CN113203236A

CN113203236A - A kind of refrigerator

Info

Publication number: CN113203236A
Application number: CN202110419926.4A
Authority: CN
Inventors: 张秋菊; 蒋文静; 张向平; 王俊玲
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-08-03
Anticipated expiration: 2041-04-19
Also published as: CN113203236B

Abstract

The invention discloses a refrigerator, wherein a shelf is arranged on the inner container side of a door body, a first vacuumizing interface part is arranged on the shelf and is connected with a vacuum pump through a pipeline, a preservation box is placed on the shelf, a second vacuumizing interface part is arranged on the preservation box and is connected with the first vacuumizing interface part, and the vacuum pump vacuumizes the preservation box. The shelf has integrated the evacuation function, and the product structure is more compact, avoids evacuating device to expose, reduces evacuating device's occupation space, improves the convenience of evacuation operation.

Description

A kind of refrigerator

Technical Field

The invention relates to the technical field of refrigeration equipment, in particular to a refrigerator with a vacuum refreshing device.

Background

In recent years, people's health consciousness is gradually improved, and the demand for food material preservation is also improved, so that the refrigerator is used as the most common household appliance for storing food materials, and the food material preservation storage becomes a technical demand to be solved urgently in the field of refrigerators.

At present, different preservation technologies are introduced by various manufacturers aiming at the problem of food material preservation and storage. For example, in the vacuum preservation technology, the food deterioration condition is changed in the vacuum state. Firstly, in a vacuum environment, microorganisms and various promoting enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time; secondly, under the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions can not be completed, the food can not be oxidized, and the food can be preserved for a long time.

The vacuum preservation technology applied to the refrigerator at present mainly comprises the steps that a sealed drawer is arranged in the refrigerator, and the drawer is vacuumized through a small vacuum pump arranged outside the drawer, so that the drawer is kept in a negative pressure state, and the preservation of food materials in the drawer is realized. This preservation method has the following limitations: 1. because the vacuum pumping treatment is realized by a vacuum pump, the vacuum pump can occupy part of the storage space of the refrigerating chamber; 2. the drawer is required to be sealed in the fresh-keeping mode, otherwise, the vacuum state cannot be formed in the drawer, and therefore higher requirements are provided for the forming and assembling processes of the drawer; 3. the drawer belongs to an inherent part in the refrigerator, and the drawer can not be taken out of the refrigerator for random transportation, so that the drawer is inconvenient for the transportation and the use of vacuum fresh-keeping articles.

In order to solve a series of problems generated by vacuumizing and refreshing by using a drawer, the applicant previously applied a related patent in which a refreshing box is arranged on the side of a door body inner container, the side of the door body inner container is provided with a base, the refreshing box is placed on the base, the side of the door body inner container is also provided with a vacuumizing connector device, and the vacuumizing connector device is communicated with a vacuumizing interface at the top of the refreshing box so as to vacuumize the refreshing box. During operation, after the preservation box is placed on the base, the vacuumizing connector device and the preservation box vacuumizing interface are required to be manually connected. When taking the crisper off the base, the vacuum-pumping connector device still needs to be manually removed from the crisper, and the crisper can be taken away.

The applicant further develops and develops the technical route of arranging the preservation box at the inner container side of the door body, and really from the use angle of users, the scheme still has a space for further improving the improvement, so that the use convenience of the users is further improved, and the space occupied by the vacuumizing joint device is reduced.

The above information disclosed in this background section is only for enhancement of understanding of the background of the application and therefore it may comprise prior art that does not constitute known to a person of ordinary skill in the art.

Disclosure of Invention

In view of the above, the invention provides a refrigerator, in which a shelf on the inner container side of a door body has a vacuumizing function, so that a preservation box placed on the shelf can be directly vacuumized, the operation convenience is improved, and meanwhile, the space on the inner container side of the door body occupied by a vacuumizing connector device is reduced, so that the structure on the inner container side of the door body is more compact.

