WO2021223455A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2021223455A1
WO2021223455A1 PCT/CN2020/141732 CN2020141732W WO2021223455A1 WO 2021223455 A1 WO2021223455 A1 WO 2021223455A1 CN 2020141732 W CN2020141732 W CN 2020141732W WO 2021223455 A1 WO2021223455 A1 WO 2021223455A1
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WO
WIPO (PCT)
Prior art keywords
cavity
air
drawer
plate
drawer body
Prior art date
Application number
PCT/CN2020/141732
Other languages
English (en)
French (fr)
Inventor
朱雪峰
胡哲
宾丽敏
周伟洪
许锦潮
Original Assignee
海信容声(广东)冰箱有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 海信容声(广东)冰箱有限公司 filed Critical 海信容声(广东)冰箱有限公司
Priority to JP2022564354A priority Critical patent/JP7473682B2/ja
Priority to EP20934745.9A priority patent/EP4148349A4/en
Publication of WO2021223455A1 publication Critical patent/WO2021223455A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
    • F25D25/024—Slidable shelves
    • F25D25/025—Drawers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/042—Air treating means within refrigerated spaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments
    • F25D2317/041—Treating air flowing to refrigeration compartments by purification

Definitions

  • the present disclosure relates to the technical field of refrigeration equipment, and in particular to a refrigerator.
  • Refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a home appliance product that keeps food or other items in a constant low temperature and cold state. With the improvement of the quality of life, consumers have higher and higher requirements for the preservation of stored food, especially the color and taste of the food.
  • a refrigerator includes a box body, a drawer seat, a drawer body, at least one atmosphere-modified membrane component, and an air extraction device.
  • the box body has a low-temperature storage space
  • the drawer seat is arranged in the low-temperature storage space
  • one end of the drawer seat away from the rear side wall of the box body is open and is hollow
  • the drawer body has a storage space.
  • the object cavity is installed in the drawer seat; between the drawer body and the drawer seat are defined an installation cavity and a return cavity communicating with each other, the installation cavity and the return cavity are respectively provided in the drawer body Different sides, and respectively communicate with the storage cavity.
  • the air-conditioning membrane module is arranged in the installation cavity, and its permeability to oxygen is greater than that of nitrogen; the air extraction device is arranged in the low-temperature storage space and is configured to suck the air-conditioning
  • the air in the membrane module causes the air in the storage cavity to enter the installation cavity, passes through the air-regulated membrane module in the installation cavity for deoxygenation and filtration, and then flows back to the storage through the return cavity In the material cavity.
  • Fig. 1 is a schematic diagram of a refrigerator according to some embodiments.
  • Figure 2 is a cross-sectional view at A-A in Figure 1;
  • Figure 3 is an exploded view of a drawer assembly and a modified atmosphere membrane assembly in a refrigerator according to some embodiments
  • Figure 4 is a schematic diagram of a modified atmosphere membrane assembly in a refrigerator according to some embodiments.
  • Fig. 5 is a schematic diagram of an air-conditioning membrane assembly, a fixing plate, and a fan in a refrigerator according to some embodiments;
  • Figure 6 is a schematic diagram of a drawer body in a refrigerator according to some embodiments.
  • Fig. 7 is a schematic diagram of a drawer seat and a fixing plate in a refrigerator according to some embodiments.
  • first and second are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first” and “second” may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, “plurality” means two or more.
  • connection should be understood in a broad sense.
  • they can be fixed or detachable. Connect, or connect in one piece. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • connection should be understood in a broad sense. For example, they can be fixed or detachable. Connect, or connect in one piece. It can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components.
  • At least one of A, B, and C has the same meaning as “at least one of A, B, or C", and both include the following combinations of A, B, and C: only A, only B, only C, A and B The combination of A and C, the combination of B and C, and the combination of A, B and C.
  • a and/or B includes the following three combinations: A only, B only, and the combination of A and B.
  • the gas-regulated membrane module for controlling the oxygen concentration in the refrigerator is arranged on the top of the drawer seat to exchange gas in the inner space of the drawer body to achieve deoxygenation and return to nitrogen.
  • the air-regulated membrane module only acts on the top range of the inner space of the drawer body, and the air in the inner space of the drawer body cannot achieve effective flow, and the gas regulation efficiency is low.
  • some embodiments of the present disclosure provide a refrigerator 100, which includes a box body 1, a drawer base 2, a drawer body 3, at least one atmosphere-modified membrane module 7, and an air extraction device 8.
  • the box body 1 includes a left side wall 11, a right side wall 12, and a rear side wall 13.
  • the refrigerator 100 may further include a door body, which is installed on a side opposite to the rear side wall 13 of the cabinet 1.
  • the box 1 has a low-temperature storage space 14, and the low-temperature storage space 14 may be a refrigerating compartment 110 or a freezing compartment 120.
  • the drawer base 2 is disposed in the low-temperature storage space 14, and one end of the drawer base 2 away from the rear side wall 13 of the box body 1 is open and is hollow.
  • the drawer body 3 has a front side, a rear side, a left side, and a right side.
  • the front side refers to the side of the drawer body 3 away from the rear side wall 13 of the box body 1
  • the rear side is the side of the drawer body 3 corresponding to the rear side wall 13 of the box body 1
  • the left side is the side of the drawer body 3 corresponding to the box.
  • One side of the left side wall 11 of the body 1, and the right side is the side of the drawer body 3 corresponding to the right side wall 11 of the box body 1.
  • the drawer body 3 has a storage cavity 4 and is installed in the drawer base 2.
  • the drawer body 3 and the drawer base 2 define an installation cavity 5 and a return cavity 6 communicating with each other, and the installation cavity 5 and the return cavity 6 are respectively provided on different sides of the drawer body 3.
  • the installation cavity 5 and the return cavity 6 are respectively arranged on different sides of the rear side, the left side and the right side of the drawer body 3, and respectively communicate with the storage cavity 4.
  • the gas-modified membrane assembly 7 is arranged in the installation cavity 5, and its permeability to oxygen is greater than the permeability to nitrogen, that is, the gas-regulated membrane assembly 7 allows more oxygen in the air to pass through than nitrogen. , And can block at least part of the nitrogen in the air.
  • the air-regulated membrane module 7 allows more than 80% of the oxygen in the air to pass through, and blocks more than 80% of the nitrogen in the air; another example, the air-regulated membrane module 7 allows 100% of the oxygen in the air to pass through, and blocks the air. 100% nitrogen.
  • the air extraction device 8 is set in the low-temperature storage space 14 and is configured to suck air in the air-regulating membrane assembly 7 so that the air in the storage cavity 4 enters the installation cavity 5 and passes The gas-regulated membrane component 7 in the installation cavity 5 undergoes deoxygenation and filtration, and then flows back into the storage cavity 4 through the return cavity 6.
  • the air extraction device 8 is an air extraction pump.
  • the storage cavity 4 of the drawer body 3 is used to store food. Under the suction of the air extraction device 8, the air in the storage cavity 4 enters the installation cavity 5. The amount of oxygen in the air allowed to pass through is greater than that of nitrogen, and at least a part of the nitrogen in the air can be blocked. Therefore, the air extraction device 8 can extract the oxygen-rich and nitrogen-poor gas, so that the gas blocked in the installation cavity 5 is nitrogen-rich gas . Then, the nitrogen-enriched gas flows back to the storage chamber 4 through the return cavity 6 so that the air in the drawer seat 2 is deoxygenated and filtered by circulating flow.
