CN213778315U - Refrigerator with a door - Google Patents

Abstract

The utility model provides a refrigerator. The utility model provides a refrigerator, which comprises a refrigerator body, wherein a storage chamber is arranged in the refrigerator body, and the refrigerator also comprises an air-conditioning fresh-keeping device, wherein the air-conditioning fresh-keeping device is provided with a drawer, an upper cover and an air-conditioning membrane component; the drawer is provided with a fresh-keeping space with an upward opening and can be slidably arranged in the storage compartment along the front-back direction; the upper cover is arranged at the opening of the fresh-keeping space in an openable way, and a sealing structure is arranged between the upper cover and the drawer, so that the fresh-keeping space is a closed space; the modified atmosphere module is mounted on the upper cover and is configured to cause more oxygen in the fresh keeping space to flow out of the fresh keeping space through the modified atmosphere module than nitrogen therein. Because the modified atmosphere preservation device is only provided with a closed space formed by the drawer and the upper cover, the structure of the modified atmosphere preservation device can be simple and compact. And because of having the gas-regulating membrane module, can achieve the purpose of prolonging the fresh-keeping time, keep the nutrient substance, it is obvious to keep fresh the effect, the application module is simple.

Description

Refrigerator with a door

Technical Field

The utility model relates to a cold-stored frozen storing technical field especially relates to a refrigerator.

Background

The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. With the improvement of living standard of people, a new height is provided for the preservation of food materials, and the preservation of food is more urgent. Most refrigerators in the market at present only have basic food material cold storage and freezing storage functions, food material preservation is not distinguished in detail, and the preservation function cannot meet the requirements of customers. Some refrigerators have separate fresh-keeping chambers, but the existing air-conditioning fresh-keeping structure is complex.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome at least one defect of the existing refrigerator for preservation and provides a novel refrigerator so as to ensure that the modified atmosphere preservation structure of the refrigerator is simple.

The refrigerator comprises a box body, a storage compartment and an air-conditioning and fresh-keeping device, wherein the box body is internally provided with the air-conditioning and fresh-keeping device which is provided with a drawer, an upper cover and an air-conditioning membrane assembly;

the drawer is provided with a fresh-keeping space with an upward opening and can be slidably arranged in the storage compartment along the front-back direction;

the upper cover is arranged at the opening of the fresh-keeping space in an openable and closable manner, and a sealing structure is arranged between the upper cover and the drawer, so that the fresh-keeping space is a closed space;

the modified atmosphere module is mounted to the upper cover and is configured to cause more oxygen in the fresh food space to flow out of the fresh food space through the modified atmosphere module relative to nitrogen therein.

Optionally, the upper cover is located in the storage compartment and is mounted on the top wall of the storage compartment; alternatively, the upper cover extends and retracts with the drawer.

Optionally, the upper cover is arranged so as to stop after the drawer is moved forward a preset distance when the drawer is extended forward.

Optionally, an air pipe support and a baffle plate positioned on one side of the air pipe support are arranged on the top wall of the storage compartment, and the baffle plate is vertically arranged and extends along the front-back direction;

the gas-regulating membrane component is connected with a gas pipe, the gas pipe is provided with a gas pipe section which is positioned on one side of the baffle plate, the side wall of the gas pipe support faces the gas pipe, one end of the gas pipe section is arranged at the front end of the side wall of the storage chamber, the other end of the gas pipe section is arranged on the upper surface of the upper cover, and the gas pipe section extends backwards from one end of the gas pipe section, is arranged on the gas pipe support and extends forwards to the other end of the gas pipe support.

Optionally, the air pipe support comprises a cross rod, the cross rod extends in the front-back direction and is positioned above the upper cover, a clamping groove which penetrates through the cross rod in the left-right direction and is provided with an upward opening is formed in the rear end of the cross rod, and the front end and the rear end of the cross rod are connected to the top wall of the storage compartment through vertical rods;

the air pipe section penetrates through the clamping groove to be installed on the air pipe support.

Optionally, the upper cover is mounted to the drawer to be movable back and forth;

the outer sides of the upper ends of the two side walls of the drawer are respectively provided with a first guide rail, and the two side walls of the storage compartment are provided with a second guide rail;

first supports are arranged on two sides of the front end of the upper cover, rollers matched with the first guide rail are arranged at the lower ends of the first supports, second supports are arranged on two sides of the rear end of the upper cover, and the lower ends of the second supports are matched with the second guide rail to move back and forth along the second guide rail.

