Refrigerator

Abstract

The application belongs to the technical field of electrical equipment, and provides a refrigerator, which comprises a cabinet body having a storage chamber; a vacuum drawer comprising a drawer body having a taking and placing opening and a closure for closing the taking and placing opening, the drawer body being pullably installed in the storage chamber, the closure having an air extraction hole; an air extraction device connected with the air extraction hole; a butt joint reversibly arranged on the drawer body; an extraction kettle detachably connected with the butt joint; in the case that the butt joint is connected with the extraction kettle, the butt joint can be automatically butt-jointed with the air extraction hole along with the drawer body being pushed into the storage chamber. The extraction kettle and the vacuum drawer share the air extraction device, so that the overall cost is reduced and the space utilization is improved; when the extraction kettle is not placed in the vacuum drawer, the butt joint can be reversibly stored in the drawer body, and when extraction is needed, the butt joint is reversibly extended to be connected with the extraction kettle.

Description

Technical Field

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

[0002] Refrigerators typically integrate a vacuum preservation function and are equipped with an independent vacuum system to remove air from the storage space inside the vacuum preservation drawer. This reduces the air pressure within the storage space, inhibits the oxidation and spoilage of food, and extends its shelf life. Meanwhile, with the increasing popularity of self-service beverage functions, some refrigerators are equipped with extraction devices that utilize negative pressure to lift liquids and extract bubbles, thereby automatically preparing beverages such as coffee and tea.

[0003] However, most existing vacuum preservation and vacuum extraction functions are independent of each other, requiring two complete and dedicated suction systems. This results in a complex structure, occupies a large amount of internal space in the refrigerator, and increases the overall cost. Summary of the Invention

[0004] The purpose of this application is to provide a refrigerator that solves the technical problem of high cost and complex structure in the prior art, where vacuum preservation and extraction are configured with separate air extraction systems.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a refrigerator, comprising: The container has a storage compartment; A vacuum drawer includes a drawer body with an opening for taking out and putting in, and a closure for closing the opening for taking out and putting in. The drawer body can be pulled out and installed in the storage chamber. A connecting joint is provided inside the drawer body. The closure has an air extraction hole. An air extraction device, connected to the air extraction port, is capable of extracting air from the inside of the vacuum drawer to create a low-pressure environment. The extraction vessel is detachably connected to the docking connector. When the docking connector is connected to the extraction vessel, the docking connector can automatically align with the vent as the drawer body is pushed into the storage chamber.

[0006] In this application, the extraction vessel and the vacuum drawer share the same air extraction device, eliminating the need for two separate air extraction systems. This helps reduce the overall cost of the machine and improve space utilization. The connector can be flipped up for storage, minimizing its impact on the interior space of the vacuum drawer. When extraction is required, the connector is flipped up and unfolded to connect the extraction vessel.

[0007] Optionally, the docking connector includes a connector body, a balance bracket, and a vent pipe. The balance bracket is rotatably installed inside the connector body, and the vent pipe is installed on the balance bracket. The two ends of the vent pipe are respectively used to connect the air extraction port and the extraction vessel. The balance bracket has a protrusion exposed outside the connector body, and the closure has a trigger part. As the drawer body is pushed into the storage chamber, the balance bracket rotates under the abutment of the protrusion and the trigger part, so that the balance bracket drives the vent pipe to dock with the air extraction port.

[0008] As the drawer body is pushed into the storage compartment, the protrusion and trigger part abut against each other, pushing the balance bracket to rotate. This causes the vent pipe to move upward under the action of the balance bracket and connect with the air extraction hole, thus eliminating the need for manual operation and making the connection convenient.

[0009] Optionally, the mating joint further includes an elastic element disposed between the balance bracket and the inner wall of the joint body, for pushing the balance bracket to reset when the trigger part disengages from the protrusion.

[0010] When the drawer body is pulled out of the storage compartment, the protrusion separates from the trigger part, and the elastic element releases its elastic force to push the balance bracket back to its original position, preparing for the next operation.

[0011] Optionally, the area of ​​the end of the vent pipe facing the air extraction hole is larger than the area of ​​the air extraction hole, so that even if the manufacturing and assembly tolerances affect the connection, the air extraction hole can still be successfully connected with the vent pipe, thereby improving the connection success rate and improving the air extraction effect.

[0012] Optionally, the closure is provided with a first connector and the mating joint is provided with a second connector. When the mating joint and the air extraction hole are in a mating state, the first connector and the second connector cooperate with each other to achieve locking.

[0013] The connection between the mating joint and the air extraction port is equipped with a first connector and a second connector that can work together to lock the connection, making the mating joint and the air extraction port more stable and preventing the connection between the mating joint and the air extraction port from shifting due to airflow.

[0014] Optionally, both the first and second connectors are magnetic components. When the mating joint is in the mating state with the air extraction port, the first and second connectors magnetically attract each other. This magnetic attraction between the first and second connectors ensures that the end of the vent pipe abuts against the sealing component, improving connection stability.

[0015] Optionally, one of the first connector and the second connector is an elastic buckle, and the other is a locking hole. When the mating joint is in the mating state with the air extraction port, the elastic buckle is engaged in the locking hole. After the mating joint is engaged with the air extraction port, the engagement of the elastic buckle and the locking hole provides a locking force, thereby fixing the relative positions of the mating joint and the closure member.

[0016] Optionally, the extraction vessel includes an inner cup, an outer cup, and a lid. The inner cup is at least partially inserted inside the outer cup. The inner cup has a through hole communicating with the outer cup. The lid covers the mouths of the inner cup and the outer cup. The lid has an exhaust port communicating with the interior of the inner cup and a vent hole communicating with the interior of the outer cup and the external environment. When the extraction vessel is connected to the docking connector, the exhaust port is connected to the air passage in the docking connector.

[0017] Optionally, the drawer body is provided with a positioning groove, the bottom of the extraction pot is inserted into the positioning groove, and the top of the extraction pot is used to connect with the docking connector. The positioning groove allows for quick determination of the extraction pot's placement, improving the docking efficiency between the docking connector and the extraction pot. The positioning groove also enhances the stability of the extraction pot during drawer opening and closing, preventing it from tilting or shifting due to collisions with other items.

