A refrigerator

Abstract

The present invention discloses a refrigerator, which includes a vacuum packaging device. The vacuum packaging device includes a vacuum pumping area and a packaging area arranged from the inside to the outside, and a vacuum pumping assembly for performing vacuum pumping treatment on the vacuum pumping area. The vacuum pumping assembly includes a vacuum pump, a pressure detection device and a gas balance device connected through a pipeline. Among them, the vacuum pumping assembly is installed on a mounting seat, and the mounting seat includes a seat body. A partition rib is formed on the seat body, and the partition rib is used to divide the seat body into several installation chambers. A pipeline connector is provided on the pipeline, and the pipeline connector is inserted into the opening of the partition rib. The refrigerator of the present invention can perform vacuum packaging treatment on storage bags containing food ingredients; it can perform vacuum pumping and fresh-keeping treatment on food ingredients stored in various compartments of the refrigerator, expanding the fresh-keeping range. At the same time, the pipeline connector is inserted into the opening of the partition rib of the mounting seat, which makes it easier for users to install each vacuum pumping assembly.

Description

Technical Field

[0001] The present invention belongs to the field of household appliances, and particularly relates to a refrigerator. Background Art

[0002] In recent years, people's awareness of health has gradually increased, and the demand for food preservation has also increased accordingly. As the most commonly used household appliance for storing food, food preservation storage has become a technical need to be urgently solved in the field of refrigerators.

[0003] Currently, in response to the problem of food preservation storage, various manufacturers have introduced different preservation technologies. For example, vacuum preservation technology. Under vacuum conditions, the conditions for food spoilage have changed. First, in a vacuum environment, it is difficult for microorganisms and various promoting enzymes to survive, and it takes a long time to reach the requirements for microbial growth. Second, in a vacuum state, the oxygen in the container is greatly reduced, and various chemical reactions cannot be completed, so the food will not be oxidized, which also enables the food to be preserved for a long time.

[0004] The vacuum preservation technology currently applied to refrigerators mainly sets a sealed drawer in the refrigerator, and uses a small vacuum pump installed outside the drawer to evacuate the drawer to keep the drawer in a negative pressure state, thereby achieving the preservation of the food in the drawer. This preservation method has the following limitations: 1. Since the evacuation process needs to be realized through a vacuum pump, the vacuum pump will occupy a part of the storage space in the refrigerating compartment; 2. This preservation method requires the drawer to be sealed. Otherwise, a vacuum state cannot be formed inside the drawer. Therefore, higher requirements are put forward for the forming and assembly processes of the drawer; 3. This preservation method can only preserve the food in the drawer and cannot play a preservation role for the food in other areas of the refrigerator. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing refrigerator has an unsatisfactory preservation effect, and further provides a refrigerator with low cost, no occupation of storage space and capable of preserving food in each area.

[0006] To solve the above technical problems, the present invention discloses a refrigerator, which includes a storage compartment and a door body for opening or closing the storage compartment. A vacuum packaging device is provided on the outer side of the door body. The vacuum packaging device includes: a vacuum pumping area and a packaging area arranged from inside to outside. The open ends of the storage bags are respectively inserted into the vacuum pumping area and the packaging area. The vacuum pumping area performs vacuum pumping on the storage bags, and the packaging area is used for plastic sealing the storage bags; a vacuum pumping assembly for performing vacuum pumping on the vacuum pumping area. The vacuum pumping assembly includes: a vacuum pump; the vacuum pump is connected to the vacuum pumping area through a pipeline; a pressure detection device and a gas balance device are further provided on the pipeline. The pressure detection device is used for detecting the pressure in the vacuum pumping area, and the gas balance device connects the vacuum pumping area to the external gas; wherein, the vacuum pumping assembly is installed on a mounting seat. The mounting seat includes a seat body, and partition ribs are formed on the seat body. The partition ribs are used for dividing the seat body into several installation chambers; a pipeline connector is provided on the pipeline, and the pipeline connector is inserted on the partition ribs.

[0007] The technical solution of the present invention has the following technical effects compared with the prior art:

[0008] The refrigerator of the present invention is provided with a vacuum packaging device on the door body, which can perform vacuum packaging on the storage bags containing food ingredients to be put into the refrigerator; compared with the existing vacuum drawers, the vacuum packaging device of the present invention can perform vacuum fresh-keeping treatment on the food ingredients stored in various compartments of the refrigerator, expanding the fresh-keeping range; in addition, the pipeline connector is inserted into the opening of the partition rib. When installing the vacuum pumping assembly, each vacuum pumping assembly can be installed in each installation chamber first, then the pipeline connector with the pipeline is inserted on the partition rib, and the other end of the pipeline is connected and inserted in place with each vacuum pumping assembly. The installation of the entire vacuum pumping assembly and the pipeline is simple and reliable, and the pipeline can be embedded inside the seat body of the mounting seat, avoiding the problem of messy pipeline routing caused by too many pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The following will describe in detail the preferred embodiments of the present invention with the help of the drawings, which will help to understand the purpose and advantages of the present invention, wherein:

[0010] Figure 1 is a schematic structural diagram of the refrigerator according to Embodiment 1 of the present invention;

[0011] Figure 2 is a schematic structural diagram of the refrigerating door body according to Embodiment 1 of the present invention;

[0012] Figure 3 is an exploded view of the refrigerating door body according to Embodiment 1 of the present invention;

[0013] Figure 4Side sectional view of the vacuum packaging device of the present invention;

[0014] Figure 5 Front and reverse structural schematic diagrams of the upper support of the vacuum packaging device of the present invention;

[0015] Figure 6 Assembly schematic diagram of the upper support, driving device and vacuum pumping assembly in the vacuum packaging device of the present invention;

[0016] Figure 7 Exploded view of the upper support, driving device and vacuum pumping assembly in the vacuum packaging device of the present invention;

[0017] Figure 8 Connection relationship diagram of the upper support and the filter container in the vacuum packaging device of the present invention;

[0018] Figure 9 Connection relationship diagram of the upper support and the filter net in the vacuum packaging device of the present invention;

[0019] Figure 10 Stereogram of the vacuum pump in the vacuum packaging device of the present invention;

[0020] Figure 11 Cross-sectional view of the silencer in the vacuum packaging device of the present invention;

[0021] Figure 12 Exploded view of the mounting seat and the pipeline connector in the vacuum packaging device of the present invention;

[0022] Figure 13 Exploded view of the upper support, heating device and sealing ring of the present invention;

[0023] Figure 14 Partial cross-sectional view of the connection between the upper support and the heating device of the present invention;

[0024] Figure 15 Schematic diagram of the connection relationship between the upper support and the driving device when the upper support is in the initial position of the present invention;

[0025] Figure 16 Schematic diagram of the connection relationship between the upper support and the driving device when the upper support is in the lowered position of the present invention;

