JP2011196608A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that there is little deodorizing effect of air in an upstream side of a refrigeration chamber than a deodorizing device because a deodorization means is set up in a cold air return course of a refrigeration chamber.SOLUTION: By arranging an atomizer that sprays mist to the upstream side of a storage chamber than the cold air, the mist with sterilizing and deodorizing effect sprayed from the atomizer can be diffused in spaces of a cold air circulation path and two or more storage chambers up to a cooling means.

Description

  The present invention relates to a refrigerator provided with an atomizing device for sterilizing and deodorizing the space of a storage room for food and vegetables.

  In recent years, since various ingredients in various regions are stored in refrigerators, there is a very high need for deodorization and sterilization in food stored in refrigerators.・ For the purpose of deodorization, development of sterilization / deodorization equipment using various methods is in progress.

  As a conventional sterilization apparatus, there is a sterilization apparatus that disposes a filter in an air passage and performs sterilization / deodorization in the air passing through the filter (see, for example, Patent Document 1). In addition, as a sterilization device using a conventional photocatalyst, a filter-like member carrying titanium oxide is irradiated with ultraviolet rays, and the organic substances in the refrigerator are oxidized and decomposed using a photocatalytic reaction to sterilize and deodorize. There are several ways to do this.

  Hereinafter, the conventional sterilization apparatus will be described with reference to the drawings.

  FIG. 4 is a partial vertical cross-sectional view of a conventional refrigerator in which a sterilization apparatus is attached to the refrigerating room return air suction section.

  The sterilization apparatus shown in FIG. 4 includes a sterilization filter 1, a deodorization filter 1, a deodorization filter 2, and a mounting frame 3. Here, the sterilization filter 1 is formed by mixing a zeolite composed of oxides of silicon, aluminum, sodium, and the like into a honeycomb shape, and the number of cells is 100 to 250 per square inch in relation to ventilation resistance. An aperture ratio of 70 to 80% and a thickness of about 8 mm are used.

  The deodorizing filter 2 is formed by mixing manganese oxide and silicon or aluminum oxide into a honeycomb shape. In this case, the number of cells and the aperture ratio are often almost the same as those of the sterilizing filter. The sterilizing filter 1 and the deodorizing filter 2 are integrally fixed by a mounting frame 3.

  In FIG. 4, a freezer compartment 5 is disposed at the top of the refrigerator, a refrigerator compartment 6 is disposed below the refrigerator compartment, and a cooler 11 is disposed behind the refrigerator compartment 5 and refrigerator compartment 6. Further, a cool air passage 9 is disposed in the heat insulating portion 8 between the freezer compartment 5 and the refrigerator compartment 6, and the cool air passage 9 is deodorized on the suction portion 7 side and on the back side of the disinfection filter 1. The filter 2 is integrally provided.

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

  A part of the cold air generated by the cooler 11 flows into the freezer compartment 5, and a part of it flows into the refrigerator compartment 6 and other storage rooms below. The cold air circulated through each part goes from the return air suction part 7 to the cooler 11 through the cold air passage 9. The wind speed in the cool air passage 9 at this time is about 0.5 m / sec.

  The cooler passing through the cool air passage 9 is sterilized and deodorized by the sterilization apparatus. Specifically, first, bacteria and mold spores are captured together with dust and dust by the sterilization filter 1, and chemical changes of odorous components are advanced by the deodorization filter 2 to perform deodorization.

  As described above, downsizing is achieved by combining deodorizing and sterilizing filters, and by disposing the sterilizing / deodorizing filter in the cool air passage, sterilization / deodorizing can be efficiently performed with respect to the entire atmosphere in the refrigerator. . Therefore, a clean refrigerator free from germs and bad odor can be realized.

JP-A-5-157444

  However, in the above conventional configuration, since the deodorizing means is installed in the return air path of the cold air in the refrigerator compartment, there is a problem that there is no effect of deodorizing the air in the refrigerator compartment. Further, since the sterilization / deodorizing filter is installed so as to block the inside of the return air passage of the cold air, it becomes an air passage resistance in the longitudinal passage of the cold air. Therefore, in order to obtain a cooling performance equivalent to that without the filter, it is necessary to increase the ability of the fan 10 for forcibly circulating the cool air.

