Refrigerator

Abstract

The application relates to the technical field of refrigeration equipment, in particular to a refrigerator. The refrigerator of the application can improve the preservation effect of a storage box by setting an air extraction device to extract air from the storage box. An elastic sealing sleeve is arranged between the air extraction joint and the connecting part of the air extraction device, the outer side of the elastic sealing sleeve is in interference fit with one side of the air extraction joint and the connecting part to realize elastic contact, and the inner side and the bottom side of the elastic sealing sleeve form a first gap. Under the action of the pressure difference between the inside and the outside of the air extraction joint, the outer side of the outer side can form a second gap, external air can enter the inside of the air extraction joint through the second gap and the first gap, the pressure inside and outside the air extraction joint is balanced, the air extraction joint is relieved of pressure, and thus the storage box can be separated from the air extraction joint. In this way, a pressure relief valve is not needed, the structure is simplified, the cost is reduced, the compactness of the air extraction device is improved, and the installation space is reduced.

Description

Technical Field

[0001] This application relates to the field of refrigeration equipment technology, and more particularly to a refrigerator. Background Technology

[0002] As the most commonly used appliance for food storage, refrigerators have become increasingly important in terms of food preservation. Some refrigerators are equipped with air extraction devices and vacuum storage boxes. The air extraction device removes air from the vacuum storage box, creating a vacuum environment inside and improving the food preservation effect.

[0003] In related technologies, a pressure relief valve is installed on the suction line of the suction device to relieve pressure on the suction line, release the vacuum state of the suction line, and facilitate the separation of the vacuum storage box from the suction device.

[0004] However, the installation of the pressure relief valve makes the air extraction device occupy a large space and has a complex structure. Utility Model Content

[0005] This application provides a refrigerator in which the air extraction device eliminates the need for a pressure relief valve, resulting in a compact structure and low cost.

[0006] This application provides a refrigerator, which includes:

[0007] The box-like structure forms a storage compartment;

[0008] A door, connected to the box body, is used to open or close the storage compartment;

[0009] A storage box, movably placed within the box body or the door; the storage box is provided with:

[0010] A vent is connected to the internal space of the storage box, and a one-way valve is installed in the vent. The one-way valve is configured to allow air in the storage box to flow outward in one direction only.

[0011] A connecting part is provided around the vent.

[0012] A vacuum device is configured to evacuate the storage box; the vacuum device includes:

[0013] An air pump with an air intake port;

[0014] An air extraction pipe, the two ends of which are respectively connected to the air extraction port and the air extraction connector;

[0015] The air extraction connector is detachably connected to the connecting part; an elastic sealing sleeve is provided between the air extraction connector and the connecting part.

[0016] The elastic sealing sleeve has an inner side, an outer side, and a bottom end face connected to one end of the inner side and the outer side. The outer side is configured to be interference-fitted with one of the air extraction connector and the connecting part.

[0017] The bottom side of the bottom end face and the inner side of the inner side face have a first gap, which communicates with the internal space of the air extraction connector; a portion of the outer side face is exposed to the atmosphere, and the elastic sealing sleeve is configured such that, under the action of the pressure difference between the inside and outside of the air extraction connector, a second gap is formed on the outer side of the outer side face, which communicates with the first gap, so that outside air enters the air extraction connector through the second gap and the first gap.

[0018] The refrigerator in this embodiment improves the preservation effect of the storage box by evacuating it using a vacuum device. The vacuum pump of the vacuum device is connected to a vacuum connector via a vacuum pipe, and the connection between the vacuum connector and the storage box is detachable. An elastic sealing sleeve is provided between the vacuum connector and the connection. The elastic sealing sleeve only has an outer surface that is press-fitted with one side of the vacuum connector and the connection, achieving elastic contact. A first gap is formed between the inner and bottom surfaces of the elastic sealing sleeve. Under the pressure difference between the inside and outside of the vacuum connector, a second gap can be formed on the outer side of the outer surface. Outside air can enter the vacuum connector through the second gap and the first gap, balancing the pressure inside and outside the vacuum connector and relieving pressure on the vacuum connector, thereby separating the storage box from the vacuum connector. This design eliminates the need for an additional pressure relief valve, simplifying the structure, improving production efficiency, reducing costs, and also improving the structural compactness of the vacuum device, reducing installation space requirements.

[0019] In some embodiments of this application, the air extraction connector is configured to form a mounting ring;

[0020] The elastic sealing sleeve is fitted over the mounting ring;

[0021] When the air extraction connector is connected to the connecting part, the outer side surface makes elastic contact with the connecting part.

[0022] In this embodiment, an elastic sealing sleeve is fitted onto the mounting ring of the vacuum connector to fix the elastic sealing sleeve, and the outer surface of the elastic sealing sleeve makes elastic contact with the connecting part. Thus, when using the vacuum connector to evacuate different storage boxes or other containers, no additional sealing structure is required, which helps reduce costs.

[0023] In some embodiments of this application, the connecting portion includes:

[0024] The inner ring is connected to the storage box, and the vent is located inside the inner ring.

[0025] The outer ring portion is connected to the storage box and is spaced out on the outside of the inner ring portion; the outer ring portion, the inner ring portion, and the storage box form a mating groove;

[0026] A portion of the elastic sealing sleeve is inserted into the mating groove; when the air extraction connector is connected to the connecting part, the outer side surface and the inner ring surface of the outer ring part are interference-fitted; under the action of the pressure difference between the inside and outside of the air extraction connector, the outer side surface and the inner ring surface of the outer ring part are constructed to form the second gap; the inner side surface and the outer ring surface of the inner ring part form the first gap, and the bottom end surface and the storage box form the first gap.

[0027] In this embodiment, the connecting part forms a mating groove by setting an inner ring and an outer ring, which provides guidance and positioning for the elastic sealing sleeve to be inserted into the mating groove, making the connection between the air extraction connector and the connecting part more accurate.

[0028] In some embodiments of this application, when the air extraction connector is connected to the connecting portion, there is a gap between the mounting ring and the outer ring portion along the axial direction of the mounting ring.