[0026] Figure 17A Schematic diagram of the structure of the lower support, heat preservation small door and door body in the locked state in Embodiment 1 of the present invention;

[0027] Figure 17B Schematic diagram of the structure of the lower support, heat preservation small door and door body in the unlocked state in Embodiment 1 of the present invention;

[0028] Figure 17C Schematic diagram of the structure of the lower support and the heat preservation small door removed from the door body in Embodiment 1 of the present invention;

[0029] Figure 18 It is a front and reverse structural schematic diagram of the thermal insulation small door and the lower support in the assembled state in Embodiment 1 of the present invention;

[0030] Figure 19 It is an exploded view of the thermal insulation small door, the lower support and the lock hook assembly in Embodiment 1 of the present invention;

[0031] Figure 20 It is a structural schematic diagram of the lock hook assembly installed on the thermal insulation small door in Embodiment 1 of the present invention;

[0032] Figure 21 It is a partial cross-sectional view of the lock hook assembly installed on the thermal insulation small door in Embodiment 1 of the present invention;

[0033] Figure 22 It is a three-dimensional view of the lower lock hook in Embodiment 1 of the present invention;

[0034] Figure 23 It is a front and reverse structural schematic diagram of the upper lock hook in Embodiment 1 of the present invention;

[0035] Figure 24A It is a structural schematic diagram of the lower support, the thermal insulation small door and the door body in the locked state in Embodiment 2 of the present invention;

[0036] Figure 24B It is a structural schematic diagram of the lower support and the thermal insulation small door removed from the door body in Embodiment 2 of the present invention;

[0037] Figure 25 It is an exploded view of the thermal insulation small door, the lower support and the lock hook assembly in Embodiment 2 of the present invention;

[0038] Figure 26A It is a structural schematic diagram of the lower support, the thermal insulation small door and the door body in the locked state in Embodiment 3 of the present invention;

[0039] Figure 26B It is a structural schematic diagram of the thermal insulation small door and the door body in the unlocked state in Embodiment 3 of the present invention;

[0040] Figure 26C It is a structural schematic diagram of the lower support and the thermal insulation small door removed from the door body in Embodiment 3 of the present invention;

[0041] Figure 27 It is a structural schematic diagram of the refrigerator in Embodiment 4 of the present invention;

[0042] Figure 28 It is an exploded view of the refrigerating door body in Embodiment 4 of the present invention;

[0043] Figure 29 It is a structural schematic diagram of the refrigerator in Embodiment 5 of the present invention;

[0044] Figure 30 It is an exploded view of the refrigerated door body in Embodiment 5 of the present invention;

[0045] Figure 31 It is an exploded view of the lower support in Embodiment 5 of the present invention;

[0046] Figure 32A It is a schematic structural view of the lower support and the door body in the locked state in Embodiment 5 of the present invention;

[0047] Figure 32B It is a schematic structural view of the lower support in the state of being removed from the door body in Embodiment 5 of the present invention;

[0048] Figure 33A It is a schematic structural view of the lower support and the door body in the locked state in Embodiment 6 of the present invention;

[0049] Figure 33B It is a schematic structural view of the lower support in the state of being removed from the door body in Embodiment 6 of the present invention. Detailed implementation manners

[0050] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0052] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Embodiment 1

[0054] Figure 1 It is a perspective view of a specific implementation manner of the refrigerator of the present invention; Refer to Figure 1, the refrigerator 1 of this embodiment has an approximate cuboid shape. The appearance of the refrigerator 1 is defined by a storage compartment 100 that defines a storage space and a plurality of door bodies 200 disposed in the storage compartment 100. Among them, referring to Figure 2 , the door body 200 includes a door body outer shell 210 located outside the storage compartment 100, a door body inner liner 220 located inside the storage compartment 100, an upper end cover 230, a lower end cover 240, and a heat insulation layer located between the door body outer shell 210, the door body inner liner 220, the upper end cover 230, and the lower end cover 240; generally, the heat insulation layer is filled with foaming material.

[0055] The storage compartment 100 has an open box body, and the storage compartment 100 is vertically partitioned into a lower freezer compartment A and an upper refrigerator compartment 100B. Each of the separated spaces may have an independent storage space. Specifically, the freezer compartment 100A is located at the lower side of the storage compartment 100 and can be selectively covered by a drawer-type freezer door A. The space above the freezer compartment 100A is partitioned into left and right sides to respectively form the refrigerator compartment 100B, and the refrigerator compartment 100B can be selectively opened or closed by a refrigerator door body 200B pivotally mounted on the refrigerator compartment 100B.

[0056] As Figure 3 , Figure 4 shown, a vacuum packaging device 300 is provided on the door body 200 of the refrigerator. The vacuum packaging device 300 is used to evacuate and plasticize a storage bag; the vacuum packaging device 300 can be provided on the freezer door body 200A or on the refrigerator door body 200B. Since the refrigerator door body 200B is located on the upper side, in order to conform to the user's usage habits, it is usually preferably provided on the refrigerator door body 200B.

[0057] As Figures 4 - 1 Figure 7 is an embodiment of the vacuum packaging device 300. In this embodiment, as Figure 4 shown, the vacuum packaging device 300 includes: a lower support 310 provided with a first open cavity 311; an upper support 320 provided with a second open cavity 321. The upper support 320 can move in a direction approaching or away from the lower support 310 under the drive of a drive device 340. After the upper support 320 moves in place in the direction approaching the lower support 310, the first open cavity 311 is docked and sealed with the second open cavity 321 to form a vacuum pumping area 301. The above-mentioned vacuum packaging device 300 realizes the locking and unlocking of the lower support 310 and the upper support 320 by controlling the automatic lifting of the drive device 340, realizes automatic vacuum packaging, and improves the intelligent level of the refrigerator.

[0058] Specifically, in order to improve the sealing performance of the vacuum pumping area 301, as Figure 4As shown, a sealing portion for sealing the evacuated area 301 is provided on the opposing surfaces of the lower support 310 and the upper support 320. Specifically, the lower support 310 is provided with a first sealing groove 313 on the outer periphery of the first open cavity 311, and the upper support 320 is provided with a second sealing groove 323 on the outer periphery of the second open cavity 321. The positions of the first sealing groove 313 and the second sealing groove 323 are opposite to each other and a sealing ring 350 is provided inside. The two sealing rings 350 provided in the first sealing groove 313 and the second sealing groove 323 seal the evacuated area 301 inside, achieving reliable sealing of the evacuated area 301.

