Refrigerator

Abstract

The utility model provides a refrigerator, belongs to the technical field of refrigeration equipment, and aims to solve the technical problem of low cold extraction efficiency of related refrigerators on drinks such as coffee. The refrigerator comprises a refrigerator body, a door body, an extraction device and a pressure device, the pressure device is arranged on the door body, the extraction device is placed on the rear wall of the door body, and the pressure device can be matched with a cup cover of the extraction device and suck air in the air cavity and the extraction cavity, so that brewing liquid in the outer cup enters the extraction cavity through the powder bin, and the volume of the brewing liquid making contact with coffee particles in the powder bin in unit time is increased; and the extraction efficiency of the brewing liquid on coffee is improved. And when the brewing liquid with a certain height exists in the extraction cavity, the pressure device can also inject air into the gas cavity and the extraction cavity through the air holes, so that the speed that the brewing liquid in the extraction cavity flows back to the liquid storage cavity is increased, and the coffee extraction efficiency of the brewing liquid is further improved.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of refrigeration equipment, in particular to a refrigerator. BACKGROUND

[0002] Cold brew coffee is a coffee beverage made by steeping coffee grounds in cold water for an extended period of time. Unlike traditional hot water brewing methods, cold brew coffee typically requires a longer time to complete the steeping process. Due to the use of cold water, cold brew coffee has lower acidity and a smoother taste.

[0003] In the related art, a filter cup of the static steeping type is placed in a refrigerator to prepare cold brew coffee and the like. However, the refrigerator in the related art has a slow cold extraction speed and low extraction efficiency for coffee and the like. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a refrigerator, which can solve the technical problem of low cold extraction efficiency for coffee and the like in related refrigerators.

[0005] The embodiment of the present application provides a refrigerator, which comprises:

[0006] A cabinet body configured with a storage chamber;

[0007] A cabinet door for opening or closing the storage chamber; the cabinet door comprises:

[0008] A door body comprising a door back wall, the door back wall facing the storage chamber when the door body is in a closed state;

[0009] An extraction device placed on the door back wall; the extraction device comprises:

[0010] An outer cup formed with a liquid storage cavity;

[0011] A cup cover arranged on the top of the outer cup, the cup cover comprising:

[0012] An air hole configured on the top of the cup cover,

[0013] A connecting portion configured on the top of the cup cover and surrounding the periphery of the air hole;

[0014] A gas cavity configured on the bottom of the cup cover and communicating with the air hole;

[0015] An inner cup arranged on the bottom of the cup cover, the inner cup having an extraction cavity therein, the extraction cavity communicating with the gas cavity;

[0016] A filter arranged on the bottom of the inner cup, the filter having a powder bin, the powder bin communicating with the liquid storage cavity and the extraction cavity, respectively;

[0017] A pressure device arranged on the door body, the pressure device being configured to be connected with the connecting portion and to suck air in the gas cavity through the air hole or inject air into the gas cavity through the air hole.

[0018] The refrigerator of the present application, when the extraction device is placed on the door shelf, the pressure device can cooperate with the cup cover of the extraction device, and suck the air in the gas cavity and the extraction cavity, so that the brewing liquid in the outer cup enters the extraction cavity through the powder bin, increasing the volume of the brewing liquid contacting the coffee particles in the powder bin per unit time, improving the mixing efficiency of the brewing liquid and the coffee particles, thereby improving the extraction efficiency of the brewing liquid on the coffee. When there is a certain height of brewing liquid in the extraction cavity, the pressure device can also inject air into the gas cavity and the extraction cavity through the air hole to speed up the rate of the brewing liquid in the extraction cavity flowing back to the liquid storage cavity. The backflow process of the brewing liquid also increases the volume of the brewing liquid contacting the coffee particles in the powder bin per unit time, further improving the extraction efficiency of the brewing liquid on the coffee.

[0019] In some embodiments of the present application, the cup cover further comprises:

[0020] The liquid outlet cavity is configured at the bottom of the cup cover and communicates with the liquid storage cavity.

[0021] The liquid outlet is configured at the top of the side wall of the cup cover and communicates with the liquid outlet cavity.

[0022] In this way, the liquid outlet communicates with the liquid outlet cavity, so that the brewing liquid in the liquid outlet cavity can be poured out through the liquid outlet cavity and the liquid outlet for the user to drink.

[0023] In some embodiments of the present application, the cup cover comprises:

[0024] The first cover body is connected to the outer cup, the top of the side wall of the first cover body is configured with a liquid outlet, and the first cover body is formed with a gas cavity and a liquid outlet cavity.

[0025] The second cover body is combined with the first cover body, the second cover body is configured with an air hole, and the top of the second cover body is configured with a connecting portion.

[0026] The inner cup is connected to the bottom of the first cover body.

[0027] In this way, the cup cover combined by the first cover body and the second cover body can facilitate cleaning of the gas cavity, the liquid outlet cavity or other internal parts of the cup cover, so as to maintain the cleanliness and hygiene of the cup cover. In addition, coffee particles or the like can also be added to the powder bin through the gas cavity of the second cover body.

[0028] In some embodiments of the present application, the cabinet door further comprises a door shelf, and the door shelf is arranged on the back wall of the door; the extraction device is selectively placed in the door shelf.

[0029] The door shelf comprises:

[0030] The bottom plate;

[0031] The side wall plate is arranged on the top of the bottom plate and surrounds the bottom plate to form a storage cavity with an open top.

[0032] The limiting member is located in the side wall and is arranged on the top of the bottom plate. The limiting member comprises:

[0033] The first limiting wall is arranged on one side of the outer cup along the thickness direction of the door body.

[0034] The second limiting wall is arranged on the other side of the outer cup along the thickness direction of the door body.

[0035] In this way, the first limiting wall and the second limiting wall can be used to stop the outer cup on both sides along the thickness direction of the door body, so as to limit the freedom of the outer cup along the thickness direction of the door body. Thus, in the process of rotating the door body, the sliding of the outer cup along the thickness direction of the door body can be reduced, so that the shaking amplitude of the outer cup can be reduced, and the spilling of the brewing liquid in the outer cup can be reduced.

[0036] In some embodiments of the present application, the limiting member further comprises a third limiting wall connected to one end of the first limiting wall and the second limiting wall along the width direction of the door body. The third limiting wall, the first limiting wall and the second limiting wall form a limiting space for accommodating the outer cup. The pressure device is located above the limiting space. When the outer cup is located in the limiting space, the connecting part can cooperate with the pressure device.

