JP2011226758A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that mist is supplied only to a storage compartment where an atomizer is provided and it can not be supplied to the other storage compartments in a refrigerator, and antibacterial effect on bacteria in the storage compartments, cold deodorization in the storage compartments as mist effects, can not be exhibited in all the storage compartments in a refrigerator spraying mist using the atomizer.SOLUTION: A mist spray device 131 is contained in an external case 127 provided within the storage compartment, and the external case 127 is connected to a suction opening 126. If the mist is sprayed by the mist spray device 131 when at least a cooling fan 203 is operated, the mist is supplied to the other storage compartments utilizing forced convection by the fan 203. As a result, the mist effects can be obtained in all the storage compartments.

Description

  The present invention relates to a refrigerator in which an atomizer is installed in a storage room space.

  In recent years, some refrigerators for home use have the purpose of preserving foods such as vegetables, and by reducing the moisture content of foods by increasing the humidity in the cabinet, the preservation is improved. Here, there exists what sprays mist as a humidification means in a store | warehouse | chamber.

  Conventionally, a refrigerator equipped with this type of mist spraying function generates and sprays mist with an ultrasonic atomizer when the storage chamber is low in humidity, suppresses transpiration of vegetables and moisture loss of food. (For example, refer to Patent Document 1).

  FIG. 18 shows a refrigerator provided with a conventional ultrasonic atomizer described in Patent Document 1. FIG. 19 is an enlarged perspective view showing a main part of the ultrasonic atomizer.

  As shown in the figure, the front opening of the vegetable compartment 21 which is one of the storage compartments provided in the refrigerator main body 20 is closed by a drawer door 22 which 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.

  In addition, the ultrasonic atomizer 5 is provided with 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.

  The cold 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 internal 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, since the water or ozone water is atomized by the ultrasonic vibration element, the atomized water particles or ozone water particles are not fine and the particles are large, and thus the mist is heavy. Therefore, the diffusibility is low and it cannot be sprayed by being diffused in the cabinet, and is sprayed only in the vegetable room where the ultrasonic atomizer 5 and the ozone water mist device are provided.

  Also, when water spray or ozone water particles are supplied to other storage chambers by natural diffusion, increasing the spray amount or continuous spraying causes food such as vegetables to rot, or condensation in the storage There is a problem that deterioration of freshness and quality are concerned.

  By supplying mist particles not only to the storage chamber provided with the mist spraying device but also to other storage chambers, the present invention adheres to the wall surface of the storage chamber and the surface of the food contained in the entire storage chamber of the refrigerator. An object of the present invention is to provide a refrigerator capable of performing antibacterial activity on bacteria and deodorizing cold air in a storage room caused by food or the like.

  In order to solve the above-described conventional problems, a refrigerator according to the present invention sprays mist, a plurality of storage chambers that are thermally insulated, a cooling chamber that houses a cooler and is connected to the plurality of storage chambers via an air passage. The mist spraying device, the mist spraying device is a spray method using corona discharge to apply a voltage, and has a mist dedicated section in at least one of the plurality of storage chambers, This is provided with a flow dividing section capable of switching the storage chamber for supplying the mist stored in the mist dedicated section.

  As a result, the mist generated from the mist spraying device is filled in the mist-dedicated compartment first, and then switched to the necessary storage room by the diverter, so that it can be reliably supplied. It is possible to provide a refrigerator in which mist is supplied.

  The refrigerator of the present invention can provide a refrigerator with a configuration in which mist is supplied to a plurality of storage rooms as needed, so that any storage room can exert a useful effect by mist spraying and preserve. The refrigerator which improved the property can be provided.

The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention Sectional drawing of the principal part of the mist spraying apparatus in the refrigerator of Embodiment 1 of this invention The schematic diagram which shows the positional relationship of the air path and each store room in the refrigerator of Embodiment 1 of this invention. Sectional drawing which shows arrangement | positioning of the suction cover and outer case in the refrigerator of Embodiment 1 of this invention Top view of vegetable room in refrigerator of embodiment 1 of the present invention Timing chart which shows the control pattern of the mist spraying apparatus in the refrigerator of Embodiment 1 of this invention Longitudinal sectional view of the refrigerator in the second embodiment of the present invention The schematic diagram which shows the positional relationship of the air path and each store room in the refrigerator of Embodiment 2 of this invention. Sectional drawing which shows arrangement | positioning of the suction cover and outer case in the refrigerator of Embodiment 2 of this invention Sectional drawing which shows arrangement | positioning of the suction cover and outer case in the refrigerator of Embodiment 3 of this invention The top view of the vegetable compartment in the refrigerator of Embodiment 3 of this invention Three-dimensional view showing the structure of the outer cover in the refrigerator of the third embodiment of the present invention Sectional drawing which shows arrangement | positioning of the suction cover and outer case in the refrigerator of Embodiment 4 of this invention The top view of the vegetable compartment in the refrigerator of Embodiment 4 of this invention Three-dimensional view showing the structure of the outer cover in the refrigerator of the fourth embodiment of the present invention Three-dimensional view showing an example of the shape of the mist diffusion regulator in the refrigerator according to the fourth embodiment of the present invention. FIG. 17 is a longitudinal sectional view of a part of a refrigerator according to Embodiment 5 of the present invention. Vertical section of a vegetable room in a conventional refrigerator The expanded perspective view which shows the principal part of the ultrasonic atomizer provided in the vegetable compartment of the conventional refrigerator

The first invention includes a plurality of storage chambers that are insulated and partitioned, a cooling chamber that houses a cooler and is connected to the plurality of storage chambers via an air passage, and a mist spraying device that sprays mist.
The mist spraying device is a spraying method using corona discharge to apply a voltage,
A mist-dedicated compartment in at least one of the plurality of storage rooms;
A diversion part is provided that can switch a storage chamber that supplies mist stored in the mist-dedicated section.
As a result, the mist generated from the mist spraying device is filled in the mist-dedicated compartment first, and then switched to the necessary storage room by the diverter, so that it can be reliably supplied. It is possible to provide a refrigerator in which mist is supplied.

  According to a second aspect of the present invention, the flow dividing section includes a cooling fan, and the storage chamber for supplying mist is switched depending on whether or not the cooling fan is activated.

  This makes it possible to use a cooling fan, which is a component in the refrigeration cycle, to divide the mist by forced convection in the cold air flow, and to ensure that the mist can be delivered to any storage room as needed with a simple configuration. Supply can be performed.

  According to a third aspect of the present invention, when the cooling fan is not operating, the mist is sprayed to the storage chamber provided with the mist spraying device, and when the cooling fan is operating, the mist spraying device is provided. It is a refrigerator in which mist is sprayed to other storage rooms other than the stored storage room.

