CN216114960U

CN216114960U - Vacuum storage device and refrigerator

Info

Publication number: CN216114960U
Application number: CN202121309407.4U
Authority: CN
Inventors: 吕鹏; 张�浩; 刘宏晖; 徐同; 李卓厉
Original assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Special Refrigeration Electric Appliance Co Ltd
Current assignee: Qingdao Haier Refrigerator Co Ltd; Haier Smart Home Co Ltd; Qingdao Haier Special Refrigeration Electric Appliance Co Ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-03-22
Anticipated expiration: 2031-06-11

Abstract

The utility model provides a vacuum storage device, comprising: the storage box is internally provided with a storage space, and an air suction opening is formed in the storage box; the air exhaust base is used for bearing the storage box; the vacuum pump is configured to pump out part or all of air in the storage space through the air pumping port; and the microswitch is arranged on the air exhaust base and is electrically connected with the vacuum pump, so that the microswitch is triggered to start the vacuum pump. The air exhaust control of the storage box of the vacuum storage device is simple. The utility model also provides a refrigerator with the vacuum storage device.

Description

Vacuum storage device and refrigerator

Technical Field

The utility model relates to the technical field of refrigeration and freezing, in particular to a vacuum storage device and a refrigerator.

Background

Along with the improvement of the living standard of people, the demand of consumers on the refrigerator is higher and higher, and in order to improve the preservation performance of the refrigerator, the refrigerator with the vacuumizing function appears in the prior art and is favored by the consumers. The refrigerator is realized by the principle that a certain chamber of the refrigerator is vacuumized by using a vacuum pump, so that the problem of inconvenience in taking and placing food materials exists, and the components of the vacuum fresh-keeping part are unreasonable in arrangement, so that air exhaust control is complex.

SUMMERY OF THE UTILITY MODEL

It is an object of the present invention to overcome at least one of the disadvantages of the prior art and to provide a vacuum storage device that facilitates air extraction control.

A further object of the present invention is to provide a vacuum storage device which is easy to vacuumize and has a good fresh-keeping effect.

In particular, the present invention provides a vacuum storage device comprising:

the storage box is internally provided with a storage space, and an air suction opening is formed in the storage box;

the air exhaust base is used for bearing the storage box;

the vacuum pump is configured to pump out part or all of air in the storage space through the air pumping port; and

the microswitch is arranged on the air exhaust base and is electrically connected with the vacuum pump so as to trigger the microswitch to start the vacuum pump.

Optionally, the vacuum storage device further comprises: the atmospheric pressure sensing unit sets up and communicates with the storing space and sets up with micro-gap switch is relative, and wherein atmospheric pressure sensing unit configures into: the air pressure in the storage space is higher than a preset air pressure value, and the air pressure sensing unit moves towards the micro switch and triggers the micro switch to enable the vacuum pump to be started.

Optionally, the top wall of the air exhaust base is provided with a through hole;

the micro switch is arranged in the air exhaust base, and the sensing head part of the micro switch exceeds the through hole and is arranged opposite to the air pressure sensing unit.

Optionally, an air pressure sensing cavity is formed at the bottom of the storage box corresponding to the through hole, wherein a first through hole communicated with the storage space is formed in the top wall of the air pressure sensing cavity, and a second through hole communicated with the outside is formed in the bottom wall of the air pressure sensing cavity;

the air pressure sensing unit comprises a flexible deformation piece and is arranged in the air pressure sensing cavity, so that when the air pressure in the storage space is higher than a preset air pressure value, at least part of the flexible deformation piece protrudes out of the second through hole to trigger the micro switch.

Optionally, the air pressure sensing unit further includes a spring interposed between the first through hole and the flexible deformation member.

Optionally, the flexible deformable member comprises: the deformation part is arranged at the second through hole, the fixing part extends outwards from the periphery of the deformation part, and the guide part extends from the deformation part to one side far away from the second through hole;

the spring is sleeved outside the guide part.