[0037] The end of the first limiting wall away from the third limiting wall and the end of the second limiting wall away from the third limiting wall form an avoiding opening for the outer cup to pass through.

[0038] Along the width direction, the avoiding opening and the side wall have a transfer space therebetween. The bottom of the transfer space is lower than the top of the limiting member. The transfer space is in communication with the avoiding opening and is used to place the outer cup.

[0039] In this way, the part of the pressure device for cooperating with the connecting part does not correspond to the transfer space. Therefore, the extraction device can be placed in the transfer space from top to bottom along the vertical direction, and then moved into the limiting space through the avoiding opening along the width direction of the door body, so as to be connected with the pressure device.

[0040] In some embodiments of the present application, the side wall comprises:

[0041] The side plate is arranged around the periphery of the bottom plate.

[0042] The partition plate is connected to both sides of the side plate along the thickness direction of the door body. Along the width direction, the partition plate and the avoiding opening form a transfer space therebetween.

[0043] In this way, the transfer space can be used to place the extraction device, and the partition plate and the side plate can also enclose a storage space. The storage space can be used to place other items, so that the door shelf can be used to place the extraction device and other items.

[0044] In some embodiments of the present application, the side plate on the side away from the back wall of the door is configured with a passing opening. The top end of the passing opening penetrates the side plate, and the passing opening is used for the outer cup to pass through to enter and exit the transfer space.

[0045] In this way, the outer cup or the extraction device can be placed in the transfer space along the thickness direction of the door body through the passing opening, without the need to move the extraction device upward to a height higher than the top end of the side plate, so that the extraction device is placed in the transfer space more labor-saving.

[0046] In some embodiments of the present application, the extraction device further comprises a liquid level sensor. The liquid level sensor is arranged in the gas cavity, and the liquid level sensor is connected to the cup cover. The liquid level sensor is used to detect the liquid level height in the gas cavity.

[0047] The liquid level sensor is electrically connected to the pressure device. When the liquid level sensor detects the liquid level height, the pressure device stops sucking air in the gas cavity.

[0048] In this way, after the brewing liquid flows into the gas cavity, the liquid level sensor can detect the liquid level height in the gas cavity. When the liquid level sensor detects the liquid level height, the pressure device stops sucking air in the gas cavity, so as to reduce the possibility of the brewing liquid being sucked into the pressure device.

[0049] In some embodiments of the present application, the inside of the door body has a heat insulation cavity.

[0050] The pressure device comprises:

[0051] A support is arranged in the heat insulation cavity.

[0052] A mounting seat is connected to the support. At least part of the mounting seat is located on the side away from the heat insulation cavity of the back wall.

[0053] A joint part is located on the side away from the heat insulation cavity of the back wall. The joint part is connected to the mounting seat, and the joint part has a communication cavity.

[0054] A gas pump has an air inlet and an air outlet. The air inlet is in communication with the communication cavity, and the air outlet is in an open state.

[0055] In this way, when the air pump is working, the air pump can indirectly suck the air in the air cavity through the air hole. Since the air cavity is in communication with the extraction cavity, the extraction cavity is in communication with the powder bin, and the powder bin is in communication with the liquid storage cavity, when the pressure device sucks the air in the air cavity, the air in the extraction cavity is also gradually sucked, a relatively low-pressure area is formed in the extraction cavity, and the volume of the brewing liquid in the liquid storage cavity that contacts the coffee particles in the powder bin per unit time is increased, the mixing efficiency of the brewing liquid and the coffee particles is improved, and thus the extraction efficiency of the brewing liquid on the coffee is improved.

[0056] In some embodiments of the present application, the pressure device further comprises a pressure relief valve, the pressure relief valve has a first interface, a second interface and a third interface in communication; the first interface is in communication with the communication cavity; the second interface is in an open state; and the third interface is in communication with the air inlet;

[0057] When the pressure relief valve is in an open state, the second interface is in communication with the first interface, and the first interface and the third interface are separated;

[0058] When the pressure relief valve is in a closed state, the second interface is separated from the first interface, and the first interface is in communication with the third interface.

[0059] In this way, when the extraction cavity has a certain height of the brewing liquid, the air pump is closed, the pressure relief valve is opened, air is injected into the air cavity and the extraction cavity through the air hole to accelerate the rate of the brewing liquid in the extraction cavity flowing back to the liquid storage cavity, and the brewing liquid flowing back also increases the volume of the brewing liquid contacting the coffee particles in the powder bin per unit time, thereby further improving the extraction efficiency of the brewing liquid on the coffee. The pressure relief process and the negative pressure process share the part of the pipeline from the communication cavity to the first interface, thereby simplifying the structure of the pressure device and the length of the pipeline used. BRIEF DESCRIPTION OF DRAWINGS

[0060] 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 embodiments or the 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.

[0061] Figure 1 The structure schematic diagram of the refrigerator in the open state of the door in the embodiments of the present application;

[0062] Figure 2 The structure schematic diagram of the refrigerator, the extraction device and the pressure device in the embodiments of the present application;

[0063] Figure 3 The partial exploded structure schematic diagram of Figure 2 ;

[0064] Figure 4 Exploded structural view of the extraction device in the refrigerator according to an embodiment of the present application Figure 1 ;

[0065] Figure 5 Structural view of the cup cover, inner cup and filter element in the refrigerator according to an embodiment of the present application

[0066] Figure 6 Exploded structural view of the extraction device in the refrigerator according to an embodiment of the present application Figure 2 ;

[0067] Figure 7 Left view of the refrigerator according to an embodiment of the present application Figure 2 ;

[0068] Figure 8 Sectional view of the refrigerator according to an embodiment of the present application in A-A direction Figure 7 ;

[0069] Figure 9 Enlarged view of the refrigerator according to an embodiment of the present application at P Figure 8 ;

[0070] Figure 10 Structural view of the pressure device in the refrigerator according to an embodiment of the present application

[0071] Figure 11 Partial exploded structural view of the door shelf and extraction device in the refrigerator according to an embodiment of the present application