  As a result, when the cooling fan does not operate, the mist is surely sprayed to the storage chamber equipped with the mist spraying device, and the cooling fan is operated to supply mist to any storage chamber as required. Therefore, the storage chamber for supplying mist can be switched with a simpler configuration.

  According to a fourth aspect of the present invention, there is provided a refrigerator in which the flow dividing portion includes a damper, and the storage chamber for supplying mist is switched by opening and closing the damper.

  Thus, the mist can be diverted using a damper, which is a component in the refrigeration cycle, and the mist can be reliably supplied to an arbitrary storage chamber as necessary with a simple configuration.

  In addition, the distribution of the generated mist to each storage room can be controlled more accurately. In particular, it is easy to adjust the mist spray amount in the storage chamber provided with the mist spray device, and the operation can be performed by a simple operation of opening and closing the damper device according to the amount of the mist spray amount.

  According to a fifth aspect of the present invention, when the damper is provided in the air passage and the damper is closed, the mist is sprayed into the storage chamber provided with the mist spraying device, and the damper is open. A refrigerator in which mist is sprayed to a storage room other than the storage room provided with the mist spraying device.

  As a result, when the damper is closed, the mist is surely sprayed into the storage chamber equipped with the mist spraying device, and the mist can be supplied to any storage chamber as needed by opening the damper. Therefore, the storage chamber for supplying mist can be switched with a simpler configuration.

  According to a sixth aspect of the present invention, the mist-dedicated section is formed by an outer case that covers the mist spraying device, and the inner space of the outer case communicates with a suction port that returns cool air from the storage chamber to the air passage. is there.

  As a result, the mist generated from the mist spraying device first fills the outer case and then diffuses, so that the entire amount is not directly supplied to the storage chamber provided with the mist spraying device. Furthermore, since the outer case is connected to the suction port of the storage chamber, it is possible to form a path through which mist can diffuse to other storage chambers by riding on the flow of cold air.

  In a seventh aspect of the invention, the mist dedicated section is provided in a partition wall between a storage chamber provided with the mist spraying device and an adjacent adjacent storage chamber, and the mist dedicated section is separated from the storage chamber. A refrigerator that communicates with a suction port that returns cool air to the air path.

  This makes it possible to provide a mist-dedicated section by making good use of the dead space between the storage rooms, and the mist-dedicated section does not affect the internal volume of the storage room, realizing a refrigerator with a larger storage capacity. it can.

  According to an eighth aspect of the present invention, there is provided a suction port cover that covers the suction port for returning the cool air in the storage chamber provided with the mist spraying device to the cooling chamber and has the opening, and houses the mist spraying device. The outer case and the suction port cover are connected to each other in a refrigerator.

  Thus, in order to maintain the storage chamber at a set temperature, a suction port cover for periodically sending cool air to the cooling chamber and a mist spraying device are housed, and relatively humid humid air is taken in from the opening to mist. And an outer case for diffusing mist into the storage room, and to optimize the shape and size of the cover, case body, opening, etc. in order to pursue each function it can.

According to a ninth aspect of the present invention, in the mist spraying device, the mist is sprayed using condensed water generated by dewing moisture in the air, and the mist spraying device is disposed upstream of the mist spraying device in the mist dedicated section. It is a refrigerator in which a humidity supply port is provided and a mist discharge port is provided on the downstream side of the mist spraying device.

  Thus, when the cooling fan is stopped, the mist that diffuses in the outer case can be supplied not only from the humidity supply port but also from the mist discharge port to the storage chamber provided with the mist spraying device.

  In addition, the amount of mist supplied to the storage chamber provided with the mist spraying device can be adjusted according to the size of the area of the mist discharge port, and excessive mist diffusion to other storage chambers can be suppressed. Mist diffusion balanced in all rooms is realized.

  According to a tenth aspect of the present invention, in the mist spraying device, the mist is sprayed using the condensed water generated by the condensation of moisture in the air, and the mist spraying device is disposed upstream of the mist spraying device in the mist dedicated section. It is a refrigerator in which a humidity supply port is provided and a mist diffusion adjusting material is provided on the downstream side of the mist spraying device.

  Thus, when the cooling fan is stopped, the mist that diffuses in the outer case can be supplied not only from the humidity supply port but also from the mist discharge port to the storage chamber provided with the mist spraying device.

  In addition, the amount of mist supplied to the storage chamber provided with the mist spraying device can be adjusted according to the size of the area of the mist discharge port, and excessive mist diffusion to other storage chambers can be suppressed. Mist diffusion balanced in all rooms is realized.

  When the cooling fan is activated, high-humidity cool air in the storage chamber is taken into the outer case from the humidity supply port and mist discharge port. Although it may not be possible, the humidity supply port is provided on the upstream side of the mist spraying device in the outer case, and the mist diffusion adjusting material is provided on the downstream side of the mist spraying device, so that the other storage chamber passes through the suction port. The mist that diffuses to the mist becomes a barrier by the mist diffusion regulator, so that excessive mist diffusion to other storage rooms can be suppressed, and mist diffusion that is balanced with respect to the entire refrigerator can be realized.

  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)
1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention, FIG. 2 is a sectional view of essential parts of a mist spraying device in the refrigerator according to Embodiment 1 of the present invention, and FIG. 3 is a diagram of Embodiment 1 of the present invention. FIG. 4 is a schematic view showing the positional relationship between the air passage and each storage room in the refrigerator, FIG. 4 is a cross-sectional view showing the arrangement of the suction cover and the outer case in the refrigerator of Embodiment 1 of the present invention, and FIG. 5 is an embodiment of the present invention. FIG. 6 is a timing chart showing a control pattern of the mist spraying apparatus in the refrigerator according to Embodiment 1 of the present invention.

In the figure, a heat insulating box 101 which is a refrigerator main body of the refrigerator 100 includes an outer box 102 mainly using a steel plate, an inner box 103 formed of a resin such as ABS, and the outer box 102 and the inner box 103. It is comprised with the hard foaming urethane 101b by which foam filling is carried out, and it heat-insulates with the circumference | surroundings and is heat-insulated by the partition wall 101C into several storage chambers. A refrigeration chamber 104 as a first storage chamber is provided at the top, and a switching chamber 105 as a fourth storage chamber and an ice making chamber 106 as a fifth storage chamber are provided side by side below the refrigeration chamber 104. A freezing room 107 as a second storage room is arranged at the lower part of the chamber 105 and the ice making room 106, and a vegetable room 108 as a third storage room is arranged at the lowermost part, and each storage room has a door 104a, 105a, 106a, 107a, 118 are provided.

