Refrigeration appliance

Abstract

This invention relates to a refrigeration device, comprising an inner liner forming a storage space and a vacuum drawer disposed within the storage space. The vacuum drawer includes a drawer body and a cover covering the opening of the drawer body. The drawer body and the cover form a cavity for storage. The vacuum drawer also includes a vacuuming device disposed outside the cavity and communicating with the cavity, and a sealing assembly located inside the cavity. Through this structure, food can be vacuum-sealed at low temperatures, thereby extending its storage time. Users can also remove the vacuum-sealed food and place it in other storage spaces, meeting diverse storage needs.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a refrigeration equipment capable of achieving low-temperature plastic sealing. Background Technology

[0002] Currently, although some high-end refrigeration equipment has a shrink-wrapping function, the shrink-wrapping part is located on the door of the refrigeration equipment or drawer. That is, the shrink-wrapping function on the refrigeration equipment only uses the vacuum device of the refrigeration equipment to vacuum seal food at room temperature, and cannot achieve vacuum sealing of food in a low-temperature environment. Summary of the Invention

[0003] This invention provides a refrigeration device capable of low-temperature plastic sealing to solve one of the above-mentioned problems.

[0004] To achieve the above objectives, the technical solution provided by the present invention is as follows:

[0005] A refrigeration device includes an inner liner forming a storage space and a vacuum drawer disposed within the storage space. The vacuum drawer includes a drawer body and a cover covering the opening of the drawer body. The drawer body and the cover form a cavity for storage. The vacuum drawer further includes a vacuuming device disposed outside the cavity and communicating with the cavity, and a plastic sealing assembly located inside the cavity.

[0006] Furthermore, the drawer body includes an inner wall forming a cavity, and the plastic sealing assembly has at least a certain distance from the inner wall or the cover.

[0007] Furthermore, the molding assembly includes a fixing seat disposed in the cavity, a heating plate located on the fixing seat, and a pressure strip provided on the cover at a position corresponding to the heating plate, the thickness of the pressure strip being not less than the straight-line distance from the heating plate to the cover.

[0008] Furthermore, the fixing base has a fixing base body that supports the heating plate, and the fixing base body is provided with a groove for accommodating the heating plate, and the length of the pressure strip is not greater than the length of the groove.

[0009] Furthermore, the fixing base also includes side plates extending from the four end edges of the fixing base body on the same side, forming a cavity between the fixing base body and the side plates, and the fixing base body is provided with a through hole connecting the groove and the cavity; the heating plate includes a heating plate body located in the groove, a vertical plate bent downward from both ends of the heating plate body and passing through the through hole, and a connecting plate bent towards each other from the ends of the vertical plate, and the connecting plate is connected to the power system of the refrigeration equipment.

[0010] Furthermore, the fixing base also includes a support column that protrudes into the cavity from the surface of the fixing base body away from the groove and is used to fix the heating plate. The support column is located between the fixing base body and the connecting plate, and an insulating layer is provided on the outside of the support column.

[0011] Furthermore, the fixing seat is located at the front of the cavity and has a certain distance from the inner wall. The sealing assembly also includes a pressure bag tongue located at both ends of the fixing seat body, and the pressure bag tongue is located on the rear side of the groove.

[0012] Furthermore, the vacuum drawer also includes a hinge assembly located on the same side as the lid and the drawer body. The hinge assembly includes a hinge fixing seat and a hinge plate. The hinge plate includes an arc-shaped arm, a support arm connecting the arc-shaped arm and the lid, and a connecting arm connecting the other end of the arc-shaped arm and the hinge fixing seat. The hinge plate and the hinge fixing seat cooperate through a pivot connection part, which is located at the center of the arc-shaped arm.

