JP2018200156A - Storage container - Google Patents

Abstract

To provide a storage container that reduces oxygen in a storage chamber by exhausting air in the storage chamber by exhausting means, and can store a stored object in a high-humidity atmosphere.SOLUTION: A storage container comprises a cabinet including a storage chamber 12, humidifying means 30 for humidifying air in the storage chamber 12, blocked containers 72 and 80 arranged in the storage chamber 12, gas permeable sheets 78 and 79 constituting a portion of wall surfaces partitioning the block containers 72 and 80, an oxygen separation membrane 62 provided in the storage chamber 12, and exhausting means for exhausting air in the storage chamber 12 transmitted through the oxygen separation membrane 62, to the outside of the cabinet.SELECTED DRAWING: Figure 2

Description

  Embodiments of the present invention relate to storage.

  As a deterioration factor of stored items such as food stored in a storage such as a refrigerator, there is oxidation due to oxygen present in the air. Then, the storage which can suppress the oxidation of stored goods and maintain the freshness of stored goods by reducing the oxygen of the space which stores a foodstuff is known.

  For example, in Patent Documents 1 and 2 below, air in a storage chamber is sucked through an oxygen separation membrane (oxygen-enriched membrane) by an exhaust means such as a pump, whereby high oxygen concentration air is discharged outside the storage chamber. Storages that reduce oxygen in the storage chamber have been proposed.

  In these storages, moisture is exhausted together with oxygen, and the storage chamber is easily dried. Therefore, in the following Patent Document 1, it has been proposed to adjust the humidity in the storage chamber by providing a humidity control member in the storage chamber.

  However, since there is a limit to the amount of moisture that the humidity control member absorbs and holds, if the exhaust by the exhaust means continues, the amount of water held by the humidity control member may decrease and the humidity in the storage chamber cannot be adjusted. There is.

JP 2004-360948 A JP 2009-174724 A

  Therefore, an object of the present invention is to provide a storage that can store stored items in a high-humidity atmosphere in a storage that reduces oxygen in the storage by exhausting the air in the storage by an exhaust unit.

  The storage of this embodiment constitutes a part of the cabinet which has a storage room, the humidification means which humidifies the air of the storage room, the closure container arranged in the storage room, and the wall which divides the closure container A gas permeable sheet, an oxygen separation membrane provided in the storage chamber, and exhaust means for exhausting the air in the storage chamber that has permeated the oxygen separation membrane to the outside of the cabinet.

Sectional drawing of the storage which concerns on 1st Embodiment of this invention. Sectional drawing which shows the structure of the vegetable compartment vicinity of the storehouse shown in FIG. The block diagram which shows the electric constitution of the storage shown in FIG. Sectional drawing which shows the structure of the vegetable compartment vicinity of the storehouse which concerns on 2nd Embodiment of this invention. Sectional drawing which shows the structure of the vegetable compartment vicinity of the storehouse which concerns on the example of a change of this invention

(First embodiment)
Hereinafter, the storage of 1st embodiment is demonstrated based on drawing. The storage of this embodiment is a refrigerator 1 in which a storage chamber provided inside is cooled to a predetermined temperature.

  The refrigerator 1 which concerns on this embodiment is provided with the cabinet 2 which consists of a heat insulation box opened to the front, as shown in FIG. The cabinet 2 includes a heat insulating material such as a vacuum heat insulating material or a foam heat insulating material in a heat insulating space 5 formed between an outer box 3 made of steel plate and an inner box 4 made of synthetic resin. In the cabinet 2, a plurality of storage spaces are provided inside the inner box 4, and the storage spaces are partitioned vertically by a heat insulating partition wall 6.

  The space above the heat insulating partition wall 6 is a storage room that is cooled to a refrigeration temperature zone (for example, 1 to 4 ° C.), and the interior is further partitioned vertically by the partition wall 7. A refrigerator compartment 10 is provided above the partition wall 7, and a vegetable compartment 12 is provided below the partition wall 7.

  The inside of the refrigerator compartment 10 is partitioned into a plurality of stages in the vertical direction by a plurality of shelf boards 9. A chilled chamber 8 for storing a drawer type chilled container is provided in a space partitioned vertically by the partition wall 7 and the bottom shelf 9. A refrigeration temperature sensor 25 that measures the temperature in the refrigeration chamber 10 is provided on the back surface of the refrigeration chamber 10. At the front opening of the refrigerating room 10, a rotating refrigerating room door 11 pivotally supported by a hinge is provided.

  The front opening of the vegetable compartment 12 is closed by a drawer-type vegetable compartment door 13. A pair of left and right support frames for holding the storage container 70 are fixed to the inside of the vegetable compartment door 13 so that the storage container 70 is pulled out of the storage as the door is opened. A door sensor 29 is provided at the peripheral edge of the front opening of the vegetable compartment 12, and detects whether the vegetable compartment door 13 is open or closed.