In order to realize the purpose of the invention, the invention is realized by adopting the following technical scheme:

in some embodiments of the present application, there is provided a refrigerator including:

a storage chamber;

a door for opening or closing the storage chamber;

the rack is arranged on the inner container side of the door body, a first vacuumizing interface part is arranged on the rack and is connected with a vacuum pump through a pipeline;

the preservation box is placed on the shelf, a second vacuumizing interface part is arranged on the preservation box, the first vacuumizing interface part is connected with the second vacuumizing interface part, and the vacuum pump vacuumizes the preservation box.

In some embodiments of the present application, the shelf includes a bottom cavity, the preservation box is placed on a top plate enclosing the bottom cavity, the first vacuum-pumping interface part is arranged in the bottom cavity, and the second vacuum-pumping interface part is arranged at the bottom of the preservation box.

In some embodiments of the present application, a plurality of first vacuum interfaces are disposed in the bottom cavity, and a plurality of crispers can be disposed on the top plate.

In some embodiments of this application, be equipped with the curb plate around the bottom chamber, the curb plate with the connection can be dismantled to the inner bag of the door body, four the curb plate with the roof encloses into being used for placing the standing groove of crisper.

In some embodiments of this application, the shelf still includes the infrabasal plate, four curb plate integrated into one piece in around the infrabasal plate, the infrabasal plate constitutes the bottom surface of bottom chamber, first evacuation interface part is located on the infrabasal plate, be equipped with the supporting part on the infrabasal plate, the supporting part with the roof supports and leans on.

In some embodiments of the present application, a first circumferential protrusion is integrally formed on the inner bottom plate;

the first vacuumizing interface part is provided with a second circumferential bulge and a third circumferential bulge which extend towards the inner bottom plate, the third circumferential bulge is positioned on the inner circumferential side of the second circumferential bulge, a vacuumizing hole is arranged in a space surrounded by the third circumferential bulge, the third circumferential bulge is positioned on the outer circumference of the first circumferential bulge, a pipeline joint is arranged on the third circumferential bulge, a pipeline connected with the vacuum pump is connected into the pipeline joint, the pipeline is led out from the bottom cavity, and the second circumferential bulge is connected with the inner bottom plate;

the top of the first vacuumizing connector is provided with an annular soft rubber part, the soft rubber part is exposed out of the top plate, and the soft rubber part is connected with the second vacuumizing connector.

In some embodiments of the present application, a first clamping portion is disposed on the inner bottom plate, a second clamping portion is correspondingly disposed on the second circumferential protrusion, and the first clamping portion is connected to the second clamping portion;

the inner bottom plate is integrally formed with a plurality of mounting holes, the mounting holes surround the periphery of the first circumferential protrusion, a plurality of mounting columns are arranged on the first vacuumizing interface portion and located between the second circumferential protrusion and the third circumferential protrusion, and the mounting columns are correspondingly connected with the mounting holes.

In some embodiments of the present application, a plurality of support pillars are integrally formed on the inner bottom plate, a plurality of openings are correspondingly formed on the top plate, and tops of the support pillars are exposed from the openings;

bottom of preservation box is equipped with the footing, the footing is located on the support column.

In some embodiments of the present application, the bottom of interior bottom plate still is equipped with outer bottom plate, interior bottom plate outer bottom plate and four the curb plate encloses into walking line maintenance cavity.

In some embodiments of the present application, a switch for controlling the vacuum pump to start and stop is arranged on the shelf, and a line connected to the switch is led out from the routing maintenance cavity.

Compared with the prior art, the invention has the advantages and positive effects that:

in the refrigerator disclosed in this application, after placing the crisper on the shelf of the door body, first evacuation interface portion on the shelf is connected with the second evacuation interface portion on the crisper, and the vacuum pump is opened, can carry out the evacuation to the crisper to reach the low pressure environment that is fit for eating the material fresh-keeping storage in making the crisper.