[0013] Furthermore, the vacuum drawer also includes a pressure relief assembly connected to the vacuum device. The pressure relief assembly includes a vent pipe connected to the vacuum device, a movable structure for sealing the opening of the vent pipe away from the vacuum device, a handle located on the side of the movable structure, and a transmission structure configured to cooperate between the movable structure and the handle. The transmission structure is configured such that the handle can drive the movable structure to move closer to or away from the opening of the vent pipe through the transmission structure.

[0014] Furthermore, the refrigeration device also includes a guide rail located on the outside of the drawer body that can slide back and forth along the inner liner, and a wiring structure located below the guide rail. The wiring structure includes a cable for supplying power to the electrical components of the vacuum drawer, a cable chain for accommodating part of the cable, and a support frame fixed to the inner liner and capable of accommodating the cable chain. One end of the cable chain is fixed to the rear side of the inner liner, and the other end is fixed to the lower part of the drawer.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The refrigeration equipment of the present invention, by setting a vacuum device and a sealing component in the drawer, can achieve vacuum sealing of food at low temperature, thereby further extending the storage time of food and meeting the diverse storage needs of users. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a vacuum drawer in one embodiment of the refrigeration equipment of the present invention.

[0017] Figure 2 yes Figure 1 A three-dimensional structural diagram of the plastic sealing assembly inside the drawer in the embodiment.

[0018] Figure 3 yes Figure 2 Exploded view of each component of the encapsulated assembly.

[0019] Figure 4 yes Figure 2 A cross-sectional view of the encapsulated assembly along the AA direction.

[0020] Figure 5 yes Figure 1 A three-dimensional structural diagram showing the relative positions of the vacuum drawing device and pressure relief assembly inside the vacuum drawer in the embodiment.

[0021] Figure 6 yes Figure 1 A three-dimensional structural diagram of the vacuum pumping device and pressure relief assembly in the embodiment.

[0022] Figure 7 yes Figure 6 A three-dimensional structural diagram of the pressure relief assembly in the open pressure relief state.

[0023] Figure 8 yes Figure 6 A three-dimensional structural diagram of the pressure relief assembly in the off state.

[0024] Figure 9 yes Figure 6 The front view of the middle handle.

[0025] Figure 10 yes Figure 1 A three-dimensional structural diagram of the hinge assembly in the embodiment.

[0026] Figure 11 for Figure 10 The front view of the hinge assembly in use in the embodiment.

[0027] Figure 12 for Figure 1 A front view of the hinge mating seat in another embodiment of the hinge assembly.

[0028] Figure 13 yes Figure 12 A front view of the hinge plate and hinge mating seat in the embodiment. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0030] It should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the auxiliary diagram. They are used only to simplify the description of the present invention and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of the present invention. Specifically, in the present invention, the user's operating surface is considered the front, the direction facing the ground is considered lower, and conversely, the direction away from the ground is considered upper. Other descriptions of orientation are defined based on "upper" and "lower."

[0031] In the various illustrations of this invention, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structural parts; therefore, they are only used to illustrate the basic structure of the subject matter of this invention.

[0032] A refrigeration device includes an inner liner forming a storage space and a vacuum drawer 1 disposed within the storage space, such as... Figure 1 As shown, the vacuum drawer 1 includes a drawer body 10 and a cover 20 that covers the opening of the drawer body 10. The drawer body 10 and the cover 20 form a cavity 11 for storage. The vacuum drawer 1 also includes a vacuuming device 30 located outside the cavity 11 and communicating with the cavity 11, and a sealing assembly 60 located inside the cavity 11. By setting the sealing assembly 60 inside the vacuum drawer 1, food can be vacuum sealed at low temperatures, thereby extending the storage time of the food. Users can also take out the vacuum-sealed food and place it in other storage spaces, meeting the diverse storage needs of users.

[0033] The present invention does not limit the specific location of the vacuum drawer 1 in the refrigeration equipment. The vacuum drawer 1 can be set in the refrigeration space, freezing space, or variable temperature space of the refrigeration equipment, and can be selected according to the user's needs.