  As shown in FIG. 2, the storage container 70 provided in the vegetable compartment 12 includes a lower container 71 opened on the upper surface provided over almost the entire width of the vegetable compartment 12, and an upper container provided above the lower container 71. 72, and has an overlapping structure in two upper and lower stages.

  The lower container 71 is a box-shaped container with a bottom surrounded by a front wall, a rear wall, and left and right side walls, and a stored item is taken in and out from an upper surface opening that opens upward. The lower container 71 is held by a pair of left and right support frames fixed to the back side of the vegetable compartment door 13, and is configured to be pulled out with the opening operation of the vegetable compartment door 13.

  The lower container 71 is provided with a front and rear partition 74 protruding upward from the inner bottom surface. The front / rear partition 74 is provided so as to connect the inner surfaces of the left and right side walls of the lower container 71, a lower front container 81 is formed on the front side of the front / rear partition 74, and a lower rear container 80 is formed on the rear side. .

  An opening 80b is formed in the rear wall 80a of the lower rear container 80, and a gas permeable sheet 78 is provided so as to close the opening 80b. The gas permeable sheet 78 constitutes a part of a wall surface defining the lower rear container 80 and is provided facing a rear flow path 94 described later.

  The lower rear container 80 is closed at the upper rear end by a ceiling wall 80d extending forward from the upper end of the rear wall 80a, and an upper opening 80c is formed in front of the lower rear container 80 for taking stored goods into and out of the lower rear container 80. Yes.

  The upper opening 80c of the lower rear container 80 is covered with the upper container 72 in a state where the vegetable compartment door 13 shown in FIGS. 1 and 2 is closed and the storage container 70 is accommodated in the vegetable compartment 12. The lower rear container 80 includes an upper container 72 that closes the upper opening 80c and a gas permeable sheet 78 that closes the opening 80b of the rear wall 80a, along with air (wind) that flows outside the container such as air circulating in the vegetable compartment 12. ) To form a closed container in which direct entry is suppressed.

  When opening the upper surface opening 80 c of the lower rear container 80, the vegetable compartment door 13 is opened and the lower container 71 is pulled out, and then the upper container 72 is slid backward relative to the lower container 71 and the upper surface is opened. Opening 80c is opened. Note that the upper surface opening of the lower front container 81 is open without being covered by the upper container 72 regardless of whether the vegetable compartment door 13 is open or closed.

  The upper container 72 is a box-shaped container with a bottom surrounded by a front wall, a rear wall 72a, and left and right side walls, and a stored item is taken in and out from an upper surface opening 72c that opens upward. The upper surface opening 72c is closed by a lid 76 so as to be opened and closed.

  The upper container 72 is disposed below the partition wall 7 that partitions the refrigerator compartment 10 and the vegetable compartment 12 at a predetermined interval, and forms an upper channel 91 that extends in the front-rear direction between the upper container 72 and the partition wall 7. The upper container 72 is pulled out of the container independently of the lower container 71 by sliding the inner box rails provided on the left and right inner wall surfaces of the vegetable compartment 12 and the upper ends of the left and right side walls of the lower container 71 in the front-rear direction. It is provided as possible.

An opening 72b is formed in the rear wall 72a of the upper container 72, and a gas permeable sheet 79 is provided so as to close the opening 72b. The gas permeable sheet 79 constitutes a part of a wall surface defining the upper container 72 and is provided facing an inflow space S described later.
The upper container 72 is air (wind) that flows outside the container, such as air circulating in the vegetable compartment 12, together with a lid 76 that closes the upper opening 72c and a gas permeable sheet 79 that closes the opening 72b of the rear wall 72a. This constitutes a closed container in which direct entry of is suppressed.

  A vent hole 77 that opens to the lower rear container 80 is provided at the rear of the bottom surface of the upper container 72. The upper container 72 and the lower rear container 80 communicate with each other through the vent hole 77, and the upper container 72 and the lower rear container The container 80 forms a continuous closed container.

  Such a storage container 70 includes the rear wall 72a of the upper container 72, the ceiling wall 80d of the lower rear container 80, the partition wall 7, the EVA cover 23, when the vegetable compartment door 13 is closed and stored in the vegetable compartment 12. And the inflow space S defined by the left and right inner wall surfaces of the vegetable compartment 12 is formed.

  The gas permeable sheets 78 and 79 are waterproof and moisture permeable sheet materials, for example, porous sheet materials having a large number of holes having a diameter of 0.5 μm to 3 μm, and allow water vapor particles and oxygen molecules to pass through. Blocks larger water particles than. Moreover, since it is porous, it also has a predetermined wind barrier property that restricts the flow of air (wind). For example, a moisture permeable waterproof sheet laminated with a polyester long fiber nonwoven fabric and a polyethylene porous film can be used as the gas permeable sheets 78 and 79.