  The refrigerated room 104 is set to a refrigerated temperature zone that is a temperature that does not freeze for refrigerated storage, and is usually set to 1 ° C. to 5 ° C. The vegetable temperature range is 2 ° C to 7 ° C. The freezer compartment 107 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 can be switched to a preset temperature zone between the refrigeration temperature zone and the freezing temperature zone in addition to the refrigeration temperature zone, vegetable temperature zone, and freezing temperature zone. The switching chamber 105 is a storage chamber provided with an independent door arranged in parallel with the ice making chamber 106, and is often provided with a drawer-type door.

  In this embodiment, the switching chamber 105 is a storage room including the temperature range of refrigeration and freezing. However, the refrigeration is performed by the refrigeration room 104 and the vegetable room 108, and the freezing is performed by the freezing room 107. A storage room specialized for switching only the temperature zone in the middle of freezing may be used. Moreover, the storage room fixed to the specific temperature range may be sufficient.

  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 shape toward the back of the refrigerator. A machine chamber 101a is formed in the stepped recess, and the compressor 109, moisture is formed in the machine chamber 101a. Houses high pressure side components of the refrigeration cycle such as a dryer (not shown) for removal. That is, the machine room 101 a in which the compressor 109 is disposed is formed by biting into the uppermost rear region in the refrigerator compartment 104.

  Thus, by providing the machine room 101a in the rear region of the uppermost storage room of the heat insulation box 101 that has become a dead space that is difficult to reach, the compressor 109 is disposed in the conventional refrigerator. The space in the machine room at the bottom of the easy-to-use heat insulation box 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  The refrigeration cycle is formed of a series of refrigerant flow paths including a compressor 109, a condenser (not shown), a capillary as a decompressor, a cooler 112, and an accumulator 112a in order by a refrigerant pipe 112b. For example, isobutane, which is a hydrocarbon-based refrigerant, is enclosed.

  The compressor 109 is a reciprocating compressor that compresses refrigerant by reciprocating a piston in a cylinder. In the case of a refrigeration cycle using a three-way valve or a switching valve for the heat insulation box 101, those functional parts may be disposed in the machine room 101a.

  In this embodiment, the decompressor constituting the refrigeration cycle is a capillary. However, an electronic expansion valve that can freely control the flow rate of the refrigerant driven by the pulse motor may be used.

  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 surface of the freezing chamber 107, and is partitioned from the air passage 141, and a rear partition wall 111 configured to be thermally insulated from each storage chamber is configured. In the cooling chamber 110, a cooler 112 is disposed, and in the upper space of the cooler 112, the cold air cooled by the cooler 112 by a forced convection method is stored in the refrigerating chamber 104, the switching chamber 105, the ice making chamber 106, and vegetables. A cooling fan 203 for blowing air to the chamber 108 and the freezing chamber 107 is disposed.

  The air passage 141 is provided with a damper device 241 to adjust the air volume in the air path. In this embodiment, the air temperature to the refrigerator compartment 104 is adjusted so that the room temperature falls within a predetermined temperature range.

  Further, a radiant heater 114 made of a glass tube is provided in the lower space of the cooler 112 to defrost frost and ice adhering to the cooler 112 and its periphery during cooling.

  In the vegetable compartment 108, a storage container 119 placed on a frame attached to the drawer door 118 of the vegetable compartment 108 is disposed.

  In the upper part of the vegetable compartment 108, there are a suction inlet 126 for the vegetable compartment for cooling the inside of the vegetable compartment 108 and returning heat to the cooler 112, and a suction inlet cover 126a installed in the upper part of the vegetable compartment 108. It is provided so as to cover the suction port 126. The heat-exchanged cold air is taken in from an opening provided in the suction port cover 126a, is carried to the cooling chamber 110 through the suction port 126, and is circulated in the refrigerator after being cooled.

  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.

  The rear surface partition wall 111 is composed of a resin such as ABS and a heat insulating material such as polystyrene foam for isolating the air passage 141 and the cooling chamber 110 and ensuring the heat insulation of the storage chamber.

  An outer case 127 is provided in the upper part of the vegetable compartment 108, and a mist spraying device 131 is installed therein.

  In the present embodiment, the mist-dedicated section is formed by an outer case 127 that covers the mist spraying device, and the inner space of the outer case 127 is an air passage 141 from the vegetable compartment 108 that is a storage room provided with the mist spraying device 131. It communicates with a suction port that returns cool air to the air.

  The mist spraying device 131 sprays mist using the dew condensation water generated by condensing moisture in the air, and is mainly an atomization unit 139, a voltage application unit 133, and a heat transfer cooling member. The outer case 127 is provided with a humidity supply port 138, which includes a cooling pin 134.

  The atomization part 139 is an atomization electrode which sprays mist from the front-end | tip, and is comprised with platinum, titanium, etc. The atomizing section 139 is located close to the cooling pin 134, which is a heat transfer cooling member made of a good heat conducting member such as aluminum or stainless steel, via an electrically insulating material such as alumina, and is located almost at the center of the cooling pin 134. It is fixed to.

  The material of the cooling pin 134 is preferably a high heat conductive member such as aluminum or copper, and the periphery of the cooling pin 134 is covered with a heat insulating material 152 in order to efficiently transfer cold heat from one end to the other end of the cooling pin 134. It is desirable.

  Further, in the present embodiment, since the shape of the cooling pin 134 is a cylinder, when fitting into the heat insulating material 152, the mist spraying device 131 can be pressed and attached while rotating even if the fitting size is a little tight. Therefore, the cooling pin 134 can be attached with no gap.

  The shape of the cooling pin 134 may be a rectangular parallelepiped or a regular polygon. In the case of these polygons, positioning is easier than a cylinder, and the mist spraying device 131 can be provided at an accurate position.

  The cooling pin 134 has a projecting portion 134 a with its tip extending in a convex shape toward the freezer compartment 107 through the inside of the heat insulating material 152. The protruding surface 134a has no heat insulating material on the front end surface and the periphery thereof, and the inner wall formed of a resin such as ABS serving as the freezer compartment wall also extends in a convex manner toward the refrigerator compartment 107 side. Since the freezing chamber 107 is a drawer-type storage chamber, the extending portion is arranged so that it is not visible to the user even when the door is opened by an internal storage container.

  The temperature of the freezer compartment 107 is −22 ° C. to −15 ° C. By extending the tip of the cooling pin 134, the entire cooling pin 134 can be cooled more effectively. Or the structure of exposing the front-end | tip surface of the cooling pin 134 to the freezer compartment 107 may be sufficient. Furthermore, the cooling pin 134 may be embedded in the heat insulating material 152, but in this case, the cooling effect of the cooling pin 134 is smaller than that in the present embodiment.