[0034] Specifically, the drawer body 10 includes an inner wall forming a cavity 11 and an outer wall outside the inner wall, forming an accommodating space (not shown) between the inner wall and the outer wall. The vacuum device 30 is located within the accommodating space and is not visible from the user's perspective, making the overall appearance of the vacuum drawer 1 simple and improving the convenience and safety of user operation.

[0035] In a preferred embodiment of the present invention, the vacuum drawer 1 further includes a control module 70, which includes a control unit (not shown) located in the accommodating space and an operation display panel 71 that is communicatively connected to the control unit. Specifically, the control unit is communicatively connected to the vacuuming device 30 and the sealing assembly 60, and is used to receive, process, and send signals to achieve precise control of the specific functions of the vacuum drawer 1.

[0036] Furthermore, the operation display panel 71 is located on the front side of the drawer body 10, that is, the operation display panel is the front wall forming the accommodating space. The operation display panel will display various parameters of the vacuum drawer, making it convenient for users to operate the drawer and improving the user experience.

[0037] Furthermore, the drawer body 10 also includes a connecting wall that connects the inner wall and the outer wall, and the cover 20 and the connecting wall cooperate to cover or seal the drawer body 10.

[0038] To further optimize the sealing of the vacuum drawer 1, the cover 20 is provided with a sealing ring 21 that cooperates with the connecting wall. The sealing ring 21 is closed around the connecting wall. Preferably, the cover 20 is made of a relatively heavy material, so that the weight of the cover 20 can be used to further enhance the cooperation between the cover 20 and the drawer body 10.

[0039] As a preferred embodiment of the present invention, such as Figure 5 As shown, the vacuum pumping device 30 includes a vacuum pump 31, a vacuum tube 32 connecting the vacuum pump 31 to the cavity 11, an exhaust pipe 33 connecting the vacuum pump 31 to the outside, and a pressure sensor 34 connecting the vacuum tube 32, so as to realize the vacuum pumping operation before the sealing operation.

[0040] In this embodiment, the vacuum pumping device 30 is located at the front of the accommodating space and is arranged adjacent to the control module 70. In order to optimize the connection method of each pipeline of the vacuum pump 31, the vacuum pumping device also includes a four-way connector 35 connecting the vacuum pump 31. The exhaust pipe 33 and the four-way connector 35 are arranged at intervals on the vacuum pump 31.

[0041] The pressure sensor 34 is communicatively connected to the control unit to transmit the pressure status inside the cavity 11 to the control unit, facilitating subsequent operations by the control unit.

[0042] As a preferred embodiment of the present invention, such as Figures 5 to 9As shown, the vacuum drawer 1 also includes a pressure relief assembly 40 connected to the vacuum pumping device 30. The pressure relief assembly 40 includes a vent pipe 41 connected to the vacuum pumping device 30, a movable structure 42 for sealing the opening of the vent pipe 41 away from the vacuum pumping device 30, a handle 43 located on the side of the movable structure 42, and a transmission structure 44 cooperating between the movable structure 42 and the handle 43. The transmission structure 44 is configured such that the handle 43 can drive the movable structure 42 to move closer to or away from the opening of the vent pipe 41. In this embodiment, the pressure relief assembly 40 is longitudinally located on the outside of the vacuum drawer 1. The vent pipe 41 is connected to the vacuum pump 31 via a four-way connector 35. In this embodiment, the pressure relief assembly 40, in cooperation with the vacuum pumping device 30, reduces the number of openings in the cavity 11 connected to the outside, which is beneficial for maintaining the vacuum level inside the vacuum drawer 1 during the sealing process.

[0043] Specifically, the transmission structure 44 includes a slider 441 disposed on the movable structure 42 and a groove 442 disposed on the side of the handle 43 near the movable structure 42. A through hole is provided on the outer wall 13 at a position corresponding to the slider 441. The slider 441 passes through the through hole and cooperates with the groove 442. A rotating shaft 433 is provided on the handle 43. The handle 43 is fixed to the outside of the outer wall through the rotating shaft 433. That is, when the handle 43 is rotated, the handle 43 guides the slider 441 through the groove 442, thereby driving the movable structure 42 to move along the length direction of the through hole.

