex part 134a on the opposite side to the atomization electrode 135 by the metal pin 134 that is the atomization electrode connection member. Since the end 134b on the convex portion 134a side is closest to the cooling means, the metal pin 134 that is the atomizing electrode connecting member is cooled by the cold air that is the cooling means from the end 134b that is farthest from the atomizing electrode 135. It will be cooled.

  In addition, since the heater 158 that is a resistance heating element that is a heating unit is also installed at the end 134b on the convex portion 134a side in the atomization portion 139, the atomization is also performed in the metal pin 134 that is an atomization electrode connection member. Heating is performed from the end portion 134b farthest from the electrode 135 by a heater 158 which is a resistance heating element as a heating means.

  As described above, the cooling means and the heating means that are the adjusting means are both arranged on the end 134b side farthest from the atomizing electrode 135 in the metal pin 134 that is the atomizing electrode connecting member, so that the temperature change of the adjusting means can be reduced. The direct influence on the atomizing electrode 135 can be further mitigated, and a stable mist spray with a smaller fluctuation load can be realized and the temperature of the atomizing electrode can be adjusted stably.

  Further, the rear partition wall 111 to which the atomizing part is attached has a concave part 111a in a part on the storage chamber side, and the atomizing part having the convex part 134a in the deepest concave part 111b deeper than the concave part 111a. By being inserted, the heat insulating material 152 constituting the partition wall of the storage room can be used as the heat relaxation member, and the atomization electrode is appropriately adjusted by adjusting the thickness of the heat insulating material without providing a special heat relaxation member. Therefore, the atomization part 139 can be made a simpler configuration.

  Further, by inserting the metal pin 134 which is an atomizing electrode connecting member having the atomizing portion 139 in the concave portion 111a and the convex portion 134a in the deepest concave portion 111b, the atomizing portion can be reliably separated by the two-step concave portion without any backlash. It can be attached to the vegetable compartment 107, and can prevent the protruding to the vegetable compartment 107 side which is a storage room.

  Moreover, since the atomization part 139 does not protrude on the outer side across the back partition wall 111 of the vegetable compartment 107 which is a storage room, it does not affect the air passage area, and the cooling amount is reduced by increasing the air passage resistance. Can be prevented.

  In addition, there is a recess in a part of the vegetable compartment 107, and the atomization part 139 is inserted there, so that it does not affect the storage capacity for storing fruits and vegetables and food, and the electrode connecting member can be secured. In addition, the wall thickness that can ensure heat insulation can be secured for the other portions, so that condensation within the case can be prevented and reliability can be improved.

  Moreover, since the metal pin 134 which is an atomization electrode connection member has ensured a certain amount of heat capacity, the response of the heat conduction from a cooling air path can be relieved, Therefore The temperature fluctuation of the atomization electrode 135 is suppressed. In addition, since it has a function as a cold storage member, it is possible to secure a time for occurrence of condensation on the atomizing electrode 135 and to prevent freezing. Furthermore, by combining the metal pin 134, which is a good heat conductive atomizing electrode connecting member, and the heat insulating material 152, it is possible to conduct cold heat well without loss, and furthermore, the metal pin 134, which is an atomizing electrode connecting member, and the fog Since the thermal resistance of the joint portion of the atomizing electrode 135 is suppressed, temperature fluctuations of the atomizing electrode 135 and the metal pin 134 which is the atomizing electrode connecting member follow well. Moreover, since humidity cannot penetrate | invade also about joining, thermal joining property is maintained over a long term.

  In addition, since the storage room is in a high humidity environment and the humidity may affect the metal pin 134 that is the atomizing electrode connecting member, the metal pin 134 that is the atomizing electrode connecting member is resistant to corrosion and resistance. Since surface treatment and coating such as a rust-resistant metal material or anodizing are performed, rust and the like are not generated, the increase in surface thermal resistance is suppressed, and stable heat conduction can be secured.

  In addition, since the surface of the atomizing electrode 135 uses nickel plating, gold plating, or platinum plating, wear due to discharge at the tip of the atomizing electrode is suppressed, and thereby the shape of the tip of the atomizing electrode 135 can be maintained. It becomes possible to spray, and the shape of the droplet at the tip is also stabilized.

  When fine mist is sprayed from the atomizing electrode 135, an ion wind is generated. At this time, freshly humid air flows into the atomizing unit 139 from the humidity supply port 138, and therefore, it can be continuously sprayed.

  The generated fine mist is sprayed into the lower storage container 119, but is very diffusible due to very small particles, and the fine mist reaches the upper storage container 120. Since the fine mist to be sprayed is generated by high-pressure discharge, it has a negative charge. Among the vegetables that are fruits and vegetables, green vegetable leaves and fruits are also stored in the vegetable room 107, and these fruits and vegetables are more susceptible to wilt due to transpiration or transpiration during storage. Some vegetables and fruits stored in the vegetable compartment usually have a slight charge due to transpiration at the time of purchase return or transpiration during storage, and have a positive charge. Therefore, the atomized mist is easy to gather on the surface of vegetables, and this improves the freshness.

  In addition, the nano-level fine mist adhering to the vegetable surface contains a large amount of radicals such as OH radicals and ozone although it is in a small amount, and is effective for sterilization, antibacterial, sterilization and the like. In addition, vegetables are encouraged to increase nutrients such as removal of pesticides by oxidative degradation and vitamin C by antioxidants.

  In addition, since the generated fine mist is extremely nano-sized fine particles, it has strong diffusibility, and therefore, it is diffused and sprayed into the storage chamber according to natural convection in the storage chamber, so the effect of the fine mist spreads throughout the storage chamber. .

  Here, when there is no water in the atomizing electrode 135, the discharge distance is increased, the air insulating layer cannot be destroyed, and the discharge phenomenon does not occur. In addition, when there is excessive dew condensation and excessive moisture, the electrostatic energy for refining the water droplets cannot overcome the surface tension and the discharge phenomenon does not occur. As a result, no current flows between the atomizing electrode and the counter electrode. By detecting this phenomenon by the control means 146 of the refrigerator 100, the high voltage of the voltage application unit 133 can be turned ON / OFF.

  Further, in the present embodiment, the voltage application unit 133 is installed at a relatively low temperature and high humidity position in the storage chamber, and the voltage application unit has a moisture-proof / waterproof structure with a potting material or a coating material. Protected.

  In addition, when installing the voltage application part 133 outside a storage room, it is not necessary to perform the said response | compatibility.