  Here, the cooling pin 134 cooled by the cold air in the freezer compartment 107 cools the atomizing portion 139 by heat conduction, and condensation occurs on the surface of the atomizing portion 139 that has become a temperature below the dew point, and this condensed water is used. Mist will be sprayed.

  In addition, a disk-shaped counter electrode 136 having a hollow donut-shaped interior on the storage chamber (vegetable chamber 108) side at a position facing the atomizing portion 139 maintains a certain distance from the tip of the atomizing portion 139. As installed.

  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.

  In the vicinity of the atomizing portion 139, discharge is always generated due to mist spraying, and thus there is a possibility that wear will occur at the tip of the atomizing portion 139. Since the refrigerator 100 is generally operated for a long period of 10 years or longer, the surface of the atomizing portion 139 needs to be surface-treated. For example, it is desirable to use nickel plating, gold plating, or platinum plating.

  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 communicates and is controlled with the control means 146 of the refrigerator main body, and performs ON / OFF of high voltage application by an input signal from the refrigerator 100 or the mist spraying device 131.

  In the present embodiment, the voltage application unit 133 is installed in the mist spraying device 131, and the storage room (vegetable room 108) is in a low temperature and high humidity atmosphere. Therefore, on the substrate surface of the voltage application unit 133, Bold material or coating material is applied to prevent moisture.

  About the refrigerator 100 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.

  Here, the low-temperature and low-pressure liquid refrigerant exchanges heat with the cold air in each storage chamber, and the refrigerant in the cooler 112 evaporates. When evaporating and evaporating, heat for evaporating is taken from the surroundings to generate cool air for cooling each storage chamber in the cooling chamber 110. The low-temperature cold air is diverted from the cooling fan 203 to the refrigerating room 104, the switching room 105, the ice making room 106, the vegetable room 108, and the freezing room 107 by using the air passage 141 or the damper device 241 and cooled to the respective target temperature zones. . In particular, the vegetable compartment 108 is adjusted to 2 ° C. to 7 ° C. by ON / OFF operation such as cold air distribution and heating means (not shown), and generally has no internal temperature detection means. There are many.

  The flow of the cold air circulating through the storage rooms of the refrigerator 100 will be described with reference to FIG. The cool air in each storage chamber is structured to return to the cooling chamber 110 through the air passage 141 when the cooling fan 203 is operated. When the returned cold air passes through the cooler 112, it is heat-exchanged and cooled, and is supplied to each storage room through an air passage.

  In this air passage 141, the air passage 141 through which cool air flows from the cooler 112 to each storage chamber is referred to as a discharge air passage 141a, and the air passage through which cold air flows from the storage chamber to which the cool air is written after cooling each storage chamber to the cooler 112. 141 is a suction air passage 141b, and a simple structure of the air passage 141 is shown in FIG.

  First, the cold air heat-exchanged in the cooling chamber 110 is supplied to the freezing chamber 107, the switching chamber 105, and the ice making chamber 106, and the damper device 241 provided in the discharge air passage 141 a that flows from the cooler 112 to the refrigerating chamber 104. When is open, cold air is supplied to the refrigerator compartment 104. In addition, the cold air that has passed through the damper device 241 is supplied to the vegetable compartment 108 through the air passage 141 that goes into the refrigerator compartment 104 and the discharge air passage 141 a that leads to the branched vegetable compartment 108.

  In addition, the cold air after cooling each storage room returns to the cooling room 110 through the suction air passage 141b again, and the refrigerator is cooled to a predetermined temperature by repeating this cycle.

  Here, the cold air circulated through the vegetable chamber 108 returns to the cooling chamber 110 through the suction port 126 that is the entrance to the suction air passage 141b. As shown in FIGS. 4 and 5, the mist spraying device 131 is a mist-dedicated section. The outer case 127 is provided with a humidity supply port 138 that is an opening for taking in high-humidity cold air from the vegetable compartment 108.

  The taken-in high-humidity cold air is cooled by the atomizing section 139 that has become below the dew point due to heat conduction from the freezing temperature zone, and is condensed and sprayed with mist. At this time, after the sprayed mist fills the mist-dedicated section, whether the mist is supplied to the vegetable room 108 or another storage room is changed by the diverter.

  In the present embodiment, a cooling fan 203 is provided in the flow dividing section, and the storage chamber for supplying mist is switched depending on whether the cooling fan 203 is activated or not.

Specifically, when the cooling fan 203 is stopped, the mist filled in the mist dedicated section is supplied into the vegetable compartment 108 through the opening 147, and the cooling fan 203 is activated. Since the outer case 127 is connected to the suction port 126, the mist is conveyed to the cooling chamber 110 through the suction port 126 and the air passage 141, and the cool air flowing into the discharge air passage 141a through the cooling chamber It is supplied to each storage room of the refrigerator 100 on the flow.

  Further, the suction port cover 126a is connected to the suction port 126 so that the cool air of the vegetable compartment 108 is taken in from the opening 147 and is conveyed to the cooling chamber 110 through the suction port 126 and the suction air passage 141b.

  Here, in the present embodiment, the outer case 127 and the suction port cover 126a communicate with each other and are further connected. Note that the outer case 127 may also serve as the suction port cover 126a. In this case, the humidity supply port 138 can also serve as the opening 147.

  Cold air in the freezing temperature zone in the freezer compartment 107, which is a cooling means for cooling the cooling pins 134, is generated by the cooler 112 by the operation of the cooling system, and cool air of about −15 to −25 ° C. flows by the cooling fan 203, The cooling pin 134 which is a heat transfer cooling member is cooled to about 0 to −10 ° C., for example.

  At this time, since the cooling pin 134 is a good heat conducting member, it is very easy to transmit cold heat, and the atomizing portion 139 is also indirectly cooled to about 0 to −10 ° C. via the cooling pin 134.

  Here, the temperature of the vegetable compartment 108 is 2 ° C. to 7 ° C., and the temperature of the cooling pin 134 on the side of the vegetable compartment 208 is 10 ° C. or more with the surrounding air, and the humidity is relatively high due to transpiration from the vegetables. Since it is in the state, the atomization part 139 becomes below the dew point temperature, water is generated in the atomization part 139, and water droplets adhere.

  A high voltage (for example, 4 to 10 kV) is applied to the atomizing unit 139 to which water droplets are attached by the voltage applying unit 133 to cause corona discharge, and water droplets at the tip of the atomizing unit 139 are refined by electrostatic energy, It becomes. Furthermore, since the droplets are charged, ozone, OH radicals, and the like are generated simultaneously with nano-level fine mist having a charge of several nanometers due to Rayleigh splitting. 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 a few μA level, and the input is a very low input of 0.5 to 1.5 W. .

