WO2018103722A1

WO2018103722A1 - Refrigerating and freezing device

Info

Publication number: WO2018103722A1
Application number: PCT/CN2017/115127
Authority: WO
Inventors: 姜波; 王磊; 刘浩泉; 辛若武
Original assignee: 青岛海尔股份有限公司
Priority date: 2016-12-09
Filing date: 2017-12-08
Publication date: 2018-06-14
Also published as: CN107062746B; CN107062746A

Abstract

Provided is a refrigerating and freezing device, comprising: a chamber body (20); an air conditioning membrane assembly (30); an air pumping device (40), which is in communication with an oxygen-rich air collecting chamber of the air conditioning membrane assembly (30) for drawing and discharging the air that has permeated into the oxygen-rich air collecting chamber out of a storage container; and a filtering and purifying device (70), which is configured to filter at least part of the air which has flown into a surrounding space of the air conditioning membrane assembly (30) from an air conditioning freshness preservation space. The refrigerating and freezing device may prevent the air conditioning membrane assembly (30) from being contaminated by contaminants such as bacteria, thus extending the service life of an air conditioning membrane.

Description

Refrigerated freezer

The present application claims priority to Chinese Patent Application Serial No. No. No. No. No. No. No. No. No. No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No

Technical field

The invention relates to the technical field of refrigerator storage, and in particular to a refrigerating and freezing device.

Background technique

The refrigerator is a kind of refrigeration equipment that maintains a constant low temperature, and is also a civilian product that keeps food or other items at a constant low temperature and cold state. With the improvement of the quality of life, consumers are increasingly demanding the preservation of stored foods, especially the requirements for the color and taste of foods. Therefore, the stored food should also ensure that the color, taste, freshness, etc. of the food remain as constant as possible during storage. In order to better store food on the market, there is only one type of vacuum preservation. The vacuum preservation method that is often used is vacuum bag preservation and vacuum storage room preservation.

Vacuum bags are used for fresh-keeping, consumers need to carry out vacuuming operations every time they store food, which is troublesome and cannot be enjoyed by consumers.

The vacuum storage compartment is used for fresh-keeping. Because the box body is a rigid structure, it is required to maintain a vacuum state. The vacuum system is highly demanded, and the sealing performance of the refrigerator is very high. Each time an item is taken, a new one is poured in. More air, more energy consumption. Moreover, in a vacuum environment, it is difficult to receive cold food, which is particularly unfavorable for food storage. In addition, due to the vacuum environment, it takes a lot of effort for the user to open the refrigerator door every time, which causes inconvenience to the user. Although some refrigerators can be ventilated to the vacuum storage compartment through a vacuum system, this will cause the user to wait for a long time and have poor aging. The long vacuum time will also cause serious deformation of the refrigerator cabinet, that is, the existing refrigerator with vacuum structure can not complete the vacuum preservation well, and the strength of the box body is large, the requirements are high, and the cost is high. .

In addition, the inventors have found that due to the large size and high cost of the nitrogen-consuming equipment traditionally used for gas-conditioning preservation, the technology is basically limited to use in various large-scale professional storages (the storage capacity is generally at least 30 tons or more). ). It can be said that the appropriate gas regulation technology and corresponding equipment can economically reduce and quiet the air-conditioning system, making it suitable for home or individual users. It is a constant desire of technicians in the field of atmosphere preservation and preservation. A technical problem that can be successfully solved.

Summary of the invention

It is an object of the present invention to overcome at least one of the deficiencies of existing refrigerators and to provide a refrigerating and freezing apparatus which creatively proposes to discharge oxygen in the air in the atmosphere of the fresh air conditioning space to the space, thereby obtaining nitrogen-rich gas in the space. Oxygen depleted to promote the food atmosphere of the food preservation. The gas atmosphere reduces the oxygen content of the fruits and vegetables, reduces the aerobic respiration of fruits and vegetables, and ensures the basic respiration, preventing anaerobic respiration of fruits and vegetables, thereby achieving long-term preservation of fruits and vegetables. the goal of.

It is a further object of the present invention to protect the gas regulating membrane module as much as possible to increase the useful life of the gas regulating membrane module.

