CN117109216A - Refrigerator with a refrigerator body - Google Patents

Abstract

The application provides a refrigerator, which comprises a refrigerator body, a vacuum box, a vacuumizing assembly, a locking assembly and an air leakage block, wherein the vacuum box is arranged on the refrigerator body; the vacuum box comprises a box body with an opening at the front side and a door body which can be opened and closed at the opening of the box body; the locking component comprises a locking plate rotatably connected to the box body, a buckle plate fixed on the door body and a driving unit for driving the locking plate to rotate; the lock plate rotates about its own axis so that the lock plate can be switched between a lock position and an unlock position. When the locking plate moves from the locking position to the unlocking position, the locking plate drives the air leakage block to prop forward against the corresponding corner of the door body, so that the door body is separated from the box body in a corner area, air pressure inside and outside the box body is balanced, air leakage is automatically carried out, damage to the vacuum box is effectively avoided, and user experience is improved.

Description

Refrigerator with a refrigerator body

Technical Field

The application relates to the technical field of refrigeration, in particular to a refrigerator.

Background

The vacuum fresh-keeping technology is widely applied to the food packaging technology at present, and the air in the sealed packaging bag/packaging container is pumped out to enable the packaging bag/packaging container to be pumped into a state close to vacuum, so that the spoilage of microorganisms in the packaging bag/packaging container to food and the loss of nutritional ingredients are effectively inhibited, and the quality guarantee period of the food is effectively prolonged. In the existing fresh-keeping technology of the refrigerator, the application of the vacuum fresh-keeping drawer is the most effective way for realizing the vacuum fresh-keeping technology of the refrigerator. The working principle of the vacuum fresh-keeping drawer is that an air extractor is added on a sealed drawer box, and the air extractor extracts air from the drawer, so that a low-pressure vacuum state is formed in the drawer, and the spoilage of microorganisms in the drawer to foods and the loss of nutritional ingredients can be effectively inhibited, thereby prolonging the shelf life of the foods.

In the related art, when the vacuum drawer is opened, the difference between the internal pressure and the external pressure is large, and due to the action of the negative pressure, a user is difficult to pull the drawer open, and the drawer is easily damaged due to excessive force.

Disclosure of Invention

The application aims to provide a refrigerator with a vacuum box, which can automatically release air and improve the experience of a user.

In order to solve the technical problems, the application adopts the following technical scheme:

according to one aspect of the application, the application provides a refrigerator, comprising a refrigerator body, a vacuum box, a vacuumizing assembly, a locking assembly and a leakage block; the vacuum box is arranged in the box body; the vacuum box comprises a box body with an opening at the front side and a door body which can be opened and closed at the opening of the box body; the vacuum box is communicated with the inner space of the vacuum box and is used for vacuumizing the vacuum box; the locking assembly comprises a locking plate rotatably connected to the box body, a buckle plate fixed on the door body and a driving unit for driving the locking plate to rotate; the buckle plate is arranged corresponding to the locking plate and extends to the periphery of the box body towards the box body; the locking plate rotates around the axis of the locking plate, so that the locking plate can be switched between a locking position clamped on the buckle plate and an unlocking position separated from the buckle plate; the air leakage block is slidably arranged on the periphery of the box body; the air leakage block corresponds to one corner of the door body; when the locking plate moves from the locking position to the unlocking position, the locking plate drives the air leakage block to forward abut against the corresponding corner of the door body, so that the door body is separated relative to the box body in the corner area.

In some embodiments of the present application, the locking plate is provided with a notch, and an abutment surface is formed at the inner wall of the notch; when the locking plate is at the locking position, the abutting surface abuts against the rear end of the air leakage block.

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

In some embodiments of the present application, the elastic member is disposed obliquely toward the case in a direction from rear to front so that the air escape block can slide in the front-rear direction and can move in a direction approaching and separating from the case.

In some embodiments of the present application, a guide inclined plane is disposed on a surface of the locking plate facing the box body, corresponding to the air leakage block; the guide inclined surface is obliquely arranged towards the box body in the direction from back to front; in the process that the locking plate moves from the unlocking position to the locking position, the guide inclined surface is abutted to one surface of the air leakage block, which is opposite to the box body, and the guide inclined surface slides on one surface of the air leakage block, which is opposite to the box body, and pushes the air leakage block to move close to the box body.

