refrigerator

Abstract

The present invention provides a refrigerator, comprising a box body, a vacuum box, a vacuum assembly, a locking assembly, and a degassing block; the vacuum box comprises a box body with an opening on the front side, and a door body that can be opened and closed to cover the opening of the box body; the locking assembly comprises a locking plate rotatably connected to the box body, a buckle plate fixed to the door body, and a driving unit for driving the locking plate to rotate; the locking plate rotates around its own axis so that the locking plate can switch between a locked position and an unlocked position. When the locking plate moves from the locked position to the unlocked position, the locking plate drives the degassing block forward to press against the corresponding corner of the door body, so that the door body is separated from the box body in the corner area, thereby balancing the air pressure inside and outside the box body, and automatically degassing, effectively avoiding damage to the vacuum box and improving the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of refrigeration, and in particular to a refrigerator. Background Art

[0002] Vacuum preservation technology is currently widely used in food packaging. By extracting air from sealed packaging bags / containers, creating a near-vacuum state, this effectively inhibits microbial spoilage and nutrient loss, thereby extending the shelf life of food. Among existing refrigerator preservation technologies, the use of vacuum drawers is the most effective way to implement this technology. A vacuum drawer operates by attaching a vacuum device to a sealed drawer. This device draws air from within the drawer, creating a low-pressure vacuum. This effectively inhibits microbial spoilage and nutrient loss, thereby extending the shelf life of food.

[0003] In the related art, when a vacuum drawer is opened, the pressure difference between the inside and outside is large. Due to the effect of negative pressure, it is difficult for users to open the drawer, and using too much force can easily cause damage to the drawer. Summary of the Invention

[0004] An object of the present invention is to provide a refrigerator with a vacuum box, which can automatically deflate and improve user experience.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] According to one aspect of the present invention, there is provided a refrigerator, comprising a box body, a vacuum box, a vacuuming assembly, a locking assembly and an air release block; the vacuum box is arranged in the box body; the vacuum box comprises a box body with an opening on the front side, and a door body that can be opened and closed to cover the opening of the box body; the vacuum box is connected to the internal space of the vacuum box for vacuuming the vacuum box; the locking assembly comprises a locking plate rotatably connected to the box body, a buckle plate fixed to the door body, and a driving unit for driving the locking plate to rotate; the buckle plate corresponds to The locking plate is provided and extends toward the box body to the peripheral side of the box body; the locking plate rotates around its own axis so that the locking plate can switch between a locked position engaged with the buckle plate and an unlocked position separated from the buckle plate; the air release block is slidably provided on the outer periphery of the box body; the air release block corresponds to a corner of the door body; when the locking plate moves from the locked position to the unlocked position, the locking plate drives the air release block forward to press against the corresponding corner of the door body, so that the door body is separated from the box body in the corner area.

[0007] In some embodiments of the present application, a notch is provided on the locking plate, and an abutment surface is formed on the inner wall of the notch; when the locking plate is in the locking position, the abutment surface abuts against the rear end of the air release block.

[0008] In some embodiments of the present application, an elastic member is provided between the air release block and the box body to drive the air release block to move backward; when the locking plate moves a preset displacement from the locking position to the unlocking position, the locking plate and the air release block are separated.

[0009] In some embodiments of the present application, in the direction from back to front, the elastic member is tilted toward the box body, so that the deflating block can slide in the front-to-back direction and can move in the direction close to and away from the box body.

[0010] In some embodiments of the present application, a guide slope is provided on a side of the locking plate facing the box body corresponding to the air release block; the guide slope is inclined toward the box body in the direction from back to front; in the process of the locking plate moving from the unlocking position to the locking position, the guide slope abuts against the side of the air release block facing away from the box body, and the guide slope slides on the side of the air release block facing away from the box body, and pushes the air release block to move closer to the box body.

[0011] In some embodiments of the present application, a transition slope is formed on a side of the air-deflating block facing away from the box body; the transition slope is tilted close to the box body in the direction from back to front; the transition slope passes through an edge of the air-deflating block close to the rotation axis of the locking plate, so as to be connected to the guide slope.

[0012] In some embodiments of the present application, a guide rib is protruded from the outer side of the box body corresponding to the air release block, and the guide rib extends in the front-to-back direction. The air release block abuts against the guide rib on the circumference of the box body and on a side away from the center of the locking plate, so that the air release block can slide back and forth along the guide rib.