  However, increasing the fan's ability is not desirable because it goes against noise and energy saving problems.

  This invention solves the said conventional subject, and it aims at providing the refrigerator which can acquire the effect of disinfection and deodorizing a some store room efficiently.

  In order to solve the above-described conventional problems, the refrigerator of the present invention includes a box body that is formed of a heat insulating material and forms a plurality of storage chambers therein, and a door body that is attached to the opening of the box body so as to be freely opened and closed. A cooling means for cooling the air in the box body to generate cold air, and a cold air circulation path for circulating the cold air between the storage chamber and the cooling means by a fan, An atomizing device for spraying mist is arranged on the upstream side.

  Accordingly, the mist having the sterilizing / deodorizing effect is sprayed from the upstream side of the cool air in the storage chamber and diffused into the storage chamber together with the cool air, so that the storage chamber can be sterilized / deodorized.

  The refrigerator of this invention can disinfect and deodorize the space of storage rooms, such as a foodstuff and vegetables, by installing the atomization apparatus.

Front view of refrigerator storage room in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator storage chamber in Embodiment 1 of this invention Sectional drawing of the atomization apparatus in Embodiment 1 of this invention Vertical section of a conventional refrigerator storage room

  According to a first aspect of the present invention, there is provided a box body formed of a heat insulating material and forming a plurality of storage chambers therein, a door body that is openably and closably attached to an opening of the box body, and cooling the air in the box body. A nebulizer that includes a cooling means for generating cold air, a cold air circulation path for circulating the cold air between the storage chamber and the cooling means by a fan, and sprays mist upstream of the cold air flow path in the storage chamber Is arranged.

  Accordingly, the mist having the sterilizing / deodorizing effect is sprayed from the upstream side of the cool air in the storage chamber and diffused into the storage chamber together with the cool air, so that the storage chamber can be sterilized / deodorized.

  In the second invention, the atomizing device is a storage chamber at the upper part of the box body, and is installed on the upstream side of the cool air in the storage chamber.

  As a result, the mist that flows from the upstream side of the upper storage chamber where the atomizer is installed diffuses in the storage chamber, and further, the mist flows to the lower side according to the flow of cold air and gravity, and also contains the mist. Cold air passes through the air passage connecting the upper storage chamber and the lower storage chamber, flows into the storage chamber in the lower part of the downstream side, and mist diffuses in the storage room in the lower part, except for the storage room where the atomizer is installed The storage room can be sterilized and deodorized.

  In the third aspect of the present invention, no metal parts are placed between the storage chamber and the air passage from the upstream storage chamber where the atomization device is installed to the cooler downstream of the cold air.

  As a result, the mist does not disappear significantly due to the absence of metal parts, so storage from the space without metal parts, that is, the upstream storage room where the atomizer is installed, to the cooler downstream of the cold air. The air between the room and the air passage can be sterilized and deodorized by mist.

  4th invention installs a metal component in the downstream of the air channel which installed the atomization apparatus.

  As a result, the mist disappears due to the metal parts located on the most downstream side of the cold air, so that the mist hardly remains in the most upstream cold air flowing from the cooler to the storage room again, so the atomizer installed in the storage room Thus, when a new mist is always generated, the concentration of the mist can be kept substantially constant without becoming too high in the storage chamber.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the same reference numerals are given to the same formation as the conventional example or the above-described embodiment, and detailed description thereof will be omitted. The present invention is not limited to the embodiments.

(Embodiment 1)
1 is a front view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a longitudinal sectional view of a refrigerator storage chamber according to Embodiment 1, and FIG. It is a cross section.

  As shown in FIG. 1, the refrigerator 100 according to the first embodiment is a refrigerator including a door that is a double door type door, and includes a plurality of storage compartments in a heat insulating box 101 that is a box body. Yes.

  The compartment of the refrigerator 100 is referred to as a refrigeration room 102, an ice making room 105, a switching room 106 that can change the temperature inside the ice making room 105, a vegetable room 104, a freezing room 103, and the like depending on its function (cooling temperature). The

  At the front opening of the refrigerator compartment 102, a rotary heat insulating door 107 filled with a foam heat insulating material such as urethane is provided.

  In addition, the ice making chamber 105, the switching chamber 106, the vegetable chamber 104, and the freezing chamber 103 are each provided with a heat insulating plate 108 serving as a front plate of the drawer.

