WO2021063018A1

WO2021063018A1 - Refrigerator

Info

Publication number: WO2021063018A1
Application number: PCT/CN2020/095048
Authority: WO
Inventors: 王美艳; 张鹏; 杨帅岭; 杨春; 刘铁伟; 张建
Original assignee: 海信（山东）冰箱有限公司
Priority date: 2019-09-30
Filing date: 2020-06-09
Publication date: 2021-04-08

Abstract

Disclosed is a refrigerator, the outer side of a door of the refrigerator being provided with a vacuumising assembly, the vacuumising assembly comprising: a vacuum pump; a vacuumising pipe joint arranged on the door and being in communication with the vacuum pump, and being used for extracting gas from a sealed tank inserted into same by means of a pipeline; and a vacuum sealing apparatus arranged on the door, the vacuum sealing apparatus comprising: an upper support base and a lower support base, the upper support base and the lower support base being arranged in opposite positions; and a drive apparatus used for driving the movement of the upper support base and/or the lower support base such that the upper support base and the lower support base move closer together or further away, the opposite surfaces of the upper support base and the lower support base being sealed after abutting to form a sealed cavity; the sealed cavity is in communication with the vacuum pump, and is used for extracting gas from a storage bag with an opening placed in the sealed cavity.

Description

A kind of refrigerator

This disclosure requires a Chinese patent application filed with the Chinese Patent Office with an application number of 201921657710.6 and an invention title of "a kind of refrigerator" on September 3, 2019. It is required to be filed with the Chinese Patent Office on September 3, 2019 with an application number of 201910944013.7. , The priority of the Chinese patent application with the title of "a kind of refrigerator", the entire content of which is incorporated into this application by reference.

Technical field

The present disclosure relates to the technical field of home appliances, and in particular to a refrigerator.

Background technique

In recent years, people's health awareness has gradually increased, and the demand for food preservation has also increased. Refrigerators are the most commonly used household appliances for food storage, and food preservation storage has become an urgent technical requirement in the refrigerator field.

At present, various manufacturers have introduced different preservation technologies in response to the problem of food preservation and storage. For example, in the vacuum preservation technology, under the vacuum state, the conditions of food spoilage have changed. First of all, it is difficult for microorganisms and various promoting enzymes to survive in a vacuum environment, and it takes a long time to meet the requirements for microbial growth; secondly, in a vacuum state, the oxygen in the container is greatly reduced, various chemical reactions cannot be completed, and the food will not be oxidized. , Which also allows food to be kept fresh for a long time.

Summary of the invention

Some embodiments of the present disclosure disclose a refrigerator, including: a storage chamber, a door, and a vacuum assembly, the vacuum assembly includes a vacuum pump; a vacuum pipe joint, which is arranged on the door and communicates with the vacuum pump. For extracting gas from a sealed tank inserted into it through a pipeline; a vacuum packaging device is arranged on the door body, the vacuum packaging device includes: an upper support and a lower support, the upper support The position of the seat and the lower support are arranged oppositely; the driving device is used to drive the movement of the upper support and/or the lower support so that the upper support and the lower support approach or move away from each other, The opposite surfaces of the upper support and the lower support are sealed to form a sealed cavity after abutting; the sealed cavity communicates with the vacuum pump for extracting the storage bag whose opening is placed in the sealed cavity Gas treatment.

Description of the drawings

In order to explain the technical solutions of the present application more clearly, the following will briefly introduce the drawings needed in the embodiments. Obviously, for those of ordinary skill in the art, without paying creative labor, Other drawings can also be obtained from these drawings. In addition, the drawings in the following description can be regarded as schematic diagrams, and are not a limitation on the actual size of the products involved in the embodiments of the present disclosure.

Fig. 1 is a schematic structural diagram of a refrigerator according to some embodiments of the present disclosure;

Figure 2 is a schematic structural diagram of a refrigerating door according to some embodiments of the present disclosure;

Figure 3 is an exploded view of a refrigerator door according to some embodiments of the present disclosure;

Figure 4 is a side cross-sectional view of a vacuum packaging device according to some embodiments of the present disclosure;

FIG. 5 is a schematic diagram of the forward and reverse structure of the upper support of the vacuum packaging device according to some embodiments of the present disclosure;

6 is a schematic diagram of an assembly of an upper support, a driving device, and a vacuuming component in a vacuum packaging device according to some embodiments of the present disclosure;

Fig. 7 is an exploded view of the upper support, the driving device and the vacuum assembly in the vacuum packaging device according to some embodiments of the present disclosure;

FIG. 8 is a diagram of the connection relationship between the upper support and the filter container in the vacuum packaging device according to some embodiments of the present disclosure;

9 is a diagram of the connection relationship between the upper support and the filter in the vacuum packaging device according to some embodiments of the present disclosure;

Fig. 10 is a schematic diagram of vacuuming a vacuum tank using a vacuum pipe joint in a refrigerator according to some embodiments of the present disclosure;

Figure 11A is a perspective view of an evacuated pipe joint according to some embodiments of the present disclosure;

Figure 11B is a cross-sectional view of an evacuated pipe joint according to some embodiments of the present disclosure;

Figure 12 is an exploded view of a mounting seat and a pipeline connector in a vacuum packaging device according to some embodiments of the present disclosure;

Figure 13 is an exploded view of an upper support, a heating device and a sealing ring according to some embodiments of the present disclosure;

Figure 14 is a partial cross-sectional view of the connection between the upper support and the heating device according to some embodiments of the present disclosure;

15 is a schematic diagram of the connection relationship between the upper support and the driving device in the initial position according to some embodiments of the present disclosure;

16 is a schematic diagram of the connection relationship between the upper support and the driving device when the upper support is in the lowered position according to some embodiments of the present disclosure;

Figure 17A is a schematic structural view of the support, the small insulated door and the door body in a locked state according to some embodiments of the present disclosure;