Optionally, the storage box comprises an inner box body and an outer box body, wherein

A storage space is defined in the inner box body;

the outer box body is sleeved outside the inner box body and has a gap with the inner box body, an air pumping opening and an air pressure sensing cavity are formed in the outer box body, and the vacuum pump pumps out part or all of air in the storage space sequentially through the air pumping opening and the gap.

Optionally, a first air extraction opening is formed in the air extraction base;

the base of bleeding is injectd in and has been had accommodation space, and the vacuum pump sets up in accommodation space, and the vacuum pump is in proper order through first extraction opening, the clearance partial or whole gas in taking out the storing space.

Optionally, a first air extraction opening is formed in the top wall of the air extraction base, and an air extraction opening is formed in the bottom wall of the outer box body;

the vacuum storage device further comprises:

the base air exhaust switch is arranged at the first air exhaust opening and is configured into: when the storage box is placed at the first air exhaust opening, the base air exhaust switch moves downwards under the action of gravity of the storage box and forms an air exhaust channel with the first air exhaust opening; removing the storage box, and moving the base air extraction switch upwards and sealing the first air extraction opening; and/or

The box body air exhaust switch is arranged at the air exhaust opening, wherein the box body air exhaust switch is an elastic piece and is configured into: the vacuum pump is started, and the box body air extraction switch moves downwards under the suction force to form an air extraction channel with the air extraction opening; after the air exhaust is completed, the box body air exhaust switch is upwards restored to deform so as to seal the air exhaust opening.

The utility model also provides a refrigerator which is provided with the vacuum storage device.

According to the vacuum storage device, the storage box and the air exhaust base are arranged, the microswitch is arranged on the air exhaust base and is electrically connected with the vacuum pump to control the vacuum pump switch, and the vacuum pump is started after the microswitch is triggered, so that the air exhaust control of the storage box is simple.

Furthermore, the vacuum storage device also comprises an air pressure sensing unit which is communicated with the storage space and is arranged opposite to the microswitch, and the air pressure sensing unit moves towards the microswitch to trigger the microswitch by the change of the air pressure in the storage space, so that the switch of the vacuum pump is closely related to the air pressure in the storage space, and the air extraction control is more accurate.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the utility model will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic view of a refrigerator having a vacuum storage apparatus according to an embodiment of the present invention.

Fig. 2 is a schematic view of a door liner and a vacuum storage device of the refrigerator shown in fig. 1.

Fig. 3 is an exploded view of a vacuum storage device according to one embodiment of the present invention.

Fig. 4 is a schematic bottom view of the storage box of the vacuum storage apparatus shown in fig. 3.

Fig. 5 is a schematic sectional view taken along line a-a in fig. 4.

Fig. 6 is an exploded view of the outer shell, the air pressure sensor unit, and the air-extracting switch of the vacuum storage device shown in fig. 3.

FIG. 7 is a top schematic view of the evacuation base of the vacuum storage device shown in FIG. 3.

Fig. 8 is a schematic sectional view taken along line B-B in fig. 7.

FIG. 9 is a perspective view of the evacuation base of the vacuum storage device shown in FIG. 7.

Detailed Description

Fig. 1 is a schematic view of a refrigerator 100 having a vacuum storage device 200 according to an embodiment of the present invention. Fig. 2 is a schematic view of the door liner 120 and the vacuum storage device 200 of the refrigerator 100 shown in fig. 1. Fig. 3 is an exploded schematic view of a vacuum storage device 200 according to one embodiment of the present invention. FIG. 9 is a perspective view of the evacuation base 300 of the vacuum storage device 200 shown in FIG. 7.