  A heater 158 which is a resistance heating element such as a chip resistor is connected to the atomizing electrode 139 in the vicinity of the atomizing part 139 as a heating means for preventing excessive dew condensation and freezing of the peripheral part including the atomizing electrode 135 which is the atomizing tip part. An electrostatic atomizer 131 is provided integrally with the end surface 134b on the convex portion 134a side of the metal pin 134, which is a member, to control the tip temperature of the atomization electrode 1335 and supply it to the atomization electrode 135 which is the atomization tip portion. Since the amount of condensation to be adjusted is adjusted, it is not necessary to provide a special heat source by installing the electrostatic atomizer 131 on the refrigerator 100 side, so that the configuration can be simplified.

  Here, the heater 158 that is a resistance heating element has been described as being provided on the end surface 134b on the convex portion 134a side of the metal pin 134 that is an atomizing electrode connection member, but an installation method such as winding around the body portion of the metal pin 134 But it is possible and the same effect is obtained.

  Next, in FIG. 3, the discharge current monitor voltage value output from the electrostatic atomizer 131 and the output signal from the atomization electrode temperature detection means 159 are input to the control means 146 of the refrigerator 100 main body, and electrostatic atomization is performed. The operation of the voltage application unit 133 for applying the high voltage of the device 131 and the heater 158 which is a resistance heating element is determined. For example, when the atomizing electrode temperature detection unit 159 determines that the atomizing electrode temperature is equal to or lower than the dew point, the control unit 146 generates a high voltage in the voltage application unit 133 of the electrostatic atomizer 131. Further, when the temperature at which the atomizing electrode 135 may freeze and the door opening / closing operation are frequently performed, the inside of the vegetable compartment 107 is very humid, and the atomizing electrode 135 is assumed to be in an excessively condensed state. The heater 158, which is a resistance heating element, is energized and heated, and condensed water adhering to the surface of the atomizing electrode 135 is melted and evaporated to adjust the amount of water in the atomizing electrode 135.

  Here, by controlling the input of the heater 158, which is a resistance heating element, to be variable or to change the energization rate according to the detection temperature of the temperature detection means such as the thermistor 159, more stable temperature control is possible, and excessive dew condensation or In order to prevent freezing, it is possible to reset (dry) the condensation state at the tip of the atomizing electrode 135 by periodically increasing the input or energization rate of the heater 158 which is a resistance heating element. Although the electrode temperature detection means 159 is used, when it is easy to estimate the temperature behavior from the refrigeration cycle of the refrigerator 100, the temperature detection means may not be provided. Moreover, since the humidity in the storage chamber varies depending on the behavior of the refrigerator compartment damper, the voltage application unit 133 may be turned on / off in conjunction with the refrigerator compartment damper.

  Furthermore, although the cold storage room damper is used in the embodiment, a vegetable room damper may be used.

  Next, a control flow of an example of the present embodiment in FIG. 6 will be described.

In order to control the temperature of the atomizing electrode 135, the temperature of the atomizing electrode is determined. Being in the atomization electrode temperature adjustment mode in step 250, it is higher than the first value _{T 1} that the atomization electrode temperature _{T f} is preprogrammed at step 251 (e.g., _T 1 = 6 ° C.), atomizing electrode 135 It is determined that there is no condensation due to the high temperature, or the internal temperature is high, and the routine proceeds to step 252 where the high-pressure generation of the electrostatic atomizer 131 is stopped and the energization of the heater 158 which is a resistance heating element is stopped. Let If the first lower than the value T ₁ of the atomization electrode temperature T _f is preprogrammed, the process proceeds to step 253. If atomizing electrode temperature _{T f} is higher than the second value _{T 2} which is pre-programmed at step 253 (e.g., _T 2 = -6 ° C.), it determines that the atomization electrode 135 is appropriate temperature, proceeds to step 254, A high voltage is applied by the voltage application unit 133 of the electrostatic atomizer 131. However, the heater 158 that is a resistance heating element that heats the metal pin 134 that is the atomizing electrode connecting member is not operated. If the second lower than the value T ₂ which atomization electrode temperature T _f is preprogrammed, the process proceeds to step 255. Next, in step 255, is higher than the third value _{T 3} of the atomization electrode temperature _{T f} is preprogrammed (e.g. _T 3 = -12 ° C.), atomizing electrode 135 is to be supercooled state determination Then, the process proceeds to step 256. Although the discharge of the atomizing electrode 135 is continued by step 256, the heater 158 which is a resistance heating element is operated to prevent freezing. If it is determined in step 255 that the atomization electrode temperature Tf is lower than T3, it is assumed that the atomization electrode 135 is frozen, the discharge is stopped, the heater 158 that is a resistance heating element is operated, The heating electrode 135 is heated and heated to preferentially melt frost and ice adhering to the atomizing electrode 135.

  After the end of step 252, step 254, step 256, and step 257, after a predetermined time has passed, the process returns to the initial step, the control is continued, and the water amount of the atomizing electrode 135 is adjusted.

  Here, the operation of the heater 158 which is a resistance heating element and the operation of the partition heater wall heater 154 can be interlocked to shorten the heating time and obtain an energy saving effect.

  In addition, although the ON / OFF control is performed as the control operation of the heater 158 that is a resistance heating element, fine control is possible by controlling the phase of the input to the heater 158 that is a resistance heating element, and temperature control is performed with an optimum input. Can be controlled.

  As described above, in the first embodiment, the storage chamber that is partitioned by heat insulation and the electrostatic atomizer that sprays mist in the storage chamber are provided, and the atomization unit is a voltage application unit that generates a high voltage. An atomizing electrode to be electrically connected, a counter electrode disposed at a position facing the atomizing electrode, and a means for adjusting the amount of water in the atomizing electrode are configured. Integrated with the atomizer and provided with temperature detection means for detecting the temperature of the resistance heating element and the tip of the atomizing electrode as a heating source for adjusting the temperature of the tip of the atomizing electrode, and condensing moisture in the air to the atomizing electrode. By spraying as mist on the atomizing electrode, it is possible to easily and reliably condense the excess water vapor in the storage chamber to the atomizing electrode, and to adjust the amount of water at the tip of the atomizing electrode stably and continuously. Corona discharge occurs between the counter electrode and the counter electrode. Generated nano-level fine mist, atomized fine mist uniformly adhered to the surface of fruits or vegetables such as vegetables, suppressing transpiration from fruits or vegetables, it is possible to improve the freshness. Moreover, it can penetrate | invade in a structure | tissue from the cell space | gap, pores, etc. on the surface of fruit and vegetables, and a water | moisture content is supplied to the deflated cell, It can return to a crispy state. In addition, stable temperature adjustment is possible regardless of the cooling operation status on the refrigerator side, and no special heating means is installed on the refrigerator side, so temperature control and moisture adjustment of the atomization electrode are realized with a simple configuration can do.