Figure 17B is a structural schematic diagram of the lower support, the small insulated door and the door body in an unlocked state according to some embodiments of the present disclosure;

Figure 17C is a schematic structural view of the lower support and the small insulated door being removed from the door body according to some embodiments of the present disclosure;

18 is a schematic diagram of the forward and reverse structures of the small insulated door and the lower support in the assembled state according to some embodiments of the present disclosure;

Figure 19 is an exploded view of a small insulated door, a lower support and a shackle assembly according to some embodiments of the present disclosure;

20 is a schematic diagram of the structure of the lock hook assembly installed on the small insulated door according to some embodiments of the present disclosure;

Figure 21 is a partial cross-sectional view of a lock hook assembly installed on the small insulated door according to some embodiments of the present disclosure;

Figure 22 is a perspective view of a lower lock hook according to some embodiments of the present disclosure;

Figure 23 is a schematic diagram of the forward and reverse structure of the lock hook according to some embodiments of the present disclosure;

Figure 24A is a schematic structural view of the lower support, the small insulated door and the door body in a locked state according to some embodiments of the present disclosure;

24B is a schematic structural view of the lower support and the small thermal insulation door being removed from the door body according to some embodiments of the present disclosure;

Figure 25 is an exploded view of a small insulated door, a lower support and a shackle assembly according to some embodiments of the present disclosure;

Figure 26A is a structural schematic diagram of the lower support and the small thermal insulation door and the door body in a locked state according to some embodiments of the present disclosure;

Figure 26B is a schematic structural diagram of the small insulated door and the door body in an unlocked state according to some embodiments of the present disclosure;

Figure 26C is a schematic structural view of the lower support and the small thermal insulation door being removed from the door body according to some embodiments of the present disclosure;

Figure 27 is a schematic structural diagram of a refrigerator according to some embodiments of the present disclosure;

Figure 28 is an exploded view of a refrigerating door according to some embodiments of the present disclosure;

Figure 29 is a schematic structural diagram of a refrigerator according to some embodiments of the present disclosure;

Figure 30 is an exploded view of a refrigerator door according to some embodiments of the present disclosure;

Figure 31 is an exploded view of the lower support according to some embodiments of the present disclosure;

Figure 32A is a schematic structural view of the support and the door in a locked state according to some embodiments of the present disclosure;

Figure 32B is a schematic structural view of a state where the support is removed from the door according to some embodiments of the present disclosure;

FIG. 33A is a schematic structural diagram of a support and a door in a locked state according to some embodiments of the present disclosure;

FIG. 33B is a schematic structural diagram of a state in which the support is removed from the door body according to some embodiments of the present disclosure.

Detailed ways

The technical solution of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the pointed device or element must have a specific orientation or a specific orientation. The structure and operation cannot therefore be construed as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance.

In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, they can be fixed or detachable. Connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above-mentioned terms in the present disclosure can be understood in specific situations.

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

FIG. 1 is a schematic structural diagram of a refrigerator provided by some embodiments of the present disclosure; referring to FIG. 1, the refrigerator 1 is approximately a rectangular parallelepiped shape, and its appearance is defined by a storage room 100 that defines a storage space and a plurality of doors 200 arranged in the storage room 100 . FIG. 2 is a schematic structural diagram of a refrigerating door used in some embodiments of the application. Referring to FIG. 2, the door 200 includes a door shell 210 located outside the storage room 100, and a door inner bladder 220 located inside the storage room 100 , The upper end cover 230, the lower end cover 240, and the heat insulation layer between the door shell 210, the door inner liner 220, the upper end cover 230, and the lower end cover 240; usually, the heat insulation layer is filled with foam.

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

Fig. 3 is an exploded view of a refrigerating door provided by some embodiments of the present disclosure; Fig. 4 is a side cross-sectional view of a vacuum packaging device provided by some embodiments of the present disclosure. As shown in Figures 3 and 4, a vacuum packaging device 300 is provided on the door 200 of the refrigerator. The vacuum packaging device 300 is used to vacuum and plasticize the storage bag; the vacuum packaging device 300 can be set in the freezer The door 200A can also be arranged on the refrigerating door 200B. Since the refrigerating door 200B is located on the upper side, in order to conform to the user's usage habits, it is usually preferably arranged on the refrigerating door 200B.

4 is a side sectional view of the vacuum packaging device according to some embodiments of the present disclosure; FIG. 5 is a schematic diagram of the forward and reverse structure of the upper support of the vacuum packaging device according to some embodiments of the present disclosure; FIG. 6 is a schematic view of the upper support of the vacuum packaging device according to some embodiments of the present disclosure; A schematic diagram of the assembly of the upper support, the driving device and the vacuum assembly in the vacuum packaging device of some embodiments is disclosed; FIG. 7 is an exploded view of the upper support, the driving device and the vacuum assembly in the vacuum packaging device according to some embodiments of the present disclosure 8 is a diagram of the connection relationship between the upper support and the filter container in the vacuum packaging device according to some embodiments of the present disclosure; Figure 9 is a diagram of the connection relationship between the upper support and the filter in the vacuum packaging device according to some embodiments of the present disclosure Fig. 10 is a schematic diagram of vacuuming a vacuum tank using an evacuating pipe joint in a refrigerator according to some embodiments of the present disclosure; Fig. 11A is a perspective view of an evacuating pipe joint according to some embodiments of the present disclosure; Fig. 11B is a view showing some embodiments of the present disclosure Figure 12 is an exploded view of the mounting seat and pipe connector in the vacuum packaging device according to some embodiments of the present disclosure; Figure 13 is the upper support and heating device and sealing according to some embodiments of the present disclosure Figure 14 is a partial cross-sectional view of the connection between the upper support and the heating device according to some embodiments of the present disclosure; Figure 15 is a schematic diagram of the connection relationship between the upper support and the driving device when the upper support is in the initial position according to some embodiments of the present disclosure 16 is a schematic diagram of the connection relationship between the upper support and the driving device when the upper support is in the lowered position according to some embodiments of the present disclosure; FIG. 17A is a schematic structural view of the support and the thermal insulation door and the door body in a locked state according to some embodiments of the present disclosure Fig. 17B is a schematic structural view of the support and the small insulated door and the door body in an unlocked state according to some embodiments of the present disclosure; Figure 17C is a schematic structural view of the support and the small insulated door being removed from the door body according to some embodiments of the present disclosure

