JP5589699B2 - refrigerator - Google Patents

Description

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

  In recent years, there has been an increasing need for sterilization of refrigerators and stored foods and food containers, and deodorization of refrigerator air.

  Conventionally, as a refrigerator equipped with a function that meets this need, bactericidal or antibacterial treated water is supplied to the storage room in the form of a mist using an ultrasonic atomizer, and the mist components are stored in the storage room walls and preserved. The surface of foods and food containers being sterilized and the refrigerator air are deodorized (for example, see Patent Document 1).

  8 and 9 show a refrigerator provided with a conventional mist generating device described in Patent Document 1. FIG.

  As shown in the figure, the vegetable compartment 7 is provided in the lower part of the refrigerator main body R, and the front opening thereof is closed by a drawer door D2 that can be freely opened and closed. Moreover, the vegetable compartment 7 is partitioned off from the upper refrigerator compartment (not shown) by a partition plate (not shown).

  A fixed hanger (not shown) is fixed to the drawer door D2, and a vegetable container 7B for storing food such as vegetables is mounted on the fixed hanger. The vegetable room 7 has an ultrasonic vibrator 8 as a mist generating device, an ozone generator (not shown) near the refrigerator, and a water supply path (not shown) directly connected to the water supply, an ozone water supply path (not shown). ing. The ozone water supply path is led to the vegetable room and connected to the ultrasonic atomizer 8.

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

  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 into mist by the ultrasonic vibrator 8, and sprayed to the vegetable compartment. With this atomized ozone water mist, it is possible to perform antibacterial action of bacteria adhering to the surface of the warehouse wall or food in the vegetable compartment 7 of the refrigerator, or to deodorize the air in the vegetable compartment 7.

JP 2000-220949 A

  However, in the above conventional configuration, sterilizing and antibacterial mist is stably supplied only to the vegetable room where the mist generating device is installed, and has a useful effect on the other storage rooms of the refrigerator. It was not able to be demonstrated.

  In addition, it is conceivable to supply the mist to other storage rooms by spraying a large amount of mist, but in that case, there are problems such as condensation in the cabinet and water rot of vegetables.

It is an object of the present invention to suppress an increase in microorganisms such as mold, bacterial yeast, and viruses attached to the surfaces of storage walls of all storage rooms and the surface of foods even with a small amount of mist supply. To do.

In the refrigerator according to the present invention, the heat insulating box is supplied to the storage room, the storage room partitioned by the partition wall, the cooling room for generating the cold air for cooling the storage room, the air passage for conveying the cold air, and the storage room. A mist spraying device for generating mist, wherein the storage chamber includes a plurality of storage chambers including a specific storage chamber provided with the mist spraying device and a storage chamber other than the specific storage chamber, and The storage room other than the specific storage room is provided with indirect supply means for intermittently supplying the mist generated by the mist spraying device through an air passage , and the indirect supply means is provided from the specific storage room to the specific storage room. Combined with a suction air path for returning cold air to the outside of the storage room, adding mist to the cold air conveyed from the suction air path, and intermittently indirectly supplying the mist to a storage room other than the specific storage room With what That.

  As a result, the mist concentration in each storage room fluctuates due to intermittent mist supply, and this mist concentration fluctuation causes biological stress to microorganisms such as mold, bacterial yeast, and viruses adhering to the surface of the storage room wall and food. Therefore, even if a small amount of mist is supplied while suppressing the amount of mist generated, even a small amount of mist can be supplied to the storage wall of the storage room or the surface of food. An increase in microorganisms such as attached mold, bacterial yeast and virus can be suppressed.

  The present invention provides a refrigerator with improved antibacterial performance by being able to express the useful effects of mist having antibacterial action and deodorizing action to all storage rooms of the refrigerator while suppressing the amount of mist generated can do.

Front view of the refrigerator in Embodiment 1 of the present invention The longitudinal cross-sectional view of the refrigerator in Embodiment 1 of this invention The figure which showed the ozone concentration of the vegetable compartment and the refrigerator compartment in the refrigerator of Embodiment 1 of this invention The figure which showed the bacteria elimination effect in BOX which assumed the refrigerator in Embodiment 1 of this invention Longitudinal sectional view of the refrigerator in the second embodiment of the present invention The perspective view of the vegetable compartment of the refrigerator in Embodiment 2 of this invention The figure which showed the ozone concentration of the vegetable compartment and the refrigerator compartment in the refrigerator of Embodiment 2 of this invention Main part schematic explanation perspective view of conventional refrigerator Perspective view of a vegetable room of a conventional refrigerator