The embodiment of the utility model provides a refrigerator 100 which generally comprises a refrigerator body 101, a door body 102 and a vacuum storage device 200. The cabinet 101 defines therein at least one storage compartment, typically a plurality of compartments, such as a refrigerating compartment, a freezing compartment, a temperature-changing compartment, and the like, which is open at a front side. The number and the functions of the specific storage compartments can be configured according to the preset requirements, and the preservation temperature of the refrigerating chamber can be 2-9 ℃ or 4-7 ℃; the preservation temperature of the freezing chamber can be-22 to-14 ℃. The temperature-changing chamber can be adjusted according to the requirement to store proper food or be used as a fresh-keeping storage chamber. In the refrigerator 100 shown in fig. 1, a pivoting door 102 is provided at the front side of the refrigerating chamber, a first drawer 103 is a temperature changing chamber, and a second drawer 104 is a freezing chamber. The storage chamber can be provided with cold energy by a compression refrigeration system. The vacuum storage device 200 is disposed inside the door 102, and the air exhaust base 300 is fixed to the door liner 120 of the door 102. The vacuum storage device 200 can provide a sealed space for precious food materials (such as ginseng, sea cucumber, medlar, tonic materials, seasonings and the like), and vacuumize the sealed space, so that oxidative deterioration is reduced, and the food materials are prevented from being tainted. Meanwhile, the vacuum storage device 200 is arranged on the inner side of the door body 102, so that a user can conveniently take the food at any time without removing the deep part of the box body 101 to take and put the food. As shown in fig. 3, the vacuum storage apparatus 200 according to the embodiment of the present invention generally includes: a storage box 400, an air exhaust base 300, a vacuum pump 302 and a microswitch 305. The storage box 400 defines a storage space 410 therein; the storage box 400 is formed with an air exhaust port 420. The air exhaust base 300 is used for bearing the storage box 400. The vacuum pump 302 is configured to draw some or all of the air within the storage space 410 through the suction port 420. The micro switch 305 is disposed on the pumping base 300 and electrically connected to the vacuum pump 302 such that the micro switch 305 is triggered to turn on the vacuum pump 302. The vacuum storage device 200 of the embodiment of the utility model is provided with the storage box 400 and the air exhaust base 300, the microswitch 305 is arranged on the air exhaust base 300, and the microswitch 305 is electrically connected with the vacuum pump 302 to control the on and off of the vacuum pump 302, so that when the microswitch 305 is triggered, the vacuum pump 302 is started to exhaust air; when the micro switch 305 is not triggered, the vacuum pump 302 does not pump air, so that the air pumping control of the storage box 400 is simple.

In some embodiments, the vacuum storage device 200 of the present embodiments further comprises an air pressure sensing unit 405 disposed in communication with the storage space 410 and disposed opposite the micro switch 305, wherein the air pressure sensing unit 405 is configured to: when the air pressure in the storage space 410 is higher than the preset air pressure value, the air pressure sensing unit 405 moves towards the micro switch 305 and triggers the micro switch 305 to turn on the vacuum pump 302. The preset air pressure value can be a point value or an air pressure range with upper and lower limits. Because the splendid attire in the storing box 400, human factor, and also have the problem that a plurality of factors such as a plurality of storing boxes 400 bleed simultaneously when a base 300 of bleeding sets up a plurality of storing boxes 400 correspondingly and can cause the atmospheric pressure in single storing space 410 can't reach preset atmospheric pressure value, namely ideal atmospheric pressure, through setting up an atmospheric pressure sensing unit 405 with storing space 410 intercommunication, atmospheric pressure sensing unit 405 triggers or does not trigger micro-gap switch 305, make the switch of vacuum pump 302 closely relevant with the atmospheric pressure in storing space 410, the bleed of storing box 400 can not stop before reaching preset atmospheric pressure value, thereby guaranteed the vacuum fresh-keeping effect in the storing space 410, make the control of bleeding more accurate. Meanwhile, the vacuum pump 302 is controlled to be switched on and off through the air pressure sensing unit 405 and the micro switch 305, the air suction time does not need to be calculated, and the control logic is simpler.

In some embodiments, the top wall of the pumping base 300 of the vacuum storage device 200 of the embodiment of the present invention is provided with a through hole 316; the micro switch 305 is disposed in the pumping base 300, and its sensing head portion is disposed opposite to the air pressure sensing unit 405 and exceeds the through hole 316. The contact between the air pressure sensing unit 405 and the micro switch 305 may be vertical contact, front-back contact or left-right contact, and considering the overall aesthetic property of the storage box 400, the vertical contact is preferably adopted, the micro switch 305 is arranged in the air exhaust base 300, and the sensing head part exceeds the through hole 316 of the top wall of the air exhaust base 300.