[0018] Optionally, the drawer body has a front panel, and the distance between the air extraction hole and the front panel is less than half the length of the drawer body along the depth direction of the refrigerator, thereby controlling the length of the connecting joint and realizing the rational allocation and utilization of space. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of a refrigerator provided in an embodiment of this application.

[0021] Figure 2 This is a partial three-dimensional structural diagram of a refrigerator provided in an embodiment of this application.

[0022] Figure 3 for Figure 2 The exploded exploded structural diagram shown is shown.

[0023] Figure 4 for Figure 2The diagram shows a cross-sectional view of the structure.

[0024] Figure 5 for Figure 4 A magnified view of a portion of the structure shown.

[0025] Figure 6 for Figure 4 Another enlarged view of the structure shown.

[0026] Figure 7 This is an exploded structural diagram of the butt joint used in an embodiment of this application.

[0027] Figure 8 This is a partial cross-sectional view of a refrigerator used in another embodiment of this application.

[0028] Figure 9 for Figure 8 A magnified view of a portion of the structure shown.

[0029] Figure 10 This is an exploded structural diagram of the butt joint used in another embodiment of this application.

[0030] Figure 11 This is an exploded structural diagram of a vacuum drawer used in an embodiment of this application.

[0031] Figure 12 This is a three-dimensional structural diagram of the extraction vessel used in the embodiments of this application.

[0032] Figure 13 This is a partial cross-sectional structural diagram of the extraction vessel used in the embodiments of this application.

[0033] Figure 14 This is a schematic diagram of the extraction vessel used in the embodiments of this application when it is filled with water.

[0034] Figure 15 This is a schematic diagram of the extraction vessel used in the embodiments of this application during bubble impact.

[0035] Figure 16 This is a schematic diagram of the extraction vessel used in the embodiments of this application during depressurization and reflux.

[0036] The following are the labeling elements in the figure: 10. Box body; 20. Door body; 30. Vacuum drawer; 31. Drawer body; 310. Front panel; 311. Positioning groove; 32. Closure; 321. Air extraction vent; 322. Trigger; 35. Second magnetic closure; 40. Air extraction device; 41. Air extraction pump; 42. Air extraction pipeline; 50. Butt joint; 51. Joint body; 511. First housing; 512. Second housing; 513. Through hole; 514. Through hole; 52. Balance bracket; 521. Protrusion; 522. Connecting shaft; 53. Vent pipe; 531. Butt joint; 54. Elastic element; 55. First magnetic element; 61. First connecting piece; 62. Second connecting piece; 70. Extraction pot; 71. Inner cup; 711. Through hole; 72. Outer cup; 73. Lid; 731. First lid; 732. Second lid; 733. Tank; 734. Air extraction port; 735. Vent hole; 74. Filter. Detailed Implementation

[0037] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0038] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0039] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0040] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0041] This application provides a refrigerator, such as... Figures 1 to 4As shown, the device includes a housing 10 with a storage compartment, a vacuum drawer 30, a vacuum device 40, and an extraction vessel 70. The vacuum drawer 30 includes a drawer body 31 with an access port and a closure 32 for sealing the access port. The drawer body 31 is slidably installed within the storage compartment. A connecting joint 50 is flip-up and disposed within the drawer body 31, and the extraction vessel 70 is detachably connected to the connecting joint 50. The closure 32 has a vacuum port 321. When the connecting joint 50 is connected to the extraction vessel 70, as the drawer body 31 is pushed into the storage compartment, the connecting joint 50 automatically engages with the vacuum port 321.

[0042] like Figure 1 As shown, the refrigerator includes a cabinet 10 with a storage compartment, a door 20 connected to the cabinet 10 for opening and closing the storage compartment, and a refrigeration unit for supplying cold air to the storage compartment. The refrigerator can be a double-door refrigerator, a single-door refrigerator, a three-door refrigerator, or a French door refrigerator. Alternatively, the refrigerator can be a French door refrigerator, i.e., the upper part is a double-door refrigerator compartment providing ample storage space for users, and the lower part is a drawer-style freezer compartment, making it easier to categorize, store, and access frozen foods. The specific form is not limited in this embodiment.

[0043] The vacuum device 40 can remove some of the air inside the vacuum drawer 30, creating a negative pressure environment inside the vacuum drawer 30, thereby extending the shelf life of the food inside the vacuum drawer 30.

[0044] In some embodiments, such as Figure 2 and Figure 3 As shown, the closure 32 is sleeve-shaped and fixed in the storage compartment; the drawer body 31 is slidably installed inside the closure 32. As the drawer body 31 is pulled out from inside the closure 32, the access opening is exposed, allowing items to be placed or removed from the vacuum drawer 30; as the drawer body 31 is pushed into the closure 32, the closure 32 seals the access opening, forming a sealed storage space.

[0045] In some embodiments, such as Figure 11 As shown, the closure 32 is in the shape of a cover and is movably disposed within the storage chamber. It can move from a first position, separated from the access opening, to a second position to seal the access opening. When the drawer body 31 is pushed back into the storage chamber, the closure 32 moves to the second position, covering the access opening, thus creating a sealed storage space in the vacuum drawer 30. When the drawer body 31 is pulled out of the storage chamber, the closure 32 moves to the first position, separating from the access opening.

[0046] During extraction, pull out the drawer body 31, place the extraction vessel 70 inside the drawer body 31 and align it with the docking connector 50. Then, push the drawer body 31 in, close the vacuum drawer 30, and automatically align the docking connector 50 with the air extraction port 321. Thus, the extraction vessel 70 can be evacuated using the air extraction device 40 to perform the extraction operation.

[0047] Exemplarily, the docking joint 50 is rotatably mounted on the drawer body 31 via a hinge. When the docking joint 50 is not connected to the extraction pot 70, the docking joint 50 automatically rotates to the storage position under the action of gravity and fits against the side wall of the drawer body 31. As another example, the docking joint 50 is rotatably connected to the drawer body 31 via a hinge shaft. For instance, the hinge shaft is fixedly connected to the drawer body 31, and the docking joint 50 is in rotating fit with the hinge shaft. Alternatively, the hinge shaft is in rotating fit with the drawer body 31, and the docking joint 50 is fixedly connected to the hinge shaft. Optionally, the hinge shaft is a damping shaft, which allows the docking joint 50 to stay at any desired position as needed.