  Moreover, since it discharges between an atomization electrode and a counter electrode, a spraying direction is decided when an electric field can be constructed | assembled stably, and it becomes easy to spray fine mist in a storage container.

  In addition, the effects of deodorization, removal of harmful substances on the food surface, and antifouling can be enhanced by ozone and OH radicals generated simultaneously with the occurrence of mist.

  The sprayed mist can be directly sprayed on the food in the vegetable container, and the mist can be attached to the vegetable surface using the potential of the mist and the vegetable. In addition, the effects of removing harmful substances and antifouling on the food surface are further improved.

  In addition, dew hose and purification filter to supply water for mist spraying by condensing excess water vapor in the storage chamber to the atomizing electrode, adhering water droplets and spraying mist, or water supply directly connected to water supply There is no need for a route, a water storage tank, etc., and no water supply means such as a pump or capillary is used, so that it is possible to supply fine mist to the storage room with a simple configuration without requiring a complicated configuration. .

  In this way, it is possible to stably supply the fine mist to the storage room with a simple configuration, so that the possibility of failure of the refrigerator can be greatly reduced, and the quality of the refrigerator can be improved with higher reliability. Can be improved.

  Furthermore, since dew condensation water is used instead of tap water, there are no mineral components and impurities, so that it is possible to prevent deterioration when the water retention material is used and deterioration of water retention due to clogging.

  Furthermore, since it is not ultrasonic atomization by ultrasonic vibration, there is no fear of destruction of the piezoelectric element due to water deficiency, deformation of its surrounding members, a water storage tank is unnecessary, and the input is small, so the inside of the warehouse There is little temperature effect.

  Furthermore, since it is not ultrasonic atomization by ultrasonic vibration, it is not necessary to consider noise and vibration such as resonance accompanying ultrasonic frequency transmission.

  In addition, since a water storage tank is unnecessary, there is no need to provide a water level sensor for the destruction of ultrasonic elements due to lack of water, which is necessary when using a water storage tank. An apparatus can be provided.

  Furthermore, since the portion in which the voltage application unit is housed is also embedded in the rear partition wall and cooled, the temperature rise of the substrate can be suppressed. Thereby, the temperature influence in the storage chamber can be reduced, and at the same time, the reliability of the substrate is improved.

  Further, in the present embodiment, a cooler for cooling each storage room, and a partition wall for insulating and partitioning the cooler and the storage room, the electrostatic atomizer is attached to the partition wall, By installing it in the gap in the storage chamber, the storage volume does not decrease, and since it is attached to the back surface, it cannot be easily touched by human hands, so that safety is improved.

  In the present embodiment, the adjustment means that can cool and heat the atomization electrode of the electrostatic atomizer and adjust the condensation amount at the tip of the atomization electrode is an atomization electrode connection made of a metal piece with good thermal conductivity. The metal pin which is a member, and the means for cooling and heating the metal piece is the heat conduction from the air passage through which the cool air generated by the cooler flows and the heater heating means. By adjusting the heater input value, the temperature of the atomizing electrode can be easily set via the metal pin that is the atomizing electrode connecting member, and there is no leakage of cold air by sandwiching the heat insulating material. Therefore, it is possible to prevent a decrease in reliability such as frost formation and dew condensation on the outer case of the case.

  Moreover, in this Embodiment, the back surface partition wall to which the electrostatic atomizer is attached has a recessed part in a part by the side of a storage chamber, and there is a metal piece which is a water amount adjustment means of the electrostatic atomizer Is inserted into the case without affecting the storage capacity for storing fruits, vegetables, foods, etc., and the wall thickness that can secure heat insulation can be secured except for the part where the electrostatic atomizer is installed. The dew condensation can be prevented and the reliability can be improved.

  Further, in the present embodiment, the partition wall for thermally insulating the cooler and the storage chamber includes at least one air passage for conveying cold air to the storage chamber or the cooler, and the storage chamber and other air passages. The means for varying the temperature of the atomizing electrode of the electrostatic atomizer is a metal piece with good thermal conductivity, and the temperature of the metal piece is provided. The temperature of the atomizing electrode can be adjusted with certainty by adjusting the temperature using a cooler generated by a cooler and heating means such as a heater.

  Furthermore, the tip of the atomizing electrode is equipped with a heating means such as a heater as one of the water quantity adjustment means to prevent excessive condensation, thereby adjusting the size and amount of the tip droplet by temperature control of the tip temperature. Can be stably sprayed, and the antibacterial ability can be improved.

  Note that ozone is generated in a minute amount when fine mist is generated, but since the discharge current value is extremely small, and the reference potential is 0 V and the counter electrode is discharged on the plus side of +7 kV, the concentration is not felt by humans. Furthermore, since the ozone concentration in the storage chamber can be adjusted by the ON / OFF operation of the electrostatic atomizer, the deterioration of vegetables such as yellowing due to excessive ozone can be prevented by adjusting the concentration appropriately. And the sterilization and antibacterial action of the vegetable surface can be enhanced.

  In this embodiment, a high-voltage potential difference is generated between the reference electrode side (0 V) and the counter electrode (+7 kV), but the counter electrode is set to the reference potential side (0 V) and applied to the atomization electrode. (−7 kV) and a high voltage potential difference may be generated. In this case, since the counter electrode close to the storage chamber is on the reference potential side, an electric shock or the like does not occur even when a person approaches the counter electrode. Further, when the atomizing electrode is set to -7 kV, there may be a case where the counter electrode is not particularly required if the storage chamber side is set to the reference potential side.

  In this embodiment, a resistance heating element such as a chip resistor has been described as a heating source. However, a general sheathed heater, a PTC heater, or the like can be used, and the installation position of the metal pin is It can also be attached to or wrapped around the trunk, and can be installed in the vicinity of the metal pin of the outer case of the electrostatic atomizer.

  In the present embodiment, the thermistor has been described as the temperature detection means. However, it is also possible to use a thermocouple connected to a different metal or an infrared sensor as a non-contact temperature device.

  In the present embodiment, the air passage for cooling the metal pin that is the atomizing electrode connecting member is the freezer compartment discharge air passage, but the ice compartment discharge air passage, the freezer compartment return air passage, etc. A low temperature air passage is also acceptable. Thereby, the installation possible place of an electrostatic atomizer is expanded.

  In the present embodiment, the cooling means for cooling the metal pin that is the atomizing electrode connecting member is cold air cooled by using the cooling source generated in the refrigeration cycle of the refrigerator. The heat transfer from the cooling pipe using cold air or cold temperature may be used. Thereby, by adjusting the temperature of this cooling pipe, the electrode cooling part can be cooled to an arbitrary temperature, and it becomes easy to perform temperature management when cooling the atomizing electrode.