[0072] BRIEF DESCRIPTION OF THE DRAWINGS

[0073] 10 - cabinet

[0074] 101 - storage compartment

[0075] 20 - cabinet door

[0076] 210 - door body

[0077] 211 - door back wall; 212 - heat insulation cavity

[0078] 213 - door panel; 214 - inner liner of door

[0079] 215 - door frame; 216 - upper end cover

[0080] 217 - lower end cover; 218 - side frame

[0081] 220 - door shelf

[0082] 221 - bottom plate; 222 - side wall

[0083] 2221 - side plate; 2222 - partition plate

[0084] 2223 - transfer space; 2224 - through port;

[0085] 2225 - storage space; 223 - limiting member;

[0086] 224 - first limiting wall; 225 - second limiting wall;

[0087] 226 - third limiting wall; 227 - limiting space;

[0088] 228 - avoiding port;

[0089] 30 - extraction device;

[0090] 310 - outer cup;

[0091] 311 - liquid storage cavity; 312 - cup nozzle;

[0092] 313 - cup handle;

[0093] 320 - cup cover;

[0094] 321 - first cover body; 323 - liquid outlet cavity;

[0095] 324 - liquid outlet; 325 - gas cavity;

[0096] 326 - overlapping edge; 322 - second cover body;

[0097] 327 - air hole; 328 - connecting part;

[0098] 330 - inner cup;

[0099] 331 - extraction cavity;

[0100] 340 - filter member;

[0101] 341 - powder bin;

[0102] 350 - liquid level sensor;

[0103] 40 - pressure device;

[0104] 410 - support;

[0105] 420 - mounting seat;

[0106] 430 - joint part;

[0107] 431 - communication cavity;

[0108] 440 - air pump;

[0109] 441 - air inlet; 442 - air outlet;

[0110] 450 - pipeline;

[0111] 460 - pressure relief valve

[0112] 461 - first interface 462 - second interface

[0113] 463 - third interface DETAILED DESCRIPTION

[0114] For the purpose of clarity, the present application will be described with reference to exemplary embodiments described in the following detailed description. It should be appreciated that the exemplary embodiments described herein are only a portion of all possible embodiments of the present application.

[0115] It should be noted that the brief description of 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.

[0116] In addition, the terms "include" and "have" and any variations thereof are intended to cover but not exclusively include, for example, a product or device that includes a list of components without being limited to clearly listed ones, but can include other components not clearly listed or inherent to such products or devices.

[0117] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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 device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0118] The terms "first", "second", "third", and the like are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", "third" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0119] In the description of the present application, it should be explained that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be understood in a broad sense, 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.

[0120] For the refrigerator in the related art, there is a technical problem of slow cold extraction speed of drinks such as coffee, and the embodiments of the present application provide a refrigerator, a pressure device is arranged on the door body, when the extraction device is placed on the door shelf, the pressure device can cooperate with the cup cover of the extraction device, and the air in the gas cavity and the extraction cavity is sucked, so that the brewing liquid in the outer cup enters the extraction cavity through the powder bin, the volume of the brewing liquid contacting the coffee particles in the powder bin per unit time is increased, the mixing efficiency of the brewing liquid and the coffee particles is improved, and thus the extraction efficiency of the brewing liquid on the coffee is improved. When the extraction cavity has a certain height of brewing liquid, the pressure device can also inject air into the gas cavity and the extraction cavity through the air hole, so as to accelerate the rate of the brewing liquid in the extraction cavity flowing back to the liquid storage cavity. The backflow process of the brewing liquid also increases the volume of the brewing liquid contacting the coffee particles in the powder bin per unit time, and further improves the extraction efficiency of the brewing liquid on the coffee.

[0121] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0122] Reference Figure 1 The refrigerator in the embodiments of the present application can include a cabinet 10 having a storage compartment 101, a cabinet door 20 connected to the cabinet 10 to open and close the storage compartment 101, and a refrigerating device providing cold air to the storage compartment 101.

[0123] In some embodiments, the cabinet 10 can be configured with at least one storage compartment 101 for containing food or other items. The storage compartment 101 can be configured as a refrigerating compartment or a freezing compartment. It can be understood that in some possible implementations, the storage compartment 101 can also be configured as a temperature-variable compartment with variable internal temperature, and the embodiments of the present application will not be described again.

[0124] The front side of the storage compartment 101 can be formed with a taking and placing opening, through which a user can take items from the storage compartment 101 or place items into the storage compartment 101.

[0125] The cabinet 10 can comprise a cabinet front wall, which can be located at the front side of the cabinet 10.

[0126] In some embodiments, the cabinet 10 can comprise a cabinet inner container, which can form the storage compartment 101.

[0127] The cabinet 10 can further comprise a cabinet outer shell, which is connected to the outer side of the cabinet inner container to form the appearance of the cabinet 10.

[0128] The cabinet front wall can be the front wall of the cabinet outer shell. Alternatively, the cabinet front wall can comprise the front wall of the cabinet outer shell and the front wall of the cabinet inner container, and the front wall of the cabinet outer shell can be in abutment with the front wall of the cabinet inner container.

[0129] In some embodiments, a refrigeration device can be arranged in the cabinet 10. The refrigeration device can be a refrigeration device in the related art. The refrigeration device is used to provide cold air to the storage compartment 101 to reduce the temperature in the storage compartment 101.

[0130] In some embodiments, the cabinet door 20 can be rotatably connected to the cabinet 10 by a hinge or the like to open or close the access opening of the storage compartment 101.

[0131] When the cabinet door 20 is in the open state, the cabinet door 20 opens the access opening, and a user can take or place articles from or into the storage compartment 101 via the access opening.

[0132] When the cabinet door 20 is in the closed state, the cabinet door 20 closes the access opening to reduce the leakage of cold air in the storage compartment 101 from the access opening, thereby improving the refrigeration effect of the refrigerator on the articles in the storage compartment 101.

[0133] Each storage compartment 101 can correspondingly be provided with at least one cabinet door 20.

[0134] Exemplarily, referring to Figure 1 The storage compartment 101 located at the upper part of the cabinet 10 can correspondingly be provided with two cabinet doors 20 in the form of a pair of doors.

[0135] It can be understood that each storage compartment 101 can also correspondingly be provided with one cabinet door 20, and the embodiments of the present application will not be described hereinafter.

[0136] The cabinet door 20 can comprise a door rear wall 211. It should be noted that the door rear wall 211 is not absolutely planar, and the door rear wall 211 can further be provided with a door seal to improve the sealing performance and can further be provided with a storage space such as a storage box or an ice making device. It can be understood that when the cabinet door 20 is in the closed state, the door rear wall 211 is at least partially in abutment with the cabinet front wall around the periphery to form a relatively closed space for the storage compartment 101.