  FIG. 2 is a longitudinal sectional view of the refrigerator storage chamber according to Embodiment 1 of the present invention, showing a state cut along A-A in FIG. 1.

  In FIG. 2, the refrigerator 100 is a box body in which a heat insulating box body 101 is formed by filling a heat insulating material such as hard foam urethane between an outer box and an inner box. This heat insulation box 101 insulates the inside of the heat insulation box 101 from the periphery.

  The refrigerator compartment 102 is a storage compartment maintained at a temperature that does not freeze for refrigerated storage. The lower limit of the specific temperature is usually set at 1 ° C to 5 ° C.

  Further, an atomizing device 200 for spraying mist is installed in the vicinity of the discharge port 130 on the upstream side of the cold air flow path in the refrigerator compartment 102, and sterilization and deodorization of the cold air discharged into the refrigerator compartment 102 is performed. Yes. Thereby, the cold air circulating in the refrigerator 100 is sterilized and deodorized. Moreover, since the cold air in the refrigerator compartment 102 also circulates in the vegetable compartment 104, the cooler circulating in the vegetable compartment 104 is also sterilized and deodorized. A specific configuration of the atomizer 200 will be described later with reference to FIG.

  The vegetable room 104 is a storage room that is set to a temperature that is equal to or slightly higher than that of the refrigerator room 102. Specifically, it is set at 2 ° C to 7 ° C. In addition, it is possible to maintain the freshness of leafy vegetables for a long time, so that it becomes low temperature.

  The freezer compartment 103 is a storage room set in a freezing temperature zone. Specifically, although it is normally set at −22 ° C. to −15 ° C. for frozen storage, it may be set at a low temperature of, for example, −30 ° C. or −25 ° C. in order to improve the frozen storage state. is there.

  The switching chamber 106 can be switched from a refrigeration temperature zone to a refrigeration temperature zone according to the use by an operation panel (not shown) attached to the refrigerator 100. In some cases, it is a storage room dedicated to freezing and for rapidly freezing food.

  The ice making room 105 is a storage room that is located in the back of the switching room and stores ice produced by an ice making machine (not shown) provided in the refrigerator compartment 102. It is to be noted that ice is made by an automatic ice maker (not shown) provided at the upper part of the room with water sent from a water storage tank (not shown) in the refrigerator compartment 102, and an ice storage container (not shown) arranged at the lower part of the room. ) And a storage room provided with an independent door with a small frontage provided side by side in the upper freezing room 122, and is often provided with a drawer-type door.

  The top surface portion of the heat insulation box 101 is formed with a recess 113 so as to be stepped toward the back surface of the refrigerator 100, and includes a first top surface portion 111 and a second top surface portion 112. The step-shaped recess 113 houses components such as the compressor 114 and a dryer (not shown) for removing moisture, as well as components on the high-pressure side of the refrigeration cycle.

  That is, the recess 113 in which the compressor 114 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 102. Therefore, the compressor 114 is not disposed in the rear region of the lowermost storage chamber of the heat insulating box 101 that has been generally used conventionally.

  In the present embodiment, the matters relating to the main part of the invention described below are the types in which a compressor is disposed by providing a machine room in the rear region of the lowermost storage chamber of the heat insulation box 101 that has been generally used conventionally. It may be applied to other refrigerators.

  A cooling chamber 115 is provided on the back surface of the freezing chamber 103. The cooling chamber 115 is partitioned from the freezing chamber by a first partition plate 116 having heat insulation as a partition wall. Moreover, between the freezer compartment 103 and the vegetable compartment 104, the 2nd partition plate 117 which has the heat insulation as a heat insulation partition wall is arrange | positioned.

  Since the first partition plate 116 and the second partition plate 117 are parts that are assembled after the heat insulation box 101 is fired, foamed polystyrene is usually used as a heat insulating material, but is hard to improve heat insulation performance and rigidity. Foamed urethane may be used, and further vacuum insulation with high thermal insulation properties may be inserted to further reduce the partition structure.

  Also, the third partition plate 118 that is the top surface portion of the ice making chamber 105 and the switching chamber 106 and the fourth partition plate 119 that are the bottom surface portion of the ice making chamber 105 and the switching chamber 106 that are arranged in parallel are integrally formed with the same foaming heat insulating material as the heat insulating box body 101. Yes.

