JP7191285B2 - refrigerator - Google Patents

Description

This disclosure is based on application number 201910756 filed with the Chinese Patent Office on Aug. 16, 2019.
799. X, Chinese Patent Application entitled “Refrigerator” and claiming priority based on Chinese Patent Application entitled “Refrigerator”, Application No. 201910756811.7, filed with the Chinese Patent Office on Aug. 16, 2019 and the entire contents of which are incorporated herein by reference.

FIELD OF THE DISCLOSURE The present disclosure relates to the field of consumer electronics, and more particularly to refrigerators.

In recent years, with the gradual increase in people's awareness of health, the need for foodstuff storage is increasing more and more. Refrigerators are the most commonly used household appliance for storing food.
Food preservation and storage has become an urgent technical problem to be solved in the field of refrigerators.

Currently, different preservation techniques have been proposed by each manufacturer for the preservation problem of foodstuffs. For example, in the vacuum preservation technique, the denaturation conditions of the food were changed in the vacuum state. First, it takes a long time to meet the breeding requirements of microorganisms because microorganisms and various promoting enzymes are difficult to survive in a vacuum environment. Secondly, in the vacuum state, the oxygen gas in the container is greatly reduced, so that various chemical reactions cannot be completed and the food is preserved for a long time without being oxidized.

In a first aspect, the present disclosure is a refrigerator including a vacuum packaging device mounted outside a door, the vacuum packaging device including a lower support seat, an upper support seat, and a gas extraction component. the lower support seat is provided on its upper side with a first open chamber and a sealing ring surrounding said first open chamber, and the upper support seat is provided on its lower side with a correspondingly second open chamber and said second A sealing ring is provided surrounding the open chamber, the upper support seat being movable toward or away from the lower support seat under the drive of a drive which linearly aligns the rotary motion of the motor with the motor. including a transmission mechanism for converting to motion, the output end of the transmission mechanism being connected to an upper support seat, said upper support seat moving until the sealing ring on said upper support seat contacts the sealing ring on said lower support seat; After moving at a first speed, moving to the lower support seat at a second speed and then stopping until the sealing ring has a predetermined deformation amount, and the first opening chamber and the second opening chamber are butted against each other. forming a gas extraction area in a hermetically sealed fashion, wherein the first velocity is greater than the second velocity, and the gas extraction component is in communication with the gas extraction area by a conduit to the gas extraction area. To provide a refrigerator used to perform gas extraction or relief in a home.

As a second aspect, the present disclosure is a refrigerator comprising a storage compartment and a door for opening and closing the storage compartment, wherein the door is provided with a vacuum packaging device, comprising an upper support seat, a lower support seat, and gas extraction. wherein said upper support seat and/or said lower support seat are defined with an open chamber on opposing surfaces thereof, said upper support seat and/or said lower support seat surrounding said open chamber. is provided with a sealing ring, the upper support seat can be moved toward or away from the lower support seat under the driving of a driving device, and the upper support seat can move toward or away from the lower support seat until it abuts against the lower support seat. The open chamber is sealed by a sealing ring to form a gas extraction area when moved toward the lower support seat, and the gas extraction component includes a vacuum pump in communication with the gas extraction area by a conduit. comprising, in said conduit,
A pressure sensing device and a relief device are further provided, wherein the pressure sensing device, the relief device and the vacuum pump are each electrically connected to a controller, and after the vacuum pump is activated, the pressure sensing device detects the gas extraction. The pressure in the area is detected, and when the controller determines that an abnormality has occurred in gas extraction in the gas extraction area based on the detection signal from the pressure detection device, the relief device is activated while stopping the vacuum pump. a refrigerator controlled to allow the gas extraction area to provide relief.

In order to describe the technical solution of the present disclosure more clearly, the following briefly describes the drawings required for the embodiments. Obviously, those skilled in the art can derive other drawings based on these drawings without creative effort. Also, the drawings described below are to be considered schematic only and are not intended to limit the actual size of the embodiments of the present disclosure.

