WO2018161918A1

WO2018161918A1 - Refrigerating and freezing device and drawer assembly thereof

Info

Publication number: WO2018161918A1
Application number: PCT/CN2018/078284
Authority: WO
Inventors: 王晶; 张�浩; 朱小兵; 王胜飞
Original assignee: 青岛海尔股份有限公司
Priority date: 2017-03-07
Filing date: 2018-03-07
Publication date: 2018-09-13
Also published as: CN106989556B; CN106989556A

Abstract

A drawer assembly (200), comprising: a cabinet (10) defining a controlled atmosphere fresh-keeping space (202) of which a front side is opened, a hollowed-out portion (13) being arranged on a top wall of the cabinet; a drawer (20), which can be inserted into the cabinet (10) in a push-pull manner from the front side of the cabinet (10); a housing (15), which is installed at the top wall of the cabinet (10) outside the cabinet (10) and covers the hollowed-out portion (13) in a sealing manner to define a containing cavity (11) together with the top wall of the cabinet (10); a controlled atmosphere membrane component (30), which is arranged within the containing cavity (11), has at least one controlled atmosphere membrane (31) and an oxygen-enriched gas collecting cavity, and is configured in such a way that more oxygen than nitrogen in the containing cavity (11) can penetrate through the controlled atmosphere membrane (31) to enter the oxygen-enriched gas collecting cavity; and a fan (40) arranged in the containing cavity (11), such that gas in the controlled atmosphere fresh-keeping space (202) flows into the fan (40) through one side of the hollowed-out portion (13) to be blown to the controlled atmosphere membrane component (30) by the fan (40), and then flows back from the other side of the hollowed-out portion (13).

Description

Refrigerated freezer and its drawer assembly

The present application claims the priority of the Japanese Patent Application Serial No. JP-A--------------

Technical field

The present invention relates to a refrigeration apparatus, and more particularly to a refrigeration refrigeration apparatus and a drawer assembly thereof.

Background technique

With the improvement of the quality of life, consumers have higher and higher requirements for food preservation of refrigerators, freezers and other refrigerating and freezing devices. The modified atmosphere preservation technology generally refers to a technique for prolonging the storage life of a food by adjusting the gas atmosphere (gas composition ratio or gas pressure) of the enclosed space in which the storage is located, and the basic principle is: in a certain closed space. A gas atmosphere different from the normal air component is obtained by various adjustment methods to suppress physiological and biochemical processes and microbial activities leading to spoilage of the stored matter (usually the foodstuff). In particular, in the present application, the modified atmosphere preservation will be specifically directed to a modified atmosphere preservation technique that adjusts the proportion of gas components.

It is known to those skilled in the art that normal air components include (by volume percent, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gases (氦, 氖, argon, krypton, xenon,氡), 0.031% of carbon dioxide, and 0.03% of other gases and impurities (for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc.. In the field of modified atmosphere preservation, it is usually used to fill the enclosed space with nitrogen-enriched gas. The oxygen content is reduced to obtain a nitrogen-rich and oxygen-poor fresh gas atmosphere. Here, those skilled in the art know that the nitrogen-enriched gas refers to a gas having a nitrogen content exceeding the nitrogen content in the above-mentioned normal air, for example, the nitrogen content may be 95. % to 99%, or even higher; and the nitrogen-rich and oxygen-poor fresh gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the above-mentioned normal air nitrogen content and the oxygen content is lower than the oxygen content in the above-mentioned normal air.

The history of modified atmosphere preservation technology dates back to 1821 when German biologists discovered that fruits and vegetables could reduce metabolism at low oxygen levels. But until now, due to the large size and high cost of nitrogen-making equipment traditionally used for gas-conditioning preservation, the technology is basically limited to use in various large-scale professional storage (the storage capacity is generally at least 30 tons). . 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 the prior art and to provide a novel drawer assembly that creatively proposes to evacuate oxygen in the air in the containment space out of the space, thereby obtaining a nitrogen-rich lean in the space. Oxygen to promote the gas atmosphere of food preservation.