Figures 4 to 17 are an embodiment of the vacuum packaging device 300 provided by some embodiments of the present disclosure. As shown in FIG. 4, the vacuum packaging device 300 includes: a lower support 310, the lower support 310 is provided with a first opening cavity 311; an upper support 320, the upper support 320 is provided with a second opening cavity 321, and an upper support 320 Driven by the driving device 340, it can move in the direction approaching or away from the lower support 310. After the upper support 320 moves in the direction approaching the lower support 310, the first opening cavity 311 and the second opening cavity 321 are butted and sealed to form Seal the chamber 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 driving device 340, realizes automatic vacuum packaging, and improves the intelligence of the refrigerator.

In some embodiments, in order to improve the sealing performance of the sealed chamber 301, as shown in FIG. 4, a sealing portion for sealing the sealed chamber 301 is provided on the opposite 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 circumference of the first opening cavity 311, the upper support 320 is provided with a second sealing groove 323 on the outer circumference of the second opening cavity 321, and the first sealing groove 313 It is opposite to the position of the second sealing groove 323 and is provided with a sealing ring 350 inside. The two sealing rings 350 arranged in the first sealing groove 313 and the second sealing groove 323 seal the sealing chamber 301 on the inside, thereby realizing the reliable sealing of the sealing chamber 301.

In some embodiments, as shown in FIG. 5, the first open cavity 311 or the second open cavity 321 is provided with a limiting portion for limiting the insertion position of the storage bag inserted in the sealed cavity 301 and avoiding storage The opening position of the bag extends out of the sealed cavity 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 that of the first open cavity 311 or the depth of the second opening cavity 321; the length of the limiting rib 322 is slightly lower than the length of the first opening cavity 311 or the second opening cavity 321. When the user inserts the storage bag into the sealed chamber 301, the limiting rib 322 can block the storage bag from continuing to be inserted inward; in some embodiments, the sealed chamber 301 may also be provided with an in-position detection device, specifically, a microwave may be used The sensor or infrared sensor is used to detect the presence or absence of a storage bag inserted into the sealed chamber 301, and then send a signal to the controller whether the storage bag is in place, and the controller can control the vacuum pump to turn on according to the in-position signal. By setting the in-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.

In some embodiments, the vacuum packaging device 300 further includes a vacuum assembly 330, as shown in FIGS. 6 and 7, the vacuum assembly 330 includes a vacuum pump 331 communicating with the sealed chamber 301 through a pipeline 335; the pipeline 335 is also provided There are a pressure detecting device 332 and a gas balancing device 333. The pressure detecting device 332 is specifically a pressure sensor for detecting the pressure of the sealed chamber 301; the gas balancing device 333 is specifically an electric balancing valve, which makes The sealed chamber 301 communicates with the outside. When the user performs vacuum packaging, the vacuum pump 331 is turned on to perform vacuum processing on the sealed chamber 301. When the pressure detection device 332 detects that the pressure of the sealed chamber 301 reaches the set negative pressure value, the controller controls the vacuum pump 331 to stop. The vacuum degree of the sealed chamber 301 can be controlled by setting the pressure sensor, and the vacuum pump 331 can be switched on and off according to the detection value of the pressure sensor, ensuring the vacuuming effect. After the vacuuming and packaging operations are completed, the air pressure of the sealed chamber 301 can be increased to standard atmospheric pressure by opening the above-mentioned electric balance valve, which is convenient for the user to take out the storage bag.

In order to prevent foreign matter in the sealed chamber 301 from entering the vacuum pump 331 through the pipeline 335, the pipeline 335 also includes a filter protection device. In some embodiments, as shown in FIG. 8, the filter protection device is specifically connected in series with the tube. The filter container 334 on the path 335 is provided with an inlet and an outlet at the upper end of the filter container 334. The inlet communicates with the sealed chamber 301 through a pipeline, and the outlet communicates with the vacuum pump 331 through a pipeline; foreign matter in the sealed chamber 301 enters and filters through the pipeline 335 The container 334 is kept at the bottom of the filter container 334 to prevent foreign matter from entering the vacuum pump 331. In order to facilitate cleaning of the filter container 334, more specifically, the filter container 334 includes a tank body with an opening and an upper cover detachably connected to the tank body. The upper cover is provided with an inlet and an outlet, and the tank body is removed for cleaning during cleaning. That is, the problem of frequent disassembly and assembly of the pipeline 335 causing poor sealing of the pipeline 335 can be avoided.

In other embodiments, as shown in FIG. 9, the filter protection device is provided with a filter screen 336 on the pipeline 335. Specifically, in order to facilitate disassembly and assembly, the filter screen 336 is arranged at the connection position of the upper support 320 and the pipeline 335. After the user moves the upper support 320 to the highest position at the position of the vent 324, the filter 336 can be disassembled or cleaned from the lower side. There can be one connection hole between the sealing chamber 301 and the pipeline 335. Of course, in order to avoid the vacuum failure caused by the foreign matter in the sealing chamber 301 blocking the connection hole when a single connection hole is used, two or more connection holes can also be provided. They are connected to the pipelines 335 respectively. The pipelines 335 are arranged in parallel and connected to the main pipe through a three-way or multi-way connector; wherein the pressure sensor and the electronic balance valve are arranged on the main pipe.