[0013] In some embodiments of the present application, a protruding limiting rib is provided on the box body corresponding to the guide rib, and the limiting rib abuts against a front end of the air release block facing the box body.

[0014] In some embodiments of the present application, the elastic member is a compression spring, and the elastic member is tilted toward the box body in a direction from back to front.

[0015] In some embodiments of the present application, a protruding mounting post is provided on one side of the air release block facing the box body; the mounting post is inclined toward the box body from the back to the front, one end of the elastic member is passed through the mounting post, and the other end abuts against the box body.

[0016] It can be seen from the above technical solutions that the present invention has at least the following advantages and positive effects:

[0017] In the present invention, when the locking plate is in the unlocked position, the locking plate and the pinch plate can be separated, thereby enabling the door to be opened or closed to take items into or out of the vacuum box. When the door is closed on the box body and the locking plate is in the locked position, the locking plate engages with the pinch plate, blocking the movement of the door relative to the box body, thereby ensuring the sealing of the door on the box body, effectively preventing air leakage in the vacuum box, and effectively ensuring the storage of food.

[0018] When the locking plate moves from the locked position to the unlocked position, it drives the air release block forward against the corresponding corner of the door, separating the door from the box body at the corner. This balances the air pressure inside and outside the box body, allowing for automatic air release. This effectively prevents damage to the vacuum box and improves the user experience. This eliminates the need for a separate air release mechanism, reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a refrigerator embodiment of the present invention.

[0020] Figure 2 It is a partial structural diagram of an embodiment of a refrigerator of the present invention, wherein the cabinet is not shown.

[0021] Figure 3 It is a structural schematic diagram of a vacuum box of a refrigerator embodiment of the present invention.

[0022] Figure 4 It is a structural schematic diagram of a box body of a refrigerator embodiment of the present invention.

[0023] Figure 5 It is a structural schematic diagram of the door body of a refrigerator embodiment of the present invention.

[0024] Figure 6 It is a structural schematic diagram of the locking assembly on the box body of the refrigerator embodiment of the present invention.

[0025] Figure 7 It is a structural schematic diagram of the locking assembly of the refrigerator embodiment of the present invention.

[0026] Figure 8 It is a partial structural diagram of the locking assembly of the refrigerator embodiment.

[0027] Figure 9 It is a structural schematic diagram of the gusset plate of a refrigerator embodiment of the present invention.

[0028] Figure 10 It is a structural schematic diagram of the locking plate of a refrigerator embodiment of the present invention.

[0029] Figure 11It is a structural schematic diagram of some sensor components on the box body of the refrigerator embodiment of the present invention.

[0030] Figure 12 It is a structural schematic diagram of a detection unit of a refrigerator embodiment of the present invention.

[0031] Figure 13 It is a structural schematic diagram of the air release block of a refrigerator embodiment of the present invention.

[0032] Figure 14 It is a schematic diagram of the cooperation between the air release block and the locking plate of the refrigerator embodiment of the present invention.

[0033] Figure 15 yes Figure 14 Schematic diagram of another perspective of the structure shown in.

[0034] The reference numerals are as follows: 100, box body; 200, vacuum box; 210, box body; 211, rotating shaft; 212, guide rib; 213, limiting rib; 214, positioning groove; 220, door body; 221, sealing gasket; 300, vacuum assembly;

[0035] 400, air release block; 410, transition slope; 420, mounting column; 450, elastic member;

[0036] 500, locking assembly; 510, locking plate; 511, slot; 512, abutment surface; 513, guide slope; 520, buckle plate; 521, clamping column; 522, abutment portion; 530, motor; 540, screw rod;

[0037] 610, detection unit; 611, second micro switch; 612, abutting protrusion; 613, mounting plate; 620, monitoring unit. DETAILED DESCRIPTION

[0038] Typical embodiments embodying the features and advantages of the present invention are described in detail in the following description. It should be understood that the present invention is capable of various variations in different embodiments without departing from the scope of the present invention, and that the descriptions and illustrations herein are intended to be illustrative rather than limiting.

[0039] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0040] For ease of description and understanding, the state of the refrigerator when it is placed upright for use is used as a reference, the direction facing the user is the front, and the direction facing away from the user is the rear.

