CN113551465A

CN113551465A - Refrigerator with a door

Info

Publication number: CN113551465A
Application number: CN202010338600.4A
Authority: CN
Inventors: 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2021-10-26

Abstract

The invention discloses a refrigerator, which comprises a storage chamber, a door body and a vacuum refreshing device, wherein the door body is used for opening or closing the storage chamber, the vacuum refreshing device comprises a box body and a vacuumizing assembly, a storage cavity is formed in the box body, the box body is connected with the door body, the vacuumizing assembly comprises a vacuum pump, a suction head assembly and a pipeline, the vacuum pump is arranged on the top surface of the box body, one end of the pipeline is connected with the vacuum pump, the middle section of the pipeline penetrates through a hinge shaft and passes through the interior of the door body, the other end of the pipeline is connected with the suction head assembly, the suction head assembly is detachably communicated with the storage cavity, and the vacuumizing assembly is used for vacuumizing the storage cavity. The vacuum fresh-keeping device can not additionally occupy the refrigerating space in the storage chamber, and the external vacuum pump further improves the refrigerating space utilization rate of the refrigerator. The hinge shaft is utilized to transport the pipe, so that the pipe is more regular and convenient to take over. The box body can be taken down from the door body, and is more convenient to carry and use.

Description

Refrigerator with a door

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.

Disclosure of Invention

In some embodiments of this application, a refrigerator is provided, and the door body inner bag side detachably of refrigerator is equipped with the vacuum fresh-keeping device, and this vacuum fresh-keeping device can not additionally occupy the cold-stored space in the storage chamber, and the cold-stored space of the internal bag side of make full use of improves the cold-stored space utilization of refrigerator.

In some embodiments of this application, locate the vacuum freshness retaining device of door body inner bag side and utilize independent box body to save fresh-keeping or keep-alive, compare in traditional drawer seal, the sealed processing technology and the degree of difficulty of box body can descend by a wide margin, the processing of being convenient for.

In some embodiments of the application, the box body in the vacuum fresh-keeping device arranged on the inner container side of the door body can be taken down from the door body, so that the carrying and the use are more convenient.

In some embodiments of the application, when the vacuum pump in the vacuum refreshing device is installed at the top of the box body, the external vacuum pump does not occupy the space of the box body or the door body or the refrigerating space, and the space utilization rate of the refrigerator is improved.

In some embodiments of this application, when the vacuum pump among the vacuum refreshing device was installed at the top of box, utilized the hinge pin to walk the pipe, it is more regular to walk the pipe, and external vacuum pump is convenient for take over more.

In some embodiments of this application, when the vacuum pump among the vacuum refreshing device was installed at the top of box, the pipeline adopted two segmentation to walk the pipe mode, and the suction head subassembly independently installs respectively with first pipeline, vacuum pump and second pipeline, is convenient for take over and assemble.

In some embodiments of the present application, there is provided a refrigerator including: a case in which a storage chamber is formed; the door body is used for opening or closing the storage chamber and is provided with an upper end cover; the hinge comprises a hinge body and a hinge shaft arranged on the hinge body, the hinge body is fixedly connected with the top surface of the box body, and the hinge shaft is rotationally connected with the upper end cover; the refrigerator further includes: vacuum freshness retaining device, it includes: the box body is internally provided with a storage cavity and is connected with the door body; the vacuumizing assembly comprises a vacuum pump, a suction head assembly and a pipeline, wherein the vacuum pump is arranged on the top surface of the box body, one end of the pipeline is connected with the vacuum pump, the middle section of the pipeline penetrates through the hinge shaft and passes through the inside of the door body, the other end of the pipeline is connected with the suction head assembly, the suction head assembly is detachably communicated with the storage cavity, and the vacuumizing assembly is used for vacuumizing the storage cavity.

In some embodiments of the present application, the tubing comprises a first tubing and a second tubing; one end of the first pipeline is connected with the suction head assembly, and the other end of the first pipeline passes through the hinge shaft through the interior of the door body; one end of the second pipeline is connected with the vacuum pump; the first pipeline and the second pipeline are in butt joint communication outside the hinge shaft.

In some embodiments of the present application, a hinge cover is fixedly disposed on a top surface of the box body, and the vacuum pump and the hinge are covered by the hinge cover.

In some embodiments of the present application, one side of the hinge cover away from the side of the box body is fixedly connected with the top surface of the box body through a screw; the hinge cover is provided with a first connecting portion, the hinge body is correspondingly provided with a second connecting portion, and the first connecting portion is connected with the second connecting portion in a clamped mode.

In some embodiments of the present application, a third groove portion is formed on the top surface of the box body, and the vacuum pump portion is located in the third groove portion; the hinge cover is provided with a plurality of limiting plates, and the other part of the vacuum pump is positioned in a space surrounded by the limiting plates.

In some embodiments of this application, be equipped with the blow vent on the box body, the blow vent with storing chamber intercommunication, blow vent department is equipped with the check valve, the check valve is used for right the storing chamber carries out the pressure release, the suction head subassembly with the intercommunication can be dismantled to the blow vent.

In some embodiments of this application, be equipped with suction head connecting portion on the box body, suction head connecting portion are the orientation the concave part of storing chamber side indent, be equipped with on the suction head connecting portion the blow vent, the suction head subassembly with the connection can be dismantled to the suction head connecting portion.

In some embodiments of the present application, the suction head assembly includes a pipeline connecting portion and a sealing portion, which are connected, the pipeline is connected to the pipeline connecting portion, and the sealing portion is adapted to the suction head connecting portion and detachably connected to the suction head connecting portion in a sealing manner.

In some embodiments of the present application, the box body includes box body and upper cover down, down the box body with be equipped with locking Assembly between the upper cover, locking Assembly will box body with the locking of upper cover down.

In some embodiments of the present application, a sealing strip is disposed between the lower box body and the upper cover body.