Optionally, the first guide rail defines a guide groove with an opening facing the outside of the drawer, the guide groove extends along the horizontal direction, and the front end of the guide groove is provided with a downwardly bent yielding groove;

the second guide rail is a liner rib.

Optionally, the box body comprises an inner container, and the space in the inner container is the storage chamber;

the sealing structure is a sealing ring and is arranged on the lower surface of the upper cover.

Optionally, the refrigerator further comprises a flow path control device and two air extraction devices; the two air-conditioning fresh-keeping devices are arranged in the same storage room or respectively arranged in the two storage rooms; the two controlled atmosphere components are communicated with the two air extracting devices in a controlled manner through the flow path control device, so that any one of the controlled atmosphere components is communicated with the two air extracting devices through the flow path control device, or the two controlled atmosphere components are respectively communicated with the two air extracting devices through the flow path control device.

Optionally, the preset storage temperature in the fresh-keeping space is-5 ℃ to 0 ℃;

the air-conditioning fresh-keeping device is connected with an air extraction device through an air pipe;

the air pumping device comprises a pump head with an outlet and a motor, the pump head and the motor are thermally connected through a temperature-controlled heat conduction device, the temperature-controlled heat conduction device is configured to transfer heat generated by the motor to the pump head, and the heat transfer is cut off after the temperature of the pump head reaches a preset temperature;

the upper cover is also provided with a moisture permeable device, and the moisture permeable device is provided with a moisture permeable film so that moisture in the fresh-keeping space can be unidirectionally permeated to the outer side of the fresh-keeping space through the moisture permeable film.

In the refrigerator of the utility model, because the air-conditioning preservation device only has the airtight space formed by the drawer and the upper cover, the structure of the air-conditioning preservation device is simple and compact. And because of having the gas-regulating membrane module, can achieve the purpose of prolonging the fresh-keeping time, keep the nutrient substance, it is obvious to keep fresh the effect, the application module is simple.

Further, the utility model discloses well refrigerator can be preserved long time under the low temperature, adjusts the gas composition in the room when edible material preserves suitable humidity and temperature under the low temperature, improves fresh-keeping effect.

Further, the utility model discloses an in the refrigerator, the upper cover can remove along with the drawer short distance at drawer push-and-pull in-process, and the silica gel pipeline (be the trachea) that the upper cover is connected freely removes under restrictions such as tracheal stent, and the trachea removes smoothly, and operating condition is stable, does not influence the tube coupling and the fresh-keeping effect of gas regulation. Namely, the smooth movement of the pipeline can be ensured while the upper cover moves.

Furthermore, the utility model discloses a can have two gas conditioning fresh-keeping devices in the refrigerator, have two gas conditioning rooms promptly, each gas conditioning room all has respective gas conditioning membrane subassembly, utilizes two air exhaust device to take out oxygen, can show improvement oxygen speed, the maximize improvement oxygen reduction rate. Further through the real-time detection of oxygen concentration sensor to the accuse oxygen interval, adopt electronic cross valve to control the route, through program optimization control, can effectively improve the fresh-keeping oxygen reduction speed of accuse oxygen and oxygen reduction minimum, intelligent degree height.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a schematic partial structural view of a refrigerator according to an embodiment of the present invention;

fig. 3 is a schematic structural view of an air conditioning and refreshing apparatus in a refrigerator according to an embodiment of the present invention;

fig. 4 is a schematic structural view of an upper cover in a refrigerator according to one embodiment of the present invention;

fig. 5 is a schematic structural view of an inner container in a refrigerator according to an embodiment of the present invention;

fig. 6 is a schematic front view of a partial structure of a refrigerator according to an embodiment of the present invention;

FIG. 7 is a schematic partial block diagram of an air extractor in the refrigerator shown in FIG. 1.