[0041] Figure 1 It is a structural schematic diagram of a refrigerator embodiment of the present invention.

[0042] See Figure 1 This embodiment provides a refrigerator for storing items at low temperatures. The refrigerator includes a housing 100, a door (not shown) rotatably mounted on the housing 100, a vacuum box 200 disposed within the housing 100, and a refrigeration assembly disposed within the housing 100.

[0043] The box 100 is formed with a refrigeration compartment with an opening at the front side, and items are placed in the refrigeration compartment for low-temperature storage. Refrigeration compartments generally include a refrigerator compartment and a freezer compartment. The specific structure of the box 100 is similar to that of boxes in the related art and will not be repeated here.

[0044] In this embodiment, the door is rotatably mounted on the housing 100 to open or close the refrigeration compartment of the housing 100 and to place and retrieve items from the refrigeration compartment. In some embodiments, the door is a drawer-type door that is slidably mounted on the front side of the housing 100.

[0045] The refrigeration assembly releases heat from the refrigerator to the outside environment, providing cooling to the refrigeration compartment and maintaining a low temperature. The refrigeration assembly includes components such as the compressor, condenser, evaporator, and capillary circuit. The specific structure and connection relationships of the refrigeration assembly are similar to those described in related art and will not be further described here.

[0046] Figure 2It is a partial structural diagram of an embodiment of a refrigerator of the present invention, wherein the cabinet is not shown. Figure 3 Schematic diagram of the structure of the vacuum box 200 of the refrigerator embodiment of the present invention. Figure 4 2 is a schematic structural diagram of a box body 210 of a refrigerator embodiment of the present invention.

[0047] See Figures 1 to 4 The vacuum box 200 is disposed within the container 100 and is used to preserve food in a vacuum. In some embodiments, the vacuum box 200 is disposed on the side of the container door facing the container 100. The vacuum box 200 includes a container body 210 with an opening at the front, and a door 220 that can be opened and closed to cover the opening of the container body 210. The door 220 is used to close or open the container body 210, allowing items to be placed in and stored in the vacuum box 200.

[0048] The box body 210 is housed in the refrigeration compartment of the cabinet 100. The box body 210 forms a hollow chamber with an open front side, so as to form an internal space in the box body 210.

[0049] A rotation shaft 211 is protruded from the outer peripheral wall of the box body 210. In this embodiment, the rotation shaft 211 is disposed on the left and right outer sides of the box body 210. In some embodiments, the rotation shaft 211 is disposed on the upper and lower outer sides of the box body 210.

[0050] In this embodiment, two rotating shafts 211 are arranged at intervals, and the two rotating shafts 211 are arranged at intervals along the up-down direction.

[0051] The outer surface of the box body 210 is provided with a guide rib 212. The guide rib 212 extends in the front-to-back direction and is provided corresponding to a corner of the box body 210. In this embodiment, the guide rib 212 is provided on the left and right outer surfaces of the box body 210, corresponding to the corner below the left and right outer surfaces of the box body 210. In some embodiments, the guide rib 212 is provided on the upper and lower outer surfaces of the box body 210.

[0052] The box body 210 is provided with a protruding limiting rib 213 corresponding to the guide rib 212. The limiting rib 213 is located on one side of the guide rib 212 facing the middle of the box body 210. In this embodiment, the guide rib 212 is provided at the lower portion of the left and right outer sides of the box body 210, and the limiting rib 213 is located above and adjacent to the guide rib 212.

[0053] In this embodiment, a positioning groove 214 is formed on the box body 210 in an area close to the guide rib 212 and the limiting rib 213 .

[0054] Figure 5 2 is a schematic structural diagram of a refrigerator door 220 according to an embodiment of the present invention.

[0055] See Figures 2 to 5The door 220 is a drawer-type structure, wherein the drawer portion is used to place items and is placed in the box body 210. The door 220 is slidably disposed on the box body 210. In some embodiments, the door 220 is a plate-like structure, and the door 220 can be detachably covered on the box body 210, or the door 220 can be rotatably covered on the box body 210.

[0056] A flexible sealing gasket 221 is provided on the side of the door body 220 facing the box body 210. The sealing gasket 221 is an annular structure. When the door body 220 is covered on the box body 210, the sealing gasket 221 is attached to and sealed on the front side of the box body 210.