[0044] Further, the handle 43 includes a handle base 431 and a handle 431. The pivot portion 433 is disposed on the handle base 431. The slide groove 442 is generally arc-shaped and located between the pivot portion 433 and the handle 431. The slide groove 442 has a first end 4421 near the handle 431 and a second end 4422 away from the first end 4421. The distance between the first end 4421 and the pivot portion 433 is greater than the distance between the second end 4422 and the pivot portion 433. When the pressure relief assembly 40 is in the open state, the slider 441 is located at the second end 4421. At this time, the slider 441 is located above the rotating shaft 433. When the pressure relief assembly 40 is in the closed state, the slide groove 442 rotates to the first end 4421 located above the rotating shaft 433. At this time, the slider 441 is located at the first end 4421. Due to the unequal distances from the first end 4421 and the second end 4422 to the rotating shaft 433, the slide groove 442 drives the slider 441 to move up and down relative to the rotating shaft 433, thereby driving the movable structure 42 to move up and down to achieve the switching between the sealed and open states of the vent pipe 41.

[0045] Furthermore, the pressure relief assembly 40 also includes a connector 45 located between the vent pipe 41 and the movable structure 42, for changing the opening direction of the vent pipe 41. In this embodiment, the connector 45 is L-shaped and connects the vent pipe 41 and the movable structure 42.

[0046] Furthermore, the pressure relief assembly 40 also includes a support plate 46 protruding from the outer wall into the receiving space for supporting the movable structure 42, and an elastic member 47 located between the movable structure 42 and the support plate 46. When the movable structure 42 approaches the connector 45, the elastic member 47 is in a compressed state, and the elastic force of the elastic member 47 provides an upward resisting force on the movable structure 42, thereby improving the fit between the movable structure 42 and the connector 45.

[0047] Furthermore, the movable structure 42 includes a sealing block 421 adjacent to the connector 45 and a movable block 422 that fixes the sealing block 421. That is, the slider 441 is located on the side of the movable block 422, and the end of the movable block 422 away from the connector 45 cooperates with the elastic member 47. Preferably, the sealing block 421 is made of rubber material to further strengthen the cooperation between the sealing block 421 and the connector 45.

[0048] As a preferred embodiment of the present invention, such as Figures 2 to 4 As shown, the sealing assembly 60 has a certain distance from the inner wall or the cover 20. That is, when the sealing assembly 60 is set close to the inner wall, there is a certain distance between the sealing assembly 60 and the cover 20, and when the sealing assembly 60 is set close to the cover 20, there is a certain distance between the sealing assembly 60 and the inner wall. This allows the sealing bag used to hold food to communicate with the cavity when the sealing function is used, which is conducive to the air being evacuated from the sealing bag.

[0049] In this embodiment, the plastic sealing component 60 is located at the front of the cavity 11 and is at a certain distance from the inner wall. When the plastic sealing function is not used, it does not affect the normal storage function of the vacuum drawer.

[0050] Specifically, the molding assembly 60 includes a fixing seat 61 disposed in the cavity 11 and a heating plate 62 located on the fixing seat 61. A pressure strip 22 is provided on the cover 20 at a position corresponding to the heating plate 62. During the molding operation, at least one of the fixing seat 61 and the pressure strip 22 moves closer to the other in a controlled manner.

[0051] In this embodiment, the fixing seat 61 and the control module are communicatively connected. When the vacuum inside the cavity 11 reaches the set requirement, the molding assembly 60 starts working. At this time, the control module controls the fixing seat 61 to move upward to the pressure strip 22. After the molding operation is completed, the control module controls the fixing seat 61 to reset. It can be understood that the movement of the fixing seat 61 is a fine adjustment for easy operation.