In some embodiments, an air pressure sensing cavity (not numbered) is formed at a position corresponding to the through hole 316 at the bottom of the storage box 400 of the vacuum storage device 200 according to the embodiment of the present invention, wherein a top wall of the air pressure sensing cavity is opened with a first through hole 421 communicating with the storage space 410, and a bottom wall of the air pressure sensing cavity is opened with a second through hole 422 communicating with the outside. The air pressure sensing unit 405 includes a flexible deformation member 451 disposed in the air pressure sensing chamber, so that when the air pressure in the storage space 410 is higher than a predetermined air pressure value, at least a portion of the flexible deformation member 451 protrudes from the second through hole 422 to trigger the micro switch 305.

Fig. 4 is a bottom view schematically illustrating the storage box 400 of the vacuum storage device 200 shown in fig. 3. Fig. 5 is a schematic sectional view taken along line a-a in fig. 4. Fig. 6 is an exploded view of the outer shell 402, the air pressure sensing unit 405, and the air pump switch 404 of the vacuum storage device 200 shown in fig. 3. FIG. 7 is a top view of the evacuation base 300 of the vacuum storage device 200 shown in FIG. 3. Fig. 8 is a schematic sectional view taken along line B-B in fig. 7.

The storage box 400 of the embodiment of the utility model comprises an inner box body 401 and an outer box body 402, wherein a storage space 410 is defined in the inner box body 401; the outer shell 402 is sleeved outside the inner shell 401 and has a gap 403 with the inner shell 401, an air pumping hole 420 and an air pressure sensing cavity are formed on the outer shell 402, and the vacuum pump 302 pumps out part or all of the air in the storage space 410 through the air pumping hole 420 and the gap 403 in sequence. The storage box 400 of the embodiment of the utility model comprises an inner box body 401 and an outer box body 402, wherein the outer box body 402 is sleeved outside the inner box body 401, a gap 403 is formed between the outer box body 402 and the inner box body 401, and an air pumping hole 420 is formed on the outer box body 402, so that a vacuum pump 302 pumps part or all of air in a storage space 410 through the air pumping hole 420 and the gap 403 in sequence, and the phenomenon that the air pumping hole 420 is blocked due to falling of food materials in the storage space 410 is avoided; meanwhile, the vacuum preservation effect of the double-layer box body is better than that of the single-layer box body. As shown in fig. 3, the storage case 400 includes a case portion 406 and a cover 500, the case portion 406 includes an inner case 401 and an outer case 402, and the cover 500 is used to seal the case portion 406. The first through hole 421 communicates with the gap 403. The outer shell 402 and the inner shell 401 may be detachable structures. A protrusion may be formed at the outer side of the upper portion of the inner case 401 so that the inner case 401 does not shake at the outer case 402.

In some embodiments, the pumping base 300 of the present invention is formed with a first pumping port 310. The air exhaust base 300 defines a receiving space therein, the vacuum pump 302 is disposed in the receiving space, and the vacuum pump 302 exhausts part or all of the air in the storage space 410 through the first air exhaust opening 310, the air exhaust opening 420 and the gap 403 in sequence. By disposing the vacuum pump 302 in the pumping base 300, the pumping components are integrated, and the assembly of the vacuum pump 302 is more convenient.

In some embodiments, the storage cassette 400 of embodiments of the present invention is configured to be removably secured to the evacuation base 300. Configure into detachably through storing box 400 and bleed base 300 and fix mutually for can conveniently access food material to storing box 400, promote user's use and experience.