In some embodiments of the present application, a transition inclined plane is concavely formed on one surface of the air leakage block facing away from the box body; the transition inclined plane is obliquely arranged close to the box body in the direction from back to front; the transition bevel extends through to an edge of the bleed block proximate to the axis of rotation of the lock plate for interfacing with the guide bevel.

In some embodiments of the present application, a guide rib is protruding on the outer side surface of the box body corresponding to the air leakage block, the guide rib extends along the front-back direction, and one surface of the air leakage block, which faces away from the center of the corresponding locking plate and is in the circumferential direction of the box body, abuts against the guide rib, so that the air leakage block can slide along the guide rib.

In some embodiments of the present application, protruding limiting ribs are provided on the box body corresponding to the guiding ribs, and the limiting ribs are abutted against one surface of the front end of the air leakage block facing the box body.

In some embodiments of the application, the elastic member is a compression spring, and the elastic member is disposed obliquely toward the case in a direction from back to front.

In some embodiments of the present application, a protruding mounting post is disposed on a surface of the air leakage block facing the box body; the mounting column is obliquely arranged from the back to the front direction towards the box body, one end of the elastic piece is arranged in the mounting column in a penetrating mode, and the other end of the elastic piece is abutted to the box body.

According to the technical scheme, the application has at least the following advantages and positive effects:

in the application, when the locking plate is in the unlocking position, the locking plate and the buckle plate can be separated, so that the door body can be opened or closed to take and put articles in the vacuum box. The door body is covered on the box body, the locking plate is arranged at the locking position, the locking plate is clamped on the buckle plate, and the door body is locked to move relative to the box body, so that the door body is sealed on the box body, the air leakage of the vacuum box is effectively avoided, and the storage of foods is effectively ensured.

When the locking plate moves from the locking position to the unlocking position, the locking plate drives the air leakage block to prop forward against the corresponding corner of the door body, so that the door body is separated from the box body in a corner area, air pressure inside and outside the box body is balanced, air leakage is automatically carried out, damage to the vacuum box is effectively avoided, and user experience is improved. Other air leakage structures are not needed for air leakage of the vacuum box, and cost is reduced.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the refrigerator of the present application.

Fig. 2 is a partial structural schematic view of an embodiment of the refrigerator of the present application, in which a cabinet is not shown.

Fig. 3 is a schematic view of the structure of a vacuum box of an embodiment of the refrigerator of the present application.

Fig. 4 is a schematic view of a refrigerator embodiment of the present application.

Fig. 5 is a schematic view showing the structure of a door body of an embodiment of the refrigerator of the present application.

Fig. 6 is a schematic view showing a structure of a locking assembly on a case of the refrigerator according to the embodiment of the present application.

Fig. 7 is a schematic view of a structure of a locking assembly of an embodiment of a refrigerator of the present application.

Fig. 8 is a partial structural schematic view of a locking assembly of an embodiment of a refrigerator.

Fig. 9 is a schematic view showing the structure of a buckle plate of an embodiment of the refrigerator of the present application.

Fig. 10 is a schematic structural view of a locking plate of an embodiment of the refrigerator of the present application.

Fig. 11 is a schematic view showing a structure of a portion of a sensor assembly on a case of a refrigerator according to an embodiment of the present application.

Fig. 12 is a schematic structural view of a detecting unit of an embodiment of the refrigerator of the present application.

Fig. 13 is a schematic view showing the structure of the air leakage block of the refrigerator according to the embodiment of the present application.

Fig. 14 is a schematic view showing the cooperation between the air escape block and the locking plate in the embodiment of the refrigerator of the present application.

Fig. 15 is a schematic view of the structure shown in fig. 14 from another perspective.

The reference numerals are explained as follows: 100. a case; 200. a vacuum box; 210. a case body; 211. a rotation shaft; 212. a guide rib; 213. a limit rib; 214. a positioning groove; 220. a door body; 221. a sealing gasket; 300. a vacuum pumping assembly;

400. a gas leakage block; 410. a transition inclined plane; 420. a mounting column; 450. an elastic member;

500. a locking assembly; 510. a locking plate; 511. a clamping groove; 512. an abutment surface; 513. a guide slope; 520. a buckle plate; 521. a clamping column; 522. an abutting portion; 530. a motor; 540. a screw rod;

610. a detection unit; 611. a second microswitch; 612. the supporting bulge; 613. a mounting plate; 620. and a monitoring unit.