This application is integrated as an organic whole structure with first evacuation interface part and shelf, and the shelf is used for placing the crisper on the one hand, and on the other hand can carry out the evacuation to the crisper again, and multi-functional integration has following advantage:

in terms of structure, the overall structure is more compact, and an installation space does not need to be additionally arranged for the first vacuumizing connector at other positions of the inner container of the door body, so that the occupied space is reduced;

in terms of use, the preservation box is placed on the shelf, and the switch is turned on, so that the preservation box can be vacuumized, and the operation process of manually connecting the first vacuumizing interface part with the preservation box is omitted; when the preservation box needs to be taken down from the shelf, the preservation box can be separated from the first vacuumizing connector by directly taking the preservation box away, so that the operation process of manually separating the first vacuumizing connector from the preservation box is omitted; therefore, the whole operation process is more convenient and faster, and the use experience of a user is improved;

from the aspect of product appearance, the first vacuumizing interface part is not exposed, the whole vacuumizing system is in a hidden state, only the door body inner container, the storage rack and the preservation box are arranged in front of a user, the product appearance is simpler, and the product grade is improved.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural view of a refrigerator according to an embodiment;

FIG. 2 is a schematic structural diagram of a door body and a shelf according to an embodiment;

FIG. 3 is a schematic view of the structure of FIG. 2 viewed from the backside;

FIG. 4 is a schematic structural diagram of a shelf according to an embodiment;

FIG. 5 is a schematic diagram of a shelf according to an embodiment with a top panel omitted;

fig. 6 is a schematic structural view of a shelf according to an embodiment, as viewed from the bottom;

FIG. 7 is a cross-sectional view of the shelf mated with the crisper, under an embodiment;

FIG. 8 is a schematic structural view of a crisper according to an embodiment;

fig. 9 is a cross-sectional view of a crisper according to an embodiment.

Reference numerals:

100-storage room, 110-freezer, 120-refrigerator;

200-a door body, 210-a door body shell, 220-an inner container, 221-a second clamping part, 230-an upper end cover, 240-a lower end cover, 250-an installation base and 260-a positioning block;

300-shelf, 310-bottom cavity, 320-routing maintenance cavity, 330-inner bottom plate, 331-mounting groove, 332-routing groove, 333-supporting column, 334-supporting part, 335-first circumferential projection, 336-mounting hole, 340-side plate, 341-first clamping part, 350-top plate, 351-opening hole and 360-outer bottom plate;

400-fresh-keeping box, 410-upper cover, 420-box body, 430-bottom foot;

500-a first vacuum-pumping interface part, 510-a second circumferential projection, 520-a third circumferential projection, 530-a vacuum-pumping hole, 540-a soft rubber part, 550-a mounting column, 560-a pipeline joint;

600-a second vacuum interface part, 611-a first protruding ring part, 612-a second protruding ring part, 613-a third protruding ring part, 614-a fourth protruding ring part, 620-a first pressure relief valve, 621-a first circumferential extension, 622-a second circumferential extension, 630-a first through hole;

700-pressure relief part, 711-fifth bulge loop part, 712-sixth bulge loop part, 713-seventh bulge loop part, 720-second pressure relief valve, 721-third circumferential extension part, 722-fourth circumferential extension part, 730-second through hole;

810-vacuum pump, 820-pipeline, 830-switch, 840-control board, 850-wire.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

[ basic operation principle of refrigerator ]

Fig. 1 is a perspective view of an embodiment of a refrigerator of the present application, the refrigerator of the present embodiment having an approximately rectangular parallelepiped shape. The refrigerator has an external appearance defined by a storage chamber 100 defining a storage space, and a plurality of door bodies 200 disposed in the storage chamber 100, wherein the door bodies 200 include a door body outer case 210 located outside the storage chamber 100, a door body inner container 220 located inside the storage chamber 100, an upper end cover 230, a lower end cover 240, and a foaming layer located between the door body outer case 210, the door body inner container 220, the upper end cover 230, and the lower end cover 240.

The storage chamber 100 has an open cabinet 300, and the storage chamber 100 is vertically partitioned into a lower freezer compartment 110 and an upper refrigerator compartment 120. Each of the partitioned spaces may have an independent storage space. In detail, the freezing compartment 110 is located at a lower side of the storage compartment 100 and may be selectively covered by a drawer type freezing compartment door. The space above the freezing chamber 110 is partitioned into left and right sides to form the refrigerating chamber 120, respectively, and the refrigerating chamber 120 may be selectively opened or closed by a refrigerating chamber door body pivotably mounted on the refrigerating chamber 120.