Drawings

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

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

FIG. 2 is an exploded view of a vacuum refreshing apparatus according to one embodiment;

FIG. 3 is a cross-sectional view of a vacuum refreshing apparatus according to one embodiment;

FIG. 4 is an enlarged view of portion A of FIG. 2;

FIG. 5 is a schematic structural view of a second insertion part provided on the door body liner according to the embodiment;

FIG. 6 is a schematic structural view of a vacuum refreshing apparatus according to an embodiment, which is placed on a door body through a mounting seat;

FIG. 7 is a schematic structural view of FIG. 6 with the door body omitted;

FIG. 8 is a schematic diagram of a fitting structure between a box body and a mounting seat of the vacuum refreshing apparatus according to the embodiment;

FIG. 9 is a schematic structural diagram of a vacuum pump according to an embodiment mounted on an upper end cover of a door body;

FIG. 10 is a schematic partial structural view of an upper end cover of a door body according to an embodiment;

FIG. 11 is a schematic view of a piping structure of a pipeline when a vacuum pump according to an embodiment is installed on an upper end cover of a door body;

FIG. 12 is a schematic structural view of a buckle cover according to another embodiment;

FIG. 13 is a schematic structural view of a vacuum pump according to an embodiment mounted on an inner container of a door body;

FIG. 14 is a schematic view of an assembly structure of a vacuum pump and a limiting portion according to an embodiment;

fig. 15 is a schematic structural view in which a vacuum pump according to an embodiment is installed at a hinge cover;

FIG. 16 is a schematic piping structure of a piping when a vacuum pump is installed at a hinge cover according to an embodiment;

FIG. 17 is a schematic view of the piping structure of FIG. 16 as viewed from the back side of the door;

FIG. 18 is a schematic structural view of a hinge cover according to an embodiment;

FIG. 19 is a first schematic structural diagram (the movable door is closed) illustrating a structure for hiding the suction head assembly on the door body liner according to the embodiment;

FIG. 20 is a second schematic structural view (with the movable door open) illustrating a structure for hiding the suction head assembly provided on the door body liner according to the embodiment;

FIG. 21 is a third schematic structural view (with the movable door open) of a structure for hiding the suction head assembly provided on the door body liner according to the embodiment;

FIG. 22 is a schematic view of a routing structure of a pipeline when a structure for hiding a suction head assembly is arranged on the door body liner according to the embodiment;

FIG. 23 is a timing control schematic of a vacuum refreshing apparatus according to an embodiment;

FIG. 24 is a pressure control schematic of a vacuum refreshing apparatus according to an embodiment;

FIG. 25 is a schematic structural view of a gas regulating membrane disposed in a cartridge body for allowing unidirectional discharge of oxygen in the cartridge according to an embodiment;

FIG. 26 is a schematic structural diagram of the upper cover of the embodiment shown in FIG. 25;

fig. 27 is a schematic structural view of a modified atmosphere film which allows oxygen outside the box to enter in a one-way mode and is arranged in the box body according to the embodiment.

Reference numerals:

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

200-a door body;

210-a door body shell;

220-inner container, 221-second plug part, 2211-first convex part, 2212-plug gap, 222-accommodating part, 223-movable door, 224-second groove part and 225-second opening;

230-upper end cover, 231-containing cavity, 2311-first containing cavity, 2312-second containing cavity, 2313-first opening, 232-partition plate, 2321-notch part, 233-first groove part, 234-buckle cover, 2341-lug, 2342-connecting buckle, 235-support rib, 236-transverse rib and 237-hinge shaft hole;

240-lower end cap;

300-a box body;

400-vacuum fresh-keeping device;

410-box body, 411-upper cover body, 412-lower box body, 413-vent hole, 414-sucker connecting part, 415-locking component, 4151-clamping hook, 4152-clamping buckle, 416-storage cavity, 417-first inserting part, 4171-first inserting rib, 4172-first concave part, 418-second concave part, 4191-first air adjusting film mounting part and 4192-second air adjusting film mounting part;

420-vacuum pumping assembly, 421-suction head assembly, 4211-pipeline connecting part, 4212-sealing part, 4213-pipeline joint, 422-pipeline, 4221-first pipeline, 4222-second pipeline, 423-vacuum pump and 4231-soft rubber layer;

430-a one-way valve;

440-a sealing strip;

450-wave clamping grooves;

460-a gas buffer chamber;

470-mounting seat, 471-bottom surface, 4711-second convex part, 472-third plug part, 4721-third plug rib, 4722-third concave part;

480-a limiting part, 481-a first limiting sheet, 482-a second limiting sheet and 4821-a connecting part;

490-modified atmosphere membrane, 491-first modified atmosphere membrane, 492-second modified atmosphere membrane;

500-hinge, 510-hinge body, 511-second connection, 520-hinge axis;

600-hinge cover, 610-limit plate, 620-screw hole, 630-first connecting part, 640-accommodating space.

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" and "third" 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, features defined as "first", "second", "third" may explicitly or implicitly include one or more of the features. 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 one embodiment of a refrigerator of the present application; referring to fig. 1, the refrigerator of the present embodiment has 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 heat insulating 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; typically, the thermal insulation layer is filled with a foam material.

The storage compartment 100 has an open cabinet, and the storage compartment 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.

[ vacuum fresh-keeping device ]

Continuing to refer to fig. 1, door body 200 (specifically the door body of the cold storage room) is provided with vacuum refreshing device 400 in a detachable manner, and vacuum refreshing device 400 provides a vacuum storage environment for the stored goods, and meanwhile, because vacuum refreshing device 400 is located on the side of door body inner container 220, that is, located in the low-temperature storage room, the stored goods in vacuum refreshing device 400 will obtain a vacuum and low-temperature storage environment, and the refreshing effect is better.

Referring to fig. 2, the refreshing apparatus 400 includes a case 410 and a vacuum pumping assembly 420.

The case 410 has an approximately rectangular parallelepiped shape, and a storage chamber 416 is formed in the case 410 for storing articles; the case 410 is detachably connected to the door 200, so that the case 410 can be removed from the door 200 and is convenient to carry.

The evacuation assembly 420 is in removable communication with the storage cavity 416 via a conduit 422 for evacuating the storage cavity 416 to bring the interior of the storage cavity 416 to a vacuum state.

When the storage cavity 416 needs to be vacuumized, the vacuumizing assembly 420 is communicated with the storage cavity 416 through the pipeline 422; when the storage cavity 416 does not need to be vacuumized or the box body 410 needs to be taken down from the door body 200, the vacuumizing assembly 420 is separated from the storage cavity 416.

The vacuum refreshing device 400 is arranged on the door body 200, so that the refrigerating space in the storage chamber 100 cannot be occupied additionally, the refrigerating space on the side of the door body inner container 220 is fully utilized, and the refrigerating space utilization rate of the refrigerator is improved.

This vacuum refreshing device 400 utilizes independent box body 410 to save fresh-keeping, compares in traditional drawer sealed, and the sealed processing technology and the degree of difficulty of box body 410 can descend by a wide margin, the processing of being convenient for.

The box 410 of the vacuum refreshing apparatus 400 can be taken down from the door 200, which is more convenient for carrying and using.