Detailed Description

Exemplary embodiments that embody features and advantages of the present application will be described in detail in the following description. It will be understood that the application is capable of various modifications in various embodiments, all without departing from the scope of the application, and that the description and illustrations herein are intended to be by way of illustration only and not to be construed as limiting the application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in 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 configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

For convenience of description and understanding, a direction facing a user is a front direction and a direction facing away from the user is a rear direction with reference to a state of the refrigerator when it is placed upright.

Fig. 1 is a schematic structural view of an embodiment of the refrigerator of the present application.

Referring to fig. 1, the present embodiment provides a refrigerator for storing articles at a low temperature. The refrigerator includes a cabinet 100, a door (not shown) rotatably covered on the cabinet 100, a vacuum box 200 provided in the cabinet 100, and a refrigerating assembly provided in the cabinet 100.

The cabinet 100 is formed with a refrigerating compartment having a front opening, and articles are stored at a low temperature in the refrigerating compartment. The refrigerated compartments generally include a refrigerating compartment and a freezing compartment. The specific structure of the case 100 is referred to the structure of the case in the related art, and will not be described herein.

In this embodiment, the box door is rotatably covered on the box body 100, so as to open or close the refrigerating compartment of the box body 100, and take and put articles in the refrigerating compartment. In some embodiments, the door is a drawer door that slidably covers the front side of the cabinet 100.

The refrigerating assembly is used for releasing heat in the refrigerator to the external environment so as to provide cold energy for the refrigerating compartment, so that the low-temperature environment in the refrigerating compartment is maintained. The refrigeration assembly comprises a compressor, a condenser, an evaporator, capillary vessels and the like. The specific structure and connection relation of the refrigeration assembly refer to the refrigeration assembly in the related art, and are not described herein.

Fig. 2 is a partial structural schematic view of an embodiment of the refrigerator of the present application, in which a cabinet is not shown. Fig. 3 is a schematic view of the structure of a vacuum box 200 according to an embodiment of the refrigerator of the present application. Fig. 4 is a schematic view illustrating a structure of a case 210 of the refrigerator according to the embodiment of the present application.

Referring to fig. 1 to 4, a vacuum box 200 is provided in the case 100 for vacuum-preserving food. In some embodiments, the vacuum box 200 is disposed on a side of the box door facing the box 100. The vacuum box 200 includes a box body 210 having a front opening, and a door 220 openably and closably covering the opening of the box body 210. The door 220 serves to close or open the case 210 to take and store articles in the vacuum case 200.

The case 210 is accommodated in the cooling compartment of the case 100. The case 210 forms a hollow chamber with a front side opened to form an inner space within the case 210.

The outer peripheral wall of the case 210 is provided with a rotation shaft 211 protruding. In the present embodiment, the rotation shafts 211 are provided on the left and right outer sides of the case 210. In some embodiments, the rotation shaft 211 is disposed on the upper and lower outer sidewalls of the case 210.

In the present embodiment, the rotation shafts 211 are provided in two at intervals, and the two rotation shafts 211 are provided at intervals in the up-down direction.

The outer side surface of the case 210 is provided with a guide rib 212, the guide rib 212 extends along the front-rear direction, and the guide rib 212 is arranged corresponding to one corner of the case 210. In this embodiment, the guide ribs 212 are disposed on the left and right outer sides of the case 210, and the guide ribs 212 are disposed corresponding to corners below the left and right outer sides of the case 210. In some embodiments, the guide ribs 212 are disposed on the upper and lower exterior sides of the cassette 210.

The box body 210 is provided with a protruding limiting rib 213 corresponding to the guide rib 212, and 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 disposed at the lower portions of the left and right outer sides of the case 210, and the limit rib 213 is disposed above the guide rib 212 and near the guide rib 212.

In this embodiment, a positioning groove 214 is concavely disposed on the box 210 in a region near the guiding rib 212 and the limiting rib 213.

Fig. 5 is a schematic view illustrating a structure of a door 220 of an embodiment of a refrigerator according to the present application.

Referring to fig. 2 to 5, the door 220 is of a drawer type structure, a drawer portion of which is used for receiving articles and is disposed in the case 210, and the door 220 is slidably disposed on the case 210. In some embodiments, the door 220 has a plate-like structure, and the door 220 is detachably covered on the box 210, or the door 220 is rotatably covered on the box 210.