The refrigerator is provided with a vacuumizing device, the vacuumizing device comprises a vacuum pump and a vacuumizing connector, the vacuum pump is connected with the vacuumizing connector through a pipeline, and the vacuumizing connector is in butt joint with a container to be vacuumized, so that the container can be vacuumized.

[ shelf and preservation case ]

Referring to fig. 1 and 2, a shelf 300 is disposed on the door liner 220, a first vacuum interface 500 (i.e., the above-mentioned vacuum connector) is disposed on the shelf 300, and the first vacuum interface 500 is connected to a vacuum pump 810 through a pipeline 820.

The preservation box 400 is placed on the shelf 300, and the preservation box 400 is used for providing a low-pressure environment for food materials to be preserved and stored.

The preservation box 400 is provided with a second vacuum interface 600.

After the preservation box 400 is placed on the shelf 300, the first vacuumizing interface 500 is connected with the second vacuumizing interface 600, and the vacuum pump 810 is turned on, so that the preservation box 400 can be vacuumized, and a low-pressure environment suitable for food material preservation and storage is achieved in the preservation box 400.

This application is with first evacuation interface part 500 and the integrated structure of shelf 300, and shelf 300 is used for placing crisper 400 on the one hand, and on the other hand can carry out the evacuation to crisper 400 again, and is multi-functional integrated, has following advantage:

structurally, the overall structure is more compact, and an additional installation space for the first vacuum-pumping interface part 500 is not required to be arranged at other positions of the door body liner 220, so that the occupied space is reduced;

in terms of use, the preservation box 400 is placed on the shelf 300, and the switch is turned on, so that the preservation box 400 can be vacuumized, and compared with a structure that the first vacuumizing connector is arranged on the inner container of the door body, the operation process that the first vacuumizing connector 500 is manually connected with the preservation box 400 is omitted; when the preservation box 400 needs to be taken down from the shelf 300, the preservation box 400 can be separated from the first vacuumizing interface part 500 by directly taking the preservation box 400 away, and the operation process of manually separating the first vacuumizing interface part 500 from the preservation box 400 is omitted; therefore, the whole operation process is more convenient and faster, and the use experience of a user is improved;

in terms of product appearance, the first vacuumizing interface 500 is not exposed, the whole vacuumizing system is in a hidden state, only the door body liner 220, the shelf 300 and the preservation box 400 are arranged in front of a user, the product appearance is simpler, and the product grade is improved.

The installation position of the vacuum pump 810 is not specifically limited in this embodiment, and the vacuum pump 810 may be disposed at any position of the door 200, or may be disposed at an equal position on the box 300.

In this embodiment, referring to fig. 3, the vacuum pump 810 is disposed on the upper end cap 230 of the door body, and makes full use of the space at the upper end cap 230 of the door body.

With continued reference to fig. 3, the conduit connecting the vacuum pump 810 and the first vacuum interface 500 extends within the foam layer of the door body and is fixed by the positioning block 260.

The installation base 250 is arranged in the foaming layer of the door body, the pipeline 820 is of a multi-section structure, a first section of pipeline is arranged between the first vacuumizing connector part 500 and the installation base 250, a second section of pipeline is arranged inside the installation base 250, a third section of pipeline is arranged between the installation base 250 and the vacuum pump 810, and the three sections of pipelines are sequentially connected.

The segmented pipeline structure facilitates installation and maintenance of the pipeline.

For the specific structure of the mounting base 250, reference may be made to the prior application of the present applicant, and the description of the present embodiment is omitted.

In some embodiments of the present application, the first vacuum interface 500 is disposed at the bottom of the shelf 300, and the second vacuum interface 600 is disposed at the bottom of the preservation box 400, so that when the preservation box 400 is placed on the shelf 300, the first vacuum interface 500 and the second vacuum interface 600 are directly communicated with each other, and the connection is convenient and reliable.

In other embodiments, the first vacuum interface 500 may be disposed at a side of the shelf 300, and correspondingly, the second vacuum interface 600 is disposed at a side of the fresh food box 400, so that the first vacuum interface 500 and the second vacuum interface 600 are laterally connected, and the vacuum operation of the fresh food box 400 can be realized.