[0052] Furthermore, the heating plate 62 includes a heating plate body 621 for heating, vertical plates 622 bent downward from both ends of the heating plate body 621, and connecting plates 623 bent towards each other from the ends of the vertical plates 622. The connecting plates 623 are connected to the cables of the refrigeration equipment, so that the distance between the heating plate body 621 and the connecting plates 623 meets the electrical clearance requirements of the electrical appliances, thereby improving electrical safety.

[0053] Furthermore, the fixing base 61 has a fixing base body 611 that supports the heating plate 62. The fixing base body 611 is provided with a groove 612 for accommodating the heating plate 62. The heating plate body 621 is located in the groove 612. Placing the heating plate 62 in the groove 612 increases the safety of electrical use and reduces the amount of heat from the heating plate 62 conducted into the cavity 11.

[0054] Furthermore, the fixing base 61 also includes side plates 613 extending from the four end edges of the fixing base body 611 on the same side, forming a cavity (not shown) between the fixing base body 611 and the side plates 613. The fixing base body 611 is provided with connecting holes 614 that connect the groove 612 and the cavity. The vertical plate 622 passes through the connecting hole 614, and the connecting plate 623 and the vertical plate 622 are both located in the cavity. That is, the heating plate body 621, the vertical plate 622 and the connecting plate 623 are respectively located on both sides of the fixing base body 611, improving electrical safety.

[0055] In this embodiment, the fixing base 61 further includes a support column 616 that protrudes into the cavity from the surface of the fixing base body 611 away from the groove 612 and is used to fix the heating plate 62. The support column 616 is located between the fixing base body 611 and the connecting plate 623. On the one hand, it is used to fix the heating wire 62, and on the other hand, it can ensure that there is a certain distance between the connecting plate 623 and the heating plate body 621 to meet the electrical clearance distance of the electrical appliance. Preferably, the outside of the support column 616 is provided with an insulating layer to prevent short circuit and improve electrical safety.

[0056] Furthermore, the length of the pressure strip 22 is not greater than the length of the groove 612, and the thickness of the pressure strip 22 is not less than the straight-line distance from the heating plate 62 to the cover 20, so that during the sealing process, the pressure strip 22 can apply a downward pressure to the heating plate body 621 in the groove 612, thereby accelerating the completion of the sealing operation.

[0057] It is understandable that the groove 612 may not be provided on the main body 611 of the fixing seat. As long as the heating plate 62 is fixed to each other by the connecting plate 623 and the support column 616, it will not affect the heating plate from being powered on and heating up, thereby achieving the purpose of plastic sealing.

[0058] Furthermore, the sealing assembly 60 also includes a pressure tongue 63 disposed at both ends of the fixing body 611. Specifically, the pressure tongue 63 includes a connecting part 631 fixed on the fixing body 611 and a pressing part 631 extending from the end of the connecting part 631 toward the middle of the fixing body 611. The pressing part 631 is set higher than the heating plate 62, which effectively prevents the sealing bag from shifting position during the vacuuming process and achieves precise sealing.

[0059] It is understood that the pressure tongue 63 can be positioned on both the front and rear sides of the groove 612 to locate the plastic seal bag. In this embodiment, the pressure tongue 63 is located on the rear side of the groove 612, so that the plastic seal bag under the pressure tongue 63 is a certain distance away from the bag opening, which does not affect the vacuuming from the opening of the plastic seal bag, and also makes the heating and sealing position on the plastic seal bag far away from the opening of the plastic seal bag, so as to achieve precise sealing of the plastic seal bag.