  • the installation cavity 5 and the return cavity 6 are respectively arranged on different sides of the rear, left and right sides of the drawer body 3, the circulating flow of air covers multiple areas of the storage cavity 4, which greatly improves The gas regulation efficiency reduces the intensity of aerobic respiration of fruits and vegetables, so as to achieve the purpose of long-term preservation of fruits and vegetables.
  • FIG. 2 takes the reflux cavity 6 provided on the left and right sides of the drawer body 3 as an example.
  • the gas-modified membrane assembly 7 in the installation cavity 5 is arranged on the rear side of the drawer body 3, which can effectively reduce the vertical occupation space of the drawer seat 2 and make the overall structure more compact and reliable. It is beneficial to the quick maintenance and replacement of the gas-regulated membrane module 7.
  • the air extraction device 8 can be directly installed on the outer back of the installation cavity 5, that is, installed in the low-temperature storage space 14 between the installation cavity 5 and the rear side wall 13 of the box 1, without installing in the press chamber or the foam layer.
  • the top of the box 1 and other positions to avoid problems such as difficult heat dissipation, resonance with the compressor, excessive pipe length, and influence on refrigeration, etc., to achieve a compact installation between the air extraction device 8 and the gas-regulated membrane module 7, which has reduced pipe length, After the door is closed, the noise is effectively isolated, and it is easy to install and replace.
  • the reflux chamber 6 is provided on the left and right sides of the drawer body 3 to form two gas circulation flow circuits, and the gas regulation efficiency is high.
  • the reflux chamber 6 can also be separately arranged on the left or right side of the drawer body 3, and only one gas circulation flow circuit can realize gas regulation, saving internal space.
  • the drawer body 3 includes: a front panel 31, a rear side panel 34, a left side panel 32, and a right side panel 32.
  • a side plate with a return cavity 6 on one side is provided with a first vent at one end away from the installation cavity 5 35.
  • the end of the left side plate 32 away from the installation cavity 5 is provided with the first vent 35; if the side of the right side plate 32 is provided with the recirculation cavity 6, The end of the right side plate 32 away from the installation cavity 5 is provided with a first vent 35; A first vent 35 is provided at one end of the device away from the installation cavity 5.
  • the first vent 35 is configured to communicate with the storage cavity 4 and the return cavity 6. In this case, after the air is filtered and adjusted by the air-regulated membrane module 7, it flows from the installation cavity 5 to the return cavity 6 provided on the left and/or right side of the drawer seat 2, and finally returns from the return cavity 6 to the storage. Cavity 4 forms a gas circulating flow loop.
  • the gas flows from the front side to the back side of the storage cavity 4, covering the entire storage cavity 4, which serves to transfer heat, improves the uniformity of the temperature in the storage cavity 4, and enhances the cooling effect; at the same time, The gas regulation efficiency can be improved, and the fruits and vegetables stored in the storage cavity 4 are all located in a nitrogen-rich and oxygen-poor environment, thereby effectively inhibiting the aerobic respiration and metabolic reactions of the fruits and vegetables.
  • the first vent 35 can be provided in any shape.
  • the shape of the first vent 35 is a circle, an ellipse, a rectangle, a polygon, etc.
  • the embodiment of the present disclosure is not limited thereto; for another example, the first vent 35 is composed of a plurality of small holes distributed in an array.
  • Fig. 3 and Fig. 6 take the first air vent 35 as an example that is composed of a plurality of small holes distributed in an array, so as to reduce the entry of the items in the storage cavity 4 into the reflux cavity 6 under the condition of ensuring the ventilation. Risk of pollution.
  • the modified atmosphere membrane assembly 7 includes a mounting frame 71 and two modified atmosphere membranes 72.
  • the installation frame 71 is connected to the drawer base 2.
  • Two air-conditioning membranes 72 are respectively provided on both sides of the installation frame 71 along the direction L1 perpendicular to the plane defined by the installation frame, that is, the two air-conditioning membranes 72 are respectively provided on the front and rear sides of the installation frame 71, and two Each of the gas-regulating membranes 72 and the mounting frame 71 define an oxygen-enriched gas containing cavity 10. 2 and 3, the suction port 81 of the suction device 8 is in communication with the oxygen-enriched gas accommodating chamber 10.
  • the installation frame 71 is provided with an air outlet 711 leading to the oxygen-enriched gas containing chamber 10. 2 and 3, the suction port 81 of the suction device 8 is connected to the air outlet 711 through the pipe 9. Under the guidance of the suction port 81, the air in the installation cavity 5 passes through the air conditioning on both sides of the installation frame 71 Membrane 72, oxygen-enriched gas enters the oxygen-enriched gas accommodating chamber 10, and is discharged to the outside of the box body 1 through the exhaust port 82 of the air extraction device 8, so as to achieve the deoxygenation filtering effect, block the nitrogen-enriched gas and make it flow from the reflux chamber 6. Return to the storage cavity 4.
  • the orthographic projection of the outer contour of the mounting frame 71 on the rear side wall 13 of the box body 1 approximates geometric shapes such as rectangles, circles, triangles, etc.
  • the embodiments of the present disclosure are not limited thereto.
  • the mounting frame 71 is provided with a plurality of reinforcing ribs 73, and each reinforcing rib 73 supports the mounting frame 71, strengthens the structural strength of the mounting frame 71, and improves the oxygen-enriched gas.
  • the plurality of reinforcing ribs 73 includes a plurality of first reinforcing ribs 731 and a plurality of second reinforcing ribs 732.
  • a plurality of first reinforcing ribs 731 and a plurality of second reinforcing ribs 732 cross each other to divide the oxygen-enriched gas containing cavity 10 into a plurality of cavities 101; and the first reinforcing ribs between any two adjacent cavities 101 731 or the second reinforcing rib 732 is provided with a through hole 733.
  • each of the reinforcing ribs 73 supports the mounting frame 71 and the air-conditioning membranes 72 on the front and rear sides thereof, and further improves the stability of the oxygen-enriched gas accommodating chamber 10.
  • the gas-regulated membrane assembly 7 further includes a first support plate 74 and a second support plate 75.
  • the first support plate 74 is provided on one side of the two atmosphere control films 72 away from the mounting frame 71
  • the second support plate 75 is provided on the other of the two atmosphere control films 72 away from Install one side of frame 71.
  • the first support plate 74 and the second support plate 75 are each provided with a plurality of hollow areas 76.
  • gas can enter the oxygen-enriched gas accommodating chamber 10 from a plurality of hollow areas 76, and under the action of the first support plate 74 and the second support plate 75, the force generated by the gas flow can be reduced.
  • the deformation caused by the membrane 72 prolongs the service life of the atmosphere-adjustable membrane 72.
  • first support plate 74 and the second support plate 75 are buckled together. With this arrangement, the first support plate 74 and the second support plate 75 are easy to disassemble and assemble, and facilitate maintenance.
  • the first support plate 74 and the second support plate 75 are buckled together, so that the atmosphere-adjustable membrane 72 can be fixed to the mounting frame 71 at the same time.
  • the first supporting plate 74 is provided with a plurality of first elastic claws 741 and a plurality of first clamping grooves 742, and the plurality of first elastic claws 741 and a plurality of first clamping grooves are provided. 742 are staggered and distributed along the circumferential direction of the first supporting plate 74.
  • the second supporting plate 75 is provided with a plurality of second elastic claws 751 and a plurality of second clamping grooves 752, and the plurality of second elastic claws 751 and the plurality of second clamping grooves 752 are along the circumferential direction of the second supporting plate 75 Staggered distribution.
  • the plurality of first elastic claws 741 are buckled in a one-to-one correspondence with the plurality of second clamping grooves 752, and the plurality of second elastic claws 751 are buckled in a one-to-one correspondence with the plurality of first clamping grooves 742.