[ shelf ]

Referring to fig. 4, 5 and 8, the shelf 300 includes a bottom cavity 310, and the first vacuum interface 500 is disposed in the bottom cavity 310, which corresponds to the bottom cavity 310 providing a mounting space for the first vacuum interface 500.

The crisper 400 is placed on a top plate 350 that defines a bottom cavity 310, and a top portion of the first vacuum interface 500 is exposed from the top plate 350 to interface with a second vacuum interface 600 at a bottom portion of the crisper 400.

In some embodiments of the present application, a side plate 340 is disposed around the bottom cavity 310, and the side plate 340 is detachably connected to the inner container 220 of the door body.

Be equipped with first joint portion 341 on controlling two relative curb plates 340, corresponding, be equipped with second joint portion 221 on two relative side frames about door body inner bag 220, through the joint of dismantling between first joint portion 341 and the second joint portion 221, realize the demountable installation of shelf 300, the regulation and the dismouting of the shelf 300 height of being convenient for.

For the specific structures of the first clamping portion 341 and the second clamping portion 221, reference may be made to the previous application of the present application, and details are not described in this embodiment.

The four side plates 340 and the top plate 350 enclose a placing groove for placing the preservation box 400, stability after the preservation box 400 is placed is improved, and dropping is avoided.

In some embodiments of the present application, the shelf 300 further includes an interior base 330, and four side panels 340 are integrally formed around the interior base 330. The inner base plate 330 defines a bottom surface of the bottom chamber 310, the top plate 350 defines a top surface of the bottom chamber 310, and the first vacuum interface portion 500 is disposed on the inner base plate 330.

The top plate 350 and the four side plates 340 are movably connected, for example, clamped, and when the first vacuum interface 500 needs to be maintained, the top plate 350 is taken out, so that the whole first vacuum interface 500 is exposed, and the maintenance is facilitated.

Referring to fig. 5, the support portion 334 is disposed on the inner bottom plate 330, the support portion 334 abuts against the top plate 350, so as to improve the installation reliability of the top plate 350, and the support portion 334 also contributes to improving the structural strength of the inner bottom plate 330.

In this embodiment, the supporting portion 334 is a plurality of supporting rib structures arranged at intervals.

In some embodiments of the present application, referring to FIG. 8, a first circumferential protrusion 335 is integrally formed on the inner chassis 330.

First vacuum interface portion 500 has a second circumferential projection 510 and a third circumferential projection 520 extending toward the interior base plate, third circumferential projection 520 is located on the inner peripheral side of second circumferential projection 510, vacuum holes 530 are provided in the space surrounded by third circumferential projection 520, and third circumferential projection 520 is located on the outer periphery of first circumferential projection 335.

The third circumferential protrusion 520 is provided with a pipe joint 560, and a pipe 820 connected to the vacuum pump 810 is connected to the pipe joint 560.

The pipeline 820 is led out from the bottom cavity 310, an opening is arranged on the side plate 340 positioned at the back side, and the pipeline 820 is led out from the opening, enters the mounting base 250 and is led to the vacuum pump 810.

The second circumferential projection 510 is connected to the inner bottom plate 330, and the reliability of the connection of the first vacuum inlet port 500 as a whole is improved.

The top of the first vacuum-pumping interface 500 is provided with an annular soft rubber part 540, the soft rubber part 540 is exposed from the top plate 350, and the soft rubber part 540 is in sealed butt joint with the second vacuum-pumping interface 600. The soft rubber part 540 can perform better butt joint and sealing functions with the second vacuum-pumping interface part 600.

The soft rubber part 540 and the top of the first vacuum-pumping interface part 500 are in an insertion structure, so that the installation is convenient.

With respect to the specific mounting arrangement between the first vacuum interface 500 and the inner base plate 330, in some embodiments, a plurality of mounting holes 336 are integrally formed in the inner base plate 330, and the plurality of mounting holes 336 uniformly surround the outer periphery of the first circumferential protrusion 335. A plurality of mounting posts 550 are provided on first vacuum interface portion 500, and mounting posts 550 are positioned between second circumferential projection 510 and third circumferential projection 520. The plurality of mounting posts 550 and the plurality of mounting holes 336 are fixedly connected by screws, thereby fixedly mounting the first vacuum interface 500.