In the refrigerator according to the first aspect of the invention, the heat insulating box includes a storage room partitioned by a partition wall, a cooling room for generating cold air for cooling the storage room, an air passage through which the cold air is conveyed, and the storage room A mist spraying device for generating mist to be supplied to the storage chamber, wherein the storage chamber includes a plurality of storage chambers including a specific storage chamber provided with the mist spraying device and a storage chamber other than the specific storage chamber. The indirect supply means for intermittently supplying the mist generated by the mist spraying device to the storage chambers other than the specific storage chamber through an air passage is provided from the specific storage chamber. Combined with a suction air passage for returning cold air to the outside of the specific storage chamber, adding mist to the cold air conveyed from the suction air passage, and intermittently indirectly supplying the mist to a storage chamber other than the specific storage chamber It is.

As a result, the mist supplied from the mist spraying device is intermittently sprayed in the specific storage chamber equipped with the mist spraying device, and the mist is indirectly sprayed to the storage chambers other than the specific storage chamber through the indirect supply means in the previous period. The mist concentration in each storage room is fluctuated intermittently by the intermittent mist supply, and microorganisms such as mold, bacterial yeast, and viruses attached to the surface of the storage room wall or food due to the mist concentration fluctuation It is now possible to apply biological stress to the mold, so that mold and bacteria attached to the storage walls and food surfaces even with a small amount of mist supplied to all storage rooms of the refrigerator while suppressing the amount of mist generated. An increase in microorganisms such as yeast and viruses can be suppressed.

Moreover , since the air path of the refrigeration cycle can be used without installing a special device in the refrigerator, the number of parts of the refrigerator can be reduced and the space of the refrigerator can be used effectively.

In addition , by adding the mist directly to the cold air conveyed through the air passage, the mist can be more effectively supplied to other than the specific storage room in the previous period, and further generated from the mist spraying device. You can now reduce the amount of mist.

The second invention according to the first invention, the indirect supply means, the recording head having an ejection air passage for conveying the cold air of the storage compartment from the cooling chamber for cooling the refrigerating cycle into the storage chamber, before Symbol cold The mist is indirectly supplied when the supply is stopped.

  Accordingly, since the mist is supplied when the supply of the cold air is stopped, the mist can be supplied more positively to a specific storage chamber, and the amount of mist generated from the mist spraying device can be further suppressed. It became so.

According to a third invention, in the first or second invention, the indirect supply means is provided in the vicinity of the mist spraying device.

  As a result, when it is desired to indirectly spray mist to a place other than the specific storage chamber, the mist can be quickly supplied to an indirect spraying device in the vicinity of the mist spraying device. It became possible to supply to other than the storage room, and furthermore, it became possible to suppress the amount of mist generated from the mist spraying device.

A fourth invention is characterized in that, in any one of the first to third inventions, the indirect supply means has a mist distribution means for switching presence / absence of mist supply to a storage chamber other than the specific storage chamber. To do.

As a result, the amount of mist supplied to the storage chamber can be controlled by using a diversion means according to the necessity of mist.

5th invention is equipped with the mist exclusive division which provided the mist spraying apparatus in the independent storage different from the storage space which stores the foodstuff in the said specific storage chamber in 1st to 4th invention. It is a feature.

  Thereby, the mist generated from the mist spraying device can be temporarily stored in the mist dedicated section, and the mist efficiently stored without mist disappearing in the food stored in the storage room can be stored in the air path of the refrigeration cycle. The mist can be easily supplied to all the storage chambers via the discharge air passage and the suction air passage using the cold air flow of the refrigeration cycle. In addition, the amount of mist generated from the mist spraying device can be reduced.

In a sixth aspect of the present invention, in any one of the first to fourth aspects of the invention, the storage compartment that stores the food compartmented in the specific storage compartment and the storage compartment is a mist spray compartment provided with a mist spray device. It is characterized by this.

  Thereby, since the mist can be actively supplied to the food stored in the mist spraying section, when there is a food that wants to actively suppress microorganisms attached to the surface of the food more actively, the mist spraying is performed. The increase in microorganisms can be suppressed by storing food in the mist spraying section provided with the device.

A seventh invention is characterized in that, in the fifth invention, the mist exclusive section is independent of the discharge air passage and the suction air passage and communicates with the discharge air passage or the suction air passage. To do.

  As a result, the mist dedicated space is not provided in the discharge air passage or the suction air passage, so that the cold air circulation in the refrigeration cycle is not hindered, and the mist exclusive space or the discharge air passage is connected. As a result, mist can be supplied to the air passage more efficiently, and the amount of mist generated from the mist spraying device can be suppressed.