[0060] As a preferred embodiment of the present invention, such as Figures 9 to 13 As shown, the vacuum drawer 1 also includes a hinge assembly 50 located on the same side of the lid 20 and the drawer body 10. The hinge assembly 50 includes a hinge fixing seat 51 and a hinge plate 52. The hinge plate 52 includes an arc-shaped arm 521, a support arm 523 connecting the arc-shaped arm 521 and the lid, and a connecting arm 522 connecting the other end of the arc-shaped arm 521 and the hinge fixing seat 51. The hinge plate 52 and the hinge fixing seat 51 are engaged by a pivot connection part 53. The pivot connection part 53 is located at the center of the arc-shaped arm 521, which makes the hinge assembly 50 occupy less space, making the overall vacuum drawer 1 simpler and more aesthetically pleasing. Moreover, in this embodiment, the hinge plate 52 is integrally formed, which strengthens the structural strength of the hinge plate 52.

[0061] The hinge fixing seat 51 includes a fixing plate 511 arranged parallel to the plane of the arc arm 521 and a limiting plate 512 connected to one end of the fixing plate 511. The limiting plate 512 is provided with an opening 514 for the hinge plate 52 to pass through. The hinge fixing seat 51 is used to fix the hinge plate 52 and realize the hinge plate 52 to rotate with the cover 20 on the plane of the fixing plate 511.

[0062] The limiting plate 512 is located in the limiting groove 524 at the connection between the connecting arm 522 and the arc arm 521. The connecting arm 522 is attached to the lower part of the limiting plate 512. The limiting plate 512 is used to limit the maximum opening angle of the hinge plate 52. At this time, the support arm 523 is in a horizontal state that is conducive to supporting the cover 20.

[0063] Furthermore, the hinge fixing base 51 also includes a left side plate 513 for connecting the limiting plate 512 and the fixing plate 511. The left side plate 513 is disposed adjacent to the opening 514, and a limiting part 5121 is provided on the inner sidewall of the left side plate 513. The limiting part 5121 is used to cooperate with the limiting block 5211 on the arc-shaped arm 521 to ensure that the hinge plate 52 can be stopped in the required position. Preferably, the limiting part 5121 is made of an elastic material, which facilitates deformation when pressed with the limiting block 5211 on the arc-shaped arm 521, thereby allowing the hinge plate 52 to freely switch between the initial state and the use state.

[0064] The connection between the arc-shaped arm 521 and the connecting arm 522 and the support arm 523 are located on both sides of the pivot connection 53. The lengths of the support arm 523 and the arc-shaped arm 521 are greater than the length of the connecting arm 522, so that the center of gravity of the hinge plate 52 shifts downward when the hinge plate 52 is fully open. At this time, the connecting arm 522 does not extend out of the hinge fixing seat 51, and the limiting plate 512 is located in the limiting groove 524 at the connection between the arc-shaped arm 521 and the connecting arm 522 to limit the maximum opening angle of the hinge plate 52, so as to realize the limiting of the hinge plate 52 on the cover 20 in the upright state and increase the stability of the fit between the hinge plate 52 and the cover 20.

[0065] The pivot connection 53 includes a pivot 531 disposed on the hinge fixing seat and a shaft hole 532 disposed at the free end of the connecting arm 522. The pivot 531 is located at the center of the arc-shaped arm 521. It can be understood that the pivot 531 can also be disposed at the free end of the connecting arm 522, and the shaft hole 532 can be disposed on the fixing plate 51, both of which can achieve the purpose of the hinge plate 52 rotating relative to the fixing plate 511.

[0066] In a preferred embodiment of the present invention, the hinge assembly 50 further includes a hinge mating seat 55 that cooperates with the hinge fixing seat 51. The hinge fixing seat 51 and the hinge mating seat 55 form a receiving space (not shown) for receiving the hinge plate 52. Specifically, the hinge mating seat 55 includes a mating plate 551 parallel to the plane of the fixing plate 511, a right side plate 555 for connecting the fixing plate 511 and the limiting plate 512 respectively, and a bottom plate 556, so that the hinge plate 52 is located in the receiving space. The hinge assembly 50 forms a complete structure, improving the applicability of the hinge assembly 50.