[0057] In this embodiment, a vacuum assembly 300 is provided on the outer periphery of the box body 210. The vacuum assembly 300 communicates with the interior space of the vacuum box 200 for evacuating the vacuum box 200. Specifically, the vacuum assembly 300 communicates with the interior space of the box body 210 via a pipe. When the door 220 is closed on the box body 210, the vacuum assembly 300 evacuates the vacuum box 200, thereby forming a vacuum environment within the vacuum box 200 for vacuum storage of items.

[0058] Figure 6 Schematic diagram of the structure of the locking assembly 500 on the box body 210 of the refrigerator embodiment of the present invention. Figure 7 Schematic diagram of the structure of the locking assembly 500 of the refrigerator embodiment of the present invention. Figure 8 It is a partial structural diagram of the locking assembly 500 of the refrigerator embodiment.

[0059] See Figures 2 to 8 In this embodiment, the vacuum box 200 is provided with a locking assembly 500. The locking assembly 500 can lock the relative movement between the box body 210 and the door body 220, thereby locking the door body 220 on the box body 210, thereby effectively ensuring the sealing of the vacuum box 200. The locking assembly 500 is provided on the upper and lower sides or the left and right sides of the box body 210.

[0060] The locking assembly 500 includes a locking plate 510 rotatably connected to the housing 210, a pinch plate 520 fixed to the door body 220, and a drive unit for driving the locking plate 510 to rotate. The pinch plate 520 is arranged corresponding to the locking plate 510 and extends toward the housing 210 to the side of the housing 210. The locking plate 510 rotates about its own axis to switch between a locked position and an unlocked position. The locking plate 510 is mounted on the outer periphery of the rotating shaft 211 to enable the locking plate 510 to rotate relative to the housing 210.

[0061] When the door body 220 is covered on the box body 210, in the locked position, the locking plate 510 is engaged with the buckle plate 520 to lock the movement of the door body 220 relative to the box body 210; in the unlocked position, the locking plate 510 and the buckle plate 520 are separated, so that the door body 220 can be opened.

[0062] Figure 9 Schematic diagram of the structure of the gusset plate 520 of the refrigerator embodiment of the present invention.

[0063] See Figures 2 to 9 The pinch plate 520 is disposed corresponding to the locking plate 510 and extends toward the housing 210. In this embodiment, the door 220 is disposed on the front side of the housing 210. The pinch plate 520 extends rearward from the door 220. A latching post 521 protrudes from the side of the pinch plate 520 facing away from the housing 210, forming a snap-fit ​​position on the pinch plate 520. In some embodiments, the latching post 521 protrudes from the side of the pinch plate 520 facing the housing 210.

[0064] In this embodiment, the gusset plates 520 are disposed corresponding to the left and right outer sides of the box body 210, and the latches 521 extend in the left-right direction toward the corresponding left and right sides of the box body 210. In some embodiments, the gusset plates 520 are disposed corresponding to the upper and lower outer sides of the box body 210, and the latches 521 extend in the upper and lower directions toward the corresponding upper and lower sides of the box body 210.

[0065] In some embodiments, a buckle plate 520 is formed with a buckle groove, which serves as a buckle position.

[0066] In this embodiment, the gusset plates 520 are provided on the left and right sides of the box body 210, and two gusset plates 520 are provided at intervals along the vertical direction. In some embodiments, the gusset plates 520 are provided on the upper and lower sides of the box body 210, and two gusset plates 520 are provided at intervals along the horizontal direction.

[0067] Figure 10 Schematic diagram of the structure of the locking plate 510 of the refrigerator embodiment of the present invention.

[0068] See Figures 6 to 10 The locking plate 510 is rotatably disposed on the outer periphery of the box body 210. The locking plate 510 and the pinch plate 520 are spaced apart in a direction away from the box body 210. In this embodiment, the pinch plate 520 is located on the side of the locking plate 510 facing the box body 210. In other embodiments, the pinch plate 520 is located on the side of the locking plate 510 facing away from the box body 210.

[0069] The locking plate 510 is provided with a slot 511, forming a locking position. The locking plate 510 is a plate-like structure with an opening formed along its periphery to form the slot 511. The slot 511 extends through two opposing sides of the locking plate 510. The locking post 521 on the buckle plate 520 can extend into and engage with the slot 511.