[0137] When the cabinet door 20 is in the closed state, the door rear wall 211 can be located at the rear side of the cabinet door 20, and a part of the door rear wall 211 corresponds to the access opening, and another part of the door rear wall 211 corresponds to the cabinet front wall.

[0138] The cabinet door 20 can further include a door front wall. The door front wall is arranged opposite to the door rear wall 211 along the thickness direction of the cabinet door 20.

[0139] When the cabinet door 20 is in the closed state, the door front wall can be located at the front side of the cabinet door 20, and the distance between the door front wall and the cabinet front wall is greater than the distance between the door rear wall 211 and the cabinet front wall.

[0140] The cabinet door 20 can further include two door side walls, which can be arranged opposite along the width direction X of the cabinet door 20. The two door side walls can be connected with the door front wall and the door rear wall 211 respectively.

[0141] In some embodiments of the present application, referring to Figure 2 , the cabinet door 20 can include a door body 210. Referring to Figure 3 , the door body 210 can include a door panel 213, a door liner 214 and a door frame 215, and the door panel 213 and the door liner 214 can be connected to the door frame 215 at opposite sides along the thickness direction Y of the door frame 215 respectively. When the cabinet door 20 is in the closed state, the thickness direction Y of the door frame 215 is substantially consistent with the depth direction Y of the cabinet 10. The door panel 213, the door liner 214 and the door frame 215 form the appearance of the door body 210.

[0142] The front side of the door panel 213 has a door front wall.

[0143] The door rear wall 211 can include the rear wall of the door frame 215 and the rear wall of the door liner 214.

[0144] The door frame 215 can be rotatably connected with the cabinet 10, and the door frame 215 has high structural strength. The rotatable connection between the door frame 215 and the cabinet 10 can improve the reliability of the connection between the door frame 215 and the cabinet 10.

[0145] The door frame 215 has two door side walls at the two ends along the width direction X of the door frame 215 respectively.

[0146] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 , the door frame 215 can include an upper end cover 216, and the upper end cover 216 is arranged at the top end of the door liner 214 along the height direction Z of the refrigerator.

[0147] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 , the door frame 215 can include a lower end cover 217, and the lower end cover 217 is arranged at the bottom end of the door liner 214 along the height direction Z of the refrigerator.

[0148] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 The door frame 215 can further include two side frames 218 arranged opposite to each other along the width direction X of the door body 210. The door frame 215 can be enclosed by the two side frames 218, the upper end cover 216 and the lower end cover 217.

[0149] Referring to Figure 3 Along the thickness direction Y of the door body 210, the door liner 214 and the door panel 213 can be arranged spaced apart from each other, and a heat insulation cavity 212 can be formed by the door panel 213, the frame and the door liner 214. The heat insulation cavity 212 can be filled with a heat insulation material, such as a foaming agent, etc. The heat insulation material can reduce heat exchange between the storage compartment 101 inside the refrigerator and the outside, so as to achieve a heat preservation effect.

[0150] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 The door body 210 can further include a door shelf 220. The door shelf 220 can be located at one side of the back wall 211 of the door body 210. The door shelf 220 can be used to place articles, so as to improve the space utilization of the storage compartment 101 and facilitate the user to take the articles. The door shelf 220 can be connected to the door frame 215. The door frame 215 has high structural strength, so as to improve the connection strength of the door shelf 220 and the door frame 215 and improve the stability of the door shelf 220.

[0151] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 The refrigerator can further include an extraction device 30. The extraction device 30 can be arranged on the back wall 211. The extraction device 30 can be arranged directly or indirectly on the back wall 211.

[0152] In some implementation manners, the extraction device 30 can be detachably arranged on the back wall 211.

[0153] In another implementation manner, the extraction device 30 can be selectively placed in the door shelf 220, so that the extraction device 30 is indirectly arranged on the back wall 211 through the door shelf 220. That is, the extraction device 30 can be placed in the door shelf 220 or taken out of the door shelf 220. The extraction device 30 is used to extract beverages such as coffee.

[0154] The structure of the extraction device 30 will be described below with reference to Figures 4-9

[0155] In some embodiments, the extraction device 30 can include an outer cup 310. A liquid storage cavity 311 can be formed in the outer cup 310. The liquid storage cavity 311 can be used to hold brewing liquid. The brewing liquid is used to brew beverages such as coffee. Exemplarily, the brewing liquid can be pure water, mineral water, etc.

[0156] ​The top of the outer cup 310 can have a cup mouth, through which the brewing liquid can be added into the liquid storage cavity 311.

[0157] The top edge of the outer cup 310 can have a cup spout 312, through which the liquid in the liquid storage cavity 311 can be poured out, and the cup spout 312 can guide the liquid to reduce or prevent the liquid from dripping along the outer wall of the outer cup 310 after being poured out, so as to keep the outer cup 310 clean.

[0158] The outer cup 310 can further have a cup handle 313, which can facilitate holding the outer cup 310.

[0159] In some embodiments, the extraction device 30 can further include a cup cover 320. The cup cover 320 is arranged on the top of the outer cup 310, and the cup cover 320 is used to cover the cup mouth to reduce dust from entering the liquid storage cavity 311.

[0160] The cup cover 320 is detachably connected to the outer cup 310. For example, the edge of the cup cover 320 can be configured with a lap joint edge 326, which can lap the top edge of the outer cup 310, so that the cup cover 320 is easily separated from the outer cup 310, thereby facilitating the addition of the brewing liquid into the liquid storage cavity 311.

[0161] In some embodiments, the extraction device 30 can further include an inner cup 330, which can be connected to the bottom of the cup cover 320. For example, the inner cup 330 and the cup cover 320 can be threadedly connected, so as to facilitate the separation of the inner cup 330 and the cup cover 320, thereby facilitating cleaning or replacing the inner cup 330 or the cup cover 320. When the cup cover 320 is covered on the outer cup 310, the inner cup 330 is located in the liquid storage cavity 311. The inner cup 330 can have an extraction cavity 331 formed therein, which is in communication with the gas cavity 325.

[0162] In some embodiments, the extraction device 30 can further include a filter 340, which can be a filter screen, a filter cup, or the like. The filter 340 can have a powder bin 341 formed therein, in which ground coffee particles can be placed. The size of the coffee particles can be determined according to personal taste.