[0059] Specifically, as Figure 5 shown, a limiting portion is provided in the first open cavity 311 or the second open cavity 321 for limiting the insertion position of the storage bag inserted into the evacuated area 301 to prevent the opening position of the storage bag from extending out of the evacuated area 301; specifically, the limiting portion is a limiting rib 322 provided in the first open cavity 311 or the second open cavity 321, and the height of the limiting rib 322 is greater than the depth of the first open cavity 311 or the second open cavity 321; the length of the limiting rib 322 is slightly lower than the length of the first open cavity 311 or the second open cavity 321. When the user inserts the storage bag into the evacuated area 301, the limiting rib 322 can block the storage bag from continuing to be inserted inward; in other embodiments, the evacuated area 301 can also be provided with a position detection device. Specifically, a microwave sensor or an infrared sensor can be used to detect the presence or absence of the storage bag inserted into the evacuated area 301, and then send a signal indicating whether the storage bag is in place to the controller. The controller can control the opening of the vacuum pump according to the in-place signal. By providing the position detection device, it can automatically detect whether the storage bag is in place, and the controller can then automatically control the on-off of the vacuum pump.

[0060] The vacuum packaging device 300 further includes a vacuum pumping assembly 330, as Figure 6 、 Figure 7As shown, the vacuum pumping assembly 330 includes a vacuum pump 331 communicated with the vacuum pumping area 301 through a pipeline 335; a pressure detection device 332 and a gas balance device 333 are further provided on the pipeline 335. Among them, the pressure detection device 332 is specifically a pressure sensor for detecting the pressure in the vacuum pumping area 301; the gas balance device 333 is specifically an electric balance valve. When the electric balance valve is opened, the vacuum pumping area 301 is communicated with the external gas. When the user performs vacuum packaging, the vacuum pump 331 is started to perform vacuum pumping on the vacuum pumping area 301. When the pressure detection device 332 detects that the pressure in the vacuum pumping area 301 reaches the set negative pressure value, the controller controls the vacuum pump 331 to stop. By setting the pressure sensor, the vacuum degree of the vacuum pumping area 301 can be controlled, and the vacuum pump 331 can be turned on and off according to the detection value of the pressure sensor, ensuring the vacuum pumping effect. After the vacuum pumping and packaging operations are completed, by opening the above-mentioned electric balance valve, the air pressure in the vacuum pumping area 301 can be increased to the standard atmospheric pressure, facilitating the user to take out the storage bag.

[0061] To prevent foreign objects in the vacuum pumping area 301 from entering the vacuum pump 331 through the pipeline 335, a filtering and protecting device is further included on the pipeline 335. In one implementation, as Figure 8 shown, the filtering and protecting device is specifically a filtering container 334 connected in series on the pipeline 335. The upper end of the filtering container 334 is provided with an inlet and an outlet. The inlet is communicated with the vacuum pumping area 301 through a pipeline, and the outlet is communicated with the vacuum pump 331 through a pipeline; foreign objects in the vacuum pumping area 301 enter the filtering container 334 through the pipeline 335 and are retained at the bottom of the filtering container 334, preventing foreign objects from entering the vacuum pump 331. To facilitate the cleaning of the filtering container 334, more specifically, the filtering container 334 includes a tank body with an opening and an upper cover detachably connected to the tank body. The inlet and the outlet are arranged on the upper cover. During cleaning, the tank body can be removed for cleaning, avoiding the problem that the sealing performance of the pipeline 335 deteriorates due to frequent disassembly and assembly of the pipeline 335.

[0062] In another implementation, as Figure 9As shown, the filtering and protecting device is a filter screen 336 arranged on the pipeline 335. Specifically, for the convenience of disassembly and assembly, the filter screen 336 is arranged at the ventilation hole 324 at the connection position between the upper support 320 and the pipeline 335. After the user moves the upper support 320 to the highest position, the filter screen 336 can be disassembled, assembled or cleaned from the lower side. The connection hole between the vacuum extraction area 301 and the pipeline 335 can be one. Of course, in order to avoid the connection hole in the vacuum extraction area 301 being blocked by foreign matters and causing vacuum extraction failure, the pipeline 335 can also be connected to the pipeline 335 through two or more connection holes in a parallel arrangement, and then connected to the main pipeline through a three-way or multi-way connector; the pressure sensor and the electronic balance valve are arranged on the main pipeline.

[0063] When the vacuum pump operates, it will generate relatively large vibration noise, bringing a bad use experience to the user. Since the noise generated during the operation of the vacuum pump 331 is mainly caused by the vibration of the vacuum pump 331 hitting the outer mounting seat 305, to solve this problem, as Figure 6 , Figure 7 shown, a first vibration damping member 331A is provided between the vacuum pump 331 and the mounting seat 305, and the first vibration damping member 331A is made of a flexible material, such as damping sponge, etc.

[0064] The vacuum pump 331 includes a square pump body part 3311 and a cylindrical motor part 3312; the first vibration damping member 331A is a damping sleeve sleeved on the pump body part 3311.

[0065] As Figure 12 shown, the mounting seat 305 includes: a seat body, on which a vacuum pump mounting cavity 3051 for mounting the vacuum pump is formed; and a cover body 306, the cover body 306 is connected to the seat body 305 to close the vacuum pump mounting cavity 3051; wherein, a plurality of protruding ribs 3051A are formed on the inner walls of the cover body 306 and the vacuum pump mounting cavity 3051, and the first damping sleeve contacts the ribs 3051A.

[0066] Since the vacuum pump will generate a lot of noise when exhausting, affecting the user's use experience, in order to further reduce the noise when the vacuum pump exhausts, a muffler 339 is also provided on the mounting seat 305, and the air inlet 3393 of the muffler 339 is communicated with the exhaust port of the vacuum pump 331.

[0067] Specifically, as Figure 11As shown, the silencer 339 includes a first connecting member 3391 and a second connecting member 3392. The first connecting member 3391 and the second connecting member 3392 are connected to form a silencing cavity 339A. The silencing cavity 339A includes a first part with a larger cross-section and a second part with a smaller cross-section. The air inlet 3393 of the silencer is arranged on the first part, and the air outlet 3394 of the silencer is not arranged on the same surface as the air inlet.

[0068] The first connecting member 3391 is a square box body with an opening, and the second connecting member 3392 is a cylindrical body with an opening. An extension edge is provided at the open end of the cylindrical body. The square box body is arranged opposite to the open end of the cylindrical body, and the extension edge is connected in cooperation with the inner wall of the square box body. The air inlet 3393 of the silencer 339 is arranged on the wall surface of the square box body opposite to the open end, and the air outlet 3393 of the silencer 339 is arranged on the wall surface of the square box body adjacent to the open end. The gas discharged by the vacuum pump 331, as the carrier of the vacuum pump sound source, carries sound waves into the silencing cavity 339A. Since the cross-sectional area of the silencing cavity 339A is variable, larger at the lower part and smaller at the upper part, some sound waves will be affected by the change in cross-sectional area during movement in the silencing cavity 339A, causing the frequency of the sound waves to change to the opposite of the original inherent sound wave frequency, thus canceling each other out and being converted into heat energy, thereby achieving the effect of silencing.