1 is a structural schematic diagram of a refrigerator according to some embodiments of the present disclosure; FIG. 1 is a structural schematic diagram of a refrigeration door according to some embodiments of the present disclosure; FIG. 1 is an exploded view of a refrigeration door according to some examples of the present disclosure; FIG. 1 is a side cross-sectional view of a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. FIG. 4 is a structural schematic diagram of forward and reverse directions of an upper support seat in a vacuum packaging device according to some embodiments of the present disclosure; FIG. 4 is a schematic diagram of mounting an upper support seat, a drive and a gas extraction component in a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. 4 is an exploded view of an upper support seat, drive and gas extraction components in a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. 4 is a connection relationship diagram between an upper support seat and a filter container in a vacuum packaging device according to some embodiments of the present disclosure; FIG. 4 is a connection relationship diagram between an upper support seat and a filtering mesh in a vacuum packaging device according to some embodiments of the present disclosure; FIG. 3 is an exploded view of an upper support seat, heating device and sealing ring according to some embodiments of the present disclosure; FIG. 10 is a local cross-sectional view of the connection between the upper support seat and the heating device according to some embodiments of the present disclosure; FIG. 5 is a schematic diagram of the connection relationship with the driving device when the upper support seat is in the initial position according to some embodiments of the present disclosure; FIG. 5 is a schematic diagram of the connection relationship between the upper support seat and the driving device when the upper support seat is in the lowered position according to some embodiments of the present disclosure; FIG. 3 is a structural schematic diagram of a lower support seat, a heat-insulating small door and a locked state of the door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a lower support seat, a small heat-insulating door and an unlocked state of the door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic view of the door without a lower support seat and a heat-insulating small door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of the forward and backward directions of the mounting state of the heat-insulating small door and the lower support seat according to some embodiments of the present disclosure; FIG. 3 is an exploded view of a small thermal door, lower support seat and latch hook components according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a latch hook component installed on the small door for heat preservation according to some embodiments of the present disclosure; FIG. 10 is a local cross-sectional view of a latch hook component attached to the small thermal door according to some embodiments of the present disclosure; FIG. 12 is a perspective view of a lower latch hook according to some embodiments of the present disclosure; FIG. 5 is a structural schematic diagram of forward and reverse directions of an upper latch hook according to some embodiments of the present disclosure; 4 is a flow chart of an upper support seat lowering procedure in a vacuum packaging apparatus according to some embodiments of the present disclosure; 4 is a flow chart of a gas extraction plastic packaging procedure of a vacuum packaging apparatus according to some embodiments of the present disclosure; 4 is a flow chart of a vacuum packaging apparatus relief procedure and an upper support seat elevation procedure according to some embodiments of the present disclosure; FIG. 3 is a structural schematic diagram of a lower support seat, a heat-insulating small door and a locked state of the door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic view of the door without a lower support seat and a heat-insulating small door according to some embodiments of the present disclosure; FIG. 3 is an exploded view of a small thermal door, lower support seat and latch hook components according to some embodiments of the present disclosure; FIG. 3 is a structural schematic diagram of a lower support seat, a heat-insulating small door and a locked state of the door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a small heat-insulating door and an unlocked state of the door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic view of the door without a lower support seat and a heat-insulating small door according to some embodiments of the present disclosure; 1 is a structural schematic diagram of a refrigerator according to some embodiments of the present disclosure; FIG. 1 is an exploded view of a refrigeration door according to some examples of the present disclosure; FIG. 1 is a structural schematic diagram of a refrigerator according to some embodiments of the present disclosure; FIG. 1 is an exploded view of a refrigeration door according to some examples of the present disclosure; FIG. FIG. 4 is an exploded view of a lower support seat according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a locking state between a lower support seat and a door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a door with a lower support seat removed according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a locking state between a lower support seat and a door according to some embodiments of the present disclosure; FIG. 4 is a structural schematic diagram of a door with a lower support seat removed according to some embodiments of the present disclosure;

The following is the technical solution in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application:
Explain clearly and completely. Apparently, the described embodiments are only a part of the embodiments of the present application and not all of the embodiments. Based on the embodiments in the present application, any other embodiments obtained without creative efforts by those skilled in the art should fall within the protection scope of the present application.

In the description of the specification, the terms "one embodiment", "some embodiments", and "exemplary embodiments"
, "examples,""particularexamples," or "some examples," etc. means that the particular feature, structure, material or property associated with that embodiment or example includes at least one embodiment or example of the disclosure. The purpose is to express that Such terms, illustratively, do not necessarily refer to the same embodiment or example. Also, the particular features, structures, materials or characteristics described above may be included in any one or more embodiments or examples in any suitable form.