[0048] As shown in Figure 3 , the docking joint 50 is arranged on the front panel 310 of the vacuum drawer 30 in a flipable manner. In addition, the docking joint 50 may also be disposed on the side surface of the drawer body 31.

[0049] When the extraction pot 70 is not mounted on the docking joint 50, the docking joint 50 can be flipped and stored to reduce the occupation of the internal space of the vacuum drawer 30. When extraction is required, the docking joint 50 is flipped and unfolded, and the docking portion 531 is connected to the docking joint 50, thereby realizing the connection between the docking joint 50 and the extraction pot 70.

[0050] In the refrigerator provided by the embodiments of the present application, the extraction pot 70 is detachably placed in the drawer body 31, and can perform extraction by means of the air extraction device 40 matched with the vacuum drawer 30, so that no additional air extraction structure needs to be configured for the extraction pot 70, the hardware quantity of the refrigerator is simplified, and the cost of the whole machine is reduced while the extraction function is added. By providing the flipable docking joint 50, the occupation of the internal space of the vacuum drawer 30 by the docking joint 50 when no extraction is performed can be reduced, and the user experience is improved.

[0051] In some specific embodiments of the present application, as shown in Figures 4 to 7 , the docking joint 50 includes a joint main body 51, a balance bracket 52 and a vent pipe 53. The balance bracket 52 is rotatably mounted inside the joint main body 51; the vent pipe 53 is mounted on the balance bracket 53, with its two ends respectively used for connecting the air extraction hole 321 and the extraction pot 70. The balance bracket 52 has a protrusion 521 exposed outside the joint main body 51. The closing member 32 has a trigger portion 322. As the drawer body 31 is pushed into the storage compartment, the balance bracket 52 rotates under the abutting action of the protrusion 521 and the trigger portion 322, so that the balance bracket 52 drives the vent pipe 53 to dock with the air extraction hole 321.

[0052] The connector body 51 includes a first housing 511 and a second housing 512, which are detachably connected to form a mounting cavity. Optionally, one of the first housing 511 and the second housing 512 has a slot, and the other has a buckle. The buckle is engaged in the slot, so that the first housing 511 and the second housing 512 are snap-fitted together. The middle part of the balance bracket 52 is hinged in the mounting cavity, and the rotation axis of the balance bracket 52 is perpendicular to the length direction of the balance bracket 52. As the balance bracket 52 rotates, one end of the balance bracket 52 rises and the other end falls. In some embodiments, the balance bracket 52 has connecting shafts 522 on opposite sides, which are rotatably inserted into the mounting cavity. The axis of the connecting shafts 522 is perpendicular to the length direction of the balance bracket 52. As the balance bracket 52 rotates, one end of the balance bracket 52 moves upward and the other end moves downward. In some other embodiments, the balance bracket 52 is sleeved and fixed on a shaft, the two ends of which are respectively rotatably engaged with the connector body 51, so that the balance bracket 52 can rotate within the connector body 51.

[0053] The connection points of the balance support 52 and the vent pipe 53, and the protrusion 521, are respectively located on both sides of the rotation axis of the balance support 52. Exemplarily, one end of the vent pipe 53 is fixed to the connector body 51 for docking with the extraction vessel 70. As the balance support 52 rotates, the other end of the vent pipe 53 can dock with or detach from the suction port 321. Understandably, the top and bottom walls of the connector body 51 are respectively provided with through holes 514 corresponding to the port of the vent pipe 53, ensuring that the port of the vent pipe 53 can be exposed for connection with the extraction vessel 70 and the suction port 321.

[0054] like Figure 7 As shown, the first housing 511 is provided with a through hole 513, and the protrusion 521 passes through the through hole 513 and is exposed on the outside of the connector body 51.

[0055] In some embodiments, the length of the protrusion 521 along the width direction of the balance bracket 52 is not less than half the width of the balance bracket 52, and the length of the trigger portion 322 is approximately equal to the length of the protrusion 521. When the protrusion 521 abuts against the trigger portion 322, a more balanced force can be provided to the balance bracket 52. The width direction of the balance bracket 52 is parallel to the axis of rotation of the balance bracket 52.

[0056] In some embodiments, multiple protrusions 521 are provided, and the multiple protrusions 521 are spaced apart along the width direction of the balance bracket 52. Multiple trigger portions 322 are correspondingly provided, so that each protrusion 521 and trigger portion 322 is provided in a one-to-one correspondence; or, the trigger portion 322 is strip-shaped and can simultaneously abut against at least two protrusions 521. Optionally, there are two protrusions 521, and the trigger portion 322 is elongated and protrudes from the side of the closure 32 facing the inside of the drawer body 31, so that the trigger portion 322 can simultaneously abut against two protrusions 521. Further, the two protrusions 521 are symmetrically arranged along the central axis of the length direction of the balance bracket 52, so that the force on the left and right sides of the balance bracket 52 is more balanced. Optionally, there are two protrusions 521, and two corresponding trigger portions 322 are provided, so that each protrusion 521 and trigger portion 322 is provided in a one-to-one correspondence.

[0057] When multiple protrusions 521 are provided, multiple through holes 513 can be provided accordingly; or, the through hole 513 is strip-shaped, so that multiple protrusions 521 share a single through hole 513. For example, as shown... Figure 7 As shown, the connector body 51 has a channel, and a square through hole 513 is formed at each end of the channel, so that the through hole 513 is correspondingly arranged with the protrusion 521. The through hole 513 forms a channel for the longitudinal movement of the protrusion 521, and can provide guidance for the protrusion 521.

[0058] In some embodiments, the protrusion 521 is separately disposed from the connector body 51, and the protrusion 521 is telescopically mounted on the side of the connector body 51 facing the closure member 32. In its natural state, one end of the protrusion 521 extends to the outside of the connector body 51, and the other end faces the balance bracket 52. As the drawer body 31 is pushed into the storage chamber, the bottom wall of the drawer body 31 moves under the action of the trigger part 322, thereby pushing the balance bracket 52 to rotate around the center, causing the other end of the balance bracket 52 to move away from the bottom wall of the drawer body 31, thereby driving the vent pipe 53 to connect with the air extraction hole 321. When the protrusion 521 is abutted by the trigger part 322, the rod moves inward toward the inside of the connector body 51, and the elastic reset member stores force; when the protrusion 521 disengages from the trigger part 322, the elastic reset member releases its elastic force, pushing the rod outward toward the outside of the connector body 51.