The door 220 is provided with a flexible gasket 221 on a side facing the case 210, the gasket 221 is in an annular structure, and when the door 220 is covered on the case 210, the gasket 221 is attached to and hermetically connected to the front side of the case 210.

In this embodiment, the outer periphery of the case 210 is provided with a vacuum pumping assembly 300, and the vacuum pumping assembly 300 is communicated with the inner space of the vacuum case 200 for pumping vacuum to the vacuum case 200. Specifically, the vacuum pumping assembly 300 is connected to the inner space of the case 210 through a pipe, and when the door 220 is closed onto the case 210, the vacuum pumping assembly 300 pumps vacuum into the vacuum case 200 to form a vacuum environment in the vacuum case 200 for vacuum storage of the articles.

Fig. 6 is a schematic view illustrating a structure of a locking assembly 500 on a case 210 according to an embodiment of the refrigerator of the present application. Fig. 7 is a schematic view of a structure of a locking assembly 500 of an embodiment of a refrigerator according to the present application. Fig. 8 is a partial structural schematic diagram of a locking assembly 500 of an embodiment of a refrigerator.

Referring to fig. 2 to 8, in the present embodiment, a locking assembly 500 is disposed on the vacuum box 200, and the locking assembly 500 can lock the relative movement between the box 210 and the door 220, so as to lock the door 220 on the box 210, thereby effectively ensuring the sealing of the vacuum box 200. The locking assembly 500 is disposed at the upper and lower sides or the left and right sides of the case 210.

The locking assembly 500 includes a locking plate 510 rotatably coupled to the case 210, a buckle plate 520 fixed to the door 220, and a driving unit for driving the locking plate 510 to rotate; the buckle plate 520 is disposed corresponding to the locking plate 510 and extends toward the case 210 to the peripheral side of the case 210; the locking plate 510 rotates about its own axis to switch the locking plate 510 between the locking position and the unlocking position. The locking plate 510 is sleeved on the outer circumference of the rotation shaft 211, so that the locking plate 510 can rotate relative to the case 210.

When the door 220 is covered on the box 210, in the locking position, the locking plate 510 is locked on the buckle 520 to lock the door 220 to move relative to the box 210; in the unlock position, the locking plate 510 and the buckle 520 are separated, so that the door 220 can be opened.

Fig. 9 is a schematic view showing the structure of a buckle 520 of the refrigerator according to the embodiment of the present application.

Referring to fig. 2 to 9, the buckle 520 is disposed corresponding to the locking plate 510 and extends toward the case 210. In this embodiment, the door 220 is disposed at the front side of the box 210, the buckle 520 extends backward from the door 220, and a fastening post 521 protrudes from a surface of the buckle 520 opposite to the box 210, so that a fastening position is formed on the buckle 520. In some embodiments, the clip 521 protrudes from a side of the clip 520 facing the case 210.

In this embodiment, the buckle 520 is disposed corresponding to the left and right outer sides of the case 210, and the clamping posts 521 extend in the left and right direction toward the left and right sides of the case 210. In some embodiments, the buckle 520 is disposed corresponding to the upper and lower outer sides of the case 210, and the clamping posts 521 extend toward the corresponding upper and lower sides of the case 210 along the up and down direction.

In some embodiments, the buckle 520 has a buckling groove formed thereon, and the buckling groove is a buckling position.

In this embodiment, the buckling plates 520 are disposed corresponding to the left and right sides of the case 210, and the buckling plates 520 are disposed in two along the up-down direction at intervals. In some embodiments, the buckling plates 520 are disposed corresponding to the upper and lower sides of the case 210, and the buckling plates 520 are disposed at intervals in the left-right direction.

Fig. 10 is a schematic structural view of a locking plate 510 according to an embodiment of the refrigerator of the present application.

Referring to fig. 6 to 10, a locking plate 510 is rotatably provided at the outer circumference of the case 210. The locking plate 510 and the buckle plate 520 are spaced apart in a direction away from the case 210. In this embodiment, the buckle 520 is located on a side of the locking plate 510 facing the case 210. In other embodiments, the pinch plate 520 is located on a side of the locking plate 510 facing away from the case 210.