[ case, locking assembly, seal strip ]

Referring to fig. 2, the case 410 includes an upper cover 411 and a lower case 412, which are fastened and locked or separated.

Be equipped with locking Assembly 415 between upper cover 411 and the lower box body 412, in the in-process of carrying out the evacuation operation to storing chamber 416, box body 410 need be in the closed condition, avoids in the external gas gets into storing chamber 416, can lock upper cover 411 and the lower box body 412 lock through locking Assembly 415 this moment, realizes above-mentioned purpose.

In some embodiments of the present application, as shown in fig. 2, the locking assembly 415 includes a hook 4151 and a buckle 4152, the hook 4151 is disposed on the lower case 412, the buckle 4152 is disposed on the upper cover 411, and the upper cover 411 and the lower case 412 are locked by the hook 4151 and the buckle 4152.

In some embodiments of the present application, referring to fig. 2, the locking assembly 415 is disposed on one side surface of the box 410 in the length direction (the front side surface of the box 410 in the orientation shown in fig. 2), and a rotating shaft structure can be mounted on the other side surface opposite to the locking assembly 415, so as to realize the rotating hinge between the upper cover 411 and the lower box 412.

In some embodiments of the present application, locking elements 415 are provided on opposite sides of the width of cassette 410 (left and right sides of cassette 410 in the orientation shown in FIG. 7), and double-sided fastening can help improve the sealing effect.

Referring to fig. 2 and 3, a sealing strip 440 is disposed between the upper cover 411 and the lower box 412 to improve the sealing effect of the box 410 and prevent external air from entering the storage cavity 416 and affecting the vacuum effect.

[ air ports, check valves ]

Referring to fig. 2 and 3, a vent 413 is provided on the box body 410, in some embodiments of the present application, the vent 413 is provided on the upper cover 411, the vent 413 is communicated with the storage cavity 416, a one-way valve 430 is provided at the vent 413, the one-way valve 430 is used for relieving pressure of the storage cavity 416, and the vacuum pumping assembly 420 is detachably communicated with the vent 413 through a pipeline 422.

When the storage cavity 416 needs to be vacuumized, the vacuuming assembly 420 is communicated with the air vent 413 through the pipeline 422, and the one-way valve 430 allows air in the storage cavity 416 to be discharged in one way through the air vent 413; after the storage cavity 416 is vacuumized, the vacuumizing assembly 420 is separated from the storage cavity 416, and at the moment, the one-way valve 430 seals the vent 413 to prevent gas in the storage cavity 416 from being exhausted, so that vacuum pressure maintaining is realized; when the storage cavity 416 needs to be decompressed, the one-way valve 430 is pulled towards the outer side of the box body 410, and external air can enter the storage cavity 416 through a gap between the one-way valve 430 and the vent 413, so that decompression is realized.

[ evacuation Assembly ]

With continued reference to fig. 2 and 3, the evacuation assembly 420 includes a vacuum pump 423 and a nozzle assembly 421, wherein one end of the conduit 422 is connected to the vacuum pump 423 and the other end is connected to the nozzle assembly 421, and the nozzle assembly 421 is in detachable communication with the vent 413.

When the vacuum pump 423 is used for vacuum pumping, the gas in the storage cavity 416 is exhausted through the air port 413 and the suction head assembly 421 under the action of the vacuum pump 423.

In some embodiments of the present application, the vacuum pump 423 is an electric brush vacuum pump, which has low cost, small volume and convenient connection.

In some embodiments of the present application, the conduit 422 is a hose or a rigid tube.

[ tip Assembly, tip connection part ]

With reference to fig. 2 and 3, the box body 410 (in this embodiment, the upper cover 411) is provided with a nozzle connecting portion 414, the nozzle connecting portion 414 is a concave portion that is concave toward the side of the storage cavity 416, the nozzle connecting portion 414 is provided with an air vent 413, the nozzle assembly 421 is detachably connected to the nozzle connecting portion 414, and the pipeline 422 is communicated with the air vent 413.

The concave suction head connecting part 414 enables the position of the air vent 413 to be lower than the upper end surface of the upper cover body 411 and enables the upper end surface of the one-way valve 430 not to be higher than the upper end surface of the upper cover body 411, on one hand, when the box body 410 is conveyed, foreign objects can be prevented from being scraped to the one-way valve 430 or the air vent 413 to damage the vacuum state in the box body 410; on the other hand, the recessed tip connection portion 414 facilitates the insertion and connection of the tip assembly 421, facilitating the connection.

The suction head assembly 421 comprises a pipeline connecting part 4211 and a sealing part 4212 which are connected, one end of the pipeline 422 is connected with the pipeline connecting part 4211, and the sealing part 4212 is matched with the suction head connecting part 414 and can be detachably and hermetically connected.

The pipe line connection portion 4211 has a hollow cylindrical structure, and one end of the pipe line connection portion 4211 is provided with a pipe line joint 4213 for connecting the pipe line 422.

The sealing portion 4212 is a silicone gasket, the sealing portion 4212 is in interference insertion connection with the end face of the peripheral wall of the pipeline connecting portion 4211, the sealing portion 4212 is in interference fit with the concave suction head connecting portion 414, and the sealing portion 4212 is squeezed, deformed and plugged into the concave suction head connecting portion 414 to realize connection between the suction head assembly 421 and the suction head connecting portion 414.

After the suction head assembly 421 is connected to the suction head connection portion 414, the hollow cylindrical pipe connection portion 4211 allows a certain distance to be reserved between the pipe connection portion 4211 and the vent 413, and the one-way valve 430, and a gas buffer chamber 460 is formed between the suction head assembly 421 and the suction head connection portion 414, so as to improve the smoothness of air suction, and prevent the pipe connection portion 4211 and the vent 413 from being too close to interfere with the movement of the one-way valve 430, thereby affecting the normal operation of vacuum suction.

The box body 410 can be directly detachably connected with the door body inner container 220, or the box body 410 is indirectly mounted on the door body inner container 220 through the mounting seat 470, specifically, the mounting seat 470 is arranged on the door body inner container 220, and the box body 410 is placed on the mounting seat 470; these two structural forms are described in detail below.

[ direct detachable connection of box body and inner container of door body ]

In some embodiments of the present application, the box body 410 is directly detachably connected to the door body inner container 220, specifically, a first inserting portion 417 is disposed on a sidewall of the box body 410 (as compared with the following box body 412), a second inserting portion 221 is correspondingly disposed on the inner container 220 of the door body, and the first inserting portion 417 is detachably inserted into the second inserting portion 221.