  Specifically, when the atomizing portion 139 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 attached to the tip of the atomizing portion 139 is the atomized portion 139 and the counter electrode 136. The cold air insulation layer in between is destroyed and corona discharge occurs due to electrostatic force. At this time, the dew condensation water is charged and becomes fine particles. Further, since the counter electrode 136 is on the positive side, the charged fine mist is attracted, the droplets are further atomized, and the nano-level fine mist containing radicals and invisible charges of several nm level is attracted to the counter electrode 136. Due to the inertial force, fine mist is sprayed in the outer case 127.

  Note that when there is no water in the atomizing portion 139, the discharge distance is increased, the cold insulating layer cannot be destroyed, and the discharge phenomenon does not occur. As a result, no current flows between the atomizing portion 139 and the counter electrode 136, and atomization does not occur.

  Moreover, the atomization part 139 can be cooled indirectly by cooling the cooling pin 134 which is a heat-transfer cooling member, without directly cooling the atomization part 139, and the cooling pin 134 which is a heat-transfer cooling member Has a larger heat capacity than that of the atomizing section 139, so that the direct influence on the atomizing section 139 can be reduced, and the atomizing section 139 can be cooled. By fulfilling the above, it is possible to suppress a rapid temperature fluctuation of the atomizing section 139 and realize a mist spray with a stable spray amount.

If the temperature of the atomization part 139 falls by 1K, the water generation speed at the tip thereof increases by about 10%. However, when the atomizing unit 139 is extremely cooled, the condensation speed becomes rapid, and the amount of condensation increases accordingly, and the input to the mist spraying device 131 increases due to an increase in the load of the atomizing unit 139 and the atomizing unit 139. However, in this embodiment, it is possible to prevent such a malfunction due to an increase in the load of the atomizing unit 139, to secure an appropriate amount of dew condensation, and to be stable at a low input. Mist spray can be realized.

  The shape of the cooling pin 134 that is a heat transfer cooling member may be a columnar shape, a rectangular parallelepiped, or a regular polygonal shape, but when the column is fitted into the heat insulating material 152, the mist spraying device 131 can be attached while being inclined. . Conversely, in the case of a polygon, positioning is easier than a cylinder.

  The cooling of the cooling pin 134, which is a heat transfer cooling member, uses the cold air generated in the cooling chamber 110, and the cooling pin 134 is formed of a metal piece with good thermal conductivity. Necessary cooling can be performed only by heat conduction with the cold air generated at 112.

  Since the cooling means can be configured with such a simple structure, it is possible to realize the atomizing section 139 with few failures and high reliability. Moreover, since the cooling pin 134 and the atomization part 135 which are heat-transfer cooling members can be cooled using the cooling source of a refrigerating cycle, atomization can be performed with energy saving.

  When cooling by the cooling means in this way, cooling is performed by cooling from the portion extending to the freezing chamber 107 which is the farthest part from the atomizing portion 139 of the cooling pin 134 which is a heat transfer cooling member. After the large heat capacity of the pin 134 is cooled, the atomization unit 139 is cooled by the cooling pin 134, so that the temperature change of the cold air in the refrigeration temperature zone, which is a cooling means, directly affects the atomization unit 139. It is possible to further ease the application, and to realize a stable mist spray with a smaller fluctuation load.

  Thus, the cooling pin 134 that is a heat transfer cooling member can secure a certain amount of heat capacity, and can relieve the response of heat conduction with the cold air in the freezer compartment 107, so that the temperature fluctuation of the atomization unit 139 In addition, since it has a function as a cold storage member, it is possible to secure the time for the occurrence of condensation in the atomizing section 139 and prevent freezing.

  The fine mist generated at the atomizing electrode 135 is sprayed into the outer case 127, which is a mist-dedicated compartment, but is very diffusible and has a high diffusivity, and enters the vegetable compartment 108 through the humidity supply port 138 which is an opening. Even fine mist diffuses. Since the fine mist to be sprayed is generated by high-pressure discharge, it has a negative charge. On the other hand, among the vegetables which are fruits and vegetables, green vegetable leaves and fruits are also stored in the vegetable room 108, 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.

  Here, when there is no water in the atomizing portion 139, the discharge distance is increased, the cold insulating layer cannot be destroyed, and the discharge phenomenon does not occur. As a result, no current flows between the atomizing portion 139 and the counter electrode 136. 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.

  In the present embodiment, the voltage application unit 133 protects the circuit by adopting a moisture-proof and waterproof structure using a potting material or a coating material.

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

  The timing for spraying mist from the mist spraying device 131 will be described with reference to FIG. First, in the refrigerator 100, the cooling fan 203 is periodically turned on / off in order to supply the cool air generated in the cooling chamber 110 to all the storage rooms, and the cooling fan 203 operates when turned on, and the cooling fan 203 when turned off. Will be stopped.

  Further, the damper device 241 as a diversion unit is periodically opened and closed in order to distribute the cold air generated in the cooling chamber 110 to the refrigerator compartment 104 and the vegetable compartment 108, and accompanying this opening and closing, the refrigerator compartment 104 and the vegetable compartment 108. It becomes possible to switch the mist supply to.

Here, in the first embodiment, there is a case where a high voltage is applied (spray 2) when the cooling fan 203 as the flow dividing unit operates, and the mist generated at this time is taken into the cooling chamber 110 through the suction port 126. At the same time, mist is supplied to the freezing chamber 107, the switching chamber 105, and the ice making chamber 106 that communicate with the cooling chamber 110.
At this time, if the damper device 241 is open, the mist is supplied to the refrigerator compartment 104 through the discharge air passage 141a.

  In addition, there is a time when a high voltage is applied even when the cooling fan 203 as a flow dividing portion does not operate (spray 1). At this time, the mist is sprayed into the vegetable compartment 108. Thus, when the cooling fan 203 is stopped, the mist does not pass through the suction port 126, but fills in the outer case 127 and then diffuses to open the humidity supply port 138 and the suction port cover 126a. It is supplied into the vegetable compartment 108 through 147.