[0029] There is a gap between the bottom end of the mounting ring and the top end of the outer ring, which allows part of the elastic sealing sleeve to be exposed to the atmosphere; it also allows part of the elastic sealing sleeve to be suspended relative to the mounting ring and the outer ring, so that it can be deformed under atmospheric pressure to form a second gap.

[0030] In some embodiments of this application, the air extraction connector is further configured to form an outer ring portion, the outer ring portion being sleeved on the outside of the mounting ring, and there is a receiving gap between the outer ring portion and the mounting ring, so that a portion of the elastic sealing sleeve is located within the receiving gap;

[0031] When the air extraction connector is connected to the connecting part, there is a gap between the outer ring part and the outer ring part along the axial direction of the mounting ring.

[0032] In this embodiment, the vacuum connector forms an outer ring portion outside the mounting ring, creating a receiving gap. This allows a portion of the elastic sealing sleeve to be located within the receiving gap, improving the reliability of the connection between the elastic sealing sleeve and the vacuum connector. Furthermore, the gap between the outer ring portions allows a portion of the elastic sealing sleeve to be exposed to the atmosphere, facilitating its resistance to atmospheric pressure.

[0033] In some embodiments of this application, the inner ring surface of the outer ring portion is formed as follows:

[0034] The first inclined surface is inclined away from the inner ring portion along the axial direction of the outer ring portion and away from the storage box.

[0035] The first cylindrical surface is located on the side of the first inclined surface facing the storage box;

[0036] The outer surface of the elastic sealing sleeve includes:

[0037] The second inclined surface, when the air extraction connector is connected to the connecting part, is interference-fitted with the first inclined surface, and a portion of the second inclined surface is exposed to the atmosphere;

[0038] When the air extraction connector is connected to the connecting part, the second cylindrical surface is interference-fitted with the first cylindrical surface.

[0039] The outer ring and the elastic sealing sleeve are connected by an interference fit between the first and second inclined surfaces, allowing for elastic contact between them. This results in both horizontal and vertical forces acting on the outer ring and the elastic sealing sleeve, which helps improve the relative sealing performance between them. Furthermore, the design of the first and second inclined surfaces simplifies the connection between the elastic sealing sleeve and the outer ring.

[0040] In addition to the interference fit between the first and second inclined surfaces, the outer ring and the elastic sealing sleeve also have an interference fit between the first and second cylindrical surfaces, which makes the contact surface between the outer ring and the elastic sealing sleeve bendable, which helps to improve the sealing performance.

[0041] In some embodiments of this application, the air extraction device is installed on the door body;

[0042] A first shelf is installed on the door body, and the first shelf is constructed to form an accommodating space with an opening at the top.

[0043] The air extraction connector is installed above the first shelf;

[0044] The storage box can be selectively placed in the first shelf; when the storage box is placed in the first shelf, the air extraction connector can be selectively connected to the connecting part of the storage box.

[0045] In this embodiment, the air extraction device is installed in the door, which does not occupy the storage space inside the cabinet. Moreover, the first shelf can both support the storage box and store items, which helps to increase the effective volume of the refrigerator.

[0046] In some embodiments of this application, an elastic cushioning pad is provided between the storage box and the bottom wall of the first shelf.

[0047] The elastic cushioning pads allow for elastic contact between the storage box and the first shelf, effectively reducing shock and noise.

[0048] In some embodiments of this application, the bottom wall of the first shelf is provided with a mounting through hole, and the elastic buffer pad is installed in the mounting through hole;

[0049] The bottom of the storage box is provided with protruding support feet, which are in contact with the elastic cushioning pad.

[0050] It can achieve elastic contact between the storage box and the bottom wall, and can also position the storage box within the first shelf.

[0051] In some embodiments of this application, the air extraction connector is rotatably mounted on the door body, and the storage box is mounted on the door body and located below the air extraction connector;

[0052] When the air extraction connector is rotated from a vertical position to a horizontal position, the air extraction connector is connected to the connecting part.

[0053] In this embodiment, the air extraction connector is rotatably mounted on the door, allowing it to rotate between a vertical disconnected position and a horizontal connected position. This simplifies the connection and disconnection of the air extraction connector and the storage box. Furthermore, the connection is achieved through a butt joint between the air extraction connector and the connecting part, without other limiting mechanisms. This facilitates sealing between the air extraction connector and the connecting part and allows for pressure relief using an elastic sealing sleeve. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the structure of an air extraction device in related technologies;

[0055] Figure 2 This application provides schematic diagrams of the structure of a refrigerator for some embodiments.

[0056] Figure 3 This application provides connection state structural diagrams of the air extraction device installed on the door body for some embodiments;

[0057] Figure 4 Exploded views of the door and exhaust device provided in some embodiments of this application;

[0058] Figure 5 Cross-sectional schematic diagram of a storage box provided for some embodiments of this application;

[0059] Figure 6 This application provides structural diagrams showing the separation state of an air extraction device disposed on a door body for some embodiments;

[0060] Figure 7 A front view of the connection state of the air extraction device installed on the door body is provided for some embodiments of this application;

[0061] Figure 8 for Figure 7AA section view in the middle;

[0062] Figure 9 for Figure 8 An enlarged schematic diagram of region P in the diagram;

[0063] Figure 10 A cross-sectional view of the connection between the air extraction connector and the elastic sealing sleeve provided in some embodiments of this application;

[0064] Figure 11 Exploded cross-sectional views of the air extraction connector and elastic sealing sleeve provided in some embodiments of this application;

[0065] Figure 12 This is a force analysis diagram of the elastic sealing sleeve and the connecting part in some embodiments of this application;

[0066] Figure 13 A cross-sectional view of a storage box and a first shelf provided for some embodiments of this application.