Further, the present invention is to improve the fluidity of the gas flow in the atmosphere of the modified atmosphere so that the oxygen is discharged as much as possible and faster.

Another object of the present invention is to provide a refrigerating and freezing apparatus having the above drawer assembly.

In one aspect, the present invention provides a drawer assembly for a refrigerated freezer that includes:

The cylinder body defines an air-conditioned fresh-keeping space with an open front side, and the top wall has a hollow portion for allowing airflow into and out of the air-conditioning space;

a drawer that can be inserted into the cylinder from the front side of the cylinder;

a casing, outside the cylinder and mounted on the top wall of the cylinder, the casing sealing cover buckle hollow portion to define a receiving cavity together with the top wall of the cylinder;

The gas regulating membrane module is disposed in the accommodating chamber, has at least one gas regulating membrane and an oxygen-rich gas collecting chamber, and is configured to allow oxygen in the accommodating chamber to pass through the gas regulating membrane to enter the oxygen-rich gas collection more than nitrogen gas Cavity; and

The fan is disposed in the accommodating cavity and located on a lateral side of the gas regulating membrane module, so that the gas of the modified atmosphere is flowed into the fan through the side of the hollow portion, blown by the fan to the gas regulating membrane module, and then from the other side of the hollow portion Flow back to the air conditioning space.

Optionally, the fan is a centrifugal fan, and the air inlet is facing downward to connect the air conditioning space through the hollow portion, and the air outlet faces the air conditioning membrane module.

Optionally, there is a gap between the top of the air conditioning membrane module and the casing to allow airflow therethrough.

Optionally, the air conditioning membrane module and the fan are detachably mounted to the casing.

Optionally, the inner wall of the casing has two air guiding ribs disposed at intervals, and the two air guiding ribs are configured to define a wind guiding passage together with the casing and the top wall of the cylinder, and two air guiding channels The ends are respectively directed toward the air outlet of the fan and the air conditioning membrane module.

Optionally, the gas regulating membrane module includes an outlet pipe that communicates with the oxygen-rich gas collection chamber to extract gas from the oxygen-rich gas collection chamber; and the gas outlet tube is disposed at a lateral end of the gas regulating membrane module away from the fan.

Optionally, the drawer assembly further includes: a germicidal lamp disposed in the receiving chamber to sterilize the gas.

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 channels of the first surface and the second surface, and the plurality of airflow channels jointly form an oxygen-rich gas collecting chamber; and the at least one gas regulating film is two planar air-conditioning membranes respectively laid on the support frame On a surface and a second surface.

In another aspect, the present invention provides a refrigerating and freezing apparatus comprising:

a drawer assembly according to any of the preceding claims; and

An air extraction device is configured to communicate with the oxygen-enriched gas collection chamber of the air-conditioning membrane module of the drawer assembly via a conduit to draw gas from the oxygen-enriched gas collection chamber.

Optionally, the refrigerating and freezing device further comprises: a drawer position detecting device configured to generate a drawer closing signal after the drawer is completely pushed into the cylinder; and a controller electrically connected to the drawer position detecting device, the fan and the air extracting device, The fan and drawer device are configured to be activated upon receipt of the drawer closing signal; the fan and drawer device are closed when the drawer closing signal is not received.

The refrigerating and freezing device and the drawer assembly thereof of the invention have the gas regulating membrane module, 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 preservation space of the fruit and vegetable. It can reduce the intensity of aerobic respiration of fruits and vegetables, and at the same time ensure the basic respiration and prevent anaerobic respiration of fruits and vegetables, so as to achieve the purpose of long-term preservation of fruits and vegetables. The fan can increase the flow of the gas in the atmosphere of the modified atmosphere and accelerate the entry of the gas into the oxygen-rich gas collection chamber.

Further, in the drawer assembly of the present invention, the air-conditioning membrane module is disposed in the accommodating cavity defined by the top wall of the cylinder and the casing, does not affect the normal storage of the drawer, and prevents the movement of the drawer and the food in the drawer. Collision damages the air conditioning membrane module.