The locking plate 510 is provided with a locking groove 511 to form a locking position. The locking plate 510 has a plate-like structure, and the locking plate 510 has a peripheral edge that is open to form a locking groove 511, and the locking groove 511 penetrates through two opposite side surfaces of the locking plate 510. The clamping posts 521 on the buckle 520 can extend into and be clamped in the clamping grooves 511.

In the present embodiment, the lock plate 510 rotates about its own axis, so that the lock plate 510 is switched between the lock position and the unlock position; when the door 220 is covered on the box 210, the locking position and the buckling position are matched at the locking position, so that the door 220 is locked against the movement of the box 210, and the sealing of the door 220 on the box 210 is ensured. When the door 220 is closed onto the case 210, in the unlock position, the lock position and the lock position are separated, and the lock plate 510 releases the lock of the buckle 520, so that the door 220 can move relative to the case 210, and the door 220 can be opened.

When the locking plate 510 is in the unlocking position, the locking plate 510 and the buckle 520 can be separated, so that the door 220 can be opened or closed to take and put the article in the vacuum box 200. The door 220 is covered on the box 210, the locking plate 510 is at the locking position, the locking position is matched with the buckling position, and the door 220 is locked against the movement of the box 210, so that the door 220 is sealed on the box 210, the air leakage of the vacuum box 200 is effectively avoided, and the storage of food is effectively ensured.

In this embodiment, the locking position is a locking slot 511 on the locking plate 510, the buckling position is a locking post 521 on the buckling plate 520, and the locking plate 510 rotates, so that the locking plate 510 and the buckling plate 520 can be matched. In some embodiments, the locking position is a corresponding locking post 521, the buckle 520 is a corresponding locking slot 511, and the locking plate 510 rotates, so that the locking post 521 extends into and is limited in the locking slot 511, thereby limiting the movement of the buckle 520.

In this embodiment, the extending direction of the locking slot 511 is tangential to one radial direction of the locking plate 510, and when the locking post 521 extends into the locking slot 511, the locking plate 510 rotates to drive the locking slot 511 to move, and the locking slot 511 moves to drive the locking post 521 to move backward, thereby locking the door 220 and the box 210. The caliber of the clamping groove 511 is gradually reduced in the direction close to the rotation axis of the locking plate 510, so that the clamping groove 511 can be more stable to limit the clamping column 521, and the locking of the door 220 is ensured to be more stable.

The driving unit includes a motor 530, and a screw 540 drivingly connected to the motor 530. The screw rod 540 is connected to the outer circumference of the locking plate 510 in a driving manner to drive the locking plate 510 to rotate. The outer circumference of the locking plate 510 is provided with inclined teeth; the screw 540 is engaged with teeth on the locking plate 510.

The number of the locking plates 510 is two corresponding to the pinch 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 locking of the locking assembly 500 is more stable by the cooperation of the two locking plates 510 and the two pinch plates 520.

In this embodiment, the inclination directions of the teeth on the outer peripheries of the two locking plates 510 are opposite, so that the screw rod 540 drives the two locking plates 510 to rotate in opposite directions or in opposite directions, and when the screw rod 540 rotates, the rotation directions of the two locking plates 510 are opposite.

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

In some embodiments, the drive unit does not include a screw 540, and the output shaft of the motor 530 is fixedly coupled to the locking plate 510.

Note that, two lock plates 510 are provided, one lock plate 510 is notched, and an abutment surface 512 is formed at the inner wall of the notch. In this embodiment, the notch is formed at the clamping groove 511, and the side surface of the clamping groove 511 facing the door 220 forms the contact surface 512. The notch and the locking groove 511 are formed at the same position, which reduces the number of processes and ensures the structural strength of the locking plate 510. In some embodiments, the locking plate 510 is provided with a single notch extending through opposite sides. In other embodiments, both locking plates 510 are provided with notches and corresponding abutment surfaces 512.

The locking plate 510 is provided with a guide inclined surface 513 on a surface facing the case 210; the guide slope 513 is disposed obliquely toward the case 210 in a direction from the rear to the front.

Fig. 11 is a schematic view showing a structure of a portion of a sensor assembly on a case 210 according to an embodiment of the refrigerator of the present application. Fig. 12 is a schematic structural view of a detecting unit 610 according to an embodiment of the refrigerator of the present application.