  In the present embodiment, the water retention material is not provided around the atomization electrode of the electrostatic atomizer, but a water retention material may be provided. Thereby, since the dew condensation water produced | generated by the atomization electrode vicinity can be hold | maintained around an atomization electrode, it can supply to an atomization electrode at timely.

  In this embodiment, the storage room of the refrigerator is a vegetable room, but it may be a storage room in another temperature zone such as a refrigerator room or a switching room, and in this case, it can be developed for various uses.

  Moreover, in this Embodiment, although the metal pin which is an atomization electrode connection member was used, what is necessary is just a good heat conductive member, For example, you may use the polymer material of high heat conductivity. In this case, weight reduction and workability are improved, and the configuration is inexpensive.

(Embodiment 2)
FIG. 7 is a detailed cross-sectional view of the vicinity of the electrostatic atomizer in Embodiment 2 of the present invention.

  In the present embodiment, detailed description will be made mainly on parts different from the structure described in the first embodiment, and parts having the same structure as those in the first embodiment and parts to which the same technical idea can be applied will be described in detail. Description is omitted.

  In the figure, a back partition wall 111 is a heat insulating material 152 using a polystyrene foam or the like in order to isolate the back partition wall surface 151 made of a resin such as ABS from the air passage and the cooling chamber 110 and to ensure heat insulation. It is configured. Here, the concave portion 111a and the through portion 111c are provided in a part of the wall surface of the back partition wall 111 on the storage chamber side, and further, the atomization electrode connecting member is inserted into the through portion 111c with the metal pin 134 being atomized. An electrostatic atomizer 131 as a device is installed.

  At this time, a part of the metal pin 134 which is the atomizing electrode connecting member penetrates the heat insulating material and is exposed to a part of the low temperature air passage. Moreover, the low temperature air path has a heat insulating material recess 155 formed in the vicinity of the through-hole 111c on the back surface of the metal pin that is the atomizing electrode connecting member, and the air path is partially enlarged.

  Further, in the vicinity of the atomizing portion 139 of the electrostatic atomizing device 131, a chip resistor is provided as a heating means for adjusting the temperatures of the atomizing electrode 135 as the atomizing tip and the metal pin 134 as the atomizing electrode connecting member. A heater 158 which is a resistance heating element such as the above is configured.

  In addition, it is more preferable to select the metal pin 134 which is an atomization electrode connection member, the metal material which has the performance of corrosion resistance and rust resistance, or the material which performed surface treatment and coating, such as alumite treatment.

  About the refrigerator comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  The heat insulating material 152 has a thinner wall thickness than other portions of a part of the rear partition wall 111 that is a relatively high humidity environment, and in particular, heat insulation near the side wall of the metal pin 134 that is an atomizing electrode connecting member. The thickness of the material is, for example, about 2 mm to 10 mm. Thereby, the recessed part 111a is comprised in the back surface partition wall 111, and the electrostatic atomizer 131 is attached to this location.

  A part of the metal pin 134 as the atomizing electrode connecting member is exposed to the low temperature air passage 156 on the back surface. A metal pin that is generated by the cooler 112 by the operation of the refrigeration cycle, is cooled by the cooling fan 113 at a temperature lower than the temperature of the vegetable compartment, and is heated by a heater 158 that is a resistance heating element or a partition wall heater 154. For example, 134 is adjusted to about 0 to -10 ° C. At this time, since the metal pin 134 which is an atomization electrode connection member is a heat conduction member, it is very easy to transmit cold heat, and the atomization electrode 135 is also adjusted to about 0 to −10 ° C.

  At this time, since it gradually expands toward the vicinity of the heat insulating material recess of the low temperature air passage 156, the air passage resistance is lowered, so that the air volume of the cooling fan 113 is increased and the refrigeration cycle efficiency is improved.

  A high voltage (for example, 4 to 10 kV) is applied between the electrodes by the voltage application unit 133 with a negative voltage applied to the atomizing electrode 135 to which water droplets have adhered and the counter electrode 136 set to the positive voltage side. At this time, corona discharge occurs between the electrodes, the water droplets at the tip of the atomizing electrode 135 are refined by electrostatic energy, and since the droplets are charged, they have an invisible charge of several nm level due to Rayleigh splitting. Nano-level fine mist and accompanying ozone and OH radicals are generated. The voltage applied between the electrodes is a very high voltage of 4 to 10 kV, but the discharge current value at that time is several μA and the input is a very low input of 0.5 to 1.5 W.

  The generated fine mist is sprayed into the lower storage container 119, but is very diffusible due to very small particles, and the fine mist reaches the upper storage container 120. Moreover, since the fine mist to be sprayed is generated by high-pressure discharge, it has a negative charge. Among the vegetables that are fruits and vegetables, green vegetable leaves and fruits are also stored in the vegetable room 107, and these fruits and vegetables are more susceptible to wilt due to transpiration or transpiration during storage. Some vegetables and fruits stored in the vegetable compartment usually have a slight charge due to transpiration at the time of purchase return or transpiration during storage, and have a positive charge. Therefore, the atomized mist is easy to gather on the surface of vegetables, and this improves the freshness.

  In addition, nano-level fine mist adhering to the vegetable surface contains a lot of OH radicals and a small amount of ozone, etc., and is effective for sterilization, antibacterial, sterilization, etc. Encourages vegetables to increase nutrients such as vitamin C.

  As described above, in the second embodiment, the partition wall for thermally insulating the cooler and the storage chamber includes at least one air passage for transporting cold air to the storage chamber or the cooler, and the storage chamber. A means for adjusting the temperature of the atomizing electrode 135 (atomizing tip) of the electrostatic atomizer to a dew point or less is provided with a heat insulating material that is insulated so as not to have a thermal effect with other air paths. The metal pin 134 which is an atomizing electrode connecting member made of a good metal piece, and the adjusting means for adjusting the temperature of the metal pin 134 which is the atomizing electrode connecting member is a cooling consisting of cold air generated by a cooler By means of the means and the heating means provided in the vicinity of the metal pin that is the atomizing electrode connecting member, the temperature of the atomizing electrode can be adjusted with certainty.

  Although not shown here, by installing an internal temperature detection unit, an internal humidity detection unit, and the like in the storage, the dew point can be determined strictly according to changes in the internal environment by a predetermined calculation.

  Moreover, in this Embodiment, the partition wall to which the electrostatic atomizer is attached has a recessed part in a part by the side of an air path, and the metal piece which is a cooling means of an electrostatic atomizer is inserted there Therefore, the metal piece can be surely cooled, and the air passage area is gradually increased, so that the air passage resistance is reduced or equalized, so that the cooling amount can be prevented from being lowered. Moreover, the temperature of the atomization electrode can be easily adjusted by the exposed surface area of the metal pin, which is the atomization electrode connecting member, to the air passage and the heater input amount.