  • the refrigerator 100 includes a plurality of atmosphere-modified membrane components 7, and the orthographic projections of the plurality of atmosphere-modified membrane components 7 on the rear side wall 13 of the cabinet 1 do not overlap.
  • the multiple gas-regulated membrane modules 7 in the installation cavity 5 can perform deoxygenation and filtration at the same time, which improves the gas regulation efficiency.
  • the refrigerator 100 further includes a connecting pipe 20, the connecting pipe 20 is in communication with each atmosphere-modified membrane module 7, and the suction port 81 of the air suction device 8 is in communication with the connecting pipe 20.
  • the gas extraction device 8 can simultaneously discharge the oxygen-enriched gas in the multiple oxygen-enriched gas accommodating chambers 10, and the number of the gas extraction devices 8 can be reduced.
  • the air extraction device 8 can be a vacuum pump, and can be installed on the outer back of the air extraction chamber, and does not need to be installed in the compressor compartment, foam layer, top of the box 1, etc., which avoids heat dissipation difficulties, resonance with the compressor, Problems such as excessively long pipelines, affecting refrigeration, realize compact installation between the air extraction device 8 and the gas-regulated membrane module 7, which has the advantages of reducing the length of the pipeline, effectively isolating the noise after closing the door, and facilitating installation and replacement.
  • the suction port 81 of the suction device 8 communicates with a plurality of oxygen-enriched gas accommodating cavities 10 through a connecting pipe 20, so that when one of the gas-regulated membrane modules 7 has an oxygen-enriched gas accommodating cavity 10, it fails, for example, when When an oxygen-enriched gas containing chamber 10 leaks or the channel is blocked, the remaining gas-regulated membrane assembly 7 can continue to adjust the gas, which has better stability.
  • the number of gas-regulated membrane modules 7 is two, which are distributed in the horizontal direction in the installation cavity 5 left and right, and the two oxygen-enriched gas accommodating cavities 10 are connected by a connecting pipe 20, That is to say, the air outlets 711 on the two installation frames 71 are connected by the connecting pipe 20, and the air suction port 81 of the air suction device 8 is connected with the connecting pipe 20 to form two gas circulating flow circuits, each gas circulating The flow loop can work independently. When one of the gas circulation loops has parts failure, air leakage or channel blockage, the other gas circulation loop can continue to adjust the gas, which has better stability.
  • the refrigerator 100 further includes a fixing plate 21, and the fixing plate 21 is connected to the drawer base 2 and is arranged in the installation cavity 5.
  • the fixing plate 21 divides the mounting cavity 5 into a front cavity 51 and a rear cavity 52. 2 and 6, the fixing plate 21 and the rear side plate 34 of the drawer body 3 define a front cavity 51, and the fixing plate 21 and the rear side plate of the drawer seat 2 define a rear cavity 52.
  • the rear side panel of the drawer seat 2 refers to a panel of the drawer seat 2 close to the rear side wall 13 of the box body 1.
  • the rear chamber 52 is in communication with the return chamber 6, the gas-regulated membrane assembly 7 is provided in the rear chamber 52, and the fixed plate 21 is provided with a second vent 211 connecting the front chamber 51 and the rear chamber 52 .
  • the air-regulated membrane component 7 is arranged in the rear cavity 52 to avoid contamination caused by contact with the items in the storage cavity 4, for example, to avoid contact with vegetable leaves, soil, water droplets or plastic film in the storage cavity 4 Wait for contact to prolong the service life of the atmosphere-modified membrane 72.
  • the orthographic projection of the outer contour of the mounting frame 71 on the rear side wall 13 of the box body 1 is approximately rectangular, and the rear side of the fixing plate 21 corresponds to the four corners of each mounting frame 71
  • a fixing member 22 is provided.
  • the fixing member 22 includes a base 221, a first card board 222 and a second card board 223.
  • the four corners of the mounting frame 71 correspond to the first card board and the second card board of the fixing member 22.
  • the plate 223 abuts so that the mounting frame 71 is clamped between the four fixing members 22, and the base 221 is located between the mounting frame 71 and the fixing plate 21, and is configured to limit the distance between the mounting frame 71 and the fixing plate 21.
  • the mounting frame 71 and the fixing plate 21 are easy to disassemble and assemble, and are easy to replace.
  • the reflux chamber 6 is provided on the left and right sides of the drawer body 3, and the second vent 211 is provided in the middle of the fixed plate 21, and the left and right sides of the fixed plate 21 At least one third vent 212 is respectively provided on the right side.
  • the third vent 212 provided on the left side of the fixed plate 21 is configured to communicate with the rear cavity 52 and the return cavity 6 provided on the left side of the drawer body 3.
  • the third air vent 212 provided on the right side of the fixed plate 21 is configured to communicate with the rear cavity 52 and the return cavity 6 provided on the right side of the drawer body 3. This setting can speed up the gas circulation and increase the gas regulation efficiency.
  • the refrigerator 100 further includes an air guide ring 23, and the air guide ring 23 is provided between the fixing plate 21 and the rear side plate 34 of the drawer body 3.
  • the air guide ring 23 may be provided on the fixed plate 21 or the rear side plate 34 of the drawer body 3.
  • the air guide ring 23 is provided on the fixed plate for illustration. 3 and 6, the rear side plate 34 of the drawer body 3 is provided with a fourth vent 341, one end of the air guide ring 23 is connected to the second vent 211, and the other end is connected to the fourth vent 341.
  • the air guide ring 23 abuts against the rear side plate 34 of the drawer body 3 to form an air flow channel, which is convenient for the air in the storage cavity 4 to directly enter the rear cavity 52 through the air guide ring 23 Inside, the gas circulation is accelerated, and the gas regulation efficiency is higher.
  • the refrigerator 100 further includes an elastic pad.
  • the elastic cushion is arranged between the air guide ring and the rear side plate of the drawer body to play the role of shock absorption, noise reduction and protection.
  • the elastic pad is arranged between the air guide ring and the fixed plate to play the role of shock absorption, noise reduction and protection.
  • the elastic pad is a silicone pad.
  • the second vent 211, the third vent 212, and the fourth vent 341 may be provided in any shape.
  • the shapes of the second vent 211, the third vent 212, and the fourth vent 341 are circular, elliptical, rectangular, polygonal, etc., and the embodiment of the present disclosure is not limited thereto; for another example, the second vent 211, Both the third vent 212 and the fourth vent 341 are composed of a plurality of small holes distributed in an array.
  • Fig. 5 and Fig. 6 take the second vent 211 and the fourth vent 341 as an example that is composed of a plurality of small holes distributed in an array.
  • the rectangular notches formed on the side and the right side are taken as an example for illustration.
  • the refrigerator 100 further includes at least one fan 24 disposed in the rear cavity 52.
  • Each fan 24 includes an air inlet and an air outlet.
  • the air inlet is located on the axis of the fan 24, and the air inlet is communicated with the second air vent 211;
  • the fan 29 guides the air to flow to the air-regulating membrane assembly 7, speeds up the gas flow, and improves the efficiency of air-conditioning.
  • the number of fans 24 can be two, and the rear side of the fixing plate 21 is provided with a connecting column 30.
  • the fan 24 is installed on the rear side of the fixing plate 21 through the connecting post 30.
  • two fans 24 are distributed up and down in the vertical direction.
  • one fan 24 guides the air to the left side of the air-regulated membrane module 7, and the other fan 24 guides the air to the right side of the air-regulated membrane module 7, speeding up the gas flow, and guiding the air to the two gas circulation flow circuits respectively. Carry out the flow to speed up the circulation of the gas, and the gas regulation efficiency is higher.