The inner bottom plate 330 is provided with a first clamping portion (not shown, specifically a buckle), the second circumferential protrusion 510 is correspondingly provided with a second clamping portion (not shown, specifically a bayonet), and the first clamping portion is connected with the second clamping portion.

During installation, the first clamping portion and the second clamping portion are clamped, pre-positioning between the first vacuumizing interface portion 500 and the inner bottom plate 330 is achieved, and then the mounting columns 550 are correspondingly connected with the mounting holes 336 through screws, so that installation is facilitated.

The mounting hole 336 is a counter bore recessed towards the bottom cavity 310, a screw is arranged between the mounting hole 336 and the mounting column 550, and the screw is located in the counter bore to avoid the screw from being exposed.

A plurality of positioning insertion posts (not shown) are integrally formed on the inner bottom plate 330, positioning insertion holes (not shown) are formed at the top ends of the positioning insertion posts, a plurality of positioning posts (not shown) are correspondingly arranged on the first vacuum pumping interface part 500, the positioning posts are arranged between the second circumferential protrusion 510 and the third circumferential protrusion 520, and the plurality of positioning posts are correspondingly inserted into the plurality of positioning insertion holes, so that the connection reliability of the first vacuum pumping interface part 500 is further improved.

In some embodiments of the present application, referring to fig. 8, an outer bottom plate 360 is further disposed at the bottom of the inner bottom plate 330, the outer bottom plate 360 and the four side plates 340 enclose a routing maintenance cavity 320, and the routing maintenance cavity 320 is located at the bottom of the bottom cavity 310.

The shelf 300 is provided with a switch 830 for controlling the on/off of the vacuum pump 810, and a wire 850 connected with the switch 830 is led out from the wire maintenance cavity 320.

The mounting hole 336 with the counter sink structure can prevent the screw from extending into the wire routing maintenance cavity 320 to affect the wire routing.

Thus, the vacuumized pipeline 820 and the wires 850 used for control are arranged in a partitioning mode, the pipeline 820 and the wires 850 are prevented from being staggered and disordered, the pipeline 820 and the wires 850 are convenient to maintain in a partitioning pipeline running mode, and the internal structure is more regular.

When maintenance of the first vacuum interface 500 and the conduit 820 is required, the top plate 350 is removed from the top and maintenance is performed from the top 350.

When the switch 830, the wire 850, and the like need to be repaired, the outer bottom plate 360 is detached from the bottom, and the repair can be performed from the bottom.

The bottom cavity 310 and the trace maintenance cavity 320 are partitioned and distributed separately from each other to better realize the respective functions.

In this embodiment, the switch 830 is disposed on the side plate 340 at the front side for the user to operate.

Referring to fig. 6, a mounting groove 331 is formed on the inner bottom plate 330 facing the routing maintenance cavity 320, and a control board 840 connected to the switch 830 is disposed in the mounting groove 331, so as to provide a mounting space for the switch 830 and the control board 840.

The wiring groove 332 is formed in the inner bottom plate 330 and faces the wiring maintenance cavity 320, the wiring groove 332 is communicated with the mounting groove 331, and wires 850 led out from the switch 830 and the control panel 840 are led out through the wiring groove 332 to avoid messy wires.

The mounting groove 331 has another function of supporting the top plate 350, that is, referring to fig. 8, the top plate 350 abuts both the supporting portion 334 and the top surface of the mounting groove 331, further improving the reliability of the top plate 350.

In some embodiments of the present application, a plurality of supporting pillars 333 are integrally formed on the inner bottom plate 330, a plurality of openings 351 are correspondingly formed on the top plate 350, and the tops of the supporting pillars 333 are exposed from the openings 351.

Referring to fig. 8, the bottom of the crisper 400 is provided with feet 430, and when the crisper 400 is placed on the shelf 300, the feet 430 are seated on the support posts 333. The support posts 333 support the crisper 400, and the top plate 350 does not bear the weight of the crisper 400, and the support structure is more stable and reliable because the support posts 333 are integrally formed on the inner bottom plate 330.

In some embodiments of the present application, referring to FIGS. 4 and 5, a plurality of first vacuum interface portions 500 are disposed within the bottom compartment 310, and a plurality of crispers 400 can be disposed on the top panel 350.