  In this embodiment, the metal pin that is the atomizing electrode connecting member is installed in the concave portion of the air passage. However, if the metal pin that is the atomizing electrode connecting member can secure an appropriate temperature, the concave portion is provided on the air passage side. It does not have to be provided. In this case, the air path can be easily processed.

(Embodiment 3)
FIG. 8 is a detailed cross-sectional view of the vicinity of the electrostatic atomizer in the third embodiment of the present invention.

  In the present embodiment, detailed description will be made mainly on parts different from the configurations described in the first and second embodiments, and portions having the same configuration as the first and second embodiments and portions to which the same technical idea can be applied. Will not be described in detail.

  As shown in the figure, an electrostatic atomizer 131 that is an atomizer is incorporated in the first partition wall 123 that secures heat insulation in order to separate the temperature zones of the vegetable compartment 107 and the ice making chamber 106, In particular, for the metal pin 134 portion which is an atomizing electrode connecting member of the atomizing portion 139, the heat insulating material has a concave shape, and a heater 158 which is a resistance heating element is formed in the vicinity thereof.

  About the refrigerator comprised as mentioned above, the operation | movement * effect | action is demonstrated below.

  The thickness of the first partition wall 123 where the electrostatic atomizer 131 is installed cools the metal pin 134 which is an atomization electrode connecting member to which the atomization electrode 135 which is the atomization tip is fixed. The wall thickness of the recessed part 123a in which the electrostatic atomizer 131 is provided is configured to be thinner than other parts, and the metal pin 134 that is an atomizing electrode connecting member is held. The wall thickness of the deepest recess 123b is made thinner than the recess 123a. Therefore, the metal pin 134 which is an atomization electrode connection member can be cooled by heat conduction from the ice making chamber at a relatively low temperature, and the atomization electrode 135 can be cooled. Here, if the tip temperature of the atomizing electrode 135 is set to be equal to or lower than the dew point, water vapor in the vicinity of the atomizing electrode 135 is condensed on the atomizing electrode 135, and water droplets are reliably generated.

  Further, since the temperature control of the ice making chamber 106 such as outside air temperature fluctuation or quick ice may fluctuate and the atomizing electrode 135 may be overcooled, the heater 158 which is a resistance heating element installed in the vicinity of the atomizing electrode 135. The amount of water at the tip of the atomizing electrode 135 is optimized by adjusting the temperature of the atomizing electrode 135.

  Although not shown here, by installing an internal temperature detection unit, an internal humidity detection unit, and the like in the storage, the dew point can be determined strictly according to changes in the internal environment by a predetermined calculation.

  In this state, the atomizing electrode 135 is set to the negative voltage side, the counter electrode 136 is set to the positive voltage side, and a high voltage (for example, 7.5 kV) is applied between the electrodes by the voltage applying unit 133. At this time, the air insulating layer is destroyed between the electrodes, corona discharge occurs, the water of the atomizing electrode 135 is atomized from the tip of the electrode, and nano-level fine mist having a charge of less than 1 μm that cannot be visually observed, and the accompanying ozone And OH radicals are generated.

  The generated fine mist is sprayed into the vegetable container. The fine mist sprayed from the electrostatic atomizer 131 is negatively charged. On the other hand, vegetables, which are fruits and vegetables, are stored in the vegetable room, and green rape leaves, fruits and the like are also stored therein. These fruits and vegetables are usually stored in a slightly deflated state due to transpiration at the time of purchase return or transpiration during storage. These fruits and vegetables are normally charged with a positive charge, and the sprayed fine mist with a negative charge tends to collect on the vegetable surface. Therefore, the sprayed fine mist makes the vegetable room highly humid again and at the same time adheres to the surface of the fruits and vegetables, suppresses the transpiration from the fruits and vegetables, and improves the freshness. In addition, it penetrates into the tissues through the gaps between the cells of vegetables and fruits, the water evaporates, the water is supplied again into the deflated cells, the deflation is eliminated by the cell swelling pressure, and it returns to a crispy state .

  Moreover, the generated fine mist holds ozone, OH radicals, etc., and these hold strong oxidizing power. Therefore, the generated fine mist can deodorize the vegetable room and antibacterial and sterilize the vegetable surface. At the same time, it can oxidatively decompose and remove harmful substances such as agricultural chemicals and wax adhering to the vegetable surface.

  Currently, refrigerants in the refrigeration cycle that use isobutane, which is a flammable refrigerant with a low global warming potential, are mainly used from the viewpoint of global environmental conservation.

  This isobutane, which is a hydrocarbon, has a specific gravity approximately twice that at normal temperature and atmospheric pressure compared with air (at 2.04 and 300K).

  If isobutane, which is a combustible refrigerant, leaks from the refrigeration system when the compressor is stopped, it leaks downward because it is heavier than air. At this time, the refrigerant may leak from the rear partition wall 111 into the cabinet. In particular, when the refrigerant leaks from the cooler 112 having a large amount of refrigerant, the amount of leakage may increase. However, the vegetable compartment 107 including the electrostatic atomizer 131 is installed above the cooler 112. Therefore, even if it leaks, it does not leak into the vegetable room.

  Even if it leaks into the vegetable compartment 107, the refrigerant stays in the lower part of the storage compartment because it is heavier than air. Therefore, since the electrostatic atomizer 131 is installed on the top of the storage room, it is extremely low that the vicinity of the electrostatic atomizer 131 becomes a flammable concentration.

  As described above, the third embodiment includes the partition wall for partitioning the storage chamber, the low temperature storage chamber on the top surface side of the storage chamber, and the electrostatic atomizer on the top partition wall. If the storage room in the freezing temperature zone, such as a freezing room or ice making room, is installed at the top, it is installed on the partition wall on the top surface that partitions them, and the atomizing electrode of the electrostatic atomizer is used as its cooling source. Because it can cool and condense, no special cooling device is required, and since it can be sprayed from the top, it spreads easily throughout the storage container, and it is also difficult to touch human hands, improving safety Can be made.

  Moreover, the atomization part of this Embodiment produces | generates mist by an electrostatic atomization system, and generates fine mist by dividing | segmenting and subdividing a water droplet using electric energy, such as a high voltage. The generated mist has a charge, so by giving the mist the opposite charge to the object you want to attach, such as vegetables and fruits, for example, the mist with a negative charge is added to the positively charged vegetables. Spraying improves adhesion to vegetables and fruits, so that the mist adheres more uniformly to the vegetable surface and improves the mist adhesion rate compared to non-charged mists. I can do it. In addition, the sprayed fine mist can be directly sprayed on the food in the vegetable container, and the fine mist can be attached to the vegetable surface using the potential of the fine mist and the vegetable, so the freshness is efficiently maintained. Can be improved.