As shown in fig. 5 and 6, the air pressure sensing unit 405 according to the embodiment of the present invention further includes a spring 452 interposed between the first through hole 421 and the flexible deformation member 451. The flexible deforming member 451 may include: a deformable portion 4511, a fixing portion 4512 and a guide 4513, wherein the deformable portion 4511 is disposed at the second through hole 422, the fixing portion 4512 extends outward from a periphery of the deformable portion 4511, and the guide 4513 extends from the deformable portion 4511 to a side away from the second through hole 422; the spring 452 is sleeved outside the guide portion 4513. Through setting up spring 452, can make storing box 400 break away from when bleeding base 300, second through-hole 422 is by inseparable sealed, avoids storing box 400 to appear leaking gas in second through-hole 422 department. The flexible deformable member 451 is held within the air pressure sensing chamber by the fixing portion 4512. The guide 4513 provides a guide for the up-and-down movement of the spring 452. When the air pressure in the storage space 410 is higher than the preset air pressure value, the deformation part 4511 of the flexible deformation member 451 deforms downward, protrudes out of the second through hole 422, contacts with the micro switch 305, triggers the micro switch 305, and the vacuum pump 302 starts to pump air. When the air pressure in the storage space 410 is lower than the preset air pressure value, the flexible deformation member 451 is subjected to the difference between the internal air pressure and the external air pressure to deform the deformation portion 4511 upward, and does not protrude out of the second through hole 422, and meanwhile, the spring 452 is compressed, so that the air pressure sensing unit 405 moves upward as a whole. At this time, the microswitch 305 and the air pressure sensing unit 405 are no longer in contact, and the air suction is stopped. After a period of time, if air leaks from the storage box 400, the deformation portion 4511 protrudes out of the second through hole 422 again, and when the deformation portion 4511 contacts the micro switch 305, the vacuum pump 302 is turned on again to evacuate, so as to ensure that the air pressure in the storage box 400 is always within the required air pressure range.

As shown in FIG. 8, in some embodiments, a first pumping port 310 is formed in a top wall of the pumping base 300 according to embodiments of the present invention. The vacuum storage device 200 further includes: a base suction switch 303 disposed at the first suction port 310 and configured to: the storage box 400 is placed at the first pumping hole 310, and the base pumping switch 303 moves downwards under the action of gravity of the storage box 400 and forms a pumping channel with the first pumping hole 310; the storage box 400 is removed from the suction base 300, and the base suction switch 303 moves upward and closes the first suction port 310. As shown in fig. 3, 8 and 9, the air extracting base 300 includes a base 301, a plurality of openings are formed on the base 301, a placing plate 311 is disposed at each opening, a first air extracting opening 310 and a micro switch 305 are formed on each placing plate 311, and a storage box 400 is correspondingly disposed. The main body portion of the microswitch 305 is fixed below the placing plate 311 with a fixing bracket 350. According to the air extraction base 300 of the embodiment of the utility model, the base air extraction switch 303 is configured to form the air extraction channel with the first air extraction opening 310 based on the gravity action of the storage box 400 when the storage box 400 is placed at the first air extraction opening 310, and after the storage box 400 is removed, the base air extraction switch 303 moves upwards to seal the first air extraction opening 310, so that the opening and sealing structure of the first air extraction opening 310 of the air extraction base 300 is ingenious, the opening and sealing of the first air extraction opening 310 are associated with the placement of the storage box 400, the problem that when the storage box 400 is not placed, the first air extraction opening 310 is exposed to cause impurities such as particles to enter the air extraction base 300 can be avoided, and the internal cleanliness of the air extraction base 300 can be kept for a long time.

Referring to FIG. 8, the base suction switch 303 of an embodiment of the present invention comprises: a valve body 331, a first spring 332, and a seal ring 333; wherein the valve body 331 has a horizontal portion 3311 and a vertical portion 3312 downwardly extending from the horizontal portion 3311, the vertical portion 3312 of the valve body 331 being disposed through the first pumping hole 310, having an outer diameter smaller than an inner diameter of the first pumping hole 310 and having an annular groove (not numbered) formed at a lower portion thereof; the first spring 332 is sleeved outside the vertical portion 3312 of the valve body 331 and clamped between the horizontal portion 3311 of the valve body 331 and the top wall of the pumping base 300; the sealing ring 333 is sleeved in the annular groove and has an outer diameter larger than the inner diameter of the first pumping hole 310. When the storage box 400 is placed in the air exhaust base 300, when the valve body 331 of the base air exhaust switch 303 moves downward under the action of the gravity of the storage box 400, the first spring 332 is compressed, the sealing ring 333 moves downward, the first air exhaust opening 310 is opened, and the outer diameter of the vertical portion 3312 is smaller than the inner diameter of the first air exhaust opening 310 so that an air exhaust passage is formed between the vertical portion 3312 and the first air exhaust opening 310; when the storage box 400 is moved out of the air exhaust base 300, the first spring 332 is deformed upwards, the sealing ring 333 moves upwards to seal a gap between the first air exhaust port 310 and the vertical portion 3312, and the first air exhaust port 310 is closed. The placing plate 311 is further extended upward outside the first pumping hole 310 to form an annular rib 312, and the base pumping switch 303 is fitted in a space defined by the annular rib 312 and the placing plate 311. In addition, a sealing ring 315 is disposed outside the annular rib 312 to seal the outer shell 402 with the interface portion of the pumping base 300.