A plurality of second inserting parts 221 can be arranged on the inner container 220 at intervals along the height direction of the inner container, so that a plurality of boxes 410 can be simultaneously placed on the inner container 220, or the boxes 410 have a plurality of placing positions on the inner container 220.

Referring to fig. 4, the first inserting portion 417 is disposed on the left and right sidewalls of the lower case 412, and includes a first inserting rib 4171 and first recesses 4172 disposed on the left and right sides of the first inserting rib 4171, and a lower portion of the first recess 4172 is open to facilitate insertion with the second inserting portion 221; referring to fig. 5, the second socket 221 includes two first protrusions 2211 corresponding to the first recesses 4172, and a socket gap 2212 is formed between the two first protrusions 2211; when the box body 410 is installed, the first concave portion 4172 is matched with the first convex portion 2211, the first convex portion 2211 is inserted into the first concave portion 4172 from bottom to top, and the first splicing rib 4171 is inserted into the splicing gap 2212 from top to bottom, so that the connection between the box body 410 and the inner container 220 is realized, the splicing action is simple, and the structure is reliable.

The first inserting part 417 is configured as a structure of a concave part and a convex rib, and the outer side surface of the first inserting rib 4171 and the outer side surface of the lower box 412 are on the same plane, so that the overall outer profile of the box 410 has no obvious protruding structure, and when the box 410 is carried, it is avoided that foreign objects scratch the first inserting part 417 to break and fail the first inserting part 417, thereby affecting the assembly between the box 410 and the inner container 220.

At least one surface of the matching surface of the first plugging portion 417 and the second plugging portion 221 is provided with a wave clamping groove 450, so that the connection reliability between the first plugging portion 417 and the second plugging portion 221 is improved.

The wave locking groove 450 also has the function that the height of the box 410 can be adjusted by the wave locking groove 450, so that the suction head assembly 421 can be smoothly butted with the suction head connecting part 414, and the phenomenon that the pipeline 422 is stretched or bent due to improper height of the box 410 is avoided.

The number of the wave slots 450 is not too large to avoid affecting the convenient connection between the first connection part 417 and the second connection part 221.

In some embodiments of the present application, the wave locking grooves 450 are respectively disposed on the side of the first insertion rib 4171 facing the one of the first recesses 4172, on the side of the one of the first protrusions 2211 facing the insertion gap 2212, and on the wall of the inner container 220 at the insertion gap 2212.

[ case body set on door liner through mounting seat ]

In some embodiments of the present application, the box 410 is indirectly disposed on the door inner container 220 through the mounting seat 470, referring to fig. 6, the mounting seat 470 is disposed on the door inner container 220, and the box 410 is placed on the mounting seat 470.

The box body 410 is not directly connected with the inner container 220, so that the box body 410 is prevented from being worn due to frequent contact connection between the box body 410 and the inner container 220.

Referring to fig. 7, the case 410 is slidably coupled to the mounting seat 470 in a horizontal direction to facilitate taking and placing the case 410.

Specifically, the mounting seat 470 has a bottom surface 471, side walls are disposed on the left side, the right side and the rear side of the bottom surface 471, the front side of the bottom surface 471 is open and has no side wall, the box body 410 is placed on the bottom surface 471, and the open structure on the front side of the bottom surface 471 facilitates the insertion and removal of the box body 410.

A certain gap is formed between the sidewall of the mounting seat 470 and the box body 410, so that the box body 410 can be smoothly placed, and friction between the box body 410 and the sidewall can be avoided. Referring to fig. 8, a second protrusion 4711 is disposed on a bottom surface 471 of the mounting seat 470, which contacts the cartridge 410, the cartridge 410 (specifically, a bottom surface of the lower cartridge 412) is correspondingly provided with a second recess 418, the second protrusion 4711 is located in the second recess 418, and by the cooperation between the second protrusion 4711 and the second recess 418, the positioning of the cartridge 410 on the mounting seat 470 is realized, so as to prevent the cartridge 410 from moving or sliding off the mounting seat 470.

The outer perimeter of the second raised portion 4711 is spaced from the inner perimeter of the second recessed portion 418 by a gap, such as 3-5mm, that allows the cartridge 410 to be moved a small amount from the mounting block 470 to adjust the position of the cartridge 410 to facilitate easy access of the tip assembly 421 when the tip assembly 421 is attached to the cartridge 410.

The mounting seat 470 and the inner container 220 are detachably connected by means of splicing, third splicing parts 472 are respectively arranged on the left side wall and the right side wall of the mounting seat 470, second splicing parts 221 are correspondingly arranged on the inner container 220 of the door body, and the third splicing parts 472 are detachably spliced with the second splicing parts 221.

The third inserting portion 472 and the second inserting portion 221 are both inserting structures extending along the vertical direction, the mounting seat 470 and the inner container 220 are inserted and fixed along the vertical direction, and the box body 410 is in horizontal sliding contact with the mounting seat 470 when being taken or placed, so that the influence on the connection between the mounting seat 470 and the inner container 220 when the box body 410 is taken or placed can be avoided.

Referring to fig. 7, the third insertion part 472 includes a third insertion rib 4721 and third concave parts 4722 disposed on the left and right sides of the third insertion rib 4721, and the lower portion of the third concave part 4722 is open to facilitate insertion with the second insertion part 221; referring to fig. 5, the second socket 221 includes two first protrusions 2211 corresponding to the third recesses 4722, and a socket gap 2212 is formed between the two first protrusions 2211; when the mounting seat 470 is assembled, the third concave portion 4722 is matched with the first convex portion 2211, the first convex portion 2211 is inserted into the third concave portion 4722 from bottom to top, and the third plugging rib 4721 is inserted into the plugging gap 2212 from top to bottom, so that the connection between the mounting seat 470 and the liner 220 is realized, the plugging action is simple, and the structure is reliable.

The third inserting portion 472 is arranged to be a concave portion and convex rib structure, the outer side surface of the third inserting rib 4721 and the outer side surface of the mounting seat 470 are located on the same plane, and therefore the overall outer contour of the mounting seat 470 does not have an obvious protruding structure, and when the mounting seat 470 is moved, foreign objects can be prevented from being scraped to the third inserting portion 472, so that the third inserting portion 472 is broken and fails, and the assembly between the mounting seat 470 and the liner 220 is affected.

At least one surface of the matching surface of the third inserting-connecting part 472 and the second inserting-connecting part 221 is provided with a wave clamping groove 450, so that the connection reliability between the third inserting-connecting part 472 and the second inserting-connecting part 221 is improved.