[0163] The filter 340 can be connected to the bottom of the inner cup 330. The filter 340 can be threadedly connected with the inner cup 330, so as to facilitate the separation of the filter 340 and the inner cup 330, thereby facilitating the addition or replacement of coffee particles into the bin, facilitating the cleaning of the filter 340, or facilitating the replacement of the filter 340 or the inner cup 330. When the cup cover 320 is covered on the outer cup 310, the filter 340 and the inner cup 330 are both located in the liquid storage cavity 311.

[0164] The powder bin 341 is in communication with the liquid storage chamber 311, so that the brewing liquid in the liquid storage chamber 311 can soak the coffee particles in the filter 340, so that the soluble substances in the coffee particles are dissolved in the brewing liquid, achieving extraction of the coffee.

[0165] The powder bin 341 is in communication with the extraction chamber 331, so that the brewing liquid in the liquid storage chamber 311 can flow into the extraction chamber 331 through the powder bin 341.

[0166] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 , Figure 3 , Figure 9 and Figure 10 , the refrigerator can further include a pressure device 40. The pressure device 40 can be arranged on the door body 210.

[0167] Referring to Figure 9 , the top of the cup cover 320 can have an air hole 327. The bottom of the cup cover 320 can be configured to form a gas chamber 325, which is in communication with the air hole 327, so as to suck the air in the gas chamber 325 through the air hole 327, or inject air into the gas chamber 325 through the air hole 327.

[0168] The top of the cup cover 320 can be configured to form a connecting portion 328. The connecting portion 328 can include at least one ring, and in the implementation manner in which the connecting portion 328 includes multiple rings, the multiple rings can be arranged in a nested manner. The connecting portion 328 surrounds the periphery of the air hole 327. The pressure device 40 is used to be connected with the connecting portion 328, and the connecting portion 328 can also reduce the leakage of gas between the air hole 327 and the pressure device 40.

[0169] The pressure device 40 can be used to suck the air in the gas chamber 325 through the air hole 327. Since the gas chamber 325 is in communication with the extraction chamber 331, the extraction chamber 331 is in communication with the powder bin 341, and the powder bin 341 is in communication with the liquid storage chamber 311, when the pressure device 40 sucks the air in the gas chamber 325, the air in the extraction chamber 331 is also gradually sucked, a relatively low-pressure area is formed in the extraction chamber 331, and the brewing liquid in the liquid storage chamber 311 flows upward into the extraction chamber 331 through the powder bin 341, which increases the volume of the brewing liquid that contacts the coffee particles in the powder bin 341 per unit time, improves the mixing efficiency of the brewing liquid and the coffee particles, and thus improves the extraction efficiency of the brewing liquid on the coffee.

[0170] The pressure device 40 can also be used to inject air into the gas cavity 325 through the air hole 327. When the extraction cavity 331 has a certain height of the brewing liquid, the pressure device 40 injects air into the gas cavity 325 and the extraction cavity 331 through the air hole 327 to accelerate the rate of the brewing liquid in the extraction cavity 331 backflowing to the liquid storage cavity 311. The backflowing process of the brewing liquid also increases the volume of the brewing liquid contacting the coffee particles in the powder bin 341 per unit time, further improving the extraction efficiency of the brewing liquid on the coffee.

[0171] In some possible implementation manners of the embodiments of the present application, referring to Figure 4 、 Figure 5 、 Figure 6 and Figure 9 , the bottom of the cup cover 320 can also be configured to form an outlet cavity 323, which is separated from the gas cavity 325, i.e., the outlet cavity 323 is not communicated with the gas cavity 325. When the inner cup 330 is connected to the cup cover 320, and the cup cover 320 is covered on the cup mouth of the outer cup 310, the outlet cavity 323 is communicated with the inner cup 330 outside the outlet cavity 323.

[0172] In the implementation manner in which the outer cup 310 is configured with the cup nozzle 312, the side wall of the cup cover 320 can be arranged to be attached to the side wall of the outer cup 310. The top of the side wall of the cup cover 320 can be configured to form an outlet opening 324, which corresponds to the position of the cup nozzle 312. The outlet opening 324 is communicated with the outlet cavity 323, so that the brewing liquid in the outlet cavity 323 can be poured out through the outlet cavity 323 and the outlet opening 324 for the user to drink.

[0173] In some possible implementation manners of the embodiments of the present application, referring to Figure 4 、 Figure 5 、 Figure 6 and Figure 9 , the cup cover 320 can include a first cover body 321, which can be connected to the outer cup 310. At least part of the side wall of the first cover body 321 is opposite to the side wall of the outer cup 310. The top of the side wall of the first cover body 321 can be configured to form an outlet opening 324. The first cover body 321 can be formed with a gas cavity 325 and an outlet cavity 323.

[0174] The inner cup 330 can be connected to the bottom of the first cover body 321.

[0175] The cup cover 320 can also include a second cover body 322, which can be covered on the top of the first cover body 321. The second cover body 322 can be configured with an air hole 327. The top of the second cover body 322 can be configured with a connecting portion 328.

[0176] The cup cover 320 formed by the combination of the first cover 321 and the second cover 322 can facilitate the cleaning of the gas cavity 325, the liquid outlet cavity 323 or other internal parts of the cup cover 320, so as to maintain the cleanliness and hygiene of the cup cover 320. In addition, coffee particles or the like can be added into the powder bin 341 through the gas cavity 325 of the second cover 322.

[0177] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 and Figure 11 The door shelf 220 can include a bottom plate 221 located at the bottom of the door shelf 220. After the door shelf 220 is arranged at the door body 210, the bottom plate 221 is substantially horizontal. The bottom plate 221 can be used to place the extraction device 30, so as to facilitate the connection of the pressure device 40 and the cup cover 320.

[0178] In some embodiments, referring to Figure 2 and Figure 11 The door shelf 220 can further include a side wall 222, which can be arranged at the top of the bottom plate 221 and can be arranged around the edge of the bottom plate 221. The side wall 222 and the bottom plate 221 can form a storage space, and the storage space can be used to place the extraction device 30 and other articles.

[0179] In some embodiments, referring to Figure 2 and Figure 11 The door shelf 220 can further include a limiting piece 223, which can be arranged at the top of the bottom plate 221.