In order to achieve at least one of the above objects, the present invention provides a refrigerating and freezing apparatus comprising:

a box body, a storage space is defined in the box body, a storage container is arranged in the storage space, and a gas storage space is arranged in the storage container;

The gas regulating membrane module has at least one gas regulating membrane and an oxygen-rich gas collecting chamber, and the surrounding space is connected with the atmosphere fresh-keeping space, and the gas regulating membrane module is configured to be in the space airflow around the gas regulating membrane module The oxygen enters the oxygen-rich gas collecting chamber through the gas regulating membrane more than the nitrogen in the space airflow around the gas regulating membrane module;

The air suction device is connected to the oxygen-rich gas collecting chamber of the gas regulating membrane module via a pipeline, and the gas that has penetrated into the oxygen-rich gas collecting chamber is pumped out of the storage container;

The filtration purification device is mounted to the storage container and configured to filter at least a portion of the gas flowing from the modified atmosphere to the space surrounding the air conditioning membrane module.

Optionally, the storage container is a drawer assembly, comprising:

a drawer body having a forward opening and disposed in the storage space; and

A drawer body slidably mounted within the drawer body for operatively withdrawing and inserting the drawer body outwardly from the forward opening of the drawer body.

Optionally, a receiving cavity that communicates with the air conditioning space is disposed in the top wall of the drawer cylinder to accommodate the air conditioning film assembly.

Optionally, at least one first vent hole and at least one second vent hole spaced apart from the at least one first vent hole are defined in a wall surface between the accommodating cavity of the top wall of the drawer cylinder and the modified atmosphere. The refrigerating and freezing device further includes a fan disposed in the accommodating cavity to facilitate the gas in the conditioned space to sequentially pass through the at least one first vent hole, the accommodating cavity, and the at least one The second vent is returned to the atmosphere.

Optionally, the filter purification device comprises a first filter mesh installed at the at least one first venting opening and such that the first filter mesh covers at least one first venting opening.

Optionally, the filter purification device further includes a second filter mesh installed at the at least one second vent hole and such that the second filter mesh covers the at least one second vent hole.

Optionally, the first filter and the second filter are both molecular sieve filters and contain a precious metal catalyst.

Optionally, the refrigerating and freezing device further comprises a sterilizing device mounted on the top wall of the drawer cylinder and adjacent to the at least one first venting hole configured to sterilize and/or sterilize at least the gas in the conditioned storage space.

Optionally, the fan is a centrifugal fan disposed above the at least one first vent hole such that the rotation axis of the centrifugal fan is vertically downward, and the air inlet of the centrifugal fan faces the at least one first vent hole;

The gas regulating membrane module is of a flat type, and the air conditioning membrane module is disposed above the at least one second venting hole such that the air conditioning membrane module is parallel to the top wall of the drawer cylinder.

Optionally, the air conditioning membrane module further includes a support frame having first and second surfaces parallel to each other, and the support frame is formed with a first extension on the first surface, a second surface, and a through support The frame is configured to connect the plurality of airflow passages of the first surface and the second surface, and the plurality of airflow passages together form an oxygen-rich gas collecting chamber; the at least one air-conditioning membrane is two planar air-conditioning membranes, respectively laid on the first frame of the support frame On the surface and on the second surface.

The refrigerating and freezing device of the invention has a gas regulating membrane module and an air extracting device, and can form a gas atmosphere rich in nitrogen and oxygen in the atmosphere of the modified atmosphere to facilitate food preservation, and the gas atmosphere reduces the oxygen content in the storage space of the fruit and vegetable, Reduce the intensity of aerobic respiration of fruits and vegetables, while ensuring the basic respiration, preventing anaerobic respiration of fruits and vegetables, so as to achieve the purpose of long-term preservation of fruits and vegetables. In particular, the refrigerating and freezing device may further comprise a filtering and purifying device capable of filtering circulating air, filtering dust, oil, odorous substances, etc. in the air, and also decomposing oil, odor gas, etc., and preventing bacteria. Contaminants contaminate the gas-regulating membrane module and increase the life of the gas-regulating membrane. That is to say, the refrigerating and freezing device can purify the fresh air conditioning space and increase the life of the gas regulating film.

Further, the refrigerating and freezing apparatus of the present invention not only has a good fresh-keeping effect, but also has low rigidity and strength requirements for a storage container or the like, and has low requirements, and the cost is also low. Moreover, the refrigerating and freezing apparatus of the present invention well solves the above-mentioned technical problems that the skilled person in the field of modified atmosphere preservation has been eager to solve but has not been successfully solved. The refrigerating and freezing apparatus of the present invention is not only small in size but also low in noise, and is particularly suitable for home and personal use.