The wave locking groove 450 also has the function that the installation height of the installation seat 470 can be adjusted through the wave locking groove 450, so that the suction head assembly 421 can be smoothly butted with the suction head connection part 414, and the phenomenon that the pipeline 422 is stretched or bent due to improper height of the installation seat 470 is avoided.

The number of the wave slots 450 is not too large, so as to avoid affecting the convenient insertion between the third insertion portion 472 and the second insertion portion 221.

In some embodiments of the present application, the wave locking grooves 450 are respectively formed on the side of the third inserting rib 4721 facing the one of the third concave portions 4722, the side of the one of the first convex portions 2211 facing the inserting gap 2212, and the wall of the liner 220 at the inserting gap 2212.

Three mounting position embodiments of the vacuum pump 423 are given below, namely, the vacuum pump 423 is mounted on the door body upper end cover 230, the vacuum pump 423 is mounted on the door body inner container 220, and the vacuum pump 423 is mounted on the top of the box body 300 and located in the hinge cover 600, which will be described in detail below.

[ vacuum pump mounted on door upper end cover ]

Referring to fig. 9, the upper end cover 230 of the door body is provided with the accommodating cavity 231, the vacuum pump 423 is disposed in the accommodating cavity 231, the inner space of the door body 200 is fully utilized, and the vacuum pump 423 is not exposed to the outside, so that the door body is more attractive.

The accommodating cavity 231 is a concave pit portion recessed towards the inner side of the door body 200, and the top surface of the accommodating cavity 231 and the upper end cover 230 are located on the same plane, so that the overall appearance of the door body 200 is not affected.

Referring to fig. 10, a partition 232 is disposed in the accommodating cavity 231, the partition 232 divides the accommodating cavity 231 into a first accommodating cavity 2311 and a second accommodating cavity 2312 which are arranged left and right, the vacuum pump 423 is disposed in the first accommodating cavity 2311, and the second accommodating cavity 2312 is used for routing, for example, a power line of the vacuum pump 423 and/or a pipeline connected with the vacuum pump 423 can be routed from the second accommodating cavity 2312, so that the arrangement of components in the accommodating cavity 231 is more regular.

The partition 232 is provided with a notch 2321 to facilitate the passage of the line from the second accommodation chamber 2312 into the first accommodation chamber 2311.

The upper end cover 230 is provided with a first groove portion 233, a buckle cover 234 is arranged at an opening of the first groove portion 233, an accommodating cavity 231 is enclosed by the buckle cover 234 and the first groove portion 233, and the buckle cover 234 is detachably connected with the upper end cover 230, so that the vacuum pump 423 can be conveniently installed and maintained.

The buckle cover 234 is a flat plate structure, and in some embodiments, referring to fig. 9, the left end and the right end of the buckle cover 234 are respectively provided with a lug 2341, the lug 2341 is provided with a screw hole, and the buckle cover 234 is connected with the upper end cover 230 through a screw; in other embodiments, referring to fig. 12, a connecting buckle 2342 is disposed on the buckle cover 234, a hook (not shown) is correspondingly disposed on the upper end cover, and the buckle of the connecting buckle 2342 and the hook realizes the installation of the buckle cover 234.

Referring to fig. 11, fig. 11 is a schematic view of the piping structure of the pipeline 422 as viewed from the back side of the door 200, the bottom of the accommodating chamber 231 is provided with a first opening 2313, the inner container 220 of the door is provided with a second opening 225, and the pipeline 422 led out from the suction head assembly 421 penetrates between the inner container 220 and the door housing 210 (i.e., a foaming layer) through the second opening 225 and then is connected with the suction port of the vacuum pump 423 through the first opening 2313.

Most of the pipeline 422 is hidden in the door body 200, only a small section of pipeline 422 connected with the suction head assembly 421 at the side of the inner container 220 is exposed, and the whole pipeline is regularly and orderly wired.

[ vibration damping of vacuum Pump ]

A vibration damping assembly is disposed between the receiving chamber 231 and the vacuum pump 423 to reduce vibration and noise of the vacuum pump 423.

Referring to fig. 9 and 10, the vibration damping assembly includes a plurality of support ribs 235 disposed on the inner wall of the accommodating cavity 231, that is, the support ribs 235 are disposed on the inner wall of the first groove portion 233 and the buckle cover 234, respectively, the support ribs 235 extend along the circumferential direction of the accommodating cavity 231, the outer end surfaces of the support ribs 235 are fitted to the outer contour of the vacuum pump 423 in a matching manner, the support ribs 235 play a role in supporting and positioning the vacuum pump 423 on the one hand, and on the other hand, the contact area between the vacuum pump 423 and the inner wall of the accommodating cavity 231 is reduced, which is beneficial to reducing vibration.

The profile shape that the bracing rib 235 that extends in the circumference formed and the profile adaptation of vacuum pump 423, it plays better parcel location effect to vacuum pump 423, makes the installation of vacuum pump 423 more firm.

The buckle cover 234 is further provided with a transverse rib 236, and the transverse rib 236 is crossly connected with a plurality of support ribs 235 arranged on the buckle cover 234 to enhance the strength of the buckle cover 234.

The vibration reduction assembly further comprises a soft rubber layer 4231 wrapped on the periphery of the vacuum pump 423, so that the vibration conduction is further reduced, and the noise is reduced.

[ vacuum pump mounted on door liner ]

The vacuum pump 423 is arranged on the inner container 220 of the door body, the length of a pipeline 422 connecting the vacuum pump 423 and the suction head assembly 421 is shorter, an internal pipeline is not needed, the structure is simpler, and the assembly is convenient; meanwhile, the vacuum pump 423 is positioned at the side of the refrigerating space, so that the vacuum pump 423 can be always in a low-temperature environment, and the service life of the vacuum pump 423 can be prolonged.

Referring to fig. 13 and 14, a second groove portion 224 and a limiting portion 480 are arranged on the inner container 220 of the door body, the limiting portion 480 is detachably connected with the inner container 220, the vacuum pump 423 can be limited in the second groove portion 224 through the limiting portion 480, and the vacuum pump 423 is fixed on the inner container 220; the vacuum pump 423 is at least partially positioned in the second groove part 224, so that the vacuum pump 423 is more stable; meanwhile, the outward protruding size of the vacuum pump 423 is reduced, so that the side of the inner container 220 is more regular and beautiful.