As the vacuum pump exhausts a lot of noise, which affects the user experience, in order to further reduce the noise when the vacuum pump exhausts, as shown in Figures 6 and 7, the mounting seat 305 is also provided with a silencer 339. The air inlet 3393 of the 339 communicates with the air outlet of the vacuum pump 331.

Specifically, as shown in FIGS. 6 and 7, the driving device 340 and the vacuum assembly 330 are both mounted on the mounting seat 305 located on the upper side of the upper support 320. The upper support 320 is provided with a vent hole 324 for communicating with the vacuum assembly 330. Wherein, as shown in Figure 12, the mounting base 305 includes a base body and a cover body 306. The base body of the mounting base 305 is provided with a vacuum pump mounting cavity 3051 located in the middle position, and a driving device mounting cavity located on the left and right sides of the vacuum pump mounting cavity 3051. 3052, the filter container installation cavity 3053 on the lower side of the vacuum pump installation cavity 3051; the silencer installation cavity 3054 on the upper side of the vacuum pump installation cavity 3051, the other component installation cavity 3055 on the upper side of one of the drive device installation cavities 3052, the other The component mounting cavity 3055 is used to install electric balance valves, pressure sensors, etc. The cover body 306 is connected with the seat body 305 for sealing the vacuum pump installation cavity 3051.

Since the various components in the vacuum assembly: the vacuum pump 331, the pressure sensor 332, the gas balance device 333, and the filter protection device 334 all need to be connected through the pipeline 305; and in order to achieve modular assembly, these components need to be integrated in the installation. Therefore, in order to make the pipeline connection between the various vacuum components installed in the installation seat 305 more reasonable, it is easier to assemble the pipeline on the installation seat with a relatively compact structure, and the pipeline is installed There is a pipeline connector. Specifically, the pipeline connector is a four-way connector 308A. One of the four-way connectors 308A is connected to the suction port of the vacuum pump 331, one is connected to the pressure sensor 332, and the other is connected to the electric balance valve 333. , One way 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 on the mounting base 305.

Specifically, as shown in FIG. 12, the mounting seat 305 is formed with a plurality of partition ribs 3056. The partition ribs 3056 are used to divide the mounting seat 305 into different installation chambers; one of the partition ribs 3056 has an opening, and the partition rib 3056 is at the opening. A sliding protrusion is provided along the thickness direction of the mounting seat 305; the four-way connector 308A includes a board 3381 and plug interfaces 3382 respectively provided on both sides of the board; the board 3381 is provided with correspondingly along the thickness square of the mounting seat 305 In the sliding groove, the plate 3381 is slidably inserted into the two sides of the opening of the partition rib 3056.

When installing the pipeline 305 of the vacuum assembly 330, first install the vacuum pump 331, pressure sensor 332, gas balance device 333, and filter protection device 334 on the corresponding installation positions of the mounting seat 305; then plug the four pipelines into the four Connect the four sockets 3382 of the four-way connector 338A, and then insert the plate 3381 of the four-way connector 338A into the opening of the partition rib 3056. The free ends of each pipeline 305 are connected to the suction port of the vacuum pump 331 and the pressure sensor. 332. The outlets of the electric balance valve 333 and the filter container 334 are connected to realize the installation of the entire vacuum assembly, the structure is compact and the assembly is convenient. In addition, this structure allows the pipeline to be embedded inside the seat body of the mounting seat 305, avoiding the problem of disordered wiring of multiple pipelines.

In order to realize the vacuum processing of the sealed tank with the plug-in interface, as shown in FIG. 7, the mounting seat 305 is also provided with a vacuum pipe joint 337 communicating with the vacuum assembly through a pipeline. When the user vacuums the sealed tank with the plug-in interface, plug one end of the connecting pipe into the plug-in interface of the sealed tank B, and plug the other end into the vacuum pipe joint 337, and turn on the vacuum pump 331 to perform vacuum processing. When the detecting device 332 detects that the pressure of the pipeline reaches the set negative pressure value, it controls the vacuum pump 331 to stop.

Specifically, the vacuum pipe joint 337 is plugged into the cavity wall of the other component installation cavity 3055; the vacuum pipe joint 337 is provided with an on-off valve inside, which is used to close the vacuum pipeline in the initial state, and after the vacuum pipe is inserted into the vacuum pipe joint Open the vacuum line.

As shown in Figures 11A and 11B, the vacuum pipe joint is formed by connecting a first interface portion 3371 and a second interface portion 3372. The first interface portion 3371 is provided with an interface for communicating with the vacuum assembly, and the second interface portion 3372 is provided with At the interface that communicates with the sealed tank, a cavity is formed between the first interface portion 3371 and the second interface portion 3372. The on-off valve is a plug 3373 and a return spring 3374 arranged in the cavity. The plug 3373 is used to block the second interface. In the interface part of the second interface part 3372, the return spring 3374 is used to apply a force to the plug 3373 to block the interface of the second interface part 3372.

Since the vacuum port 337 and the filter container 334 are directly connected through the pipeline 305, but because the two are in two different chambers, the mounting seat 305 also includes a pipeline for connecting the vacuum port 337 and the filter container 334 Specifically, the pipeline connector is a two-way connector 338B. The two-way connector 338B includes a board 3381 and a plug port 3382 located on both sides of the board 3381. One end of the plug port 3382 and a vacuum port 337 is connected through a pipeline; the other end is connected with the filter container 334 through a pipeline.

Due to the large number of pipeline parts in the mounting seat, in order to make the pipeline connection between the various vacuum components more reasonable and orderly, avoid the pipelines from being disorderly and disorderly; insert two from the inside to the outside at the opening of the partition rib 3056 The pipeline connector, wherein the opening width on the inner side is smaller than the opening width on the outer side. During installation, first insert the two-way connector 338B into the opening with a smaller width; connect the pipeline of the two-way connector 338B, then connect the four-way connector 338A to the outer opening, and then carry out the pipeline connection. The internal opening is narrow and the external opening is wide, forming a limit structure of the pipeline connector, which can make the two pipeline connectors have better positioning. At the same time, the entire device has a simple structure and is easy to install.