As described above, in the first embodiment, the mist spraying device 131 is accommodated in the outer case 127 provided in the mist exclusive section in the vegetable compartment 108, and the outer case 127 is moved from the vegetable compartment 108 to the cooling chamber. A humidity supply port 138 which is an opening is provided on the surface of the outer case 127 with respect to the vegetable compartment 108. At this time, the storage chamber for supplying mist is switched depending on whether or not the cooling fan 203 as a flow dividing portion is operated. When the cooling fan 203 is not operating, the storage chamber is provided with a mist spraying device. When the mist is sprayed to the vegetable compartment 108 and the cooling fan 203 is operating, the mist is sprayed to other storage rooms other than the storage room provided with the mist spraying device.
Further, since the outer case 127 is connected to the suction port 126 of the vegetable compartment 108, a path through which the mist can diffuse to other storage compartments is formed, and the mist is sprayed when the cooling fan 203 operates. Therefore, a configuration in which mist is naturally supplied to another storage room using forced convection by the cooling fan 203 can be realized in the refrigerator 100.

  Therefore, using the cooling fan 203, which is a component in the refrigeration cycle, the mist can be diverted by forced convection on the cold air flow, and the mist can be reliably transferred to any storage room as needed with a simple configuration. Supply can be performed.

  The supply of mist to the vegetable compartment 108 provided with the mist spraying device 131 is performed mainly when the cooling fan 203 does not operate through the humidity supply port 138 provided in the outer case 127 forming the mist exclusive section. Is called.

In addition, when electrostatic atomization, which is a method of atomizing by corona discharge, is used, nano-level fine mist is generated, and the fine mist is atomized and sprayed to produce vegetables and other fruits and vegetables. It can adhere uniformly to the surface and improve the freshness of food.

  Furthermore, the generated fine mist contains ozone, OH radicals, etc., and by these oxidizing powers, it is possible to deodorize and sterilize the vegetable surface in the vegetable compartment 108, and at the same time, pesticides attached to the vegetable surface Hazardous substances such as wax can be oxidatively decomposed and removed.

  Moreover, in this Embodiment, the suction inlet cover 126a which covers the suction inlet 126 which returns the indoor cold air of the vegetable compartment 108 in which the mist spraying apparatus 131 was provided to the cooling chamber 110, and has the humidity supply port 138 is provided. The outer case 127 that houses the mist spraying device 131 and the suction port cover 126a are connected.

  As a result, the suction port cover 126a for periodically sending cool air to the cooling chamber 110 and the mist spraying device 131 are housed in order to maintain the inside of the vegetable chamber 108 at the set temperature, and the high humidity in the vegetable chamber 108 is stored from the humidity supply port 138. Since moisture and cold air is taken in and dew condensation water is generated, not only the storage room equipped with mist but also other storage rooms will have a dedicated mist section for supplying a sufficient amount of mist. The shape and size of the main body and opening of the outer case 127 and the suction port cover 126a can be optimized to pursue.

  In the present embodiment, in the air passage 141 connecting the cooling chamber 110 and the storage chamber, the return air passage from the cooling chamber 110 to the storage chamber has the damper device 241 that can be opened and closed. Since the mist is sometimes sprayed by the mist spraying device when the device 241 is open, the generated mist is a vegetable room provided with the mist spraying device 131 through the air passage 141 when the damper device 241 is open. Mist can also be supplied to the refrigerator compartment 104 other than 108.

  Note that the supply of mist to the vegetable compartment 108 provided with the mist spraying device 131 is mainly through the humidity supply port 138 provided in the outer case 127 and the opening 147 provided in the suction port cover 126a, and the damper device 241. Done when is closed.

  In the present embodiment, the storage room in which the mist is sprayed by the mist spraying device 131 (the atomizing section 139) is the vegetable room 108, but storage in other temperature zones such as the refrigerator room 104 and the switching room 105 is stored. It may be a room, and it is possible to appropriately select which storage room the mist-dedicated section is to be installed according to the product configuration of the refrigerator.

(Embodiment 2)
FIG. 7 is a longitudinal sectional view of the refrigerator according to the second embodiment of the present invention, FIG. 8 is a schematic diagram showing the positional relationship between the air passage and each storage room in the refrigerator according to the second embodiment of the present invention, and FIG. It is sectional drawing which shows arrangement | positioning of the suction cover and outer case in the refrigerator of Embodiment 2.

  In addition, although description is abbreviate | omitted about the part which can apply the structure similar to Embodiment 1, and the same technical idea, unless there is a malfunction by combining this Embodiment with the structure of Embodiment 1, and implementing it. It is possible to apply in combination.

  7-9, in this Embodiment, the damper apparatus 241 is provided in the suction inlet 126 for returning the cold air from the vegetable compartment 108 to the cooling chamber 110. As shown in FIG. Here, the damper device can be opened and closed. When the damper device is open, not only the cold air in the vegetable compartment is sent to the cooling chamber, but also the mist generated in the mist spraying device 131 is sent to the cooling chamber and the refrigerator compartment is passed through the air passage. Mist diffuses to all storage rooms such as 104.

  On the other hand, when the damper device 241 is closed, the cold air in the vegetable compartment 108 and the mist generated in the mist spraying device 131 cannot pass through the suction port 126, and both the cold air and the mist diffuse into the vegetable compartment 108. It will be.

  As described above, in the second embodiment, since the damper device 241 is provided in the suction port 126 for returning the indoor cold air of the vegetable compartment 108 provided with the mist spraying device 131 to the cooling chamber 110, the generated mist is generated. The distribution to each storage room can be controlled more accurately. In particular, it is easy to adjust the amount of mist spraying in the vegetable compartment 108 provided with the mist spraying device 131, and the operation can be performed by a simple operation of opening and closing the damper device 241 depending on the amount of mist spraying.

  At present, 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 of cold air at room temperature and atmospheric pressure. If isobutane, which is a flammable refrigerant, leaks from the refrigeration system when the compressor 109 is stopped, it is more than cold air. Because it is heavy, it will stay downward. Therefore, even if isobutane leaks from the cooler 112 to the vegetable compartment 108, since the mist spraying device 131 is installed on the upper surface of the vegetable compartment 108, the possibility that the vicinity of the mist spraying device 131 becomes a flammable concentration is extremely low. Therefore, even when a high voltage is applied to the mist spraying device 131, safety can be ensured.

(Embodiment 3)
10 is a cross-sectional view showing the arrangement of the suction cover and the outer case in the refrigerator according to Embodiment 3 of the present invention, FIG. 11 is a top view of the vegetable compartment in the refrigerator according to Embodiment 3 of the present invention, and FIG. FIG. 10 is a three-dimensional view illustrating a structure of an outer cover in the refrigerator according to the third embodiment.

  Note that the description of the portions to which the same configuration and the same technical idea as those of the first embodiment or the second embodiment can be applied is omitted, but the present embodiment is applied to the configuration of the first embodiment or the second embodiment. By implementing in combination, it is possible to apply in combination as long as there is no problem.