Referring to fig. 2 to 12, the refrigerator further includes a sensor assembly for detecting an opened and closed state of the door 220 and a position of the locking plate 510; the vacuum pumping assembly 300 and the sensor assembly are electrically connected to the driving unit, so that the locking plate 510 is controlled to automatically rotate by the driving unit, so that the locking plate 510 is engaged with or separated from the buckle 520.

The sensor assembly includes a detection unit 610 provided on the case 210 for detecting the position of the locking plate 510, and a monitoring unit 620 for monitoring the opened and closed state of the door 220. The detection unit 610 transmits a signal to the driving unit when the locking plate 510 is rotated to the locking position or the unlocking position.

The monitoring unit 620 is a first micro switch fixed on the outer periphery of the box 210; when the door 220 is closed on the box 210, the buckle 520 is pressed on the first micro switch.

In this embodiment, the buckle 520 is provided with an abutting portion 522; when the door 220 is closed on the case 210, the abutting portion 522 is pressed onto the first micro switch.

The detecting unit 610 includes a plurality of second micro switches 611 fixed on the outer circumference of the case 210, and a plurality of abutting protrusions 612 protruding on one surface of the locking plate 510 facing the case 210; when the locking plate 510 is rotated to the locking position or the unlocking position, the abutment protrusion 612 abuts against the corresponding second micro switch 611. In this embodiment, the abutment protrusion 612 is disposed on a locking plate 510.

In the present embodiment, the detection unit 610 is also fixed to a mounting plate 613 on the outer periphery of the case 210; two second microswitches 611 are arranged, and the two second microswitches 611 are arranged on the opposite sides of the mounting plate 613; the number of the propping protrusions 612 is correspondingly two; the two abutment protrusions 612 are spaced apart, so that when the locking plate 510 is rotated to the corresponding position, the abutment protrusions 612 abut against the corresponding second micro switches 611. In some embodiments, the detection unit 610 is a corresponding light sensor.

The refrigerator further includes a controller, and a door sensor that obtains information of opening and closing the door. The door body sensor, the sensor component and the driving unit are all electrically connected with the controller.

Fig. 13 is a schematic structural view of a venting block 400 of an embodiment of the refrigerator of the present application. Fig. 14 is a schematic view of the cooperation between the venting block 400 and the locking plate 510 in the refrigerator embodiment of the present application. Fig. 15 is a schematic view of the structure shown in fig. 14 from another perspective.

Referring to fig. 2 to 15, the case 210 is further provided with a venting block 400. The air leakage block 400 is slidably arranged at the periphery of the box body 210; the air bleed block 400 corresponds to one corner of the door 220. When the locking plate 510 moves from the locking position to the unlocking position, the locking plate 510 drives the air release block to forward against the corresponding corner of the door 220, so that the door 220 is separated from the box 210 in the corner region. When the door 220 needs to be opened, the locking plate 510 moves from the locking position to the unlocking position, the air release block 400 lifts up the corresponding position of the door 220, the peripheral area of the corresponding position deforms corresponding to other areas of the door 220, and the corresponding position is separated from the box 210 to release air from the vacuum box 200, and negative pressure in the vacuum box 200 is released, so that the door 220 is opened conveniently.

The air release block 400 abuts against the guide rib 212 on one surface of the box 210, which faces away from the center of the corresponding locking plate 510, in the circumferential direction of the box 210, so that the air release block 400 can slide back and forth along the guide rib 212. When the locking plate 510 is in the locking position, the abutment surface 512 of the locking plate 510 abuts against the rear end of the venting block 400. In the present embodiment, the air release block 400 is disposed corresponding to the corners of the right and left sides of the door 220, the lower surface of the air release block 400 is abutted against the upper surface of the guide rib 212, and the air release block 400 can slide back and forth along the guide rib 212. When the locking plate 510 moves from the locking position to the unlocking position, the abutment surface 512 drives the air bleed block 400 to move forward.

In this embodiment, the air release block 400 can move along the direction approaching and separating from the box 210, the locking plate 510 is located on one side of the air release block 400 facing away from the box 210, during the process of moving the locking plate 510 from the unlocking position to the locking position, the guiding inclined plane 513 of the locking plate 510 abuts against one side of the air release block 400 facing away from the box 210, the guiding inclined plane 513 slides on one side of the air release block 400 facing away from the box 210, and pushes the air release block 400 to move close to the box 210, so that the air release block 400 keeps away from the locking plate 510, and the locking block 400 can move from the unlocking position to the locking position.