  The cooling chamber 115 includes an evaporator 120 as a cooling means. The cooling chamber 115 is disposed vertically on the rear surface of the freezing chamber 103.

  A cooling fan 121, which is a fan, is disposed in the upper space of the evaporator 120. The cooling fan 121 blows the cool air cooled by the evaporator 120 and forcibly convects the cool air to each storage chamber.

  Inside the refrigerator 100, a circulation path for forcibly circulating cool air is formed. Specifically, the cold air cooled by the evaporator 120 is forced into a blowing state by the cooling fan 121 and is carried to each room through a duct provided between each storage room and the heat insulating box 101. Heat is exchanged in the chamber and returned to the evaporator 120 through the suction duct.

  Note that the cooling air is circulated by one cooling fan 121.

  Below, the outline | summary of the circulation path | route of the cold air in the refrigerator 100 is demonstrated.

  The cold air cooled by the evaporator 120 is sent to the refrigerator compartment 102. However, the cool air cooled by the evaporator 120 is cooled to a temperature that can sufficiently cope with the freezer compartment 103. Therefore, if cold air is blown into the refrigerating chamber 102 as it is, the refrigerating chamber 102 becomes too low in temperature. Therefore, a twin damper, which is a damper capable of controlling the insertion of the cold air, is provided in the cold air circulation path including the refrigerator compartment 102.

  That is, the cold air cooled by the evaporator 120 is controlled to be inserted by the twin damper 128 and does not always circulate through the path of the refrigerator compartment 102 and the vegetable compartment 104. Further, when the entire refrigerator 100 is sufficiently cooled, the rotation of the cooling fan 121 is stopped and the circulation of the cold air is also stopped. At this time, the cooling cycle, that is, the compressor 114 is also stopped.

  The cold air cooled by the evaporator 120 passes through a refrigerating room discharge duct 129 called a cold air circulation path or duct as needed, and is discharged to the refrigerating room 102 through a discharge port 130 opened at the top of the refrigerating room 102. . The cool air discharged from the discharge port 130 is combined with the mist discharged from the atomizing device 200 and diffused throughout the refrigerator compartment 102.

  Cold air containing mist that has passed through the refrigerator compartment 102 is sucked into a recovery port 131 that opens at the bottom of the refrigerator compartment 102. Next, the cold air containing the mist sucked into the collection port 131 is discharged to the vegetable compartment 104, and the mist is diffused throughout the vegetable compartment. Finally, the cold air containing the mist that has passed through the vegetable compartment 104 returns to the evaporator 120 again.

  The mist sprayed from the atomizing apparatus 200 is, for example, about 0.005 μm to 20 μm and very fine nano-level particles. In addition, mist holds OH radicals, ozone, etc., adheres to food and vegetables stored in a positively charged interior wall or storage room, and sterilizes against mold fungi, E. coli, anti-viruses, In addition to its antibacterial and antibacterial effects, it also encourages vegetables to increase nutrients such as vitamins by removing agricultural chemicals by oxidative degradation and by antioxidants. In addition to the fine mist, the OH radicals and ozone generated simultaneously with the generation of mist have effects such as deodorization of the storage room, removal of harmful substances, and antifouling. Therefore, the above-mentioned effect can be exhibited in the refrigerator compartment 102, the vegetable compartment 104, and the air passage connecting them, which are storage rooms in which mist sprayed from the atomizer is floating.

  In addition, since the mist sprayed from the atomizer does not have metal parts between the storage room and the air passage to the evaporator, there is no metal parts, that is, the upstream side where the atomizer is installed. Since the mist is retained in the air between the storage chamber and the cooler downstream of the cool air from the storage chamber and the air path, the mist can be sterilized and deodorized in the space where the mist is present.

  In addition, since the evaporator 120 is a metal part, the mist having radicals reacts with the metal part and disappears in the evaporator 120 which is the most downstream side of the cold air, so that it flows most from the cooling chamber 115 to the refrigerating room 102 again. Since almost no mist remains in the upstream cold air, when new mist is always generated by the atomizing device 200 installed in the refrigerator compartment 102, the concentration in the refrigerator compartment 102 does not become too high, and OH radical The concentration of fine mist containing ozone and ozone can be kept almost constant.