[0069] Specifically, as Figure 6 、 Figure 7 shown, the driving device 340 and the vacuum pumping assembly 330 are both installed on the mounting seat 305 located above the upper support 320. The upper support 320 is provided with a ventilation hole 324 for communicating with the vacuum pumping assembly 330. Among them, the seat body of the mounting seat 305 is provided with a vacuum pump installation cavity 3051 at the middle position, driving device installation cavities 3052 on the left and right sides of the vacuum pump installation cavity 3051, a filter container installation cavity 3053 below the vacuum pump installation cavity 3051; a silencer installation cavity 3054 above the vacuum pump installation cavity 3051, and other component installation cavities 3055 above one of the driving device installation cavities 3052. The other component installation cavities 3055 are used to install an electric balance valve, a pressure sensor, etc.

[0070] In order to further reduce the vibration of the silencer 339, a second damping member is arranged between the silencer 339 and the silencer installation cavity 3054. The second damping member is made of a flexible material, such as damping sponge, etc.

[0071] Since each component in the vacuum pumping assembly: the vacuum pump 331, the pressure sensor 332, the gas balance device 333, and the filter protection device 334 need to be connected through the pipeline 305; and in order to achieve modular assembly, these components need to be assembled as a whole on the mounting base 305; therefore, in order to make the pipeline connection between the vacuum pumping assemblies installed in the mounting base 305 more reasonable and easier during pipeline assembly on a mounting base with a relatively compact structure, a pipeline connector is provided on the pipeline. Specifically, the pipeline connector is a four-way connector 308A. One path of the four-way connector 308A is connected to the air extraction port of the vacuum pump 331, one path is connected to the pressure sensor 332, one path is connected to the electric balance valve 333, and one path is connected to the filter container 334; wherein, a guiding structure is provided between the four-way connector 308A and the mounting base 305, and the four-way connector 308A is slidably inserted onto the mounting base 305.

[0072] Specifically, as Figure 12 shown, the mounting base 305 is formed with several partition ribs 3056, and the partition ribs 3056 are used to divide the mounting base 305 into different mounting chambers; one of the partition ribs 3056 has an opening, and the partition rib 3056 is provided with a sliding protrusion along the thickness direction of the mounting base 305 at the opening; the four-way connector 308A includes a plate body 3381 and insertion ports 3382 respectively provided on both sides of the plate body; the plate body 3381 is correspondingly provided with a sliding groove along the thickness direction of the mounting base 305, and the plate body 3381 is slidably inserted on both sides of the opening of the partition rib 3056.

[0073] When installing the pipeline 305 of the vacuum pumping assembly 330, first install the vacuum pump 331, the pressure sensor 332, the gas balance device 333, and the filter protection device 334 on the corresponding mounting positions of the mounting base 305 respectively; then insert the four pipelines into the four insertion ports 3382 of the four-way connector 338A, and then insert the plate body 3381 of the four-way connector 338A into the opening of the partition rib 3056. The free ends of each pipeline 305 are respectively connected to the air extraction port of the vacuum pump 331, the pressure sensor 332, the electric balance valve 333, and the outlet of the filter container 334, and the installation of the entire vacuum pumping assembly can be realized, with a compact structure and convenient assembly. Moreover, this structure can embed the pipelines inside the seat body of the mounting base 305, avoiding the problem of messy routing of multiple pipelines.

[0074] In order to achieve the vacuum pumping treatment of the vacuum tank body, as Figure 7As shown, a vacuum extraction pipe connector 337 communicating with the vacuum extraction assembly through a pipeline is further provided on the mounting base 305. When the user evacuates the vacuum tank body, the vacuum tank body is plugged onto the vacuum extraction pipe connector 337 through a connecting pipe, and the vacuum pump 331 is turned on for vacuum extraction. When the pressure detection device 332 detects that the pressure in the pipeline reaches the set negative pressure value, the vacuum pump 331 is controlled to stop.

[0075] Since the vacuum extraction interface 337 is directly communicated with the filter container 334 through the pipeline 305, but since they are in two different chambers, a pipeline connector for connecting the pipeline between the vacuum extraction interface 337 and the filter container 334 is further included in the mounting base 305. Specifically, the pipeline connector is a two-way connector 338B. The two-way connector 338B includes a plate body 3381 and insertion interfaces 3382 located on both sides of the plate body 3381. One end of the insertion interface 3382 is communicated with the vacuum extraction interface 337 through a pipeline; the other end is communicated with the filter container 334 through a pipeline.

[0076] Since there are many pipeline components in the mounting base, in order to make the pipeline connections between the vacuum extraction components more reasonable and orderly and avoid the pipelines being in a mess; two pipeline connectors are inserted from the inside to the outside at the opening of the partition rib 3056, wherein the width of the inner opening is smaller than that of the outer opening. During installation, first, the two-way connector 338B is inserted into the opening with a smaller width; after the pipelines of the two-way connector 338B are connected, the four-way connector 338A is connected to the outer opening, and then the pipeline connection is carried out. By adopting the method of a narrow inner opening and a wide outer opening, a limiting structure for the pipeline connector is formed, which can make the two pipeline connectors have better positioning. At the same time, the whole device has a simple structure and is convenient to install.

[0077] To maintain the overall aesthetics of the outer surface of the refrigerator door body 200 and the convenience of applying the vacuum packaging device 300, as Figure 3 shown, the door body housing 210 is provided with an inwardly recessed mounting cavity 211. After the driving device 340 is connected to the upper support 320, it is connected to the mounting base 305 by screws. After the vacuum extraction assembly 330 is connected to the ventilation hole 324 on the upper support 320, it is installed on the mounting base 305. After connecting the cover body 306 to the vacuum pump mounting cavity 3051 to form a component, the side of the mounting base 305 with the cavity faces the door body housing 210, and the whole is installed in the mounting cavity 211 through screws passing through the ear plates on both sides of the mounting base 305. Each component realizes modular assembly, and each part is not exposed on the outer surface, and the integrity of the device is better.

[0078] AsFigure 4 As shown, the vacuum packaging device 300 further includes a packaging area 302 located outside the evacuation area 301. The packaging area 302 is used to perform plastic sealing on the storage bag after the evacuation is completed. An insulating pad 360 and a heating device 370 are oppositely arranged in the packaging area 302. Specifically, the heating device 370 is installed in a groove on the lower surface of the upper support 320, and the insulating pad 360 is installed in a groove on the upper surface of the lower support 310 of the upper support 320. After the upper support 320 moves to form a sealed evacuation area 301 with the lower support 310, the insulating pad 360 in the packaging area 302 abuts against the heating device 370. After the evacuation is completed, the heating device 370 in the packaging area 302 can quickly plastic-seal the storage bag. After setting the working duration of the heating device 370, the driving device 340 is controlled to drive the upper support 320 to move upward, and the user can take out the storage bag to complete the plastic sealing of the storage bag.