[0070] In this embodiment, the locking plate 510 rotates about its own axis to switch between a locked position and an unlocked position. When the door 220 covers the box body 210, in the locked position, the locked position and the snap-fit ​​position cooperate to lock the movement of the door 220 relative to the box body 210, thereby ensuring the seal of the door 220 on the box body 210. When the door 220 covers the box body 210, in the unlocked position, the locked position and the snap-fit ​​position separate, and the locking plate 510 releases the lock on the snap-fit ​​plate 520, thereby allowing the door 220 to move relative to the box body 210 and thus opening the door 220.

[0071] When the locking plate 510 is in the unlocked position, the locking plate 510 and the buckle plate 520 can be separated, thereby allowing the door 220 to be opened or closed to take items into or out of the vacuum box 200. When the door 220 covers the box body 210 and the locking plate 510 is in the locked position, the locked position and the buckled position cooperate to lock the movement of the door 220 relative to the box body 210, thereby ensuring the seal of the door 220 on the box body 210, effectively preventing air leakage in the vacuum box 200 and effectively ensuring the storage of food.

[0072] In this embodiment, the locking position is a slot 511 on the locking plate 510, and the engaging position is a post 521 on the pinch plate 520. The locking plate 510 rotates to allow the locking plate 510 and the pinch plate 520 to mate. In some embodiments, the locking position is a corresponding post 521, and the pinch plate 520 is a corresponding slot 511. When the locking plate 510 rotates, the post 521 extends into and is retained within the slot 511, thereby limiting the movement of the pinch plate 520.

[0073] In this embodiment, the extending direction of the slot 511 is tangential to a radial direction of the locking plate 510. When the post 521 extends into the slot 511, the locking plate 510 rotates, driving the slot 511 to move. The movement of the slot 511 drives the post 521 to move backward, thereby locking the door body 220 and the box body 210. The slot 511 gradually decreases in diameter as it approaches the rotation axis of the locking plate 510, so that the slot 511 can more stably limit the post 521, ensuring a more stable locking of the door body 220.

[0074] The drive unit includes a motor 530 and a screw 540 that is transmission-connected to the motor 530. The screw 540 is transmission-connected to the outer periphery of the locking plate 510 to drive the locking plate 510 to rotate. The outer periphery of the locking plate 510 is provided with inclined teeth; the screw 540 meshes with the teeth on the locking plate 510.

[0075] The locking plates 510 are arranged in pairs corresponding to the gusset plates 520; the two locking plates 510 are arranged at intervals up and down, and the two locking plates 510 are respectively engaged with the screw rod 540. The cooperation between the two locking plates 510 and the two gusset plates 520 makes the locking of the locking assembly 500 more stable.

[0076] In this embodiment, the teeth on the outer periphery of the two locking plates 510 are inclined in opposite directions, so that the screw rod 540 drives the two locking plates 510 to rotate toward or away from each other. When the screw rod 540 rotates, the two locking plates 510 rotate in opposite directions.

[0077] The screw rod 540 extends vertically; the two buckle plates 520 and the two locking plates 510 are vertically spaced apart.

[0078] In some embodiments, the driving unit does not include the screw rod 540 , and the output shaft of the motor 530 is fixedly connected to the locking plate 510 .

[0079] It should be noted that two locking plates 510 are provided, one of which is provided with a notch, and an abutting surface 512 is formed on the inner wall of the notch. In this embodiment, the notch is formed at the slot 511, and the side of the slot 511 facing the door body 220 forms the abutting surface 512. The notch and the slot 511 are formed at the same position, which reduces the processing steps and can ensure the structural strength of the locking plate 510. In some embodiments, a notch is separately provided on the locking plate 510 that passes through two opposite sides. In other embodiments, both locking plates 510 are provided with a notch and a corresponding abutting surface 512.

[0080] A guide slope 513 is provided on one side of the locking plate 510 facing the box body 210 ; the guide slope 513 is tilted toward the box body 210 in a direction from back to front.

[0081] Figure 11 Schematic diagram of the structure of some sensor components on the box body 210 of the refrigerator embodiment of the present invention. Figure 12 Schematic diagram of the structure of the detection unit 610 of the refrigerator embodiment of the present invention.