An eighth invention is characterized in that, in the fifth invention, the mist exclusive section is independent of the discharge air passage and the suction air passage and communicates with the discharge air passage or the suction air passage. To do.

  Accordingly, when the storage chamber is cooled by the refrigeration cycle, the mist is supplied from the mist-dedicated section to the suction air passage so that the chill cycle of the refrigeration cycle is used to separate the storage chamber from the specific storage chamber. In addition to being able to supply mist to other than the specific storage chambers, when the storage chambers are not cooled by the refrigeration cycle, the mist stored in the mist-dedicated compartment via the suction air passage is used. Since it can be supplied to the storage room, mist can be supplied to the storage room even when cooling is not circulated in the refrigerator by the refrigeration cycle. Mist can be supplied to each storage room of the refrigerator, and the amount of mist generated from the mist spraying device can be reduced. It was.

In a ninth aspect based on the fifth aspect, the mist-dedicated section is provided on the rear side of the top surface of the storage room.

Thus, when each storage room is not cooled by the refrigeration cycle, the mist stored in the mist dedicated section provided on the top surface of the storage room is supplied to the entire storage room by natural diffusion using its own weight. The mist can be supplied to the storage chamber more efficiently, and the amount of mist generated from the mist spraying device can be suppressed.

According to a tenth aspect, in the fifth aspect, the mist-dedicated section is provided with an opening on a surface in contact with the storage chamber.

  Thus, regardless of whether or not each storage chamber is cooled by the refrigeration cycle, the mist stored in the mist dedicated section passes through the opening provided on the surface in contact with the storage chamber. Since the mist can be supplied to the storage chamber, the mist can be supplied to the storage chamber more efficiently, and the amount of mist generated from the mist spraying device can be suppressed. I can do it now.

An eleventh invention is characterized in that, in any one of the first to tenth inventions, the mist concentration difference in the storage chamber is 0.01 ppm or more in terms of ozone concentration contained in the mist.

  As a result, microorganisms such as mold, bacterial yeast, and viruses attached to the surface of the storage room storage wall and food can reliably give stress due to the difference in mist concentration. It has become possible to suppress the growth of microorganisms such as molds, bacterial yeasts and viruses attached to the surface.

A twelfth invention is characterized in that, in any one of the first to eleventh inventions, a mist concentration in the storage chamber is an ozone concentration contained in the mist and a minimum concentration is 0.001 ppm or less. .

  As a result, it is possible to further suppress the mist concentration that suppresses the increase of microorganisms such as mold, bacteria yeast, and viruses attached to the storage wall of the storage room and the surface of food, etc., and to further reduce the mist concentration. The amount of mist generated from the mist spraying device can be suppressed.

(Embodiment 1)
FIG. 1 is a front view of a refrigerator according to Embodiment 1 of the present invention, and FIG. 2 is a longitudinal sectional view showing a section when the refrigerator according to Embodiment 1 of the present invention is cut left and right.

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 foaming heat insulating materials, such as hard foaming urethane etc. which are foam-filled in the space of this, is heat-insulated with the circumference | surroundings, and is thermally insulated by the partition wall in the several storage chamber. 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 below the chamber 105 and the ice making room 106, and a vegetable room 108 as a third storage room is arranged at the bottom.

  The refrigerated room 104 is normally set to 1 ° C. to 5 ° C. at the lower limit of the temperature at which it does not freeze for refrigerated storage, and the vegetable room 108 is set to 2 ° C. to 7 ° C., which is a temperature setting that is the same or slightly higher than that of the refrigerated room 104. 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 is not only refrigerated set at 1 ° C to 5 ° C, vegetable set at 2 ° C to 7 ° C, and frozen temperature range normally set at -22 ° C to -15 ° C. It is possible to switch to a preset temperature range between the freezing temperature ranges. 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.

  By providing the machine room 101a in the rear region of the uppermost storage room of the heat insulation box 101 that is difficult to reach and is a dead space, the compressor 109 is arranged, so that the user can use the heat insulation box in a conventional refrigerator. The space in the machine room at the bottom of the body 101 can be effectively converted as the storage room capacity, and the storage performance and usability can be greatly improved.

  In the present embodiment, the matter relating to the main part of the invention described below is a type in which the compressor 109 is arranged by providing a machine room in the rear region of the lowermost storage chamber of the heat insulation box 101 which has been generally used conventionally. It may be applied to other refrigerators.

  A cooling chamber 110 for generating cold air is provided on the back of the vegetable chamber 108 and the freezing chamber 107. The cooling chamber 110 and each storage chamber are provided with a discharge air passage 141 for conveying cold air and a suction air passage 142 for returning the cold air from each storage chamber to the cooling chamber. The vegetable room discharge air passage 141 a discharges cold air to the vegetable room, and the vegetable room suction air passage 142 is provided in the vegetable room 108.