[0059] In some other embodiments, such as Figure 7 As shown, the protrusion 521 and the connector body 51 are an integral structure. When the protrusion 521 abuts against the trigger part 322, it can directly drive the balance bracket 52 to rotate.

[0060] The protrusion 521 and / or the trigger part 322 have a guide slope. When the connector body 51 and the closure 32 move relative to each other, the protrusion 521 and the trigger part 322 abut against each other under the action of the guide slope.

[0061] The guide slope can be either a plane or a curved surface. For example, the end of the protrusion 521 is spherical to form a spherical guide slope, which facilitates the trigger part 322 to slide from one side of the protrusion 521 to the top of the protrusion 521.

[0062] In some embodiments, the protrusion 521 has a guiding slope, and the trigger portion 322 has a columnar outward convex structure without a guiding slope. In some embodiments, the protrusion 521 is columnar with no guiding slope on its surface, while the trigger portion 322 has a guiding slope. In some embodiments, both the protrusion 521 and the trigger portion 322 have guiding slopes. Exemplarily, the protrusion 521 is spherical, and its spherical surface forms a guiding slope; the trigger portion 322 is frustum conical to form a guiding slope.

[0063] As the drawer body 31 is pushed in, relative sliding will occur between the protrusion 521 and the trigger part 322. The refrigerator provided in this application embodiment makes the sliding between the protrusion 521 and the trigger part 322 smoother by providing a guide slope on the protrusion 521 and / or the trigger part 322.

[0064] Optionally, the top of the protrusion 521 is provided with a groove, and when the mating connector 50 and the air extraction hole 321 are in a mating state, the end of the trigger part 322 is accommodated in the groove.

[0065] If the trigger part 322 is pressed against the top of the protrusion 521 alone, the trigger part 322 is prone to lateral displacement along the protrusion 521 under external impact or vibration, causing it to disengage from the contact position and affecting the docking effect between the connector body 51 and the air extraction hole 321. Therefore, this embodiment provides a groove on the top of the protrusion 521, allowing the trigger part 322 to be embedded within the groove, thereby providing lateral constraint, reducing the impact of external impacts, and improving the stability of the contact position between the protrusion 521 and the trigger part 322.

[0066] Understandably, when the highest point of the protrusion 521 abuts against the trigger part 322 and when the trigger part 322 is contained within the groove, both the mating joint 50 and the air extraction hole 321 are in a mating state. That is, the depth of the groove does not affect the mating state of the mating joint 50 and the air extraction hole 321.

[0067] The refrigerator provided in this application embodiment has a protrusion 521 that can be lifted and lowered on the connector body 51, and its lifting path overlaps with the balance bracket 52. When the protrusion 521 is pushed by the trigger part 322, it can push the balance bracket 52 to rotate, so that the vent pipe 53 at the other end of the balance bracket 52 can move upward and automatically connect with the air extraction hole 321.

[0068] In some specific embodiments of this application, such as Figure 5 , Figure 6 and Figure 7As shown, the mating joint 50 also includes an elastic element 54, which is disposed between the balance bracket 52 and the inner wall of the joint body 51.

[0069] For example, the elastic element 54 is a spring, a sheet, etc. When the air extraction hole 321 and the vent pipe 53 are in the docked state, the elastic element 54 stores force. When the drawer body 31 is pulled out from the storage compartment, the protrusion 521 disengages from the trigger part 322, the elastic element 54 releases its elastic force, and pushes the balance bracket 52 to reset.

[0070] like Figure 5 and Figure 6 As shown, the balance bracket 52 has a connecting post, and the elastic element 54 is sleeved on the connecting post. The connector body 51 has a receiving groove, and the end of the elastic element 54 is received in the receiving groove. The connecting post and the protrusion 521 are respectively located on opposite sides of the balance bracket 52 and correspond to each other. When the protrusion 521 pushes the balance bracket 52 to rotate, the elastic element 54 is compressed and stores energy. When the protrusion 521 disengages from the trigger part 322, the elastic element 54 releases its elastic force, the balance bracket 52 resets, and drives the vent pipe 53 back to its initial state, waiting for the next automatic docking with the air extraction port 321.

[0071] In addition, the elastic element 54 can also be set at the end where the balance bracket 52 is connected to the vent pipe 53, as long as the elastic element 54 can provide a reset force for the balance bracket 52 when the protrusion 521 is disengaged from the trigger part 322.

[0072] The refrigerator provided in this application embodiment provides a force for the reset of the balance bracket 52 after rotation by setting an elastic element 54 between the inner wall of the balance bracket 52 and the connector body 51, which facilitates the automatic docking of the docking connector 50 and the air extraction hole 321 for the next time.

[0073] In some specific embodiments of this application, the vent pipe 53 is a flexible structural component such as a rubber or silicone part, which can be stretched under the action of the balance bracket 52 to achieve a sealed connection with the air extraction port 321. In addition, the vent pipe 53 may also have corrugated sections, giving the vent pipe 53 a certain degree of elasticity. Thus, the port of the vent pipe 53 can move upwards with the movement of the balance bracket 52 to connect with the air extraction port 321.

[0074] like Figure 6 As shown, the end of the vent pipe 53 away from the air extraction port 321 is fitted onto the connector body 51. Optionally, the connector body 51 has a protruding annular connecting groove, and the end of the vent pipe 53 has a flange with an annular connecting groove. The connecting edge is fitted into the connecting groove, so that the flange at the end of the vent pipe 53 covers the surface of the connector body 51.

[0075] In some specific embodiments of this application, such as Figure 6As shown, the area of ​​the end of the vent pipe 53 facing the suction port 321 is larger than the area of ​​the suction port 321. When the connecting joint 50 and the suction port 321 are in the connected state, the projection of the suction port 321 in the plane where the vent pipe 53 is located is inside the opening of the vent pipe 53.