In addition, in the description of the present disclosure, the terms “center”, “upper”, “lower”, “left”, “right”,
Directions or positions indicated by "vertical", "horizontal", "inside", "outside", etc. are directions or positions shown in the drawings and are for the purpose of facilitating and simplifying the description of the present disclosure. and is not intended to express or imply that the device or elements shown must have a particular orientation, or be configured or operated in a particular orientation, and thus limit the present disclosure. shouldn't. Also, the terms "first", "second", and "third" are for descriptive purposes only and are not intended to indicate or imply relative importance.

In addition, in the description of this disclosure, the terms “mounting”, “connection”, and “connection” are used unless otherwise specified.
is to be understood in a broad sense, and may be, for example, a fixed connection, a removable connection, or an integral connection. Further, it may be a direct connection, an indirect connection via an intermediate medium, or a communication inside two elements. A person skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific situation.

Also, technical features according to different embodiments of the present disclosure described below may be combined with each other if they are not inconsistent with each other.

FIG. 1 is a structural schematic diagram of a refrigerator according to some embodiments of the present disclosure. As shown in FIG. 1, this refrigerator 1 has a substantially rectangular parallelepiped shape, and its appearance is defined by a storeroom 100 defining a storage space and a plurality of doors 200 provided in the storeroom 100 . Among them, Fig. 2 shows
1 is a structural schematic diagram of a refrigeration door according to some embodiments of the present disclosure; FIG. The door 200 opens the storage room 100
door housing 210 located outside the storage chamber 100, door liner 220 located inside the storage chamber 100, upper end lid 230, lower end lid 240, and door housing 210, door liner 2
20 , a top lid 230 and a bottom lid 240 located between the insulating layers. Usually the insulating layer was filled with a foam material.

The storage chamber 100 has an open box. The storage compartment 100 is vertically separated into a freezer compartment A below and a cold storage compartment 100B above. Each of the separated spaces may have independent storage spaces. Specifically, the freezer compartment 100A is located below the storage compartment 100 and is selectively covered by the drawer-type freezer compartment door A. The space above the freezer compartment 100A is separated on the left side and the right side to form a refrigerator compartment 100B. Cold room 1
00B can be selectively opened and closed by a refrigerating compartment door 200B rotatably attached to refrigerating compartment 100B.

FIG. 3 is an exploded view of a refrigeration door according to some embodiments of the present disclosure; FIG. 4 is a side cross-sectional view of a vacuum packaging apparatus according to some embodiments of the present disclosure; As shown in FIGS. 3 and 4, a vacuum packaging device 300 is provided on the door 200 of the refrigerator. Vacuum packaging machine 300 is used to perform gas extraction and plastic packaging processing on storage bags. The vacuum packaging device 300 is not only installed in the freezer door 200A,
Although it can be installed on the refrigeration door 200B, it is generally preferred to be installed on the refrigeration door 200B so as to match the usage habits of the user because the refrigeration door 200B is located on the upper side.

FIG. 4 is a side cross-sectional view of a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. 5 is a structural schematic diagram of forward and reverse directions of an upper support seat in a vacuum packaging device according to some embodiments of the present disclosure. FIG. 6 is an installation schematic diagram of an upper support seat, a driving device and gas extraction components in a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. 7 is an exploded view of an upper support seat, drive and gas extraction components in a vacuum packaging apparatus according to some embodiments of the present disclosure; FIG. 8 is a connection relationship diagram of an upper support seat and a filtration vessel in a vacuum packaging device according to some embodiments of the present disclosure; FIG. 9 is a connection relationship diagram between an upper support seat and a filtering mesh in a vacuum packaging device according to some embodiments of the present disclosure. FIG. 10 is an exploded view of an upper support seat, heating device and sealing ring according to some embodiments of the present disclosure; Figure 11
4 is a local cross-sectional view of the connection between the upper support seat and the heating device according to some embodiments of the present disclosure; FIG.
FIG. 12 is a schematic diagram of the connection relationship with the driving device when the upper support seat is in the initial position according to some embodiments of the present disclosure; FIG. 13 is a schematic diagram of the connection relationship with the driving device when the upper support seat is in the lowered position according to some embodiments of the present disclosure; FIG. 14A is a structural schematic diagram of a lower support seat, a heat-insulating small door and a locked state of the door according to some embodiments of the present disclosure; FIG. 14B is a structural schematic diagram of a lower support seat, a small heat-insulating door and an unlocked state of the door according to some embodiments of the present disclosure; FIG. 14C is a structural schematic diagram of the lower supporting seat and the heat-insulating small door removed from the door according to some embodiments of the present disclosure; FIG. 15 is a forward and reverse structural schematic diagram of the installation state of the heat-insulating small door and the lower support seat according to some embodiments of the present disclosure. FIG. 16 is an exploded view of a small thermal door, lower support seat and latch hook components according to some embodiments of the present disclosure; FIG. 17 is a structural schematic diagram of a latch hook component attached to the small heat-insulating door according to some embodiments of the present disclosure;