[0067] Explanation of reference numerals in the attached figures:

[0068] 10: Suction pump; 20: Connector; 30: Air hose; 40: Pressure relief valve; 50: Storage container;

[0069] 100: Box body; 101: Storage compartment; 200: Door; 210: Fastener; 220: First shelf; 221: Elastic cushioning pad; 230: Second shelf;

[0070] 300: Storage box; 310: Box body; 320: Lid; 321: Vent; 322: Support leg; 330: Connecting part; 331: Inner ring; 332: Outer ring; 333: First gap; 334: Fitting groove; 340: One-way valve;

[0071] 400: Air extraction device; 410: Air pump; 420: Air extraction pipe; 430: Air extraction connector; 431: First housing; 432: Second housing; 433: Airflow channel; 434: Sealing ring; 435: First magnetic component; 436: Connector; 437: Mounting ring; 438: Outer ring; 4381: Receiving gap;

[0072] 500: Elastic sealing sleeve; 510: Outer surface; 511: Second inclined surface; 512: Second cylindrical surface; 520: Inner surface; 530: Bottom end surface; 540: Fixing part; 541: Inner wall part; 542: Outer wall part; 543: Groove part; 550: Sealing part. Detailed Implementation

[0073] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0074] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0075] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0076] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0077] As the most commonly used household appliance for food storage, refrigerators are seeing increasing demands from consumers for better food preservation. Some refrigerators incorporate vacuum preservation technology. In a vacuum environment, the growth of microorganisms is slowed, oxygen levels are low, and various chemical reactions are minimal or even impossible, thus extending the shelf life of food.

[0078] Some refrigerators have airtight drawers that use a vacuum pump to evacuate air from, maintaining a negative pressure state and keeping food inside fresh. However, the drawer pump is located in the refrigerator compartment, taking up storage space; furthermore, the airtight drawers are complex in shape and structure and cannot be moved easily, making it inconvenient to handle vacuum-preserved items.

[0079] Combination Figure 1Some refrigerators are equipped with a storage container 50 and a vacuum device, which is used to evacuate the storage container 50. The vacuum device includes a suction pump 10, an air hose 30, and a connector 20, which is detachably connected to the storage container 50. When the connector 20 is connected to the storage container 50, the suction pump 10 creates a vacuum in the storage container 50 through the air hose 30 and connector 20. At this time, the connector 20 and air hose 30 also have a low-pressure environment. To facilitate the removal of the storage container 50, a pressure relief valve 40 is installed on the air hose 30. The pressure relief valve 40 releases pressure from the air hose 30 and connector 20, eliminating the vacuum and facilitating the separation of the storage container 50 from the vacuum device. However, the inclusion of the pressure relief valve 40 results in a large installation space and a complex structure for the vacuum device.

[0080] The researchers of this application considered how to eliminate the pressure relief valve 40 while still providing pressure relief for the air tube 30 and connector 20. Their initial thought was to create a pressure relief gap in the air tube 30 or connector 20. However, creating an additional pressure relief gap would affect the pumping efficiency.

[0081] To ensure efficient air extraction, a sealing ring is provided at the connector 20 to guarantee the airtight connection between the connector 20 and the storage container 50. This application innovatively utilizes the pressure difference inside the sealing ring to deform it, creating a pressure relief gap at the sealing surface. This gap allows external air to enter the sealing ring, reducing the pressure difference between the inside and outside of the connector 20 and thus achieving pressure relief. This makes separating the storage container 50 from the air extraction connector 20 easier and less strenuous.

[0082] Moreover, omitting the pressure relief valve 40 not only helps reduce costs but also simplifies the structure and reduces the space required for the installation of the air extraction device.

[0083] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0084] Combination Figure 2 Some embodiments of this application provide a refrigerator, which includes a cabinet 100, which can be configured to form a storage compartment 101 with an access opening for storing items.

[0085] Multiple storage compartments 101 can be provided to expand storage space. Depending on the storage temperature of the storage compartments 101, they can include at least one refrigerated compartment and at least one frozen compartment. The internal temperature of the refrigerated compartment can be maintained between approximately 0°C and 5°C for storing items in refrigeration mode; the internal temperature of the frozen compartment can be maintained between approximately -30°C and 0°C for storing items in freezing mode.

[0086] In some possible implementations, at least one of the storage chambers 101 may also be configured as a vacuum chamber or a variable temperature chamber, etc., which will not be described in detail in the embodiments of this application.

[0087] For example, two storage compartments 101 can be provided, which can be stacked vertically or arranged side by side horizontally. One of them can be a refrigerator compartment and the other can be a freezer compartment.

[0088] The refrigerator in this embodiment may further include a refrigeration system for reducing the air temperature in the storage compartment 101. Exemplarily, the refrigeration system may be housed within the cabinet 100. The refrigeration system may include a compressor, condenser, expansion valve, and evaporator connected in a cycle.

[0089] During refrigeration system operation, the compressor compresses refrigerant vapor to generate high-temperature, high-pressure refrigerant vapor, which is then transported to the condenser. The condenser liquefies the high-temperature, high-pressure refrigerant vapor, generating high-temperature, low-pressure refrigerant liquid, which is then transported to the expansion valve. The expansion valve reduces the pressure of the refrigerant liquid, transforming the high-pressure, low-temperature refrigerant liquid into a low-pressure, low-temperature refrigerant liquid, which is then transported to the evaporator. The evaporator receives the low-pressure, low-temperature refrigerant liquid and boils it under isobaric conditions, absorbing heat and vaporizing to form refrigerant vapor, thereby lowering the temperature inside storage compartment 101.

[0090] Continue to refer to Figure 2 The refrigerator in this embodiment may further include a door 200, which is rotatably connected to the cabinet 100 to open or close the access port. Exemplarily, the door 200 and the cabinet 100 are hinged together.

[0091] Each storage room 101 may be provided with one door 200; or, each storage room 101 may be provided with two doors 200, which may rotate in opposite directions to open or close the storage room 101.

[0092] Of course, in some possible implementations, the storage compartment 101 is provided with drawers, and the outer end of the drawers forms a door 200.

[0093] The refrigerator in this embodiment also has a vacuum preservation function, which is achieved through a storage box 300. The storage box 300 can be movably placed on the cabinet 100 or the door 200, facilitating the transfer of the storage box 300 and making its use more convenient.

[0094] The refrigerator in this embodiment may further include a vacuum device 400, which is configured to evacuate the storage box 300, creating a vacuum state inside the storage box 300. Note that the "vacuum" in this embodiment is not an absolute vacuum, but rather a low-pressure state, to improve the preservation effect of the storage box 300. For example, the vacuum degree of the storage box 300 can be 0.6 MPa to 0.9 MPa.