[0180] The limiting piece 223 can include a first limiting wall 224 and a second limiting wall 225, which can be oppositely arranged along the thickness direction Y of the door body 210. The first limiting wall 224 and the second limiting wall 225 can be inclined at a certain angle with respect to the horizontal plane. For example, when the first limiting wall 224 and the second limiting wall 225 are inclined at 90° with respect to the horizontal plane, the first limiting wall 224 and the second limiting wall 225 extend along the vertical direction. The gap between the first limiting wall 224 and the second limiting wall 225 can be used to place the outer cup 310.

[0181] The first limiting wall 224 and the second limiting wall 225 can be used to stop the outer cup 310 on both sides of the thickness direction Y of the door body 210, so as to limit the freedom degree of the outer cup 310 along the thickness direction Y of the door body 210. In this way, the sliding of the outer cup 310 along the thickness direction Y of the door body 210 can be reduced during the rotation of the door body 210, so as to reduce the shaking amplitude of the outer cup 310 and reduce the spilling of the brewed liquid in the outer cup 310.

[0182] In some embodiments, referring to Figure 2 and Figure 11The limiting member 223 can further include a third limiting wall 226 connected to one end of the first limiting wall 224 and the second limiting wall 225 along the width direction X of the door body 210. The third limiting wall 226, the first limiting wall 224 and the second limiting wall 225 enclose a limiting space 227 for accommodating the outer cup 310 or the extraction device 30. The part of the pressure device 40 for cooperating with the connecting portion 328 can be located above the limiting space 227, so that when the extraction device 30 is located in the limiting space 227, the connecting portion 328 can be connected and cooperated with the pressure device 40.

[0183] Since the part of the pressure device 40 for cooperating with the connecting portion 328 is arranged above the limiting space 227 of the door body 210, the extraction device 30 is difficult to be placed in the limiting space 227 from top to bottom along the vertical direction.

[0184] The end of the first limiting wall 224 away from the third limiting wall 226 and the end of the second limiting wall 225 away from the third limiting wall 226 form an avoiding opening 228 for the outer cup 310 to pass through. Along the width direction X of the door body 210, the avoiding opening 228 and the side wall 222 have a transfer space 2223 therebetween, which is used for placing the outer cup 310.

[0185] The part of the pressure device 40 for cooperating with the connecting portion 328 does not correspond to the transfer space 2223. Above the transfer space 2223 of the door body 210, there is no pressure device 40, so that the extraction device 30 can be placed in the transfer space 2223 from top to bottom along the vertical direction. Then, the extraction device 30 is moved into the limiting space 227 through the avoiding opening 228 along the width direction X of the door body 210, so as to be connected and cooperated with the pressure device 40.

[0186] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 and Figure 11 The side wall 222 can include a side plate 2221 surrounding the periphery of the bottom plate 221.

[0187] The side wall 222 can further include a partition plate 2222, two ends of the partition plate 2222 being connected to two sides of the side plate 2221 along the thickness direction Y of the door body 210. Along the width direction X of the door body 210, the partition plate 2222 and the avoiding opening 228 form the transfer space 2223. In addition, the partition plate 2222 and the side plate 2221 can further enclose a storage space 2225, which can be used for placing other articles, so that the door shelf 220 can be used for placing the extraction device 30 and other articles.

[0188] In some possible implementation manners of the embodiments of the present application, referring to Figure 2 andFigure 11 The side wall 222 located at the side of the transfer space 2223 away from the back wall 211 of the door can be configured with a through hole 2224, the top end of the through hole 2224 penetrating the side wall 222, the through hole 2224 being used for the outer cup 310 to pass through, so that the outer cup 310 or the extraction device 30 can be placed in the transfer space 2223 along the thickness direction Y of the door body 210 through the through hole 2224, without the need to move the extraction device 30 upward to a height higher than the top end of the side wall 222, and the extraction device 30 is placed in the transfer space 2223 more labor-saving.

[0189] In some possible implementation manners of the embodiments of the present application, referring to Figure 4 and Figure 9 The extraction device 30 can further include a liquid level sensor 350, which can be a photoelectric liquid level sensor 350, a float liquid level sensor 350 or other sensors that can detect the liquid level. The liquid level sensor 350 is arranged in the gas cavity 325, and the liquid level sensor 350 is connected to the cup cover 320, and the liquid level sensor 350 is used to detect the liquid level in the gas cavity 325.

[0190] When the pressure device 40 sucks the air in the gas cavity 325 and the extraction cavity 331 through the air hole 327, the brewing liquid in the liquid outlet cavity 323 continuously flows to the extraction cavity 331, and the liquid level in the extraction cavity 331 gradually rises. After the liquid level in the extraction cavity 331 reaches the top end of the extraction cavity 331, the pressure device 40 continues to suck the air in the gas cavity 325, which will cause the brewing liquid to flow upward into the gas cavity 325. When the brewing liquid flows into the gas cavity 325, the liquid level sensor 350 can detect the liquid level in the gas cavity 325. That is, when the liquid level sensor 350 detects that the gas cavity 325 has a liquid level, it means that the brewing liquid has flowed into the gas cavity 325.

[0191] The liquid level sensor 350 is electrically connected to the pressure device 40, and the pressure device 40 stops sucking the air in the gas cavity 325 when the liquid level sensor 350 detects the liquid level, so as to reduce the possibility of the brewing liquid being sucked into the pressure device 40.

[0192] In some possible implementation manners of the embodiments of the present application, referring to Figure 3 and Figure 10 The pressure device 40 can include a bracket 410 arranged in the heat insulation cavity 212, and the bracket 410 can be connected to the side frame 218.

[0193] Referring to Figure 2 , Figure 9 and Figure 10The pressure device 40 can further comprise a mounting base 420 connected to the bracket 410, and at least a portion of the mounting base 420 is located on the side of the rear wall 211 away from the heat insulation cavity 212.

[0194] The pressure device 40 can further comprise a connector 430 located on the side of the rear wall 211 away from the heat insulation cavity 212, and the connector 430 is connected to the mounting base 420. The connector 430 can have a communication cavity 431.

[0195] When the extraction device 30 is connected to the pressure device 40, the connecting portion 328 can be connected to the connector 430, so that the gas cavity 325 can be in communication with the communication cavity 431 through the gas hole 327.