  In a space below the heat insulating partition wall 6, an ice making chamber (not shown) equipped with an automatic ice maker and a first freezing chamber 16 are provided on the left and right sides, and a second freezing chamber 17 is interposed below the first freezing chamber 17 via a partition plate 22. Is provided.

  The ice making room, the first freezing room 16 and the second freezing room 17 are all cooled to a freezing temperature zone (for example, −17 ° C. or lower). A freezing temperature sensor 26 for measuring the temperature in the second freezing chamber 17 is provided on the back surface of the second freezing chamber 17.

  The openings of the ice making room, the first freezing room 16, and the second freezing room 17 are closed by drawer type doors 18 and 19 as in the vegetable room 12. The storage containers 20 and 21 are held by a pair of left and right support frames fixed to the back surfaces of the doors 18 and 19, and the storage containers 20 and 21 are configured to be pulled out of the storage as the door is opened. Yes.

  At the rear of the refrigerator compartment 10 and the vegetable compartment 12, there are a refrigerator compartment 32 that is divided forward and backward by an evaporative cover 23, a duct 33 that connects the refrigerator compartment 10 and the refrigerator compartment 32, and the refrigerator compartment 10 and the vegetable compartment. A return duct 44 that connects the refrigeration cooler chamber 32 and the refrigeration cooler chamber 32 is formed.

  The refrigeration cooler chamber 32 stores a refrigeration cooler 30, a refrigeration fan 31, and a drain pan 27. Air in the refrigeration cooler chamber 32 cooled by the refrigeration cooler 30 is passed through a duct 33 by the refrigeration fan 31. Supply to the refrigerator compartment 10.

  The drain pan 27 is disposed in a return duct 44 that returns the air that has flowed through the refrigerator compartment 10 and the vegetable compartment 12 to the refrigerator refrigerator 30 so as to be positioned below the refrigerator refrigerator 30 and is used in the defrosting operation. Condensed water (defrosted water) generated from 30 is received. Condensed water collected in the drain pan 27 is discharged via a drainage hose 28 to an evaporating dish 41 disposed in a machine room 38 provided at the lower back of the cabinet 2.

  The drainage hose 28 for discharging the condensed water accumulated in the drain pan 27 to the machine room 38 is inserted into the insertion hole 2a that connects the refrigeration cooler room 32 and the machine room 38 provided on the back wall of the cabinet 2 to be refrigerated. It is drawn out from the cooler chamber 32 to the machine chamber 38.

  The insertion hole 2a provided in the cabinet 2 has a larger diameter than the drainage hose 28 to be inserted. Therefore, in a state where the drainage hose 28 is inserted into the insertion hole 2 a, a continuous gap is formed between the insertion hole 2 a and the drainage hose 28 from the refrigeration cooler chamber 32 to the machine chamber 38. That is, the gap formed between the insertion hole 2 a and the drain hose 28 functions as a vent hole 2 c that communicates the vegetable compartment 12 and the machine compartment 38.

  At the rear of the ice making room, the first freezing room 16 and the second freezing room 17, there are a freezing cooler room 36 divided forward and backward by an evaporative cover 24, an ice making room, the first freezing room 16 and the second freezing room 17. And a duct 37 connecting the refrigeration cooler chamber 36 is formed. The refrigeration cooler chamber 36 accommodates a refrigeration cooler 34 and a refrigeration fan 35, and the air in the refrigeration cooler chamber 36 cooled by the refrigeration cooler 34 is refrigerated by the refrigeration fan 35 through the duct 37, The first freezer 16 and the second freezer 17 are supplied.

  The refrigeration cooler 30 and the refrigeration cooler 34 constitute a refrigeration cycle together with a compressor 39 and a condenser (not shown) housed in the machine room 38. In the refrigeration cycle, the refrigerant discharged from the compressor 39 is supplied to one of the refrigeration cooler 30 and the refrigeration cooler 34 by the switching valve 47 (see FIG. 3), whereby the refrigeration cooler 30 and the refrigeration cooler are brought to a predetermined temperature. 34 is cooled.

  The refrigeration cooler 30 cools the air in the refrigeration cooler chamber 32 to generate cold air of, for example, −10 to −20 ° C. At that time, since the refrigeration cooler 30 exchanges heat with the air circulated in the refrigeration chamber 10 and the vegetable compartment 12 in the refrigeration temperature zone, the frost adhering to the refrigeration cooler 30 is melted and the air contains a lot of moisture (humidification). Cold).

  As shown by the arrows in FIG. 1 and FIG. 2, the flow of the humidified cold air is supplied to the refrigerating chamber 10 from the outlet 33 a via the duct 33 by the rotation of the refrigerating fan 31. Cool and humidify.

  Part of the humidified cold air flowing through the refrigerator compartment 10 flows into the return duct 44 from the suction port 42 provided at the rear of the partition wall 7 and returns to the refrigerator refrigerator chamber 32, and the remaining air is provided in the partition wall 7. It flows into the vegetable compartment 12 through the communication path 7a.