[0095] Combination Figure 3 and Figure 4 An air extraction device 400 is installed on the door 200 to reduce the space occupied by the air extraction device 400 in the storage compartment 101. Furthermore, a storage box 300 is provided on the door 200 to support the storage box 300. After vacuuming, the storage box 300 can detach from the support structure and move to another location.

[0096] Of course, in some implementations, the air extraction device 400 can be installed in the housing 100.

[0097] Combination Figure 5 The storage box 300 may include a box body 310 and a lid 320, which are detachably connected. For example, the box body 310 and the lid 320 are engaged by snap-fit ​​connections, a simple and reliable method. The box body 310 and the lid 320 together form a storage cavity.

[0098] A connecting portion 330 is formed on the lid 320 of the storage box 300, and the connecting portion 330 is detachably connected to the vacuum device 400. When the connecting portion 330 is connected to the vacuum device 400, the vacuum device 400 can evacuate the storage box 300. The connecting portion 330 can also be separated from the vacuum device 400, allowing the storage box 300 to be moved from the vacuumed position to other positions. The connecting portion 330 is annular to facilitate connection with the vacuum device 400.

[0099] A vent 321 may also be formed on the lid 320 of the storage box 300, and a connecting part 330 is arranged around the vent 321. The vent 321 communicates with the internal space of the storage box 300, so that the air inside the storage box 300 can be drawn away by the vacuum device 400 through the vent 321, thereby creating a low-pressure vacuum state inside the storage box 300.

[0100] In this embodiment, a one-way valve 340 is installed in the vent 321. The one-way valve 340 is configured to allow air in the storage box 300 to flow outward in one direction only.

[0101] Continue to refer to Figure 5 The air extraction device 400 of this application embodiment includes an air extraction pump 410, which has an air extraction port for connecting to an air extraction pipe 420. Exemplarily, the air extraction pump 410 is installed at the top inside the door body 200.

[0102] The air extraction device 400 may also include an air extraction pipe 420, the two ends of which are connected to an air extraction port and an air extraction connector 430, respectively. A fixing member 210 may also be provided inside the door body 200 for fixing the air extraction pipe 420.

[0103] The vacuum device 400 may further include a vacuum connector 430, which is detachably connected to the connecting part 330. When the vacuum connector 430 is connected to the connecting part 330, the vacuum pump 410 can evacuate the storage box 300 through the vacuum pipe 420 and the vacuum connector 430. When the vacuum connector 430 is disconnected from the connecting part 330, the storage box 300 can be moved to another location.

[0104] In the embodiments of this application, combined with Figures 7 to 9 An elastic sealing sleeve 500 is provided between the air extraction connector 430 and the connecting part 330 to improve the sealing performance between the air extraction connector 430 and the connecting part 330, reduce the amount of air leakage between the air extraction connector 430 and the connecting part 330 when the air extraction pump 410 is pumping air, and improve the air extraction efficiency.

[0105] For example, the elastic sealing sleeve 500 can be a silicone sealing sleeve, a rubber sealing sleeve, etc.

[0106] In some embodiments, the elastic sealing sleeve 500 can be fixed to the connecting portion 330, and the elastic sealing sleeve 500 elastically abuts against the air extraction connector 430 to achieve a seal between the air extraction connector 430 and the connecting portion 330.

[0107] In other embodiments, the elastic sealing sleeve 500 can be fixed to the vacuum connector 430, and the elastic sealing sleeve 500 elastically abuts against the connecting part 330 to achieve a seal between the vacuum connector 430 and the connecting part 330. With this configuration, when using the vacuum connector 430 to evacuate different storage boxes 300 or other containers, there is no need to set up an additional sealing structure, which helps to reduce costs.

[0108] In some embodiments of this application, the air extraction connector 430 is rotatably mounted on the door 200, and the storage box 300 is mounted on the door 200 and located below the air extraction connector 430. When the air extraction connector 430 is rotated from a vertical state to a horizontal state, the air extraction connector 430 is connected to the connecting part 330.

[0109] The exhaust device 400 may further include a mounting base fixed to the side of the door 200 facing the storage compartment 101. An exhaust connector 430 is rotatably connected to the mounting base, and the rotation axis of the exhaust connector 430 and the mounting base is parallel to the width direction of the door 200 (corresponding to...). Figure 3 (The X-axis in the diagram). Therefore, the suction connector 430 can be rotated downwards to a horizontal position, as shown. Figure 3 As shown, this allows the vacuum connector 430 to connect with the connecting part 330 of the storage box 300; the vacuum connector 430 can be rotated upwards to a vertical position, as shown. Figure 6 As shown, this disconnects the connection between the air extraction connector 430 and the connecting part 330.

[0110] In this embodiment, the air extraction connector 430 is rotatably mounted on the door 200, allowing it to rotate between a vertical disconnected position and a horizontal connected position. This simplifies the connection and disconnection between the air extraction connector 430 and the connection portion 330 of the storage box 300. Furthermore, the connection is achieved through a butt joint between the air extraction connector 430 and the connection portion 330, without other limiting mechanisms. This facilitates sealing between the air extraction connector 430 and the connection portion 330 and allows for pressure relief using the elastic sealing sleeve 500.

[0111] Reference Figure 10 and Figure 11 In some embodiments of this application, the air extraction connector 430 includes a first shell 431 and a second shell 432, which are fixedly connected to form an airflow channel 433.

[0112] For example, the first shell 431 and the second shell 432 are fixedly connected by screws, and a sealing ring 434 is provided between the first shell 431 and the second shell 432, thereby achieving a sealed connection between the first shell 431 and the second shell 432.

[0113] When the air extraction connector 430 is rotated to a vertical position, the second shell 432 is closer to the door body 200 relative to the first shell 431. The second shell 432 is provided with a first magnetic element 435, which is magnetically attracted to the second magnetic element provided on the door body 200, so that the air extraction connector 430 can be kept in a vertical position.

[0114] In some embodiments, a connector 436 is provided on the second housing 432, and the connector 436 is connected to the airflow channel 433 and the air extraction pipe 420.