4-17 are one embodiment of a vacuum packaging apparatus 300 according to some examples of this disclosure. As shown in FIG. 4, the vacuum packaging apparatus 300 includes a lower support seat 310 having a first opening chamber 311, an upper support seat 320 having a second opening chamber 321,
including. The upper support seat 320 can move toward or away from the lower support seat 310 under the driving of the driving device 340 . The upper support seat 320 is connected to the lower support seat 310
, the first open chamber 311 and the second open chamber 321 meet to form a gas extraction area 301 in a sealed manner. The vacuum packaging device 300 moves the lower support seat 3 by controlling the automatic elevation of the driving device 340 .
10 and the upper support seat 320 can be locked and unlocked to realize automatic vacuum packaging and improve the intelligent degree of the refrigerator.

In some embodiments, in order to improve the sealing of the gas extraction area 301, as shown in FIG. A seal is provided. Specifically, the lower support seat 310 is provided with a first sealing groove 313 on the outer circumference of the first opening chamber 311 , and the upper support seat 320 is provided with the second opening chamber 311 .
A second sealing groove 323 is provided on the outer circumference of the open chamber 321 . The first sealing groove 313
and the second sealing groove 323 are oppositely provided with a sealing ring 350 therein. The two sealing rings 350 provided in the first sealing groove 313 and the second sealing groove 323 are
By sealing the gas extraction area 301 inside, a reliable sealing of the gas extraction area 301 can be achieved.

In some embodiments, as shown in FIG. 5, the first open chamber 311 or the second
A position regulating portion is provided in the opening chamber 321 and is used to limit the insertion position of the storage bag inserted in the gas extraction region 301.
Avoid extending beyond 1. Specifically, the position regulating portion is a position regulating rib 322 provided inside the first opening chamber 311 or the second opening chamber 321 . The height of the position regulating rib 322 is the same as the first opening chamber 311 or the second opening chamber 32
Greater than 1 depth. The length of the position regulating rib 322 is slightly longer than that of the first opening chamber 31 .
shorter than the length of the first or second open chamber 321; When the user inserts the storage bag into the gas extraction area 301, the position restricting ribs 322 prevent the storage bag from being continuously inserted inside. In other embodiments, the gas extraction region 301 may be further provided with an arrival detection device. Specifically, by using a microwave sensor or an infrared sensor, the presence or absence of the storage bag inserted into the gas extraction area 301 is detected, and a signal indicating whether or not the storage bag has arrived is sent to the controller. do. A controller controls activation of the vacuum pump based on the arrival signal. By providing an arrival detection device, it is automatically detected whether or not the storage bag has arrived, and the controller further automatically controls start/stop of the vacuum pump.