  The communication path 7a is provided at the rear end of the partition wall 7 so as to open to the inflow space S defined in the upper rear part of the vegetable compartment 12, and the air that has been humidified and cooled by the refrigeration cooler 30 passes through the refrigeration compartment 10. After flowing, it flows into the inflow space S through the communication path 7a.

  The inflow space S is connected to a circulation channel 90 formed between the inner wall of the vegetable compartment 12 and the storage container 70, and part of the humidified cold air that has flowed into the inflow space S flows into the circulation channel 90.

  The circulation channel 90 includes the upper channel 91, the front channel 92 formed between the vegetable compartment door 13 and the front wall of the lower container 71 and extending in the vertical direction, and between the heat insulating partition wall 6 and the bottom surface of the lower container 71. The lower flow passage 93 extending in the front-rear direction and the rear flow passage 94 extending in the vertical direction formed between the back wall of the cabinet 2 and the rear wall 80a of the lower rear container 80 are sequentially connected. Become.

  In such a circulation channel 90, the rear end of the upper channel 91 is connected to the inflow space S, and the upper end of the rear channel 94 is the suction port of the return duct 44 provided at the upper back of the vegetable compartment 12. 43. The humidified cold air flowing into the circulation channel 90 sequentially flows through the upper channel 91, the front channel 92, the lower channel 93, and the rear channel 94, and then passes through the return duct 44 to the refrigeration cooler chamber 32. Return to. The cold air that has returned to the refrigeration cooler chamber 32 is heat-exchanged with the refrigeration cooler 30 to be humidified and cooled again.

  The refrigeration cooler 34 cools the air in the refrigeration cooler chamber 36 to generate, for example, cold air of −20 to −30 ° C. The generated cold air is supplied to the ice making room, the first freezing room 16 and the second freezing room 17 through the duct 37 by the rotation of the freezing fan 35 and cools these storage rooms. The air that has cooled the ice making chamber and the first freezing chamber 16 flows into the second freezing chamber 17 through a through hole (not shown), merges with the cold air supplied to the second freezing chamber 17, and then the second freezing chamber. 17 is returned to the refrigeration cooler chamber 36 through the return duct 46 from the suction port 45 provided on the back surface of the heat exchanger 17, and is cooled again by exchanging heat with the refrigeration cooler 34.

  In the vegetable compartment 12, an oxygen separation module 60 is provided below the refrigeration cooler compartment 32 partitioned by the evaporation cover 23. The oxygen separation module 60 includes an oxygen separation membrane 62 provided in a box-shaped case 61, and the oxygen separation membrane 62 is provided so as to face the rear side flow path 94 constituting the circulation flow path 90.

  The oxygen separation membrane 62 partitions the vegetable compartment 12 and the inside of the case 61 back and forth, and when a pressure difference occurs between both sides of the oxygen separation membrane 62, oxygen in the high-pressure side air diffuses and moves inside the membrane and the low-pressure side surface The oxygen concentration on the low-pressure side is reduced by leaving.

  The interior of the case 61 is connected by an exhaust pump 63 and an exhaust hose 64 disposed in a machine room 38 provided at the lower back of the cabinet 2, and the air inside the case 61 is sucked by the operation of the exhaust pump 63, The chamber 38 is exhausted to the outside of the cabinet 2.

  The exhaust pump 63 is preferably provided in the machine room 38 while being covered with a soundproof material. Thereby, the noise by the operation sound of the exhaust pump 63 can be suppressed.

  An exhaust hose 64 that exhausts oxygen that has passed through the oxygen separation membrane 62 to the machine chamber 38 is inserted into the insertion hole 2 b that communicates the vegetable chamber 12 provided in the back wall of the cabinet 2 and the machine chamber 38. Is pulled out from the oxygen separation module 60 provided in the machine room 38. In addition, as illustrated in FIG. 1, the insertion hole 2 a through which the drainage hose 28 is inserted and the insertion hole 2 b through which the exhaust hose 64 are inserted may be combined to form one insertion hole.

  A control unit 50 that controls the overall operation of the refrigerator 1 is provided at the upper back of the cabinet 2. As shown in FIG. 3, the control unit 50 stores signals input from various sensors such as a refrigeration temperature sensor 25, a freezing temperature sensor 26, and a door sensor 29, and a memory 51 including a nonvolatile recording medium such as an EEPROM. By controlling various electrical components such as the refrigeration fan 31, the refrigeration fan 35, the compressor 39, the switching valve 47, and the exhaust pump 63 based on the control program, each room can be cooled to a predetermined temperature, or the vegetable room 12 The oxygen concentration inside the upper container 72 and the lower container 80 provided in is reduced.

  Specifically, when cooling the refrigerator compartment 10 and the vegetable compartment 12 in the refrigerator temperature zone, the control unit 50 switches the switching valve 47 provided in the refrigeration cycle so that the refrigerant flows into the refrigerator refrigerator 30. At the same time, a refrigeration cooling operation for operating the refrigeration fan 31 is executed.