In order to maintain the overall aesthetics of the outer surface of the refrigerator door 200 and the convenience of applying the vacuum packaging device 300, as shown in FIG. 3, the door housing 210 is provided with an inwardly recessed mounting cavity 211, a driving device 340 and an upper support 320 After connection, it is connected to the mounting seat 305 by screws. The vacuum assembly 330 is connected to the vent hole 324 on the upper support 320 and then installed on the mounting seat 305. The cover 306 is connected to the vacuum pump mounting cavity 3051 to form a component. The side of the mounting seat 305 with a cavity faces the door housing 210, and the whole is installed in the mounting cavity 211 by screws that pass through the lugs on both sides of the mounting seat 305. Each component is modularized and assembled. Exposed on the outer surface, the integrity of the device is better.

As shown in FIG. 4, the vacuum packaging device 300 also includes a packaging area 302 located outside the sealed chamber 301. The packaging area 302 is used to plasticize the storage bag after the vacuum is completed. The heat insulation pad 360 and the heating device 370; specifically, the heating device 370 is installed in the groove on the lower surface of the upper support 320; the heat insulation pad 360 is installed in the groove on the upper surface of the upper support 320 and the lower support 310 When the upper support 320 moves to the sealed chamber 301 that forms a seal with the lower support 310, the heat insulation pad 360 in the packaging area 302 abuts against the heating device 370. After the vacuuming is completed, the storage bag can be quickly plastic-sealed by the heating device 370 in the packaging area 302. After the working time of the heating device 370 is set, the driving device 340 is controlled to drive the upper support 320 to move up, and the user can pull out the storage bag to complete Plastic packaging of storage bags.

More specifically, as shown in Figure 13 and Figure 14, the heating device 370 includes a heating wire 371. A heat conducting plate 373 is provided on the lower side of the heating wire 371 to diffuse the heating area of the heating wire 371 to increase the plastic sealing area of the storage bag. The plastic package is firm. The heating wire 371 extends along the length of the upper support 320 and is bent upward on both sides of the upper support 320. The free end of the heating wire 371 extending to the upper side of the upper support 320 is fixed to the upper support 320 by an insulating plate 372. Specifically, the insulating plate 372 is made of an insulating material, and is shaped into a bent plate, covering the outside of the heating wire 371 to prevent the heating wire 371 from being exposed to the outside. Furthermore, the two free ends of the heating wire 371 are respectively connected to the two wires led out through the connection terminal 374 through a spring 375; the heating wire 371 can always be in a tensioned state by setting the spring 375, so that the heating wire 371 is flat. High, the heat conducting plate 373 located on the lower side of the heating wire 371 is in close contact with the storage bag; it avoids the problem that the heating wire 371 is not flat and the contact is not solid and the plastic cannot be sealed.

In the above-mentioned vacuum packaging device, the driving device 340 may be an electric driving device or a pneumatic driving device; the pneumatic driving device occupies a large space, so in this embodiment, the driving device 340 adopts an electric driving device. Specifically, as shown in FIGS. 7, 15 and 16, the driving device 340 includes a motor 341 and a transmission mechanism. The transmission mechanism is used to convert the rotary motion of the motor into 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 meshed with the first gear 342; a third gear 344 fixedly connected with the second gear 343, and an output gear meshed with the third gear 344 The rack 345, wherein a pin hole is provided on the lower side of the output rack 345, and the upper support 320 and the output rack 345 are connected by a pin shaft 346 inserted into the pin hole. Through the above-mentioned transmission mechanism, the rotation of the motor 341 is converted into the up and down movement of the upper support 320.

Specifically, as shown in FIG. 7, a connecting plate 347 is provided between the upper support 320 and the driving device 340, and the connecting plate 347 is threadedly connected to the upper support 320, and a guide groove 3471 is formed on the connecting plate 347 to output the rack The lower end of the 345 is inserted into the guide groove 3471, the guide groove 3471 and the lower end of the output rack 345 are respectively provided with elongated pin holes, and the pin shaft 346 penetrates through the guide groove 3471 and the pin holes of the output rack 345. There is a gap between the lower end surface of the output rack 345 and the bottom of the guide groove 3471, and an elastic body 348 is provided in the gap.

As shown in FIG. 15, in the initial position, the upper support 320 is at the highest position; in the pressing stage, as shown in FIG. 16, the driving device 340 drives the upper support 320 to move downward, in order to ensure that the lower support 310 and the upper support The seat 320 is closely matched, and the set rotation stroke of the motor 341 is usually used as an in-position judgment signal. Therefore, an elastic body 348 is arranged between the output rack 345 and the guide groove 3471 to move the upper support 320 down to the lower support 310 After contact, the output rack 345 can continue to move downward for a certain distance, so that the elastic body 348 is compressed, preventing the motor 341 from being blocked, protecting the motor 341, and keeping the pressing force stable.

In the vacuuming stage, the airtight sealed chamber 301 formed between the lower support 310 and the upper support 320, as the air pressure becomes lower, the upper support 320 moves downward under the action of the atmospheric pressure. At this time, due to the long strip The existence of the shaped pin hole can make the output rack 345 remain in place when the upper support 320 moves down, which protects the entire driving device 340.

In order to accurately control the movement of the upper support 320 and determine whether the upper support 320 is moved in place so that the sealed chamber 301 forms a sealed space; in the embodiment, the motor 341 is a stepping motor 341, and the rotation stroke of the stepping motor 341 is detected It is judged whether the upper support 320 is moved in place. In another embodiment, a micro switch is provided on the lower support 310 or the upper support 320; after the upper support 320 is moved into position, the micro switch is triggered, and the controller controls the driving device 340 to stop according to the feedback signal of the micro switch. And lock in the current position.

