Refrigerator

Abstract

A refrigerator, comprising: a refrigerator body (100), which defines a mounting cavity (110) having a front port (111); a drawer (200), which is movably arranged inside the mounting cavity (110) by means of the front port (111), the drawer (200) forming an accommodating space (230) in a negative pressure state, and the drawer (200) having a communication opening (231) for communicating the accommodating space (230) with the outside; and a pressure relief device (300), which is arranged on the drawer (200), the pressure relief device (300) comprising a sealing member (320) and a control button (330), wherein the sealing member (320) is movably arranged at the communication port (231); the control button (330) is movably arranged on the drawer (200), and the control button (330) is connected to the sealing member (320); the control button (330) has a first position and a second position; when the control button (330) is in the first position, the sealing member (320) is controlled to close the communication port (231); and when the control button (330) is in the second position, the sealing member (320) is controlled to be separated from the communication port (231).

Description

Refrigerator

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202410866162.7, filed on June 28, 2024, Chinese Patent Application No. 202410865785.2, filed on June 28, 2024, and Chinese Patent Application No. 202421520530.4, filed on June 28, 2024, the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0003] Embodiments of the present application relate to the technical field of household appliances, and in particular to a refrigerator. BACKGROUND

[0004] A refrigerator is a common household appliance that can keep food or other items at a constant low temperature. The refrigerator includes a cabinet and a drawer arranged in the cabinet. The drawer forms a containing space in a negative pressure state to save food materials by using the containing space in the negative pressure state.

[0005] When it is necessary to put food materials into the drawer or take food materials out of the drawer, the drawer usually needs to be depressurized by using a pressure relief device so that air outside the drawer can enter the containing space in the negative pressure state. However, the depressurization process of the drawer containing space is troublesome. SUMMARY

[0006] The present application provides a refrigerator, which can solve the technical problem that the depressurization process of the drawer containing space is troublesome.

[0007] In a first aspect, the present application provides a refrigerator, comprising:

[0008] a cabinet, the cabinet defining a mounting cavity with a front port;

[0009] a drawer, the drawer being movably arranged in the mounting cavity through the front port; the drawer forms a containing space in a negative pressure state, and the drawer has a communication port for communicating the containing space with an outside;

[0010] a pressure relief device arranged in the drawer; the pressure relief device includes a sealing member and a control button;

[0011] the sealing member is movably arranged in the communication port;

[0012] The control button is movably arranged on the drawer, and the control button is connected with the sealing element; the control button has a first position and a second position; when the control button is in the first position, the control button controls the sealing element to close the communication port; when the control button is in the second position, the control button controls the sealing element to be separated from the communication port.

[0013] The refrigerator of the present application, when the drawer is in the locked state, is located in the mounting cavity, and the drawer forms a containing space in a negative pressure state to accommodate food materials through the containing space in the negative pressure state. The drawer has a communication port communicating the containing space and the outside, and a sealing element seals the communication port to ensure the sealing of the containing space, and the outside of the drawer is not communicated with the containing space.

[0014] When the containing space of the drawer is depressurized, the control button can be pressed to move the control button from the first position to the second position, so that the control button drives the sealing element to be separated from the communication port, so that the air outside the drawer enters the containing space, and the drawer is converted from the locked state to the depressurized state, thereby realizing the depressurization process of the drawer. The depressurization process of the drawer is more convenient, and the depressurized drawer can be moved relative to the cabinet, so that the containing space of the drawer can be exposed to realize the taking and placing of food materials in the containing space.

[0015] In a second aspect of the present application, the present application also provides a refrigerator, comprising a cabinet, a drawer and a pressure relief device;

[0016] The drawer is movably arranged in the mounting cavity of the cabinet; the drawer forms a containing space which can be in a negative pressure state, and the drawer has a communication port communicating the containing space and the outside;

[0017] The pressure relief device is arranged on the drawer; the pressure relief device comprises a sealing element and a control button; the sealing element is movably arranged on the communication port, and the control button is movably arranged on the drawer; the control button is connected with the sealing element, and the control button has a first position and a second position;

[0018] When the containing space is in a negative pressure state, the control button is in the first position, and the control button controls the sealing element to close the communication port; when the containing space of the drawer is depressurized, the control button is moved from the first position to the second position, and the control button drives the sealing element to be separated from the communication port, so that the air outside the drawer enters the containing space.

[0019] In a third aspect of the present application, the present application also provides a refrigerator, comprising:

[0020] The cabinet defines a mounting cavity with a front port;

[0021] a drawer movably arranged in the mounting cavity through the front port, the drawer forming a containing space in a negative pressure state, the drawer having a communication port for communicating the containing space with the outside;

[0022] a pressure relief device arranged in the drawer, the pressure relief device comprising a sealing member, a control button and a transmission member, the sealing member being movably arranged in the communication port, the control button being connected with the sealing member through the transmission member;

[0023] the transmission member being connected with the drawer and rotatable relative to the drawer, a first end of the transmission member being connected with the control button, and a second end of the transmission member being connected with the sealing member.

[0024] The refrigerator of the present application, when the drawer is in a locked state, is arranged in the mounting cavity, and forms a containing space in a negative pressure state to accommodate food materials through the containing space in the negative pressure state. The drawer has a communication port for communicating the containing space with the outside, and the sealing member blocks the communication port to ensure the sealing of the containing space, and the outside of the drawer is not communicated with the containing space.

[0025] When the containing space of the drawer is relieved of pressure, the sealing member can be driven away from the communication port through the control button to allow the air outside the drawer to enter the containing space, and the drawer is converted from the locked state to the pressure relief state, thereby realizing the pressure relief process of the drawer, which is more convenient. The drawer can be moved relative to the cabinet, and the containing space of the drawer can be exposed to realize the taking and placing of food materials in the containing space.

[0026] The transmission member connects the control button and the sealing member, and when the position of the sealing member needs to be adjusted, the control button can be moved to drive the sealing member to move relative to the communication port, so that the control button can drive the sealing member to block or open the communication port through the transmission member. The movement of the sealing member is more convenient, thereby making the pressure relief process of the containing space of the drawer more convenient.

[0027] In a fourth aspect, the present application also provides a refrigerator comprising a cabinet, a drawer and a pressure relief device;

[0028] the drawer being movably arranged in a mounting cavity of the cabinet, the drawer forming a containing space in a negative pressure state, the drawer having a communication port for communicating the containing space with the outside;

[0029] the pressure relief device being arranged in the drawer, the pressure relief device comprising a sealing member, a control button and a transmission member, the sealing member being movably arranged in the communication port, the control button being connected with the sealing member through the transmission member;

[0030] The transmission member is rotatably arranged in the drawer, and the transmission member is connected with the control button and the sealing member, and the force arm of the control button is greater than that of the sealing member.

[0031] When the containing space of the drawer is depressurized, the control button drives the transmission member to rotate relative to the drawer, and the force of the transmission member on the sealing member is greater than the force of the transmission member on the control button.

[0032] In a fifth aspect, the application further provides a refrigerator, comprising:

[0033] A cabinet, which defines a mounting cavity with a front port;

[0034] A drawer, which is movably arranged in the mounting cavity through the front port; when the drawer is in a locking state, the drawer is located in the mounting cavity, the drawer forms a containing space in a negative pressure state, and the drawer has a communication port for communicating the containing space with the outside; when the drawer is in a depressurization state, the drawer is movable relative to the cabinet;

[0035] A depressurization device, which comprises a sealing member and a control button connected with each other, and the sealing member is movably arranged in the communication port; when the drawer is in the locking state, the control button drives the sealing member to close the communication port; when the drawer is switched from the locking state to the depressurization state, the control button drives the sealing member to be separated from the communication port;

[0036] A functional element, a control end of the functional element is connected with the control button, and the control button is further configured to control the opening or closing of the functional element.

[0037] The refrigerator of the application, when the drawer is in the locking state, the drawer is located in the mounting cavity, and the drawer forms a containing space in a negative pressure state to accommodate food materials through the containing space in the negative pressure state. The drawer has a communication port for communicating the containing space with the outside, and the sealing member blocks the communication port to ensure the sealing of the containing space, and the outside of the drawer is not communicated with the containing space.

[0038] When the containing space of the drawer is depressurized, the sealing member can be driven to be separated from the communication port through the control button, so that the air outside the drawer enters the containing space, and the drawer is switched from the locking state to the depressurization state, thereby realizing the depressurization process of the drawer. The depressurization process of the drawer is more convenient, the drawer can be movable relative to the cabinet, and the containing space of the drawer can be exposed to realize the taking and placing of food materials in the containing space.

[0039] And, when the containing space of the drawer is depressurized, the control button can also control the function element through the control end of the function element, so that the function element is opened or closed, thereby enabling other functions of the drawer to be realized through the function element, so that the depressurization device can be used not only to realize the depressurization process of the containing space of the drawer, but also to control the opening or closing of the function element, thereby making the function of the depressurization device more abundant.

[0040] In a sixth aspect, the present application also provides a refrigerator, comprising a cabinet, a drawer, a depressurization device and a function element.

[0041] The drawer is movably arranged in a mounting cavity of the cabinet; when the drawer is in a locked state, the drawer is located in the mounting cavity, and the drawer forms a containing space in a negative pressure state, the containing space having a communication port communicating with the outside of the drawer; when the drawer is in a depressurization state, the drawer is movable relative to the cabinet.

[0042] The depressurization device comprises a sealing element and a control button connected to each other, the sealing element being movably arranged in the communication port, and the control button being configured to drive the sealing element to close or open the communication port.

[0043] When the containing space of the drawer is depressurized, the control button drives the sealing element to move away from the communication port, so that air outside the drawer enters the containing space, and the drawer is switched from the locked state to the depressurization state.

[0044] The control button controls the opening or closing of the function element through the control end of the function element. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the drawings needed to be used in the following embodiment or related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0046] Fig. 1 is a structural schematic view of a drawer and a cabinet in a locked state according to an embodiment of the present application;

[0047] Fig. 2 is a structural schematic view of a drawer and a cabinet in a depressurization state according to an embodiment of the present application;

[0048] Fig. 3 is a structural schematic view of a drawer and a cabinet in a depressurization state according to another view of an embodiment of the present application;

[0049] Fig. 4 is a position structural schematic view of a depressurization structure and a drawer door according to an embodiment of the present application;

[0050] Figure 5 is a cross-sectional view of the pressure relief structure according to an embodiment of this application;

[0051] Figure 6 is a schematic diagram of the pressure relief structure according to an embodiment of this application;

[0052] Figure 7 is a schematic diagram showing the position of the pressure relief structure and drawer door in an embodiment of this application;

[0053] Figure 8 is an exploded schematic diagram of the pressure relief structure according to an embodiment of this application;

[0054] Figure 9 is a schematic diagram of the transmission component and sealing component in the pressure relief structure of this application embodiment;

[0055] Figure 10 is a schematic diagram of the transmission component and sealing component in a pressure relief structure from another perspective of an embodiment of this application;

[0056] Figure 11 is a schematic diagram of the transmission component and sealing component in a pressure relief structure from another perspective of an embodiment of this application;

[0057] Figure 12 is a schematic diagram of the structure of the first link and the second link according to an embodiment of this application;

[0058] Figure 13 is a schematic diagram of the pressure relief device when the sealing element closes the communication port according to an embodiment of this application;

[0059] Figure 14 is a schematic diagram of the pressure relief device when the sealing part of the communication port is closed according to an embodiment of this application.

[0060] Figure 15 is a schematic diagram of the pressure relief device when the sealing port of the embodiment of this application is open;

[0061] Figure 16 is a schematic diagram showing the movement direction of each part of the pressure relief device when the control button is pressed according to an embodiment of this application;

[0062] Figure 17 is a schematic diagram showing the location of functional elements in an embodiment of this application.