[0115] Combination Figure 8 and Figure 9The elastic sealing sleeve 500 has an inner side 520, an outer side 510, and a bottom end face 530 connected to one end of the inner side 520 and the outer side 510. The inner side 520 and the outer side 510 are opposite each other in the radial direction of the elastic sealing sleeve 500.

[0116] The outer surface 510 is configured to elastically contact one of the air extraction connector 430 and the connecting part 330, thereby sealing the air extraction connector 430 and the connecting part 330.

[0117] The bottom side of the bottom surface 530 and the inner side of the inner surface 520 have a first gap 333, which communicates with the internal space of the air extraction connector 430. Part of the outer surface 510 is exposed to the atmosphere, so that atmospheric pressure can act on the elastic sealing sleeve 500 through the outer surface 510. The elastic sealing sleeve 500 is configured to form a second gap on the outer side of the outer surface 510 under the action of the pressure difference inside and outside the air extraction connector 430. The second gap communicates with the first gap 333, so that outside air enters the air extraction connector 430 through the second gap and the first gap 333, thereby reducing the air pressure in the air extraction connector 430 and the air extraction pipe 420. This allows the storage box 300 to be removed from the air extraction connector 430, so that the air extraction connector 430 can be rotated to a vertical position for storage, and the storage box 300 can be moved from the air extraction position to another position.

[0118] The outer surface 510 is partially exposed to the atmosphere; this can be understood as the outer side of the air extraction connector 430 being the "atmosphere." When the air extraction device 400 is installed on the door 200 and the door 200 is closed, the outer surface 510 is partially exposed to the interior space of the refrigerator. Air inside the refrigerator enters the air extraction connector 430 through the second gap and the first gap 333.

[0119] The inner side of the inner side 520 refers to the side of the inner side 520 that is away from the outer side 510; the outer side of the outer side 510 refers to the side that is away from the inner side 520.

[0120] Continue to refer to Figures 9 to 11 In some embodiments of this application, the air extraction connector 430 is configured to form a mounting ring 437. The mounting ring 437 is formed on the side of the first housing 431 opposite to the second housing 432. The mounting ring 437 is annular, and the port of the airflow channel 433 is located within the mounting ring 437.

[0121] The elastic sealing sleeve 500 is fitted over the mounting ring 437, thereby allowing the elastic sealing sleeve 500 to be fixed to the mounting ring 437.

[0122] The elastic sealing sleeve 500 may include a fixing part 540 and a sealing part 550, with the sealing part 550 disposed at one end of the fixing part 540. The fixing part 540 is sleeved on the outside of the mounting ring 437. The sealing part 550 is suspended relative to the mounting ring 437 for elastic contact with the connecting part 330.

[0123] The fixing portion 540 may include an inner wall portion 541 and an outer wall portion 542, with the outer wall portion 542 spaced apart from the outer side of the inner wall portion 541. The sealing portion 550 is fixed to one end of the outer wall portion 542 and the inner wall portion 541. Thus, the inner wall portion 541, the outer wall portion 542, and the sealing portion 550 together form a groove portion 543 with one end open. The mounting ring 437 is inserted into the groove portion 543 to achieve a fixed connection between the elastic sealing sleeve 500 and the mounting ring 437.

[0124] For example, the elastic sealing sleeve 500 is interference-fitted with the mounting ring 437, and the connection method is simple.

[0125] For example, the elastic sealing sleeve 500 and the mounting ring 437 are bonded together with adhesive, and the connection is stable.

[0126] When the air extraction connector 430 is connected to the connecting part 330, the outer side 510 of the elastic sealing sleeve 500 is in elastic contact with the connecting part 330, and the relative sealing installation ring 437 and the connecting part 330 are sealed when the storage box 300 is evacuated.

[0127] In this embodiment, the elastic sealing sleeve 500 is fitted onto the mounting ring 437 of the vacuum connector 430, thereby fixing the elastic sealing sleeve 500. The outer surface 510 of the elastic sealing sleeve 500 is in elastic contact with the connecting portion 330. Thus, when using the vacuum connector 430 to evacuate different storage boxes 300 or other containers, no additional sealing structure is required, which helps to reduce costs.

[0128] Continue to refer to Figure 9 In some embodiments of this application, the connecting portion 330 may include an inner ring portion 331, which is connected to the storage box 300, and a vent 321 is located inside the inner ring portion 331. The inner ring portion 331 is connected to the box lid. Exemplarily, the inner ring portion 331 and the box lid are integrally formed, resulting in a stable structure and good sealing performance. The inner ring portion 331 has opposing inner and outer ring surfaces, with the diameter of the outer ring surface being larger than the diameter of the inner ring surface. The inner ring surface is closer to the center of the inner ring portion 331 than the outer ring surface.

[0129] The connecting portion 330 may further include an outer ring portion 332, which is connected to the storage box 300 and is spaced out on the outside of the inner ring portion 331; the outer ring portion 332, the inner ring portion 331, and the storage box 300 form a mating groove 334. The outer ring portion 332 is connected to the box lid. Exemplarily, the outer ring portion 332 and the box lid are integrally formed, resulting in a stable structure and good sealing performance. The outer ring portion 332, the inner ring portion 331, and the box lid surround and form the mating groove 334. The outer ring portion 332 has opposing inner and outer ring surfaces, with the diameter of the outer ring surface being larger than the diameter of the inner ring surface. The mating groove 334 is formed between the inner ring surface of the outer ring portion 332 and the outer ring surface of the inner ring portion 331.

[0130] A portion of the elastic sealing sleeve 500 is inserted into the mating groove 334, wherein a portion of the sealing part 550 of the elastic sealing sleeve 500 is inserted into the mating groove 334.

[0131] When the vacuum connector 430 is connected to the connecting part 330, the outer surface 510 and the inner ring surface of the outer ring part 332 are interference-fitted, thereby allowing elastic contact between the outer surface 510 and the inner ring surface of the outer ring part 332. A first gap 333 is formed between the inner surface 520 and the outer ring surface of the inner ring part 331, and a first gap 333 is also formed between the bottom end surface 530 and the storage box 300. Under the action of the pressure difference between the inside and outside of the vacuum connector 430, a second gap is formed between the outer surface 510 and the inner ring surface of the outer ring part 332.