Further, the refrigerating and freezing apparatus of the present invention is preferably a domestic refrigerator, for example, a domestic compression type direct cooling refrigerator, a household compression type air-cooled refrigerator, a semiconductor refrigerating refrigerator, or the like.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention are described in detail below by way of example, and not limitation. The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

1 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

2 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 3 is a schematic exploded view of the structure shown in Figure 2;

4 is an exploded view of a gas regulating membrane module in a refrigerating and freezing apparatus according to an embodiment of the present invention;

Fig. 5 is a schematic structural view of another perspective of the structure shown in Fig. 1.

detailed description

1 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention, FIG. 2 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention; and FIG. 3 is a schematic view of the structure shown in FIG. Sexual decomposition map. As shown in FIG. 1 to FIG. 3, an embodiment of the present invention provides a refrigerating and freezing apparatus, which may include a tank 20, a main door body, a gas regulating membrane module 30, an air extracting device 40, and a refrigeration system.

A storage space 211 is defined in the casing 20. For example, the tank 20 can include a bladder 21 within which a storage space 211 is defined. The main door body can be composed of two opposite door bodies, and can be rotatably mounted to the box body 20, and configured to open or close the storage space 211 defined by the box body 20. Alternatively, the main door body can also be a door body. Further, a storage container is disposed in the storage space 211, and the storage container has a modified atmosphere. The atmosphere fresh-keeping space can be a closed space or an approximately closed space. Preferably, the storage container is a drawer assembly. The storage container may include a drawer body 22 and a drawer body 23. The drawer cylinder 22 may have a forward opening and is disposed in the storage space 211, and may be specifically disposed at a lower portion of the storage space 211. As can be appreciated by those skilled in the art, the drawer body 22 can also be disposed in the middle or upper portion of the storage space 211. The drawer body 23 is slidably disposed within the drawer body 22 to operatively withdraw and inwardly insert the drawer body 22 from the forward opening of the drawer body 22. The drawer body 23 can have a drawer end cover that can cooperate with the opening of the drawer cylinder 22 to seal the air conditioning space. In some alternative embodiments, the storage container can include a barrel and a small door configured to open or close the barrel.

The refrigeration system can be configured to provide refrigeration to the storage space. For example, the refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, an evaporator, and the like. The evaporator is configured to provide cooling directly or indirectly into the storage space 211. For example, when the refrigerating and freezing device is a domestic compression type direct cooling refrigerator, the evaporator may be disposed outside or inside the rear wall surface of the inner casing 21. When the refrigerating and freezing device is a domestic compression air-cooled refrigerator, the casing 20 further has an evaporator chamber, and the evaporator chamber communicates with the storage space 211 through the air passage system, and an evaporator is arranged in the evaporator chamber, and the outlet is provided with Fan to The storage space 211 is circulated and cooled. In some embodiments, the refrigeration system can also be a semiconductor refrigeration device.

The gas regulating membrane module 30 has at least one gas regulating membrane 31 and an oxygen-rich gas collecting chamber, and the surrounding space thereof communicates with the modified atmosphere. The gas-regulating membrane module 30 can be configured such that oxygen in the space airflow around the gas-regulating membrane module 30 passes through the gas-regulating membrane 31 more into the oxygen-rich gas collection chamber relative to the nitrogen in the space airflow around the gas-regulating membrane module 30. Specifically, the inner side surface of each of the air-conditioning membranes 31 faces the oxygen-rich gas collecting chamber to make the outer space of the air-conditioning membrane module 30 when the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the surrounding space of the air-conditioning membrane module 30. The oxygen in the air passes through at least one of the gas regulating membranes 31 into the oxygen-rich gas collecting chamber with respect to the nitrogen gas therein.

The aspirator 40 can be in communication with the oxygen-enriched gas collection chamber of the gas-regulating membrane assembly 30 via line 50 to pump gas that has passed through the oxygen-enriched gas collection chamber out of the storage vessel.

In this embodiment, the air extracting device 40 draws air outward, so that the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the surrounding space of the air-conditioning membrane module 30, and further, the space around the air-conditioning membrane module 30 can be made. Oxygen enters the oxygen-rich gas collection chamber. Since the air-conditioning space is connected to the space around the air-conditioning membrane module 30, the air in the air-conditioning space enters the space around the air-conditioning membrane module 30, so that oxygen in the air in the atmosphere can be made to enter the oxygen-rich gas. The chamber is collected to obtain a gas atmosphere rich in nitrogen and oxygen in the atmosphere of the modified atmosphere to facilitate food preservation.