[0063] Explanation of reference signs: 100, box; 110, mounting cavity; 111, front port; 200, drawer; 210, main body; 211, taking and placing opening; 220, drawer door; 221, movable opening; 230, containing space; 231, communication opening; 240, sealing circle; 250, flow channel; 300, pressure relief device; 310, base; 320, sealing member; 330, control button; 331, limiting part; 332, limiting groove; 340, transmission member; 341, first connecting rod; 3411, first end of first connecting rod; 3412, second end of first connecting rod; 342, second connecting rod; 3421, middle part of second connecting rod; 3422, first end of second connecting rod; 3423, second end of second connecting rod; 343, connecting part; 344, reinforcing member; 345, elastic member; 346, reset member; 347, rotating shaft; 400, functional element; 410, reminding member; 411, pressure sensing member; 420, air exchange member; 421, position sensor. DETAILED DESCRIPTION

[0064] In order to make the purpose, implementation and advantages of the present application clearer, the following will combine the drawings in the exemplary embodiments of the present application to clearly and completely describe the exemplary embodiments of the present application. Obviously, the described exemplary embodiments are only a part of the embodiments of the present application, but not all the embodiments.

[0065] It should be noted that the brief description of the terms in the present application is only for the convenience of understanding the following described embodiments, and is not intended to limit the embodiments of the present application. Unless otherwise specified, these terms should be understood according to their ordinary and general meanings.

[0066] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusive inclusion, for example, a product or device including a series of components does not have to be limited to the clearly listed components, but can include other components that are not clearly listed or inherent to these products or devices.

[0067] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0068] The terms "first", "second", etc. are only used for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0069] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0070] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0071] As described in the background, the related art refrigerator includes a cabinet, and a drawer provided in the cabinet, the drawer forms a containing space in a negative pressure state to preserve food materials by using the containing space in the negative pressure state. When it is necessary to put food materials into the drawer or take food materials out of the drawer, it is usually necessary to depressurize the drawer by using a pressure relief device, so that air outside the drawer can enter the containing space in the negative pressure state.

[0072] However, during the process of depressurizing the drawer by using the pressure relief device, it is usually necessary to remove the seal of the pressure relief device from the communication port of the drawer, so that the containing space of the drawer can be communicated with the outside of the drawer, and when the depressurization of the drawer is completed, it is also necessary to reinstall the seal on the communication port of the drawer to realize the resealing of the containing space of the drawer. The above-mentioned depressurization process of the drawer is troublesome.

[0073] Therefore, the refrigerator of the embodiments of the present application, when the drawer is in the locked state, is located in the mounting cavity, and the drawer forms a containing space in a negative pressure state to accommodate food materials by using the containing space in the negative pressure state. The pressure relief device of the refrigerator of the embodiments of the present application includes a seal, the drawer has a communication port for communicating the containing space and the outside, and the seal blocks the communication port, thereby ensuring the sealing of the containing space, and the outside of the drawer is not communicated with the containing space.

[0074] The pressure relief device of the refrigerator of the embodiments of the present application further comprises a control button, and the control button has a first position and a second position. When the containing space of the drawer is relieved of pressure, the control button can be pressed to move the control button from the first position towards the second position, so that the control button drives the sealing member to move away from the communication port, so that the air outside the drawer enters the containing space, and the drawer is switched from the locked state to the pressure relief state, thereby realizing the pressure relief process of the drawer. The pressure relief process of the drawer is more convenient, and the drawer after pressure relief can be moved relative to the cabinet, so that the containing space of the drawer can be exposed to realize the taking and placing of food materials in the containing space.

[0075] Moreover, the sealing member configured to close or open the communication port is movably arranged on the inner side of the base, and the base can isolate and protect the sealing member and the communication port to some extent, so that the sealing member and the communication port are not disturbed by external sundries, the possibility of the communication port being blocked by sundries is reduced, and the possibility of the sealing member being deformed and damaged by external impact is reduced, thereby ensuring the sealing effect of the sealing member on the communication port.

[0076] Referring to FIGS. 1-3, the embodiments of the present application provide a refrigerator, which includes a cabinet 100. The cabinet 100 includes a top portion and a bottom portion arranged along a length direction. An internal storage compartment can be formed in the cabinet 100, and the internal storage compartment can include a refrigeration chamber and a freezing chamber to store food materials in a refrigerated or frozen state.

[0077] The refrigerator of the present application can include a door body. The door body can include a door body inner container and a door body outer shell. The door body can be configured to at least open and close the storage space. The door body can be configured to form a relatively closed space in the cabinet 100, so that the internal storage compartment of the cabinet 100 can maintain a relatively constant temperature, and the temperature rising speed of the internal storage compartment is reduced.

[0078] In some embodiments, the cabinet 100 defines a mounting cavity 110 having a front port 111. The mounting cavity 110 can be located in the internal storage compartment, for example, the mounting cavity 110 can be located in the refrigeration chamber, and the mounting cavity 110 can also be located in the freezing chamber.

[0079] For example, the refrigerator can include a drawer 200. The drawer 200 is movably arranged in the mounting cavity 110 through the front port 111. When the drawer 200 is in a locked state, the drawer 200 is located in the mounting cavity 110, and the drawer 200 can form a containing space 230 in a negative pressure state, so that the containing space 230 in the negative pressure state can accommodate food materials to be preserved. When the drawer 200 is in a pressure relief state, the drawer 200 is movable relative to the cabinet 100, so that the drawer 200 can move into or out of the mounting cavity 110 to realize the taking and placing of food materials.

[0080] Referring to FIGS. 4 and 5, the drawer 200 has a communication port 231 that communicates the accommodation space 230 with the outside. When the drawer 200 is in the locked state, the communication port 231 is closed so that the accommodation space 230 is in a negative pressure state. When the accommodation space 230 of the drawer 200 is depressurized, the communication port 231 is opened so that air outside the drawer 200 enters the accommodation space 230, and the drawer 200 is switched from the locked state to the depressurized state, thereby realizing the depressurization process of the drawer 200.

[0081] The refrigerator can include a depressurization device 300. The depressurization device 300 can include a seal 320. The seal 320 is movably disposed at the communication port 231, and the seal 320 can close or open the communication port 231 to realize the sealing and depressurization of the accommodation space 230.

[0082] The depressurization device 300 can include a control button 330. The control button 330 is connected with the seal 320, and the control button 330 can move the seal 320 relative to the drawer 200. It should be noted that the control button 330 is connected with the seal 320, and the control button 330 can be directly connected with the seal 320 or indirectly connected with the seal 320. When the drawer 200 is in the locked state, the control button 330 makes the seal 320 close the communication port 231. When the drawer 200 is switched from the locked state to the depressurized state, the control button 330 can move the seal 320 away from the communication port 231.

[0083] When the drawer 200 is in the locked state, the drawer 200 is located in the installation cavity 110, and the drawer 200 forms the accommodation space 230 in the negative pressure state to accommodate food materials through the accommodation space 230 in the negative pressure state. The accommodation space 230 has the communication port 231 that communicates with the outside of the drawer 200, and the seal 320 blocks the communication port 231, thereby ensuring the sealing of the accommodation space 230, and the outside of the drawer 200 is not communicated with the accommodation space 230.

[0084] When the accommodation space 230 of the drawer 200 is depressurized, the seal 320 can be moved away from the communication port 231 through the control button 330, so that air outside the drawer 200 enters the accommodation space 230, and the drawer 200 is switched from the locked state to the depressurized state, thereby realizing the depressurization process of the drawer 200. The depressurization process of the drawer 200 is more convenient, so that the drawer 200 can be movable relative to the cabinet 100, and the accommodation space 230 of the drawer 200 can be exposed to realize the taking and placing of food materials in the accommodation space 230.

[0085] Referring to FIGS. 13 to 15, the refrigerator can include a functional element 400 connected to the drawer 200. The control end of the functional element 400 can be connected to the control button 330, and the control button 330 can be configured to control the opening or closing of the functional element 400, so that the control button 330 has more functions.

[0086] Specifically, in some embodiments, when the control button 330 drives the sealing member 320 to be separated from the communication port 231, the control button 330 presses the control end of the functional element 400 to turn on the functional element 400. When the control button 330 drives the sealing member 320 to be separated from the communication port 231, the control button 330 releases the control end of the functional element 400 to turn off the functional element 400.

[0087] In other embodiments, when the control button 330 drives the sealing member 320 to be separated from the communication port 231, the control button 330 presses the control end of the functional element 400 to turn on the functional element 400. When the control button 330 drives the sealing member 320 to be separated from the communication port 231 again, the control button 330 presses the control end of the functional element 400 again to turn off the functional element 400.

[0088] When the pressure in the accommodation space 230 of the drawer 200 is released, the control button 330 can also control the functional element 400 through the control end of the functional element 400, so that the functional element 400 is turned on or off, and other functions of the drawer 200 can be realized through the functional element 400. Therefore, the pressure relief device 300 can not only be configured to realize the pressure relief process of the accommodation space 230 of the drawer 200, but also can control the opening or closing of the functional element 400, so that the pressure relief device 300 has more functions.

[0089] In some embodiments, the refrigerator can include a refrigeration system, which can be configured to supply cold air into the storage compartment. The refrigeration system includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant circulates through the components of the refrigeration system to achieve a refrigeration effect.

[0090] For example, the main flow process of the refrigerant in each component is as follows: the refrigerant enters the condenser after passing through the compressor, enters the expansion valve after passing through the condenser, enters the evaporator after passing through the expansion valve, and flows back to the compressor after passing through the evaporator.

[0091] The compressor compresses refrigerant gas at high temperature and high pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process, and the expansion valve expands the liquid-phase refrigerant at high temperature and high pressure in the condenser into liquid-phase refrigerant at low pressure. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas at low temperature and low pressure to the compressor. The evaporator can achieve a refrigeration effect by exchanging heat with a material to be cooled using latent heat of evaporation of the refrigerant.

[0092] Referring to FIGS. 2 and 3, in some embodiments, the drawer 200 can include a main body 210, which can be a rectangular box structure having a top with a loading / unloading opening 211. The main body 210 can have a receiving space 230 formed therein, which can be a cavity structure having a top with the loading / unloading opening 211. Food materials can be loaded into the receiving space 230 through the loading / unloading opening 211 at the top of the receiving space 230 or taken out of the receiving space 230 through the loading / unloading opening 211 at the top of the receiving space 230.

[0093] For example, the drawer 200 can include a drawer door 220. The drawer door 220 can be provided at the front end of the main body 210 and can be configured to at least slide the main body 210, thereby allowing the entire drawer 200 to be drawn in and out of the installation cavity 110. When the entire drawer 200 is completely pushed into the installation cavity 110, the drawer door 220 can close the front side communication port of the receiving space 230, thereby forming a closed receiving space 230.

[0094] In some embodiments, the drawer door 220 and the main body 210 can also be a one-piece structure, i.e., the front wall of the main body 210 can be used as the drawer door 220, thereby reducing the number of components of the drawer 200 and simplifying the installation process.

[0095] The left and right sides of the main body 210 can each be provided with a guide rail extending in the front-rear direction of the cabinet 100. A sliding groove (not shown) that cooperates with the guide rail can be arranged on the inner side wall of the installation cavity 110, allowing the guide rail to slide in the sliding groove in the front-rear direction, thereby allowing the main body 210 to move in the front-rear direction in the installation cavity 110, improving the stability of the drawer 200 drawn in and out of the installation cavity 110.