[0076] For example, the end of the vent pipe 53 facing the suction port 321 is gradually widened along the suction direction. This widening of the end of the vent pipe 53 serves two purposes: firstly, it increases the size of the port, facilitating connection with the suction port 321 and reducing the precision requirements of manufacturing; secondly, the widening of the end of the vent pipe 53 also allows for compression sealing after connection with the suction port 321, aided by the force of the balance bracket 52, improving the sealing performance of the connection. For instance, the end of the vent pipe 53 facing the suction port 321 may be flared.

[0077] For example, the end of the vent pipe 53 facing the suction port 321 is stepped, and the diameter of the vent pipe 53 increases along the suction direction. For instance, the end of the vent pipe 53 facing the suction port 321 includes a first connecting section and a second connecting section connected together. The first connecting section is a tube of uniform thickness, and its diameter is larger than the diameter of the opening of the second connecting section connected to the first connecting section. As the vacuum drawer 30 is pushed in, the end of the first connecting section away from the second connecting section aligns with the suction port 321.

[0078] The refrigerator provided in this application embodiment has a vent pipe 53 with an opening area larger than the air extraction hole 321 opening area, so that even if the manufacturing assembly tolerance affects the connection, the air extraction hole 321 can still be successfully connected with the vent pipe 53.

[0079] In some embodiments of this application, such as Figures 8 to 10 As shown, the connecting connector 50 includes a connector body 51, a first magnetic 55, and a vent pipe 53. The vent pipe 53 is mounted on the connector body 51, with one end for connecting to the extraction vessel 70 and the other end for connecting to the vent hole 321. The first magnetic 55 is disposed on the vent pipe 53. The sealing member 32 is provided with a second magnetic 35. As the drawer body 31 is pushed into the storage chamber, the first magnetic 55 and the second magnetic 35 are attracted to each other, thereby causing the vent pipe 53 to move upward and automatically connect with the vent hole 321.

[0080] For example, the first magnetic suction member 55 is a ring structure, sleeved on the outside of the vent pipe 53. The second magnetic suction member 35 is fixed to the closure member 32. When the drawer body 31 is pushed into the storage compartment, the first magnetic suction member 55 moves slightly upward under the attraction of the second magnetic suction member 35, such as... Figure 9 As shown, the opening of the vent pipe 53 moves from the shape shown by the dashed line to the position shown by the solid line, so as to abut against the closure 32, thereby connecting the air extraction port 321 and the vent pipe 53. Understandably, the vent pipe 53 is flexible and can extend and retract.

[0081] Optionally, the first magnetic attractor 55 has a first limiting part protruding outward. When the first magnetic attractor 55 and the second magnetic attractor 35 are in the attracted state, the first limiting part abuts against the inner side of the top wall of the connector body 51. The top wall of the connector body 51 refers to the wall surface of the connector body 51 facing the air extraction hole 321.

[0082] Optionally, the first magnetic suction member 55 is provided with a second limiting part. When the first magnetic suction member 55 and the second magnetic suction member 35 are in a non-attractive state, the second limiting part abuts against the limiting structure inside the connector body 51, thereby using the second limiting part to constrain the falling position of the vent pipe 53 after it separates from the air extraction hole 321.

[0083] For example, such as Figure 10 As shown, the connector body 51 has a through hole 514. When the drawer body 31 is pushed into the storage compartment, as... Figure 9 As shown, the first magnetic 55 extends from the through hole 514 under the attraction of the second magnetic 35, thereby causing the vent pipe 53 to move upward and align with the air extraction hole 321. During this process, the through hole 514 provides guidance for the upward movement of the first magnetic 55. When the drawer body 31 is pulled out of the storage compartment, the first magnetic 55 separates from the second magnetic 35, and the first magnetic 55 falls back into the connector body 51 under the action of gravity, causing the vent pipe 53 to move downward and reset.

[0084] The refrigerator provided in this application embodiment has a first magnetic suction member 55 in the docking joint 50 and a second magnetic suction member 35 in the sealing member 32. As the vacuum drawer 30 is closed, the second magnetic suction member 35 and the first magnetic suction member 55 generate an attraction force, which drives the opening of the vent pipe 53 to move upward and dock with the sealing member 32. The structure is simple.

[0085] The closure 32 is provided with a first connector 61, and the mating joint 50 is provided with a second connector 62. When the mating joint 50 and the air extraction port 321 are in the mating state, the first connector 61 and the second connector 62 cooperate with each other to achieve locking.

[0086] When the docking joint 50 and the air extraction hole 321 are in the docked state, the first connector 61 and the second connector 62 cooperate to provide additional locking force, enhancing the stability of the docking joint 50 and the air extraction hole 321. It should be noted that as the drawer body 31 is pulled out, the docking joint 50 separates from the air extraction hole 321, and the first connector 61 and the second connector 62 can automatically unlock accordingly.

[0087] For example, the first connector 61 and the second connector 62 are locked together by means of magnetic attraction, snap-fit, or interference fit. When the drawer body 31 is pulled out, the first connector 61 and the second connector 62 disengage and separate from each other.

[0088] The first connector 61 and the second connector 62, which cooperate with each other, provide additional force to enhance the stability of the docking when the docking joint 50 is docked with the air extraction port 321, making the extraction process smoother.

[0089] In some alternative embodiments, such as Figure 4 and Figure 7 As shown, both the first connector 61 and the second connector 62 are magnetic components. When the mating joint 50 and the air extraction port 321 are in the mating state, the first connector 61 and the second connector 62 are magnetically attracted to each other.

[0090] For example, one of the first connector 61 and the second connector 62 may be a magnet, while the other may be a magnetic metal such as iron, cobalt, or nickel. Alternatively, both the first connector 61 and the second connector 62 may be magnets with opposite polarities, allowing them to attract each other. Or, the first connector 61 and the second connector 62 may be electromagnets, magnetically attracting each other when the mating joint 50 aligns with the vent 321.

[0091] For example, both the first connector 61 and the second connector 62 are annular magnets. The first connector 61 is arranged around the outer periphery of the air extraction hole 321, and the second connector 62 is arranged around the outer periphery of the vent pipe 53. Through the magnetic attraction of the first connector 61 and the second connector 62, the connection between the air extraction hole 321 and the end of the vent pipe 53 is subjected to balanced circumferential force, thereby improving the connection stability.