  • each gas circulating flow circuit is: storage chamber 4 ⁇ fourth vent 341 ⁇ wind guide ring 23 ⁇ second vent 211 ⁇ fan 24 ⁇ air-regulated membrane module 7 ⁇ return chamber 6 ⁇ The first vent 35 ⁇ Storage chamber 4.
  • the working principle is: the fan 24 blows the air inside the storage chamber 4 toward the air-regulated membrane assembly 7; the air extraction device 8 sucks, so that the air passes through the air-regulated membrane 72; at this time, oxygen permeates more than nitrogen
  • the air-regulating membrane 72 gradually reduces the oxygen concentration in the installation cavity 5; finally, the nitrogen-rich gas in the installation cavity 5 returns to the storage cavity 4 through the return cavity 6 to form a low-oxygen fresh-keeping space and inhibit storage in the drawer body 3
  • the respiration and metabolic reaction of fruits and vegetables achieve the purpose of prolonging the preservation time.
  • the refrigerator 100 further includes a sealing ring 25, which is provided at an end of the drawer body 3 away from the rear side plate of the drawer seat 2, that is, the front panel 31 of the drawer body 3.
  • the sealing ring 25 cooperates with the opening of the end of the drawer seat 2 away from the rear side wall 13 of the box body 1 to achieve the sealing effect of the drawer seat 2.
  • the sealing ring 25 allows external air to enter the drawer base 2. That is to say, when the negative pressure value in the drawer seat 2 is less than the preset value, the inside of the drawer seat 2 is isolated from the outside air, and under the action of the air extraction device 8, the negative pressure value in the drawer seat 2 is continuously increased. Big.
  • the inside of the drawer seat 2 is in communication with the outside air, so that the user can open the drawer body 3 and prevent the fruits and vegetables from undergoing anaerobic breathing.
  • the preset value may be the negative pressure value corresponding to the first gas atmosphere
  • the first gas atmosphere is a gas atmosphere conducive to the preservation of fruits and vegetables
  • the first gas atmosphere is a gas environment that only guarantees the basic respiration of fruits and vegetables. In order to reduce the intensity of aerobic respiration of fruits and vegetables, at the same time prevent fruits and vegetables from undergoing anaerobic respiration.
  • the refrigerator 100 further includes a cooling air duct 26 provided at the top of the drawer base 2 to indirectly cool the storage cavity 4.
  • the top of the drawer base 2 is the end of the drawer base 2 close to the top of the box body 1.
  • the low temperature environment formed by the cooling air duct can reduce the risk of overheating of the air extraction device 8 and protect the air extraction device 8, which is beneficial to the efficient operation of the air extraction device 8 and prolongs the service life.
  • the top plate of the drawer base 2 (ie, the plate located on the top of the drawer base 2 in the drawer base 2) is provided with an air groove 261 on the surface away from the drawer body 3.
  • the refrigerator 100 further includes an air duct cover 262, which is embedded in the top plate of the drawer base 2 away from the surface of the drawer body 3, and defines a cooling air duct 26 with the air groove 261.
  • the air duct cover 262 can be embedded in the top plate of the drawer base 2 away from the surface of the drawer body 3, it will not affect the installation space in the vertical direction.
  • the air-regulated membrane assembly 7 is arranged on the rear side of the drawer body 2 without affecting the cooling air duct 26 provided on the top plate of the drawer base 2.