The driving device 340 can be provided as one, and the output gear is located in the middle area of the upper support 320. This situation is likely to cause the edge area of the upper support 320 and the lower support 310 not to fit closely enough to cause the sealed chamber 301 to leak; therefore, To provide the sealing of the sealed chamber 301, the driving device 340 is respectively arranged on both sides of the upper support 320. Correspondingly, one connecting plate 347 is provided, and the connecting plate 347 is provided with two guide grooves 3471; two output racks 345 respectively extend into the guide grooves 3471.

When the user uses the vacuum packaging device 300 to plastic-seal food bags, especially when plastic-seals powdered food such as flour or liquids, the powder or liquid may enter the sealed cavity 301 during the vacuuming process, and finally It is stored in the first opening 311 of the lower support 310; therefore, in order to facilitate the user to clean the food residue in the lower support 310, the lower support 310 can be detachably installed with respect to the door 200.

The way in which the lower support 310 is installed on the door 200 is not unique. In some embodiments, as shown in FIGS. 17A-17C, the lower support 310 can be installed from the inner side of the door 200 (that is, the side with the inner liner). ) It is detachably installed on the door body 200. Since the door body 200 of the refrigerator must ensure heat insulation, the lower support 310 is provided with a small heat-preserving door 250 toward the inner part of the storage compartment 100. Wherein, as shown in FIG. 17C, the door body 200 is provided with a mounting hole 201 connecting the inside and the outside, and the lower support 310 and the small thermal insulation door 250 are inserted into the mounting hole 201 from the inner side of the door body 200, and the lower support 310 is realized at the same time. The disassembly and cleaning and the insulation performance of the door 200.

In some embodiments, as shown in FIG. 18, the lower support 310 and the small thermal insulation door 250 are integrally formed; as shown in Figures 19 and 20, the lower support 310 and the thermal insulation small door 250 are formed by a first structure with an open cavity. The housing 251 and the second housing 252 and a heat insulating member disposed between the first housing 251 and the second housing 252 are formed. 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 opening 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.

In order to further ensure the thermal insulation of the door body 200, to avoid cooling leakage through the gap between the mounting hole 201 and the small thermal insulation door 250, as shown in Figures 18 and 19, the thermal insulation small door 250 and the door inner bladder 220 There is a small door seal 253 between. Specifically, the first housing 251 is provided with a support arm 2512 at a position where it fits with the door inner bladder 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 an installation groove surrounding the installation hole 201, and the small door door seal 253 is installed in the installation groove.

Specifically, in order to ensure that the small thermal insulation door 250 is reliably fixed to the door body 200, a locking device 400 is provided between the small thermal insulation door 250 and the inner bladder 220 of the door, and the locking device 400 is used to lock or lock the small thermal insulation door 250. Unlock on the door 200.

As shown in Figures 17A-17C, Figure 18, and Figure 19, the locking device 400 includes: a lock hook assembly provided on the small thermal insulation door 250, and a locking groove 221 provided on the door body 220, the lock hook assembly includes Pass through the lock hook on the small thermal insulation door 250. The lock hook can be switched between the first position and the second position. When the lock hook is in the first position, it can cooperate with the locking groove 221 to lock the small thermal insulation door 250. The lock hook is in the second position. In the second position, it is disengaged from the locking groove 221 to realize the unlocking of the small heat preservation door 250.

Specifically, in order to improve the reliability of the locking device 400, two locking grooves 221 and locking hooks are respectively provided, wherein the locking grooves 221 are located on the upper and lower sides of the mounting hole 201.

Figure 18 is a schematic diagram of the front and reverse structure of the small thermal insulation door and the lower support in an assembled state according to some embodiments of the present disclosure; Figure 19 is a schematic diagram of the small thermal insulation door, the lower support and the lock hook assembly according to some embodiments of the present disclosure Exploded view; Figure 20 is a structural schematic diagram of the shackle assembly installed on the small insulated door according to some embodiments of the present disclosure; Figure 21 is a partial cross-sectional view of the shackle assembly installed on the small insulated door according to some embodiments of the present disclosure; 22 is a three-dimensional view of the lower lock hook according to some embodiments of the present disclosure; FIG. 23 is a schematic diagram of the forward and reverse structure of the upper lock hook according to some embodiments of the present disclosure. As shown in FIGS. 18-23, the lock hook assembly includes an upper lock hook 420 and a lower lock hook 410, and a return spring 430. As shown in FIG. 22, the lower lock hook 410 includes a hook portion 414 that cooperates with the lock groove 221 on the lower side, and is rotatably connected to the hinge portion 412 on the small thermal insulation door 250, and the handle portion 411 on the lower side of the small thermal insulation door 250 , Wherein the handle 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, wherein the lower connecting portion 413 extends along the upper side of the handle portion 411. Specifically, the end of the lower connecting portion 413 is formed as a T-shaped protrusion 4131. As shown in FIG. 20, the upper locking hook 420 includes a hooking portion 421 that cooperates with the locking groove 221 on the upper side, and an upper connecting portion 423 connected to the lower locking hook 410. Specifically, the lower end 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 arranged between the upper locking hook 420 and the upper end surface of the small heat preservation 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.

As shown in FIG. 20, a guiding and positioning portion is formed on the inner surface of the second housing 252, 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. The hooks 2521 are located on the left and right sides of the upper connecting portion 423 and extend a certain distance in the vertical direction. The upper connecting portion 423 is clamped between the two hooks 2521.