[0079] More specifically, as Figure 13 、 Figure 14 shown, the heating device 370 includes a heating wire 371. A heat conduction plate 373 is arranged below the heating wire 371 to spread the heating area of the heating wire 371, so as to increase the plastic-sealing area of the storage bag and make the plastic sealing firm. The heating wire 371 extends along the length direction of the upper support 320 and bends upward on both sides of the upper support 320. The free ends of the heating wire 371 extending to the upper side of the upper support 320 are fixed to the upper support 320 through an insulating plate 372. Specifically, the insulating plate 372 is made of insulating material and is formed into a bent plate, covering the outside of the heating wire 371 to prevent the heating wire 371 from being exposed outside. Further, the two free ends of the heating wire 371 are respectively connected to two wires led out through a wiring terminal 374 through a spring 375. By setting the spring 375, the heating wire 371 can always be in a tensioned state, so that the heating wire 371 has a high flatness, and the heat conduction plate 373 located below the heating wire 371 is in close contact with the storage bag, avoiding the problem that the plastic sealing cannot be performed due to the unevenness of the heating wire 371 resulting in non-solid contact at individual positions.

[0080] In the above vacuum packaging device, the driving device 340 can be an electric driving device or a pneumatic driving device. The pneumatic driving device occupies a large space. Therefore, in this embodiment, the driving device 340 adopts an electric driving device. Specifically, as Figure 7 、 Figure 15 and Figure 16As shown, the driving device 340 includes a motor 341 and a transmission mechanism. The transmission mechanism is used to convert the rotational motion of the motor into a linear motion, and the output end of the transmission mechanism is connected to the upper support. The transmission mechanism includes a first gear 342 fixedly connected to the output shaft of the motor; a second gear 343 meshing with the first gear 342; a third gear 344 fixedly connected to the second gear 343, and an output rack 345 meshing with the third gear 344. Wherein, a pin hole is provided on the lower side of the output rack 345, and the upper support 320 is connected to the output rack 345 through a pin shaft 346 inserted into the pin hole. Through the above transmission mechanism, the rotation of the motor 341 is converted into the up and down movement of the upper support 320.

[0081] Specifically, as Figure 7 shown, a connecting plate 347 is provided between the upper support 320 and the driving device 340. The connecting plate 347 is threadedly connected to the upper support 320, and a guiding groove 3471 is formed on the connecting plate 347. The lower end of the output rack 345 is inserted into the guiding groove 3471. Long strip-shaped pin holes are respectively provided on the guiding groove 3471 and the lower end of the output rack 345. The pin shaft 346 passes through the pin holes of the guiding groove 3471 and the output rack 345. There is a gap between the lower end surface of the output rack 345 and the bottom of the guiding groove 3471, and an elastic body 348 is provided in the gap.

[0082] As Figure 15 shown, at the initial position, the upper support 320 is located at the highest position; in the pressing stage, as Figure 16 shown, the driving device 340 drives the upper support 320 to move downward. In order to ensure the tight fit between the lower support 310 and the upper support 320, usually the set rotation stroke of the motor 341 is used as the in-place judgment signal. Therefore, setting the elastic body 348 between the output rack 345 and the guiding groove 3471 can enable the output rack 345 to continue to move downward for a certain distance after the upper support 320 moves downward to contact the lower support 310, so that the elastic body 348 is compressed, preventing the motor 341 from stalling, playing a protective role for the motor 341, and enabling the pressing force to remain stable.

[0083] In the vacuum pumping stage, a sealed vacuum pumping area 301 is formed between the lower support 310 and the upper support 320. Due to the decrease in air pressure, under the action of atmospheric pressure, the upper support 320 moves downward. At this time, due to the existence of the long strip-shaped pin hole, when the upper support 320 moves downward, the output rack 345 can remain stationary, playing a protective role for the entire driving device 340.

[0084] In order to precisely control the moving displacement of the upper support 320 and then determine whether the upper support 320 has moved in place to form a sealed space in the vacuum pumping area 301; in one implementation, the motor 341 is a stepper motor 341, and it is determined whether the upper support 320 has moved in place by detecting the rotation stroke of the stepper motor 341. In another implementation, a microswitch is provided on the lower support 310 or the upper support 320; after the upper support 320 moves in place, the microswitch is triggered, and the controller controls the drive device 340 to stop and lock at the current position according to the feedback signal of the microswitch.

[0085] The drive device 340 can be set to one, and the output gear is located in the middle area of the upper support 320. In this case, it is easy to cause the edge area of the upper support 320 to fit less tightly with the lower support 310, resulting in air leakage in the vacuum pumping area 301; therefore, in order to provide the sealing performance of the vacuum pumping area 301, the drive devices 340 are respectively arranged on both sides of the upper support 320. Correspondingly, one connecting plate 347 is provided, and two guiding grooves 3471 are provided on the connecting plate 347; the two output racks 345 respectively extend into the guiding grooves 3471.

[0086] When a user applies the vacuum packaging device 300 to seal a food bag, especially when sealing foods with powder such as flour or liquids, etc., during vacuum pumping, the powder or liquid may enter the vacuum pumping area 301 and finally accumulate in the first open cavity 311 of the lower support 310; therefore, in order to facilitate the user to clean the food residues in the lower support 310, the lower support 310 is detachably installed relative to the door body 200.

[0087] Among them, the way of installing the lower support 310 on the door body 200 is not unique. In this embodiment, as Figures 17A - 17C shown, the lower support 310 can be detachably installed on the door body 200 from the inner side of the door body 200 (i.e., the side with the inner liner). Since the door body 200 of the refrigerator must ensure heat insulation, a heat insulation small door 250 is provided on the inner side part of the lower support 310 facing the storage compartment 100. Among them, as Figure 17C shown, an installation hole 201 communicating inside and outside is opened on the door body 200, and the lower support 310 and the heat insulation small door 250 are inserted into the installation hole 201 from the inner side of the door body 200, realizing the disassembly and cleaning of the lower support 310 and the heat insulation performance of the door body 200 at the same time.

[0088] In one implementation, as Figure 18 shown, the lower support 310 and the heat insulation small door 250 are integrally formed; as Figure 19 、 Figure 20As shown, the lower support 310 and the heat-insulating small door 250 are formed by a first housing 251 and a second housing 252 having an open cavity structure and a heat-insulating member disposed between the first housing 251 and the second housing 252. Among them, the first housing 251 and the second housing 252 are snap-connected. The first housing 251 is provided with an extension arm 2511 in a direction away from the second housing 252. The lower support 310 is formed on the extension arm 2511. The first open cavity 311 is an opening groove formed on the upper side of the extension arm 2511, and a first sealing groove 313 is provided on the outer periphery of the opening groove.