With continued reference to FIG. 8, the pumping base 300 of an embodiment of the present invention further comprises: the air pumping box 304 is arranged in the base body 301 and buckled below the first air pumping port 310, a butt joint 341 is formed on the air pumping box 304, and a second air pumping port 340 is formed on the butt joint 341; the vacuum pump 302 is connected to the docking head 341 via a suction line (not shown). By providing the pumping box 304, the connection of the vacuum pump 302 to the first pumping port 310 can be made easier.

An overpressure air release opening 342 is also formed in the bottom wall of the air exhaust box 304; a second spring 343 and a sealing gasket 344 are further arranged in the air pumping box 304, wherein the sealing gasket 344 is arranged at the overpressure air release opening 342, one end of the second spring 343 abuts against the top wall of the air pumping box 304, and the other end abuts against the sealing gasket 344. Through set up the disappointing mouth 342 of superpressure on the diapire of the box 304 of bleeding, can protect each partial structure and components and parts of vacuum storing device 200, control atmospheric pressure is stable, avoids the too big problem of negative pressure that meets when storing box 400 bleeds. Specifically, when the air pressure in the air exhaust box 304 is smaller than the rated air pressure, the second spring 343 is moved upward by the external atmospheric pressure together with the sealing gasket 344, and the overpressure air release opening 342 is opened, so that the inside of the air exhaust box 304 is communicated with the external air, the air pressure in the air exhaust box 304 is not reduced, and the problem of overlarge air exhaust negative pressure in the storage box 400 is avoided.

As shown in fig. 5, in some embodiments, the bottom wall of the outer shell 402 of the storage box 400 according to the embodiment of the present invention is provided with an air exhaust opening 420. The vacuum storage device 200 further includes: a box air-extracting switch 404 disposed at the air-extracting opening 420, wherein the box air-extracting switch 404 is an elastic member and configured to: the vacuum pump 302 is turned on, and the box body air-extracting switch 404 moves downwards under the suction force to form an air-extracting channel with the air-extracting opening 420; after the air extraction is completed, the box air extraction switch 404 is deformed upwards and closes the air extraction opening 420. Through setting up box body air bleed switch 404, can be so that after the completion of bleeding, the extraction opening 420 of storing box 400 can keep sealed, and the user can continue to place storing box 400 on the base 300 of bleeding, also can be with other spaces that storing box 400 put into refrigerator 100, perhaps place storing box 400 outside refrigerator 100, and storing box 400 still can keep vacuum state for vacuum storing device 200 has multiple application mode. Referring to fig. 5 and 6, the cassette suction switch 404 may have a vertical portion 441, a plurality of first horizontal portions 442 and a second horizontal portion 443, wherein the vertical portion 441 of the cassette suction switch 404 is disposed through the suction opening 420 and has an outer diameter smaller than an inner diameter of the suction opening 420, one end of the vertical portion located inside the outer case 402 is provided with the plurality of first horizontal portions 442 at intervals along a circumferential direction thereof, and one end of the vertical portion located outside the outer case 402 is provided with the second horizontal portion 443. When the storage box 400 is placed in the air extraction base 300, the vacuum pump 302 is turned on, the box air extraction switch 404 integrally moves downwards, an air extraction channel is formed between the vertical part 441 of the box air extraction switch 404 and the air extraction opening 420, and the air extraction opening 420 is opened; after the air extraction is completed, the negative pressure in the air extraction base 300 disappears, so that the second horizontal portion 443 can be tightly attached to the outer box 402 by the negative pressure in the storage box 400, thereby achieving a sealing effect.