In the initial state, under the action of the elastic force of the return spring 430, the upper lock hook 420 and the lower lock hook 410 are located in the first position to realize the locking of the small insulation door 250 and the door inner bladder 220; when the user pulls the lower lock hook 410 by hand , The lower locking hook 410 rotates around the hinge portion 412, the hooking portion 414 moves downward to disengage from the lower locking groove 221, while the connecting part pushes the upper locking hook 420 upward to move 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 in the second position to realize the unlocking of the small insulated door 250 and the inner bladder 220 of the door.

In order to ensure the aesthetic appearance of the refrigerator door 200, as shown in FIGS. 1 and 2, the refrigerator door 200 is provided with a bar door 260 at the area where the vacuum packaging device 300 is located, and the lower end of the bar door 260 is hinged with the door 200, and It can be flipped to a position perpendicular to the surface of the door housing 210; the upper end of the bar door 260 is connected to the door housing 210 through the first push switch 212. By adopting the structure of the bar door 260, the storage bag containing food can be placed on the bar door 260 and then vacuum-sealed when the bar door 260 is opened, which is convenient for the user to operate. When the bar door 260 is closed, the aesthetic appearance of the door body 200 is ensured.

The inside of the bar door 260 also includes an operation panel 270 covering the outside of the installation cavity. The operation panel 270 is formed with an insertion interface 271 for receiving the packaged storage bag and an insertion hole 273 for inserting the vacuum pipe joint 337. Wherein, the lower surface of the insertion port 271 is flush with the upper surface of the first opening cavity 311. In this way, the vacuum packaging device 300 can be entirely hidden behind the operation panel 270. When the user is performing vacuum molding, the storage bag can be directly inserted into the opening of the insertion port 271 of the operation panel 270 and directly extend to the upper surface of the first opening cavity 311. When the upper support 320 is moved down, The opening of the storage bag is placed in the sealed chamber 301. Specifically, the operation panel 270 is detachably connected to the door housing 210. The operation panel 270 is also provided with a display and control device 272, which includes an indicator device for displaying the working status 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 withdrawn according to the working status of the vacuum packaging device 300 displayed by the display and control device 272.

When the user vacuum-plasticizes the storage bag, insert the storage bag to be sealed through the insertion interface 271 provided on the operation panel 270, and after it is inserted in place (the storage bag is in contact with the limiting rib 322), the user triggers the operation panel 270 The motor 341 is activated, and the upper support 320 is controlled to descend until the upper support 320 is moved to the position (the sealed chamber 301 is sealed) and then the vacuum pump 331 is controlled to start to vacuum the sealed chamber 301. The storage bag passes through the The opening of the storage bag in the sealed chamber 301 is evacuated; 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, Control the electric balance valve to start; then control the linear motor 341 to start and control the upper support 320 to rise until the first open cavity 311 and the second open cavity 321 are separated; the display control device 272 on the operation panel 270 instructs the user to withdraw the storage bag, The vacuum packaging of the storage bag is completed.

When the user evacuates the sealed tank B with the plug-in interface, as shown in Figure 10, the sealed tank B with the plug-in interface is inserted into the vacuum pipe joint located inside the insertion hole 273 of the operation panel 270 through a connecting tube. 337, after plugging in place, the user triggers the start button on the operation panel 270 to start the motor 341, and control the upper support 320 to descend until the upper support 320 moves into place until the sealed chamber 301 is sealed; at this time, the vacuum pump 331 is controlled Start, and vacuumize the sealed tank B with the plug-in interface. After the vacuuming process is completed, the gas balance device is controlled to work for a set time, and after the air pressure in the sealed chamber 301 reaches the standard atmospheric pressure, the driving device is controlled to drive the upper support to move up to the initial position. Since the pipeline of the sealed tank B and the pipeline of the storage bag are connected to each other, in order to avoid that when the tank B is sealed, the pipeline communicates with the outside through the cavity between the upper support 320 and the lower support 310 Therefore, by controlling the driving device to seal the sealed chamber and then evacuating the vacuum tank B, the vacuuming pipeline can be sealed without passing the pipeline of the sealed tank and the pipeline of the storage bag Isolation of on-off valves and other components can achieve normal operation, simplify parts and reduce costs.

In some embodiments of the present disclosure, FIG. 24A is a structural schematic diagram of the support and the thermal insulation door and the door in the locked state according to some embodiments of the present disclosure; Figure 24B is the support and thermal insulation according to some embodiments of the present disclosure The structure diagram of the small door removed from the door body; FIG. 25 is an exploded view of the small insulated door, the lower support and the lock hook assembly according to some embodiments of the present disclosure. Referring to FIG. 24A and FIG. 24B, the lower support 310 is detachably connected to the small thermal insulation door 250. As shown in FIG. 25, the small thermal insulation door 250 is formed by a first shell 251 and a second shell 252 having an open cavity structure, and a heat insulating member arranged between the first shell 251 and the second shell 252. 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, and the lower support 310 is detachably connected to the extension arm 2511.

Specifically, a first limiting portion extending upward is formed on the end of the extension arm 2511, and a second limiting portion that matches the first limiting portion is formed on the underside of the lower support 310. The first limiting portion and the The second limiting part cooperates 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 on the bottom of the lower support 310 and extending downward. The baffle is inserted into the inner side of the limiting plate to realize the installation of the lower support 310 on the extension. The upper arm 2511 avoids the problem that the lower support 310 moves in the horizontal direction and the sealing chamber is not tightly sealed.

In order to further ensure the thermal insulation of the door body 200 and avoid cooling leakage through the gap between the mounting hole 201 and the small insulation door 250, a small door seal 253 is provided between the small insulation door 250 and the inner bladder 220 of the door. . Specifically, the first housing 251 is provided with a support arm 2512 at a position where it fits with the door inner bladder 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 an installation groove surrounding the installation hole 201, and the small door door seal 253 is installed in the installation groove.

Specifically, in order to ensure that the small thermal insulation door 250 is reliably fixed to the door body 200, a locking device 400 is provided between the small thermal insulation door 250 and the inner bladder 220 of the door.