Each first vacuum-pumping interface part 500 is independently provided with a switch 830, so that independent vacuum-pumping control can be performed on a plurality of preservation boxes 400, and different low-pressure preservation environments required by different food materials in different preservation boxes 400 can be met.

[ fresh-keeping box ]

The application also makes corresponding improvements to the crisper 400, corresponding to the structure of vacuuming the bottom of the shelf.

Specifically, referring to fig. 8 and 9, the fresh keeping box 400 includes an upper cover 410 and a box body 420, the upper cover 410 is detachably connected to the box body 420, and the upper cover 410 and the box body 420 are sealed and fastened to form a storage cavity.

The bottom of the box body 420 is provided with a second vacuum interface 600, and the second vacuum interface 600 is used for connecting with the first vacuum interface 500 to vacuumize the crisper 400.

The upper cover 410 is provided with a pressure relief part 700 to relieve the pressure of the preservation box 400 in a low-pressure state, so that the upper cover 410 can be conveniently opened.

Regarding the specific structure of the second vacuum interface 600, in some embodiments of the present application, referring to fig. 9, the second vacuum interface 600 includes a first through hole 630 disposed at the bottom of the box body 420, a first pressure relief valve 620 is disposed in the first through hole 630, and a gap for gas to flow through is formed between an inner peripheral wall of the first through hole 630 and the first pressure relief valve 620.

The bottom of box body 420 is equipped with first bulge loop portion 611, and first bulge loop portion 611 extends towards the inner chamber of crisper, and first bulge loop portion 611 is equipped with a plurality of first flutings (not marked) along its circumference, and first through-hole 630 is located the space that first bulge loop portion 611 encloses, first fluting and first through-hole 630 intercommunication.

The top of the first pressure relief valve 620 is provided with a first circumferential extension 621, and the bottom of the first pressure relief valve 620 is provided with a second circumferential extension 622.

When the preservation box 400 is vacuumized, the first circumferential extension 621 abuts against the first protruding ring portion 611, and the second circumferential extension 622 is separated from the bottom of the box body 420. The gas in the inner cavity of the fresh-keeping box 400 flows out through the first slot on the first protruding ring part 611, so as to realize vacuum pumping and simultaneously prevent the first pressure release valve 620 from coming out of the first through hole 630.

After the vacuum pumping of the preservation box 400 is completed, the second circumferential extension 622 abuts against the bottom of the box body 420 for sealing, so as to avoid pressure release.

Further, the bottom of the box body 420 is provided with a second protruding ring portion 612, and the second protruding ring portion 612 extends toward the outer side of the box body 420.

When the crisper 400 is evacuated, the second circumferential extension 622 is separated from the second protruding ring portion 612. After the vacuum pumping of the fresh food compartment 400 is completed, the second circumferential extension 622 and the second protruding ring portion 612 are sealed against each other.

Further, the bottom of the box body 420 is further provided with a third protruding ring portion 613 and a fourth protruding ring portion 614, the third protruding ring portion 613 and the fourth protruding ring portion 614 both extend towards the outer side of the box body 420, the third protruding ring portion 613 is located on the inner periphery of the fourth protruding ring portion 614, and the second protruding ring portion 612 is located on the inner periphery of the third protruding ring portion 613.

An annular gap is formed between the third protruding ring portion 613 and the fourth protruding ring portion 614, and a vacuum pumping joint of the vacuum pumping device is hermetically connected with the annular gap, specifically, a soft rubber portion 540 on the first vacuum pumping interface portion is inserted into the annular gap, so as to realize sealed butt joint.

In some embodiments of the present application, four corners of the bottom of the box 420 are respectively provided with feet 430, and a bottom end of each foot 430 is located on a plane lower than a lowest position of the second vacuum interface 600. Thus, when the crisper 400 is placed on a certain plane, only the feet 430 abut against the placing plane, thereby preventing the second vacuum interface 600 from interfering with the placing of the crisper 400.