In some embodiments, the vacuum packaging apparatus 300 includes a gas extraction component 33
0 is further included. As shown in FIGS. 6 and 7, the gas extraction component 330 includes a vacuum pump 331 that is in communication with the gas extraction region 301 by a line 335 . A pressure sensing device 332 and a relief device 333 are further provided in said line 335 .
Among them, the pressure sensing device 332 is specifically a pressure sensor, which is used to sense the pressure of the gas extraction region 301 . The relief device 333 is specifically an electric relief valve, and is used to relieve the gas extraction region 301 when the electric relief valve is turned on. When the user performs gas extraction and packaging, the vacuum pump 33
1 is turned on to perform gas extraction processing on the gas extraction region 301 . When the pressure sensing device 332 senses that the pressure in the gas extraction region 301 reaches a predetermined negative pressure value, the controller
The vacuum pump 331 is controlled to stop. By providing a pressure sensor, the degree of vacuum in the gas extraction area 301 can be controlled. The vacuum pump 331 can be started and stopped based on the value detected by the pressure sensor to ensure the effect of gas extraction. After gas extraction and packaging are completed, the electric relief valve can be turned on to automatically control relief in the gas extraction area 301,
The user can easily pull out the storage bag. In order to avoid foreign matter in gas extraction area 301 from entering said vacuum pump 331 via said line 335 , a filtering protection device is further provided in said line 335 . In one embodiment, as shown in FIG. 8, the filter protector is specifically a filter vessel 334 connected in series with line 335 . An inlet and an outlet are provided at the upper end of the filter vessel 334 . The inlet communicates with the gas extraction region 301 by a conduit 335 and the outlet communicates with the vacuum pump 331 by a conduit 335 .
is connected to The foreign matter in the gas extraction area 301 passes through the pipeline 335 to the filtering container 33 .
4 and remain at the bottom of the filtration vessel 334 to avoid foreign matter from entering the vacuum pump 331 . To facilitate cleaning of the filtering vessel 334, more specifically, the filtering vessel 334 includes a can body having an opening and a top cover detachably connected to the can body. Since the inlet and the outlet are provided in the top lid, the can body can be removed and washed at the time of cleaning.
The problem of poor sealing of 35 can be avoided.

In another embodiment, as shown in FIG. 9, the filter protection device is a filter screen 336 provided in the conduit 335 . Specifically, in order to facilitate attachment and detachment, the filter net 336 is provided at a through hole 324 at a position where the upper support seat 320 and the pipe line 335 are connected. After moving the upper support seat 320 to the highest position, the user can remove the filtering net 336 from below.
Attachment/detachment or cleaning operations can be performed on the

There may be one connecting hole between the gas extraction region 301 and the conduit 335 . of course,
In the case of a single connecting hole, two or more connecting holes are provided in order to avoid gas extraction failure caused by foreign matter blocking the connecting hole in the gas extraction area 301 . By connecting the pipes 335, the pipes 335 are arranged in parallel and connected to the header pipe after passing through a three-way or multi-way connector. Among them, the pressure sensor and the electric relief valve are installed in the header pipe.

As shown in FIG. 4 , the vacuum packaging device 300 further includes a packaging area 302 located outside the gas extraction area 301 . The packaging area 302 is used to perform plastic packaging on the containment bag after gas extraction is complete. A thermal insulation pad 360 and a heating device 370 are provided opposed within the package area 302 . Specifically, the heating device 370 is installed in a groove on the lower surface of the upper support seat 320, and the heat insulating pad 360 is installed in a groove on the upper surfaces of the upper support seat 320 and the lower support seat 310. be done. After the upper support seat 320 moves to the gas extraction area 301 forming a seal with the lower support seat 310 , the heat insulation pad 360 in the package area 302 abuts against the heating device 370 . After the gas extraction is completed, the storage bag can be rapidly plastic packaged by the heating device 370 in the package area 302 . After the heating device 370 operates for a predetermined time, the driving device 340 is controlled to move the upper support seat 320
By moving upward, the user can pull out the storage bag to complete the plastic package of the storage bag.

More specifically, as shown in FIGS. 10 and 11, the heating device 370 includes heater bands 371 . A heat-conducting plate 373 is provided under the heater band 371 to enlarge the heating area of the heater band 371 and increase the area of the plastic package of the storage bag to make the plastic package more rigid. The heater band 3
71 extends along the length direction of the upper support seat 320 and is bent upward on both sides of the upper support seat 320; It is fixed to the upper support seat 320 by two insulating plates 372 . Specifically, the insulating plate 372 is made of an insulating material, shaped as a bent plate, and covered with the heater band 371 to prevent the heater band 371 from being exposed to the outside. Furthermore, the two free ends of the heater band 371 are respectively connected to two conductors pulled out from the contact terminals 374 by springs 375 . By providing the spring 375, the heater band 371 is always in a tension state, and the heater band 37
The flatness of 1 is increased, and the heat conductive plate 373 positioned below the heater band 371 is in close contact with the storage bag. It is possible to avoid the problem that the individual positions cannot be tightly adhered and cannot be plastic packaged due to the heater band 371 not being flat.