[0132] In this embodiment, the connecting portion 330 forms a mating groove 334 by providing an inner ring portion 331 and an outer ring portion 332, which provides guidance and positioning for the elastic sealing sleeve 500 to be inserted into the mating groove 334, making the connection between the air extraction connector 430 and the connecting portion 330 more accurate.

[0133] Continue to refer to Figure 9 In some embodiments of this application, when the air extraction connector 430 is connected to the connecting portion 330, there is a gap between the mounting ring 437 and the outer ring portion 332 along the axial direction of the mounting ring 437.

[0134] exist Figure 9 In the orientation shown, along the Z-axis, there is a gap between the bottom end of the mounting ring 437 and the top end of the outer ring 332, so that a portion of the elastic sealing sleeve 500 is exposed to the atmosphere; it also allows a portion of the elastic sealing sleeve 500 to be suspended relative to the mounting ring 437 and the outer ring 332, so that it can be deformed under atmospheric pressure to form a second gap.

[0135] Combination Figures 9 to 11In some embodiments of this application, the air extraction connector 430 is further configured to form an outer ring portion 438, which is disposed on the first housing 431. The outer ring portion 438 is sleeved on the outside of the mounting ring 437, and there is a receiving gap 4381 between the outer ring portion 438 and the mounting ring 437, so that a portion of the resilient sealing sleeve 500 is located within the receiving gap 4381. The outer wall portion 542 of the resilient sealing sleeve 500 is located within the receiving gap 4381.

[0136] When the air extraction connector 430 is connected to the connecting part 330, there is a gap between the outer ring part 438 and the outer ring part 332 along the axial direction of the mounting ring 437.

[0137] exist Figure 9 In the orientation shown, along the Z-axis, there is a gap between the bottom end of the outer ring 438 and the top end of the outer ring 332, so that part of the elastic sealing sleeve 500 is exposed to the atmosphere, which is beneficial for withstanding atmospheric pressure.

[0138] In this embodiment, the vacuum connector 430 forms an outer ring portion 438 on the outside of the mounting ring 437, creating a receiving gap 4381. This allows a portion of the elastic sealing sleeve 500 to be located within the receiving gap 4381, improving the reliability of the connection between the elastic sealing sleeve 500 and the vacuum connector 430. Furthermore, the gap between the outer ring portion 438 and the outer ring portion 332 allows a portion of the elastic sealing sleeve 500 to be exposed to the atmosphere, facilitating its resistance to atmospheric pressure.

[0139] Combination Figure 9 and Figure 11 In some implementations of this application, the inner ring surface of the outer ring portion 332 is formed with a first inclined surface and a first cylindrical surface. The first inclined surface is along the axial direction of the outer ring portion 332 and away from the storage box 300. The first inclined surface is inclined away from the inner ring portion 331. The first cylindrical surface is located on the side of the first inclined surface facing the storage box 300.

[0140] exist Figure 9 In the orientation shown, along the positive direction of the Z-axis, the first inclined surface is located above the first cylindrical surface, and the first inclined surface is inclined outward away from the inner ring 331.

[0141] The outer surface 510 of the elastic sealing sleeve 500 includes: a second inclined surface 511 and a second cylindrical surface 512; wherein, the second inclined surface 511 and the second cylindrical surface 512

[0142] When the second inclined surface 511 is connected to the air extraction connector 430 and the connecting part 330, the second inclined surface 511 is in an interference fit with the first inclined surface, and a portion of the second inclined surface 511 is exposed to the atmosphere. When the second cylindrical surface 512 is connected to the air extraction connector 430 and the connecting part 330, the second cylindrical surface 512 is in an interference fit with the first cylindrical surface.

[0143] Combination Figure 12 The outer ring portion 332 and the elastic sealing sleeve 500 are connected by an interference fit between the first inclined surface and the second inclined surface 511, allowing for elastic contact between them. This results in the outer ring portion 332 and the elastic sealing sleeve 500 being subjected to forces F1 in the horizontal direction and F2 in the vertical direction, which helps to improve the relative sealing performance between them. Furthermore, the design of the first and second inclined surfaces 511 simplifies the connection between the elastic sealing sleeve 500 and the outer ring portion 332.

[0144] In addition, besides the interference fit between the first inclined surface and the second inclined surface 511, the outer ring portion 332 and the elastic sealing sleeve 500 also have an interference fit between the first cylindrical surface and the second cylindrical surface 512, which makes the contact surface between the outer ring portion 332 and the elastic sealing sleeve 500 bendable, which helps to improve the sealing performance.

[0145] When the air extraction connector 430 is rotated to a horizontal position and connected to the connecting part 330, the outer surface 510 of the elastic sealing sleeve 500 is press-fitted with the connecting part 330 by adjusting its structure, size, and position, thus allowing the outer surface 510 to elastically contact the connecting part 330. There is elastic force and static friction between the outer surface 510 and the connecting part 330. Because the inner surface 520 has a first gap 333, if the air pump 410 does not extract air from the storage box 300, the press-fit between the elastic sealing sleeve 500 and the connecting part 330 gradually separates, forming a clearance fit. This is because there is no mechanical locking structure between the air extraction connector 430 and the connecting part 330; relying solely on elastic force and friction, it is easily broken by minor movements or vibrations of the storage box 300, thus disrupting the balance and causing the press-fit between the elastic sealing sleeve 500 and the connecting part 330 to gradually separate.