  • the drawer base 2 and the drawer body 3 may be disposed in the refrigerating compartment 110 of the refrigerator 100, and a cooling air outlet 111 is provided on the back of the refrigerating compartment 110 to be connected to the cooling air duct 26 correspondingly.
  • the cooling air duct 26 is used to cool the drawer base 2 indirectly, which can effectively prevent the fruits and vegetables from wilting and drying caused by direct cold wind, and retain the crispness and tenderness of the fruits and vegetables.
  • the oxygen concentration in the drawer body 3 is lower than that in the refrigerator compartment 110, which can inhibit the respiration and metabolism of fruits and vegetables, reduce the occurrence of oxidative browning, and prevent nutrient loss and food deterioration. So as to achieve the purpose of extending the preservation period of stored food.
  • the air groove 261 is a U-shaped groove provided on the top plate of the drawer base 2.
  • the air duct cover 262 is arranged on the U-shaped groove by hooks and fixing screws to form the cooling air duct 26. At this time, one end of the U-shaped groove enters the air, and the other end comes out. It is understandable that the U-shaped cooling air duct can increase the cooling area and ensure the cooling efficiency.
  • the drawer body 3 and the drawer base 2 are provided with a guiding structure 27 that cooperates and guides.
  • the guiding structures 27 are located on the left and right sides of the drawer body 3 to realize the drawer The pull function of the main body 3.
  • the guiding structure 27 may be arranged in the recirculation cavity 6.
  • a locking structure 28 is provided on the drawer body 3, and the locking structure 28 is configured to be able to buckle with the drawer base 2. Exemplarily, after the drawer body 3 is closed, the locking structure 28 is buckled on the drawer seat 2 to maintain a relatively sealed state.

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Abstract

一种冰箱（100），包括箱体（1）、抽屉座（2）、抽屉本体（3）、至少一个气调膜组件（7）、以及抽气装置（8），箱体（1）具有低温储藏空间（14），抽屉座（2）设于低温储藏空间（14）内，抽屉座（2）远离箱体（1）的后侧壁（13）的一端开口，且呈中空状；抽屉本体（3）具有储物腔（4），安装于抽屉座（2）内；抽屉本体（3）与抽屉座（2）之间限定有相互连通的安装腔（5）和回流腔（6），安装腔（5）和回流腔（6）分别设于抽屉本体（3）的不同侧，且分别与储物腔（4）连通；气调膜组件（7）设于安装腔（5）内，其对氧气的透过率大于对氮气的透过率；抽气装置（8）设于低温储藏空间（14）内，被配置为抽吸气调膜组件（7）内的空气，使储物腔（4）内的空气进入安装腔（5），经过安装腔（5）内的气调膜组件（7）进行除氧过滤，再通过回流腔（6）流回储物腔（4）中，使得抽屉座（2）内的空气通过循环流动的方式进行除氧过滤，大大提高了气体调节效率。

Description

冰箱
本申请要求于2020年05月08日提交的、申请号为202010385574.0的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及冷藏设备技术领域，尤其涉及一种冰箱。
背景技术
冰箱是保持恒定低温的一种制冷设备，也是一种使食物或其他物品保持恒定低温冷态的家电产品。随着生活品质的提高，消费者对储存食品的保鲜的要求也越来越高，特别是对食物的色泽、口感等的要求也越来越高。
研究表明，动植物的呼吸作用、耗氧微生物的生长繁殖、氧化作用等都与氧气浓度有着密切的关系。随着氧气浓度的下降，植物的呼吸作用、新陈代谢反应减弱，甚至进入到休眠状态；一些害虫、微生物的生命活动被抑制，生长繁殖减弱甚至停止。氧化作用的减弱，能有效减少果蔬营养物质的消耗，延缓果实的成熟和老化，减少害虫和微生物的生长繁殖，抑制病虫害、腐烂的发生，以及降低一些营养成分的氧化变质、果实氧化变色等，有效延长果蔬的保鲜期。
果蔬采摘以后放入冰箱存放期间，仍然进行着呼吸作用、新陈代谢等生命活动，通过对冰箱内温度、氧气浓度等条件的控制，可抑制果蔬呼吸作用、延缓其新陈代谢过程，从而更好地保持果蔬新鲜度和商品性，延长果蔬贮藏期和保鲜期。
公开内容
提供一种冰箱。所述冰箱包括箱体、抽屉座、抽屉本体、至少一个气调膜组件、以及抽气装置。所述箱体具有低温储藏空间，所述抽屉座设于所述低温储藏空间内，所述抽屉座远离所述箱体的后侧壁的一端开口，且呈中空状；所述抽屉本体具有储物腔，安装于所述抽屉座内；所述抽屉本体与所述抽屉座之间限定有相互连通的安装腔和回流腔，所述安装腔和所述回流腔分别设于所述抽屉本体的不同侧，且分别与所述储物腔连通。气调膜组件设于所述安装腔内，其对氧气的透过率大于对氮气的透过率；所述抽气装置设于所述低温储藏空间内，被配置为抽吸所述气调膜组件内的空气，使所述储物腔内的空气进入所述安装腔，经过所述安装腔内的所述气调膜组件进行除氧过滤，再通过所述回流腔流回所述储物腔中。
附图说明
为了更清楚地说明本公开中的技术方案，下面将对本公开一些实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例的附图，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图。此外，以下描述中的附图可以视作示意图，并非对本公开实施例所涉及的产品的实际尺寸、方法的实际流程、信号的实际时序等的限制。
图1为根据一些实施例的冰箱的示意图；
图2为图1中A-A处的剖视图；
图3为根据一些实施例的冰箱中抽屉组件和气调膜组件的爆炸图；
图4为根据一些实施例的冰箱中气调膜组件的示意图；
图5为根据一些实施例的冰箱中气调膜组件、固定板和风扇的示意图；
图6为根据一些实施例的冰箱中抽屉本体的示意图；
图7为根据一些实施例的冰箱中抽屉座与固定板的示意图。
具体实施方式