[0089] To further ensure the heat insulation of the door body 200 and avoid cold leakage through the gap between the mounting hole 201 and the heat-insulating small door 250, as Figure 18 、 Figure 19 shown, a small door seal 253 is provided between the heat-insulating small door 250 and the inner door liner 220 of the door body. Specifically, the first housing 251 is provided with a support arm 2512 at a position where it cooperates with the inner door liner 220. The size of the support arm 2512 is larger than the size of the mounting hole 201. An installation groove surrounding the mounting hole 201 is provided on the support arm 2512, and the small door seal 253 is installed in the installation groove.

[0090] Specifically, to ensure that the heat-insulating small door 250 is reliably fixed to the door body 200, a locking device 400 is provided between the heat-insulating small door 250 and the inner door liner 220 of the door body. The locking device 400 is used to lock or unlock the heat-insulating small door 250 on the door body 200.

[0091] As Figures 17A - 17C 、 Figure 18 、 Figure 19 shown, the locking device 400 includes a lock hook assembly provided on the heat-insulating small door 250 and a locking groove 221 provided on the inner door liner 220 of the door body. The lock hook assembly includes a lock hook penetrating through the heat-insulating small door 250. The lock hook can be switched between a first position and a second position. When the lock hook is in the first position, it can cooperate with the locking groove 221 to lock the heat-insulating small door 250. When the lock hook is in the second position, it disengages from the locking groove 221 to unlock the heat-insulating small door 250.

[0092] Specifically, to improve the reliability of the locking device 400, two locking grooves 221 and lock hooks are respectively provided. Among them, the locking grooves 221 are located on the upper and lower sides of the mounting hole 201. As Figures 18 - 23 shown, the lock hook assembly includes an upper lock hook 420, a lower lock hook 410, and a return spring 430. As Figure 22As shown, the lower locking hook 410 includes a hooking portion 414 that cooperates with the lower locking groove 221, a hinge portion 412 rotatably connected to the heat preservation small door 250, and a pulling portion 411 located on the lower side of the heat preservation small door 250. Among them, the pulling portion 411 and the hooking portion 414 are respectively located on both sides of the hinge portion 412. The lower locking hook 410 further includes a lower connecting portion 413 connected to the upper locking hook 420, and the lower connecting portion 413 extends above the pulling portion 411. Specifically, the end of the lower connecting portion 413 is formed into a T-shaped protrusion 4131. As Figure 20 shown, the upper locking hook 420 includes a hooking portion 421 that cooperates with the upper locking groove 221, and an upper connecting portion 423 connected to the lower locking hook 410. Specifically, the lower end portion of the upper connecting portion 423 is formed into an open groove structure 4231, and the T-shaped protrusion 4131 is inserted into the open groove 4231 to realize the connection between the upper locking hook 420 and the lower locking hook 410. A return spring 430 is provided between the upper locking hook 420 and the upper end surface of the heat preservation small door 250. More specifically, a connecting shaft 422 is formed on the upper locking hook 420, and the return spring 430 is sleeved on the connecting shaft 422.

[0093] As Figure 20 shown, a guiding and positioning portion is formed on the inner surface of the second housing 252, and the upper connecting portion 423 is clamped on the guiding and positioning portion, and the upper locking hook 420 can slide along the guiding and positioning portion. Specifically, the guiding and positioning portion is a hook 2521 formed on the inner surface of the second housing 252, and the hook 2521 is located on the left and right sides of the upper connecting portion 423 and extends a certain distance in the up and down direction. The upper connecting portion 423 is clamped between the two hooks 2521.

[0094] In the initial state, under the elastic force of the return spring 430, the upper locking hook 420 and the lower locking hook 410 are located at the first position to lock the heat preservation small door 250 and the inner liner 220 of the door body; when the user manually pulls the lower locking hook 410, the lower locking hook 410 rotates around the hinge portion 412, and the hooking portion 414 moves downward to disengage from the lower locking groove 221. At the same time, the connecting portion pushes the upper locking hook 420 upward, and the upper locking hook 420 disengages from the upper locking groove 221. The upper locking hook 420 and the lower locking hook 410 are located at the second position to unlock the heat preservation small door 250 and the inner liner 220 of the door body.

[0095] To ensure the aesthetic appearance of the refrigerator door body 200, referring to Figure 1 、 Figure 2As shown, a bar door 260 is provided on the refrigerator door body 200 at the area where the vacuum packaging device 300 is located. The lower end of the bar door 260 is hinged to the door body 200 and can be flipped to a position perpendicular to the surface of the door body housing 210. The upper end of the bar door 260 is connected to the door body housing 210 through a first push-and-eject switch 212. With the structure of the bar door 260, when the bar door 260 is opened, a storage bag containing food can be placed on the bar door 260 for vacuum packaging treatment, which is convenient for users to operate. When the bar door 260 is closed, the appearance of the door body 200 is ensured to be beautiful.

[0096] The inner side of the bar door 260 further includes an operation panel 270 covering the outside of the installation cavity. An insertion interface 271 is formed on the operation panel 270, and the lower surface of the insertion interface 271 is flush with the upper surface of the first open cavity 311. In this way, the vacuum packaging device 300 can be hidden entirely behind the operation panel 270. When the user performs vacuum packaging, the opening of the storage bag can be directly inserted into the insertion interface 271 of the operation panel 270 and directly extended to the upper surface of the first open cavity 311. When the upper support 320 moves downward, the opening of the storage bag can be placed in the vacuum extraction area 301. Specifically, the operation panel 270 is detachably connected to the door body housing 210. A display and control device 272 is further provided on the operation panel 270. The display and control device 272 includes an indicating device for displaying the working state of the vacuum packaging device 300; and a control button for controlling the start or stop of the vacuum packaging device 300. The user can determine whether the storage bag can be taken out according to the working state of the vacuum packaging device 300 displayed by the display and control device 272.

[0097] When the user applies the vacuum packaging device 300, the storage bag to be packaged is inserted through the insertion interface 271 provided on the operation panel 270. After the insertion is in place (the storage bag abuts against the limit rib 322), the user triggers the start button on the operation panel 270, and the motor 341 starts. The upper support 320 is controlled to descend until the upper support 320 moves in place (the vacuum extraction area 301 is sealed), and then the vacuum pump 331 is controlled to start to perform vacuum extraction on the vacuum extraction area 301. The storage bag is vacuum-extracted through the opening of the storage bag located in the vacuum extraction area 301. When the pressure sensor detects that the pressure value reaches the set negative pressure value, the vacuum pump 331 is controlled to stop and the heating device 370 is started to work. After the heating device 370 works for a set time, the electric balance valve is controlled to start; then the linear motor 341 is controlled to start to control the upper support 320 to rise until the first open cavity 311 and the second open cavity 321 are separated; the display and control device 272 on the operation panel 270 indicates that the user can take out the storage bag, and the vacuum packaging of the storage bag is completed.