[0096] The left and right sides of the main body 210 can each be provided with a roller, which can be spaced apart from the rear end of the guide rail and located on the same line as the guide rail. The roller and the guide rail can slide in the sliding groove, the top surface of the roller can protrude from the top surface of the guide rail, and the bottom surface of the roller can protrude from the bottom surface of the guide rail. By rolling the roller in contact with the top surface and the bottom surface of the sliding groove, direct contact between the guide rail and the sliding groove can be avoided, the friction between the main body 210 and the inner wall of the installation cavity 110 can be reduced, and the drawer 200 can be smoothly drawn in and out of the installation cavity 110.

[0097] The refrigerator can include a sealing ring 240, which can be provided to at least one of the drawer 200 and the cabinet 100. When the drawer 200 is completely put into the installation cavity 110 in the refrigerator, the sealing ring 240 can be clamped at the front port 111 of the drawer door 220 and the cabinet 100 installation cavity 110 to seal the installation cavity 110 by the sealing ring 240, so as to realize the sealing of the containing space 230.

[0098] It should be noted that when the drawer 200 is completely put into the installation cavity 110 in the refrigerator, the sealing ring 240 can be clamped at the front port 111 of the drawer door 220 and the cabinet 100 installation cavity 110 to seal the installation cavity 110 by the sealing ring 240. When the containing space 230 is in a negative pressure state, there is a squeezing and binding force between the end face of the sealing ring 240 and the cabinet 100. When the user pulls the drawer 200, there is a binding force and a pulling force between the end face of the sealing ring 240 and the cabinet 100, which is opposite to the direction of the binding force between the sealing ring 240 and the drawer 200, so that the sealing ring 240 may be separated from the drawer 200, or part of the sealing ring 240 may be unevenly stressed, so that the sealing ring 240 is deformed or damaged.

[0099] In some embodiments, the drawer 200 can include an air extraction device, and an air extraction port of the air extraction device can be in communication with the containing space 230. When the drawer 200 is in a locked state, the drawer 200 is located in the installation cavity 110, and the air extraction device can extract air in the containing space 230, so that the containing space 230 forms a negative pressure state.

[0100] The air extraction device can include a vacuum pump or the like structure to reduce the content of air in the containing space 230 by the vacuum pump. Compared with reducing the oxygen content in the containing space 230, reducing the air content in the containing space 230 can reduce the air pressure in the containing space 230, so that the food is placed in a negative pressure state, and the preservation effect on the food is further improved.

[0101] Please refer to FIGS. 5 to 7. In some embodiments, the pressure relief device 300 can further include a base 310, and the control button 330 can be movably provided on the base 310. The base 310 can be provided on the drawer door 220, or the base 310 can be provided on the main body 210, and the control button 330 can be connected to the drawer 200 through the base 310.

[0102] The base 310 can be arranged outside the communication port 231, and the communication port 231 can be communicated outside the drawer 200 through the base 310. The sealing member 320 can be movably arranged inside the base 310, and the sealing member 320 can close or open the communication port 231, so that the base 310 can protect the communication port 231 and the sealing member 320.

[0103] The control button 330 can be movably arranged in the base 310, and the control button 330 is connected with the sealing member 320. The control button 330 has a first position and a second position. When the control button 330 is in the first position, the control button 330 controls the sealing member 320 to close the communication port 231. When the control button 330 is in the second position, the control button 330 controls the sealing member 320 to open the communication port 231. When the control button 330 moves from the first position to the second position, the control button 330 controls the sealing member 320 to be separated from the communication port 231.

[0104] When the drawer 200 is in the locked state, the drawer 200 is located in the mounting cavity 110, and the drawer 200 forms the containing space 230 in the negative pressure state to accommodate the food materials through the containing space 230 in the negative pressure state. The containing space 230 has a communication port 231 communicated with the outside of the drawer 200, and the sealing member 320 blocks the communication port 231, so as to ensure the sealing of the containing space 230, and the outside of the drawer 200 is not communicated with the containing space 230.

[0105] When the containing space 230 of the drawer 200 is depressurized, the control button 330 can be pressed, so that the control button 330 moves from the first position to the second position, so that the sealing member 320 can be driven by the control button 330 to be separated from the communication port 231, so that the air outside the drawer 200 enters the containing space 230, and the drawer 200 is converted from the locked state to the depressurized state, so as to realize the depressurization process of the drawer 200, so that the depressurization process of the drawer 200 is more convenient, and the depressurized drawer 200 can be moved relative to the cabinet 100, so that the containing space 230 of the drawer 200 can be exposed, so as to realize the taking and placing of the food materials in the containing space 230.

[0106] Moreover, the sealing member 320 configured to close or open the communication port 231 is movably arranged inside the base 310, that is, arranged on the side of the base 310 close to the main body 210. The base 310 can isolate and protect the sealing member 320 and the communication port 231, so that the sealing member 320 and the communication port 231 are not disturbed by external sundries, the possibility of the communication port 231 being blocked by sundries is reduced, and the possibility of the sealing member 320 being deformed and damaged by external impact is reduced, so as to ensure the sealing effect of the sealing member 320 on the communication port 231.

[0107] It is easy to understand that by setting the control button 330, the control button 330 can drive the sealing member 320 to open or close the communication port 231. When the user needs to release the pressure of the drawer 200 to enable the drawer 200 to be pulled out of the installation cavity 110, the user usually presses or holds the drawer door 220, and the user usually applies pressure to the drawer door 220 of the drawer 200. That is, the position of the control button 330 can be adjusted so that the user can directly press the control button 330 during the opening of the drawer door 220, so that the user can more naturally and easily release the pressure of the drawer 200 through the control button 330 during the opening of the drawer 200, and the pressure release process of the drawer 200 is more convenient.

[0108] In addition, compared with other implementations, the movement of the sealing member 320 is realized by the control button 330, the user does not directly contact the sealing member 320, the communication port 231 is not directly directed to the user, and the sealing member 320 and the communication port 231 are not directly in contact with the external environment, which can reduce the possibility of damage to the sealing member 320 and blockage of the communication port 231.

[0109] In some embodiments, the pressure release device 300 is arranged on the drawer door 220, and when the control button 330 is in the first position, at least part of the control button 330 is arranged to protrude from the surface of the drawer door 220 away from the main body 210. When the control button 330 is in the second position, the control button 330 is arranged flush with the surface of the drawer door 220 away from the main body 210.

[0110] When the control button 330 is in the first position, at least part of the control button 330 is arranged to protrude from the surface of the drawer door 220 away from the main body 210, so that the control button 330 is more easily pressed, and when the control button 330 is in the second position, the control button 330 is arranged flush with the surface of the drawer door 220 away from the main body 210, which can reduce the possibility of the control button 330 being stuck relative to the drawer door 220.

[0111] Referring to FIGS. 5 and 8, in some embodiments, the control button 330 is provided with a limiting portion 331 located between the drawer door 220 and the main body 210. The drawer door 220 is provided with a first blocking portion corresponding to the limiting portion 331. The limiting portion 331 abuts against the first blocking portion when the control button 330 is arranged flush with the surface of the drawer door 220 away from the main body 210, to limit the control button 330 from continuing to move towards the main body 210, thereby reducing the possibility of the control button 330 being stuck relative to the drawer door 220.

[0112] It should be noted that when the control button 330 is pressed, the control button 330 needs to be movable relative to the drawer door 220, that is, at least a part of the control button 330 needs to be moved back and forth relative to the drawer door 220, and when the control button 330 is pressed, part of the control button 330 moves from the outside of the drawer door 220 to the inside of the drawer door 220. The control button 330 can move to the inside of the drawer door 220, so that the control button 330 is stuck relative to the drawer door 220. By setting the movement range of the control button 330, the control button 330 will not move to the inside of the drawer door 220 when the control button 330 is in the second position, so as to ensure the smoothness of the pressing process of the control button 330.

[0113] Referring to FIGS. 4 and 5, in some embodiments, the drawer door 220 and the main body 210 can be spaced apart, and a base 310 of the pressure relief device 300 can be configured to be accommodated between the drawer door 220 and the main body 210 to achieve installation and fixation of the base 310.

[0114] For example, the base 310 is arranged between the drawer door 220 and the main body 210, and the drawer door 220 can be provided with a movable opening 221, and the control button 330 can be movably arranged in the movable opening 221 in a direction close to or away from the main body 210, so that the control button 330 can switch between the pressed state and the released state in the movable opening 221.

[0115] Alternatively, the drawer door 220 and the base 310 are integrally arranged, and the drawer door 220 is provided with a movable opening 221, and the control button 330 can be movably arranged in the movable opening 221 in a direction close to or away from the main body 210. The drawer door 220 and the base 310 are integrally arranged, which can reduce the number of parts of the refrigerator, and make the connection structure of the control button 330 and the drawer door 220 more direct and close.

[0116] For example, the drawer door 220 can be detachably arranged on the main body 210. For example, the drawer door 220 can be fixed to the main body 210 by plug-in or screw connection, so that the installation process of the drawer door 220 is more convenient.

[0117] In addition, by detachably arranging the drawer door 220 on the main body 210, the base 310 and the like can be first installed on the front side of the main body 210 or the rear side of the drawer door 220, and then the drawer door 220 is installed on the main body 210, so that the base 310 can be arranged between the drawer door 220 and the main body 210 to achieve the installation process of the base 310.

[0118] Referring to FIGS. 7-9, the pressure relief device 300 can include a resilient member 345. A first end of the resilient member 345 is connected to the base 310, and a second end of the resilient member 345 is connected to the control button 330. The resilient member 345 is configured to at least move the control button 330 toward the first position.

[0119] When it is necessary to adjust the position of the sealing member 320 to move the sealing member 320 relative to the communication port 231 by the control button 330, the control button 330 is moved so that the control button 330 moves from the first position toward the second position. The resilient member 345 is deformed, and the control button 330 moves the sealing member 320 away from the communication port 231, thereby achieving the pressure relief process of the accommodation space 230 of the drawer 200.

[0120] When the pressure relief process of the accommodation space 230 of the drawer 200 is completed, the resilient member 345 can be reset, and the resilient member 345 moves the control button 330 from the second position toward the first position. The control button 330 moves the sealing member 320 to close the communication port 231, thereby reducing the possibility that the sealing member 320 is not reset and the accommodation space 230 cannot be sealed, thereby affecting the preservation effect of the food materials.

[0121] For example, the resilient member 345 can be a coil spring. The coil spring has two ends connected to the base 310 and the control button 330, respectively. When the control button 330 is moved from the first position toward the second position, the coil spring is compressed by the control button 330 and deformed. When the pressure relief of the accommodation space 230 of the drawer 200 is completed, the coil spring releases the elastic force accumulated by compression and moves the control button 330 from the second position toward the first position. The control button 330 moves the sealing member 320 to close the communication port 231.

[0122] In some embodiments, the drawer door 220 is further provided with a second blocking portion corresponding to the limiting portion 331. The limiting portion 331 is further configured to abut against the second blocking portion during movement of the control button 330 from the second position toward the first position, thereby limiting the control button 330 and reducing the possibility that the control button 330 is separated from the drawer door 220.

[0123] The area of the limiting portion 331 can be greater than the area of the movable port 221, so that the limiting portion 331 cannot move from the movable port 221 to the outside of the drawer door 220. The limiting portion 331 is always located between the drawer door 220 and the main body 210. When the control button 330 is in the first position, the surface of the limiting portion 331 away from the main body 210 abuts against the drawer door 220. When the control button 330 is in the second position, the limiting portion 331 is spaced apart from the drawer door 220.