The refrigerating and freezing device of the invention can form a gas atmosphere rich in nitrogen and oxygen in the atmosphere of the fresh air conditioning to promote food preservation, and the gas atmosphere reduces the oxygen content of the fruit and vegetable storage space, thereby reducing the aerobic respiration intensity of the fruits and vegetables, and ensuring the foundation. The respiration function prevents the fruits and vegetables from undergoing anaerobic respiration, thereby achieving the purpose of long-term preservation of fruits and vegetables. Moreover, the gas atmosphere also has a large amount of gas such as nitrogen gas, and does not reduce the cooling efficiency of articles in the atmosphere of the modified atmosphere, so that fruits and vegetables can be effectively stored. Moreover, the rigidity and strength of the storage container and the like are low, and the implementation requirements are low, and the cost is also low. The refrigerating and freezing device of the present invention well solves the above technical problems that the technicians in the field of modified atmosphere preservation have been eager to solve but have not been successfully solved. The refrigerating and freezing apparatus of the present invention is not only small in size but also low in noise, and is particularly suitable for home and personal use.

In particular, in this embodiment, the refrigerating and freezing apparatus may further include a filter purifying device 70 mounted to the storage container and configured to filter at least a portion of the gas flowing from the modified atmosphere to the space surrounding the air conditioning membrane module . The air conditioning space can be purified to further preserve the freshness, and at the same time, the pollutants such as bacteria can be prevented from entering the gas regulating membrane module 30 to contaminate the gas regulating membrane module 30, and the life of the gas regulating membrane 31 can be increased.

In some embodiments of the invention, as shown in FIGS. 2 and 3, the air conditioning membrane module 30 can be disposed on the barrel wall of the drawer body 22. The air conditioning membrane module 30 can be in the form of a flat plate and can be preferably and horizontally disposed on the top wall of the drawer body 22. Specifically, a receiving cavity is disposed in the top wall of the drawer cylinder 22 to accommodate the air conditioning membrane module 30. For example, at least one first vent hole 222 and a second vent hole 223 are formed in a wall surface between the accommodating chamber of the top wall of the drawer cylinder 22 and the atmosphere fresh-keeping space. The at least one first venting aperture 222 is spaced apart from the at least one second venting aperture 223 to respectively communicate the receiving cavity and the modified atmosphere at different locations. The first vent hole 222 and the second vent hole 223 are both small holes, and the number may be plural. In some alternative embodiments, the inside of the top wall of the drawer body 22 has a recessed groove. The air conditioning membrane module 30 is disposed in a recessed groove of the top wall of the drawer body 22.

In some embodiments of the present invention, in order to promote the flow of the atmosphere in the atmosphere and the gas in the accommodating chamber, the chilling and freezing device may further include a fan 60, and the fan 60 may be disposed in the accommodating chamber, and configured to promote the gas in the atmosphere The first vent hole 222 enters the accommodating cavity, and the gas in the accommodating cavity enters the conditioned space through the second vent hole 223. That is, the fan 60 can cause the gas in the modified atmosphere to pass through the at least one first vent 222, the accommodating chamber, and One less second vent 223 returns to the modified atmosphere.

In particular, as shown in FIG. 3, the filter purification device 70 includes a first filter screen 71 mounted to at least one first venting opening 222 and such that the first filter screen 71 covers at least one first venting opening 222. Preferably, the first filter screen 71 completely covers at least one first vent hole from above the at least one first vent hole 222. Further, in order to prevent the fan 60 from being stopped, the gas in the atmosphere of the modified atmosphere carries oil and the like through the at least one second vent 223 into the accommodating cavity of the top wall of the cylinder 22, and the filtering and purifying device 70 further includes The second filter 72 is mounted to the at least one second vent 223 and such that the second filter screen 72 covers at least one second vent 223 from the upper side of the at least one second vent 223. Further preferably, the first filter screen 71 and the second filter screen 72 are both molecular sieve filters and contain a precious metal catalyst in order to decompose oil, odor gas and the like.

In some embodiments of the invention, the refrigerated freezer further includes a sanitizing device 80 mountable to the top wall of the drawer body 22 and adjacent to the at least one first vent 222 for access as much as possible and preferentially The gas accommodating the chamber is sterilized and/or sterilized, thereby preventing the gas conditioned membrane module 30 from being contaminated, protecting the gas conditioned membrane module 30 and the gas regulating membrane 31 therein. Alternatively, the sterilization device 80 may include a photocatalyst network and a light emitting device (such as a blue light lamp); or, the sterilization device 80 may include an ultraviolet lamp and a lamp cover.