[0082] See Figures 2 to 12 The refrigerator also includes a sensor assembly for detecting the opening and closing status of the door body 220 and the position of the locking plate 510; the vacuum assembly 300 and the sensor assembly are electrically connected to the drive unit, thereby controlling the automatic rotation of the locking plate 510 through the drive unit so that the locking plate 510 is engaged or separated relative to the buckle plate 520.

[0083] The sensor assembly includes a detection unit 610 provided on the box body 210 for detecting the position of the locking plate 510 and a monitoring unit 620 for monitoring the opening and closing state of the door body 220. When the locking plate 510 rotates to the locked position or the unlocked position, the detection unit 610 transmits a signal to the driving unit.

[0084] The monitoring unit 620 is a first micro switch fixed on the outer periphery of the box body 210 ; when the door body 220 is closed on the box body 210 , the pinch plate 520 is pressed onto the first micro switch.

[0085] In this embodiment, an abutting portion 522 is protruded from the pinch plate 520 ; when the door 220 is closed on the box body 210 , the abutting portion 522 is pressed onto the first micro switch.

[0086] The detection unit 610 includes a plurality of second microswitches 611 fixed to the outer periphery of the housing 210, and a plurality of abutting protrusions 612 provided on the locking plate 510 facing the housing 210. When the locking plate 510 is rotated to the locked or unlocked position, the abutting protrusions 612 abut against corresponding second microswitches 611. In this embodiment, the abutting protrusions 612 are provided on one locking plate 510.

[0087] In this embodiment, the detection unit 610 is further fixed to a mounting plate 613 on the outer periphery of the housing 210. Two second micro switches 611 are provided, and the two second micro switches 611 are disposed on opposite sides of the mounting plate 613. Two corresponding abutting protrusions 612 are provided. The two abutting protrusions 612 are spaced apart so that when the locking plate 510 rotates to a corresponding position, the abutting protrusions 612 abut against the corresponding second micro switches 611. In some embodiments, the detection unit 610 is a corresponding light sensor.

[0088] The refrigerator further includes a controller and a door sensor for acquiring information on door opening and closing. The door sensor, the sensor assembly, and the drive unit are all electrically connected to the controller.

[0089] Figure 13 Schematic diagram of the structure of the air release block 400 of the refrigerator embodiment of the present invention. Figure 14 Schematic diagram of the cooperation between the air release block 400 and the locking plate 510 of the refrigerator embodiment of the present invention. Figure 15 yes Figure 14 Schematic diagram of another perspective of the structure shown in.

[0090] See Figures 2 to 15, a degassing block 400 is also provided on the box body 210. The degassing block 400 is slidably provided on the outer periphery of the box body 210; the degassing block 400 corresponds to a corner of the door body 220. When the locking plate 510 moves from the locked position to the unlocked position, the locking plate 510 drives the degassing block forward to press against the corresponding corner of the door body 220, so that the door body 220 is separated from the box body 210 in the corner area. When the door body 220 needs to be opened, the locking plate 510 moves from the locked position to the unlocked position, and the degassing block 400 pushes up the corresponding position of the door body 220. The surrounding area of ​​the corresponding position is deformed corresponding to other areas of the door body 220, and the corresponding position is separated from the box body 210 to degas the vacuum box 200, release the negative pressure in the vacuum box 200, and facilitate the opening of the door body 220.

[0091] The deflating block 400 abuts against the guide rib 212 on one side of the circumference of the housing 210, facing away from the center of the corresponding locking plate 510, allowing the deflating block 400 to slide forward and backward along the guide rib 212. When the locking plate 510 is in the locked position, the abutting surface 512 of the locking plate 510 abuts against the rear end of the deflating block 400. In this embodiment, the deflating block 400 is positioned at the lower corners of the left and right sides of the door body 220. The lower surface of the deflating block 400 abuts against the upper surface of the guide rib 212, allowing the deflating block 400 to slide forward and backward along the guide rib 212. When the locking plate 510 moves from the locked position to the unlocked position, the abutting surface 512 drives the deflating block 400 forward.

[0092] In this embodiment, the air release block 400 can move in the direction of approaching and moving away from the box body 210, and the locking plate 510 is located on the side of the air release block 400 facing away from the box body 210. In the process of the locking plate 510 moving from the unlocked position to the locked position, the guide slope 513 of the locking plate 510 abuts against the side of the air release block 400 facing away from the box body 210. The guide slope 513 slides on the side of the air release block 400 facing away from the box body 210 and pushes the air release block 400 to move closer to the box body 210, so that the air release block 400 avoids the locking plate 510, so that the locking block 400 can move from the unlocked position to the locked position.