[0067] Furthermore, the mating plate 551 is provided with a mating part 553 that protrudes from the mating plate 551 into the receiving space and is mated and limited with the pivot connection part 53. In this embodiment, the mating part 553 is provided with a mating groove that opens toward the rotating shaft 531. In the assembled state of the hinge assembly 50, the connecting arm 522 is sleeved on the rotating shaft 531, and the end of the rotating shaft 531 away from the fixed plate 511 is inserted into the mating groove to realize the rotation of the hinge plate 52 within the receiving space.

[0068] Of course, when the pivot shaft 531 of the pivot connection 53 is mounted on the connecting arm 522, the mating part 553 is a mating groove (not shown) that can accommodate the end of the pivot shaft 531 away from the fixed plate 511. Both can enable the hinge plate 52 to rotate between the fixed plate 511 and the mating plate 551, and both are within the protection scope of the present invention.

[0069] Furthermore, the hinge mating seat 55 also includes an extension plate 554 that protrudes from the mating plate 551 into the receiving space and mates with the hinge plate 52. The shape of the extension plate 554 is consistent with the shape of the hinge plate 52, which is used to limit the space of the hinge plate 52 in the thickness direction within the receiving space, thereby effectively preventing the hinge plate 52 from shifting its position in the thickness direction.

[0070] Furthermore, the right side plate 555 includes a vertical portion 5551 provided with adjacent mating portions 553 and an inclined portion 5552 below the vertical portion 5551. In the initial state, the connecting arm 522 rests on the inclined portion 5552, that is, the inclined portion 5552 is used to support the connecting arm 522 to balance the gravity on the hinge plate 52. When the hinge plate 52 switches from the initial state to the working state, the force used to lift the cover 20 can be effectively reduced, and the overall stability of the hinge assembly 50 can also be ensured.

[0071] The base plate 556 is located at the lower end of the inclined part 5552 and is generally arc-shaped. When the hinge plate 52 is in the initial state, it is located below the arc-shaped arm 521 and plays a supporting and guiding role in the movement of the arc-shaped arm 521.

[0072] In a preferred embodiment of the present invention, the refrigeration device further includes a guide rail 3 located outside the drawer body 10 and slidable back and forth along the inner liner, and a wiring structure 8 located below the guide rail 3. The wiring structure 8 includes a cable 81 for supplying power to the electrical components of the vacuum drawer 1, a cable chain 82 for housing part of the cable 81, and a support frame 83 fixed to the inner liner and for housing the cable chain 82. One end of the cable chain 82 is fixed to the rear side of the inner liner, and the other end is fixed to the lower part of the vacuum drawer 1. The wiring structure 8 effectively protects the cable 81 during the back and forth movement of the vacuum drawer 1. In this embodiment, the cable 81 extends along the support frame 83 into the receiving space to supply power to the control module and the heating plate 62.

[0073] In this embodiment, the track 3 is preferably a push-spring track. On the one hand, the push-spring track has a better support effect, which is suitable for the relatively heavy vacuum drawer 1. On the other hand, the push-spring track has a large range of movement, which allows the vacuum drawer 1 to be completely moved to the outside of the refrigeration chamber, making it convenient to operate the vacuum drawer 1.

[0074] In summary, the refrigeration device of the present invention, by setting a sealing component 60 in the vacuum drawer 1, enables vacuum sealing of food at low temperatures, thereby extending the storage time of food. Users can also choose to take out the vacuum-sealed food and place it in other storage spaces to meet the diverse storage needs of users.