  In the ice making chamber 105 and the switching chamber 106, the circulation of the cold air is controlled by a damper that intermittently controls the discharged cold air, and the temperature of each chamber is controlled. Each of the refrigerator compartment 102, the ice making compartment 105, and the switching compartment 106 is equipped with a temperature sensor (not shown) for controlling the internal temperature, and the damper is opened and closed by a control base 122 attached to the back of the refrigerator 100. Is controlled.

  That is, when the temperature sensor is higher than a preset first temperature, the damper is opened, and when the temperature sensor is lower than the second temperature, the damper is closed to adjust the internal temperature to a predetermined temperature.

  The ice making room damper 123 for intermittently controlling the ice making room 105 is installed in the upper part of the cooling room 115, and the cool air blown from the cooling fan 121 passes through the ice making room damper and the ice making room discharge duct 124a into the ice making room 105. After being discharged and heat exchanged, it returns to the evaporator 120 via the ice making chamber return duct 124b.

  The twin damper 128 includes a refrigeration room flap 125 for intermittently injecting cold air into the refrigeration room 102, a switching room flap 126 for intermittently injecting cold air into the switching room 106, and a motor unit 127 that also drives the flaps. And. The twin damper 128 is installed around the back of the ice making chamber 105 and the switching chamber 106.

  Next, the refrigerator atomization apparatus 200 of the present invention will be briefly described.

  FIG. 3 is a cross-sectional view of the atomizing device in the embodiment of the present invention.

  The atomization apparatus 200 is mainly configured by an atomization unit 539, a voltage application unit 533, and an outer case 537, and a spray port 532 and a humidity supply port 538 are configured in part of the outer case 537. The atomizing portion 539 is provided with an atomizing electrode 535 that is an atomizing tip, and the atomizing electrode 535 is fixedly connected to a cooling pin 534 that is a heat transfer cooling member made of a good heat conducting member such as aluminum or stainless steel. is doing.

  The atomizing unit 539 is provided with an atomizing electrode 535, the atomizing electrode 535 is an electrode connecting member made of a good heat conducting member such as aluminum, stainless steel, or brass, and the atomizing electrode 535 is substantially at one end of the cooling pin 534. It is fixed to the central part and is electrically connected including one end wired from the voltage application part 533.

  The material is preferably a high heat conductive member such as aluminum or copper, and it is desirable that the periphery of the cooling pin 534 is covered with a heat insulating material 552 in order to efficiently transfer the cold heat from one end to the other end.

  Further, by attaching an atomizing electrode 535 that is an atomizing tip on the central axis of the cooling pin 534, when the cooling pin 534 is attached, the distance between the counter electrode 536 and the atomizing electrode 535 is kept constant even if the cooling pin 534 is rotated. And a stable discharge distance can be secured.

  A cooling pin 534, which is a heat transfer cooling member, is fixed to the outer case 537, and the cooling pin 534 itself has a convex portion 534a protruding from the outer shell. The cooling pin 534 has a shape having a convex portion 534 a on the opposite side to the atomizing electrode 535, and the convex portion 534 a is fitted into the deepest concave portion 511 b deeper than the concave portion 511 a of the back partition wall 511.

  Therefore, the deepest concave portion 511b that is deeper than the concave portion 511a is provided on the back side of the cooling pin 534 that is a heat transfer cooling member, and the heat insulating material 552 is on the cooling chamber 510 side of the heat insulating material 552, that is, the discharge air passage 541 side. Is thinner than the other part of the rear partition wall 511 on the back side of the vegetable room 507, and this thin heat insulating material 552 is used as a heat relaxation member, and the cool air in the cooling chamber 510 from the back surface is a heat relaxation member. The cooling pin 534 is installed to be cooled via the 552.

  In addition, the cooling pin 534 that is a heat transfer cooling member uses cooling air generated in the cooling chamber 510, and the cooling pin 534 is formed of a metal piece having good thermal conductivity. The cooling necessary for the condensation of the atomizing electrode 535, which is the atomizing tip, can be performed only by heat conduction from the air path through which the cold air generated in 512 flows, and the condensation can be generated.