Further, the drawer assembly of the present invention not only has a good fresh-keeping effect, but also has low rigidity and strength requirements for the drawer and the cylinder, and the implementation requirements are low, and the cost is also low.

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 structural view of a drawer assembly according to an embodiment of the present invention;

Figure 2 is an exploded perspective view of the drawer assembly of Figure 1;

Figure 3 is a schematic view showing the bottom structure of the casing of the drawer assembly shown in Figure 1;

Figure 4 is an exploded perspective view of the air conditioning membrane module of the drawer assembly of Figure 2;

Figure 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;

Figure 6 is a schematic structural view of another perspective view of the refrigerating and freezing apparatus shown in Figure 5;

Figure 7 is a schematic view showing the structure of the cylinder in the drawer assembly shown in Figure 1.

detailed description

1 is a schematic structural view of a drawer assembly according to an embodiment of the present invention; FIG. 2 is an exploded perspective view of the drawer assembly of FIG. 1; and FIG. 3 is a bottom structural view of the casing of the drawer assembly of FIG.

As shown in FIGS. 1 through 3, an embodiment of the present invention provides a drawer assembly 200 for a refrigerating and freezing apparatus, which may include a barrel 10, a drawer 20, a casing 15, a gas regulating membrane module 30, and a blower 40. The cylinder 10 defines a modified atmosphere 202 with a front side open, and the top wall has a hollow portion 13 that allows airflow into and out of the modified atmosphere 202. The hollow portion 13 may include a plurality of closely arranged through holes. The drawer 20 is detachably inserted into the cylinder 10 from the front side of the cylinder 10 for storage. The front end cover of the drawer 20 cooperates with the front side opening of the cylinder 10 to open or close the modified atmosphere 202, so that the modified atmosphere 202 is relatively closed. The casing 15 is outside the cylinder 10 and is mounted on the top wall of the cylinder 10 (referring to the outer top wall, the same below), and the casing 10 seals the cover buckle hollow portion 13 to be common with the top wall of the cylinder 10. A receiving chamber 11 is defined such that the hollow portion 13 communicates only with the atmosphere fresh-keeping space 202 and the accommodating chamber 11. The gas regulating membrane module 30 is disposed in the accommodating chamber 11 and has at least one gas regulating membrane and an oxygen-rich gas collecting chamber. The air-conditioning membrane module 30 may be in the form of a flat plate as a whole, and is preferably horizontally disposed in the accommodating chamber 11 to save space occupied by it.

The gas conditioned membrane module 30 can be configured such that oxygen in the accommodating chamber 11 passes through the conditioned membrane more than the nitrogen in the accommodating chamber 11 into the oxygen-rich gas collection chamber. Specifically, the inner side of each of the air-conditioning membranes faces the oxygen-rich gas collecting chamber, and the outer side faces the accommodating chamber 11. When the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the accommodating chamber 11, the oxygen in the air accommodating the chamber 11 passes through the gas. The membrane is introduced into the oxygen-rich gas collection chamber. Since the accommodating chamber 11 communicates with the modified atmosphere 202, a part of the oxygen in the air in the modified atmosphere 202 is discharged, and a nitrogen-rich and oxygen-poor atmosphere can be obtained in the modified atmosphere 202 to facilitate the food atmosphere.

The fan 40 is disposed in the accommodating chamber 11 and on the lateral side of the air-conditioning membrane module 30 (laterally referred to as the left-right direction to be marked in the drawing), for example, the fan 40 is disposed in the air-conditioning membrane module 30 as shown in FIG. On the left side, of course, it can also be set on the right side. In this way, the gas of the modified atmosphere 202 can be flowed into the blower 40 through one side (the left side in the drawing) of the hollow portion 13, and is accelerated by the blower 40 to the gas regulating membrane module 30, and then flows back from the other side of the hollow portion 13. The atmosphere fresh-keeping space 202 is such that the gas of the modified atmosphere 202 is continuously circulated through the periphery of the air-conditioning membrane module 30, enhancing the oxygen collection effect of the air-conditioning membrane module 30. Further, according to the inventors' test, it is possible to obtain a more efficient oxygen collecting effect by arranging the blower 40 on the lateral side of the gas regulating membrane module 30 than on the front side and the rear side of the front side.