[0075] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0076] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A refrigeration device, comprising an inner liner forming a storage space and a vacuum drawer disposed within the storage space, the vacuum drawer comprising a drawer body and a cover covering the opening of the drawer body, the drawer body and the cover forming a cavity for storage, characterized in that: The vacuum drawer also includes a vacuum pumping device located on the outside of the cavity and communicating with the cavity, and a plastic sealing assembly located inside the cavity. The vacuum drawer also includes a hinge assembly, specifically including a hinge base, a hinge plate, and a pivot connection between the hinge base and the hinge plate; The hinge plate includes an arc-shaped arm, a support arm and a connecting arm that are respectively connected to both ends of the arc-shaped arm. The free end of the connecting arm is rotatably connected to the hinge fixing seat through the pivot connection part, which is located at the center of the arc-shaped arm. The pivot connection includes a pivot shaft provided on the hinge fixing seat and a shaft hole provided at the free end of the connecting arm that mates with the pivot shaft. The shaft hole is located at the center of the arc-shaped arm. The hinge plate has an initial state in which at least the arc arm and the hinge fixing seat are stacked, and a used state in which the arc arm extends out of the hinge fixing seat. In the initial state, the support arm and the connection points of the arc arm and the connecting arm are respectively located on both sides of the center of the arc arm. The lengths of the arc-shaped arm and the support arm are greater than the length of the connecting arm, causing the center of gravity of the hinge plate to shift downwards when the hinge plate is fully open.

2. The refrigeration equipment as described in claim 1, characterized in that: The drawer body includes an inner wall forming a cavity, and the plastic sealing assembly has a certain distance between itself and the inner wall or the cover.

3. The refrigeration equipment as described in claim 1, characterized in that: The molding assembly includes a fixing seat disposed in the cavity, a heating plate located on the fixing seat, and a pressure strip provided on the cover at a position corresponding to the heating plate. The thickness of the pressure strip is not less than the straight-line distance from the heating plate to the cover.

4. The refrigeration equipment as described in claim 3, characterized in that: The fixing base has a fixing base body that supports the heating plate, and the fixing base body is provided with a groove to accommodate the heating plate. The length of the pressure strip is not greater than the length of the groove.

5. The refrigeration equipment as described in claim 4, characterized in that: The fixing base also includes side plates extending from the four end edges of the fixing base body on the same side, forming a cavity between the fixing base body and the side plates, and the fixing base body is provided with a through hole connecting the groove and the cavity; the heating plate includes a heating plate body located in the groove, a vertical plate bent downward from both ends of the heating plate body and passing through the through hole, and a connecting plate bent towards each other from the ends of the vertical plate, and the connecting plate is connected to the power system of the refrigeration equipment.

6. The refrigeration equipment as described in claim 5, characterized in that: The fixing base also includes a support column that protrudes into the cavity from the surface of the fixing base body away from the groove and is used to fix the heating plate. The support column is located between the fixing base body and the connecting plate, and an insulating layer is provided on the outside of the support column.

7. The refrigeration equipment as described in claim 4, characterized in that: The fixing seat is located at the front of the cavity and at a certain distance from the inner wall. The sealing assembly also includes a pressure bag tongue at both ends of the fixing seat body, and the pressure bag tongue is located on the rear side of the groove.

8. The refrigeration equipment according to any one of claims 1 to 7, characterized in that: The vacuum drawer also includes a pressure relief assembly connected to the vacuum device. The pressure relief assembly includes a vent pipe connected to the vacuum device, a movable structure for sealing the opening of the vent pipe away from the vacuum device, a handle located on the side of the movable structure, and a transmission structure configured to cooperate between the movable structure and the handle. The transmission structure is configured such that the handle can drive the movable structure to move closer to or away from the opening of the vent pipe through the transmission structure.

9. The refrigeration equipment according to any one of claims 1 to 7, characterized in that: It also includes a guide rail located on the outside of the drawer body that can slide back and forth along the inner liner, and a wiring structure located below the guide rail. The wiring structure includes a cable for powering the electrical components of the vacuum drawer, a cable chain for housing part of the cable, and a support frame fixed to the inner liner and capable of housing the cable chain. One end of the cable chain is fixed to the rear side of the inner liner, and the other end is fixed to the lower part of the drawer.

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