Further, a transition inclined surface 410 is concavely formed on one surface of the air leakage block 400 facing away from the box body 210; the transition slope 410 is disposed obliquely near the case 210 in a direction from the rear to the front; the transition ramp 410 extends through to one edge of the bleed block 400 near the axis of rotation of the corresponding lock plate 510 for interfacing with the guide ramp 513. In this embodiment, the air leakage block 400 is disposed corresponding to the left and right sides of the box 210, the transition inclined surface 410 is disposed on a surface of the air leakage block 400 facing away from the box 210, and the transition inclined surface 410 penetrates to the upper edge of the air leakage block 400. During movement of locking plate 510 from the unlocked position to the locked position, guide ramp 513 of locking plate 510 interfaces with transition ramp 410 of venting block 400 to facilitate misalignment between venting block 400 and locking plate 510.

An elastic member 450 is provided between the air release block 400 and the case 210 to enable the air release block 400 to move backward; when the locking plate 510 moves from the locking position to the unlocking position by a preset displacement, the locking plate 510 and the venting block 400 are separated, and the elastic member 450 drives the venting block 400 to move backward and return to the initial position.

In the back-to-front direction, the elastic member 450 is provided obliquely toward the case 210 so that the air release block 400 can slide in the front-to-back direction and can move in the direction approaching and moving away from the case 210. In this embodiment, the limit rib 213 on the outer side of the box body 210 abuts against one surface of the front end of the air release block 400 facing the box body 210, so that the rear end of the air release block 400 can move towards the box body 210, and when the locking plate 510 moves from the unlocking position to the locking position, the locking plate 510 presses the rear end of the air release block 400 inwards to move towards the box body 210, so that the air release block 400 and the locking plate 510 are kept away.

The elastic member 450 is a compression spring, and the elastic member 450 is inclined toward the case 210 in a backward-forward direction. The side of the air leakage block 400 facing the box body 210 is provided with a protruding mounting column 420; the mounting post 420 is inclined from the back to the front toward the case 210, and one end of the elastic member 450 is inserted into the mounting post 420, and the other end abuts against the case 210.

In this embodiment, the elastic member 450 abuts against one end of the case 210 and is accommodated in the positioning slot 214 of the case 210.

The door sensor for acquiring the opening or closing motion of the door 220 is provided on the sidewall of the case 100; when the door sensor acquires the user's action of being placed on the door 220 and the locking plate 510 is in the locked state, a door opening signal is sent to the sensor assembly. Based on the above structure, the present embodiment further provides a control method of a refrigerator, including:

when the sensor assembly receives the signal that the door 220 is closed on the box 210, the driving unit is controlled to drive the locking plate 510 to move, so as to drive the locking plate 510 to lock the buckle 520. After the sensor assembly receives a signal that the lock plate 510 is in the locked position; the driving unit is controlled to stop to maintain the locking plate 510 at the locking position.

In this embodiment, the door 220 is pushed to cover the box 210, the buckle 520 on the door 220 moves backward, and the door sensor detects the corresponding action to determine that the door 220 is closed. After the door 220 is covered on the box 210, the buckle 520 on the door 220 abuts against the first micro switch, and the clamping post 521 extends into the clamping groove 511. The first micro switch transmits a signal to the controller, and the controller controls the motor 530 to rotate to drive the locking plate 510 to move from the unlocking position to the locking position, and the locking plate 510 rotates, so that the clamping column 521 is limited in the clamping groove 511. When the locking plate 510 rotates to the locking position, the abutting protrusion 612 on the locking plate 510 abuts against the corresponding second micro switch 611, and the corresponding second micro switch 611 transmits a signal to the controller, and the controller controls the motor 530 to stop working, so as to maintain the locking position of the locking plate 510.

When the sensor assembly detects that the door 220 is covered on the case 210 and the sensor assembly detects that the locking plate 510 is not in the locked position, a closing signal to lock the case 210 and the door 220 is generated. Specifically, after the door 220 is covered on the box 210, the buckle 520 on the door 220 abuts against the first micro switch, and the locking plate 510 is not located at the locking position, so as to control the locking plate 510 to rotate towards the locking position.