  Thereby, the air in the refrigerator compartment 32 humidified and cooled by the refrigerator refrigerator 30 is blown to the refrigerator compartment 10 and the vegetable compartment 12 through the duct 33, and the refrigerator temperature sensor 25 provided on the back of the refrigerator compartment 10. The refrigerator compartment 10 and the vegetable compartment 12 are cooled such that the detected temperature falls within a predetermined temperature range.

At that time, although the gas permeable sheets 78 and 79 restrict the flow of air (wind), some humidified cold air flowing into the inflow space S from the refrigerator compartment 10 is allowed to pass through the gas. It flows into the upper container 72 through the sheet 79, and most of the remaining humidified cold air is blocked by the gas permeable sheet 79, stays in the inflow space S without flowing into the upper container 72, and enters the inflow space S. Unhumidified humidified cold air flows into the circulation channel 90.
The humidified cold air that has flowed into the upper container 72 through the gas permeable sheet 79 causes a gentle air flow in the upper container 72 and the lower rear container 80 that communicates with the upper container 72. Is humidified and cooled and then discharged through a gas permeable sheet 78 provided in the lower post-stage container 80.

  Further, the humidified cold air staying in the inflow space S contains a larger number of water vapor particles than the air in the storage room such as the vegetable room 12, so the gas permeable sheet 79 in which the water vapor particles contained in the humidified cold air have moisture permeability. And enters the upper container 72 from the inflow space S. The water vapor particles that have entered the upper container 72 diffuse into the upper container 72 and also diffuse into the lower rear container 80 through the vent hole 77, and humidify the inside of the upper container 72 and the lower rear container 80.

  The humidified cold air flowing into the circulation flow path 90 from the inflow space S humidifies and cools the vegetable compartment 12 while sequentially flowing through the upper flow path 91, the front flow path 92, the lower flow path 93, and the rear flow path 94. As a result, the inside of the storage container 70 is indirectly cooled from the outside. Further, the water vapor particles contained in the humidified cold air flowing through the rear channel 94 enter the lower rear container 80 from the inflow space S through the gas permeable sheet 79 and humidify the lower rear container 80 and the upper container 72.

  When cooling the ice making chamber, the first freezing chamber 16, and the second freezing chamber 17, the control unit 50 switches the switching valve 47 provided in the refrigeration cycle so that the refrigerant flows to the refrigeration cooler 34. At the same time, a refrigeration cooling operation for operating the refrigeration fan 35 is executed. Thereby, the air cooled by the freezing cooler 34 is blown to the ice making room, the first freezing room 16 and the second freezing room 17, and the detected temperature of the freezing temperature sensor 26 provided on the back surface of the second freezing room 17. The ice making room, the first freezing room 16 and the second freezing room 17 are cooled so that the temperature falls within a predetermined temperature range.

  Further, in order to execute the oxygen reduction operation for reducing the oxygen concentration in the upper container 72 and the lower container 80, the exhaust pump 63 provided in the machine room 38 is operated. As a result, the oxygen separation module 60 has a lower pressure inside the case 61 than the space on the vegetable compartment 12 side of the oxygen separation membrane 62, so oxygen in the vegetable compartment 12 passes through the oxygen separation membrane 62 and passes through the exhaust hose 64. The air is exhausted to the outside of the cabinet 2, and the oxygen concentration in the vegetable compartment 12 decreases.

  The gas permeable sheets 78 and 79 are provided with a large number of holes of 0.5 μm to 3 μm, for example, and oxygen molecules can pass through these holes. When the oxygen concentration decreases, oxygen molecules inside the upper container 72 and the lower rear container 80 pass through the gas permeable sheets 78 and 79 and flow out of the storage container 70. As a result, the lower rear container 80 and the upper container 72 The oxygen concentration inside is reduced.

  In this embodiment, the lower rear container 80 and the upper container 72 provided with the gas permeable sheets 78 and 79 are arranged in the vegetable compartment 12, and the humidified cold air humidified and cooled by the refrigeration cooler 30 during the refrigeration cooling operation is supplied to the vegetable compartment 12. Supply. Therefore, even if water vapor particles are discharged together with oxygen by the exhaust pump 63 during the oxygen reduction operation, the water vapor particles contained in the humidified cold air generated during the refrigeration cooling operation pass through the gas permeable sheets 78 and 79 and the upper container 72. And it can be supplied to the inside of the lower post-container 80 and the inside of the upper post-container 72 and the lower post-container 80 can be humidified to suppress drying.

  The gas permeable sheets 78 and 79 can prevent the air flowing outside the upper container 72 and the lower rear container 80 from directly entering the upper container 72 and the lower rear container 80, so that the vegetables can be used during the refrigeration cooling operation. Since the air flowing through the chamber 12 directly reduces the amount of air that directly strikes the stored items stored in the upper and lower containers 72 and 80, drying of the stored items can be suppressed.