In some embodiments of the invention, the fan 60 is preferably a centrifugal fan disposed at the first venting opening 222 in the receiving chamber. That is, the centrifugal fan is located above the at least one first vent 222 with the axis of rotation vertically downward and the air inlet being directed to the first vent 222. The air outlet of the centrifugal fan can face the air conditioning membrane module 30. The air conditioning membrane module 30 is disposed above the at least one second venting opening 223 such that each of the air conditioning membranes of the air conditioning membrane module 30 is parallel to the top wall of the drawer cylinder 22. At least one first venting hole 222 is disposed at a front portion of the top wall, and at least one second venting hole 223 is disposed at a rear portion of the top wall. That is, the centrifugal fan is disposed at the front of the accommodating chamber, and the air conditioned membrane module 30 is disposed at the rear of the accommodating chamber. That is, at least one first vent hole 222 is disposed at a front portion of the top wall of the drawer cylinder 22; at least one second vent hole 223 is disposed at a rear of the at least one first vent hole 222. The sterilization device 80 may be disposed in front of the at least one first ventilation hole 222. Preferably, the light emitting device or the ultraviolet light may include a circuit board extending in the lateral direction and a plurality of light emitting elements disposed on the circuit board at intervals in the lateral direction.

In some embodiments of the invention, as shown in FIG. 4, the air conditioning membrane module 30 can be in the form of a flat plate, and the air conditioning membrane module 30 can further include a support frame 32. The gas regulating film 31 is preferably an oxygen-rich film, which may be two, mounted on both sides of the support frame 32 such that the two gas regulating films 31 and the support frame 32 together enclose an oxygen-rich gas collecting chamber. Further, the support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, the surface of the rib plate, and the surface of the flat plate. Grooves may be formed in the upper portion to form an air flow passage. The ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30. That is, the support frame 32 has first and second surfaces parallel to each other, and the support frame 32 is formed to extend on the first surface, extend on the second surface, and penetrate the support frame 32 to communicate with the first a plurality of gas flow channels of the surface and the second surface, the plurality of gas flow channels together form an oxygen-rich gas collecting chamber; at least one gas regulating film 31 is two planar gas regulating films respectively laid on the first surface of the support frame 32 and On the surface.

In some embodiments of the invention, the support frame 32 includes a venting aperture 33 in communication with the aforementioned at least one airflow passageway disposed on the rim to allow oxygen in the oxygen-rich gas collection chamber to be output. The air suction hole 33 is in communication with the air suction device 40. The air vent 33 may be disposed on the long edge of the frame or on the short edge of the frame to be determined according to the orientation of the air conditioning film assembly 30 or actual design requirements, for example, the implementation shown in FIGS. 2 and 3. In the example, the air vent 33 can be set in On the long edge of the border. The air-conditioning film 31 is first attached to the frame by the double-sided tape 34, and then sealed by the sealant 35.

In some embodiments, the support frame 32 can include a bezel, a plurality of first ribs, and a plurality of second ribs. The plurality of first ribs are longitudinally spaced apart inside the frame and extend in the lateral direction, and one side surface of the plurality of first ribs forms a first surface. a plurality of second ribs are laterally spaced apart and extend in a longitudinal direction on the other side surface of the plurality of first ribs, and a side surface of the plurality of second ribs away from the first rib forms a second surface . The support frame 32 of the present invention is provided with a plurality of first ribs extending in the longitudinal direction and extending in the lateral direction inside the frame and a plurality of sections extending laterally and longitudinally on one side surface of the plurality of first ribs The two ribs thus ensure the continuity of the air flow passage on the one hand, and greatly reduce the volume of the support frame 32 on the other hand, and greatly enhance the strength of the support frame 32. In addition, the above structure of the support frame 32 ensures that the air-conditioning membrane 31 can obtain sufficient support, and can maintain a good flatness even when the negative pressure inside the oxygen-rich gas collection chamber is large, and the gas-regulating film is ensured. The service life of assembly 30.

In a further embodiment, the plurality of first ribs may include a plurality of first narrow ribs and a plurality of first wide ribs. Wherein a plurality of first wide ribs are spaced apart, and a plurality of first narrow ribs are disposed between the adjacent two first wide ribs. The plurality of second ribs may include: a plurality of second narrow ribs and a plurality of second wide ribs, wherein the plurality of second wide ribs are spaced apart, and a plurality of the second wide ribs are disposed between the two adjacent Second narrow rib. Those skilled in the art will readily appreciate that "wide" and "narrow" herein are relative.

In some embodiments, each of the first wide ribs is recessed inwardly from a side surface thereof on which the first surface is formed to form a first groove; a side surface from which the second wide rib is formed to form the second surface The second groove is recessed inwardly to improve the connectivity of the internal mesh structure while ensuring that the thickness of the support frame 32 is small (or small).