The limiting part 480 comprises a first limiting piece 481 and a second limiting piece 482, the first limiting piece 481 is of a semi-hollow cylindrical structure, the second limiting piece 482 is also of a semi-hollow cylindrical structure, the first limiting piece 481 and the second limiting piece 482 are connected in a buckling mode and the like, a hollow cavity is formed after the first limiting piece and the second limiting piece are connected, and the vacuum pump 423 is located in the hollow cavity.

The first limiting piece 481 and the second limiting piece 482 are made of waterproof materials (such as plastics), so that the vacuum pump 423 is prevented from being waterproofed to some extent, and the adverse effect of condensation in the refrigerating space on the performance of the vacuum pump 423 is avoided.

The first limiting piece 481 and/or the second limiting piece 482 are/is fixedly connected with the inner container 220 of the door body, in fig. 14, the left side and the right side of the second limiting piece 482 are respectively provided with a connecting part 4821, and the connecting parts 4821 are fixedly connected with the inner container 220 through screws, so that the connection between the limiting part 480 and the inner container 220 is realized.

The bottom of the hollow cavity surrounded by the first position-limiting plate 481 and the second position-limiting plate 482 is provided with a third opening (not labeled) for the pipeline 422 to penetrate, and the pipeline 422 led out from the suction head assembly 421 is communicated with the suction port of the vacuum pump 423 through the third opening.

[ vacuum Pump mounted in hinged lid ]

Referring to fig. 15, the box 300 is rotatably connected to the door 200 through a hinge 500, the hinge 500 includes a hinge body 510 and a hinge shaft 520 disposed on the hinge body 510, the hinge body 510 is fixedly connected to the top surface of the box 300 through a screw, the upper end cap 230 is provided with a hinge shaft hole 237, and the hinge shaft 520 is disposed in the hinge shaft hole 237, so that the hinge shaft 520 is rotatably connected to the upper end cap 230. When the door body 200 is closed or opened, the hinge shaft 520 rotates in the hinge shaft hole 237, and the case 300 is not shown in fig. 15.

Vacuum pump 423 is set on the top surface of box 300, one end of pipeline 422 is connected to vacuum pump 423, the middle section of pipeline 422 is set in hinge shaft 520 and passes through the inside of door 200, the other end is connected to suction head assembly 421.

The vacuum pump 423 is arranged at the top of the refrigerator body 300, the pipe is moved by the hinge shaft 520, the external vacuum pump 423 does not occupy the space of the refrigerator body 300 or the door body 200 or a refrigerating space, the space utilization rate of the refrigerator is improved, and the pipe moving and the pipe connecting are more convenient for the external vacuum pump 423.

With reference to fig. 15, a hinge cover 600 is fixedly disposed on the top surface of the refrigerator body 300, and the vacuum pump 423 and the hinge 500 are covered by the hinge cover 600, so as to prevent the vacuum pump 423 and the hinge 500 from being exposed, and improve the aesthetic property of the refrigerator.

Referring to fig. 18 again, a screw hole 620 is formed in a side of the hinge cover 600 away from the side of the box 300 and is fixedly connected to the top surface of the box 300 through a screw, and in some embodiments, the hinge cover 600 is fixedly connected to the box 300 through two screws; the hinge cover 600 is provided with a first connection portion 630 (for example, a plug protrusion) on the other side edge, the hinge body 510 is correspondingly provided with a second connection portion 511 (for example, a plug cavity), and the first connection portion 630 is clamped with the second connection portion 511.

When the hinge cover 600 is installed, the first connecting portion 630 and the second connecting portion 511 are clamped, initial positioning installation of the hinge cover 600 is achieved, then screws are used, final fixing between the hinge cover 600 and the box body 300 is achieved, assembly is facilitated, and the structure is reliable.

A third groove portion (not shown) is formed on the top surface of the case 300, and the vacuum pump 423 is partially located in the third groove portion; referring to fig. 18, the hinge cover 600 is provided with a plurality of position limiting plates 610, and another portion of the vacuum pump 423 is located in an accommodating space 640 surrounded by the plurality of position limiting plates 610; through the cooperation between third recess portion and a plurality of limiting plate 610, realize all-round spacing to vacuum pump 423, make vacuum pump 423 install at box 300 top firmly.

A reinforcing rib (not shown) may be provided between the limiting plate 610 and the body of the hinge cover 600 to enhance the strength of the limiting plate 610.

When the vacuum pump 423 is installed at the top of the box 300, the pipeline 422 adopts a two-stage pipeline, specifically, referring to fig. 16 and 17, fig. 17 is a structural schematic diagram of a pipeline of fig. 16 viewed from the back side of the door 200, and the pipeline 422 includes a first pipeline 4221 and a second pipeline 4222; one end of the first pipeline 4221 is connected with the suction head assembly 421, and the other end passes through the interior of the door body 200, passes through the hinge shaft 520 and is exposed out of the hinge shaft 520; one end of the second pipe 4222 is connected with the vacuum pump 423, and the other end of the second pipe 4222 extends to a position close to the hinge shaft 520; the first and

second pipes

4221 and 4222 are in butt communication outside the hinge shaft 520, thereby achieving communication between the vacuum pump 423 and the storage chamber 416.

When the suction head assembly 421 is installed, the first pipeline 4221, the vacuum pump 423 and the second pipeline 4222 are independently installed, so that the suction head assembly is convenient to take over and assemble.

[ concealment of suction head Assembly and piping ]

When need not carry out evacuation to box body 410, or box body 410 has taken off from door body 200, in order to make in the cold-stored space neater, improve cold-stored space's utilization ratio, this application some embodiments have set up hidden structure on door body 200 to hide suction unit 421 and partial pipeline 422.

Specifically, the inner container 220 of the door body is provided with a containing part 222, the containing part 222 is provided with a hollow cavity and a movable door 223 capable of opening and closing, the movable door 223 opens or closes the hollow cavity, and when the suction head assembly 421 is not communicated with the storage cavity 416, the suction head assembly 421 and a part of pipeline 422 connected with the suction head assembly 421 are located in the hollow cavity to avoid exposure.

FIG. 19 is a schematic view of the structure in which the suction head assembly 421 and a part of the pipeline 422 are located in the containing part 222, when the movable door 223 is closed, and the suction head assembly 421 and a part of the pipeline 422 are located in the containing part 222; fig. 20 is a schematic structural view when the shutter 223 is opened; fig. 21 is a schematic view of the suction head assembly 421 and a portion of the pipeline 422 being taken out of the receiving portion 222, and the suction head assembly 421 being communicated with the storage cavity 416.