  In other words, the gas permeable sheet 78 is supplied to the vegetable compartment 12 by supplying air that is humidified and cooled by the refrigeration cooler 30 during the refrigeration cooling operation and that has become colder and humider than the air in the refrigerator compartment 10 and the vegetable compartment 12. , 79 through which the water vapor particles are supplied to the inside of the upper container 72 and the lower container 80, and the air that has been humidified and cooled by the refrigeration cooler 30 does not necessarily reach the saturated water vapor amount is stored in vegetables, etc. It is possible to suppress taking moisture directly by hitting the product.

  Even if the doors 11 and 13 for closing the vegetable compartment 12 and the refrigerator compartment 10 communicating with the compartment are opened and the outside air with high oxygen concentration flows into the vegetable compartment 12, the lower rear container 80 and the upper container Inflow of outside air to the inside of 72 is suppressed. Therefore, a rapid increase in the oxygen concentration in the lower rear container 80 and the upper container 72 can be suppressed, and the execution time of the oxygen reduction operation (the operation time of the exhaust pump 63) can be shortened. Drying of the rear container 80 and the upper container 72 can be suppressed.

  In the present embodiment, since the gas permeable sheet 79 is provided facing the inflow space S into which the humidified cold air generated by the refrigerated cooler 30 flows, the water vapor particles contained in the humidified cold air are contained in the upper container 72. It becomes easy to be supplied to.

  In the present embodiment, since the exhaust pump 63 that exhausts the air in the case 61 of the oxygen separation module 60 is provided in the machine chamber 38 outside the cabinet 2, it is possible to suppress a decrease in the internal volume, and the exhaust pump 63. The internal temperature does not rise due to the exhaust heat.

  In the present embodiment, an exhaust hose 64 that exhausts oxygen that has permeated through the oxygen separation membrane 62 to the machine chamber 38 is inserted into the insertion hole 2 b that communicates the vegetable chamber 12 provided on the back wall of the cabinet 2 and the machine chamber 38. Since it is drawn out to the machine room 38, the aesthetic appearance in the refrigerator compartment is not impaired, and the exhaust hose 64 does not get in the way when the vegetable compartment door 13 is opened, and the opening operation is not hindered.

  In the present embodiment, the oxygen separation membrane of the oxygen separation module 60 is formed between the inner wall of the vegetable compartment 12 and the storage container 70 and faces the circulation channel 90 through which the air humidified and cooled by the refrigeration cooler 30 circulates. Since 62 is provided, it becomes easy to supply the air of the vegetable compartment 12 to the vegetable compartment 12 side of the oxygen separation membrane 62, and oxygen can be discharged | emitted efficiently.

  In this embodiment, it communicates with the outside of the cabinet 2 through a vent hole 2c formed between the insertion hole 2a provided in the cabinet 2 and the drainage hose 28, and oxygen in the vegetable compartment 12 is separated from the oxygen separation membrane. Even if it passes through 62 and is discharged to the outside of the cabinet 2, the air outside the cabinet enters from the vent 2c and the pressure in the vegetable compartment 12 does not decrease. Therefore, in the refrigerator 1 of this embodiment, it is not necessary to provide the vegetable compartment 12 in an airtight and pressure-resistant structure, so that the effective internal volume is not reduced and the door 13 is not easily opened.

(Second Embodiment)
The second embodiment will be described based on FIG. 4 with a focus on differences from the first embodiment.

  In the first embodiment, an oxygen separation membrane 62 provided in the oxygen separation module 60 is provided so as to face the circulation channel 90, and the oxygen concentration outside the storage container 70 provided in the vegetable compartment 12 by the operation of the exhaust pump 63. In the present embodiment, the oxygen separation module 160 is connected to the connecting duct 165 by reducing the oxygen concentration in the upper container 72 and the lower rear container 80 via the gas permeable sheets 78 and 79. The oxygen in the upper and lower containers 72 and 80 is discharged through the oxygen separation membrane 162 to the outside, and the oxygen concentration in these containers 72 and 80 is discharged to the outside. Reduce.

  Specifically, the lower post-container 80 is not provided with a gas permeable sheet in the opening 80b provided in the rear wall 80a. For example, the gas permeable sheet is used to close the opening provided in the ceiling wall 80d. 178 is provided.

  In the oxygen separation module 160, a connecting duct 165 that extends forward toward the rear wall 80 a of the lower rear container 80 is connected to the front surface of the case 161 provided below the refrigeration cooler chamber 32. The inside of the connection duct 165 and the case 161 is partitioned in the front-rear direction by an oxygen separation membrane 162 provided in the case 161.

  In the closed state of the vegetable compartment door 13 in which the storage container 70 as shown in FIG. 4 is accommodated in the vegetable compartment 12, the front end portion of the connecting duct 165 has a sealing material 166 made of rubber-like elastic material such as rubber or silicone. Via the rear wall 80a of the lower rear container 80 so as to surround the opening 80b. As a result, the connecting duct 165 is connected to the lower rear container 80, and a continuous closed space is formed by the upper container 72, the lower rear container 80, and the connecting duct 165.