  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 113 for blowing air to the chamber 108 and the freezing chamber 107 is disposed.

  Further, the cold air cooled by the cooler 112 in the cooling chamber 110 passes through the vegetable chamber discharge air passage 141a and is sent to the vegetable chamber 108 by the cooling fan 113, and a damper 130 is provided in the middle of the vegetable chamber discharge air passage 141a. Is provided.

  In the vegetable compartment 108, a lower storage container 119 placed on a frame attached to the drawer door 118 of the vegetable compartment 108 and an upper storage container 120 placed on the lower storage container 119 are arranged.

  Further, in the lower part of the back of the vegetable compartment 108, the cold air cooled by the cooler 112 passes through the vegetable compartment discharge air passage 141 a and is discharged, and the discharged cold air is discharged to the cooling chamber 110. A vegetable room suction port 142a for returning and a vegetable room suction port 144 are provided as the suction port.

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.

  A mist spraying device 131 is provided on the top of the vegetable compartment 108. The vegetable compartment 108 has a structure in which mist is sprayed directly from the mist spraying device 131.

  Further, the vegetable room 108 is provided with a mist transporting path 146 that is an indirect supply path through which the mist supplied from the mist spraying device 131 can be indirectly supplied to the refrigeration room 104, the switching room 105, the ice making room 106, and the freezing room 107. The mist passes through the mist transporting path 146 and is indirectly sprayed.

  The mist transporting path 146 is provided with a mist suction port for sucking mist generated from the mist spraying device 131 into the mist transporting path 146, and is sucked into the refrigeration chamber 104, the switching chamber 105, the ice making chamber 106, and the freezing chamber 107. A mist discharge port for discharging the mist is provided.

  Further, the mist transporting path 146 is provided with a fan 147 as a diversion control means for distributing mist sprayed indirectly to the vegetable compartment 108, the refrigerator compartment 104, the switching compartment 105, the ice making compartment 106, and the freezing compartment 107. . The amount of mist sprayed directly onto the vegetable compartment 108 and the amount of mist indirectly sprayed onto the refrigerator compartment 104, the switching chamber 105, the ice making compartment 106, and the freezer compartment 107 can be adjusted by the air volume of the fan. In addition, a damper 148 serving as a mist distribution means for distributing mist sprayed indirectly is provided at the mist discharge port to the switching chamber 105, the ice making chamber 106, and the freezing chamber 107. By opening and closing the damper, the amount of mist distributed to the refrigerator compartment 104, the switching compartment 105, the ice making compartment 106, and the freezing compartment 107 can be adjusted.

  The mist generated from the mist spraying device 131 is generated by electrostatic atomization. Furthermore, since this mist is generated by an electrostatic atomization method, it contains OH radicals and ozone. Therefore, it is possible to suppress an increase in the number of microorganisms such as mold, yeast, and viruses adhering to the surface of the food material, food container, and the like stored in each storage room due to these strong oxidizing powers Has the function of

  Furthermore, since the mist comes into contact with air containing odor generated from food stored in the refrigerator 100, the odor component is oxidized and decomposed by OH radicals and ozone contained in the mist. Has the function to obtain.

  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. The high-temperature and high-pressure refrigerant discharged by the operation of the compressor 109 is condensed to some extent by a condenser (not shown), and further, the side or back of the refrigerator main body (heat insulating box 101), or the refrigerator main body (heat insulating box 101). ) Is condensed and liquefied while preventing condensation of the refrigerator main body (heat insulating box body 101) through a refrigerant pipe (not shown) disposed in the front opening of the) 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 109 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 112.

Here, the low-temperature and low-pressure liquid refrigerant is transported through the cold discharge air passage 141 to each storage chamber that is transported by the operation of the cooling fan 113 and exchanges heat with the air in each storage chamber, and the refrigerant in the cooler 112 evaporates. Vaporize. At this time, cool air for cooling each storage chamber in the cooling chamber 110 is generated. The low-temperature cold air is diverted from the cooling fan 113 to the refrigerating room 104, the switching room 105, the ice making room 106, the vegetable room 108, and the freezing room 107 using an air passage or a damper 130, and cooled to the respective target temperature zones.