Regarding the specific structure of the pressure relief portion 700, in some embodiments of the present application, with reference to fig. 9, the pressure relief portion 700 includes a second through hole 730 disposed on the upper cover 410, a second pressure relief valve 720 is disposed in the second through hole 730, and a gap for gas to flow through is formed between an inner peripheral wall of the second through hole 730 and the second pressure relief valve 720.

The upper cover 410 is provided with a fifth protruding ring 711, the fifth protruding ring 711 extends towards the inner cavity of the fresh food box 400, the fifth protruding ring 711 is provided with a plurality of second slots (not labeled) along the circumferential direction thereof, and the second slots are communicated with the second through holes 730.

The top of the second pressure relief valve 720 is provided with a third circumferential extension 721, and the bottom of the second pressure relief valve 720 is provided with a fourth circumferential extension 722.

After the vacuum pumping of the preservation box 400 is completed, the third circumferential extension portion 721 abuts against the top surface of the upper cover 410 to be sealed, so that the sealing is realized, and the pressure relief of the inner cavity of the preservation box 400 is avoided.

When the preservation box 400 is depressurized, the third circumferential extension portion 721 is separated from the top surface of the upper cover 410, the fourth circumferential extension portion 722 abuts against the fifth protruding ring portion 711, and the gas in the inner cavity of the preservation box 400 flows out through the second slot, thereby preventing the second pressure release valve 720 from coming out of the second through hole 730.

Further, a sixth protruding ring portion 712 is further disposed on the upper cover 410, the sixth protruding ring portion 712 extends toward the outer side of the upper cover 410, and after the vacuum-pumping of the fresh-keeping box 400 is completed, the third circumferential extension portion 721 and the sixth protruding ring portion 712 are sealed in an abutting manner.

Further, a seventh protruding ring portion 713 is further disposed on the upper cover 410, the seventh protruding ring portion 713 is located at the outer periphery of the sixth protruding ring portion 712, and the extending height of the seventh protruding ring portion 713 is higher than the extending height of the sixth protruding ring portion 712.

The seventh protruding ring part 713 plays a certain role in protecting the second pressure release valve 720, thereby preventing foreign objects from being scratched on the second pressure release valve 720 to cause unnecessary pressure release, and improving the reliability of the preservation box 400.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, comprising:

a storage chamber;

a door for opening or closing the storage chamber;

it is characterized by also comprising:

2. The refrigerator according to claim 1,

the shelf comprises a bottom cavity, the preservation box is placed on a top plate which is enclosed into the bottom cavity, the first vacuumizing connector is arranged in the bottom cavity, and the second vacuumizing connector is arranged at the bottom of the preservation box.

3. The refrigerator according to claim 2,

the bottom cavity is internally provided with a plurality of first vacuumizing connector parts, and the top plate can be used for placing a plurality of preservation boxes.

4. The refrigerator according to claim 2,

the periphery of the bottom cavity is provided with side plates, the side plates are detachably connected with the inner container of the door body, and the four side plates and the top plate enclose a placing groove for placing the preservation box.

5. The refrigerator according to claim 4,

the shelf further comprises an inner bottom plate, the four side plates are integrally formed on the periphery of the inner bottom plate, the inner bottom plate forms the bottom surface of the bottom cavity, the first vacuumizing connector is arranged on the inner bottom plate, a supporting portion is arranged on the inner bottom plate, and the supporting portion is abutted to the top plate.

6. The refrigerator according to claim 5,

a first circumferential bulge is integrally formed on the inner bottom plate;

7. The refrigerator according to claim 6,

a first clamping portion is arranged on the inner bottom plate, a second clamping portion is correspondingly arranged on the second circumferential protrusion, and the first clamping portion is connected with the second clamping portion;

8. The refrigerator according to claim 5,

a plurality of support columns are integrally formed on the inner bottom plate, a plurality of openings are correspondingly formed in the top plate, and the tops of the support columns are exposed out of the openings;

9. The refrigerator according to claim 5,

the bottom of the inner bottom plate is also provided with an outer bottom plate, and the inner bottom plate, the outer bottom plate and the four side plates form a wiring maintenance cavity in a surrounding mode.

10. The refrigerator according to claim 9,

the shelf is provided with a switch for controlling the vacuum pump to start and stop, and a circuit connected with the switch is led out from the routing maintenance cavity.