  Thus, since the antibacterial device which sprays mist with a simple structure can be constituted, it is possible to realize atomization with few failures and high reliability. Moreover, since the cooling pin 534 which is a heat transfer cooling member and the atomization electrode 535 which is an atomization front-end | tip part can be cooled using the cooling source of a refrigerating cycle, it can atomize with energy saving. .

  In addition, a donut disk-like counter electrode 536 is attached to the storage chamber (refrigeration chamber 102) side at a position facing the atomizing electrode 535 so as to maintain a certain distance from the tip of the atomizing electrode 535, and the extension A spray port 532 is formed.

  Further, a voltage application unit 533 is configured in the vicinity of the atomization unit 539, and the negative potential side of the voltage application unit 533 that generates a high voltage is electrically connected to the atomization electrode 535 and the positive potential side is electrically connected to the counter electrode 536, respectively. Yes.

  The counter electrode 536 is made of, for example, stainless steel, and it is necessary to ensure its long-term reliability. In particular, surface treatment such as platinum plating is desirable in order to prevent foreign matter adhesion and contamination.

  In addition, heating means 554 such as a heater is provided on the rear partition wall surface 551 to which the atomizing device 200 is fixed in order to adjust the temperature of the storage chamber (refrigeration chamber 102) or prevent surface condensation. It is installed between the partition wall surface 551 and the heat insulating material 552.

  About the atomization apparatus 200 of this Embodiment 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 a control board (not shown) according to the set temperature in the cabinet, and the cooling operation is performed. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 509 is condensed to some extent by a condenser (not shown), and is further arranged on the side surface and rear surface of the refrigerator main body (heat insulating box body 501) and on the front opening of the refrigerator main body. Condensed liquid is formed while preventing condensation on the refrigerator main body via a refrigerant pipe (not shown) provided, and reaches a capillary tube (not shown). After that, the capillary tube is depressurized while exchanging heat with a suction pipe (not shown) to the compressor 509 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 512.

  Here, the low-temperature and low-pressure liquid refrigerant is heat-exchanged with the air in each storage chamber such as the discharge air passage 541 conveyed by the operation of the cooling fan 121, and the refrigerant in the cooler 512 is evaporated. At this time, cool air for cooling each storage chamber is generated in the cooling chamber 510. The low-temperature cold air is diverted from the cooling fan 121 to the refrigerating room 102, the switching room 106, the ice making room 105, the vegetable room 104, and the freezing room 103 by using an air passage or a damper, and cooled to respective target temperature zones.

  The vegetable compartment 104 cools the refrigerator compartment 102 and then enters the vegetable compartment 104 from a vegetable compartment outlet (not shown) configured in the middle of the refrigerator compartment return duct 129 a for circulating the air to the cooling compartment 115. It discharges, flows to the outer periphery of an upper stage storage container or a lower stage storage container, cools indirectly, and returns to the cooling chamber 115 again from the vegetable room suction inlet (not shown) after that.

  Here, since the temperature of the refrigerator compartment 102 is 2 ° C. to 7 ° C. and is in a relatively high humidity state due to transpiration from food or the like, if the atomization electrode 535 that is the atomization tip is below the dew point temperature, Water is generated on the atomizing electrode 535 including the tip, and water droplets adhere thereto.

  When there is no water in the atomizing electrode 535, the discharge distance is increased, the air insulating layer cannot be destroyed, and the discharge phenomenon does not occur. As a result, no current flows between the atomizing electrode 535 and the counter electrode 536.

  Moreover, the atomization electrode 535 can be indirectly cooled by cooling the cooling pin 534 which is a heat-transfer cooling member, without directly cooling the atomization electrode 535 which is an atomization front-end | tip part, and heat transfer cooling By making the cooling pin 534, which is a member, have a larger heat capacity than the atomization electrode 535, the direct influence of the atomization electrode 535, which is the atomization tip, is alleviated, and the atomization electrode 535 is reduced. In addition, by playing the role of cold storage, rapid temperature fluctuations of the atomizing electrode 535 can be suppressed, and stable mist spraying can be realized.