[0124] By adopting the technical scheme, when the control button 330 is in the first position, the surface of the limiting part 331 away from the main body 210 abuts against the drawer door 220; when the control button 330 is in the second position, the limiting part 331 is arranged in a spaced manner with the drawer door 220, so that the limiting part 331 can play a certain limiting and blocking role on the control button 330, and the possibility of the control button 330 being separated from the drawer door 220 is reduced.

[0125] Referring to FIG. 5, the flow channel 250 can be arranged between the drawer door 220 and the main body 210, and the flow channel 250 is at least configured to flow air, and the flow channel 250 and the containing space 230 are communicated through the communication port 231, so that the flow process of the air is more stable.

[0126] In this way, the flow channel 250 is at least configured to flow air, and the flow channel 250 and the containing space 230 are communicated through the communication port 231, when the containing space 230 of the drawer 200 is depressurized, the control button 330 drives the sealing piece 320 to be separated from the communication port 231, so that the air outside the drawer 200 can flow into the containing space 230 through the flow channel 250, thereby converting the containing space 230 from a positive pressure state to an atmospheric pressure state, and converting the drawer 200 from a locked state to a depressurized state.

[0127] In some embodiments, the control button 330 and the communication port 231 are arranged in a staggered manner in a projection plane of the drawer door 220 in the extension direction of the communication port 231. The control button 330 and the communication port 231 are arranged in a staggered manner, the control button 330 faces the main body 210, so that the air flowing in the communication port 231 does not flow to the control button 330, thereby reducing the influence of the air flowing in the communication port 231 on the pressing process of the control button 330.

[0128] For example, the control button 330 is connected with the main body 210, and the communication port 231 is arranged on the drawer door 220, so as to realize the staggered arrangement of the control button 330 and the communication port 231.

[0129] In another embodiment, the control button 330 and the communication port 231 are at least partially overlapped in a projection plane of the drawer door 220 in the extension direction of the communication port 231, so that the structure of the control button 330 and the drawer door 220 is more compact.

[0130] Referring to FIGS. 5, 7-9 and 12, in some embodiments of the present application, the pressure relief device 300 can further include a transmission member 340. The input end of the transmission member 340 can be connected with the control button 330, and the output end of the transmission member 340 can be connected with the sealing piece 320, so that the control button 330 can drive the sealing piece 320 to close or open the communication port 231 through the transmission member 340, thereby making the process of driving the sealing piece 320 by the control button 330 more convenient.

[0131] When the position of the sealing member 320 needs to be adjusted to move the sealing member 320 relative to the communication port 231 by the control button 330, the control button 330 is moved so that the control button 330 can drive the sealing member 320 to block or open the communication port 231 through the transmission member 340, so that the control button 330 and the sealing member 320 are connected through the transmission member 340, and the movement of the sealing member 320 is more convenient.

[0132] In some embodiments of the present application, the transmission member 340 is rotatably arranged in the drawer 200. The first end of the transmission member 340 is connected to the control button 330, and the second end of the transmission member 340 is connected to the sealing member 320. The distance between the first end of the transmission member 340 and the rotation axis 347 of the transmission member 340 is greater than the distance between the second end of the transmission member 340 and the rotation axis 347 of the transmission member 340.

[0133] The transmission member 340 connects the control button 330 and the sealing member 320. When the position of the sealing member 320 needs to be adjusted to move the sealing member 320 relative to the communication port by the control button 330, the control button 330 can be moved so that the control button 330 can drive the sealing member 320 to block or open the communication port 231 through the transmission member 340. The distance between the first end of the transmission member 340 and the rotation axis 347 of the transmission member 340 is greater than the distance between the second end of the transmission member 340 and the rotation axis 347 of the transmission member 340, so that the transmission member 340 can form a force-saving lever structure, and the movement of the sealing member 320 is more labor-saving and convenient, thereby making the pressure relief process of the drawer 200 more convenient.

[0134] The transmission member 340 includes a first connecting rod 341 and a second connecting rod 342. The first end 3411 of the first connecting rod 341 is rotatably arranged in the drawer 200 through the rotation axis 347. The middle part 3421 of the second connecting rod 342 can be connected to the second end 3412 of the first connecting rod 341. The first end 3422 of the second connecting rod 342 can be connected to the control button 330, and the second end 3423 of the second connecting rod 342 is connected to the sealing member 320.

[0135] When the position of the sealing member 320 needs to be adjusted to move the sealing member 320 relative to the communication port 231 by the control button 330, the control button 330 is moved so that the control button 330 can drive the sealing member 320 to block or open the communication port 231 through the transmission member 340.

[0136] The transmission member 340 can be provided as a force-saving lever structure, for example, the distance between the first end 3422 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341 is greater than the distance between the second end 3423 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341. The control button 330 can drive the first connecting rod 341 to rotate relative to the drawer 200 through the second connecting rod 342, so that the control button 330 can drive the sealing member 320 to move through the first connecting rod 341 and the second connecting rod 342 connected thereto, thereby connecting the control button 330 and the sealing member 320 through the transmission member 340, the distance between the first end 3422 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341 is greater than the distance between the second end 3423 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341, the transmission member 340 can form a force-saving lever structure, so that the movement of the sealing member 320 is more labor-saving and convenient.

[0137] It should be noted that when it is necessary to move the control button 330 from the first position to the second position to make the control button 330 drive the sealing member 320 to gradually separate from the communication port 231, since the accommodation space 230 is in a negative pressure state, the accommodation space 230 will generate a certain adsorption force on the sealing member 320, so that the process of the sealing member 320 separating from the communication port 231 is resisted to a certain extent. By providing the transmission member 340 as a force-saving lever structure, the process of the control button 330 driving the sealing member 320 to separate from the communication port 231 is more labor-saving, and the control button 330 is more easily moved from the first position to the second position, so that the pressure relief process of the drawer 200 is more convenient.

[0138] For example, the first connecting rod 341 can be perpendicular to the second connecting rod 342. The middle part 3421 of the second connecting rod 342 can be provided with a connection point, the distance between the first end 3422 of the second connecting rod 342 and the connection point is greater than the distance between the second end 3423 of the second connecting rod 342 and the connection point.

[0139] It should be noted that the middle part 3421 of the second connecting rod 342 does not mean the center position of the second connecting rod 342, the middle part 3421 of the second connecting rod 342 can be the part between the first end 3422 of the second connecting rod 342 and the second end 3423 of the second connecting rod 342, and the first end 3422 of the second connecting rod 342 and the second end 3423 of the second connecting rod 342 are not symmetrically arranged relative to the connection point.

[0140] The first connecting rod 341 is perpendicular to the second connecting rod 342, the first end 3422 of the second connecting rod 342 is farther away from the connecting point than the second end 3423 of the second connecting rod 342, the first end 3422 of the second connecting rod 342 can form the first end of the transmission member 340, and the second end 3423 of the second connecting rod 342 can form the second end of the transmission member 340, so that the structure of the second connecting rod 342 is more stable, and the transmission member 340 can be used as a labor-saving transmission member 340.

[0141] In addition, the first end 3422 of the second connecting rod 342 and the second end 3423 of the second connecting rod 342 are provided with a connecting point, and the second end 3412 of the first connecting rod 341 is connected to the connecting point, so that the relative position relationship between the first connecting rod 341 and the second connecting rod 342 is more accurate, the first connecting rod 341 can play a role of extension and avoidance, so that the second connecting rod 342 does not contact the surface of the drawer 200 during rotation around the rotation shaft 347 of the transmission member 340, the interference of the drawer 200 on the rotation process of the transmission member 340 is reduced, and the rotation process of the transmission member 340 around the rotation shaft 347 is more smooth.

[0142] It should be noted that when the transmission member 340 does not include the first connecting rod 341, the middle part 3421 of the second connecting rod 342 is directly rotatably arranged on the drawer 200, so that the end part of the second connecting rod 342 is easily in contact with the surface of the drawer 200 during rotation, the drawer 200 easily interferes with the rotation process of the second connecting rod 342, and thus the normal rotation process of the transmission member 340 is affected.

[0143] For example, the first connecting rod 341 and the second connecting rod 342 can be connected by insertion or threaded connection, so that the first connecting rod 341 and the second connecting rod 342 can be separately formed, and the connection position of the first connecting rod 341 and the second connecting rod 342 is more flexible to adapt to different use modes.

[0144] Alternatively, the first connecting rod 341 and the second connecting rod 342 can be integrally provided, so that the forming process of the first connecting rod 341 and the second connecting rod 342 is more convenient. In addition, compared with the first connecting rod 341 and the second connecting rod 342 that are spliced, the connection structure of the integrally formed first connecting rod 341 and the second connecting rod 342 is more stable, the connection position of the first connecting rod 341 and the second connecting rod 342 does not need to be positioned, and the installation process of the first connecting rod 341 and the second connecting rod 342 is more convenient.

[0145] In some embodiments, the first end 3411 of the first link 341 is fixedly connected to the drawer 200, and the middle portion 3421 of the second link 342 is rotatably connected to the second end 3412 of the first link 341. The first end 3422 of the second link 342 is connected to the control button 330, and the second end 3423 of the second link 342 is connected to the sealing member 320.

[0146] When the position of the sealing member 320 needs to be adjusted, the control button 330 drives the second link 342 to rotate around the second end 3412 of the first link 341, so that the second link 342 drives the sealing member 320 to block or open the communication port 231.

[0147] By arranging the first link 341, the first end 3422 and the second end 3423 of the second link 342 are both away from the surface of the drawer 200, and during the rotation of the second link 342 around the rotation axis 347, the first end 3422 of the second link 342 and the second end 3423 of the second link 342 are both not in contact with the surface of the drawer 200, so that the transmission member 340 can have a certain avoiding function by arranging the first link 341.

[0148] In some embodiments, the base 310 can be arranged on the front side of the drawer door 220. The connecting direction of the first position and the second position can be arranged in parallel with the orientation of the communication port 231. For example, the connecting direction of the first position and the second position can be perpendicular to the plane where the drawer door 220 is located. That is, the control button 330 can be moved in a direction perpendicular to the plane where the drawer door 220 is located, and the control button 330 can be arranged as a button type control button 330 to make the pressing process of the control button 330 more convenient. The communication port 231 can be arranged on the drawer door 220, and the end of the communication port 231 away from the main body 210 can face the base 310. The communication port 231 can be in communication with the outside of the drawer 200 through the base 310, so that the base 310 can hide the communication port 231, thereby reducing the possibility of the communication port 231 being directly contacted with the outside world and reducing the possibility of the communication port 231 being blocked by sundries.

[0149] For example, the control button 330 can have a first position and a second position. When the control button 330 is in the first position, the control button 330 controls the sealing member 320 to close the communication port 231, and when the control button 330 is in the second position, the control button 330 controls the sealing member 320 to open the communication port 231. When the control button 330 moves from the first position to the second position, the control button 330 drives the sealing member 320 to separate from the communication port 231.

[0150] By adopting the technical scheme, when the containing space 230 of the drawer 200 is depressurized, the position of the control button 330 can be adjusted so that the control button 330 can move from the first position to the second position, and the sealing piece 320 can be gradually separated from the communication port 231 of the containing space 230 under the driving of the control button 330, the containing space 230 is communicated with the outside of the drawer 200 through the communication port 231, and the depressurization process of the drawer 200 is realized.

[0151] When it is needed to form a negative pressure state in the containing space 230, the position of the control button 330 can be adjusted so that the control button 330 can move from the second position to the first position, and the control button 330 can drive the sealing piece 320 to close the communication port 231, so that the containing space 230 is sealed to form a negative pressure state in the containing space 230 through the air exhaust device.