[0146] Continue to refer to Figure 12 When the vacuum connector 430 is rotated to a horizontal position and connected to the connecting part 330, the outer surface 510 of the elastic sealing sleeve 500 is press-fitted with the outer ring part 332. The vacuum pump 410 evacuates the storage box 300 through the vacuum pipe 420 and the vacuum connector 430, creating a low-pressure vacuum state inside the storage box 300. After the vacuum pump 410 is turned off, the outer side of the sealing part 550 of the elastic sealing sleeve 500 is at atmospheric pressure, while the inner side is at low pressure, resulting in a pressure difference between the inner and outer sides of the sealing part 550. Under the action of this pressure difference, the sealing part 550 withstands F 压 Because the elastic sealing sleeve 500 is interference-fitted with the outer ring 332, the elastic sealing sleeve 500 is also subjected to an elastic force F. 弹 The horizontal component of the force is F1 = F 弹sinβ, the vertical component of the force F2 = F 弹 cosβ. Furthermore, atmospheric pressure acts simultaneously on both the pump head and the storage box 300, resulting in static friction between the elastic sealing sleeve 500 and the outer ring 332. Due to the relatively large pressure difference between the inner and outer parts of the sealing portion 550 of the elastic sealing sleeve 500, F 压 The pressure is greater than F1, causing the sealing part 550 to deform inward and / or move, thereby separating the first inclined surface from the second inclined surface 511 and the first cylindrical surface from the second cylindrical surface 512. A second gap is formed between the outer side surface 510 and the inner ring surface of the outer ring part 332. The second gap communicates with the internal space of the air extraction connector 430 through the first gap 333, allowing external air to enter the interior of the air extraction connector 430. This gradually balances the pressure on the inner and outer sides of the air extraction connector 430, relieving pressure on the air extraction connector 430 and the air extraction pipe 420. Moreover, as external air enters the interior of the air extraction connector 430, the static friction between the elastic sealing sleeve 500 and the outer ring part 332 decreases.

[0147] During this process, since the elastic sealing sleeve 500 only has an interference fit with the outer ring 332 on the outer side, a first gap 333 is formed on both the bottom and inner sides. This makes the seal between the elastic sealing sleeve 500 and the connecting part 330 unstable. When subjected to a small external force or vibration, the interference fit between the elastic sealing sleeve 500 and the outer ring 332 can be destroyed, forming a second gap.

[0148] It should be noted that during the suction process of the vacuum pump 410 on the storage box 300, even if there is a second gap between the elastic sealing sleeve 500 and the outer ring 332, the impact on the suction of the storage box 300 is relatively small. After the suction is completed, the vacuum degree of the storage box 300 will not be affected because the storage box 300 is equipped with a one-way valve 340.

[0149] In this embodiment, pressure relief is achieved by creatively utilizing the fit between the elastic sealing sleeve 500, which should provide a stable seal, and the connecting part 330. The elastic sealing sleeve 500 only has an interference fit with the connecting part 330 on its outer side. A first gap 333 is formed on the bottom and inner sides of the elastic sealing sleeve 500, respectively. This gap makes the interference fit of the elastic sealing sleeve 500 unstable, and the pressure difference between the inside and outside creates a second gap between the outer side of the elastic sealing sleeve 500 and the connecting part 330. Thus, the outside atmosphere communicates with the inside of the air extraction connector 430 through the second gap and the first gap 333, achieving pressure relief. This eliminates the need for an additional pressure relief valve or additional pressure relief and sealing structures, simplifying the structure, improving assembly efficiency, and reducing costs.

[0150] Combination Figure 3In some embodiments of this application, an air extraction device 400 is installed on a door body 200; a first shelf 220 is installed on the door body 200, and the first shelf 220 is configured to form a receiving space with an opening at the top.

[0151] The air extraction connector 430 is installed above the first shelf 220.

[0152] The storage box 300 can be selectively placed inside the first shelf 220; when the storage box 300 is placed inside the first shelf 220, the air extraction connector 430 can be selectively connected to the connecting part 330 of the storage box 300.

[0153] To facilitate the retrieval of the storage box 300 from the first shelf 220, the first shelf 220 can be positioned at a lower position on the door 200, for example, the first shelf 220 can be located below the middle height of the door 200.

[0154] A second shelf 230 can also be installed on the door body 200. The second shelf 230 is a storage shelf provided on the door body 200. The height of the second shelf 230 can be greater than that of the first shelf 220. Therefore, the height of the first shelf 220 is smaller, which facilitates the retrieval and placement of the storage box 300. Along the thickness direction of the door body 200, the dimensions of the second shelf 230 are the same as those of the first shelf 220, making the door body 200 have a regular appearance.

[0155] In some embodiments, along the thickness direction of the door 200, the outer dimension L1 of the storage box 300 is smaller than the inner dimension L2 of the first shelf 220, thereby creating a gap between the storage box 300 and the first shelf 220, which facilitates the retrieval and placement of the storage box 300.

[0156] For example, the external dimension L1 of the storage box 300 can be 129mm or 130mm; the internal dimension L2 of the first shelf 220 can be 142mm or 143mm, etc.

[0157] In some embodiments, along the height direction of the door 200, the inner height H2 of the first shelf 220 is less than the outer height H1 of the storage box 300, and the inner height H2 of the first shelf 220 may be slightly larger than half of the outer height H1 of the storage box 300. For example, the inner height H2 of the first shelf 220 may be 70 mm, and the outer height H1 of the storage box 300 may be 129 mm.

[0158] Compared to adding an extra support structure for the storage box 300 on the door 200, using the first shelf 220 to support the storage box 300 can increase the effective volume of the refrigerator.

[0159] In this embodiment, the air extraction device 400 is installed on the door 200, which does not require occupying the storage space inside the cabinet 100. Moreover, the first shelf 220 can both support the storage box 300 and store items, which helps to increase the effective volume of the refrigerator.

[0160] Combination Figure 13 In some implementations of this application, an elastic cushioning pad 221 is provided between the storage box 300 and the bottom wall of the first shelf 220.

[0161] The elastic cushioning pad 221 is installed on the storage box 300. As the storage box 300 moves, the elastic cushioning pad 221 is easily damaged. The elastic cushioning pad 221 can be installed on the bottom wall of the first shelf 220, which provides structural stability.

[0162] Continue to refer to Figure 13 The bottom wall of the first shelf 220 is provided with a mounting through hole, and the elastic cushioning pad 221 is mounted in the mounting through hole. For example, a portion of the elastic cushioning pad 221 extends out to the outside of the first shelf 220 through the mounting through hole, making it easy to hold and pull the elastic cushioning pad 221 into the mounting through hole.

[0163] The bottom wall of the first shelf 220 is partially recessed to form a recessed portion. A mounting through hole is provided in the recessed portion. An annular groove is provided on the side of the elastic buffer pad 221, and the annular groove engages with the recessed portion that surrounds the mounting through hole, thereby installing the elastic buffer pad 221 on the bottom wall of the first shelf 220.