In the above gas extraction plastic packaging device, the driving device 340 may be an electric driving device or a pneumatic driving device. Due to the large area occupied by the pneumatic drive,
In this embodiment, the driving device 340 utilizes an electric driving device. Specifically, as shown in FIGS. 7, 12 and 13, 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 seat. The transmission mechanism includes a first gear 342 fixedly connected to the motor output shaft and a second gear 343 meshed with the first gear 342.
, a third gear 344 fixedly connected to the second gear 343 , and an output pinion 345 meshed with the third gear 344 . A pinhole is provided below the output pinion 345 . The upper support seat 320 and the output pinion 345 are connected by a pin shaft 346 inserted into the pin hole. By the transmission mechanism, the motor 3
41 is converted into vertical movement of the upper support seat 320 .

In some embodiments, as shown in FIG. 7, the upper support seat 320 and the driving device 340
A connecting plate 347 is provided between them. The connecting plate 347 is screw-connected to the upper support seat 320, and a guide groove 3471 is formed in the connecting plate 347. As shown in FIG. The lower end of the output pinion 345 is inserted into the guide groove 3471, and the guide groove 3471 and the lower end of the output pinion 345 are provided with elongated pinholes.
6 are bored in the guide groove 3471 and the pinhole of the output pinion 345 . When the pin shaft 346 is positioned at the lowest end of the pinhole, the output pinion 34
5 and the groove bottom of the guide groove 3471, there is a gap in which the elastomer 348 is provided.

As shown in FIG. 12, in the initial position, the upper support seat 320 is at the highest position. In the press fitting stage, as shown in FIG. 13, the driving device 340 drives the upper support seat 320 to move downward. In order to ensure close contact between the lower support seat 310 and the upper support seat 320, a predetermined rotational stroke of the motor 341 is generally used as an arrival determination signal. Therefore, by providing an elastomer 348 between the output pinion 345 and the guide groove 3471, the upper support seat 320 moves until it contacts the lower support seat 310, and then the output pinion 345
continue to move downward a certain distance, compressing the elastomer 348, preventing the motor 341 from stalling, protecting the motor 341, and stabilizing the press fit force.

During the gas extraction stage, the closed gas extraction area 301 formed between the lower support seat 310 and the upper support seat 320 has a lower air pressure, so that the upper support seat 320 faces downward under the action of atmospheric pressure. Moving. Since there is an elongated pinhole, when the upper support seat 320 moves downward, the position of the output pinion 345 is maintained and the entire driving device 340 is protected.

A sealed space is formed in the gas extracting area 301 in order to precisely control the displacement of the upper support 320 and determine whether the upper support 320 has arrived. In an embodiment, the motor 341 is a stepping motor 341 and the stepping motor 3
By detecting the rotation stroke of 41, it is determined whether the upper support seat 320 has arrived. In another embodiment, the lower support seat 310 or the upper support seat 320 is provided with a microswitch. After the upper support seat 320 arrives, by triggering the microswitch, the controller controls the driving device 340 to stop and lock at the current position based on the feedback signal of the microswitch. be. One driving device 340 may be provided. The output gear is the upper support seat 320
located in the central region of In this case, since the edge region of the upper support seat 320 and the lower support seat 310 are not tightly fitted together, air is likely to leak in the gas extraction region 301 .
Therefore, the driving device 340 is symmetrically installed on both sides of the upper support seat 320 to provide the sealing of the gas extraction area 301 . Accordingly, one connecting plate 347 is provided, and the connecting plate 347 is provided with two guide grooves 3471 . Two output pinions 345 extend into said guide groove 3471 respectively.