Detailed Description

Fig. 1 is a schematic front view of a refrigerator according to an embodiment of the present invention. As shown in fig. 1 and with reference to fig. 2 to 7, an embodiment of the present invention provides a refrigerator. The refrigerator comprises a refrigerator body 20, a modified atmosphere preservation device 30 and a refrigerating system. A storage compartment is provided in the case 20. For example, the refrigerator 20 includes a refrigerating compartment 21, a freezing compartment 22, and a temperature-changing compartment 23. The storage temperature of the refrigerated compartment 21 is generally between 2 ℃ and 10 ℃, preferably between 3 ℃ and 8 ℃. The temperature in the freezer compartment 22 typically ranges from-14 ℃ to-22 ℃. The temperature-changing chamber 23 can be adjusted as required to store suitable food, and optionally, the temperature-changing chamber 23 has a temperature ranging from-24 ℃ to 10 ℃. Preferably, the temperature of the temperature-changing compartment 23 varies in the range of-8 ℃ to 0 ℃. Of course, other storage compartments may be disposed in the box 20. The refrigerating system is configured to provide cold energy to the storage compartment and can be composed of a compressor, a condenser, a throttling device, an evaporator and the like.

The modified atmosphere preservation device 30 is provided with a drawer 31, an upper cover 32 and a gas-regulating membrane module 33. The drawer 31 has a fresh space with an upward opening, and the drawer 31 is slidably installed in the storage compartment in the front-rear direction. The upper cover 32 is openably and closably provided at the opening of the fresh keeping space, and a sealing structure 34 is provided between the upper cover 32 and the drawer 31 so that the fresh keeping space is a closed space. The gas atmosphere module 33 is mounted to the upper lid 32, and the gas atmosphere module 33 is configured such that more oxygen in the fresh food space flows out of the fresh food space through the gas atmosphere module 33 than nitrogen therein. The air-conditioning and fresh-keeping device 30 is connected with an air extractor through an air pipe.

Each controlled atmosphere membrane module 33 is provided with at least one controlled atmosphere membrane and one oxygen-enriched gas collecting cavity, when the air extractor works, more oxygen in the airflow in the space around the controlled atmosphere membrane module 33 can penetrate through the controlled atmosphere membrane and enter the oxygen-enriched gas collecting cavity relative to the nitrogen in the airflow, and then the oxygen can flow out of the oxygen-enriched gas collecting cavity through the air pipe 40 and the air extractor, so that more oxygen in the fresh-keeping space can flow out of the fresh-keeping space relative to the nitrogen, and the fresh-keeping effect is improved. In the embodiment, the modified atmosphere preservation device 30 only has the closed space formed by the drawer 31 and the upper cover 32, so that the structure of the modified atmosphere preservation device 30 is simple and compact.

In some embodiments of the present invention, as shown in fig. 2, the upper cover 32 is disposed in the storage compartment and is installed on the top wall of the storage compartment. Further, the box body 20 includes an inner container, and the inner space of the inner container is a storage chamber. That is, the upper cover 32 may be mounted to the top wall of the inner container. The upper cover 32 is fixed on the inner container, the user is not recommended to disassemble after the production line is assembled, and after-sales personnel can disassemble, detect, replace and the like according to the specification. In some alternative embodiments of the present invention, the upper cover 32 extends and retracts with the drawer 31.

In some embodiments of the present invention, as shown in fig. 3 to 7, the upper cover 32 is arranged so as to be stopped after the drawer 31 moves forward by a preset distance while the drawer 31 is extended forward. For example, the upper cover 32 is mounted to the drawer 31 movably back and forth. The top wall of the storage compartment can be provided with a first stop block, the upper surface of the upper cover 32 can be provided with a second stop block, the upper cover 32 moves forwards along with the drawer 31 in the process of drawing the drawer 31 forwards, after the second stop block is contacted with the first stop block, the first stop block prevents the second stop block from moving forwards, only the drawer 31 moves forwards at the moment, and in the process of drawing the drawer 31, the upper cover 32 can be opened simultaneously to facilitate taking the articles.