  Furthermore, the makeup water of this embodiment uses condensed water instead of tap water supplied from the outside. Therefore, there is no mineral component or impurity, and deterioration of the water retention due to clogging of the tip of the atomizing electrode or clogging can be prevented.

  Furthermore, since the mist of the present embodiment contains radicals, agricultural chemicals and wax adhering to the vegetable surface can be decomposed and removed with an extremely small amount of water, so that water can be saved and input can be reduced.

  In addition, since the electrostatic atomizer is arranged above the evaporator, when the refrigeration cycle is configured using a combustible refrigerant such as isobutane or propane, and when the refrigerant leaks, Since it is heavier than air, it does not fill the vegetable compartment with the refrigerant, so it is safe.

  Moreover, since the electrostatic atomization part is installed above the storage room also in the vegetable compartment, even if a refrigerant | coolant leaks, it will remain in the lower part of a storage room, and it does not ignite.

  In addition, since there is no part which faces the refrigerant | coolant piping etc. directly in the storage chamber, a refrigerant | coolant does not leak. Therefore, the combustible refrigerant is not ignited.

(Embodiment 4)
9 is a cross-sectional view of the vicinity of the vegetable compartment of the refrigerator according to Embodiment 4 of the present invention, FIG. 10 is a plan view of the BB portion of FIG. 9 of the vegetable compartment upper partition wall of the refrigerator, and FIG. It is a front view of the C section.

  In the present embodiment, only the parts different from the configuration described in detail in the first to third embodiments will be described in detail, and the same part or the same technical idea as the configuration described in detail in the first to third embodiments will be described. The description of the applicable parts is omitted.

  In the figure, a heat insulating box 101 of a refrigerator 100 is mainly composed of an outer box 102 using a steel plate and an inner box 103 molded of a resin such as ABS, and a foam heat insulating material such as hard foamed urethane is contained therein. Filled, insulated from the surroundings, divided into multiple storage rooms. In the present embodiment, the vegetable compartment 107 is configured at the lowermost part of the refrigerator, and the freezer compartment 108 or the ice making chamber 106 that sets the temperature of the freezing temperature zone is formed thereon, and a partition wall is provided between them. It is partitioned as a partition and storage room.

  A cooling chamber 110 for generating cold air is provided on the back surface of the freezing chamber 108, and in between, a cold air conveying air passage to each chamber having heat insulation properties and a back surface configured to thermally insulate each chamber. A partition wall 111 is configured.

  The cool air generated by the cooler 112 in the cooling chamber 110 is conveyed to each chamber by a cooling fan. Here, the vegetable compartment 107 of the present embodiment uses the return air passage in which the cold air generated by the upper cooler 112 is directly or in the other compartment to exchange heat, and enters the vegetable compartment via the vegetable compartment discharge air passage 182. The flow returns to the cooler 112 from the vegetable room suction air passage 421 again.

  A partition wall 414 is formed on the upper surface of the vegetable compartment 107 to partition the freezer compartment 108.

  The partition wall 414 includes a vegetable compartment side partition plate 413 and a freezer compartment side partition plate 412 made of a resin such as ABS, and a heat insulating material 411 made of foamed polystyrene or urethane for ensuring heat insulation therebetween. ing. Here, a recess is provided in a part of the wall of the partition wall 414 on the vegetable room side so as to be cooler than the other part, and the electrostatic atomizer 131 and the mist air passage 415 are installed in that part.

  The electrostatic atomizer 131 is mainly composed of an atomization unit 139 and a voltage application unit 133. The atomizing portion 139 is provided with an atomizing electrode 135, and the atomizing electrode 135 is fixed to a metal pin 134 which is an atomizing electrode connecting member made of a good heat conducting member such as aluminum, stainless steel, brass, etc. The connection including the one end wired from the voltage application unit 133 is made.

  The metal pin 134 as the atomizing electrode connecting member has a large heat capacity of 50 times or more, preferably 100 times or more compared to the atomizing electrode 135, and for example, a high heat conductive member such as aluminum or copper is preferable, In order to efficiently conduct cold heat from one end to the other end of the metal pin 134 which is an atomizing electrode connecting member, it is desirable that the periphery is covered with a heat insulating member.

  In addition, since it is necessary to maintain the heat conduction of the atomizing electrode 135 and the metal pin 134 which is the atomizing electrode connecting member for a long period of time, an epoxy member or the like is poured into the connecting portion to prevent intrusion of humidity or the like. The thermal resistance is suppressed, and further, the atomizing electrode 135 and the metal pin 134 that is the atomizing electrode connecting member are fixed. Further, in order to reduce the thermal resistance, the atomizing electrode 135 may be fixed to the metal pin 134 as the atomizing electrode connecting member by press fitting or the like.

  Furthermore, since the metal pin 134 which is an atomization electrode connection member needs to conduct heat and cold in a heat insulating material for insulating the storage chamber and the cooler 112 or the air passage, its length is preferably 5 mm or more. It is desirable to ensure 10 mm or more. However, when the length is set to 30 mm or more, the effect is reduced, and at the same time, the partition wall is thickened and the storage capacity in the warehouse is reduced.

  In addition, since the electrostatic atomizer 131 installed in the storage room is in a high humidity environment, the humidity may affect the metal pin 134 which is the atomization electrode connection member. For a certain metal pin 134, it is preferable to select a metal material having corrosion resistance and rust resistance performance, or a material subjected to surface treatment or coating such as alumite treatment.

  The metal pin 134 that is an atomizing electrode connecting member is fitted to a recess provided in a part of the heat insulating material 411 and fixed to the heat insulating material 411, and the atomizing electrode 135 is connected to the metal pin 134 that is an atomizing electrode connecting member. It is attached in a shape protruding in an L shape. This contributes to the thinning of the partition wall in order to increase the storage amount in the cabinet.

  Therefore, the end face on the opposite side of the atomizing electrode of the metal pin 134 which is the atomizing electrode connecting member is pressed against the partition plate 412 on the freezer compartment 108 side molded with a resin such as ABS or PP, and the freezer compartment 108 Cold air cools the atomizing electrode 135 by heat conduction through the partition plate, causes condensation at the tip of the atomizing electrode 135, and generates water.

  Since the cooling means can be configured with such a simple structure, it is possible to realize an atomizing section with few failures and high reliability. Moreover, since the atomization electrode 135 can be cooled via the electrode connection member using a cooling source of the refrigeration cycle, atomization can be performed with energy saving.