In some embodiments, the accommodating portion 222 is an inward concave structure disposed on the inner container 220, so as to prevent the accommodating portion 222 from protruding outward to occupy a refrigerating space, thereby increasing the occupancy rate of the refrigerating space.

In some embodiments, the movable door 223 is slidably connected to the inner container 220, for example, a slide rail structure is disposed between the movable door 223 and the inner container 220, and the movable door 223 can be opened or closed by vertically pushing and pulling the movable door 223, which is simple in structure and convenient to operate.

In some embodiments, the movable door 223 is made of a transparent material, so that the user can easily know the placement position of the suction head assembly 421 for use.

In some embodiments, a movable stop (e.g., a rotatable stop bar, not shown) is disposed in the receiving portion 222, and the movable stop limits the pipeline 422 or the suction head assembly 421 in the receiving portion 222, so that the pipeline 422 and the suction head assembly 421 are more reliably placed in the receiving portion 222 and cannot fall out.

[ time control of vacuum fresh-keeping apparatus ]

In some embodiments of the present application, the vacuum-pumping time of the vacuum refreshing apparatus 400 is controlled by a program, so that the storage cavity 416 can reach a real vacuum state, thereby avoiding the vacuum-pumping failure caused by too short vacuum-pumping time or the damage to the vacuum pump 423 and the box 410 caused by too long vacuum-pumping time.

The refrigerator also comprises a control system, the control system comprises a door switch detection device for detecting the opening or closing of the door body, the control system is electrically connected with the vacuum pump 423 in the vacuum pumping assembly 420 and can control the opening or closing of the vacuum pump 423; the control system may count the run time of the evacuation assembly 420, and in particular, the run time of the vacuum pump 423.

The control system is configured to: when the door opening and closing detection device detects that the door body 200 is opened, the vacuum pumping assembly 420 is controlled to stop running.

After the vacuumizing assembly 420 is started, when the door switch detection device detects that the door body 200 is opened, the control system controls the vacuumizing assembly 420 to stop, and after the door switch detection device detects that the door body 200 is closed again, the control system controls the vacuumizing assembly 420 to be opened again.

When the running time of the vacuum pumping assembly 420 reaches the set time required for the vacuum pumping of the storage cavity 416 to be completed, the control system controls the vacuum pumping assembly 420 to stop.

The timing of the vacuum refreshing apparatus 400 will be described in detail with reference to fig. 23.

Setting that the storage cavity 416 can reach a vacuum state only within t1 time under the action of the vacuumizing assembly 420, detecting whether the door body 200 is in a closed state by the control system during vacuumizing, if so, controlling the vacuum pump 423 to be started and clearing the accumulated running time of the vacuum pump 423 by the control system, starting vacuumizing the box body 410 by the vacuumizing assembly 420 until the vacuum pump 423 runs to t1 time in an accumulated mode, which indicates that the vacuumizing of the box body 410 is completed at the moment, and controlling the vacuum pump 423 to stop by the control system when the box body 410 is in the vacuum state; if the control system detects that the door 200 is in the open state, the vacuum pump 423 is not opened.

When the storage cavity 416 changes to a vacuum state under the action of the vacuum pumping assembly 420, if the control system detects that the door body 200 is opened midway, the control system stops controlling the vacuum pumping assembly 420 (specifically, the vacuum pump 423), sets the stop operation time of the vacuum pump 423 to t2, controls the vacuum pump 423 to be restarted after the door body 200 is closed again, controls the vacuum pump 423 to be stopped again after the vacuum pump 423 runs again (t 1-t 2) for a time, at this time, the actual accumulated operation time of the vacuum pump 423 is t1, and the interior of the box body 410 reaches the vacuum state.

Through program control, the vacuum pump 423 is stopped when the door body 200 is opened, and a user can take the box body 410 at the moment; if the vacuum pump 423 still continues to work when the door 200 is opened, the user may cause the vacuum pump 423 to work inefficiently when taking the box 410, which affects the user experience and reduces the service life of the vacuum pump 423.

The inner container 220 of the door body or the outer surface is provided with a key for controlling the vacuumizing assembly 420 to start and stop, the control system receives a starting and stopping signal of the key to control the vacuumizing assembly 420 to start and stop, and a user directly presses the vacuumizing assembly to start and stop the key when the user needs to vacuumize the box body.

[ pressure control of vacuum fresh-keeping apparatus ]

In some embodiments of the present application, the vacuum pressure of the vacuum refreshing apparatus 400 is controlled by a program, so that the storage chamber 416 can reach a real vacuum state, and it is avoided that the vacuum pressure is too low to cause vacuum failure or the vacuum pressure is too high to damage the vacuum pump 423 and the box 410.

The refrigerator also comprises a control system, the control system comprises a pressure sensor for detecting the pressure in the vacuum refreshing device, and the control system is electrically connected with the vacuum pump 423 in the vacuumizing assembly 420 and can control the opening or closing of the vacuum pump 423.

The control system is configured to: when the pressure sensor detects that the pressure in the vacuum refreshing apparatus 400 reaches a set pressure value, the vacuum pumping assembly 420 is controlled to be closed.

The control system further comprises a door opening and closing detection device for detecting the opening or closing of the door body 200, and when the door opening and closing detection device detects that the door body 200 is opened, the control system controls the vacuum pumping assembly 420 to be closed.

When the storage cavity 416 changes to a vacuum state under the action of the vacuumizing assembly 420, and the door switch detection device detects that the door body 200 is opened, the control system controls the vacuumizing assembly 420 to be closed, and after the door switch detection device detects that the door body 200 is closed again, the control system controls the vacuumizing assembly 420 to be opened again.

The door body 200 is provided with a key for controlling the vacuum pumping assembly to start and stop, and the control system receives a start-stop signal of the key to control the vacuum pumping assembly 420 to start and stop.

The pressure control of the vacuum refreshing apparatus 400 will be described in detail with reference to fig. 24.

When the pressure in the storage cavity 416 is set to reach a pressure value of P1 under the action of the vacuum pumping assembly 420, the storage cavity 416 is in a vacuum state, and when the control system detects that the pressure value in the storage cavity 416 is P1, the control system controls the vacuum pumping assembly 420 to be closed, specifically controls the vacuum pump 423 to stop.

When the storage cavity 416 changes to a vacuum state under the action of the vacuumizing assembly 420, if the control system detects that the door body 200 is opened midway, the control system controls the vacuum pump 423 to stop, and after the door body 200 is closed again, the control system controls the vacuum pump 423 to be opened again until the pressure value detected by the control system is the value P1, the control system controls the vacuum pump 423 to stop.