[0093] Furthermore, a transition slope 410 is recessed on the side of the deflating block 400 facing away from the housing 210. The transition slope 410 is tilted toward the housing 210 from the rear to the front. The transition slope 410 extends to an edge of the deflating block 400 adjacent to the rotation axis of the corresponding locking plate 510, thereby aligning with the guide slope 513. It should be noted that in this embodiment, the deflating block 400 is disposed on the left and right sides of the housing 210, with the transition slope 410 located on the side of the deflating block 400 facing away from the housing 210. The transition slope 410 extends to the upper edge of the deflating block 400. During the process of moving the locking plate 510 from the unlocked position to the locked position, the guide slope 513 of the locking plate 510 aligns with the transition slope 410 of the deflating block 400, thereby facilitating misalignment between the deflating block 400 and the locking plate 510.

[0094] An elastic member 450 is provided between the air-deflating block 400 and the box body 210 to drive the air-deflating block 400 to move backward; when the locking plate 510 moves a preset displacement from the locking position to the unlocking position, the locking plate 510 and the air-deflating block 400 are separated, and the elastic member 450 drives the air-deflating block 400 to move backward and return to the initial position.

[0095] In the back-to-front direction, the elastic member 450 is tilted toward the box body 210, allowing the air release block 400 to slide in the front-to-back direction and move toward and away from the box body 210. In this embodiment, the limiting rib 213 on the outer surface of the box body 210 abuts against the front end of the air release block 400 facing the box body 210, thereby allowing the rear end of the air release block 400 to move toward the box body 210. When the locking plate 510 moves from the unlocked position to the locked position, the locking plate 510 presses the rear end of the air release block 400 inward, causing it to move toward the box body 210, thereby allowing the air release block 400 and the locking plate 510 to avoid each other.

[0096] The elastic member 450 is a compression spring, and is tilted from the back to the front toward the box body 210. A protruding mounting post 420 is provided on the side of the deflating block 400 facing the box body 210. The mounting post 420 is tilted from the back to the front toward the box body 210. One end of the elastic member 450 is inserted into the mounting post 420, and the other end abuts the box body 210.

[0097] In this embodiment, one end of the elastic member 450 abuts against the box body 210 and is accommodated in the positioning groove 214 of the box body 210 .

[0098] A door sensor is provided on the side wall of the cabinet 100 for detecting the opening or closing of the door 220. When the door sensor detects the user placing something on the door 220 and the locking plate 510 is in the locked state, it sends a door opening signal to the sensor assembly. Based on the above structure, this embodiment also provides a refrigerator control method, including:

[0099] When the sensor assembly receives a signal indicating that the door 220 is closed on the box body 210, the control driving unit drives the locking plate 510 to move, causing the locking plate 510 to lock the catch plate 520. After the sensor assembly receives a signal indicating that the locking plate 510 is in the locked position, the control driving unit stops working to keep the locking plate 510 in the locked position.

[0100] In this embodiment, when the door 220 is pushed to close over the housing 210, the catch plate 520 on the door 220 moves backward. The door sensor detects this movement and determines that the door 220 is closed. After the door 220 closes over the housing 210, the catch plate 520 on the door 220 abuts the first microswitch, causing the latch 521 to extend into the slot 511. The first microswitch transmits a signal to the controller, which controls the motor 530 to rotate, driving the locking plate 510 from the unlocked position to the locked position. The locking plate 510 rotates, causing the latch 521 to be restrained in the slot 511. When the locking plate 510 rotates to the locked position, the abutting protrusion 612 on the locking plate 510 abuts the corresponding second microswitch 611. The corresponding second microswitch 611 transmits a signal to the controller, which controls the motor 530 to stop, maintaining the locking plate 510 in the locked position.

[0101] When the sensor assembly detects that the door 220 is covering the box body 210 and the locking plate 510 is not in the locked position, a closing signal is generated to lock the box body 210 and the door 220. Specifically, after the door 220 is covering the box body 210, the pinch plate 520 on the door 220 abuts against the first micro switch, and the locking plate 510 is not in the locked position, so the locking plate 510 is controlled to rotate toward the locked position.