  Further, a donut disk-shaped counter electrode 136 is attached to the storage chamber side at a position facing the atomizing electrode 135 so as to maintain a constant distance from the tip of the atomizing electrode 135, and a mist air passage 415 is provided on the extension. Is formed.

  The mist air passage 415 is provided in the recess of the partition wall 414 that partitions the vegetable compartment 107 and the freezing compartment 108.

  The partition wall 414 is generally configured to have a thickness of 25 mm to 45 mm in order to ensure heat insulation and internal volume. A mist air passage is provided in the recess.

  The mist air passage has a suction port 423 for supplying humidity from the vegetable compartment 107 and a suction air passage 421, and this air passage causes high-humidity air to flow through the atomizing section 139. At this time, since the atomization electrode 135 of the atomization unit 139 is cooled from the freezing chamber 108 through the metal pin 134 which is an atomization electrode connection member by heat conduction, the tip of the atomization electrode 135 is condensed.

  Mist is generated by applying a high voltage between the tip of the atomizing electrode 135 and the counter electrode 136, and the generated mist passes through the mist discharge air passage 417 and is sprayed to the vegetable compartment 107 from the mist discharge port.

  Furthermore, a voltage application unit 133 electrically connected to the atomization unit 139 is configured, and the negative potential side of the voltage application unit 133 that generates a high voltage is electrically connected to the atomization electrode 135 and the positive potential side is electrically connected to the counter electrode 136. Wired and connected to.

  In the vicinity of the atomizing electrode 135, discharge always occurs due to the mist spraying, and therefore, there is a possibility that the tip of the atomizing electrode 135 is worn. Since the refrigerator 100 will be operated for more than 10 years, the surface of the atomizing electrode 135 needs to have a tough surface treatment to ensure wear resistance. For example, nickel plating, gold plating, or platinum plating is used. It is desirable.

  The counter electrode 136 is made of, for example, stainless steel, and it is necessary to ensure its long-term reliability. In particular, in order to prevent foreign matter adhesion and contamination, it is desirable to perform surface treatment such as platinum plating.

  The voltage application unit 133 is communicated and controlled with the control means 146 of the refrigerator 100 main body, and performs high voltage ON / OFF by an input signal from the refrigerator 100 or the electrostatic atomizer 131.

  In addition, heating means 158 such as a heater is installed on the partition wall 414 that fixes the electrostatic atomizer 131 in order to prevent condensation in the air passage.

  Furthermore, in order to prevent the temperature adjustment of the metal pin 134 which is the atomization electrode connecting member provided in the electrostatic atomizer 131 and the excessive dew condensation and freezing of the peripheral part including the atomization electrode 135 which is the atomization tip part. As a heating means, a heater 158 which is a resistance heating element such as a chip resistor is provided integrally with the electrostatic atomizer 131 on a metal pin 134 which is an atomizing electrode connecting member in the vicinity of the atomizing portion 139. Further, in order to detect the temperature of the tip of the atomizing electrode 135, temperature detecting means such as a thermistor 159 is provided on the side closer to the atomizing electrode 135 of the metal pin 134 which is an atomizing electrode connecting member.

  Further, in the vicinity of the atomizing portion 139 of the electrostatic atomizing device 131, there is a heating means for adjusting the temperature of the atomizing electrode 135 as the atomizing tip and the metal pin 134 as the atomizing electrode connecting member. A heater 158 which is a resistance heating element such as a chip resistor is configured.

  In addition, it is more preferable to select the metal pin 134 which is an atomization electrode connection member, the metal material which has the performance of corrosion resistance and rust resistance, or the material which performed surface treatment and coating, such as alumite treatment.

  About the refrigerator comprised as mentioned above, the operation | movement * effect | action is demonstrated below.

  The thickness of the partition wall 414 where the electrostatic atomizer 131 is installed needs a cooling capacity for cooling the metal pin 134 which is an atomizing electrode connecting member to which the atomizing electrode 135 is fixed, The wall thickness of the location where the electrostatic atomizer 131 is provided is configured to be thinner than other portions. Therefore, the metal pin 134 which is an atomization electrode connection member can be cooled by the heat conduction from the freezer compartment which is comparatively low temperature, and the atomization electrode 135 can be cooled. Here, if the tip temperature of the atomizing electrode 135 is set to be equal to or lower than the dew point, water vapor in the vicinity of the atomizing electrode 135 is condensed on the atomizing electrode 135, and water droplets are reliably generated.

  Although not shown here, by installing an internal temperature detection unit, an internal humidity detection unit, and the like in the storage, the dew point can be determined strictly according to changes in the internal environment by a predetermined calculation.

  In this state, the atomizing electrode 135 is set to the negative voltage side, the counter electrode 136 is set to the positive voltage side, and a high voltage (for example, 7.5 kV) is applied between the electrodes by the voltage applying unit 133. At this time, the air insulating layer is destroyed between the electrodes, corona discharge occurs, the water of the atomizing electrode 135 is atomized from the tip of the electrode, and nano-level fine mist having a charge of less than 1 μm that cannot be visually observed, and the accompanying ozone And OH radicals are generated.

  The generated fine mist is sprayed into the vegetable container. The fine mist sprayed from the electrostatic atomizer 131 is negatively charged. On the other hand, vegetables, which are fruits and vegetables, are stored in the vegetable room, and green rape leaves, fruits and the like are also stored therein. These fruits and vegetables are usually stored in a slightly deflated state due to transpiration at the time of purchase return or transpiration during storage. These fruits and vegetables are normally charged with a positive charge, and the sprayed fine mist with a negative charge tends to collect on the vegetable surface. Therefore, the sprayed fine mist makes the vegetable room highly humid again and at the same time adheres to the surface of the fruits and vegetables, suppresses the transpiration from the fruits and vegetables, and improves the freshness. In addition, it penetrates into the tissues through the gaps between the cells of vegetables and fruits, the water evaporates, the water is supplied again into the deflated cells, the deflation is eliminated by the cell swelling pressure, and it returns to a crispy state .

  Moreover, the generated fine mist holds ozone, OH radicals, etc., and these hold strong oxidizing power. Therefore, the generated fine mist can deodorize the vegetable room and antibacterial and sterilize the vegetable surface. At the same time, it can oxidatively decompose and remove harmful substances such as agricultural chemicals and wax adhering to the vegetable surface.

  As described above, in the ninth embodiment, the refrigerator body has a plurality of storage rooms, and the storage room provided with the atomization part on the top side of the vegetable room, which is the storage room provided with the atomization part. A freezing room, which is a cold storage room kept at a lower temperature than a certain vegetable room, was provided, and the atomization section was attached to the partition wall on the top side of the vegetable room.