In some further embodiments of the present invention, the outer sides of the upper ends of the two side walls of the drawer 31 are provided with first guide rails 311, and the two side walls of the storage compartment are provided with second guide rails 25. First supports 321 are arranged on two sides of the front end of the upper cover 32, rollers matched with the first guide rail 311 are arranged at the lower ends of the first supports 321, second supports 322 are arranged on two sides of the rear end of the upper cover 32, and the lower ends of the second supports 322 are matched with the second guide rail 25 to move back and forth along the second guide rail 25. Further, the first guide rail 311 defines a guide groove opened toward the outside of the drawer 31, the guide groove extends in the horizontal direction, and a front end of the guide groove has a downwardly bent escape groove. The special structure of the first guide rail 311 enables the upper cover 32 to better seal the drawer 31, and enables the front end of the upper cover 32 to tilt upwards during the opening process of the drawer 31, thereby facilitating the forward pulling of the drawer 31. The second guide rail 25 is a liner rib, can be integrally formed with the liner, and is convenient to process and manufacture.

The sealing structure 34 is a sealing ring, is arranged on the lower surface of the upper cover 32, and can be pressed and sealed by the gravity of the upper cover 32, so that the sealing effect is ensured.

In order to facilitate the movement of the upper cover 32, the top wall of the storage compartment is provided with an air tube bracket 50 and a baffle 60 positioned on one side of the air tube bracket 50, and the baffle 60 is vertically arranged and extends along the front-back direction. The air tube 40 connected with the modified atmosphere module 33 is provided with an air tube section 41 at one side of the baffle 60 facing the air tube bracket 50, one end of the air tube section 41 is arranged at the front end of the side wall of the storage compartment, the other end of the air tube section 41 is arranged on the upper surface of the upper cover 32, and the air tube section 41 extends from one end of the air tube section firstly to the back, is arranged on the air tube bracket 50 and then extends to the other end of the air tube section.

In some embodiments of the present invention, the tracheal stent 50 includes a cross rod 51, the cross rod 51 extends along the front-back direction and is located above the upper cover 32, the rear end of the cross rod 51 is provided with a slot which runs through the cross rod 51 and has an opening facing upwards along the left-right direction, and the front end and the rear end of the cross rod 51 are connected to the top wall of the storage chamber through the vertical rod 52. The trachea segment passes through the slot to fit over the tracheal stent 50. The gas pipe section 41 moves in the clamping groove. In some alternative embodiments of the present invention, a fastening hole penetrating in the left-right direction may be provided on the tracheal tube support 50. In other alternative embodiments of the present invention, the tracheal tube support 50 may have a slider that moves back and forth with the upper cap 32, the speed of the slider may be less than the speed of movement of the upper cap 32, and the tracheal tube segment may be mounted to the slider.

The air pipe can be a silica gel pipeline, namely made of silica gel materials. The upper cover 32 can move along with the drawer 31 in a short distance in the process of pushing and pulling the drawer 31, the silica gel pipeline connected with the upper cover 32 can move back and forth freely under the limitation of the air pipe bracket 50 and the baffle 60, the pipeline connection and the air conditioning and fresh-keeping effect are not influenced, the pipeline movement is smooth, and the working state is stable.

In some embodiments of the present invention, the predetermined storage temperature in the fresh-keeping space is-5 ℃ to 0 ℃, preferably-3 ℃, for example, the storage compartment in which the controlled atmosphere preservation device 30 is installed may be the variable temperature compartment 23. The seafood, fish and meat can be stored in the refrigerator at low temperature in a controlled atmosphere manner without losing flavor and nutrient substances in a short period, and the aims of prolonging the preservation time and retaining the nutrient substances can be fulfilled. In other embodiments, the storage compartment in which the modified atmosphere preservation device 30 is installed may be the refrigerating compartment 21 or the freezing compartment 22. The modified atmosphere preservation device 30 can be used for storing fruits and vegetables in the refrigerating chamber 21.

In some preferred embodiments of the present invention, there are two controlled atmosphere preservation devices 30, which are disposed in the same storage room or disposed in two storage rooms respectively. Preferably, the two drawers 31 are disposed in the two storage compartments, and the preset storage temperature in one storage container is different from the preset storage temperature in the other storage container, that is, the preset storage temperatures in the two fresh-keeping spaces are different. That is, the preset temperature in each storage room can be different, so that the preset storage temperature in the modified atmosphere preservation device 30 is different. The two storage compartments can be respectively a refrigerating compartment 21 and a temperature-changing compartment 23. In some alternative embodiments, two storage containers may be disposed in one storage compartment, however, the preset storage temperatures in the two storage containers are different. The temperature of each fresh-keeping chamber is different, for example, the temperature in the cold storage chamber 21 is set to be 5-8 ℃, which is beneficial to the fresh-keeping requirements of fruits, vegetables and the like; the temperature in the low-temperature chamber, such as the variable-temperature chamber 23, is set to be 0-minus 3 ℃, which is favorable for the fresh-keeping requirement of food materials such as meat, seafood and the like.