[0092] In some alternative embodiments, one of the first connector 61 and the second connector 62 is a resilient snap-fit, and the other is a locking hole. When the mating joint 50 and the air extraction port 321 are in the mating state, the resilient snap-fit ​​is engaged in the locking hole.

[0093] For example, the closure 32 has a locking hole, and the mating joint 50 has a resilient buckle. As the vacuum drawer 30 closes, the resilient buckle engages with the locking hole. Multiple locking holes can be provided, spaced apart circumferentially along the extraction port 321, with each resilient buckle corresponding to a locking hole to improve the stability of the connection between the extraction port 321 and the mating joint 50. Alternatively, the closure 32 may have a resilient buckle, and the mating joint 50 may have a locking hole. Or, the closure 32 may have both a resilient buckle and a locking hole, and the mating joint 50 may have corresponding locking holes and a resilient buckle, with the resilient buckle engaging with the locking hole.

[0094] In the refrigerator provided in this application embodiment, one of the first connector 61 and the second connector 62 is an elastic buckle, and the other side is a locking hole. When the docking joint 50 is docked with the air extraction hole 321, the locking force is provided by the locking cooperation between the elastic buckle and the locking hole, so that the position of the docking joint 50 and the sealing member 32 is relatively fixed.

[0095] In addition, an electrically driven lifting mechanism, such as a lead screw module or an electric actuator, can be installed inside the docking joint 50. The lifting mechanism is connected to the vent pipe 53. When the vacuum drawer 30 is closed, the lifting mechanism drives the vent pipe 53 to move upward and dock with the air extraction port 321.

[0096] In some specific embodiments of this application, such as Figure 4 and Figure 12 As shown, the extraction pot 70 includes an inner cup 71, an outer cup 72, and a lid 73. The inner cup 71 is at least partially inserted inside the outer cup 72. The inner cup 71 has a through hole 711 that communicates with the outer cup 72. The lid 73 covers the mouths of the inner cup 71 and the outer cup 72.

[0097] The lid 73 is provided with an air extraction port 734 and a vent 735. The air extraction port 734 is connected to the interior of the inner cup 71, and the vent 735 keeps the interior of the outer cup 72 connected to the external environment. When the extraction vessel 70 is connected to the docking connector 50, the air extraction port 734 is connected to the air passage in the docking connector 50.

[0098] For example, the lid 73 is threadedly connected to the inner cup 71 for easy assembly and disassembly. After the lid 73 is connected to the inner cup 71, it is inserted into the outer cup 72, which is threadedly connected to the lid 73. The vent 735 keeps the outer cup 72 in communication with the external environment and can also serve as a pouring spout after extraction and a drinking spout.

[0099] The outer cup 72 holds the liquid, while the inner cup 71 contains the material to be extracted, such as coffee, tea leaves, or milk tea powder. A through-hole 711 connects the inner cup 71 to the outer cup 72. The extraction vessel 70 is connected to the docking connector 50, and after the docking connector 50 automatically aligns with the vent 321, the venting device 40 communicates with the interior of the inner cup 71 through the vent 321, the air passage within the docking connector 50, and the vent 734. During extraction, the venting device 40 operates, drawing out the gas from the inner cup 71 and creating a negative pressure environment. The liquid from the outer cup 72 then enters the inner cup 71 through the through-hole 711 to moisten the material. After the venting device 40 stops operating, the high-concentration extract in the inner cup 71 flows back into the outer cup 72, mixing with the existing liquid. Through the intermittent operation of the venting device 40, the material is extracted multiple times, allowing its flavor to be fully released.

[0100] Optionally, the sidewalls and / or bottom wall of the inner cup 71 are provided with through holes 711. In some embodiments, both the bottom wall and the sidewalls of the inner cup 71 are provided with through holes 711. In still other embodiments, the sidewalls of the inner cup 71 are provided with through holes 711, but the bottom wall of the inner cup 71 is not provided with through holes 711.

[0101] In some embodiments, a material box is detachably mounted on the bottom of the inner cup 71, the material box having a hopper for holding materials. The material box has multiple filter holes on its body, allowing the hopper to communicate with the interior of the inner cup 71. In yet other embodiments, such as Figure 13 As shown, the extraction vessel 70 also includes a filter 74, which is fitted inside the inner cup 71 and forms a material storage bin with the bottom and side walls of the inner cup 71. That is, the material is placed directly at the bottom of the inner cup 71, and the filter 74 limits the position of the material, preventing it from moving upwards under the action of the liquid.

[0102] In the case where the extraction device includes a filter 74, a filter screen is installed at the through-hole 711, and the mesh size of the filter screen is not less than 200 mesh. For example, the mesh size of the filter screen is 200 mesh, 325 mesh, 480 mesh, etc. During the extraction process, when air enters the inner cup 71 through the fine mesh of the filter screen, it is cut into a large number of tiny bubbles by the edges of the mesh, which enhances the turbulence of the gas on the liquid. At the same time, the small bubbles rise slowly and stay in the liquid for a longer time, continuously acting on the material. Moreover, the large number of tiny bubbles gently and comprehensively agitate the material, avoiding localized violent impacts that could lead to material breakage or excessive generation of fine powder.

[0103] like Figure 14 As shown, the inner cup 71 contains material, and the outer cup 72 contains liquid. The material is blocked by the filter 74. Specifically, a limiting post protrudes from the side of the filter 74 facing the lid 73. The limiting post abuts against the lid 73 to restrict the upward movement of the filter 74. Figure 15 As shown, during the process of the suction device 40 evacuating the inner cup 71, a negative pressure is formed inside the inner cup 71. Liquid in the outer cup 72 enters the inner cup 71 through the through hole 711, and the liquid in the outer cup 72 rises and soaks the material, causing the liquid level in the outer cup 72 to gradually decrease. When the liquid level in the outer cup 72 drops to be level with the through hole 711, the suction device 40 continues to operate, and gas enters the inner cup 71 through the through hole 711, forming bubbles. These bubbles pass through the liquid and material in the inner cup 71, further releasing the effective components. During this process, as... Figure 15 As indicated by the upward arrow, the gas inside the inner cup 71 is extracted by the suction device 40; as shown... Figure 15 As indicated by the downward arrow, gas from the external environment enters the outer cup 72 through the vent 735. Then, the pump 40 stops working, the air pressure inside the inner cup 71 recovers, and the liquid inside the inner cup 71 flows back into the outer cup 72 under gravity. During this process, as... Figure 16 As indicated by the upward arrow, during the liquid reflux process, the gas inside the outer cup 72 is forced out through the vent 735 into the external environment. Figure 16 As indicated by the downward arrow, gas from the external environment enters the inner cup 71, causing the liquid inside the inner cup 71 to flow back to the outer cup 72.