  In the present embodiment, humidified cold air generated by the refrigeration cooler 30 flows into the inflow space S via the duct 33 and the refrigeration chamber 10 by executing the refrigeration cooling operation.

  Part of the humidified cold air that has flowed into the inflow space S flows into the upper container 72 and the lower rear container 80 through the gas permeable sheets 79, 178, humidifies and cools the interior of the containers 72, 80, and most of the remainder. The humidified cold air stays in the inflow space S, and the humidified cold air that does not enter the inflow space S flows into the circulation flow path 90 to indirectly cool the inside of the containers 72 and 80 from the outside. Further, water vapor particles contained in the humidified cold air staying in the inflow space S enter the upper container 72 and the lower rear container 80 from the inflow space S through the gas permeable sheets 79 and 178 having moisture permeability. Humidify the inside.

  Further, in this embodiment, when the oxygen reduction operation is performed by operating the exhaust pump 63, the inside of the case 161 is separated from the space on the front side of the oxygen separation membrane 162, that is, from the upper container 72, the lower rear container 80, and the connection duct 165. Therefore, the oxygen in the upper and lower containers 72 and 80 passes through the oxygen separation membrane 162 and is exhausted to the outside of the cabinet 2 through the exhaust hose 64, so that the oxygen concentrations in the containers 72 and 80 are reduced. To do.

  In this embodiment as well, as in the first embodiment, the humidified cold air generated during the refrigeration cooling operation is generated even when the water vapor particles are discharged from the upper container 72 and the lower rear container 80 together with the oxygen by the exhaust pump 63 during the oxygen reduction operation. Since the water vapor particles contained in the water are supplied into the upper container 72 and the lower rear container 80 through the gas permeable sheets 78 and 79, the inside of the upper container 72 and the lower rear container 80 is humidified to suppress drying. Can do.

(Modification 1)
In the refrigerator 1 of 1st Embodiment and 2nd Embodiment mentioned above, although the exhaust pump 63 can be operated at arbitrary timings and the oxygen concentration of the vegetable compartment 12 or the refrigerator compartment 10 can be reduced, for example, a refrigerator refrigerator It is preferable to perform the oxygen reduction operation by operating the exhaust pump 63 during the refrigeration cooling operation in which the refrigeration fan 31 is operated while switching the switching valve 47 so that the refrigerant flows to 30.

  When the oxygen reduction operation is executed, oxygen in the vegetable compartment 12 permeates the oxygen separation membrane 62 and is discharged to the outside of the cabinet 2, and accordingly, air outside the cabinet enters the vegetable compartment 12 from the vent 2 c, By executing the oxygen reduction operation during the refrigeration cooling operation, it is possible to suppress an increase in the internal temperature of the vegetable room 12 or the refrigeration room 10.

  Note that the execution time of the oxygen reduction operation is preferably shorter than the execution time of the refrigeration cooling operation. This makes it easy for the air that has been humidified and cooled by the refrigeration cooler 30 to be supplied to the vegetable compartment 12 while suppressing the discharge of the water vapor particles to the outside by the exhaust pump 63, and the lower rear container 80 and the upper container 72. Drying can be suppressed.

(Modification 2)
In the refrigerator 1 according to the first embodiment described above, the rear separation channel formed between the rear wall of the cabinet 2 and the rear wall 80a of the lower rear container 80 with the oxygen separation membrane 62 provided in the oxygen separation module 60. For example, as shown in FIG. 5, a partition plate 95 is provided between the rear wall 80a of the lower rear container 80 and the oxygen separation membrane 62, and the air flowing through the rear flow path 94 is transferred to the oxygen separation membrane. It may be sucked into the suction port 43 of the return duct 44 through the vicinity of 62. By providing such a partition plate 95, oxygen can be more efficiently discharged from the vegetable compartment 12.

(Modification 3)
In the refrigerator 1 of 1st Embodiment and 2nd Embodiment mentioned above, although the exhaust pump 63 which exhausts the air in the case 61 of the oxygen separation module 60 was provided in the machine room 38 outside the cabinet 2, for example, the vegetable compartment 12 Or in a storage room such as the refrigerator compartment 10. By providing the exhaust pump 63 in the storage chamber in this manner, the operating temperature of the exhaust pump 63 can be lowered and the life of the exhaust pump 63 can be extended.

(Modification 4)
In the refrigerator 1 of the first embodiment and the second embodiment described above, the oxygen separation module 60 diffuses and moves oxygen in the vegetable compartment 12 to the outside of the cabinet 2 by the pressure difference between both sides of the oxygen separation membrane 62 and exhausts it outside the cabinet 2. As described above, the oxygen separation module 60 includes a hollow fiber membrane that separates compressed air into oxygen-enriched gas and nitrogen-enriched gas, compresses the air in the vegetable compartment 12, and supplies the compressed air to the inside of the hollow fiber membrane. The separated oxygen-enriched gas may be exhausted to the outside of the cabinet 2.