In the embodiment of the present invention, because there are two controlled atmosphere preservation devices 30, that is, there are two controlled atmosphere chambers, each controlled atmosphere chamber has its own controlled atmosphere module 33, and each controlled atmosphere chamber has its own temperature value range, so as to realize the preservation requirements of different food materials. In some alternative embodiments of the present invention, the predetermined warm storage temperatures in the two storage containers may be the same.

In some embodiments of the present invention, the refrigerator further comprises two air extracting devices and a flow path control device, the air extracting devices have air extracting ports, and the flow path control device has 4 valve ports respectively communicating the two oxygen-enriched gas collecting cavities and the two air extracting ports. That is to say, the two oxygen-enriched gas collecting cavities are communicated with the two air extractors in a controlled manner through the air pipe, the flow path control device and the two air extractors, so that the two air extractors can be simultaneously communicated with any one of the oxygen-enriched gas collecting cavities, or the two air extractors can be simultaneously and respectively communicated with the two oxygen-enriched gas collecting cavities. Further optionally, the flow path control device is an electric four-way valve. Two air extracting devices are used for extracting oxygen, so that the oxygen extracting speed can be obviously improved, and the oxygen reduction rate is improved to the maximum extent. Specifically, when two fresh-keeping spaces need to be deoxygenated, the two air extraction devices can be respectively communicated with the two oxygen-enriched gas collecting cavities; or the two air pumping devices are firstly communicated with one oxygen-enriched gas collecting cavity and then communicated with the other oxygen-enriched gas collecting cavity. When any one of the fresh-keeping spaces needs to be deoxygenated, the two air extraction devices can be communicated with the oxygen-enriched gas collection cavity.

In some embodiments of the present invention, a compressor compartment for placing a compressor is further disposed inside the box 20, and the air exhaust device is disposed in the compressor compartment. The flow path control device may be mounted within the compressor compartment adjacent to the air extraction devices, and more preferably, the flow path control device is integrated into one of the air extraction devices.

In some embodiments of the present invention, the refrigerator may further include a moisture permeable device. A communication port is provided at the rear of the upper surface of the upper cover 32. The moisture permeable device can be arranged at the communicating opening, and the moisture permeable device is provided with a moisture permeable film so as to enable the moisture to flow in a single direction, and when the humidity in the fresh keeping space is greater than the humidity outside the fresh keeping space, the moisture in the fresh keeping space flows out of the fresh keeping space through the moisture permeable film. That is to say, the moisture permeable film makes the moisture in the fresh-keeping space unidirectionally permeate to the outside of the fresh-keeping space through the moisture permeable film, so that the fresh-keeping space has the humidity meeting the requirement.

In order to improve the moisture permeation efficiency, an air supply device, such as an eddy fan or a centrifugal fan, can be arranged on the outer side of the upper cover 32, when the air supply device is opened, the flow of air outside the modified atmosphere preservation device 30 can be accelerated, particularly the flow of air outside the moisture permeation device, the air circulation near the moisture permeation device can be accelerated, the humidity value of the outer side of the modified atmosphere preservation device 30 can be reduced, the phenomenon that water vapor inside a preservation space cannot be discharged due to the fact that the efficiency of a moisture permeation film is reduced or the moisture permeation film fails completely is avoided, the moisture vapor generated by food materials is reduced from gathering inside to form condensation or frosting, meanwhile, the amount of the air inside a storage chamber can be distributed uniformly as soon as possible, and the intelligent and intelligent degree is high. Further, the modified atmosphere module 33 is preferably disposed on the front side of the moisture permeation device.