Through program control, the vacuum pump is stopped when the door body 200 is opened, and a user can take the box body 410 and the like at the moment; if the vacuum pump 423 still continues to work when the door 200 is opened, the user may cause the vacuum pump 423 to work inefficiently when taking the box 410, which affects the user experience and reduces the service life of the vacuum pump 423.

In some embodiments of the present application, the pressure sensor is disposed on the pipeline 422, and the pressure sensor is electrically connected to the control system to detect the pressure.

In some embodiments of the present application, the vacuum refreshing apparatus 400 disposed on the door 200 is further provided with an air-conditioning film 490 disposed on the box body 410, and the flow direction of oxygen can be adjusted by adjusting the installation direction and the installation position of the air-conditioning film 490, thereby achieving different effects.

When the air-conditioning film 490 allows oxygen in the storage cavity 416 to be discharged in one direction, the storage cavity 416 can be brought to a vacuum, low-temperature, low-oxygen state, so as to improve the freshness preservation, and is suitable for storage of fruits, vegetables, fresh milk and other articles; when the modified atmosphere film 490 allows external oxygen to flow into the storage cavity 416 in one direction through the modified atmosphere film 490, the interior of the storage cavity 416 can reach a low temperature and high oxygen state, so as to improve the activity preservation, and is suitable for storage of live fish and the like.

Two configurations of the modified atmosphere film 490 are described in detail below.

[ controlled atmosphere film-Low temperature, Low oxygen, vacuum preservation ]

Referring to fig. 25 and 26, in some embodiments of the present application, a modified atmosphere membrane 490 (labeled as a first modified atmosphere membrane 491) is disposed at a location where the evacuation assembly 420 communicates with the storage chamber 416, wherein the first modified atmosphere membrane 491 allows one-way evacuation of oxygen from the storage chamber 416 through the evacuation assembly 420, such that a vacuum, low temperature, low oxygen condition is achieved within the storage chamber 416.

Specifically, the inner side wall of the upper cover 411 is provided with a first air-conditioning film mounting portion 4191, the first air-conditioning film 491 is mounted at the first air-conditioning film mounting portion 4191, and the first air-conditioning film 491 covers the vent 413, so that during vacuum pumping, compared with the vacuum preservation device 400 without the first air-conditioning film 491, more oxygen is pumped out by the vacuum pumping assembly 420 in unit working time, and further, the oxygen content in the box body 410 is lower, and the preservation effect is improved.

[ controlled atmosphere film-low temperature, high oxygen keep alive ]

Referring to fig. 27, a modified atmosphere film 490 (labeled as a second modified atmosphere film 492) is disposed on the box body 410, the second modified atmosphere film 492 allows external oxygen to flow into the storage cavity 416 in one direction through the second modified atmosphere film 492, the evacuation component 420 first evacuates the storage cavity 416, the pressure in the storage cavity 416 is negative, and a large amount of oxygen outside the storage cavity 416 enters the storage cavity 416 through the second modified atmosphere film 492, so that the oxygen content in the storage cavity 416 is greatly increased.

Specifically, the upper cover 411 is provided with a second modified atmosphere film mounting part 4192, the second modified atmosphere film mounting part 4192 has an opening structure, and the second modified atmosphere film 492 covers the opening.

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 case in which a storage chamber is formed;

the door body is used for opening or closing the storage chamber and is provided with an upper end cover;

the hinge comprises a hinge body and a hinge shaft arranged on the hinge body, the hinge body is fixedly connected with the top surface of the box body, and the hinge shaft is rotationally connected with the upper end cover;

characterized in that, the refrigerator still includes:

vacuum freshness retaining device, it includes:

the box body is internally provided with a storage cavity and is connected with the door body;

the vacuumizing assembly comprises a vacuum pump, a suction head assembly and a pipeline, wherein the vacuum pump is arranged on the top surface of the box body, one end of the pipeline is connected with the vacuum pump, the middle section of the pipeline penetrates through the hinge shaft and passes through the inside of the door body, the other end of the pipeline is connected with the suction head assembly, the suction head assembly is detachably communicated with the storage cavity, and the vacuumizing assembly is used for vacuumizing the storage cavity.

2. The refrigerator according to claim 1,

the pipelines comprise a first pipeline and a second pipeline;

one end of the first pipeline is connected with the suction head assembly, and the other end of the first pipeline passes through the hinge shaft through the interior of the door body;

one end of the second pipeline is connected with the vacuum pump;

the first pipeline and the second pipeline are in butt joint communication outside the hinge shaft.

3. The refrigerator according to claim 1,

and a hinge cover is fixedly arranged on the top surface of the box body and covers the vacuum pump and the hinge.

4. The refrigerator according to claim 3,

one side of the hinge cover, which is far away from the side edge of the box body, is fixedly connected with the top surface of the box body through a screw;

the hinge cover is provided with a first connecting portion, the hinge body is correspondingly provided with a second connecting portion, and the first connecting portion is connected with the second connecting portion in a clamped mode.

5. The refrigerator according to claim 3,

a third groove part is formed in the top surface of the box body, and the vacuum pump part is located in the third groove part;

the hinge cover is provided with a plurality of limiting plates, and the other part of the vacuum pump is positioned in a space surrounded by the limiting plates.

6. The refrigerator according to any one of claims 1 to 5,

the novel suction head is characterized in that a vent hole is formed in the box body and communicated with the storage cavity, a one-way valve is arranged at the vent hole and used for relieving pressure in the storage cavity, and the suction head assembly is detachably communicated with the vent hole.

7. The refrigerator according to claim 6,

the novel storage box is characterized in that a suction head connecting portion is arranged on the box body and faces towards a concave portion which is concave inwards in the side of the storage cavity, the suction head connecting portion is provided with a vent, and the suction head assembly is detachably connected with the suction head connecting portion.

8. The refrigerator according to claim 7,

the suction head assembly comprises a pipeline connecting portion and a sealing portion, the pipeline is connected with the pipeline connecting portion, and the sealing portion is matched with the suction head connecting portion and can be detachably connected with the suction head connecting portion in a sealing mode.

9. The refrigerator according to any one of claims 1 to 5,

the box body comprises a lower box body and an upper cover body, a locking assembly is arranged between the lower box body and the upper cover body, and the locking assembly locks the lower box body and the upper cover body.

10. The refrigerator according to claim 9,

and a sealing strip is arranged between the lower box body and the upper cover body.