下面将结合附图，对本公开一些实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开所提供的实施例，本领域普通技术人员所获得的所有其他实施例，都属于本公开保护的范围。
除非上下文另有要求，否则，在整个说明书和权利要求书中，术语“包括(comprise)”及其其他形式例如第三人称单数形式“包括(comprises)”和现在分词形式“包括(comprising)”被解释为开放、包含的意思，即为“包含，但不限于”。在说明书的描述中，术语“一个实施例(one embodiment)”、“一些实施例(some embodiments)”、“示例性实施例(exemplary embodiments)”、“示例(example)”、“特定示例(specific example)”或“一些示例(some examples)”等旨在表明与该实施例或示例相关的特定特征、结构、材料或特性包括在本公开的至少一个实施例或示例中。上述术语的示意性表示不一定是指同一实施例或示例。此外，所述的特定特征、结构、材料或特点可以以任何适当方式包括在任何一个或多个实施例或示例中。
以下，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个该特征。在本公开实施例的描述中，除非另有说明，“多个”的含义是两个或两个以上。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本公开中的具体含义。
在本公开的描述中，需要理解的是，术语“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。
“A、B和C中的至少一个”与“A、B或C中的至少一个”具有相同含义，均包括以下A、B和C的组合：仅A，仅B，仅C，A和B的组合，A和C的组合，B和C的组合，及A、B和C的组合。
“A和/或B”，包括以下三种组合：仅A，仅B，及A和B的组合。
本文中“被配置为”的使用意味着开放和包容性的语言，其不排除适用于或被配置为执行额外任务或步骤的设备。
另外，“基于”的使用意味着开放和包容性，因为“基于”一个或多个所述条件或值的过程、步骤、计算或其他动作在实践中可以基于额外条件或超出所述的值。
如本文所使用的那样，“约”、“大致”或“近似”包括所阐述的值以及处于特定值的可接受偏差范围内的平均值，其中所述可接受偏差范围如由本领域普通技术人员考虑到正在讨论的测量以及与特定量的测量相关的误差(即，测量系统的局限性)所确定。
在一些相关技术中，冰箱中控制氧气浓度的气调膜组件设置在抽屉座的顶部，以对抽屉本体的内部空间进行气体交换实现除氧回氮。但是，气调膜组件只作用于抽屉本体的内部空间的顶部范围，抽屉本体的内部空间的空气无法实现有效流动，气体调节效率低。
如图1和图2所示，本公开一些实施例提供了一种冰箱100，包括箱体1、抽屉座2、抽屉本体3、至少一个气调膜组件7、以及抽气装置8。
参阅图1，箱体1包括左侧壁11、右侧壁12、以及后侧壁13。其中，冰箱100还可包括门体，门体安装于与箱体1的后侧壁13相对的一侧。箱体1具有低温储藏空间14，该低温储藏空间14可以为冷藏室110，也可以为冷冻室120。
请再次参阅图1，抽屉座2设于低温储藏空间14内，抽屉座2远离箱体1的后侧壁13的一端开口且呈中空状。
参阅图1，抽屉本体3具有前侧、后侧、左侧、以及右侧。此处，前侧是指抽屉本体3远离箱体1的后侧壁13的一侧，后侧是抽屉本体3对应箱体1的后侧壁13的一侧，左侧是抽屉本体3对应箱体1的左侧壁11的一侧，右侧是抽屉本体3对应箱体1的右侧壁11的一侧。其中，参阅图2，抽屉本体3具有储物腔4，且安装于抽屉座2内。抽屉本体3与抽屉座2之间限定有相互连通的安装腔5和回流腔6，安装腔5和回流腔6分别设于抽屉本体3的不同侧。示例性地，安装腔5和回流腔6分别设置于抽屉本体3的后侧、左侧和右侧中的不同侧，且分别与储物腔4连通。
参阅图2，气调膜组件7设于安装腔5内，其对氧气的透过率大于对氮气的透过率，即气调膜组件7允许空气中的氧气通过的量大于氮气通过的量，并可阻隔空气中的至少一部分氮气。例如，气调膜组件7允许空气中的80％以上的氧气通过，阻隔空气中的80％以上的氮气；又如，气调膜组件7允许空气中的100％的氧气通过，阻隔空气中的100％的氮气。
请再次参阅图1和图2，抽气装置8设于低温储藏空间14内，且被配置为抽吸气调膜组件7内的空气，使储物腔4内的空气进入安装腔5，经过安装腔5内的气调膜组件7进行除氧过滤，再通过回流腔6流回储物腔4中。可选的，抽气装置8为抽气泵。
基于上述技术特征的冰箱100，抽屉本体3的储物腔4用于储存食品，在抽气装置8的抽吸下，储物腔4内的空气进入安装腔5中，由于气调膜组件7允许空气中的氧气通过的量大于氮气，并可阻隔空气中的至少一部分氮气，因此，抽气装置8能够将富氧贫氮的气体抽出，使得阻隔在安装腔5内的气体为富氮气体。然后，富氮气体再通过回流腔6流回储物腔4，使得抽屉座2内的空气通过循环流动的方式进行除氧过滤。此时，由于安装腔5和回流腔6分别设置于抽屉本体3的后侧、左侧和右侧中的不同侧，故空气的循环流动覆盖了储物腔4的多处区域，大大提高了气体调节效率，降低果蔬有氧呼吸的强度，从而达到果蔬长期保鲜的目的。
在一些实施例中，如图1和图2所示，安装腔5设于抽屉本体3的靠近箱体1的后侧壁13的一侧，回流腔6设于抽屉本体3的左侧和/或右侧，附图2以回流腔6设于抽屉本体3的左侧和右侧作为示例。在这种情况下，安装腔5内的气调膜组件7设于抽屉本体3的后侧，可以有效减少抽屉座2的在竖直方向上的占用空间，使得整体结构更加紧凑可靠，并有利于气调膜组件7的 快速维护以及更换。
此外，抽气装置8可以直接安装在安装腔5的外侧背部，即安装在安装腔5与箱体1的后侧壁13之间的低温储藏空间14，无需安装在压机仓、发泡层、箱体1顶部等位置，避免出现散热困难、与压缩机共振、管路过长、影响制冷等问题，实现抽气装置8和气调膜组件7之间的紧凑安装，具有减小管路长度、关门后噪音有效的隔离、便于安装更换等优点。
在一些实施例中，如图2所示，回流腔6设置在抽屉本体3的左侧和右侧，以形成两条气体循环流动回路，气体调节效率高。在另一些实施例中，回流腔6也可以单独设置在抽屉本体3的左侧或右侧，仅由一条气体循环流动回路实现气体调节，节省内部空间。
在一些实施例中，如图6所示，抽屉本体3包括：前面板31、后侧板34、左侧板32、以及右侧板32。其中，参阅图2、图3和图6，在抽屉本体3的左侧板32和右侧板32中，一侧设有回流腔6的侧板远离安装腔5的一端设有第一通气口35。即，若左侧板32的一侧设有回流腔6，则左侧板32的远离安装腔5的一端设有第一通气口35；若右侧板32的一侧设有回流腔6，则右侧板32的远离安装腔5的一端设有第一通气口35；若左侧板32和右侧板32的一侧均设有回流腔6，则左侧板32和右侧板32的远离安装腔5的一端均设有第一通气口35。
第一通气口35被配置为连通储物腔4与回流腔6。在这种情况下，当空气经过气调膜组件7的过滤调节后，从安装腔5流向设于抽屉座2左侧和/或右侧的回流腔6，最后从回流腔6回流至储物腔4，形成气体循环流动回路。此时，气体流动是从储物腔4的前侧流向后侧，覆盖了整个储物腔4，起到传递热量的作用，改善储物腔4内温度的均匀性，提升制冷效果；同时，可以提高气体调节效率，并使得存放在储物腔4内的果蔬均位于富氮贫氧气体环境下，从而有效的抑制果蔬的有氧呼吸作用和新陈代谢反应。
此处，第一通气口35可以设置为任意形状。例如，第一通气口35的形状为圆形、椭圆形、矩形、多边形等，本公开实施例不限于此；又例如，第一通气口35由多个阵列分布的小孔构成。附图3和附图6中以第一通气口35由多个阵列分布的小孔构成为例进行示意，以在保证通气量的情况下，降低储物腔4内的物品等进入回流腔6造成污染的风险。
在一些实施例中，如图4所示，气调膜组件7包括安装框71和两个气调膜72。其中，参阅图2和图4，安装框71与抽屉座2连接。两个气调膜72分别设于安装框71沿垂直于安装框所限定的平面的方向L1的两侧，即两个 气调膜72分别设于安装框71的前侧与后侧，且两个气调膜72与安装框71限定成富氧气体容纳腔10。参阅图2和图3，抽气装置8的吸气口81与富氧气体容纳腔10连通。
示例性的，如图4所示，安装框71设有通向富氧气体容纳腔10的出气口711。参阅图2和图3，抽气装置8的吸气口81通过管道9与出气口711连接，在吸气口81的引导下，安装腔5内的空气透过安装框71两侧的气调膜72，富氧气体进入富氧气体容纳腔10，通过抽气装置8的排气口82排出至箱体1的外部，实现除氧过滤效果，阻隔富氮气体并使其从回流腔6流回储物腔4内。
可选的，安装框71的外轮廓在箱体1的后侧壁13上的正投影近似矩形、圆形、三角形等几何形状，本公开实施例不限于此。