[0152] Please refer to FIGS. 8 to 11, for example, the second end 3423 of the second connecting rod 342 can be provided with a connecting part 343. The end of the connecting part 343 away from the second connecting rod 342 can extend towards the drawer door 220, and the end of the connecting part 343 away from the second connecting rod 342 can be connected with the sealing piece 320, so that the sealing piece 320 can be connected to the second connecting rod 342 through the connecting part 343, the distance between the second end 3423 of the second connecting rod 342 and the drawer door 220 is increased, and the possibility of interference of the drawer door 220 during the rotation of the second connecting rod 342 is reduced.

[0153] The vertical line from the center position of the sealing piece 320 to the rotation shaft 347 of the transmission part 340 can be arranged in parallel with the extension direction of the second connecting rod 342. When the sealing piece 320 is driven by the control button 330 through the transmission part 340 to separate from the communication port 231, the moving direction of the control button 330 can be arranged in parallel with the moving direction of the sealing piece 320.

[0154] By adopting the technical scheme, when the sealing piece 320 is driven by the control button 330 through the transmission part 340 to separate from the communication port 231, the moving direction of the control button 330 can be arranged in parallel with the moving direction of the sealing piece 320, the friction between the sealing piece 320 and the inner wall of the communication port 231 is small, so that the sealing piece 320 is more easily separated from the communication port 231, and the moving process of the sealing piece 320 is more convenient.

[0155] When it is needed to move the control button 330 from the first position to the second position so that the control button 330 drives the sealing piece 320 to gradually separate from the communication port 231 through the transmission part 340, because the containing space 230 is in a negative pressure state, the containing space 230 will generate a certain adsorption force on the sealing piece 320, and the process of separating the sealing piece 320 from the communication port 231 will be resisted.

[0156] The line direction of the sealing member 320 and the rotating shaft 347 of the transmission member 340 is parallel to the extending direction of the second connecting rod 342, and the moving direction of the sealing member 320 is approximately parallel to the moving direction of the control button 330, that is, the line direction of the first position and the second position, so that the sealing member 320 can more easily close or open the communication port 231, and the use of the pressure relief device 300 is more convenient, and the possibility of the sealing member 320 being deformed to affect the sealing effect is reduced.

[0157] It should be noted that the line direction of the sealing member 320 and the rotating shaft 347 of the transmission member 340 is parallel to the extending direction of the second connecting rod 342, the connecting portion 343 is fixedly connected with the second connecting rod 342, and the second connecting rod 342, the first connecting rod 341, and the line direction of the sealing member 320 and the rotating shaft 347 of the transmission member 340 together form a parallelogram.

[0158] When the sealing member 320 starts to close or separate from the communication port 231, the moving direction of the sealing member 320 can be approximately perpendicular to the extending direction of the second connecting rod 342, and the moving direction of the sealing member 320 is approximately parallel to the line direction of the first position and the second position, so that the sealing member 320 can more easily close or open the communication port 231.

[0159] Please refer to FIGS. 13-16. For example, when the sealing member 320 closes the communication port 231, at least part of the sealing member 320 can be located outside the communication port 231, and at least part of the sealing member 320 can be located inside the communication port 231, so as to ensure that the sealing member 320 closes the two sides of the communication port 231, ensures the sealing effect of the sealing member 320 on the communication port 231, and reduces the possibility of the accommodation space 230 being communicated with the outside of the drawer 200 through the communication port 231.

[0160] That is, the position of the sealing member 320 can be determined based on the center position of the sealing member 320. When the sealing member 320 closes the communication port 231, the center position of the sealing member 320 can be located in the same plane as the outer surface of the drawer door 220, so as to ensure the sealing effect of the sealing member 320.

[0161] The moving direction of the sealing member 320 is approximately parallel to the line direction of the first position and the second position, and there can be an included angle between the moving direction of the sealing member 320 and the extending direction of the second connecting rod 342, and the size of the included angle can be less than or equal to 30 degrees.

[0162] For example, the included angle can be in any included angle range of 0-10 degrees, 10-15 degrees, 15-20 degrees, 20-25 degrees, and 25-30 degrees, so as to ensure that the moving direction of the sealing member 320 is approximately parallel to the line direction of the first position and the second position, and the sealing member 320 can move towards or away from the communication port 231 approximately perpendicularly to the plane where the communication port 231 is located.

[0163] In some embodiments, the line direction of the communication port 231 and the rotation axis 347 of the transmission member 340 can be perpendicular to the orientation of the communication port 231. The position of the communication port 231 can be determined according to the surface of the communication port 231 facing outward, and the orientation of the communication port 231 can be perpendicular to the drawer door 220, or the orientation of the communication port 231 can form an included angle with the drawer door 220, so that the sealing member 320 can be tilted to close or disengage the communication port 231 relative to the direction perpendicular to the drawer door 220.

[0164] For example, when the sealing member 320 closes the communication port 231, at least part of the sealing member 320 is located outside the communication port 231. In the direction parallel to the orientation of the communication port 231, the second end 3423 of the second connecting rod 342 can be closer to the communication port 231 relative to the first end 3422 of the second connecting rod 342.

[0165] By adopting the above technical solution, the line direction of the communication port 231 and the rotation axis 347 of the transmission member 340 is perpendicular to the orientation of the communication port 231, which can make the moving direction of the sealing member 320 relative to the communication port 231 approximately parallel to the line direction of the first position and the second position.

[0166] In the direction parallel to the orientation of the communication port 231, the second end 3423 of the second connecting rod 342 is closer to the communication port 231 relative to the first end 3422 of the second connecting rod 342, and the distance between the first end 3422 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341 is greater than the distance between the second end 3423 of the second connecting rod 342 and the first end 3411 of the first connecting rod 341. The transmission member 340 can form a force-saving lever structure, and the first end 3422 of the second connecting rod 342 and the second end 3423 of the second connecting rod 342 will not be in contact with the surface of the drawer 200, thereby reducing the interference of the drawer 200 with the rotation process of the transmission member 340.

[0167] It should be noted that the line direction of the communication port 231 and the rotating shaft 347 of the transmission member 340 is perpendicular to the orientation of the communication port 231. When the sealing member 320 starts to close or open the communication port 231, the line of the sealing member 320 and the rotating shaft 347 is approximately perpendicular to the orientation of the communication port 231, so that the direction of the sealing member 320 relative to the communication port 231 is approximately parallel to the line direction of the first position and the second position and the orientation of the communication port 231, thereby making the sealing member 320 more easily close or open the communication port 231, and thereby making the use process of the pressure relief device 300 more convenient, and reducing the possibility of affecting the sealing effect due to the deformation of the sealing member 320.

[0168] Please refer to FIGS. 8-10, the reinforcing member 344 can be arranged between the rotating shaft 347 and the second end 3423 of the second connecting rod 342. The first end of the reinforcing member 344 can rotate around the rotating shaft 347, and the second end of the reinforcing member 344 can be fixedly connected with the second end 3423 of the second connecting rod 342. The reinforcing member 344, the first connecting rod 341, and the part of the second connecting rod 342 between the second end 3423 and the connecting point together enclose a triangle, so that the structure of the transmission member 340 is more stable.

[0169] The reinforcing member 344 and the second connecting rod 342 can be fixedly connected. For example, the reinforcing member 344 and the second connecting rod 342 can be connected by splicing or threaded connection, so that the reinforcing member 344 and the second connecting rod 342 can be separately formed, and the connection position of the reinforcing member 344 and the second connecting rod 342 is more flexible to adapt to different use modes.

[0170] Alternatively, the reinforcing member 344 and the second connecting rod 342 can also be integrally arranged, so that the forming process of the reinforcing member 344 and the second connecting rod 342 is more convenient. And, compared with the spliced reinforcing member 344 and the second connecting rod 342, the connection structure of the integrally formed reinforcing member 344 and the second connecting rod 342 is more stable, the connection position of the reinforcing member 344 and the second connecting rod 342 does not need to be positioned, and the installation process of the reinforcing member 344 and the second connecting rod 342 is also more convenient.

[0171] Alternatively, the reinforcing member 344 can also be integrally arranged with the connecting portion 343, so that the reinforcing member 344 and the connecting portion 343 can be integrally installed on the second end 3423 of the second connecting rod 342, and the reinforcing member 344 is installed on the rotating shaft 347, thereby making the installation of the reinforcing member 344 and the connecting portion 343 more convenient.

[0172] Since the connecting portion 343, the first connecting rod 341 and the second connecting rod 342 are fixedly connected, and the sealing member 320 is fixedly connected to the connecting portion 343, the moving direction of the sealing member 320 is approximately perpendicular to the connecting direction of the sealing member 320 and the rotating shaft 347 of the transmission member 340, and when the sealing member 320 starts to close or separate from the communicating port 231, the moving direction of the sealing member 320 can be approximately parallel to the orientation of the communicating port 231 by vertically arranging the connecting direction of the communicating port 231 and the rotating shaft 347 of the transmission member 340 and the orientation of the communicating port 231.

[0173] Please refer to FIGS. 13-16, in some embodiments, the area of the cross section of the sealing member 320 perpendicular to the connecting direction of the first position and the second position can gradually decrease along the direction close to the communicating port 231.

[0174] When the control button 330 drives the sealing member 320 to gradually separate from the communicating port 231 through the transmission member 340, since the accommodating space 230 is in a negative pressure state, the accommodating space 230 will generate a certain adsorption force on the sealing member 320, and by arranging the cross-sectional area of the sealing member 320 to gradually decrease along the direction close to the communicating port 231, the process of the sealing member 320 separating from the communicating port 231 is more convenient.

[0175] In addition, when it is needed to move the control button 330 from the second position to the first position to enable the sealing member 320 to close the communicating port 231, the sealing member 320 can be more easily inserted into the communicating port 231, thereby being able to play a certain guiding role through the sealing member 320, reducing the possibility of deformation of the sealing member 320, and ensuring the sealing effect of the sealing member 320.

[0176] It should be noted that since the accommodating space 230 is in a negative pressure state, the accommodating space 230 will generate a certain adsorption force on the sealing member 320, and the process of the sealing member 320 separating from the communicating port 231 is resisted by a certain resistance. When the sealing member 320 starts to close or separate from the communicating port 231, the moving direction of the sealing member 320 can be approximately parallel to the orientation of the communicating port 231, and the surface of the sealing member 320 towards the inner wall of the communicating port 231 can jointly contact the inner wall of the communicating port 231, thereby increasing the contact area of the sealing member 320 and the inner wall of the communicating port 231, and reducing the possibility of deformation of the sealing member 320.

[0177] It should be noted that when the sealing member 320 starts to close or leave the communication port 231, if the moving direction of the sealing member 320 is large with the orientation of the communication port 231, the surface of the sealing member 320 towards the communication port 231 is arranged to be inclined relative to the communication port 231, the area of the surface of the sealing member 320 towards the communication port 231 in contact with the inner wall of the communication port 231 is small, and the part of the sealing member 320 in contact with the inner wall is prone to plastic deformation, thereby affecting the sealing performance and service life of the sealing member 320. Therefore, by arranging the sealing member 320 to be approximately parallel to the orientation of the communication port 231 when the sealing member 320 starts to close or leave the communication port 231, the possibility of deformation of the sealing member 320 can be reduced, thereby ensuring the sealing performance and service life of the sealing member 320.

[0178] In some embodiments of the present application, the control button 330 can be provided with a limiting groove 332. The first end 3422 of the second connecting rod 342 can move relative to the extension direction of the limiting groove 332.

[0179] The connecting line of the starting position of the moving process of the first end 3422 of the second connecting rod 342 can be perpendicular to the connecting line direction of the first position and the second position, and the first end 3422 of the second connecting rod 342 is located in the limiting groove 332 to play a certain guiding role on the movement of the first end 3422 of the second connecting rod 342 through the limiting groove 332. When the first end 3422 of the second connecting rod 342 is located at the first end of the limiting groove 332, the sealing member 320 can close the communication port 231. When the first end 3422 of the second connecting rod 342 is located at the second end of the limiting groove 332, the sealing member 320 can leave the communication port 231.