[0196] In some embodiments, the connector 430 can be rotatably connected to the mounting base 420, and the rotation axis of the connector 430 relative to the mounting base 420 can extend along the width direction X of the door body 210. In this way, the connector 430 can be rotated upward or downward relative to the door body 210. When the connector 430 is not in use, the extension length of the connector 430 along the thickness direction Y of the door body 210 can be reduced, so that when the door body 210 is in a closed state, the length of the connector 430 extending into the storage compartment 101 can be reduced, thereby reducing the collision between the connector 430 and the items in the storage compartment 101.

[0197] Reference Figure 10 The pressure device 40 can further comprise an air pump 440 connected to the upper end cover 216. The air pump 440 can have an air inlet 441 and an air outlet 442. When the air pump 440 is working, air can enter the air pump 440 through the air inlet 441 and flow out of the air pump 440 through the air outlet 442. The air inlet 441 can be in communication with the communication cavity 431 through a pipeline 450, and the air outlet 442 can be in an open state. The air outlet 442 can be in communication with the environment outside the door body 210.

[0198] When the air pump 440 is working, the air pump 440 can indirectly suck the air in the gas cavity 325 through the gas hole 327. Since the gas cavity 325 is in communication with the extraction cavity 331, the extraction cavity 331 is in communication with the powder bin 341, and the powder bin 341 is in communication with the liquid storage cavity 311, when the pressure device 40 sucks the air in the gas cavity 325, the air in the extraction cavity 331 is also gradually sucked, and a relatively low pressure area is formed in the extraction cavity 331. The brewing liquid in the liquid storage cavity 311 flows upward to the extraction cavity 331 through the powder bin 341, which increases the volume of the brewing liquid contacting the coffee particles in the powder bin 341 per unit time, improves the mixing efficiency of the brewing liquid and the coffee particles, and thus improves the extraction efficiency of the brewing liquid on the coffee.

[0199] The liquid level sensor 350 can be electrically connected with the air pump 440, and the air pump 440 stops sucking air in the gas cavity 325 when the liquid level sensor 350 detects the liquid level height, so as to reduce the possibility of the brewing liquid being sucked into the communication cavity 431.

[0200] In some possible implementation manners of the embodiments of the present application, referring to Figure 10 The pressure device 40 can further include a pressure relief valve 460.

[0201] The pressure relief valve 460 can have a first interface 461, a second interface 462 and a third interface 463 in communication. The first interface 461 can be in communication with the communication cavity 431 through the pipeline 450. The second interface 462 is in an open state. The second interface 462 can be in communication with the environment outside the door body 210. The third interface 463 is in communication with the air inlet 441.

[0202] When the pressure relief valve 460 is in an open state, the second interface 462 is in communication with the first interface 461, and the first interface 461 and the third interface 463 are separated. At this time, external air can flow from the first interface 461 to the second interface 462, and from the second interface 462 to the pipeline 450, and the air in the pipeline 450 flows to the gas cavity 325 through the communication cavity 431. At this time, the air flow direction in the extraction device 30 and the pressure device 40 is: the second interface 462→the first interface 461→the pipeline 450→the communication cavity 431→the air hole 327→the gas cavity 325→the extraction cavity 331.

[0203] When the pressure relief valve 460 is in a closed state, the second interface 462 is separated from the first interface 461, and the first interface 461 is in communication with the third interface 463. At this time, when the air pump 440 is opened, the air pump 440 sucks air in the gas cavity 325 and the extraction cavity 331 through the third interface 463, the first interface 461, the pipeline 450 and the communication cavity 431. At this time, the air flow direction in the extraction device 30 and the pressure device 40 is: the extraction cavity 331→the gas cavity 325→the air hole 327→the communication cavity 431→the pipeline 450→the first interface 461→the third interface 463→the air inlet 441→the air outlet 442.

[0204] The pressure device 40 can include a negative pressure state and a pressure relief state.

[0205] When the pressure device 40 is in the negative pressure state, the pressure relief valve 460 is in the closed state, and the air pump 440 is in the open state. The air in the extraction chamber 331 flows out to the external environment through the gas chamber 325, the air hole 327, the communication chamber 431, the pipeline 450, the first interface 461, the third interface 463, the air inlet 441, and the air outlet 442 in sequence. In this process, the brewing liquid in the liquid outlet chamber 323 continuously flows to the extraction chamber 331, and the liquid level in the extraction chamber 331 gradually rises. When the liquid level in the extraction chamber 331 reaches the top end of the extraction chamber 331, the pressure device 40 continues to suck the air in the gas chamber 325, which causes the brewing liquid to flow upward into the gas chamber 325. When the liquid level sensor 350 detects that the gas chamber 325 has a liquid level, it means that the brewing liquid has flowed into the gas chamber 325.

[0206] When the pressure device 40 is in the pressure relief state, the pressure relief valve 460 is in the open state, and the air pump 440 is in the closed state. The air in the external environment of the door body 210 flows into the extraction chamber 331 through the second interface 462, the first interface 461, the pipeline 450, the communication chamber 431, the air hole 327, and the gas chamber 325 in sequence, so as to inject air into the extraction chamber 331, increase the air pressure in the extraction chamber 331, and accelerate the rate of the brewing liquid in the extraction chamber 331 flowing back to the liquid storage chamber 311. The brewing liquid backflow process also increases the volume of the brewing liquid contacting the coffee particles in the powder bin 341 per unit time, further improving the extraction efficiency of the brewing liquid on the coffee.

[0207] The pressure device 40 in the embodiment shares the pipeline 450 from the communication chamber 431 to the first interface 461 for the pressure relief process and the negative pressure process, which simplifies the structure of the pressure device 40 and the length of the pipeline 450.

[0208] In other possible implementations of the embodiments of the present application, the air pump 440 and the pressure relief valve 460 can also be connected to the joint part 430 through independent pipelines 450, respectively, so as to reduce the situation that the negative pressure process cannot be normally performed when the pressure relief valve 460 fails.

[0209] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for some or all of the technical features. These modifications or replacements do not change the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

[0210] For the sake of convenience, the foregoing description has been presented in terms of specific implementations. Again, however, the foregoing discussion is not intended to be exhaustive or to limit the implementations to the precise forms disclosed. Modifications and variations are possible in light of the above teachings. The implementations were chosen and described in order to provide the best illustration of the principles of the application and its practical application, and to thereby enable one of ordinary skill in the art to use the application in various implementations and with various modifications as are suited to the particular use contemplated.