在一些实施例中，如图4所示，安装框71内设有多条加强筋73，各加强筋73对安装框71起到支撑作用，加强安装框71的结构强度，提高了富氧气体容纳腔10的稳定性。
在此基础上，请再次参阅图4，多条加强筋73包括多个第一加强筋731和多个第二加强筋732。多个第一加强筋731与多个第二加强筋732相互交叉，将富氧气体容纳腔10分隔成多个空腔101；且任意相邻的两个空腔101之间的第一加强筋731或第二加强筋732上设有通孔733。这样的话，各加强筋73对安装框71以及其前后两侧的气调膜72均起到支撑作用，进一步的提高了富氧气体容纳腔10的稳定性。
在一些实施例中，如图4所示，气调膜组件7还包括第一支撑板74和第二支撑板75。第一支撑板74设于两个气调膜72中的一个气调膜72远离安装框71的一侧，第二支撑板75设于两个气调膜72中的另一个气调膜72远离安装框71的一侧。其中，第一支撑板74和第二支撑板75上均设有多个镂空区76。在这种情况下，气体可以从多个镂空区76处进入富氧气体容纳腔10，且在第一支撑板74和第二支撑板75的作用下，可以降低气体流动产生的力对气调膜72造成的形变量，延长气调膜72的使用寿命。
应理解，第一支撑板74和第二支撑板75的固定方式并不唯一。在一些实施例中，参阅图4，第一支撑板74和第二支撑板75扣接。如此设置，第一支撑板74和第二支撑板75的拆装方便，便于维护。
此外，第一支撑板74和第二支撑板75扣接，可以同时将气调膜72固定在安装框71上。示例性的，如图4所示，第一支撑板74上设有多个第一弹性卡爪741和多个第一卡槽742，多个第一弹性卡爪741与多个第一卡槽742 沿第一支撑板74的周向交错分布。第二支撑板75上设有多个第二弹性卡爪751和多个第二卡槽752，多个第二弹性卡爪751与多个第二卡槽752沿第二支撑板75的周向交错分布。其中，多个第一弹性卡爪741与多个第二卡槽752一一对应扣接，多个第二弹性卡爪751与多个第一卡槽742一一对应扣接。如此设置，第一支撑板74和第二支撑板75的连接可靠性高，且第一支撑板74和第二支撑板75的拆装方便。
在一些实施例中，如图2和图3所示，冰箱100包括多个气调膜组件7，多个气调膜组件7在箱体1的后侧壁13上的正投影不重合。这样的话，在安装腔5内的多个气调膜组件7可以同时进行除氧过滤，提升气体调节效率。
在此基础上，冰箱100还包括连接管20，连接管20与每个气调膜组件7连通，抽气装置8的吸气口81与连接管20连通。这样的话，抽气装置8可以将多个富氧气体容纳腔10内的富氧气体同时排出，可以减少抽气装置8的设置数量。该抽气装置8可以为真空泵，并可以安装在抽气腔体的外侧背部，无需安装在压机仓、发泡层、箱体1顶部等位置，避免了出现散热困难、与压缩机共振、管路过长、影响制冷等问题，实现了抽气装置8和气调膜组件7之间的紧凑安装，具有减小管路长度、关门后噪音有效的隔离、便于安装更换等优点。
此外，抽气装置8的吸气口81通过连接管20与多个富氧气体容纳腔10连通，这样当其中一个气调膜组件7具有的富氧气体容纳腔10失效时，例如，当其中一个富氧气体容纳腔10漏气或者通道堵塞等情况时，剩余的气调膜组件7还能继续对气体进行调节，具有更好的稳定性。
示例性的，如图2和图5所示，气调膜组件7的数量为两个，在安装腔5内沿水平方向左右分布，两个富氧气体容纳腔10通过连接管20相连通，也就是说，两个安装框71上的出气口711通过连接管20相连接，抽气装置8的吸气口81与连接管20相连通，以形成两条气体循环流动回路，每条气体循环流动回路可以实现单独工作，当其中一条气体循环流动回路发生零部件失效、漏气或者通道堵塞等情况时，另一条气体循环流动回路还能继续对气体进行调节，具有更好的稳定性。
在一些实施例中，如图2和图3所示，冰箱100还包括固定板21，固定板21与抽屉座2连接，且设于安装腔5内。此处，固定板21将安装腔5分成前腔51和后腔52。其中，参阅图2和图6，固定板21与抽屉本体3的后侧板34限定成前腔51，固定板21与抽屉座2的后侧板限定成后腔52。此处，抽屉座2的后侧板是指抽屉座2靠近箱体1的后侧壁13的板。此处，参阅图 2和图5，后腔52与回流腔6连通，气调膜组件7设于后腔52，固定板21上设有连通前腔51和后腔52的第二通气口211。在这种情况下，气调膜组件7设置于后腔52内，避免与储物腔4内物品接触造成污染，例如，避免与储物腔4内的菜叶、泥土、水珠或塑料膜等接触，延长气调膜72的使用寿命。
在一些实施例中，如图5所示，安装框71的外轮廓在箱体1的后侧壁13上的正投影近似矩形，固定板21的后侧面对应每个安装框71的四个角设有固定件22，固定件22包括底座221、第一卡板222和第二卡板223，安装框71的四个角的边均与其对应的固定件22的第一卡板和第二卡板223抵靠，以使安装框71卡在四个固定件22之间，且底座221位于安装框71与固定板21之间，被配置为限定安装框71与固定板21之间的距离。如此设置，安装框71与固定板21拆装方便，便于更换。
在一些实施例中，如图2和图5所示，回流腔6设于抽屉本体3的左侧和右侧，第二通气口211设于固定板21的中间，固定板21的左侧和右侧分别设有至少一个第三通气口212。其中，设于固定板21的左侧的第三通气口212，被配置为连通后腔52和设于抽屉本体3的左侧的回流腔6。设于固定板21的右侧的第三通气口212，被配置为连通后腔52和设于抽屉本体3的右侧的回流腔6。如此设置，可以加快气体循环流动，气体调节效率更高。
在一些实施中，如图3和图7所示，冰箱100还包括导风圈23，导风圈23设于固定板21与抽屉本体3的后侧板34之间。此处，导风圈23可设置在固定板21或抽屉本体3的后侧板34上，图3和图7中以导风圈23设置在固定板上进行示意。其中，参阅图3和图6，抽屉本体3的后侧板上34设有第四通气口341，导风圈23的一端与第二通气口211连通，另一端与第四通气口341连通。这样的话，参阅图2和图6，导风圈23与抽屉本体3的后侧板34相抵紧，形成一个气流的通道，便于储物腔4内的空气通过导风圈23直接进入后腔52内，加快气体的循环流动，气体调节效率更高。
在此基础上，冰箱100还包括弹性垫。其中，在导风圈设于固定板的情况下，弹性垫设于导风圈与抽屉本体的后侧板之间，以起到减震、降噪以及保护的作用。在导风圈设于抽屉本体的后侧板的情况下，弹性垫设于导风圈与固定板之间，以起到减震、降噪以及保护的作用。可选的，弹性垫为硅胶垫。
此处，第二通气口211、第三通气口212和第四通气口341可以设置为任意形状。例如，第二通气口211、第三通气口212和第四通气口341的形状为圆形、椭圆形、矩形、多边形等，本公开实施例不限于此；又例如，第二通 气口211、第三通气口212和第四通气口341均由多个阵列分布的小孔构成。附图5和附图6中以第二通气口211和第四通气口341均由多个阵列分布的小孔构成为例进行示意，图7中以第三通气口212为固定板21的左侧及右侧形成的矩形缺口为例进行示意。
在一些实施例中，如图2和图5所示，冰箱100还包括至少一个风扇24，设于后腔52。每个风扇24包括进风口和出风口，进风口位于风扇24的轴线上，进风口与第二通气口211连通；出风口位于风扇24的周侧，出风口朝向至少一个气调膜组件7。在这种情况下，风扇29引导空气流向气调膜组件7，加快气体流动速度，提高气体调节效率。
可选地，参阅图2和图5，在气调膜组件7在安装腔5内沿水平方向左右分布的情况下，风扇24的数量可以为两个，固定板21的后侧面设有连接柱30，风扇24通过连接柱30安装在固定板21的后侧面。此处，两个风扇24沿竖直方向上下分布。此时，一个风扇24引导空气流向左侧的气调膜组件7，另一个风扇24引导空气流向右侧的气调膜组件7，加快气体流动速度，并引导空气分别往两条气体循环流动回路进行流动，加快气体的循环流动，气体调节效率更高。
在此基础上，每条气体循环流动回路的流动路径为：储物腔4→第四通气口341→导风圈23→第二通气口211→风扇24→气调膜组件7→回流腔6→第一通气口35→储物腔4。工作原理为：风扇24将储物腔4内部的空气吹向气调膜组件7；抽气装置8进行抽吸，使得空气通过气调膜72；此时，氧气相对于氮气更多地透过气调膜72，从而逐渐降低安装腔5内的氧气浓度；最后安装腔5内的富氮气体通过回流腔6回到储物腔4内，形成低氧的保鲜空间，抑制抽屉本体3内存放果蔬的呼吸作用和新陈代谢反应，达到延长保鲜时间的目的。
在一些实施例中，如图6所示，冰箱100还包括密封圈25，密封圈25设于抽屉本体3远离抽屉座2的后侧板的一端，即抽屉本体3的前面板31，密封圈25与抽屉座2远离箱体1的后侧壁13的一端的开口相配合，实现抽屉座2的密封效果。