[0180] In some embodiments, the first end of the limiting groove 332 is the end of the limiting groove 332 away from the communication port 231, and the second end of the limiting groove 332 is the end of the limiting groove 332 close to the communication port 231.

[0181] By adopting the above technical solution, when the control button 330 drives the sealing member 320 to leave the communication port 231 through the transmission member 340, the control button 330 can move from the first position to the second position, so that the first end 3422 of the second connecting rod 342 can move from the first end of the limiting groove 332 to the second end of the limiting groove 332, thereby enabling the limiting groove 332 to play a certain limiting guiding role on the end of the second connecting rod 342, and making the rotating process of the second connecting rod 342 more stable.

[0182] And, when the first end 3422 of the second link 342 is located at the second end of the limiting groove 332, the sealing member 320 is separated from the communication port 231, so that the limiting groove 332 of the control button 330 can limit the second end 3423 of the second link 342, reducing the possibility of deformation or damage of the second link 342 due to excessive rotation angle, and ensuring normal use of the second link 342.

[0183] The connecting direction of the first position and the second position is set as a first direction, and the extending direction of the limiting groove 332 is set as a second direction, and the first direction and the second direction are perpendicular to each other.

[0184] When the control button 330 moves from the first position to the second position along the first direction, the control button 330 can drive the first link 341 and the second link 342 to rotate around the rotating shaft 347, so that the first end 3422 of the second link 342 approaches the drawer door 220 along the first direction, and the second end 3423 of the second link 342 is away from the drawer door 220 along the first direction. And, the first end 3422 of the second link 342 gradually moves away from the rotating shaft 347 in the second direction within the limiting groove 332.

[0185] When the control button 330 moves away from the drawer door 220 along the first direction, the control button 330 can drive the first link 341 and the second link 342 to rotate around the rotating shaft 347, so that the first end 3422 of the second link 342 is away from the drawer door 220 along the first direction, and the second end 3423 of the second link 342 is close to the drawer door 220 along the first direction. And, the first end 3422 of the second link 342 gradually approaches the rotating shaft 347 in the second direction within the limiting groove 332.

[0186] Please refer to FIG. 8, FIG. 9 and FIG. 11, in some embodiments, the pressure relief device 300 can include a reset member 346. The first end of the reset member 346 can be connected to the base 310, and the second end of the reset member 346 can be connected to the control button 330, and the reset member 346 is configured to drive the control button 330 to move towards the first position.

[0187] When it is necessary to adjust the position of the sealing member 320 to move the sealing member 320 relative to the communication port 231 through the control button 330, the control button 330 is moved so that the control button 330 moves from the first position to the second position, the reset member 346 is deformed, and the control button 330 drives the sealing member 320 to separate from the communication port 231, thereby realizing the pressure relief process of the containing space 230 of the drawer 200.

[0188] When the pressure relief process of the accommodation space 230 of the drawer 200 is completed, the reset member 346 can be reset, and the reset member 346 drives the control button 330 to move from the second position to the first position, so that the control button 330 drives the sealing member 320 to close the communication port 231, so as to reduce the possibility that the sealing member 320 is not reset and the accommodation space 230 cannot be sealed, affecting the preservation effect of the food materials.

[0189] For example, the reset member 346 can be a torsion spring type reset member 346. The torsion spring type reset member 346 can be arranged on the rotating shaft 347, and the torsion spring type reset member 346 can be configured to drive the first connecting rod 341 and the second connecting rod 342 to rotate, so that the first end 3422 of the second connecting rod 342 is away from the drawer door 220 along the first direction, and the second end 3423 of the second connecting rod 342 is close to the drawer door 220 along the first direction.

[0190] When the pressure relief process of the accommodation space 230 of the drawer 200 is completed, the reset member 346 drives the first connecting rod 341 and the second connecting rod 342 to rotate, so that the first end 3422 of the second connecting rod 342 is away from the drawer door 220 along the first direction, and the second end 3423 of the second connecting rod 342 is close to the drawer door 220 along the first direction, and the elastic member 345 drives the control button 330 to move from the second position to the first position. In this way, under the joint action of the reset member 346 and the elastic member 345, the control button 330 and the transmission member 340 drive the sealing member 320 to close the communication port 231 more quickly.

[0191] Please refer to FIG. 14 and FIG. 15, in some embodiments, the functional element 400 comprises a reminding member 410. The reminding member 410 can be configured to at least indicate that the drawer 200 is in a pressure relief state when the control button 330 is in the second position during the process that the control button 330 drives the sealing member 320 to separate from the communication port 231, and the accommodation space 230 is in communication with the outside of the drawer 200 through the communication port 231.

[0192] When the control button 330 is in the second position during the process that the control button 330 drives the sealing member 320 to separate from the communication port 231, the sealing member 320 completely separates from the communication port 231, so that the accommodation space 230 is in communication with the outside of the drawer 200 through the communication port 231, and the reminding member 410 can be configured to indicate that the drawer 200 is in a pressure relief state, so that the user can more conveniently and quickly determine the state of the drawer 200 completing the pressure relief through the reminding member 410.

[0193] When the control button 330 is not in the second position during the process that the control button 330 drives the sealing member 320 to separate from the communication port 231, the reminding member 410 can be configured to indicate that the drawer 200 is not in a pressure relief state, and the gas pressure of the accommodation space 230 is less than the atmospheric pressure.

[0194] In the process of controlling the sealing member 320 to be separated from the communication port 231 by the control button 330, when the control button 330 is not in the second position, the reminding member 410 is configured to indicate that the drawer 200 is not in the pressure relief state, the containing space 230 is still in the negative pressure state, and the drawer 200 has a binding force with the cabinet 100. The reminding member 410 can be configured to remind the user not to pull the drawer 200, so as to avoid the possibility of deformation or damage between the drawer 200 and the cabinet 100 due to excessive force, and prolong the service life of the drawer 200.

[0195] The reminding member 410 includes a control end and a display window connected with the control end. The control end of the reminding member 410 can be close to the second position relative to the first position. The display window of the reminding member 410 can be arranged on the drawer door 220. When the control button 330 is in the second position, the control button 330 is in contact with the control end of the reminding member 410, so as to trigger the control end of the reminding member 410 to control the display window of the reminding member 410 to display that the drawer 200 is in the pressure relief state. When the control button 330 is not in the second position, the control button 330 is not in contact with the control end of the reminding member 410, and the control end of the reminding member 410 triggers the display window of the reminding member 410 to display that the drawer 200 is not in the pressure relief state.

[0196] Please refer to FIG. 15 and FIG. 17. In some embodiments, the functional element 400 can include the reminding member 410 and a pressure sensing member 411, and the pressure sensing member 411 can be connected with the control end of the reminding member 410. The reminding member 410 can be configured to always not contact the control button 330 during the movement of the control button 330. The pressure sensing member 411 can be arranged in the containing space 230 and configured to obtain the air pressure of the containing space 230. The reminding member 410 is configured to:

[0197] When the control button 330 is in the first position and the pressure sensing member 411 obtains that the containing space 230 is in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is in the locked state. When the control button 330 is in the second position and the pressure sensing member 411 obtains that the containing space 230 is not in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is in the pressure relief state.

[0198] When the control button 330 is between the first position and the second position and the pressure sensing member 411 obtains that the containing space 230 is in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is not in the pressure relief state. When the control button 330 is between the first position and the second position and the pressure sensing member 411 obtains that the containing space 230 is not in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is in the pressure relief state.

[0199] When the control button 330 is in the first position and the pressure sensing member 411 obtains that the containing space 230 is in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is in the locking state, so as to remind the user not to open the drawer 200 at this time. When the control button 330 is in the second position, the reminding member 410 is configured to indicate that the drawer 200 is in the pressure relief state, so as to remind the user that the drawer 200 can be opened at this time.

[0200] In the process that the control button 330 drives the sealing member 320 to be separated from the communication port 231, the control button 330 is between the first position and the second position, and the pressure sensing member 411 obtains that the containing space 230 is not in the negative pressure state, so that the containing space 230 can be communicated with the outside of the drawer 200 through the communication port 231. The reminding member 410 can be configured to indicate that the drawer 200 is in the pressure relief state, so that the user can determine the state of the drawer 200 completing the pressure relief more conveniently and quickly through the reminding member 410.

[0201] In the process that the control button 330 drives the sealing member 320 to be separated from the communication port 231, when the control button 330 is between the first position and the second position, and the pressure sensing member 411 obtains that the containing space 230 is not in the negative pressure state, the reminding member 410 is configured to indicate that the drawer 200 is not in the pressure relief state, and the containing space 230 is still in the negative pressure state. The drawer 200 and the cabinet 100 have a binding force. The reminding member 410 can be configured to remind the user not to pull the drawer 200, so as to avoid the possibility that the drawer 200 and the cabinet 100 are deformed or damaged due to excessive force, and prolong the service life of the drawer 200.

[0202] The control end of the reminding member 410 can be close to the second position relative to the first position. When the control button 330 is in the second position, the control button 330 is in contact with the control end of the reminding member 410, so that the reminding member 410 can indicate that the drawer 200 is in the pressure relief state.

[0203] When the control button 330 is not in the second position, the control button 330 is not in contact with the control end of the reminding member 410. When the pressure sensing member 411 obtains that the containing space 230 is in the negative pressure state, the pressure sensing member 411 and the control button 330 jointly control the reminding member 410, so that the reminding member 410 can indicate that the drawer 200 is not in the pressure relief state.

[0204] When the control button 330 is not in the second position, the control button 330 is not in contact with the control end of the reminding member 410. When the pressure sensing member 411 obtains that the containing space 230 is not in the negative pressure state, the pressure sensing member 411 and the control button 330 jointly control the reminding member 410, so that the reminding member 410 can indicate that the drawer 200 is in the pressure relief state.

[0205] It is easy to understand that when the containing space 230 of the drawer 200 is depressurized, the sealing member 320 can be driven away from the communication port 231 by the control button 330 to enable the air outside the drawer 200 to enter the containing space 230, and the drawer 200 is switched from the locked state to the depressurized state, thereby realizing the depressurization process of the drawer 200. Moreover, the reminding member 410 and the pressure sensing member 411 cooperate with each other to detect the air pressure in the containing space 230 and remind the user through the reminding member 410, thereby reducing the possibility of damage to the drawer 200 and the sealing ring 240.

[0206] Referring to FIG. 17, in some embodiments, the functional element 400 can include an air exchange member 420. The air exchange member 420 is arranged in the containing space 230, and the air exchange member 420 can be configured to accelerate the flow speed of the air in the containing space 230. The air exchange member 420 can be configured such that, for example, when the control button 330 is in the first position, the air exchange member 420 is not in the working state. When the control button 330 is not in the first position, the air exchange member 420 is in the working state, and the air exchange member 420 is at least configured to drive the air to flow between the outside of the drawer 200 and the containing space 230.

[0207] It should be noted that the air exchange member 420 arranged in the containing space 230 can be configured to mean that the air exchange member 420 is arranged in the containing space 230 as a whole, or can also be configured to mean that part of the air exchange member 420 is arranged in the containing space 230, so as to be able to accelerate the flow speed of the air in the containing space 230.

[0208] By adopting the above technical solution, when the control button 330 is in the first position, the drawer 200 is in the locked state, the containing space 230 is in the negative pressure state, and the air exchange member 420 is not in the working state, so that the air exchange member 420 is not needed to exchange the air in the containing space 230.