  Thus, the atomization electrode 535 can be indirectly cooled by cooling the cooling pin 534 which is a heat transfer cooling member, without directly cooling the atomization electrode 535 which is an atomization front-end | tip part, and heat transfer By making the cooling member have a larger heat capacity than that of the atomizing electrode 535, the temperature change of the cooling means is mitigated from directly affecting the atomizing electrode 535, and the atomization tip is atomized. The electrode 535 can be cooled, the load fluctuation of the atomizing electrode 535 can be suppressed, and a mist spray with a stable spray amount can be realized.

  Since the cooling means can be configured with such a simple structure, it is possible to realize the atomizing portion 539 with few failures and high reliability. Moreover, since the cooling pin 534 which is a heat-transfer cooling member and the atomization electrode 535 which is an atomization front-end | tip part can be cooled using the cooling source of a refrigerating cycle, atomization can be performed with energy saving.

  In addition, since there is a recess 511a in a part of the refrigerator compartment 102 and the atomizing portion 539 is inserted there, there is no effect on the storage amount for storing fruits and vegetables and food, and the heat transfer cooling member The cooling pin 534 can be surely cooled, and the wall thickness that can ensure heat insulation can be secured for the other parts, so that condensation in the outer case 537 can be prevented and reliability can be improved. it can.

  As described above, when an electrostatic atomization method that generates a mist by applying a high voltage to the atomizing electrode 535 can be used, fine mist of a nanometer level can be sprayed. Since OH radicals having a good bactericidal power are encapsulated and sprayed, OH radicals can be retained for a long time, and the sterilization effect is exhibited in the storage chamber after the mist is sprayed. Thus, deodorization in the storage chamber and suppression of bacteria can be performed.

  Further, when fine mist is sprayed from the atomizing electrode 535, an ion wind is generated. At this time, since highly humid air newly flows into the atomizing electrode 535 in the outer case 537 from the humidity supply port 538 provided in the outer case 537, it can be continuously sprayed.

  In the present embodiment, the cooling means for cooling the cooling pin 534 that is the heat transfer cooling member is the cold air cooled by using the cooling source generated in the refrigeration cycle of the refrigerator 100. Heat transfer from a cooling pipe using cold air or cold temperature from a source may be used. Thereby, by adjusting the temperature of this cooling pipe, the cooling pin 534 which is a heat transfer cooling member can be cooled to an arbitrary temperature, and the temperature management when the atomizing electrode 535 is cooled can be easily performed.

  As described above, the refrigerator according to the present invention can be sterilized and deodorized in the storage chamber, so that it can be applied not only to household refrigerators but also to commercial refrigerators, food storages, and cold cars.

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 102 Cold storage room 103 Freezing room 104 Vegetable room 105 Ice making room 106 Switching room 107 Heat insulation door (door body)
108 Heat Insulating Plate 111 First Top Part 112 Second Top Part 113 Recess 114 Compressor 115 Cooling Chamber 116 First Partition Plate 117 Second Partition Plate 118 Third Partition Plate 119 Fourth Partition Plate 120 Evaporator (Cooling means)
121 Cooling fan 128 Damper 129a Cooling room discharge duct (cold air circulation path / duct)
129b Cooling room return duct (cold air circulation path / duct)
200 Atomizer 511a Concave portion 511b Deepest concave portion 512 Cooler 532 Spray port 533 Voltage application portion 534 Cooling pin (heat transfer cooling member)
535 Atomization electrode 534a Convex part 536 Counter electrode 537 Outer case 538 Humidity supply port 539 Atomization part 541 Discharge air channel 546 Control means 551 Back surface partition wall surface 552 Heat insulation material 554 Heating means

Claims (4)

A box body that is formed of a heat insulating material and forms a plurality of storage chambers therein, a door body that is openably and closably attached to an opening of the box body, and a cooling means that cools air in the box body and generates cold air And a refrigerator having a cold air circulation path for circulating the cold air between the storage chamber and the cooling means by a fan, and an atomizing device for spraying mist on the upstream side of the cold air flow path in the storage chamber. The refrigerator according to claim 1, wherein the atomizing device is in a storage chamber at an upper part of the box body and is installed on the upstream side of the cool air in the storage chamber. The refrigerator according to claim 2, wherein no metal parts are placed between a storage chamber and an air passage from an upstream storage chamber where the atomizer is installed to a cooler downstream of the cold air. The refrigerator according to claim 3, wherein a metal part is installed downstream of the air passage in which the atomizing device is installed.

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