In the description of the present embodiment, it should be understood that, for the vacuum storage device 200, the terms "upper", "lower", "front", "rear", "left", "right", etc. indicate the orientation or positional relationship with reference to the orientation or positional relationship shown in fig. 3. And it is only for convenience in describing the utility model and simplicity in description and is not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation and is therefore not to be construed as limiting the utility model.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the utility model have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the utility model may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the utility model. Accordingly, the scope of the utility model should be understood and interpreted to cover all such other variations or modifications.

Claims

1. A vacuum storage device, comprising:

the air exhaust base is used for bearing the storage box;

and the microswitch is arranged on the air exhaust base and is electrically connected with the vacuum pump so that the microswitch is triggered to start the vacuum pump.

2. The vacuum storage device of claim 1, further comprising:

an air pressure sensing unit disposed in communication with the storage space and disposed opposite to the micro switch, wherein the air pressure sensing unit is configured to: the air pressure in the storage space is higher than a preset air pressure value, and the air pressure sensing unit moves towards the micro switch and triggers the micro switch to enable the vacuum pump to be started.

3. The vacuum storage device of claim 2,

the top wall of the air exhaust base is provided with a through hole;

the micro switch is arranged in the air exhaust base, and the sensing head of the micro switch exceeds the through hole and is arranged opposite to the air pressure sensing unit.

4. The vacuum storage device of claim 3,

an air pressure sensing cavity is formed at the bottom of the storage box corresponding to the through hole, wherein a first through hole communicated with the storage space is formed in the top wall of the air pressure sensing cavity, and a second through hole communicated with the outside is formed in the bottom wall of the air pressure sensing cavity;

5. The vacuum storage device of claim 4,

the air pressure sensing unit further comprises a spring which is clamped between the first through hole and the flexible deformation piece.

6. The vacuum storage device of claim 5,

the flexible deformation member includes: the deformation part is arranged at the second through hole, the fixing part extends outwards from the periphery of the deformation part, and the guide part extends from the deformation part to one side far away from the second through hole;

the spring is sleeved outside the guide part.

7. The vacuum storage device of claim 4,

the storage box comprises an inner box body and an outer box body, wherein

The inner box body is internally provided with the storage space;

the outer box body is sleeved outside the inner box body and a gap is formed between the inner box body and the outer box body, the air pumping port and the air pressure sensing cavity are formed in the outer box body, and the vacuum pump sequentially passes through the air pumping port and the gap to pump out part or all of air in the storage space.

8. The vacuum storage device of claim 7,

a first air exhaust opening is formed in the air exhaust base;

an accommodating space is defined in the air exhaust base, the vacuum pump is arranged in the accommodating space and sequentially exhausts part or all of air in the storage space through the first air exhaust port, the air exhaust port and the gap.

9. The vacuum storage device of claim 8,

the top wall of the air exhaust base is provided with the first air exhaust opening, and the bottom wall of the outer box body is provided with the air exhaust opening;

the vacuum storage device further comprises:

the base air exhaust switch is arranged at the first air exhaust opening and is configured into: when the storage box is placed to the first air exhaust opening, the base air exhaust switch moves downwards under the action of gravity of the storage box and forms an air exhaust channel with the first air exhaust opening; removing the storage box, and moving the base air extraction switch upwards and sealing the first air extraction opening; and/or

A box body air extraction switch arranged at the air extraction opening, wherein the box body air extraction switch is an elastic piece and is configured into: the vacuum pump is started, and the box body air extraction switch moves downwards under the suction force to form an air extraction channel with the air extraction opening; and after air exhaust is finished, the box body air exhaust switch is upwards restored to deform so as to seal the air exhaust opening.

10. A refrigerator characterized by having a vacuum storage device according to any one of claims 1 to 9.