[0209] When the control button 330 is not in the first position, the control button 330 drives the sealing member 320 to be away from the communication port 231, the containing space 230 can be communicated with the outside of the drawer 200 through the communication port 231, and the air exchange member 420 can be in the working state. The air exchange member 420 is at least configured to drive the air to flow between the outside of the drawer 200 and the containing space 230, thereby being able to accelerate the flow of the air in the containing space 230 and reduce the possibility of the food materials in the containing space 230 producing odor.

[0210] It should be noted that when the food is stored in the accommodation space 230 for a long time, the accommodation space 230 is in a negative pressure state, so that the accommodation space 230 is easy to attach the smell of the food, thereby affecting the storage of the food. In the process of the control button 330 driving the sealing piece 320 to separate from the communication port 231, although air can enter the accommodation space 230 through the communication port 231, due to the small flow speed of the air, the circulation of the air after entering the accommodation space 230 is slow, so that the smell of the food in the accommodation space 230 is not easy to dissipate.

[0211] The control end of the air exchange piece 420 can be close to the second position relative to the first position. When the control button 330 is in the second position, the control button 330 is in contact with the control end of the air exchange piece 420 to exchange air in the accommodation space 230 through the air exchange piece 420. When the control button 330 is not in the second position, the control button 330 is not in contact with the control end of the air exchange piece 420, so that the air exchange piece 420 does not exchange air in the accommodation space 230.

[0212] By arranging the air exchange piece 420 in the accommodation space 230, the air exchange piece 420 can at least be configured to drive air to flow outside the drawer 200 and in the accommodation space 230, thereby accelerating the flow of air in the accommodation space 230, accelerating the dissipation speed of the smell of the food in the accommodation space 230, and reducing the possibility of the food in the accommodation space 230 producing odor.

[0213] In some embodiments, the functional element 400 can include the air exchange piece 420 and the position sensor 421, the position sensor 421 being configured to obtain the position of the accommodation space 230 and the cabinet 100, the position sensor 421 being connected with the control end of the air exchange piece 420, and the air exchange piece 420 being configured to: when the control button 330 is not in the first position and the position sensor 421 obtains that the accommodation space 230 is towards the cabinet 100, the air exchange piece 420 is not in the working state. When the control button 330 is not in the first position and the position sensor 421 obtains that at least part of the accommodation space 230 is not towards the cabinet 100, the air exchange piece 420 is in the working state, and the air exchange piece 420 communicates outside the drawer 200 through the accommodation space 230.

[0214] When the control button 330 is in the second position, the control button 330 is in contact with the control end of the air exchange piece 420 to exchange air in the accommodation space 230 through the air exchange piece 420. When the control button 330 is not in the first position and the position sensor 421 obtains that the accommodation space 230 is towards the cabinet 100, the air exchange piece 420 is not in the working state, and the drawer 200 is located in the mounting cavity 110, so that the air exchange piece 420 does not exchange air in the accommodation space 230.

[0215] When the control button 330 is not in the first position and the position sensor 421 obtains that at least part of the containing space 230 is not towards the cabinet 100, the drawer 200 is outside the installation cavity 110, and the air exchange member 420 is in the working state, the air exchange member 420 is communicated with the outside of the drawer 200 through the containing space 230 to exchange air in the containing space 230 through the air exchange member 420.

[0216] By adopting the above technical solution, when the control button 330 is in the first position and the position sensor 421 obtains that the containing space 230 is towards the cabinet 100, the drawer 200 is in the locking state, the containing space 230 is in the negative pressure state, and the air exchange member 420 can not be in the working state, so that the containing space 230 does not need to be exchanged through the air exchange member 420.

[0217] When the control button 330 is not in the first position and the position sensor 421 obtains that at least part of the containing space 230 is not towards the cabinet 100, the control button 330 drives the sealing member 320 to separate from the communication port 231, the containing space 230 can be communicated with the outside of the drawer 200 through the communication port 231 and the top, and the air exchange member 420 can be in the working state, and the air exchange member 420 is at least configured to drive air to flow between the outside of the drawer 200 and the containing space 230, so that the flow of air in the containing space 230 can be accelerated, and the possibility of odor generated by food materials in the containing space 230 can be reduced.

[0218] It is easy to understand that the functional element 400 can include at least one of the reminding member 410 and the air exchange member 420, and the embodiments of the present application do not make further limitation thereon.

[0219] In summary, when the drawer 200 is in the locking state, the drawer is located in the installation cavity 110, and the drawer 200 forms the containing space 230 in the negative pressure state to accommodate food materials through the containing space 230 in the negative pressure state. The containing space 230 has the communication port 231 communicated with the outside of the drawer 200, and the sealing member 230 blocks the communication port 231, so as to ensure the sealing of the containing space 230, and the outside of the drawer 200 is not communicated with the containing space 230.

[0220] When the containing space 230 of the drawer 200 is depressurized, the control button 330 can be pressed, so that the control button 330 moves from the first position towards the second position, so that the sealing member 320 is driven to separate from the communication port 231 through the control button 330, so that the air outside the drawer 200 enters the containing space 230, and the drawer 200 is converted from the locking state to the depressurization state, so as to realize the depressurization process of the drawer 200, so that the depressurization process of the drawer 200 is more convenient, and the containing space 230 of the drawer 200 can be exposed after the drawer 200 is depressurized, so as to realize the taking and placing of food materials in the containing space 200.

[0221] And the sealing member 320 configured to close or open the communication port 231 is movably arranged inside the base 310, the base 310 can play a certain isolation and protection effect on the sealing member 320 and the communication port 231, so that the sealing member 320 and the communication port 231 will not be disturbed by external sundries, reducing the possibility of the communication port being blocked by sundries, and can reduce the possibility of the sealing member 320 being deformed and damaged by external impact, and ensure the sealing effect of the sealing member 320 on the communication port 231.

[0222] In addition, the transmission member 340 connects the control button 330 and the sealing member 320, when it is necessary to adjust the position of the sealing member 320 to move the sealing member 320 relative to the communication port 231 through the control button 330, the control button 330 can be moved, so that the control button 330 can drive the sealing member 320 to close or open the communication port 231 through the transmission member 340, the distance between the first end of the transmission member 340 and the rotating shaft 347 of the transmission member 340 is greater than the distance between the second end of the transmission member 340 and the rotating shaft 347 of the transmission member 340, so that the transmission member 340 can form a force-saving lever structure, and the movement of the sealing member 320 is more labor-saving and convenient, thereby making the pressure relief process of the drawer 200 containing space 230 more convenient.

[0223] The refrigerator provided by the embodiment of the present application also provides a refrigerator comprising a cabinet 100, a drawer 200 and a pressure relief device 300.

[0224] The drawer 200 is movably arranged in the mounting cavity 110 of the cabinet 100. The drawer 200 forms a containing space 230 in a negative pressure state, and the containing space 230 has a communication port 231 communicating with the outside of the drawer 200.

[0225] The pressure relief device 300 is arranged in the drawer 200. The pressure relief device 300 comprises a sealing member 320, a control button 330 and a transmission member 340. The sealing member 320 is movably arranged in the communication port 231. The control button 330 is connected with the sealing member 320 through the transmission member 340. The transmission member 340 is rotatably arranged in the drawer 200, and the transmission member 340 connects the control button 330 and the sealing member 320. The force arm of the control button 330 is greater than the force arm of the sealing member 320.

[0226] When the containing space 230 of the drawer 200 is relieved, the control button 330 drives the transmission member 340 to rotate relative to the drawer 200, and the force of the transmission member 340 on the sealing member 320 is greater than the force of the control button 330 on the transmission member 340.

[0227] In addition, when the containing space 230 of the drawer 200 is depressurized, the control button 330 can also control the functional element 400 through the control end of the functional element 400, so that the functional element 400 is turned on or off, thereby enabling other functions of the drawer 200 to be realized through the functional element 400, so that the depressurization device 300 can not only be configured to realize the depressurization process of the containing space 230 of the drawer 200, but also control the turning on or off of the functional element 400, thereby making the function of the depressurization device 300 more abundant.

[0228] The functional element 400 can include a reminding element 410. When the control button 330 is in the first position and the pressure sensing element 411 obtains that the containing space 230 is in a negative pressure state, the reminding element 410 is configured to indicate that the drawer 200 is in a locked state, so as to remind the user not to open the drawer 200 at this time. When the control button 330 is in the second position, the reminding element 410 is configured to indicate that the drawer 200 is in a depressurization state, so as to remind the user that the drawer 200 can be opened at this time.

[0229] In the process that the control button 330 drives the sealing element 320 to be separated from the communication port 231, the control button 330 is between the first position and the second position, and the pressure sensing element 411 obtains that the containing space 230 is not in a negative pressure state, so that the containing space 230 can be in communication with the outside of the drawer 200 through the communication port 231, and the reminding element 410 can be configured to indicate that the drawer 200 is in a depressurization state, thereby enabling the user to more conveniently and quickly determine the state of the drawer 200 completing the depressurization through the reminding element 410.

[0230] The functional element 400 can include an air exchange element 420. When the control button 330 is in the first position, the drawer 200 is in a locked state, the containing space 230 is in a negative pressure state, and the air exchange element 420 is not in a working state, so that the air exchange element 420 does not need to be used to exchange air in the containing space 230.

[0231] When the control button 330 is not in the first position, the control button 330 drives the sealing element 320 to be separated from the communication port 231, the containing space 230 can be in communication with the outside of the drawer 200 through the communication port 231, and the air exchange element 420 can be in a working state, and the air exchange element 420 is at least configured to drive air to flow between the outside of the drawer 200 and the containing space 230, thereby being capable of accelerating the flow of air in the containing space 230 and reducing the possibility that food materials in the containing space 230 produce odors.

[0232] The embodiment of the present application also provides a refrigerator, which includes a cabinet 100, a drawer 200, a depressurization device 300 and a functional element 400.

[0233] The drawer 200 is movably arranged in the mounting cavity 110 of the cabinet 100. When the drawer 200 is in the locked state, the drawer 200 is located in the mounting cavity 110, and the drawer 200 forms a containing space 230 in a negative pressure state, the containing space 230 having a communication port 231 communicating with the outside of the drawer 200. When the drawer 200 is in the pressure relief state, the drawer 200 is movable relative to the cabinet 100.

[0234] The pressure relief device 300 comprises a sealing member 320 and a control button 330 connected with each other. The sealing member 320 is movably arranged in the communication port 231, and the control button 330 is configured to at least drive the sealing member 320 to close or open the communication port 231.

[0235] When the containing space 230 of the drawer 200 is relieved of pressure, the sealing member 320 is driven by the control button 330 to be separated from the communication port 231, so that the air outside the drawer 200 enters the containing space 230, and the drawer 200 is switched from the locked state to the pressure relief state.

[0236] The control button 330 controls the opening or closing of the functional element 400 through the control end of the functional element 400.

[0237] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0238] In order to facilitate explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A refrigerator, characterized in that, include: A housing that defines a mounting cavity having a front port; The drawer is movably disposed within the mounting cavity via the front port; The drawer forms a receiving space under negative pressure, and the drawer has a connecting opening that connects the receiving space to the outside. A pressure relief device is provided in the drawer; the pressure relief device includes a seal and control buttons. The sealing element is movably disposed at the communication port; The control button is movably disposed in the drawer and is connected to the sealing element. The control button has a first position and a second position. When the control button is in the first position, the control button controls the sealing element to close the communication port. When the control button is in the second position, the control button controls the sealing element to disengage from the communication port.