  The vegetable compartment 108 is cooled by the cold air cooled by the cooler 112, but the cold air that cools the vegetable compartment 108 is blown by the cooling fan 113, passes through the discharge air passage 141, and is separated from the middle of the discharge air passage 141. It passes through the vegetable room damper 130a through the retained vegetable room discharge air passage 141a and flows into the vegetable room 108 from the vegetable room discharge port 143. The cold air flowing into the vegetable compartment 108 circulates around the outer periphery of the lower storage container 119, cools the lower storage container 119, is sucked in through the vegetable compartment suction port 144, passes through the vegetable compartment suction air passage 142a, and then enters the cooling chamber. Return to 110 again. Although the vegetable compartment 108 is cooled by the operation of this refrigeration cycle, when a temperature sensor (not shown) installed in the vegetable compartment 108 detects a temperature below the target temperature range, the vegetable compartment damper 130a is closed, Control is performed to stop the flow of cold air into the vegetable compartment 108.

  At this time, the mist sprayed from the mist spraying device 131 is indirectly sprayed into the refrigerating chamber 104 through the mist transporting path 146 by the operation of the fan 147 serving as the mist distribution means.

  Here, the mist supplied by the mist spraying device is sprayed to the refrigerator compartment 104 and the refrigerator compartment 104 by the fan 147 of the mist distribution means, and the transition of ozone concentration in the refrigerator compartment 104 and the refrigerator compartment 104 at that time The outline will be described with reference to FIG.

  However, since the mist discharged from the mist spraying device 131 contains OH radicals and ozone in the same ratio, the ozone concentration is measured as the mist concentration.

  First, in the refrigerator 100, the mist spraying device 131 is always operating.

  Here, when the fan 147 is operating by the fan 147 of the mist distributor, the mist is indirectly sprayed to the refrigerator compartment 104, and when the fan 147 is stopped, it is sprayed directly to the vegetable compartment 108. .

  In this way, by repeating the operation and stopping of the fan 147, the mist is intermittently sprayed from the mist spraying device to the refrigerator compartment 104 and the vegetable compartment 108.

  Further, when the mist is intermittently supplied to the refrigerator compartment 104 and the vegetable compartment 108, the supply amount of the mist is controlled so that the maximum ozone concentration in the refrigerator compartment 104 and the vegetable compartment 108 is about 0.02 ppm. On the other hand, the minimum ozone concentration is controlled to be 0.001 ppm or less.

  In this way, the ozone concentration in the refrigerator compartment 104 and the vegetable compartment 108 is different in concentration due to the mist that is sprayed intermittently, and mold and bacteria adhered to the walls of the refrigerator compartment 104 and the vegetable compartment 108 and the surface of food, etc. Stress due to the difference in mist concentration is given to microorganisms such as yeast and viruses.

  When the stress due to the difference in mist concentration was evaluated by a BOX assuming a refrigerator, the sterilization rate under the condition that the ozone concentration was controlled to a constant concentration of 0.01 ppm and the ozone concentration varied from 0 to 0.02 ppm. Then, the sterilization rate under the condition where the average concentration was controlled to 0.01 ppm was evaluated. The evaluation bacteria were Staphylococcus aureus that is a human skin resident bacteria and highly likely to act as food poisoning bacteria. The sterilization period was 48 hours.

  As a result, the sterilization rate was higher in BOX in which the ozone concentration was varied from 0 to 0.02 ppm rather than a constant ozone concentration, and concentration difference stress was applied to the bacteria. This shows that, even though the average ozone concentration is 0.01 ppm, the growth of bacteria is suppressed when the stress of ozone concentration difference is applied.

Moreover, although not shown in figure, the disinfection effect similar to Staphylococcus aureus is acquired also about colon_bacillus | E._coli which exists widely in a refrigerator warehouse. In addition, it is clear that a high sterilization effect is obtained for pathogens such as O-157, MRSA, and influenza virus, and thus it is clear that the bacterium has a high sterilization effect against a wide range of bacterial species such as bacteria, molds and viruses. became.

  In addition, by electrostatically adding to the mist, water molecules in the mist are radicalized to generate OH radicals. In addition to the oxidizing power of ozone, the oxidizing power of OH radicals can cause bacteria, mold, yeast, viruses, etc. The ability of decomposing microorganisms can be improved.

  In the above experiment, evaluation was performed on behalf of the vegetable room 108 which is the highest temperature range, but since the effect is exhibited at the highest temperature range, the refrigerator compartment which is a temperature range lower than the vegetable room 108 The same effect can be obtained in the storage chamber 104 or the like.