In a further embodiment, a portion of the surface of each of the first wide ribs facing away from the first surface extends toward the second rib to be flush with the second surface, and the portion of the surface that is flush with the second surface is inward The recess forms a third trench; the third trench communicates with a portion where the second trench intersects to form a cross trench. a portion of the surface of the at least one second wide rib of the plurality of second wide ribs facing away from the second surface extends toward the first rib to be flush with the first surface, and the portion of the surface that is flush with the first surface Forming a fourth trench inwardly; wherein the fourth trench communicates with a portion where the first trench intersects to form a cross trench.

In some embodiments of the present invention, the top wall of the drawer body 22 includes a main plate portion 224 and a cover portion 225. A partial portion of the main plate portion 224 is formed with a recessed portion, and the cover portion 225 is detachably covered in the recess. Part to form a receiving cavity. In order to facilitate the manufacture of the drawer body 22, the main plate portion 224 may be integrally formed with the side wall, the bottom wall, and the rear wall of the drawer body 22.

Further, in order to facilitate the flow of the airflow, the inner surface of the cover portion 225 may extend downwardly from the plurality of air guiding ribs to guide the airflow from the fan 60 to flow through the air conditioning membrane module 30 in the accommodation chamber. The membrane 31 faces away from the outside surface of the oxygen-rich gas collection chamber. The plurality of air guiding ribs may be divided into two groups, and the second group of air guiding ribs are symmetrically disposed with respect to one plane of the first group of air guiding ribs and the first group of air guiding ribs. Each set of air guiding ribs includes a first air guiding rib, at least one second air guiding rib, and at least one third air guiding rib. The first air guiding rib extends from a side of the air outlet of the centrifugal fan to a side of the receiving cavity and extends to a laterally outer side of the air conditioning film assembly 30. Each of the second air guiding ribs is disposed between the two first air guiding ribs and between the air conditioning film assembly 30 and the centrifugal fan. Each of the third air guiding ribs is located on a lateral outer side of the air conditioning membrane module 30 to direct airflow from the lateral sides of the air conditioning membrane module 30 into the air conditioning membrane module 30 and the bottom or top surface of the receiving chamber. The gap between them.

In some embodiments of the present invention, the drawer body 22 may be provided with a plurality of micro holes, and the storage space 211 and the modified atmosphere are connected via a plurality of micro holes. The micropores may also be referred to as gas pressure balance pores, and each micropore may be micropores of the order of millimeters, for example, each micropore has a diameter of 0.1 mm to 3 mm, preferably 1 mm, 1.5 mm, or the like. Set a number of micro-holes to keep the atmosphere fresh The pressure in the room is not too low, and the arrangement of the plurality of micropores does not cause the nitrogen in the atmosphere of the modified atmosphere to flow to the large storage space 211, even if the flow is small or even negligible, and will not be affected. Preservation of food in the atmosphere. In some optional embodiments of the present invention, the micro-holes may not be disposed on the drawer body 22. Even in this case, a large amount of gas such as nitrogen gas is present in the atmosphere of the modified atmosphere, and the user does not need to open the drawer body 23 when the drawer body 23 is opened. Too much effort, compared to the existing vacuum storage room, it will save a lot of effort.

In some embodiments of the invention, the storage space 211 is a refrigerated space having a storage temperature generally between 2 ° C and 10 ° C, preferably between 3 ° C and 8 ° C. Further, the casing 20 may further define a freezing space 25 and a temperature changing space 26. The freezing space 25 is disposed below the storage space 211, and the temperature changing space 26 is disposed between the freezing space 25 and the refrigerating space. The temperature within the freezing space 25 is generally in the range of -14 ° C to -22 ° C. The temperature change space 26 can be adjusted as needed to store the appropriate food. In some alternative embodiments of the present invention, the storage space 211 may also be a freezing space or a temperature changing space, that is, the temperature range of the storage space 211 may be controlled at -14 ° C to -22 ° C or adjusted according to requirements. . Further, the relative positions of the refrigerating space, the freezing space, and the temperature changing space can be adjusted according to actual needs.