In some embodiments of the present invention, as shown in fig. 7, the air-extracting device comprises a vacuum pump having a pump head 91 with an outlet and a motor including a motor housing 92, and an exhaust pipe 93. An exhaust tube 93 is wound around the motor housing 92, and an inlet of the exhaust tube 93 communicates with an outlet of the pump on the pump head 91. Specifically the inlet of the exhaust pipe 93 communicates with the outlet of the pump through a flexible pipe 94. The flexible tube 94 may be a plastic tube. Specifically, the vacuum pump generates heat and concentrates on the motor part, that is to say the key position of cooling, at the pump of vacuum pump export with plastic pipe connection exhaust pipe 93, the cold air passes through exhaust pipe 93 and realizes the motor temperature reduction through temperature conduction, the high-speed air passes through exhaust pipe 93 and forces the convection current to realize the motor temperature reduction, through the extension total length of exhausting realize making an uproar.

Further, the air exhaust device also comprises a temperature control type heat conduction device. The temperature controlled heat transfer device may be a bi-metallic strip heat transfer device 95, and the motor housing 92 and the pump head 91 are both thermally connected to the bi-metallic strip heat transfer device 95. The temperature controlled heat conducting device is configured to transfer heat generated by the motor to the pump head 91, and to disconnect the heat transfer after the temperature of the pump head 91 reaches a preset temperature. By arranging the bimetallic strip heat conduction device 95, when the temperature of the pump head 91 is low, the pump head 91 is connected with the motor shell 92, and the pump head 91 is prevented from frosting and freezing by utilizing the high-temperature heating of the pump head 91; when the pump head 91 is hot, the heat transfer is disconnected, preventing that high temperature from continuing to heat the pump head 91 on the motor. After the temperature is reduced, the bimetal thermal device 95 is reset for heat transfer. The bimetallic strip heat conducting device 95 is utilized, so that the structure is simple, the cost is low, and the service life is long. Further, the motor shell 92 is directly used for cooling, the structures of the motor and the air exhaust device are not changed, the practicability is high, and the cost is low.

In some embodiments of the present invention, the exhaust pipe 93 is made of a heat conductive material, and the bimetallic strip heat conducting device 95 is thermally connected to the motor housing 92 through the exhaust pipe 93. Specifically, the exhaust pipe 93 includes an inlet pipe section, a winding pipe section, and an outlet pipe section, the inlet pipe section and the outlet pipe section being connected to both ends of the winding pipe section, the winding pipe section being wound around the motor case 92. The bimetallic strip heat conducting device 95 is thermally connected to the end of the outlet pipe section connected to the winding pipe section, i.e. the temperature-controlled heat conducting device is thermally connected to the motor housing 92 via the outlet end of the part of the exhaust pipe 93 wound around the motor housing 92. For example, the exhaust pipe 93 is provided with a metal plate 96, and the metal plate 96 is thermally connected to the bimetal thermal conduction device 95. The heat is transferred through the exhaust pipe 93, so that the temperature of the pump head 91 is not increased too fast or too high, the temperature of the pump head 91 is not changed frequently, the bimetallic strip heat conducting device 95 is not operated frequently, and the service life and the performance of the pump head 91 are not affected.

By arranging the temperature control type heat conduction device, when the temperature of the pump head is low, the pump head is prevented from frosting and freezing by utilizing high-temperature heating generated by the motor; when the pump head temperature is high, the heat transfer is disconnected, and the high temperature on the motor is prevented from continuously heating the pump head. The pump head can be prevented or frosted, the performance of the vacuum pump is guaranteed, and the reliability of the vacuum pump is prolonged. The pump mouth is connected the blast pipe, and the motor temperature reduction is realized through temperature conduction to the cold air through the blast pipe, and the motor temperature reduction is realized through blast pipe forced convection to the high-speed air, falls the noise through the realization of extension exhaust total length. The service life of the air exhaust device is prevented from being influenced by the overhigh temperature of the motor, the noise generated by the air exhaust device can be reduced, and the user experience effect is improved. The temperature control type heat conduction device can also prevent the heat dissipation effect of the motor from being influenced by continuously heating the pump head.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. The refrigerator comprises a refrigerator body, wherein a storage compartment is arranged in the refrigerator body, and the refrigerator is characterized by also comprising an air-conditioning fresh-keeping device, wherein the air-conditioning fresh-keeping device is provided with a drawer, an upper cover and an air-conditioning membrane assembly;

the drawer is provided with a fresh-keeping space with an upward opening and can be slidably arranged in the storage compartment along the front-back direction;

the upper cover is arranged at the opening of the fresh-keeping space in an openable and closable manner, and a sealing structure is arranged between the upper cover and the drawer, so that the fresh-keeping space is a closed space;

the modified atmosphere module is mounted to the upper cover and is configured to cause more oxygen in the fresh food space to flow out of the fresh food space through the modified atmosphere module relative to nitrogen therein.