[0098] Example 2

[0099] The structure of the present embodiment 2 is basically the same as that of the embodiment 1, except that the connection method between the lower support 310 and the heat preservation door 250 is different. Figure 24A , Figure 24B As shown, the lower support 310 is detachably connected to the heat preservation door 250. Figure 25 The heat-insulating door 250 is formed by a first shell 251 with an open cavity structure and a second shell 252, and a heat-insulating member disposed between the first shell 251 and the second shell 252. The first shell 251 is snap-connected with the second shell 252, and the first shell 251 is provided with an extension arm 2511 in a direction away from the second shell 252, and the lower support 310 is detachably connected to the extension arm 2511.

[0100] Specifically, a first limiting portion extending upward is formed on the end of the extension arm 2511, and a second limiting portion matching the first limiting portion is formed on the lower side of the lower support 310, and the first limiting portion and the second limiting portion cooperate to position the lower support 310 on the extension arm 2511. More specifically, the first limiting portion is a limiting plate, and the limiting portion is a baffle formed at the bottom of the lower support 310 and extending downward, and the baffle is plugged into the inner side of the limiting plate to realize the installation of the lower support 310 on the extension arm 2511, so as to avoid the problem of the lower support 310 moving in the horizontal direction and causing the vacuum zone to be poorly sealed.

[0101] In order to further ensure the thermal insulation of the door body 200 and prevent cold from leaking through the gap between the mounting hole 201 and the thermal insulation small door 250, a small door seal 253 is provided between the thermal insulation small door 250 and the door body inner liner 220. Specifically, the first shell 251 is provided with a support arm 2512 at a position matching the door body inner liner 220, and the size of the support arm 2512 is larger than the size of the mounting hole 201. The support arm 2512 is provided with a mounting groove surrounding the mounting hole 201, and the small door seal 253 is installed in the mounting groove.

[0102] Specifically, in order to ensure that the small heat-insulating door 250 is reliably fixed to the door body 200 , a locking device 400 is provided between the small heat-insulating door 250 and the door body inner liner 220 .

[0103] like Figure 25As shown, the locking device 400 includes: a locking hook 440 hinged at the bottom of the heat-insulating small door 250, the middle part of the locking hook 440 is arranged to be connected to the hinge shaft with the heat-insulating small door 250, and is connected to the heat-insulating small door 250; it also includes a locking groove formed on the inner liner 220 of the door body and cooperating with the locking hook; and a reset torsion spring 450 mounted on the hinge shaft; one leg of the reset torsion spring rests on the heat-insulating small door 250, and the other leg rests on the locking hook 440; in the initial state, the torsion of the reset torsion spring 450 is suitable for the locking hook 440 to be in the first position, so that the heat-insulating small door 250 can be installed on the door body.

[0104] Specifically, in order to improve the aesthetics of the small door, a mounting groove is formed at the bottom of the small door, and the lock hook is installed inside the mounting groove. Figure 24A , Figure 24B The process of disassembling the insulation door 250 and the lower support 310 is shown. When the insulation door 250 and the lower support 310 are installed on the door body 200, the locking hook cooperates with the locking groove to realize the locking state of the insulation door 250; when the insulation door 250 and the lower support 310 need to be disassembled, the locking hook is pulled away from the locking groove, the locking device 400 is in the unlocked state, the insulation door 250 and the lower support 310 are pulled outward, and the lower support 310 can be removed from the insulation door 250 to clean the lower support 310. In this embodiment, the lower support 310 is detachably connected to the insulation door 250, which can make the cleaning of the lower support 310 simpler and more convenient.

[0105] Example 3

[0106] The structure of the present embodiment 2 is basically the same as that of the embodiment 1, and the difference lies in the connection method between the lower support 310 and the heat-insulating small door 250 and the door body 200.

[0107] like Figures 26A - 26C As shown, the lower support 310 and the heat preservation door 250 are independently arranged, and a limiting portion for limiting the position of the lower support 310 is provided on the lower side of the mounting hole 201, and one end of the lower support 310 abuts against the limiting portion, and the other end abuts against the heat preservation door 250. The heat preservation door 250 can be installed on the door body 200 using the locking device 400 in Example 1 or Example 2.

[0108] Example 4

[0109] The structure of the present embodiment 4 is basically the same as that of the embodiment 1, and the difference lies in the structure of the door body 200 in the area where the vacuum packaging device 300 is located.

[0110] Specifically, in this embodiment, with reference to Figure 27 , Figure 28 As shown, in order to ensure the aesthetic appearance of the refrigerator door body 200 and prevent the vacuum packaging device 300 from being exposed outside the door body 200, a secondary door panel 280 is provided at the area of the door body 200 where the vacuum packaging device 300 is located. The width of the secondary door panel 280 is the same as that of other areas of the door body 200. The secondary door panel 280 is connected to this area by means of snap connection or bonding, and the surface of the secondary door panel 280 is flush with the surfaces of other areas of the door body 200. An insertion opening 281 is formed on the secondary door panel 280, and the lower surface of the insertion opening 281 is flush with the upper surface of the first open cavity 311. When the user performs vacuum packaging, the opening of the storage bag can be directly inserted into the insertion opening 281 of the secondary door panel 280 and directly extended to the upper surface of the first open cavity 311. When the upper support 320 moves downward, the opening of the storage bag can be placed in the vacuum extraction area 301. A display and control device 282 is also provided on the secondary door panel 280. The display and control device 282 includes an indicating device for displaying the working state of the vacuum packaging device 300; and a control button for controlling the start or stop of the vacuum packaging device 300. The user can determine whether the storage bag can be evacuated according to the working state of the vacuum packaging device 300 displayed by the indicating device.

[0111] Example 5

[0112] The structure of this Example 5 is basically the same as that of Example 1, except for the way the lower support 310 is installed on the door body 200.

[0113] Specifically, as Figures 29 - 31 shown, in this embodiment, the lower support 310 is detachably installed on the door body 200 from the outside of the door body 200.

[0114] More specifically, the lower support 310 is detachably connected to the door body 200 by means of pushing and popping. Among them, as Figure 30 , Figure 31 shown, a second push-and-pop switch 380 is provided on the connection surface between the lower support 310 and the door body 200. The second push-and-pop switch 380 includes a push-and-pop lock 381 and a lock catch 382; a groove for setting the lock catch 382 is formed on the inner side surface of the lower support 310, and the push-and-pop lock 381 is fixed on the outer surface of the door body 200.