5 is a schematic structural view of another perspective of the structure shown in FIG. 1. In some embodiments of the present invention, as shown in FIG. 7, the refrigeration system may include a compressor, and a compressor chamber is further defined in the casing 20. 24. The compressor cartridge 24 extends in the lateral direction of the casing 20 and may preferably be disposed behind the lower portion of the freezing space 25. The aspirator 40 can include an air pump that is in communication with the oxygen-rich gas collection chamber of the gas conditioned membrane assembly 30 via line 50. Further, the air extracting device 40 is disposed at one lateral end of the compressor casing 24. The compressor may be disposed at the other lateral end of the compressor block 24 such that the distance of the air extracting device 40 from the compressor is relatively long, reducing noise superposition and waste heat stacking. For example, the air extracting device 40 may be disposed at one end of the compressor housing 24 adjacent to the pivoting side of the main door body. When the refrigerating and freezing device is a door-to-door refrigerator, the air extracting device 40 may be disposed at either end of the compressor bed 24. In other embodiments of the invention, the aspirator 40 is disposed adjacent to the compressor, and the aspirator 40 is disposed at one end of the compressor block 24 and between the compressor and the sidewall of the compressor block 24.

In some embodiments of the invention, the air extraction device 40 may further include a mounting base plate and a sealed box. The mounting base plate can be mounted to the underside of the compressor block by a plurality of damping feet. The sealed box is mounted to the mounting base. The air pump is installed in a sealed box. That is to say, the air pump can be disposed inside a sealed box, and the sealed box can be installed in the compressor casing 24 through the mounting bottom plate. When the pump is running, the sealed box can block noise and/or waste heat from spreading to a large extent. Further, in order to improve the damping and noise reduction effect, a plurality of damping pads (which may be made of rubber) may be installed on the mounting base plate. The number of the vibration-damping pads is preferably four, and the four vibration-damping pads are installed in the foot-mounting holes opened at the four corners of the mounting base.

The conduit 50 can include a connecting pipe segment that extends from top to bottom. The connecting pipe section is disposed at the rear of the storage space 211, and the lower end of the connecting pipe section is in communication with the inlet of the air pump, and the upper side of the connecting pipe section is in communication with the oxygen-rich gas collecting cavity of the gas regulating membrane module 30. The connecting pipe section can be disposed adjacent to the side shell and the backing plate of the casing 20, and the connecting pipe section can be provided with a heat insulating sleeve or a heat insulating pipe, which can prevent the cold amount of oxygen in the connecting pipe section from being transmitted to the side shell and the backboard, thereby preventing condensation from being generated. .

In some embodiments of the present invention, the sealing box is internally provided with a mounting frame, the mounting frame and the inner wall of the sealing box are connected by a plurality of damping blocks, and the air pump is fixed inside the mounting frame, so as to reduce the operation of the pump when the pump is running. Vibration and noise. Specifically, the bottom of the mounting frame is provided with two damping blocks, and the damping blocks are sleeved on the positioning posts on the bottom surface of the sealing box. A circular damping block is disposed on one of the opposite sides of the mounting frame, and is disposed in the slot of the corresponding side wall of the sealing box. A damping block is fixed to each of the opposite sides of the mounting frame. The air pump can be placed between the various damping blocks in the sealed box and fastened to the mounting frame by screws.

In some embodiments of the invention, a locking device, a handle and a handle are disposed between the drawer body 23 and the drawer cylinder 22 Hand positioning device. The locking device includes a pivotal latch disposed on either side of the drawer end cap, two latching portions disposed on the drawer body 22, and a snap-action promoting device. Each of the fastening portions may be a protrusion. The snap-in urging means can be used to urge the two pivotal latches to rotate in a direction of snapping into the respective snap-fit portions (i.e., respective first directions). The handle extends horizontally and is slidably mounted to the drawer end cap in a vertical direction. Moreover, when the drawer body 23 is in the closed state, the position at which the handle is located may be the initial position of the handle. And the handle is configured to be in contact with the two pivotal latches in contact with each of the two pivotal latches in their initial position to prevent each pivotal latch from rotating in the other direction opposite the respective first direction, such that The pivotal latch is in a mated state with the latching portion to lock the drawer body 23 to the drawer body 22. Further, each of the pivotal locks is allowed to rotate in another direction opposite the respective first direction when the handle is moved up or down to the release lock position, ie, from the initial position to the release hold position. To allow the pivotal latch to be rotated away from the corresponding latch when the drawer body 23 is pulled outwardly, thereby allowing the drawer body 23 to be opened. The handle positioning device is configured to hold the handle in position after the handle is moved to each predetermined position, primarily the initial position and the release retention lock position. When the drawer body is opened, the user first moves the handle up or down to the unlocking lock position, and the handle positioning device holds the handle in this position, and the user can pull the drawer body 23 outward. When the drawer body is closed, the user first closes the drawer body 23 and then returns the handle down or up to the initial position, and the handle positioning device holds the handle in this position, thereby keeping the drawer body 23 and the drawer cylinder 22 in the locked state. .