  As described above, in the first embodiment, by providing the vegetable compartment 108 with the mist spraying device 131, the mist can be directly sprayed onto the vegetable compartment 108, and further, the mist transporting means serving as the mist supply means. By providing the path 146 and intermittently repeating the operation and stopping of the fan 147 by the mist transporting means, the mist can pass through the mist transporting path 146 and intermittently indirectly spray the mist to the refrigerator compartment 104 as well. On the other hand, the vegetable room can be sprayed directly and intermittently, so the mist concentration in the refrigerator compartment 104 and the vegetable compartment 108 fluctuates, and mold and By applying stress to the microorganisms such as bacterial yeasts and viruses due to fluctuations in the mist concentration difference, the increase can be suppressed and effective sterilization can be achieved. It became.

  Here, the damper 148 is not always necessary, and the amount of mist distribution can be adjusted by the opening area of the mist discharge port.

  Further, the mist transporting path 146 has the same effect even when an air path of a refrigeration cycle is used, and the mist can be indirectly sprayed to the refrigerating chamber 104, the switching chamber 105, the ice making chamber 106, and the freezing chamber 107. In this case, since the mist transporting path 146 is not specially installed, the number of parts of the refrigerator can be reduced, and the space of the refrigerator can be effectively used. Further, the fan 147 serving as the mist diversion means also has an effect of diverting the mist in the same manner as the cooling fan 113 for circulating the cold air in the refrigeration cycle. Furthermore, even if the damper 148 serving as the mist distribution means is used as the vegetable compartment damper 130, it has the effect of distributing the mist.

  In this case, since the circulation of the cold air of the refrigeration cycle of the refrigerator is used, it is not necessary to provide a special means for indirectly spraying the mist, so that the refrigerator parts can be reduced and the refrigerator space can be effectively used. it can.

  The direct spraying and indirect spraying defined in the present invention are direct spraying when the mist is sprayed only through the air passage inside the storage room and not through the air passage outside the storage room, and the mist transporting path which is an air passage outside the storage room. The case where mist is supplied through 146 is referred to as indirect spraying.

Further, by providing the mist transporting path 146 in the vicinity of the mist spraying device 131, it becomes possible to efficiently supply the mist generated from the mist spraying device 131 to the mist transporting path 146, and it becomes easier to spray indirectly. Have

(Embodiment 2)
FIG. 6 is a longitudinal sectional view of a refrigerator according to Embodiment 2 of the present invention, and FIG. 7 is a perspective view of a vegetable room in the refrigerator according to Embodiment 2 of the present invention.

  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. , Can be applied in combination.

  In the figure, a lower space of the cooler 112 is provided with a radiant heater 114 made of a glass tube for defrosting the frost and ice adhering to the cooler 112 and its surroundings during cooling, and further generated at the lower portion thereof during the defrosting. A drain pan 115 for receiving defrosted water, a drain tube 116 penetrating from the deepest part to the outside of the warehouse are configured, and an evaporating dish 117 is configured outside the downstream side of the warehouse.

  In addition, a mist-dedicated section 150 is provided on the top of the vegetable compartment 108. In this mist-dedicated section, a mist-dedicated section opening 151 is provided as an opening on the surface in contact with the vegetable compartment 108. Further, the mist dedicated section 150 has a structure installed in a state where the mist dedicated section 150 is connected to the vegetable room suction air passage 142 a by the mist dedicated section connecting portion 152. (See FIG. 3) Further, a mist spraying device 131 is provided in the mist dedicated section 150, and the mist generated from the mist spraying device 131 is stored in the mist dedicated section 150.

  The mist stored in the mist dedicated section 150 is configured to be supplied to the vegetable room suction air passage 142a through the mist dedicated section connecting portion 152. Further, the mist is also supplied to the vegetable compartment 108 through the mist dedicated section opening 151.

  About the refrigerator 100 of this Embodiment comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  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 109 is condensed to some extent by a condenser (not shown), and further, the side or back of the refrigerator main body (heat insulating box 101), or the refrigerator main body (heat insulating box 101). ) Is condensed and liquefied while preventing condensation of the refrigerator main body (heat insulating box body 101) through a refrigerant pipe (not shown) disposed in the front opening of the) 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 109 to become a low-temperature and low-pressure liquid refrigerant and reaches the cooler 112.

  The vegetable compartment 108 is cooled by the cold air cooled by the cooler 112, but the cold air that cools the vegetable compartment 108 is blown by the cooling fan 113, passes through the discharge air passage 141, and is separated from the middle of the discharge air passage 141. It passes through the vegetable room damper 130a through the retained vegetable room discharge air passage 141a and flows into the vegetable room 108 from the vegetable room discharge port 143. The cold air flowing into the vegetable compartment 108 circulates around the outer periphery of the lower storage container 119, cools the lower storage container 119, is sucked in through the vegetable compartment suction port 144, passes through the vegetable compartment suction air passage 142a, and then enters the cooling chamber. Return to 110 again. Although the vegetable compartment 108 is cooled by the operation of this refrigeration cycle, when a temperature sensor (not shown) installed in the vegetable compartment 108 detects a temperature below the target temperature range, the vegetable compartment damper 130a is closed, Control is performed to stop the flow of cold air into the vegetable compartment 108.