[0102] When the sensor assembly receives a door opening signal, the control drive unit operates to move the locking plate 510 from the locking position toward the unlocking position, separating the locking plate 510 and the buckle plate 520 so that the door body 220 can be opened; when the sensor assembly receives a signal that the locking plate 510 moves to the unlocking stop position, the control drive unit stops operating to keep the locking plate 510 in the unlocking position.

[0103] In this embodiment, after the door body sensor receives the signal to open the door body 220, it transmits the signal to the controller, and the controller controls the motor 530 to rotate. The motor 530 rotates, driving the locking plate 510 to move from the locked position to the unlocked position. When the locking plate 510 moves to the unlocked position, the abutting protrusion 612 on the locking plate 510 abuts against the corresponding second microswitch 611, and the corresponding second microswitch 611 transmits the signal to the controller. The controller controls the motor 530 to stop working and keep the locking plate 510 in the unlocked position.

[0104] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are intended to be illustrative and exemplary rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. All changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A refrigerator, characterized in that: include: Box; A vacuum box is disposed in the box body; the vacuum box comprises a box body with an opening at the front side, and a door body that can be opened and closed to cover the opening of the box body; a vacuum pumping assembly, connected to the inner space of the vacuum box, for pumping a vacuum into the vacuum box; The locking assembly includes a locking plate rotatably connected to the box body, a pinch plate fixed to the door body, and a driving unit for driving the locking plate to rotate; the pinch plate is arranged corresponding to the locking plate and extends toward the box body to the peripheral side of the box body; the locking plate rotates around its own axis so that the locking plate can switch between a locked position engaged with the pinch plate and an unlocked position separated from the pinch plate; A deflating block is slidably arranged on the outer periphery of the box body; the deflating block corresponds to a corner of the door body; when the locking plate moves from the locking position to the unlocking position, the locking plate drives the deflating block forward to press against the corresponding corner of the door body, so that the door body is separated from the box body in the corner area.

2. The refrigerator according to claim 1, wherein: The locking plate is provided with a notch, and an abutting surface is formed on the inner wall of the notch; when the locking plate is in the locking position, the abutting surface abuts against the rear end of the air release block.

3. The refrigerator according to claim 2, characterized in that An elastic member is provided between the air-deflating block and the box body to drive the air-deflating block to move backward; when the locking plate moves a preset displacement from the locking position to the unlocking position, the locking plate and the air-deflating block are separated.

4. The refrigerator according to claim 3, characterized in that In the direction from back to front, the elastic member is arranged to be inclined toward the box body, so that the deflating block can slide in the front-back direction and can move in the direction of approaching and moving away from the box body.

5. The refrigerator according to claim 4, characterized in that The locking plate is provided with a guide slope corresponding to the air-deflating block on a side facing the box body; the guide slope is inclined toward the box body in the direction from back to front; in the process of the locking plate moving from the unlocking position to the locking position, the guide slope abuts against the side of the air-deflating block facing away from the box body, and the guide slope slides on the side of the air-deflating block facing away from the box body, and pushes the air-deflating block to move closer to the box body.

6. The refrigerator according to claim 5, characterized in that The side of the air-deflating block facing away from the box body is provided with a concave transition slope; the transition slope is tilted close to the box body in the direction from back to front; the transition slope passes through an edge of the air-deflating block close to the rotation axis of the locking plate, so as to be connected to the guide slope.

7. The refrigerator according to claim 4, characterized in that A guide rib is protruded on the outer side surface of the box body corresponding to the air release block, and the guide rib extends in the front-to-back direction. The air release block abuts against the guide rib on the circumference of the box body and on a side away from the center of the locking plate, so that the air release block can slide back and forth along the guide rib.

8. The refrigerator according to claim 7, characterized in that The box body is provided with a protruding limiting rib corresponding to the guide rib, and the limiting rib abuts against a side of the front end of the air release block facing the box body.

9. The refrigerator according to claim 4, characterized in that The elastic member is a compression spring, and the elastic member is tilted toward the box body in a direction from back to front.

10. The refrigerator according to claim 9, characterized in that The deflating block is provided with a protruding mounting post on one side facing the box body; the mounting post is tilted toward the box body from the back to the front, one end of the elastic member is passed through the mounting post, and the other end abuts against the box body.

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