In the embodiment of the present invention, when the drawer assembly 200 is in use, the gas that has penetrated into the oxygen-rich gas collecting chamber can be extracted by an air extracting device (such as a vacuum pump), so that the pressure in the oxygen-rich gas collecting chamber is smaller than that in the receiving chamber 11. The pressure creates a negative pressure environment in the oxygen-rich gas collection chamber to facilitate the absorption of ambient air into it. After most of the oxygen is extracted, the main component of the gas in the modified atmosphere 202 is nitrogen and a part of oxygen, which can reduce the intensity of aerobic respiration of fruits and vegetables, while ensuring the basic respiration and preventing anaerobic respiration of fruits and vegetables, thereby achieving long-term fruit and vegetable respiration. The purpose of preservation. 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 accommodation space, so that fruits and vegetables can be efficiently stored.

In order to facilitate connection with the air extracting device to extract the gas in the oxygen-rich gas collecting chamber, the gas regulating membrane module 30 further includes an air outlet pipe 33 that communicates with the oxygen-rich gas collecting chamber. The air outlet pipe 33 may be disposed at any position of the up, down, left, and right or top of the air conditioning film assembly 30. However, according to the inventor's test, the air outlet pipe 33 is disposed at a lateral end of the air-conditioning membrane module 30 away from the fan 40 (ie, disposed at the right end as shown in FIG. 3), so that the airflow direction of the air-conditioning membrane is consistent with the direction of the internal airflow (both For flow from left to right, a more efficient oxygen collection effect is desirable.

In some embodiments, as shown in FIG. 3, the fan 40 is preferably a centrifugal fan that is perpendicular to the direction of the wind in the direction of the incoming air. The air inlet 41 of the fan 40 faces downward to communicate with the air conditioning space 202 via the hollow portion 13, and the air outlet 42 faces the air conditioning membrane module 30. In this way, the wind can be blown directly from the air outlet 42 of the blower 40 to reduce the loss caused by the direction of the wind path.

After the air conditioning membrane module 30 is mounted to the accommodating chamber 11, a gap is preferably provided between the top portion and the casing 15 to allow airflow therethrough to increase the air inlet area of the air conditioning membrane module 40. Of course, a gap may also be provided between the bottom of the air-conditioning membrane module 30 and the bottom wall of the cylinder 10. Specifically, in some embodiments of the present invention, the air-conditioning film 31 on the upper side of the air-conditioning membrane module 30 is spaced from the top surface of the accommodating chamber 11 by a distance of 8 mm to 20 mm. The distance between the air-conditioning film 31 on the lower side of the air-conditioning membrane module 30 and the bottom surface of the accommodating chamber 11 is 8 mm to 20 mm. Further, the bottom wall of the cylinder 10 located at a position directly below the air-conditioning membrane module 30 is preferably provided with a hollow hole.

In some embodiments, as shown in FIG. 3, the air conditioning membrane module 30 and the fan 40 can be detachably mounted to the casing 15, and a screw connection or a snap connection can be used, and details are not described herein. In this way, complicated connection structures can be avoided on the top wall of the relatively large volume of the cylinder 10, which increases the manufacturing difficulty. Further, the inner wall of the casing 15 may have two air guiding ribs 151 disposed apart from each other. The two air guiding ribs 151 are disposed to define a wind guiding passage 152 together with the casing 15 and the top wall of the cylinder body 10, and the two ends of the air guiding passage 152 respectively face the air outlet 42 of the fan 40 and the air conditioning membrane module 30. . This allows the wind to be directed more toward the air-conditioning membrane module 30.