Claims

1. A refrigerator characterized by comprising: The application relates to a cabinet door (20) for opening or closing a storage chamber (101) of a cabinet (10) comprising a door body (210) having a back wall (211) facing the storage chamber (101) when the door body (210) is in a closed state; and an extraction device (30) disposed on the back wall (211) of the door body (210), the extraction device (30) comprising an outer cup (310) having a liquid storage cavity (311); a cup cover (320) disposed on a top of the outer cup (310), the cup cover (320) comprising a gas hole (327) formed on a top of the cup cover (320), a connecting portion (328) formed on the top of the cup cover (320) and surrounding a periphery of the gas hole (327), a gas cavity (325) formed on a bottom of the cup cover (320) and communicating with the gas hole (327), and an inner cup (330) disposed on the bottom of the cup cover (320) and having an extraction cavity (331) therein, the extraction cavity (331) communicating with the gas cavity (325); and a filter (340) disposed on a bottom of the inner cup (330), the filter (340) having a powder chamber (341) communicating with the liquid storage cavity (311) and the extraction cavity (331) respectively; and a pressure device (40) disposed on the door body (210), the pressure device (40) being configured to be connected with the connecting portion (328) and to suck air in the gas cavity (325) through the gas hole (327) or to inject air into the gas cavity (325) through the gas hole (327). The cup cover (320) further comprises a liquid outlet cavity (323) formed on a bottom of the cup cover (320) and communicating with the liquid storage cavity (311), and a liquid outlet (324) formed on a top of a side wall of the cup cover (320) and communicating with the liquid outlet cavity (323). The cup cover (320) comprises a first cover body (321) connected with the outer cup (310), a top of a side wall of the first cover body (321) being configured with the liquid outlet (324), the first cover body (321) being formed with the gas cavity (325) and the liquid outlet cavity (323); and a second cover body (322) covering a top of the first cover body (321), the second cover body (322) being configured with the gas hole (327), a top of the second cover body (322) being configured with the connecting portion (328). The inner cup (330) is connected with a bottom of the first cover body (321). The cabinet door (20) further comprises a door shelf (220) disposed on the back wall (211) of the door body (210), the extraction device (30) being selectively disposed in the door shelf (220). The door shelf (220) comprises a bottom plate (221). ​ ​ ​ ​ ​ ​ ​ 2. The refrigerator according to claim 1, characterized in that, ​ ​ ​ 3. The refrigerator according to claim 2, characterized in that, ​ ​ ​ ​ 4. The refrigerator according to claim 1, characterized in that, ​ ​ ​ A side wall (222) is arranged on the top of the bottom plate (221) and forms a top opening storage cavity together with the bottom plate (221); A limiting member (223) is arranged on the top of the bottom plate (221) and located in the side wall (222), the limiting member (223) comprises: A first limiting wall (224) is arranged on one side of the outer cup (310) along the thickness direction of the door body (210); A second limiting wall (225) is arranged on the other side of the outer cup (310) along the thickness direction of the door body (210) opposite to the first limiting wall (224).

5. The refrigerator according to claim 4, characterized in that, The limiting member (223) further comprises a third limiting wall (226) connected to one end of the first limiting wall (224) and the second limiting wall (225) along the width direction of the door body (210), the third limiting wall (226), the first limiting wall (224) and the second limiting wall (225) form a limiting space (227) for accommodating the outer cup (310); the pressure device (40) is located above the limiting space (227); when the outer cup (310) is located in the limiting space (227), the connecting portion (328) can cooperate with the pressure device (40); The end of the first limiting wall (224) away from the third limiting wall (226) and the end of the second limiting wall (225) away from the third limiting wall (226) form an avoiding opening (228) for the outer cup (310) to pass through; Along the width direction, the avoiding opening (228) and the side wall (222) have a transfer space (2223), the bottom of the transfer space (2223) is lower than the top of the limiting member (223), the transfer space (2223) is in communication with the avoiding opening (228), and the transfer space (2223) is used for placing the outer cup (310).

6. The refrigerator according to claim 5, characterized in that, The side wall (222) comprises: An edge plate (2221) is arranged on the side of the bottom plate (221); A partition plate (2222) is connected to both sides of the edge plate (2221) along the thickness direction of the door body (210), and the transfer space (2223) is formed between the partition plate (2222) and the avoiding opening (228) along the width direction.

7. The refrigerator according to claim 5, characterized in that, The side wall (222) on the side away from the back wall (211) of the door body (210) is provided with a passing opening (2224), the top end of the passing opening (2224) penetrates the side wall (222), and the passing opening (2224) is used for the outer cup (310) to pass through to enter or exit the transfer space (2223).

8. The refrigerator according to any one of claims 1 to 6, characterized in that, The extraction device (30) further comprises a liquid level sensor (350) disposed in the gas cavity (325), the liquid level sensor (350) being connected to the cup cover (320), and the liquid level sensor (350) being used to detect the liquid level in the gas cavity (325); The liquid level sensor (350) is electrically connected to the pressure device (40), and the pressure device (40) stops sucking air in the gas cavity (325) when the liquid level sensor (350) detects the liquid level.

9. The refrigerator according to any one of claims 1 to 6, characterized in that, The door body (210) has a heat insulation cavity (212) inside; The pressure device (40) comprises: a bracket (410) disposed in the heat insulation cavity (212); a mounting seat (420) connected with the bracket (410), at least part of the mounting seat (420) being located on the side of the door rear wall (211) away from the heat insulation cavity (212); a joint part (430) located on the side of the door rear wall (211) away from the heat insulation cavity (212), the joint part (430) being connected with the mounting seat (420), and the joint part (430) having a communication cavity (431); a gas pump (440) having an air inlet (441) and an air outlet (442), the air inlet (441) being in communication with the communication cavity (431), and the air outlet (442) being in an open state.

10. The refrigerator according to claim 9, characterized in that, The pressure device (40) further comprises a pressure relief valve (460) having a first interface (461), a second interface (462) and a third interface (463) in communication; the first interface (461) is in communication with the communication cavity (431); the second interface (462) is in an open state; and the third interface (463) is in communication with the air inlet (441); When the pressure relief valve (460) is in an open state, the second interface (462) is in communication with the first interface (461), and the first interface (461) and the third interface (463) are separated; When the pressure relief valve (460) is in a closed state, the second interface (462) is separated from the first interface (461), and the first interface (461) is in communication with the third interface (463).

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