[0104] Thus, through the intermittent operation of the suction device 40, combined with the exposure state of the through-hole 711 on the inner cup 71 according to the liquid level change, the three steps of negative pressure water absorption and wetting of the material, gas entering the liquid to generate bubble impact, and depressurization gravity reflux are automatically completed. Among them, liquid wetting completes the transfer of liquid and preliminary wetting extraction, establishing the basic concentration field and substance distribution. Bubble disturbance breaks the concentration boundary layer that may be formed, reactivating the mass transfer process, allowing the flavor substances inside the material to be released into the water more quickly and fully, improving the concentration and flavor fullness of the extract. This sequence of wetting first and then disturbance allows each cycle to simultaneously obtain the dual benefits of static soaking and dynamic enhancement.

[0105] It should be noted that when the liquid level in the outer cup 72 drops to be level with the through hole 711, if liquid continues to flow into the inner cup 71, the liquid level in the outer cup 72 will continue to drop, causing a portion of the through hole 711 to be exposed above the liquid level in the outer cup 72. At this time, external air will enter the inner cup 71 through the through hole 711, forming bubbles. Before the liquid level in the outer cup 72 drops to be level with the through hole 711, the suction device 40 operates, and the liquid in the outer cup 72 continuously flows into the inner cup 71 through the through hole 711, causing the liquid level in the inner cup 71 to rise and the liquid level in the outer cup 72 to fall. During this process, no bubbles are generated in the inner cup 71. That is, the point at which the liquid level in the outer cup 72 drops to be level with the opening of the through hole 711 is the dividing point between the generation of bubbles and the absence of bubbles in the inner cup 71.

[0106] In some embodiments, the lid 73 includes a first lid body 731 and a second lid body 732 hinged to the first lid body 731. The second lid body 732 is provided with a vent hole 735 and a groove 733 recessed into the inner cup 71. The bottom of the groove 733 is provided with an air extraction port 734 communicating with the interior of the inner cup 71.

[0107] like Figure 4 and Figure 8As shown, during extraction, the first cover 731 is flipped over, and the connecting joint 50 is aligned with the second cover 732, connecting the vent 734 to the air passage within the connecting joint 50. When the first cover 731 is closed over the second cover 732, the first cover 731 at least covers the groove 733. Exemplarily, when the first cover 731 is closed over the second cover 732, the first cover 731 seals the groove 733 and the vent 735, preventing external dust from entering the inner cup 71 and the outer cup 72, thus providing protection. Alternatively, when the first cover 731 is closed over the second cover 732, the first cover 731 seals the groove 733, and the vent 735 is exposed outside the first cover 731.

[0108] The connecting joint 50 has a connecting portion 531, which is inserted into and seals the groove 733 to form a relatively sealed air cavity. For example, the connecting portion 531 is constructed at the end of the vent pipe 53. When the connecting portion 531 is inserted into the groove 733, the flexible sealing of the groove 733 by the vent pipe 53 forms a relatively sealed air cavity, allowing the vent pipe 53 to communicate with the air extraction port 734 through this air cavity.

[0109] For example, the docking part 531 is constructed on the connector body 51, and the end of the vent pipe 53 is exposed in the docking part 531. When the docking part 531 is inserted into the groove 733, the sealing groove 733 forms a relatively closed air cavity, and the vent pipe 53 communicates with the interior of the inner cup 71 through the air cavity.

[0110] In the refrigerator provided in this application embodiment, the docking part 531 in the docking joint 50 docks with the groove 733 on the second cover 732 and seals the groove 733, so that the vent pipe 53 is connected to the inside of the groove 733. The bottom of the groove 733 is provided with a vent hole 735, thereby allowing the vent pipe 53 to be connected to the inside of the inner cup 71.

[0111] In some embodiments, the top of the lid 73 has an annular groove surrounding the circumference of the vent 734. The connecting joint 50 has an annular sealing portion surrounding the opening of the vent pipe 53. When the extraction vessel 70 is connected to the connecting joint 50, the sealing portion is inserted into the annular groove, allowing the vent 734 to communicate with the vent pipe 53.

[0112] For example, the lid 73 includes a first lid body 731 and a second lid body 732 hinged to the first lid body 731. The second lid body 732 is provided with a vent hole 735 and a groove 733 recessed into the inner cup 71. The bottom of the groove 733 is provided with a first through hole communicating with the interior of the inner cup 71. The first lid body 731 covers the second lid body 732 to seal the groove 733. An air extraction port 734 is provided on the first lid body 731 to allow the groove 733 to communicate with the external environment. The side of the first lid body 731 facing outward is provided with an annular groove. The mating joint 50 is directly connected to the first lid body 731, so that the air extraction hole 321 communicates with the inner cup 71 through the vent pipe 53, the air extraction port 734, the groove 733, and the first through hole.

[0113] In some specific embodiments of this application, the drawer body 31 is provided with a positioning groove 311, and the extraction pot 70 is inserted into the positioning groove 311.

[0114] The shape and size of the positioning groove 311 are similar to those of the extraction vessel 70. During extraction, the positioning groove 311 allows for quick determination of the placement position of the extraction vessel 70, which helps improve the docking efficiency between the connector 50 and the extraction vessel 70. At the same time, the positioning groove 311 also enhances the stability of the extraction vessel 70 during the pulling out of the drawer body 31, preventing the extraction vessel 70 from tilting or shifting due to collisions with items.

[0115] In some specific embodiments of this application, the drawer body 31 has a front panel 310, and the distance between the air extraction hole 321 and the front panel 310 is less than half the length of the vacuum drawer 30 along the pulling direction.

[0116] Optionally, the distance between the vent 321 and the front panel 310 is one-third or one-quarter of the length of the vacuum drawer 30 along the pulling direction.