  By this, when there is a freezing temperature zone storage room such as a freezing room or ice making room in the upper part of the storage room equipped with the atomization part, by installing the atomization part on the partition wall of the top surface that partitions them, The metal pin, which is the atomizing electrode connection member of the atomizing section, is cooled by the cool air in the upper storage chamber, and the atomizing electrode 135 can be cooled and condensed, so a special cooling device is unnecessary and a simple configuration Since an atomization part can be provided, the atomization part with few failures and high reliability can be realized.

  A partition wall for partitioning the storage room and a low-temperature storage room on the top surface side of the storage room, and the electrostatic atomizer is attached to the partition wall on the top surface, so that it looks like a freezer room or ice making room If the storage room of the freezing temperature zone is at the top, it is installed on the partition wall of the top surface that partitions them, and the atomization electrode of the electrostatic atomizer can be cooled and condensed by the cooling source. A cooling device is unnecessary, and since it can be sprayed from the top surface, it can be easily diffused throughout the storage container.

  Moreover, since the atomization part 139 is not provided in the storage space of the vegetable compartment 107 but is provided in the back side of the vegetable compartment side partition plate 173, since it is hard to touch a human hand, safety can be improved.

  Moreover, the atomization part of this Embodiment produces | generates mist by an electrostatic atomization system, and generates fine mist by dividing | segmenting and subdividing a water droplet using electric energy, such as a high voltage. The generated mist has a charge, so by giving the mist the opposite charge to the object you want to attach, such as vegetables and fruits, for example, the mist with a negative charge is added to the positively charged vegetables. Spraying improves adhesion to vegetables and fruits, so that the mist adheres more uniformly to the vegetable surface and improves the mist adhesion rate compared to non-charged mists. I can do it. In addition, the sprayed fine mist can be directly sprayed on the food in the vegetable container, and the fine mist can be attached to the vegetable surface using the potential of the fine mist and the vegetable, so the freshness is efficiently maintained. Can be improved.

  Furthermore, the makeup water of this embodiment uses condensed water instead of tap water supplied from the outside. Therefore, there is no mineral component or impurity, and deterioration of the water retention due to clogging of the tip of the atomizing electrode or clogging can be prevented.

  Furthermore, since the mist of the present embodiment contains radicals, agricultural chemicals and wax adhering to the vegetable surface can be decomposed and removed with an extremely small amount of water, so that water can be saved and input can be reduced.

  In this embodiment, no air conveying means is installed in the mist air passage, but it is possible to further transport the humid air in the air passage and improve the atomization efficiency. it can. At this time, it is preferable to install an air conveying means such as a fan between the atomizing electrode and the suction port. This prevents the generated mist from being obstructed by the fan blades and the like, and can be efficiently sprayed into the storage chamber.

  As described above, the refrigerator according to the present invention can be applied not only to household or commercial refrigerators or vegetable storage, but also to applications such as low-temperature distribution of food such as vegetables and warehouses.

The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention The front view of the vegetable compartment vicinity of the refrigerator in Embodiment 1 of this invention 2 is a detailed cross-sectional view of the vicinity of the electrostatic atomizer of AA portion in FIG. 2 according to Embodiment 1 of the present invention. The figure which shows the experimental result which showed the discharge current monitor voltage value which shows the temperature behavior and atomization state of the atomization electrode in Embodiment 1 of this invention The figure which shows the experimental result which showed the dew condensation appropriate range calculated | required from the correlation of the atomization electrode temperature and the atomization electrode vicinity humidity in Embodiment 1 of this invention. The figure which shows an example of the control flow in Embodiment 1 of this invention Detailed sectional view of the vicinity of the electrostatic atomizer in Embodiment 2 of the present invention Detailed sectional view of the vicinity of the electrostatic atomizer in Embodiment 3 of the present invention Sectional drawing of the vegetable compartment vicinity of the refrigerator in Embodiment 4 of this invention The top view of the partition wall of the BB part of FIG. 9 in Embodiment 4 of this invention The front view of the partition wall of CC section of Drawing 10 in Embodiment 4 of the present invention Longitudinal sectional view near the ultrasonic atomizer of a conventional refrigerator The expanded perspective view which shows the principal part of the conventional ultrasonic atomizer of a refrigerator

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 107 Vegetable room 110 Cooling room 111 Back surface partition wall 112 Cooler 131 Electrostatic atomizer 133 Voltage application part 134 Metal pin (Atomization electrode connection member)
135 Atomization electrode 136 Counter electrode 137 Outer case 138 Humidity supply port 139 Atomization part 146 Refrigerator control means 158 Resistance heating element (heater)
159 Temperature detection means

Claims (6)

  Cooling the storage chamber partitioned by heat insulation, an atomization section for spraying mist in the storage chamber, an atomization tip section sprayed with mist provided in the atomization section, and the atomization tip section below a dew point Adjusting means having a cooling means and a heating means for condensing moisture in the air at the atomizing tip and spraying it as a mist in the storage chamber and adjusting the amount of water adhering to the atomizing tip, and the fog A temperature detecting means for detecting the temperature of the gasifying section, comprising an electrode connecting member thermally connected to the atomizing section, the heating means being fixed to the electrode connecting member, and the electrode being adjusted by the adjusting means The refrigerator which controls the temperature of the said atomization front-end | tip part indirectly by cooling or heating a connection member.   The refrigerator main body has a plurality of storage chambers, a cooling chamber for storing a cooler for cooling the storage chamber, and a partition wall for insulating and partitioning the cooling chamber and the storage chamber, and an atomizing unit The refrigerator according to claim 1, which is attached to a partition wall on the cooling chamber side.   The refrigerator body has a plurality of storage chambers, and a low temperature storage chamber maintained at a lower temperature than the storage chamber provided with the atomizing portion is provided on the top side of the storage chamber provided with the atomizing portion. The refrigerator according to claim 1 or 2, wherein the conversion unit is attached to a partition wall on the top surface side of the storage room provided with the atomization unit.   The refrigerator main body has at least one air passage for conveying cold air to the storage room or the cooling chamber, and the cooling means provided in the adjusting means uses the cold air generated in the cooling chamber. A refrigerator according to claim 1.   The atomization unit includes an atomization electrode and a counter electrode disposed at a position facing the atomization electrode, and has a voltage application unit that generates a high-voltage potential difference between the atomization electrode and the counter electrode. The refrigerator as described in any one of 1-4.   The refrigerator according to claim 5, further comprising a storage chamber and a holding member provided in the storage chamber and grounded to a reference potential portion, wherein the voltage application unit generates a potential difference between the atomizing electrode and the holding member. .