Further, a top cover 16 may be provided above the casing 15, and the cover 15 may be pressed against the cylindrical body 10 by the top cover 16. A seal 17 may also be provided at the joint of the casing 15 and the cylinder 10 to function as a seal damping.

In some embodiments, as shown in FIG. 2, the drawer assembly 200 further includes a germicidal lamp 60 disposed within the containment chamber 11 for sterilizing the gas. Specifically, it can be mounted on the top wall of the cylinder 10 and located in the vicinity of the gas regulating membrane module 30. The germicidal lamp 60 can adopt the germicidal lamp commonly used in the prior art, and will not be described herein.

4 is an exploded perspective view of the air conditioning membrane module of the drawer assembly of FIG. 2. 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. The support frame 32 has a first surface and a second surface 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 the first surface and the second surface. The plurality of airflow channels, the plurality of airflow channels collectively form an oxygen-rich gas collecting chamber; the at least one gas regulating membrane 31 is two planar air-conditioning membranes respectively laid on the first surface and the second surface of the support frame 32.

In some embodiments of the invention, the support frame 32 includes an air outlet tube 33 in communication with the aforementioned at least one airflow passageway disposed on the bezel to allow oxygen in the oxygen-rich gas collection chamber to be output. The air outlet pipe 33 is in communication with the air extracting device 400. Specifically, the air outlet pipe 33 can 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 the actual design requirements. For example, in FIG. 3, the air outlet pipe 33 can be disposed on 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 aforementioned at least one airflow passage formed inside the support frame 32 may be one or more cavities in communication with the air outlet duct 33. In some embodiments, the aforementioned at least one airflow passage formed inside the support frame 32 may have a mesh structure. Specifically, the support frame 32 may 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, in order to facilitate the flow of airflow, as shown in FIG. 4, the inner surface of the cover portion 15 may extend downwardly from the plurality of air guiding ribs to guide the airflow from the fan 40 in the receiving cavity. 11 flows through the outer surface of each of the air-conditioning membranes 31 of the gas-regulating membrane module 30 away from the oxygen-rich gas collecting 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 151, at least one second air guiding rib 152 and at least one third air guiding rib 153. The first air guiding rib 151 extends from one side of the air outlet of the centrifugal fan to one side of the accommodating cavity and extends to one lateral outer side of the air conditioning film assembly 30. Each of the second air guiding ribs 152 is disposed between the two first air guiding ribs 151 and between the air conditioning film assembly 30 and the centrifugal fan. Each of the third air guiding ribs 153 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 barrel 10 may be provided with a plurality of micropores, and the receiving space may communicate with the outside of the receiving space via the plurality of micro holes. Micropores can also be referred to as air pressure balance holes. Each of the micropores may be micropores of the order of millimeters, for example, each of the micropores has a diameter of 0.1 mm to 3 mm, preferably 1 mm, 1.5 mm or the like. The provision of a plurality of micropores can prevent the pressure in the accommodating space from being too low, and the arrangement of the plurality of micropores does not cause the nitrogen in the accommodating space to flow out, even if the flow is small or even negligible, and does not affect The storage of food in the accommodation space. In some optional embodiments of the present invention, the micro-holes may not be disposed on the cylinder 10. Even if a large amount of gas such as nitrogen gas is present in the accommodating space, the user does not need to work too much when pulling the drawer 20. Compared with the existing vacuum storage room, it will save a lot of effort.

Fig. 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention; and Fig. 6 is a schematic structural view of another refrigerating and freezing apparatus shown in Fig. 5. As shown in FIG. 5 and FIG. 6, an embodiment of the present invention provides a refrigerating and freezing apparatus, which may include the drawer assembly 200 and the air extracting device 400 in any of the above embodiments. The air extracting device 400 communicates with the oxygen-enriched gas collecting chamber of the air-conditioning membrane module 30 of the drawer assembly 200 via the pipeline 500 to pump the gas that has penetrated into the oxygen-rich gas collecting chamber to the outside of the drawer assembly 200, and to make the oxygen-rich gas The pressure of the body collection chamber is less than the pressure of the receiving chamber 11 of the drawer assembly 200.