  In the present embodiment, as shown in FIGS. 10 to 12, the outer casing 127 has a humidity supply port 142 as an opening on the upstream side with respect to the mist spraying device 131, and a mist discharge port 143 as an opening on the downstream side. Is provided. Here, “upstream” and “downstream” are described according to the flow of cold air, and those located far from the suction port cover 126a are the upstream side, and those located on the other side, that is, the storage chamber side, are the downstream side.

  Further, the outer case 127 is connected to the suction port cover 126a at the connection portion 147 as shown in FIG. 11, and the mist generated in the mist spraying device 131 when the cooling fan 203 is operated is sucked into the suction port 126, and thereafter It spreads to all rooms of the refrigerator 100.

  The internal structure of the outer case 127 in the present embodiment is as shown in FIG. 12, which houses the mist spraying device 131 and the control board 144, and is attached to the humidity supply port 142, the mist discharge port 143 and the refrigerator 100. In addition, various ribs for securing the strength of the outer case 127 are configured.

  A butyl tape 145 and an aluminum tape 146 are attached to the upper surface of the cooling pin 134 of the mist spraying device 131, and the aluminum tape 146 is in contact with the bottom surface of the freezer compartment 107.

Here, the butyl tape 145 is affixed for the purpose of absorbing dimensional tolerances in order to attach the cooling pins 134 without gaps. In addition, the aluminum tape 146 is applied to the middle portion of the cooling pin 134 to reduce the influence of the temperature gradient formed in the butyl tape 145, and the cold air in the freezer compartment 107 is effectively used to effectively use the lower mist 139. Let it cool down.

  Each of the humidity supply port 142 and the mist discharge port 143 includes a plurality of holes, and in this embodiment, the dimensions of the holes are both a rectangle of 12 mm length and 4 mm width. With such a size, since the user does not accidentally put a finger or the like inside the outer case 127 even during operation of the refrigerator 100, the user may be electrocuted by the voltage applied by the mist spraying device 131. There is no.

  The control board 144 has a high voltage application unit 133 and has a role of periodically turning on / off the high voltage between the atomization unit 139 and the counter electrode 136.

  As described above, in the third embodiment, the outer case 127 is provided with the humidity supply port 142 and the mist discharge port 143 communicating with the storage chamber 108, and the humidity supply port 142 is connected to the mist spraying device 131. Since the mist discharge port 143 is provided on the upstream side and on the downstream side with respect to the mist spraying device 131, the mist that diffuses in all directions in the outer case 127 mainly when the cooling fan 203 is stopped. Can be supplied to the storage chamber 108 from the humidity supply port 142 and the mist discharge port 143.

  Further, the amount of mist supplied to the storage chamber 108 provided with the mist spraying device 131 can be adjusted according to the size of the area of the mist discharge port 143, and excessive mist diffusion to other storage chambers can be suppressed. It is possible to achieve balanced mist diffusion for all refrigerator rooms.

  Further, when the cooling fan 203 is operated, high-humidity cold air in the storage chamber 108 is taken in from the humidity supply port 142 and the mist discharge port 143, but the wind flows from the humidity supply port 143 to the mist discharge port. The high-humidity cold air supplied to the spray device 131 is only that taken in from the humidity supply port 142, but when the wind speed of the high-humidity cold air taken in from the humidity supply port 142 increases, condensation occurs in the mist spray device 131. May not be possible.

  Here, since the mist discharge port 143 is installed in the present embodiment, the mist spraying device 131 can be adjusted so as to generate dew condensation by reducing the wind speed of the high-humidity cold air taken in from the humidity supply port 142, The stability of mist spraying can be increased.

(Embodiment 4)
13 is a cross-sectional view showing the arrangement of the suction cover and the outer case in the refrigerator according to the fourth embodiment of the present invention, FIG. 14 is a top view of the vegetable compartment in the refrigerator according to the fourth embodiment of the present invention, and FIG. FIG. 16 is a three-dimensional view showing an example of the shape of the mist diffusion adjusting material in the refrigerator according to the fourth embodiment of the present invention.

  In addition, although description is abbreviate | omitted about the part which can apply the same structure and the same technical idea as Embodiment 1 to Embodiment 3, this Embodiment is added to the structure of Embodiment 1 to Embodiment 3. By implementing in combination, it is possible to apply in combination as long as there is no problem.

  In the present embodiment, as shown in FIGS. 13 to 15, the mist diffusion adjusting material 148 is provided in the connecting portion 147 of the outer case 127 so as to reduce the cross-sectional area of the connecting portion 147, and is generated by the mist spraying device 131. When the mist diffuses in the direction of the suction port 126 during the operation of the cooling fan 203, it becomes a barrier, and the amount of mist diffusion is adjusted.

  In this embodiment, the mist discharge port 143 is provided. However, since the mist distribution adjusting material 148 can adjust the mist distribution amount to each storage room such as the refrigerator compartment 104 and the vegetable compartment 108, the mist The discharge port 143 can also be omitted.

  Further, the action of the mist diffusion adjusting material 148 suppresses the diffusion of the mist generated in the mist spraying device 131 in the direction of the suction port 126. The shape of the mist diffusion adjusting material 148 is not limited as long as the cross-sectional area of the connecting portion 147 can be reduced. I will not. In FIG. 15, the mist diffusion adjusting material 148 has a rectangular plate shape, but may be an L-shaped mist diffusion adjusting material 148a or a mist diffusion adjusting material 148b having an opening 149 as shown in FIG.

  As described above, in the fourth embodiment, the humidity supply port 142 is provided on the upstream side of the mist spraying device 131 in the outer case 127, and the mist diffusion adjusting material 148 is provided on the downstream side of the mist spraying device 131. Therefore, the mist generated in the mist spraying device 131 is blocked by the mist diffusion adjusting material 148, and the diffusion in the direction of the suction port 126 is suppressed, and excessive mist diffusion to the freezer compartment 107, the refrigerator compartment 104, etc. is suppressed. This makes it possible to achieve balanced mist diffusion for all refrigerator rooms.

(Embodiment 5)
FIG. 17 is a longitudinal sectional view of a part of the refrigerator according to Embodiment 5 of the present invention.

  In this embodiment, the vegetable compartment is installed in the storage room adjacent to the refrigeration room.

  In addition, although description is abbreviate | omitted about the part which can apply the same structure and the same technical idea as Embodiment 1 to Embodiment 4, this Embodiment is added to the structure of Embodiment 1 to Embodiment 3. By implementing in combination, it is possible to apply in combination as long as there is no problem.