[0115] As Figure 32A shown, when the lower support 310 is pushed vertically along the door body 200, the push-and-pop lock 381 and the lock catch 382 are latched, and the lower support 310 is installed on the door body 200; as Figure 32BAs shown, when the lower support 310 is pushed again, the ejecting lock 381 releases the latch 382, allowing the lower support 310 to be detachably moved out of the door body 200. The user can clean the lower support 310 separately, which is convenient for the user to operate.

[0116] Embodiment 6

[0117] The structure of this Embodiment 6 is basically the same as that of Embodiment 5, except for the way the lower support 310 is installed on the door body 200.

[0118] Specifically, in this embodiment, as Figure 33A 、 Figure 33B shown, the lower support 310 is detachably installed on the door body 200 from the outside of the door body 200.

[0119] More specifically, the lower support 310 is detachably connected to the door body 200 by a snap connection. The lower support 310 and the door body 200 are respectively formed with mutually cooperating first snap portions 391 and second snap portions 392. The first snap portion 391 is formed on the lower surface of the lower support 310, specifically as a folded hook, and the second snap portion 392 is fixedly connected to the front surface of the door body 200. When the lower support 310 moves inward towards the door body 200 until the first snap portion 391 and the second snap portion 392 are engaged, the installation of the lower support 310 is achieved; when disassembling, the lower support 310 is pulled outward, and the first snap portion 391 and the second snap portion 392 elastically deform to disengage from each other, allowing the user to clean the lower support 310 separately, which is convenient for the user to operate.

[0120] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the embodiments. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A refrigerator, comprising a storage chamber and a door for opening or closing the storage chamber, wherein the door comprises a door shell, a door body and an insulating layer between the door shell and the door body; An installation cavity is formed in the door body, and a vacuum packaging device is provided in the installation cavity, characterized in that: The vacuum packaging device comprises: The vacuuming area and the packaging area are arranged from the inside to the outside, and the opening end of the storage bag is respectively plugged into the vacuuming area and the packaging area, the vacuuming area performs vacuum processing on the storage bag, and the packaging area is used to perform plastic sealing processing on the storage bag; The vacuum zone comprises a lower support and an upper support, wherein the lower support is provided with a first open cavity, and the upper support is provided with a second open cavity. The upper support can be moved toward or away from the lower support under the driving of a driving device. After the upper support moves toward the direction close to the lower support and is in position, the first open cavity is butted against the second open cavity and sealed to form a vacuum zone; A vacuum pumping assembly for vacuuming the vacuuming area, the vacuum pumping assembly being mounted on a mounting seat, the vacuum pumping assembly comprising a vacuum pump, and the vacuum pump being connected to the vacuuming area through a pipeline; The pressure detection device is used to detect the pressure of the vacuum zone, and the gas balance device is used to connect the vacuum zone with the external gas; The mounting seat comprises a seat body, on which a separation rib is formed, the separation rib is used to separate the seat body into a plurality of mounting chambers for mounting the vacuum pumping assembly, the separation rib has an opening, and a pipeline connector is provided on the pipeline, and the pipeline connector is plugged into the opening of the separation rib; The lower support can be detachably mounted on the door body from the inner side of the door body; The lower support is provided with a small heat preservation door on the inner side of the storage chamber, the door body is provided with a mounting hole communicating with the inside and the outside, and the lower support and the small heat preservation door are plugged into the mounting hole from the inner side of the door body; The heat-insulating door is formed by a first shell body with an open cavity structure and a second shell body and a heat-insulating member arranged between the first shell body and the second shell body, the first shell body is provided with an extension arm in a direction away from the second shell body, and the lower support is formed on the extension arm; A locking device is provided between the thermal insulation small door and the door body, and the locking device is used to lock or unlock the thermal insulation small door on the door body; The locking device comprises a lock hook assembly arranged on the heat-insulating small door and a locking groove arranged on the inner liner of the door body.

2. The refrigerator according to claim 1, characterized in that: The separation rib is provided with the opening extending along the thickness direction of the seat body, and the pipeline connector includes a plate body and plug-in ports arranged on both sides of the plate body, and the plate body of the pipeline connector is plugged into the opening of the separation rib.

3. The refrigerator according to claim 2, wherein: A guide structure is provided on the mating surface of the opening of the separation rib and the plate body of the pipeline connector, and the pipeline connector is slidably inserted on the separation rib along the guide structure.

4. The refrigerator according to claim 1, characterized in that: Along the thickness direction of the seat body, at least two of the pipe connectors are plugged into the opening from inside to outside.

5. The refrigerator according to claim 4, characterized in that: Two pipeline connectors are inserted into the opening from inside to outside, wherein the width of the opening cooperating with the inner pipeline connector is smaller than the width of the opening cooperating with the outer pipeline connector.

6. The refrigerator according to claim 1, characterized in that: The vacuum pumping assembly further includes a filtering and protecting device for filtering and sucking foreign matters in the pipeline. The filtering and protecting device includes a filtering container connected in series on the pipeline. An inlet and an outlet are arranged at the upper end of the filtering container. The inlet is communicated with the vacuum pumping area through a pipeline, and the outlet is communicated with the vacuum pump through a pipeline.

7. The refrigerator according to claim 6, characterized in that: The vacuum pumping assembly further includes a silencer, and an air inlet of the silencer is communicated with an exhaust port of the vacuum pump.

8. The refrigerator according to claim 7, characterized in that: A vacuum pump installation cavity located at the middle position is provided on the seat body, and the vacuum pump installation cavity is used for installing the vacuum pump; two driving device installation cavities located on the left and right sides of the vacuum pump installation cavity, and the two driving device installation cavities are respectively used for installing the driving devices; a filtering container installation cavity located on the lower side of the vacuum pump installation cavity, and the filtering container installation cavity is used for installing the filtering container; A silencer installation cavity located on the upper side of the vacuum pump installation cavity, and the silencer installation cavity is used for installing the silencer; another component installation cavity located on the upper side of one of the driving device installation cavities, and the other component installation cavity is used for installing the gas balance device and the pressure detection device.

9. The refrigerator according to claim 8, characterized in that: The mounting seat further includes a cover body, and the cover body is connected to the seat body for closing the vacuum pump installation cavity and the silencer installation cavity; a first damping member is arranged between the vacuum pump and the vacuum pump installation cavity; and / or a second damping member is arranged between the silencer and the silencer installation cavity.

10. The refrigerator according to claim 1, characterized in that: The mounting seat and the upper support are installed in the installation cavity; an operation panel covering the outside of the installation cavity is further included. An insertion port adapted to insert a bag to be packaged is formed on the operation panel. A display and control device is further arranged on the operation panel. The display and control device includes an indicating device for displaying the working state of the vacuum packaging device and a control button for controlling the start or stop of the vacuum packaging device.

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