  At this time, the mist spraying device 131 is always operating and is controlled so as to always store the mist in the mist dedicated section 150. For this reason, the mist stored in the mist dedicated section 150 is sprayed directly to the vegetable compartment 108 via the mist dedicated section opening 151, while the vegetable compartment inlet 144 via the mist dedicated section connecting portion 152. Is always supplied. By this control, the mist is always directly sprayed in the vegetable compartment 108.

  On the other hand, when the vegetable compartment 108 is being cooled by the refrigeration cycle, the mist is supplied from the mist exclusive compartment 150 to the vegetable compartment intake air passage 142a via the mist exclusive compartment connecting portion 152. The mist flows into the cooling chamber 110. And it will be supplied to the refrigerator compartment 104, the switching room 105, the ice making room 106, the vegetable compartment 108, and the freezer compartment 107 which are each storage room of the refrigerator 100 from the cooling room 110 by a cooling fan, and it will indirectly spray. Become.

  While this refrigeration cycle is in operation and cold air is flowing into the vegetable compartment 108, the mist is actively and indirectly sprayed to each storage compartment of the refrigerator 100 other than the vegetable compartment 108, and the vegetable compartment becomes a temperature below the objective temperature range and the vegetable compartment. When the inflow of cold air to 108 stops, the mist is positively sprayed directly into the vegetable compartment 108. In this way, the mist is sprayed directly and indirectly from the mist dedicated section 150 to each storage chamber.

  At this time, the outline of the timing of spraying mist from the mist spraying device 131 and the transition of ozone concentration in the vegetable compartment and the refrigerator compartment will be described with reference to FIG.

  However, since the mist released from the mist spraying device 131 contains the same ratio of OH radicals and ozone, the ozone concentration may be measured as the mist concentration.

  First, in the refrigerator 100, the cooling fan 113 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 113 operates when it is turned on, and the cooling fan 113 when it is turned off. Will be stopped.

  The damper 130 and the damper 130a are periodically opened and closed at the same timing to distribute the cold air generated in the cooling chamber 110 to the refrigerator compartment 104, and when the temperature of the refrigerator compartment 104 and the vegetable compartment 108 is higher than a predetermined temperature. Open and supplying cool air.

  Here, in the first embodiment, when the cooling fan 113 is operated, mist generated from the mist spraying device 131 is taken into the cooling chamber 110 through the suction port 144 and is also sent to the freezing chamber 107, the switching chamber 105, and the ice making chamber 106. And mist is supplied. At this time, since the damper 130 is open, the mist is supplied to the refrigerator compartment 104 through the air passage 141.

  Thus, when the cooling fan 113 operates and the damper 130 and the damper 130a are open, mist is sprayed indirectly into the refrigerator compartment 104. Further, since the sprayed mist is limited to when the fan is operating and the damper 130 and the damper 130a are open, indirect spraying stops when the damper is closed. In this way, mist is intermittently supplied to the refrigerator compartment 104.

  On the other hand, the mist is supplied directly into the vegetable compartment 108 when the damper 130 and the damper 130a are closed regardless of whether the cooling fan 113 is operating or not. In this way, only when the damper 130 and the damper 130a are closed, the mist is sprayed directly from the mist spraying device to the vegetable compartment 108. Therefore, the mist is intermittently applied to the vegetable compartment 108 as well. Will be supplied.

  Further, at this time, when the mist is intermittently supplied to the refrigerator compartment 104 and the vegetable compartment 108, the supply amount of the mist is controlled so that the maximum ozone concentration in the refrigerator compartment 104 and the vegetable compartment 108 is about 0.02 ppm. On the other hand, the minimum value of the ozone concentration is controlled to be 0.001 ppm or less.

  In this way, the ozone concentration in the refrigerator compartment 104 and the vegetable compartment 108 is different in concentration due to the mist that is sprayed intermittently, and mold and bacteria adhered to the walls of the refrigerator compartment 104 and the vegetable compartment 108 and the surface of food, etc. Stress due to the difference in mist concentration is given to microorganisms such as yeast and viruses.