2. The refrigerator according to claim 1, characterized in that, The drawer includes a main body and a drawer door, the main body forming the receiving space, and the drawer door being located at the front end of the main body; The pressure relief device is disposed on the drawer door. When the control button is in the first position, at least a portion of the control button protrudes from the surface of the drawer door away from the main body. When the control button is in the second position, the control button is approximately flush with the surface of the drawer door away from the main body.

3. The refrigerator according to claim 2, characterized in that, The pressure relief device also includes a base, and the control button is connected to the base. The base is disposed between the drawer door and the main body, or the base is integrally disposed with the drawer door or the main body. The drawer door is provided with an opening, and the control button is movably disposed in the opening in a direction that is closer to or farther from the main body.

4. The refrigerator according to claim 1, characterized in that, The pressure relief device also includes a transmission component, the input end of which is connected to the control button, and the output end of which is connected to the sealing component.

5. The refrigerator according to claim 4, characterized in that, The transmission component includes a first link and a second link, wherein the first end of the first link is rotatably connected to the drawer; The middle part of the second link is connected to the second end of the first link, the first end of the second link is connected to the control button, and the second end of the second link is connected to the seal.

6. The refrigerator according to claim 5, characterized in that, The distance between the first end of the second link and the first end of the first link is greater than the distance between the second end of the second link and the first end of the first link.

7. The refrigerator according to claim 1, characterized in that, The pressure relief device further includes a base and an elastic element. A first end of the elastic element is connected to the base, and a second end of the elastic element is connected to the control button. The elastic element is configured to at least drive the control button to move toward the first position.

8. The refrigerator according to claim 2, characterized in that, The control button is provided with a limiting part, which is located between the drawer door and the main body; When the control button is in the first position, the limiting part abuts against the drawer door from the surface away from the main body; when the control button is in the second position, the limiting part is spaced apart from the drawer door.

9. The refrigerator according to any one of claims 2-8, characterized in that, A flow channel is provided between the drawer door and the main body. The flow channel is configured to allow airflow. The flow channel and the accommodating space are connected through the connecting port.

10. The refrigerator according to claim 9, characterized in that, Within the projection plane of the drawer door along the extension direction of the connecting opening, the control button and the connecting opening are offset, with the control button facing the main body and the connecting opening facing the drawer door.

11. A refrigerator, characterized in that, Includes the cabinet, drawers, and pressure relief device; The drawer is movably disposed within the mounting cavity of the housing; the drawer forms a receiving space that can be in a negative pressure state, and the drawer has a communication port that connects the receiving space to the outside; A pressure relief device is provided in the drawer; the pressure relief device includes a seal and a control button; the seal is movably provided in the communication port, the control button is movably provided in the drawer, the control button is connected to the seal, and the control button has a first position and a second position; When the accommodating space is under negative pressure, the control button is in the first position, and the control button controls the seal to close the communication port; when the pressure in the accommodating space of the drawer is released, the control button moves from the first position to the second position, and the control button drives the seal to disengage from the communication port, so that air from the outside of the drawer can enter the accommodating space.

12. A refrigerator, characterized in that, include: A housing that defines a mounting cavity having a front port; A drawer is movably disposed within the mounting cavity via the front port, the drawer forming a receiving space that can be in a negative pressure state, and the drawer having a communication port that connects the receiving space to the outside. A pressure relief device is provided in the drawer; the pressure relief device includes a seal, a control button and a transmission component, the seal is movably disposed in the communication port, and the control button is connected to the seal through the transmission component; The transmission component is connected to the drawer and can rotate relative to the drawer; the first end of the transmission component is connected to the control button, and the second end of the transmission component is connected to the seal.

13. The refrigerator according to claim 12, characterized in that, The distance between the first end of the transmission component and the rotation axis of the transmission component is greater than the distance between the second end of the transmission component and the rotation axis of the transmission component.

14. The refrigerator according to claim 12, characterized in that, The transmission component includes a first link and a second link, wherein the first end of the first link is rotatably connected to the drawer; The middle part of the second link is connected to the second end of the first link, the first end of the second link serves as the first end of the transmission component and is connected to the control button, and the second end of the second link serves as the second end of the transmission component and is connected to the seal. The distance between the first end of the second link and the first end of the first link is greater than the distance between the second end of the second link and the first end of the first link.

15. The refrigerator according to claim 14, characterized in that, The first link is perpendicular to the second link; The second link has a connection point in the middle, which connects to the second end of the first link. The distance between the first end of the second link and the connection point is greater than the distance between the second end of the second link and the connection point.

16. The refrigerator according to claim 15, characterized in that, The pressure relief device also includes a base, and the control button is movably disposed on the base, the control button having a first position and a second position; When the control button is in the first position, the control button controls the seal to close the communication port; when the control button moves from the first position to the second position, the control button causes the seal to disengage from the communication port.

17. The refrigerator according to claim 16, characterized in that, The line connecting the first position and the second position is parallel to the orientation of the connecting port; The second end of the second connecting rod is provided with a connecting part, and the end of the connecting part opposite to the second connecting rod is connected to the sealing element; the line connecting the rotating shaft of the sealing element and the transmission element is arranged parallel to the extension direction of the second connecting rod. When the control button drives the seal to disengage from the communication port via the transmission component, the movement direction of the control button is parallel to the movement direction of the seal.

18. The refrigerator according to claim 17, characterized in that, The line connecting the communication port and the rotation axis of the transmission component is perpendicular to the orientation of the communication port. When the seal closes the communication port, at least a portion of the seal is located outside the communication port; in a direction parallel to the orientation of the communication port, the second end of the second link is closer to the communication port than the first end of the second link.

19. The refrigerator according to claim 17, characterized in that, The area of ​​the cross section of the seal perpendicular to the line connecting the first and second positions gradually decreases along the direction closer to the opening.

20. The refrigerator according to claim 16, characterized in that, The control button is provided with a limit groove, and the first end of the second link can move relative to the extension direction of the limit groove; The direction of movement of the first end of the second connecting rod is perpendicular to the direction of the line connecting the first position and the second position; when the first end of the second connecting rod is located at the first end of the limiting groove, the seal closes the communication port; when the first end of the second connecting rod is located at the second end of the limiting groove, the seal disengages from the communication port.

21. The refrigerator according to any one of claims 12-20, characterized in that, The pressure relief device includes an elastic element, a first end of which is connected to the drawer, and a second end of which is connected to the control button. The elastic element is configured to at least move the seal toward the communication port.

22. A refrigerator, characterized in that, Includes the cabinet, drawers, and pressure relief device; The drawer is movably disposed within the mounting cavity of the box body; the drawer forms a receiving space under negative pressure, and the drawer has a communication port that connects the receiving space to the outside; The pressure relief device is located in the drawer; the pressure relief device includes a seal, a control button and a transmission component, the seal is movably disposed in the communication port, and the control button is connected to the seal through the transmission component; The transmission component is rotatably mounted on the drawer. The transmission component connects the control button and the sealing component. The lever arm of the control button is greater than the lever arm of the sealing component. When the drawer's storage space is depressurized, the control button causes the transmission component to rotate relative to the drawer. The force exerted by the transmission component on the seal is greater than the force exerted by the control button on the transmission component.

23. A refrigerator, characterized in that, include: A housing that defines a mounting cavity having a front port; The drawer is movably disposed within the mounting cavity via the front port; When the drawer is in the locked state, the drawer is located in the mounting cavity, the drawer forms a receiving space under negative pressure, and the drawer has a communication port that connects the receiving space to the outside. When the drawer is in a depressurized state, the drawer is movable relative to the cabinet body; The pressure relief device includes a connected seal and a control button. The seal is movably disposed in the communication port. When the drawer is in the locked state, the control button causes the seal to close the communication port. When the drawer changes from the locked state to the pressure relief state, the control button causes the seal to disengage from the communication port. A functional element, wherein the control terminal of the functional element is connected to the control button, and the control button is further configured to control the opening or closing of the functional element.

24. The refrigerator according to claim 23, characterized in that, The pressure relief device also includes a base, and the control button is movably disposed on the base, the control button having a first position and a second position; When the control button is in the first position, the control button controls the seal to close the communication port; when the control button moves from the first position to the second position, the control button causes the seal to disengage from the communication port.

25. The refrigerator according to claim 24, characterized in that, The functional element includes a reminder component, which is configured to at least: During the process of the control button causing the seal to disengage from the communication port, when the control button is in the second position, the reminder is configured to indicate that the drawer is in the depressurization state; when the control button is not in the second position, the reminder is configured to indicate that the drawer is not in the depressurization state.

26. The refrigerator according to claim 24, characterized in that, The functional element includes an alerting component and a pressure sensor, the pressure sensor being connected to the control terminal of the alerting component, and the alerting component being configured as follows: When the control button is in the first position and the pressure sensor detects that the accommodating space is in a negative pressure state, the reminder is configured to indicate that the drawer is in the locked state. When the control button is in the second position, the reminder is configured to indicate that the drawer is in the depressurization state; When the control button is between the first position and the second position, and the pressure sensor detects that the accommodating space is in a negative pressure state, the reminder is configured to indicate that the drawer is not in the depressurization state; When the control button is between the first position and the second position, and the pressure sensor detects that the accommodating space is not in a negative pressure state, the reminder is configured to indicate that the drawer is in the depressurization state.

27. The refrigerator according to claim 24, characterized in that, The functional element includes a ventilation component, which is disposed within the accommodating space, and the ventilation component is configured as follows: When the control button is in the first position, the ventilation component is not in working condition; When the control button is not in the first position, the ventilation component is in working condition, and the ventilation component is configured to at least drive air to flow on the outside of the drawer and in the accommodating space.

28. The refrigerator according to claim 24, characterized in that, The functional components include a ventilation element and a position sensor. The position sensor is configured to acquire the position of the accommodating space and the housing. The position sensor is connected to the control terminal of the ventilation element. The ventilation element is configured as follows: When the control button is not in the first position and the position sensor detects that the accommodating space is facing the box, the ventilation component is not in working condition. When the control button is not in the first position and the position sensor detects that at least a portion of the accommodating space is not facing the cabinet, the ventilation component is in working condition, and the ventilation component is connected to the outside of the drawer through the accommodating space.

29. The refrigerator according to any one of claims 23-28, characterized in that, The pressure relief device also includes a transmission component, the input end of which is connected to the control button, and the output end of which is connected to the sealing component.

30. The refrigerator according to claim 29, characterized in that, The transmission component includes a first connecting rod and a second connecting rod, with the first end of the first connecting rod rotatably disposed in the drawer; The middle part of the second link is connected to the second end of the first link, the first end of the second link is connected to the control button, and the second end of the second link is connected to the seal. The distance between the first end of the second link and the first end of the first link is greater than the distance between the second end of the second link and the first end of the first link.

31. The refrigerator according to any one of claims 24-28, characterized in that, The pressure relief device includes an elastic element, a first end of which is connected to the base, and a second end of which is connected to the control button. The elastic element is configured to at least drive the control button to move toward the first position.

32. A refrigerator, characterized in that, Includes the enclosure, drawers, pressure relief devices, and functional components; The drawer is movably disposed within the mounting cavity of the cabinet; when the drawer is in the locked state, the drawer is located within the mounting cavity, and the drawer forms a receiving space under negative pressure, the receiving space having a connecting opening that connects to the outside of the drawer; When the drawer is in a depressurized state, the drawer is movable relative to the cabinet body; The pressure relief device includes a connected sealing element and a control button. The sealing element is movably disposed in the communication port, and the control button is configured to at least drive the sealing element to close or open the communication port. When the drawer's storage space is depressurized, the control button causes the seal to disengage from the communication port, allowing air from outside the drawer to enter the storage space, and the drawer transitions from the locked state to the depressurized state. The control button controls the function element to turn it on or off via the control terminal of the function element.

Images