此外，当抽气装置8不断抽出富氧气体后，抽屉座2内会产生负压现象，当负压值大于或等于预设值时，密封圈25允许外部气体进入抽屉座2内。也就是说，当抽屉座2内的负压值小于预设值时，抽屉座2的内部与外界空气相互隔离，并且在抽气装置8的作用下，抽屉座2内的负压值不断增大。当抽屉座2内的负压大于或等于预设值时，抽屉座2的内部与外界空气连通， 以便于用户打开抽屉本体3，且防止果蔬进行无氧呼吸。
其中，预设值可以为第一气体氛围所对应的负压值，第一气体氛围为利于果蔬保鲜的气体氛围，例如，第一气体氛围为仅保证果蔬的基础呼吸作用所对应的气体环境，以降低果蔬有氧呼吸的强度，同时防止果蔬进行无氧呼吸。
在一些实施例中，如图3及图7所示，冰箱100还包括冷却风道26，冷却风道26设于抽屉座2的顶部，以对储物腔4进行间接冷却。此处，抽屉座2的顶部即抽屉座2的靠近箱体1顶部的一端。此外，冷却风道形成的低温环境可以降低抽气装置8过热的风险，对抽气装置8起到保护作用，有利于抽气装置8的高效运行，延长使用寿命。
示例性的，如图3及图7所示，抽屉座2的顶板(即抽屉座2中位于抽屉座2的顶部的板)远离抽屉本体3的表面设有风槽261。冰箱100还包括风道盖板262，风道盖板262内嵌于抽屉座2的顶板远离抽屉本体3的表面，并与风槽261限定成冷却风道26。在这种情况下，由于风道盖板262能内嵌于抽屉座2的顶板远离抽屉本体3的表面，因此，不会对竖直方向上的安装空间造成影响。
在此基础上，将气调膜组件7设置在抽屉本体2的后侧，不会影响抽屉座2的顶板设置冷却风道26。例如，参阅图1和图7，抽屉座2及抽屉本体3可以设置在冰箱100的冷藏室110，在冷藏室110的背部有制冷风口111与冷却风道26对应相连接。此时，由于抽屉座2及抽屉本体3之间的密封性高，采用冷却风道26对抽屉座2内间接冷却进行降温，能够有效防止冷风直吹导致的果蔬枯萎风干，保留果蔬的脆嫩口感和质地，抽屉本体3内的氧气浓度比冷藏室110内的氧气浓度低，能够抑制果蔬的呼吸作用和新陈代谢、减少氧化褐变的发生，防止营养流失和食品变质。从而达到延长存放食品保鲜期的目的。
可选地，参阅图3和图7，风槽261为设置在抽屉座2的顶板上的U型槽。风道盖板262通过卡勾和固定螺钉设置在U型槽上以形成冷却风道26。此时，U型槽的一端进风，另一端出风。可以理解的是，U字型的冷却风道可增大降温面积，保证冷却降温效率。
在一些实施例中，如图2、图3和图6所示，抽屉本体3与抽屉座2之间设有配合导向的导向结构27，导向结构27位于抽屉本体3的左右两侧，实现抽屉本体3的抽拉功能。其中，导向结构27可以设置在回流腔6内。
在一些实施例中，抽屉本体3上设有锁紧结构28，锁紧结构28被配置为 能够与抽屉座2扣接。示例性的，在抽屉本体3关闭后，锁紧结构28扣接在抽屉座2上，以保持相对密封的状态。
以上所述，仅为本公开的具体实施方式，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开揭露的技术范围内，想到变化或替换，都应涵盖在本公开的保护范围之内。因此，本公开的保护范围应以所述权利要求的保护范围为准。

Claims (19)

  1. 一种冰箱，包括：
    箱体，具有低温储藏空间；
    抽屉座，设于所述低温储藏空间内，所述抽屉座远离所述箱体的后侧壁的一端开口，且呈中空状；
    抽屉本体，具有储物腔，安装于所述抽屉座内；所述抽屉本体与所述抽屉座之间限定有相互连通的安装腔和回流腔，所述安装腔和所述回流腔分别设于所述抽屉本体的不同侧，且分别与所述储物腔连通；
    至少一个气调膜组件，设于所述安装腔内，其对氧气的透过率大于对氮气的透过率；及
    抽气装置，设于所述低温储藏空间内，被配置为抽吸所述气调膜组件内的空气，使所述储物腔内的空气进入所述安装腔，经过所述安装腔内的所述气调膜组件进行除氧过滤，再通过所述回流腔流回所述储物腔中。
  2. 根据权利要求1所述的冰箱，其中，所述安装腔设于所述抽屉本体的靠近所述箱体的后侧壁的一侧，所述回流腔设于所述抽屉本体的左侧和/或右侧。
  3. 根据权利要求2所述的冰箱，其中，所述抽屉本体的左侧板和右侧板中，一侧设有所述回流腔的侧板远离所述安装腔的一端设有第一通气口，所述第一通气口被配置为连通所述储物腔与所述回流腔。
  4. 根据权利要求1～3任一项所述的冰箱，其中，所述气调膜组件包括：
    安装框，与所述抽屉座相连；及
    两个气调膜，分别设于所述安装框沿垂直于所述安装框所限定的平面的方向的两侧，所述两个气调膜与所述安装框之间限定成富氧气体容纳腔，所述抽气装置的吸气口与所述富氧气体容纳腔连通。
  5. 根据权利要求4所述的冰箱，其中，所述安装框内设有多条加强筋。
  6. 根据权利要求5所述的冰箱，其中，所述多条加强筋包括多个第一加强筋和多个第二加强筋；
    所述多个第一加强筋和所述多个第二加强筋相互交叉，将所述富氧气体容纳腔分隔成多个空腔；且任意相邻的两个空腔之间的第一加强筋或第二加强筋上设有通孔。
  7. 根据权利要求4～6中任一项所述的冰箱，其中，所述气调膜组件还包括：
    第一支撑板，设于所述两个气调膜中的一个气调膜远离所述安装框的一 侧；及
    第二支撑板，设于所述两个气调膜中的另一个气调膜远离所述安装框的一侧；
    其中，所述第一支撑板和所述第二支撑板上均设有多个镂空区。
  8. 根据权利要求7所述的冰箱，其中，所述第一支撑板和所述第二支撑板扣接。
  9. 根据权利要求8所述的冰箱，其中，所述第一支撑板上设有多个第一弹性卡爪和多个第一卡槽，所述多个第一弹性卡爪与所述多个第一卡槽沿所述第一支撑板的周向交错分布；
    所述第二支撑板上设有多个第二弹性卡爪和多个第二卡槽，所述多个第二弹性卡爪与所述多个第二卡槽沿所述第二支撑板的周向交错分布；
    其中，所述多个第一弹性卡爪与所述多个第二卡槽一一对应扣接，所述多个第二弹性卡爪与所述多个第一卡槽一一对应扣接。
  10. 根据权利要求1～9中任一项所述的冰箱，其中，所述冰箱包括多个所述气调膜组件，多个所述气调膜组件在所述箱体的后侧壁上的正投影不重合。
  11. 根据权利要求10所述的冰箱，还包括：连接管，与每个所述气调膜组件连通，所述抽气装置的吸气口与所述连接管连通。
  12. 根据权利要求1～11中任一项所述的冰箱，还包括：
    固定板，与所述抽屉座相连接，且设于所述安装腔内；
    所述固定板将所述安装腔分隔成前腔及后腔；其中，所述固定板与所述抽屉本体的后侧板限定成所述前腔，所述固定板与所述抽屉座的后侧板限定成所述后腔；
    所述后腔与所述回流腔连通，所述气调膜组件设于所述后腔，所述固定板上设有连通所述前腔和所述后腔的第二通气口。
  13. 根据权利要求12所述的冰箱，其中，所述回流腔设于所述抽屉本体的左侧和右侧，所述第二通气口设于所述固定板的中间；
    所述固定板的左侧和右侧分别设有至少一个第三通气口；
    其中，设于所述固定板的左侧的第三通气口，被配置为连通所述后腔和设于所述抽屉本体的左侧的所述回流腔；
    设于所述固定板的右侧的第三通气口，被配置为连通所述后腔和设于所述抽屉本体的右侧的所述回流腔。
  14. 根据权利要求12或13所述的冰箱，其中，所述抽屉本体的后侧板上设有第四通气口；
    所述冰箱还包括：导风圈，设于所述固定板与所述抽屉本体的后侧板之间；所述导风圈的一端与所述第二通气口连通，另一端与所述第四通气口连通。
  15. 根据权利要求14所述的冰箱，还包括：弹性垫，
    在所述导风圈设于所述固定板的情况下，所述弹性垫设于所述导风圈与所述抽屉本体的后侧板之间；
    在所述导风圈设于所述抽屉本体的后侧板的情况下，所述弹性垫设于所述导风圈与所述固定板之间。
  16. 根据权利要求14或15所述的冰箱，还包括：
    至少一个风扇，设于所述后腔；
    每个风扇包括进风口和出风口；所述进风口位于所述风扇的轴线上，所述进风口与所述第二通气口连通；所述出风口位于所述风扇的周侧，所述出风口朝向至少一个所述气调膜组件。
  17. 根据权利要求1～16中任一项所述的冰箱，还包括：密封圈，设于所述抽屉本体远离所述抽屉座的后侧板的一端；所述密封圈与所述抽屉座远离所述箱体的后侧壁的一端的开口相配合。
  18. 根据权利要求1～17中任一项所述的冰箱，还包括：冷却风道，设于所述抽屉座的顶部。
  19. 根据权利要求18所述的冰箱，其中，所述抽屉座的顶板远离所述抽屉本体的表面设有风槽；
    所述冰箱还包括：风道盖板，所述风道盖板内嵌于所述抽屉座的顶板远离所述抽屉本体的表面，并与所述风槽限定成所述冷却风道。
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