[0117] By controlling the position of the vent 321, the extraction vessel 70 is positioned close to the front end of the vacuum drawer 30, facilitating easy access to and removal of the extraction vessel 70. Furthermore, if the distance between the vent 321 and the front panel 310 is too great when the coupling 50 is located on the front panel 310, the coupling 50 will be too long, occupying a significant amount of space during extraction. By controlling the distance between the vent 321 and the front panel 310 to be less than half the length of the vacuum drawer 30 in the pull-out direction, the length of the coupling 50 can be controlled, achieving a more efficient allocation and utilization of space.

[0118] In some embodiments, the distance between the vent 321 and the side wall of the vacuum drawer 30 is less than half the length of the vacuum drawer 30 along its width. Thus, the vent 321 is located near a corner at the front end of the vacuum drawer 30. Correspondingly, during extraction, the extraction vessel 70 is located at the front corner of the drawer body 31 for easy access.

[0119] In some specific embodiments of this application, the mating joint 50 is provided on the front panel 310 or the side panel of the drawer body 31.

[0120] In some specific embodiments of this application, such as Figure 2 As shown, the air extraction device 40 includes an air extraction pump 41, an air extraction pipeline 42, and a pressure relief valve. One end of the air extraction pipeline 42 is connected to the air extraction pump 41, and the other end is connected to the air extraction port 321. The pressure relief valve is installed on the air extraction pipeline 42.

[0121] During the vacuuming process of the vacuum drawer 30, the vacuum pump 41 runs continuously. When the air pressure inside the vacuum drawer 30 drops to the preset air pressure, the vacuum pump 41 stops running, stabilizing the air pressure inside the vacuum drawer 30 at the preset air pressure. When the vacuum drawer 30 is opened, the pressure relief valve opens, breaking the negative pressure environment inside the vacuum drawer 30, making it easier for the drawer body 31 to be pulled out.

[0122] During the extraction process, the vacuum pump 41 operates intermittently. When the vacuum pump 41 is running, the liquid in the outer cup 72 enters the inner cup 71 to wet the material; when the vacuum pump 41 stops running, the high-concentration extract in the inner cup 71 flows back into the outer cup 72. Specifically, when the vacuum pump 41 stops running, the pressure relief valve is opened to connect the interior of the inner cup 71 with the external environment, thereby allowing the liquid to flow smoothly back into the outer cup 72.

[0123] In some specific embodiments of this application, the vacuum pump 40 includes a bidirectional air pump and a connecting pipe. One end of the connecting pipe is connected to the bidirectional air pump, and the other end is sealed to the vacuum port 321. The bidirectional air pump can operate in both directions. When the vacuum drawer 30 is evacuated, the bidirectional air pump runs along a first direction and stops operating when the air pressure inside the vacuum drawer 30 drops to a preset air pressure. When extraction is performed using the extraction vessel 70, the bidirectional air pump first runs along the first direction for a preset time to evacuate the inner cup 71 of the inner cup 71, and then runs in the opposite direction for a second time to pressurize the interior, causing the liquid inside the inner cup 71 to quickly flow back to the outer cup 72. Thus, the bidirectional air pump operates alternately in two directions to achieve multiple extractions of the material.

[0124] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A refrigerator, characterized in that, include: The container has a storage compartment; A vacuum drawer includes a drawer body with an access opening and a closure for closing the access opening. The drawer body is pull-out and installed in the storage compartment, and the closure has an air extraction hole. An air extraction device, connected to the air extraction port, is capable of extracting air from the inside of the vacuum drawer to create a low-pressure environment. The connecting joint is flip-mounted on the drawer body; The extraction vessel is detachably connected to the docking connector. When the docking connector is connected to the extraction vessel, the docking connector can automatically align with the vent hole as the drawer body is pushed into the storage chamber.

2. The refrigerator as described in claim 1, characterized in that, The connector includes a connector body, a balance bracket, and a vent pipe. The connector body is disposed on the drawer body. The balance bracket is rotatably installed inside the connector body. The vent pipe is installed on the balance bracket. The two ends of the vent pipe are respectively used to connect the air extraction port and the extraction vessel. The balance bracket has a protrusion exposed outside the connector body. The closure has a trigger part. As the drawer body is pushed into the storage chamber, the balance bracket rotates under the abutment of the protrusion and the trigger part, so that the balance bracket drives the vent pipe to connect with the air extraction port.

3. The refrigerator as described in claim 2, characterized in that, The docking joint also includes an elastic element disposed between the balance bracket and the inner wall of the joint body, which is used to push the balance bracket to reset when the trigger part disengages from the protrusion.

4. The refrigerator as described in claim 2, characterized in that, The area of ​​the end of the vent pipe facing the air extraction hole is larger than the area of ​​the air extraction hole.

5. The refrigerator as described in claim 1, characterized in that, The closure is provided with a first connector and the docking joint is provided with a second connector. When the docking joint and the air extraction hole are in a docking state, the first connector and the second connector cooperate with each other to achieve locking.

6. The refrigerator as described in claim 5, characterized in that, Both the first connector and the second connector are magnetic components. When the mating joint is in the mating state with the air extraction hole, the first connector and the second connector are magnetically attracted to each other.

7. The refrigerator as described in claim 5, characterized in that, One of the first connector and the second connector is an elastic buckle, and the other is a locking hole. When the mating joint and the air extraction hole are in a mating state, the elastic buckle is engaged in the locking hole.

8. The refrigerator as described in any one of claims 1 to 7, characterized in that, The extraction vessel includes an inner cup, an outer cup, and a lid. The inner cup is at least partially inserted inside the outer cup. The inner cup has a through hole communicating with the outer cup. The lid covers the mouths of the inner cup and the outer cup. The lid has an exhaust port communicating with the interior of the inner cup and a vent hole communicating with the interior of the outer cup and the external environment. When the extraction vessel is connected to the docking connector, the exhaust port is connected to the air passage in the docking connector.

9. The refrigerator as described in any one of claims 1 to 7, characterized in that, The drawer body is provided with a positioning groove, the bottom of the extraction pot is inserted into the positioning groove, and the top of the extraction pot is used to connect with the docking connector.

10. The refrigerator as claimed in any one of claims 1 to 7, characterized in that, The drawer body has a front panel, and the distance between the vent and the front panel is less than half the length of the drawer body along the depth direction of the refrigerator.

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