In some embodiments of the invention, the refrigerated freezer may further include a tank 100, a door body, and a refrigeration system. A storage space 110 and a compressor compartment 140 are defined within the casing 100. The barrel 10 of the drawer assembly 200 is disposed within the storage space 110. Specifically, the cylinder 10 may be disposed at a lower portion of the storage space 110. Of course, as can be appreciated by those skilled in the art, the barrel 10 can also be disposed in the middle or upper portion of the storage space 110. The door body can be composed of two facing doors, which can be rotatably mounted to the box 100 and configured to open or close the storage space 110 defined by the box 100. Alternatively, the door body may have only one door. The refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, and an evaporator. The compressor is mounted to the compressor block 140. The evaporator is configured to provide cooling directly or indirectly into the storage space 110. Further, the storage space 110 and the accommodation space are connected via a plurality of micro holes.

In some embodiments of the invention, the storage space 110 is a refrigerating compartment having a storage temperature generally between 2 ° C and 10 ° C, preferably between 3 ° C and 8 ° C. Further, the box 100 may further define a freezing compartment 120 and a changing greenhouse 130. The freezing compartment 120 is disposed below the storage space 110, and the variable greenhouse 130 is disposed between the freezing compartment 120 and the refrigerating compartment. The temperature within the freezer compartment 120 typically ranges from -14 °C to -22 °C. The variable greenhouse 130 can be adjusted as needed to store the appropriate food. The compressor cartridge 140 is preferably disposed below the lower portion of the freezing compartment 120. In some alternative embodiments of the present invention, the storage space 110 may also be the freezing compartment 120 or the variable greenhouse 130, that is, the temperature range of the storage space 110 may be controlled between -14 ° C and -22 ° C or according to requirements. Make adjustments. Further, the relative positions of the refrigerating compartment, the freezing compartment, and the changing greenhouse can be adjusted as needed.

In some embodiments of the present invention, the air extracting device 400 is disposed in the compressor compartment 140, and can fully utilize the space of the compressor bay 140 without occupying other places, thereby not increasing the extra volume of the refrigerating and freezing device. The structure of the refrigerating and freezing device is compact. The compressor compartment extends in the lateral direction of the casing, and the suction device 400 can be disposed at the lateral end of the compressor casing 140. The compressor may be disposed at the other lateral end of the compressor block 140 such that the distance of the air extracting device 400 from the compressor is relatively long, reducing noise superposition and waste heat superposition. In other embodiments of the invention, the aspirator 400 is disposed adjacent to the compressor, and the aspirator 400 is disposed at one end of the compressor block 140 and between the compressor and the sidewall of the compressor block 140.

Further, the air extracting device 400 may include an air pump, a mounting bottom plate, and a sealed box. The mounting base plate can be mounted to the underside of the compressor block 140 by a plurality of damping feet. The sealed box is mounted to the mounting base. The air pump is installed in a sealed box. When the pump is running, the sealed box can block noise and/or waste heat from spreading to a large extent. Multiple damping pads (which can be made of rubber) further enhance the damping and noise reduction. The inside of the sealed box is provided with a mounting frame. The inner wall of the mounting frame and 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 vibration and noise during operation of the pump. 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, the refrigerated freezer further includes a drawer position detecting device and a controller. The drawer position detecting device is configured to generate a drawer closing signal after the drawer 20 is fully pushed into the barrel 10. The controller is electrically coupled to the drawer position detecting device, the blower 40, and the air extracting device 400, and is configured to activate the blower 40 and the drawer device 400 after receiving the drawer closing signal to cause the drawer assembly 200 to operate normally. When the drawer closing signal is not received, that is, when the drawer 20 is in an open state or is not closed, the fan 40 and the drawer device 400 are turned off, thereby avoiding the meaningless energy consumption of the opening of the fan 40 and the drawer device 400 at this time.