  As described above, in the second embodiment, the mist spraying device 131 is provided by providing the mist spraying dedicated section 150 with the mist spraying dedicated section opening and further adjoining the vegetable room suction air passage 142a. The mist sprayed from can be efficiently sprayed directly onto the vegetable compartment 108, and further can be indirectly sprayed onto the refrigerator compartment 104, the switching compartment 105, the ice making compartment 106, the vegetable compartment 108, and the freezer compartment 107 by a refrigeration cycle. As a result, the oxidation of OH radicals and ozone contained in the mist increases the number of microorganisms such as mold, bacterial yeast, and viruses attached to the wall surfaces, air, and vegetable surfaces of all refrigerator storage rooms. Can be suppressed, and malodorous components can be decomposed.

  Here, in the second embodiment, the mist exclusive section 150 is configured to be adjacent to the vegetable room suction air passage 142a. However, the present invention is not limited to this, and the same may be provided in the vicinity of the vegetable room suction port 144. It is a thing that works.

  As described above, in the refrigerator according to the present invention, the mist supplied from the mist spraying device is directly sprayed to a specific storage room provided with the mist spraying device, and indirectly to a storage room other than the specific storage room. By providing the supply means, it becomes possible to spray indirectly, it becomes possible to supply the mist to all the storage rooms of the refrigerator, and the wall surfaces in the chambers of all the storage rooms by the fine mist containing OH radicals It is possible to suppress an increase in the number of microorganisms such as mold, bacterial yeast, and viruses attached to the air or vegetable surface.

DESCRIPTION OF SYMBOLS 100 Refrigerator 101 Heat insulation box 104 Refrigeration room 105 Switching room 106 Ice making room 107 Freezing room 108 Vegetable room 109 Compressor 110 Cooling room 112 Cooler 113 Cooling fan 118 Door 119 Lower storage container 120 Upper storage container 130 Damper 131 Mist sprayer 141 Discharge air path 141a Vegetable room discharge air path 142 Suction air path 142a Vegetable room suction air path 143 Vegetable room discharge port 144 Vegetable room suction port 146 Indirect supply means (mist transport path)
147 Mist diversion means (fan)
148 Mist diversion means (damper)
150 Mist dedicated section 151 Mist dedicated section opening 152 Mist dedicated section connecting section

Claims (12)

The heat insulating box includes a storage chamber partitioned by a partition wall, a cooling chamber that generates cool air for cooling the storage chamber, an air passage through which the cool air is conveyed, and a mist that generates mist to be supplied to the storage chamber. A spray device, and the storage chamber includes a plurality of storage chambers including a specific storage chamber provided with the mist spraying device and a storage chamber other than the specific storage chamber, and stores other than the specific storage chamber. The chamber is provided with indirect supply means for intermittently supplying the mist generated by the mist spraying device through an air passage , and the indirect supply means returns the cold air from the specific storage chamber to the outside of the specific storage chamber. A refrigerator that also serves as a suction air passage, adds mist to the cold air conveyed from the suction air passage, and intermittently indirectly supplies the mist to a storage room other than the specific storage room . The indirect supply means, the recording head having an ejection air passage for conveying the cold air of the storage compartment from the cooling chamber for cooling the refrigerating cycle into the storage compartment, the mist when the supply of the pre-Symbol cold air is stopped The refrigerator according to claim 1 , wherein the refrigerator is supplied indirectly. The refrigerator according to claim 1 or 2 , wherein the indirect supply means is provided in the vicinity of the mist spraying device. The refrigerator according to any one of claims 1 to 3 , wherein the indirect supply means includes mist distribution means for switching presence / absence of mist supply to a storage chamber other than the specific storage chamber. 5. The mist-dedicated section provided with a mist spraying device in an independent section that is different from the storage space in which the food is stored in the specific storage chamber. 6. refrigerator. 5. The mist spraying section provided with a mist spraying device is used as the storage section for storing the food partitioned in the specific storage chamber and the storage chamber. 5. refrigerator. 6. The refrigerator according to claim 5 , wherein the mist exclusive section is independent of the discharge air passage and the suction air passage and communicates with the discharge air passage or the suction air passage. The refrigerator according to claim 5 , wherein the mist exclusive section is provided in the vicinity of the suction air passage. The refrigerator according to claim 5 , wherein the mist exclusive section is provided on the rear side of the top surface of the storage room. 6. The refrigerator according to claim 5 , wherein the mist- dedicated section has an opening on a surface in contact with the storage section in the storage chamber. The refrigerator according to any one of claims 1 to 10 , wherein a difference in mist concentration in the storage chamber is 0.01 ppm or more in terms of ozone concentration contained in the mist. The refrigerator according to any one of claims 1 to 11 , wherein the mist concentration in the storage chamber is an ozone concentration contained in the mist and a minimum concentration is 0.001 ppm or less.