When the sensor assembly receives the door opening signal, the driving unit is controlled to work so that the locking plate 510 moves from the locking position to the unlocking position, and the locking plate 510 and the pinch plate 520 are separated so as to be capable of opening the door 220; when the sensor assembly receives a signal that the locking plate 510 is moved to the unlocking position, the driving unit is controlled to stop operating to maintain the locking plate 510 in the unlocking position.

In this embodiment, after the door sensor receives the signal for opening the door 220, the signal is transmitted to the controller, the controller controls the motor 530 to rotate, the motor 530 rotates to drive the locking plate 510 to move from the locking position to the unlocking position, when the locking plate 510 moves to the unlocking position, the abutting protrusion 612 on the locking plate 510 abuts against the corresponding second micro switch 611, the corresponding second micro switch 611 transmits the signal to the controller, and the controller controls the motor 530 to stop working, so as to maintain the unlocking position of the locking plate 510.

While the application has been described with reference to several exemplary embodiments, it is to be understood that the terminology used is intended to be in the nature of words of description and of limitation. As the present application may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.

Claims (10)

1. A refrigerator, comprising:

a case;

a vacuum box provided in the case; the vacuum box comprises a box body with an opening at the front side and a door body which can be opened and closed at the opening of the box body;

the vacuumizing assembly is communicated with the inner space of the vacuum box and is used for vacuumizing the vacuum box;

the locking assembly comprises a locking plate rotatably connected to the box body, a buckle plate fixed on the door body and a driving unit for driving the locking plate to rotate; the buckle plate is arranged corresponding to the locking plate and extends to the periphery of the box body towards the box body; the locking plate rotates around the axis of the locking plate, so that the locking plate can be switched between a locking position clamped on the buckle plate and an unlocking position separated from the buckle plate;

the air leakage block is slidably arranged on the periphery of the box body; the air leakage block corresponds to one corner of the door body; when the locking plate moves from the locking position to the unlocking position, the locking plate drives the air leakage block to forward abut against the corresponding corner of the door body, so that the door body is separated relative to the box body in the corner area.

2. The refrigerator of claim 1, wherein the locking plate is provided with a notch, and an abutment surface is formed at an inner wall of the notch; when the locking plate is at the locking position, the abutting surface abuts against the rear end of the air leakage block.

3. The refrigerator of claim 2, wherein an elastic member is provided between the air release block and the case so as to be capable of driving the air release block to move backward; when the locking plate moves from the locking position to the unlocking position by a preset displacement, the locking plate and the air leakage block are separated.

4. The refrigerator of claim 3, wherein the elastic member is provided obliquely toward the case in a direction from rear to front so that the air escape block can slide in the front-rear direction and can move in a direction approaching and separating from the case.

5. The refrigerator of claim 4, wherein a guide slope is provided on a surface of the locking plate facing the case corresponding to the air leakage block; the guide inclined surface is obliquely arranged towards the box body in the direction from back to front; in the process that the locking plate moves from the unlocking position to the locking position, the guide inclined surface is abutted to one surface of the air leakage block, which is opposite to the box body, and the guide inclined surface slides on one surface of the air leakage block, which is opposite to the box body, and pushes the air leakage block to move close to the box body.

6. The refrigerator of claim 5, wherein a transition inclined surface is concavely formed on one surface of the air leakage block facing away from the box body; the transition inclined plane is obliquely arranged close to the box body in the direction from back to front; the transition bevel extends through to an edge of the bleed block proximate to the axis of rotation of the lock plate for interfacing with the guide bevel.

7. The refrigerator according to claim 4, wherein the outer side surface of the case body is provided with a guide rib protruding corresponding to the air release block, the guide rib extends in the front-rear direction, and the air release block abuts against the guide rib on one surface of the case body in the circumferential direction and deviating from the center of the locking plate, so that the air release block can slide along the guide rib.

8. The refrigerator of claim 7, wherein the box body is provided with a protruding limit rib corresponding to the guide rib, and the limit rib is abutted to one face, facing the box body, of the front end of the air leakage block.

9. The refrigerator of claim 4, wherein the elastic member is a compression spring, and the elastic member is disposed obliquely toward the case in a backward-to-forward direction.

10. The refrigerator of claim 9, wherein a protruding mounting post is provided on a side of the air release block facing the case; the mounting column is obliquely arranged from the back to the front direction towards the box body, one end of the elastic piece is arranged in the mounting column in a penetrating mode, and the other end of the elastic piece is abutted to the box body.