  As shown in the figure, the outer shell case 127 that forms the mist exclusive compartment 510 has a vegetable compartment 108 side that is always in communication with the mist exclusive compartment 510 as a storage room provided with the mist spraying device 131, and as an adjacent adjacent storage room, It is provided in the partition wall between the vegetable room and the refrigerated room which is a storage room having a temperature difference of less than about 10 ° C. In this way, when the temperature difference with the adjacent storage chamber is less than 10 ° C., it is possible to maintain heat insulation by air insulation of such a partition wall without injecting a heat insulating material into the partition wall. Therefore, the mist dedicated section can be formed using the space in the partition wall.

  In this way, when the temperature difference between the adjacent compartments is small, the type of supplying water by performing dew condensation by cooling in the freezing temperature zone is difficult in terms of arrangement, so a water tank 501 that can be removed from the refrigerator compartment side is provided. The mist spraying device 131 is provided.

The mist spraying device 131 provided with such a water tank is provided in an outer case 127 that forms a mist-dedicated section.
Further, the inside of the outer case communicates with the air passage 141, and the mist stored in the mist exclusive section passes through the air passage 141 to a storage room other than the vegetable compartment 108 which is a storage room provided with the mist spraying device 131. Can be supplied by a diverter.

In the present embodiment, since the mist spraying device 131 is provided in the partition wall between the storage chambers, which side of the storage chamber is the storage chamber provided with the mist spraying device 131 is uniquely determined. However, since the opening 143 that is always in communication as in the present embodiment is on the vegetable compartment 108 side and a large amount of mist is sprayed on the vegetable compartment 108 according to natural diffusion, the mist in the present invention The storage room provided with the spray device 131 is defined as the vegetable room 108.

  As in the first embodiment, the diversion method by the diversion unit is configured to switch the storage chamber for supplying mist depending on whether the cooling fan 203 provided in the air passage 141 is operated or to supply the mist by opening / closing the damper device 241. It is assumed that a configuration for switching the storage chamber to be applied is applicable.

  According to the refrigerator configured as described above, it is possible to provide a mist-dedicated section by making good use of the dead space between the storage rooms, and the mist-dedicated section does not affect the internal volume of the storage room, and has a larger capacity. A refrigerator with storage capacity can be realized.

  Further, by connecting the air passage 141 and the outer case 127 in the partition wall, it is possible to supply mist to a necessary storage room using a diverting means with a simple configuration.

  Moreover, atomization by corona discharge can be performed using the water tank 501 even if it is not a dew condensation system.

  In this embodiment, the temperature difference between the storage chamber provided with the mist spraying device 131 and the adjacent storage chamber is less than 10 ° C., but it is 10 ° C. to 20 ° C. such as a refrigeration temperature zone and a freezing temperature zone. In the case where the mist-dedicated section communicates with a suction port for returning cold air from the storage chamber to the air passage, since the heat insulating material is injected into the partition wall, the partition wall is connected to the adjacent storage chamber. Although it is difficult to penetrate, it is possible to form a concave part in a part of the heat insulating walls and to form a wide and wide mist-dedicated space on the side.

  In the present embodiment, the water tank 501 is provided between the adjacent storage chambers and is detachable so that the user can supply water. However, for example, for automatic ice making provided in the refrigerator compartment 104 It is possible to supply water to the tank automatically by branching from the tank, and it is possible to provide a mist spraying device 131 that saves the trouble of water supply and is convenient for the user.

  As described above, the refrigerator according to the present invention can stably supply mist to each storage room stably with a simple configuration. Can do.

DESCRIPTION OF SYMBOLS 100 Refrigerator 104 Refrigeration room 105 Switching room 106 Ice making room 107 Freezing room 108 Vegetable room 110 Cooling room 112 Cooler 126 Suction port 126a Suction port cover 127 Outer case 131 Mist spray device 134 Cooling pin (heat transfer cooling member)
138 Humidity supply port (opening)
139 Atomization section 141 Air path 241 Damper device 203 Cooling fan 142 Humidity supply port 143 Mist discharge port 148 Mist diffusion adjusting material 148a Mist diffusion adjusting material 148b Mist diffusion adjusting material

Claims (10)

A plurality of storage compartments that are thermally insulated, a cooling chamber that houses a cooler and is connected to the plurality of storage compartments via an air passage, and a mist spraying device that sprays mist.
The mist spraying device is an atomization method using corona discharge to apply a voltage,
A mist-dedicated compartment in at least one of the plurality of storage rooms;
The refrigerator provided with the diversion part which can switch the storage chamber which supplies the mist stored by the said mist exclusive division. 2. The refrigerator according to claim 1, wherein the diversion unit includes a cooling fan, and the storage chamber for supplying mist is switched depending on whether the cooling fan is activated or not. When the cooling fan is not operating, the mist is sprayed into the storage chamber provided with the mist spraying device, and when the cooling fan is operating, the storage chamber provided with the mist spraying device. The refrigerator according to claim 2, wherein the mist is sprayed to another storage chamber other than the refrigerator. The refrigerator according to claim 1 or 2, wherein the diversion unit includes a damper, and the storage chamber for supplying mist is switched by opening and closing the damper. The damper is provided in the air passage, and when the damper is closed, the mist is sprayed in a storage chamber provided with the mist spraying device, and when the damper is open, The refrigerator according to any one of claims 1 to 4, wherein the mist is sprayed to a storage chamber other than the storage chamber provided with the mist spraying device. The said mist exclusive section is formed with the outer case which covers the said mist spraying apparatus, The said outer case inner space is connected with the suction inlet which returns cold air from the said storage chamber to the said air path. The refrigerator as described in any one. The mist dedicated section is provided in a partition wall between a storage chamber provided with the mist spraying device and an adjacent adjacent storage chamber, and the mist dedicated section cools air from the storage chamber to the air passage. The refrigerator according to any one of claims 1 to 5, wherein the refrigerator communicates with the return suction port. An outer case for housing the mist spraying device, the suction case cover covering the suction port for returning the cool air in the storage chamber provided with the mist spraying device to the cooling chamber, and having the opening. The refrigerator according to claim 6, which is connected to the mouth cover.   The mist spraying device sprays mist using condensed water generated by condensation of moisture in the air, and a humidity supply port is provided upstream of the mist spraying device in the mist dedicated section. The refrigerator according to any one of claims 1 to 8, wherein a mist discharge port is provided downstream of the mist spraying device.   The mist spraying device sprays mist using condensed water generated by condensation of moisture in the air, and a humidity supply port is provided upstream of the mist spraying device in the mist dedicated section. The refrigerator as described in any one of Claim 1 to 9 with which the mist spreading | diffusion adjustment material is provided in the downstream with respect to the said mist spraying apparatus.