In order to further smooth the movement of the handle, the two ends of the handle are respectively provided with a guide rod and a slider, and the guide rod extends in the vertical direction. The drawer body 23 further includes two sets of slides, each set of slides having at least three sliding grooves extending in a vertical direction, so that the guide bars have a sliding groove on each side of the guide bar, and the slider moves on the remaining chutes, or Each side of the slider has a sliding slot, and the guiding rod moves on the remaining sliding slots. For example, each group of slide rails may include four sliding slots, and the front and rear sides of the guiding rods respectively have one sliding slot, and the lateral sides of the sliding block (ie, the left and right sides) respectively have a sliding slot.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

A refrigerating and freezing device, comprising:

a storage body defined in the storage compartment, wherein the storage space is provided with a storage container, and the storage container has a modified atmosphere;

a gas regulating membrane module having at least one gas regulating membrane and an oxygen-rich gas collecting chamber, wherein a surrounding space is in communication with the modified atmosphere, the gas regulating membrane module is configured such that the gas The oxygen in the space airflow around the membrane module passes through the gas membrane into the oxygen-rich gas collection chamber more than the nitrogen in the space airflow around the gas-conditioning membrane module;

An air suction device that communicates with the oxygen-rich gas collection chamber of the gas-regulating membrane module via a conduit to pump gas that has penetrated into the oxygen-rich gas collection chamber to the outside of the storage container;

A filtration purification device is mounted to the storage container and configured to filter at least a portion of the gas flowing from the modified atmosphere to the space surrounding the gas regulating membrane module.
The refrigerating and freezing apparatus according to claim 1, wherein

The storage container is a drawer assembly and includes:

a drawer cylinder having a forward opening and disposed in the storage space; and

A drawer body slidably disposed within the drawer body to operatively withdraw and inwardly insert the drawer body from a forward opening of the drawer body.
The refrigerating and freezing apparatus according to claim 2, wherein

A receiving cavity communicating with the modified atmosphere is disposed in a top wall of the drawer cylinder to accommodate the air conditioning membrane module.
The refrigerating and freezing apparatus according to claim 3, wherein

At least one first vent hole and at least one first spaced apart from the at least one first vent hole are defined in a wall surface between the accommodating cavity of the top wall of the drawer cylinder and the modified atmosphere a venting hole for respectively connecting the accommodating cavity and the modified atmosphere in different positions;

The refrigerating and freezing device further includes a fan disposed in the accommodating cavity to urge the gas in the conditioned space to sequentially pass through the at least one first vent hole, the accommodating cavity, and the at least one second pass The vent is returned to the modified atmosphere.
The refrigerating and freezing apparatus according to claim 4, wherein

The filter purification device includes a first filter mesh installed at the at least one first vent hole and such that the first A filter covers the at least one first vent.
A refrigerating and freezing apparatus according to claim 5, wherein

The filter purification device further includes a second filter mesh installed at the at least one second vent hole and causing the second filter mesh to cover the at least one second vent hole.
The refrigerator-freezer according to claim 6, wherein

The first filter mesh and the second filter mesh are both molecular sieve filters and contain a precious metal catalyst.
The refrigerating and freezing apparatus according to claim 5, further comprising:

The sterilization device is mounted on the top wall of the drawer cylinder and adjacent to the at least one first ventilation hole, configured to disinfect and/or sterilize at least the gas in the modified atmosphere.
The refrigerating and freezing apparatus according to claim 4, wherein

The fan is a centrifugal fan disposed above the at least one first vent hole such that the rotation axis of the centrifugal fan is vertically downward, and the air inlet of the centrifugal fan faces the at least one first vent hole;

The air conditioning membrane module is in the form of a flat plate, and the air conditioning membrane module is disposed above the at least one second venting hole such that the air conditioning membrane module is parallel to a top wall of the drawer cylinder.
The refrigerating and freezing apparatus according to claim 1, wherein

The gas regulating film assembly further includes a support frame having first and second surfaces parallel to each other, and the support frame is formed to extend on the first surface and extend on the second surface, respectively And a plurality of gas flow passages penetrating the support frame to communicate the first surface and the second surface, the plurality of gas flow channels collectively forming the oxygen-rich gas collection chamber;

The at least one air-conditioning membrane is two planar air-conditioning membranes respectively laid on the first surface and the second surface of the support frame.