[0164] The elastic cushioning pad 221 does not protrude from the recessed part, so as to avoid the elastic cushioning pad 221 protruding from the bottom wall and affecting the stability of the storage box 300.

[0165] The bottom of the storage box 300 is provided with a protruding support leg 322, which contacts the elastic buffer pad 221. This not only achieves elastic contact between the storage box 300 and the bottom wall, but also positions the storage box 300 within the first shelf 220.

[0166] For example, the storage box 300 has four legs 322 at its bottom, arranged in a rectangular matrix. Correspondingly, the bottom wall of the first shelf 220 has four elastic cushioning pads 221, which contact the four supports respectively, thereby improving the stability of the first shelf 220 in supporting the storage box 300.

[0167] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0168] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A refrigerator characterized by comprising: include: The box (100) is constructed to form a storage room (101); A door (200) is connected to a box (100) to open or close the storage compartment (101); A storage box (300) is movably placed in the box body (100) or the door (200); the storage box (300) is provided with: A vent (321) is connected to the internal space of the storage box (300). A one-way valve (340) is installed in the vent (321). The one-way valve (340) is configured to allow air in the storage box (300) to flow outward in one direction. The connecting part (330) surrounds the vent (321); A vacuum device (400) is configured to evacuate the storage box (300); The air extraction device (400) includes: An air pump (410) has an air intake port; The two ends of the suction pipe (420) are connected to the suction port and the suction connector (430) respectively. An air extraction connector (430) is detachably connected to a connecting part (330); an elastic sealing sleeve (500) is provided between the air extraction connector (430) and the connecting part (330); The elastic sealing sleeve (500) has an inner side (520), an outer side (510) and a bottom end face (530) connected to one end of the inner side (520) and the outer side (510). The outer side (510) is configured to be interference fit with one of the air extraction connector (430) and the connecting part (330). The bottom side of the bottom end face (530) and the inner side of the inner side face (520) have a first gap (333), which communicates with the internal space of the air extraction connector (430); part of the outer side face (510) is exposed to the atmosphere, and the elastic sealing sleeve (500) is configured to form a second gap on the outer side face (510) under the action of the pressure difference inside and outside the air extraction connector (430), which communicates with the first gap (333) so that outside air enters the air extraction connector (430) through the second gap and the first gap (333).

2. The refrigerator according to claim 1, characterized in that, The air extraction connector (430) is constructed to form an mounting ring (437); The elastic sealing sleeve (500) is fitted over the mounting ring (437); When the air extraction connector (430) is connected to the connecting part (330), the outer side (510) makes elastic contact with the connecting part (330).

3. The refrigerator according to claim 2, characterized in that, The connecting part (330) includes: The inner ring (331) is connected to the storage box (300), and the vent (321) is located inside the inner ring (331); The outer ring (332) is connected to the storage box (300) and is spaced out on the outside of the inner ring (331); the outer ring (332), the inner ring (331) and the storage box (300) form a mating groove (334); A portion of the elastic sealing sleeve (500) is inserted into the mating groove (334); when the air extraction connector (430) is connected to the connecting part (330), the outer side surface (510) and the inner ring surface of the outer ring part (332) are interference-fitted; under the action of the pressure difference between the inside and outside of the air extraction connector (430), the outer side surface (510) and the inner ring surface of the outer ring part (332) are constructed to form the second gap; A first gap (333) is formed between the inner side surface (520) and the outer ring surface of the inner ring portion (331), and a first gap (333) is formed between the bottom end surface (530) and the storage box (300).

4. The refrigerator according to claim 3, characterized in that, When the air extraction connector (430) is connected to the connecting part (330), there is a gap between the mounting ring (437) and the outer ring part (332) along the axial direction of the mounting ring (437).

5. The refrigerator according to claim 3, characterized in that, The air extraction connector (430) is also configured to form an outer ring (438), which is fitted over the outside of the mounting ring (437), and there is a receiving gap (4381) between the outer ring (438) and the mounting ring (437) so that a portion of the elastic sealing sleeve (500) is located within the receiving gap (4381). When the air extraction connector (430) is connected to the connecting part (330), there is a gap between the outer ring part (438) and the outer ring part (332) along the axial direction of the mounting ring (437).

6. The refrigerator according to claim 3, characterized in that, The inner ring surface of the outer ring (332) is formed: The first inclined surface is inclined away from the inner ring (331) along the axial direction of the outer ring (332) and away from the storage box (300); The first cylindrical surface is located on the side of the first inclined surface facing the storage box (300); The outer surface (510) of the resilient sealing sleeve (500) includes: When the air extraction connector (430) is connected to the connecting part (330), the second inclined surface (511) is interference-fitted with the first inclined surface, and part of the second inclined surface (511) is exposed to the atmosphere. When the air extraction connector (430) is connected to the connecting part (330), the second cylindrical surface (512) is interference-fitted with the first cylindrical surface.

7. The refrigerator according to any one of claims 1-6, characterized in that, An exhaust device (400) is installed on the door body (200); A first shelf (220) is installed on the door body (200), and the first shelf (220) is constructed to form an accommodating space with an opening at the top; An exhaust connector (430) is installed above the first shelf (220); The storage box (300) can be selectively placed in the first shelf (220); when the storage box (300) is placed in the first shelf (220), the air extraction connector (430) can be selectively connected to the connecting part (330) of the storage box (300).

8. The refrigerator according to claim 7, characterized in that, An elastic cushioning pad (221) is provided between the storage box (300) and the bottom wall of the first shelf (220).

9. The refrigerator according to claim 8, characterized in that, The bottom wall of the first shelf (220) is provided with a mounting through hole, and the elastic buffer pad (221) is installed in the mounting through hole; The bottom of the storage box (300) is provided with protruding support feet (322), which are in contact with the elastic cushioning pad (221).

10. The refrigerator according to any one of claims 1-6, characterized in that, An exhaust connector (430) is rotatably mounted on the door (200), and a storage box (300) is mounted on the door (200) and located below the exhaust connector (430); When the air extraction connector (430) is rotated from a vertical state to a horizontal state, the air extraction connector (430) is connected to the connecting part (330).

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