2. The refrigerator according to claim 1,

the upper cover is positioned in the storage chamber and is arranged on the top wall of the storage chamber; alternatively, the first and second electrodes may be,

the upper cover extends and retracts along with the drawer.

3. The refrigerator according to claim 1,

the upper cover is disposed so as to be maintained at a current position as the drawer moves forward by a preset distance when the drawer is extended forward.

4. The refrigerator according to claim 1 or 3,

an air pipe bracket and a baffle plate positioned on one side of the air pipe bracket are arranged on the top wall of the storage compartment, and the baffle plate is vertically arranged and extends along the front-back direction;

the gas-regulating membrane component is connected with a gas pipe, the gas pipe is provided with a gas pipe section which is positioned on one side of the baffle plate, the side wall of the gas pipe support faces the gas pipe, one end of the gas pipe section is arranged at the front end of the side wall of the storage chamber, the other end of the gas pipe section is arranged on the upper surface of the upper cover, and the gas pipe section extends backwards from one end of the gas pipe section, is arranged on the gas pipe support and extends forwards to the other end of the gas pipe support.

5. The refrigerator according to claim 4,

the air pipe support comprises a cross rod, the cross rod extends in the front-back direction and is positioned above the upper cover, a clamping groove which penetrates through the cross rod in the left-right direction and is provided with an upward opening is formed in the rear end of the cross rod, and the front end and the rear end of the cross rod are connected to the top wall of the storage chamber through vertical rods;

the air pipe section penetrates through the clamping groove to be installed on the air pipe support.

6. The refrigerator according to claim 1 or 3,

the upper cover can be arranged on the drawer in a back-and-forth motion way;

the outer sides of the upper ends of the two side walls of the drawer are respectively provided with a first guide rail, and the two side walls of the storage compartment are provided with a second guide rail;

first supports are arranged on two sides of the front end of the upper cover, rollers matched with the first guide rail are arranged at the lower ends of the first supports, second supports are arranged on two sides of the rear end of the upper cover, and the lower ends of the second supports are matched with the second guide rail to move back and forth along the second guide rail.

7. The refrigerator according to claim 6,

the first guide rail defines a guide groove with an opening facing the outer side of the drawer, the guide groove extends along the horizontal direction, and the front end of the guide groove is provided with a downward bent abdicating groove;

the second guide rail is a liner rib.

8. The refrigerator according to claim 1 or 2,

the box body comprises an inner container, and the space in the inner container is the storage chamber;

the sealing structure is a sealing ring and is arranged on the lower surface of the upper cover.

9. The refrigerator according to claim 1, further comprising a flow path control device and two air extracting devices; the two air-conditioning fresh-keeping devices are arranged in the same storage room or respectively arranged in the two storage rooms; the two controlled atmosphere components are communicated with the two air extracting devices in a controlled manner through the flow path control device, so that any one of the controlled atmosphere components is communicated with the two air extracting devices through the flow path control device, or the two controlled atmosphere components are respectively communicated with the two air extracting devices through the flow path control device.

10. The refrigerator according to claim 1,

the preset storage temperature in the fresh-keeping space is-5 ℃ to 0 ℃;

the air-conditioning fresh-keeping device is connected with an air extraction device through an air pipe;

the air pumping device comprises a pump head with an outlet and a motor, the pump head and the motor are thermally connected through a temperature-controlled heat conduction device, the temperature-controlled heat conduction device is configured to transfer heat generated by the motor to the pump head, and the heat transfer is cut off after the temperature of the pump head reaches a preset temperature;

the upper cover is also provided with a moisture permeable device, and the moisture permeable device is provided with a moisture permeable film so that moisture in the fresh-keeping space can be unidirectionally permeated to the outer side of the fresh-keeping space through the moisture permeable film.

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