(Modification 5)
In the first embodiment and the second embodiment described above, the refrigerator 1 in which the storage room is humidified by the refrigeration cooler 30 and cooled to a predetermined temperature has been described. However, the humidification function of humidifying the storage room without cooling it is performed. It may be a storage such as a thermostatic chamber provided.

(Modification 6)
In the first embodiment and the second embodiment described above, although the gas permeable sheets 78 and 79 restrict the circulation of air (wind), the case where a certain amount of air is allowed to flow is described. 79 may be a sheet material that allows vapor particles and oxygen molecules to pass therethrough but does not allow air to pass.

  Even in the case of such a sheet material, the water vapor particles contained in the humidified cold air staying in the inflow space S enter the upper container 72 from the inflow space S through the gas permeable sheet 79 having moisture permeability, and the upper container 72 and the lower stage Since the inside of the rear container 80 is diffused, the inside of these containers can be humidified.

(Other embodiments)
As mentioned above, although embodiment of this invention was described, these embodiment was shown as an example and is not intending limiting the range of invention. These embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the invention described in the claims and equivalents thereof as well as included in the scope and gist of the invention.

DESCRIPTION OF SYMBOLS 1 ... Refrigerator, 2 ... Cabinet, 7 ... Partition wall, 7a ... Communication path, 10 ... Refrigeration room, 11 ... Refrigeration room door, 12 ... Vegetable room, 13 ... Vegetable room door, 30 ... Refrigeration cooler, 31 ... Refrigeration fan 32 ... Refrigerated cooler room, 33 ... Duct, 60 ... Oxygen separation module, 61 ... Case, 62 ... Oxygen separation membrane, 63 ... Exhaust pump, 64 ... Exhaust hose, 70 ... Storage container, 71 ... Lower container, 72 ... Upper container, 72a ... rear wall, 72b ... opening, 72c ... upper opening, 73 ..., 74 ... front / rear partition, 76 ... lid, 77 ... vent, 78 ... gas permeable sheet, 79 ... gas permeable sheet, 80 ... Lower rear container, 80a ... rear wall, 80b ... opening, 80c ... upper surface opening, 80d ... ceiling wall, 81 ... lower front container, 90 ... circulation channel, 91 ... upper channel, 92 ... front channel, 93 ... Lower channel, 94 ... Rear channel

Claims (10)

A cabinet having a storage room;
Humidifying means for humidifying the air in the storage chamber;
A closed container disposed in the storage chamber;
A gas permeable sheet constituting a part of a wall surface defining the closed container;
An oxygen separation membrane provided in the storage chamber;
A storage comprising: exhaust means for exhausting the air in the storage chamber that has passed through the oxygen separation membrane to the outside of the cabinet. A cabinet having a storage room;
Humidifying means for humidifying the air in the storage chamber;
A closed container disposed in the storage chamber;
A gas permeable sheet constituting a part of a wall surface defining the closed container;
An oxygen separation membrane provided in the storage chamber;
A storage comprising exhaust means for exhausting the air in the closed container that has passed through the oxygen separation membrane to the outside of the cabinet.   The said humidification means is a cooler cooled with the refrigerant | coolant supplied from the compressor, Comprising: The storage of Claim 1 or 2 which cools while humidifying the air of the said storage chamber. The storage room includes an inflow space into which air humidified by the humidifying means flows,
The storage according to any one of claims 1 to 3, wherein the gas permeable sheet is provided facing the inflow space. The storage chamber includes a flow path through which air humidified by the humidifying means flows between an inner wall of the storage chamber and the closed container.
The closed container includes a lower container, an upper container provided on the lower container, and a vent hole communicating the upper container and the lower container,
The gas permeable sheet includes a first gas permeable sheet provided facing the inflow space, and a second gas permeable sheet provided facing the flow path,
The storage according to claim 4, wherein the first gas permeable sheet is provided in the upper container, and the second gas permeable sheet is provided in the lower container.   The storage according to any one of claims 1 to 5, wherein the exhaust means is provided outside the cabinet. A case partitioned by the storage chamber and the oxygen separation membrane, and an exhaust hose connecting the inside of the case and the exhaust means,
The storage according to claim 6, wherein the exhaust hose is embedded in a back wall of the cabinet. The storage chamber includes a circulation channel through which air humidified by the humidifying means flows and returns the air to the humidifying means,
The storage according to any one of claims 1 to 7, wherein the oxygen separation membrane is provided facing the circulation flow path.   The storage according to any one of claims 1 to 8, wherein the exhaust means is covered with a soundproofing material. The storage according to claim 3, wherein the exhaust means is operated during a cooling operation for humidifying and cooling the air in the storage chamber.

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