As shown in FIG. 25, the locking device 400 includes: a lock hook 440 hinged to the bottom of the small thermal insulation door 250, the middle of the lock hook 440 is provided with a hinge shaft for connecting with the small thermal insulation door 250, and is connected to the small thermal insulation door 250; A locking groove formed on the inner bladder 220 of the door to cooperate with the lock hook; and a reset torsion spring 450 sleeved on the hinge shaft; one leg of the reset torsion spring abuts against the small thermal insulation door 250, and the other abuts against On the lock hook 440; in the initial state, the torsion force of the reset torsion spring 450 is suitable for the lock hook 440 to be in the first position, so that the small insulation door 250 can be installed on the door body.

Specifically, in order to improve the aesthetics of the small door, an installation groove is formed at the bottom of the small door, and the lock hook is installed inside the installation groove. 24A and 24B show the process of disassembling the small heat preservation door 250 and the lower support 310. Among them, when the small thermal insulation door 250 and the lower support 310 are installed on the door body 200, the lock hook cooperates with the locking groove to realize the locked state of the small thermal insulation door 250; when the small thermal insulation door 250 and the lower support 310 need to be disassembled, Pull the lock hook away from the locking groove, the locking device 400 is in the unlocked state, and the small heat preservation door 250 and the lower support 310 are pulled out, and the lower support 310 can be removed from the heat preservation door 250 to perform the operation on the lower support 310. Clean. In this embodiment, the lower support 310 is detachably connected to the small heat preservation door 250, which can make the cleaning of the lower support 310 easier and more convenient.

In some embodiments of the present disclosure, FIG. 26A is a structural schematic diagram of the support, the small insulation door and the door body in a locked state according to some embodiments of the present disclosure; FIG. 26B is the insulation small door and the door body according to some embodiments of the present disclosure The schematic structural diagram in the unlocked state; FIG. 26C is a schematic structural diagram of the support and the small thermal insulation door removed from the door body according to some embodiments of the present disclosure. As shown in Figures 26A-26C, the lower support 310 and the small thermal insulation door 250 are arranged independently of each other, and the lower side of the mounting hole 201 is provided with a limit part that restricts the position of the lower support 310, and one end of the lower support 310 abuts On the limiting part, the other end abuts against the small thermal insulation door 250. The small insulated door 250 can be installed on the door body 200 by using the locking device 400 in the first or second embodiment.

Obviously, the foregoing embodiments are merely examples for clear description, and are not intended to limit the implementation manner. For those of ordinary skill in the art, other changes or modifications in different forms can be made on the basis of the above description. It is unnecessary and impossible to list all the implementation methods here. And the obvious changes or alterations derived from this are still within the scope of protection created by this disclosure.

Claims

A refrigerator including:

Storeroom

The door is used to open or close the storage room;

Vacuum components, including

Vacuum pump

The vacuum pipe joint is arranged on the door body and communicates with the vacuum pump, and is used to extract gas from the sealed tank inserted into it through the pipeline;

The vacuum packaging device is arranged on the door body, and the vacuum packaging device includes:

An upper support and a lower support, where the upper support and the lower support are positioned relative to each other;

A driving device for driving the upper support and/or the lower support to move the upper support and the lower support closer to or away from each other, the opposite surfaces of the upper support and the lower support After docking, it is sealed to form a sealed cavity; the sealed cavity communicates with the vacuum pump and is used to extract gas from a storage bag whose opening is placed in the sealed cavity.
The refrigerator according to claim 1, wherein the vacuum assembly further comprises: a pressure detection device and a gas balance device, the pressure detection device is used to detect the pressure in the pipeline, and the gas balance The device is used to make the gas in the pipeline communicate with the outside gas.
The refrigerator according to claim 1 or 2, wherein the vacuum assembly further comprises a filter protection device for filtering foreign objects sucked into the pipeline.
The refrigerator according to claim 3, wherein the filter protection device comprises a filter container connected in series with the pipeline, and two inlets and outlets are provided at the upper end of the filter container, one of the inlet and the sealed cavity The chambers are communicated through a pipeline, wherein the other inlet is communicated with the vacuum pipe joint through a pipeline; the outlet is communicated with the vacuum pump through a pipeline.
The refrigerator according to claim 1, wherein an on-off valve is provided inside the vacuum pipe joint, and the on-off valve is used to close the communication between the inside and outside of the vacuum pipe joint in an initial state.
The refrigerator according to claim 5, wherein the vacuum pipe joint is formed by connecting a first interface part and a second interface part, and a cavity is formed between the first interface part and the second interface part. , The switch valve is a plug and a return spring disposed in the cavity, the plug is used to block the interface part of the second interface part, and the return spring is used to apply The force of blocking the interface of the second interface part.
The refrigerator according to claim 2, characterized in that it further comprises a control system, the control system controls the driving device to drive the upper support and the lower after receiving the sealed tank instruction issued by the user. The support is relatively close until the sealed chamber is sealed, and then control the vacuum assembly to vacuumize the sealed tank, and when it is determined that the pressure detected by the pressure detection device meets the preset conditions, control The vacuum pump stops.
The refrigerator according to claim 7, wherein the control system is configured to control the working set time of the gas balance device after controlling the vacuum pump to stop, and control the driving device to drive the upper support and The lower support is relatively far away until it returns to the initial position.
The refrigerator according to claim 1, wherein the driving device, the vacuum assembly and the vacuum pipe joint are mounted on a mounting seat, and an inwardly recessed mounting cavity is provided on the outer side of the door body , The mounting seat and the upper support are installed in the mounting cavity.
The refrigerator according to claim 1, further comprising an operation panel covering the outside of the installation cavity, and an insertion port suitable for receiving the packaging bag is formed on the operation panel, and an insertion port suitable for inserting the packaging bag is formed on the operation panel. The socket of the vacuum pipe joint.