Figure 7 is a schematic view showing the structure of the cylinder in the drawer assembly shown in Figure 1. As shown in Fig. 7, the drawer position detecting device 18 can be disposed on the rear wall of the cylindrical body 10 such that the sensing portion 181 projects into the inside of the cylindrical body 10 through the opening 19 of the rear wall of the cylindrical body 10. When the drawer 20 is fully pushed into the barrel 10, the rear end of the drawer 20 touches the sensing portion 181, causing the drawer position detecting device 18 to generate a drawer closing signal.

The drawer position detecting device may be a circuit mechanical switch, and the sensing portion 181 may be a spring piece. Alternatively, the drawer position detecting device may be other electromagnetic devices or sensors commonly used in the prior art that are capable of generating a preset signal upon being touched.

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 drawer assembly for a refrigerating and freezing device, comprising:

The cylinder body defines an air-conditioning space with an open front side, and a top wall thereof has a hollow portion for allowing airflow into and out of the air-conditioning space;

a drawer insertably inserted into the cylinder from a front side of the cylinder;

a casing, outside the cylinder and mounted on the top wall of the cylinder, the casing sealing cover buckles the hollow portion to define a receiving cavity together with the top wall of the cylinder;

a gas regulating membrane module disposed in the accommodating chamber, having at least one gas regulating membrane and an oxygen-rich gas collecting chamber, and configured to allow oxygen in the accommodating chamber to pass through the gas modulating more than nitrogen gas Membrane entering the oxygen-rich gas collection chamber; and

a fan disposed in the accommodating cavity and located on a lateral side of the conditioned membrane module, such that gas of the conditioned space flows into the fan through a side of the hollow portion, and is blown by the fan The gas regulating membrane module is further returned to the modified atmosphere from the other side of the hollow portion.
The drawer assembly according to claim 1, wherein the fan is a centrifugal fan, the air inlet is facing downward to communicate with the modified atmosphere through the hollow portion, and the air outlet is directed toward the air conditioning membrane module .
The drawer assembly of claim 1 wherein there is a gap between the top of the air-conditioning membrane module and the casing to allow airflow therethrough.
The drawer assembly of claim 1 wherein said air conditioning membrane assembly and said fan are detachably mounted to said housing.
The drawer assembly according to claim 1, wherein an inner wall of the casing has two air guiding ribs disposed apart from each other, and the two air guiding ribs are configured to be combined with the casing and the cylinder The top walls of the body collectively define an air guiding passage, and the two ends of the air guiding passage respectively face the air outlet of the fan and the air conditioning membrane assembly.
The drawer assembly of claim 1 wherein said gas regulating membrane assembly includes an outlet conduit that communicates with said oxygen-rich gas collection chamber to draw gas from said oxygen-enriched gas collection chamber; An air outlet tube is disposed at a lateral end of the air conditioning membrane module remote from the fan.
The drawer assembly of claim 1 further comprising: a germicidal lamp disposed within said receiving chamber for sterilizing the gas.
The drawer assembly according to claim 1, wherein the air-conditioning membrane module further comprises a support frame having first and second surfaces parallel to each other, and the support frame is formed on the support frame Extending on the first surface, extending over the second surface, and a plurality of gas flow passages extending through the support frame to communicate the first surface and the second surface, the plurality of gas flow channels collectively forming the oxygen-rich gas a body collecting cavity; and the at least one air conditioning film is two planar air conditioning films respectively laid on the first surface and the second surface of the support frame.
A refrigerating and freezing apparatus, comprising: the drawer assembly according to any one of claims 1 to 8; and an air suction device configured to be oxygen-rich via a conduit and a gas regulating membrane module of the drawer assembly The body collection chamber is in communication to extract gas from the oxygen-rich gas collection chamber.
A refrigerating and freezing apparatus according to claim 9, further comprising: drawer position detecting means configured to generate a drawer closing signal after said drawer is fully pushed into said cylinder; and a controller, said The drawer position detecting device, the fan and the air extracting device are electrically connected, configured to activate the fan and the drawer device after receiving the drawer closing signal; when the drawer closing signal is not received, The fan and the drawer device are closed.