Specifically, as shown in FIGS. 6 and 7 , the driving device 340 and the gas extraction component 330 are both mounted on a mounting seat 305 located above the upper support seat 320 . A through hole 324 is opened in the upper support seat 320 and used to communicate with the gas extraction component 330 . There are three chambers on one side of the mounting seat 305, including a vacuum pump mounting chamber 3051 at the middle position and a driving device mounting chamber 3052 on both left and right sides. In order to preserve the aesthetics of the entire exterior surface of the refrigerator door 200 and the convenience of applying the vacuum packaging apparatus 300, the door housing 210 is provided with an inwardly recessed mounting chamber 211, as shown in FIG. . The driving device 340 is attached to the mounting seat 305 by screws after being connected to the upper supporting seat 320 , and the gas extracting component 330 is inserted through the through hole 3 in the upper supporting seat 320 .
24 and then mounted on the mounting seat 305 to form one component and then mounted in the mounting chamber 211 by screws drilled into the lugs on both sides of the mounting seat 305 as a whole, Each component provides modular mounting, is not exposed to the outer surface, and provides good integrity of the device.

The user can use the vacuum packaging device 300 to perform plastic packaging on food bags, especially when performing plastic packaging on powdered foods such as flour or liquids, etc., when performing gas extraction, the powder or The liquid may enter the gas extraction area 301 and eventually remain in the first open chamber 311 of the lower support seat 310 . Therefore, the lower support seat 310 is detachably attached to the door 200 so that the user can easily wash the food residue in the lower support seat 310 .

Among them, the means for attaching the lower support seat 310 to the door 200 is not unique. In this embodiment, as shown in FIGS.
00 (i.e., the side with the liner) may be removably attached to the door 200 . Since the refrigerator door 200 must necessarily ensure heat insulation,
A heat-retaining small door 250 is provided at a portion of the lower support seat 310 directed toward the inside of the storage chamber 100 . Among them, as shown in FIG. 14C, the door 200 is provided with a mounting hole 201 communicating between the inside and the outside. The lower support seat 310 and the heat insulating small door 250 are connected to the door 2.
00, the lower support seat 310 can be removed and cleaned, and the door 200 can be kept warm at the same time.

In one embodiment, as shown in FIG.
are integrally molded. As shown in FIGS. 16 and 17, the lower support seat 310 and the heat insulating small door 250 are composed of a first housing 251 and a second housing 252 having an open chamber structure, and a first housing 251 and a second housing. 252 with a heat insulating material. Among them, the first housing 251 and the second housing 252 are engaged and connected, and the first housing 251 is connected to the second housing 252.
An extending arm 2511 is provided in the direction away from the , and the lower support seat 310 is formed on the extending arm 2511 . The first open chamber 311 is connected to the extension arm 2511
A first sealing groove 313 is provided on the outer periphery of the opening groove.

In order to further ensure the heat insulation of the door 200 and avoid cold air leakage through the gap between the mounting hole 201 and the small heat insulating door 250, the heat insulating small door 250 is provided as shown in FIGS. A small door seal 253 is provided between the door 250 and the door liner 220 .
Specifically, the first housing 251 is provided with a support arm 2512 at a portion where the door liner 220 is fitted. The size of the support arm 2512 is larger than the size of the mounting hole 201 . A mounting groove surrounding the mounting hole 201 is provided in the support arm 2512, and the small door seal 253 is mounted in the mounting groove.

Specifically, in order to ensure that the small heat insulating door 250 is reliably fixed to the door 200, the heat insulating small door 25 is placed between the small heat insulating door 250 and the door liner 220.
A locking device 400 is provided for locking or unlocking 0 to the door 200 .

14A-14C, 16 and 17, the locking device 400 includes a latch hook component provided on the small thermal door 250 and a locking groove 221 provided on the door liner 220. . The latch hook component includes a latch hook drilled in the heat insulating small door 250 . The latch hook is convertible between a first position and a second position. When the latch hook is in the first position, the locking groove 2
21 to realize the locking of the heat insulating small door 250, and when it is in the second position, the heat insulating small door 250 can be unlocked by disengaging from the locking groove 221. As shown in FIG.

Specifically, in order to improve the reliability of the lock device 400, two lock grooves 221 and two latch hooks are provided. The locking grooves 221 are positioned on both upper and lower sides of the mounting hole 201 . 15-20, the latch hook components include upper latch hook 420, lower latch hook 410 and reset spring 430. As shown in FIGS. As shown in FIG. 19, the lower latch hook 410 includes a hook portion 414 engaged with the lock groove 221 on the lower side, a hinge portion 412 rotatably connected to the heat insulating small door 250, and the heat insulating small door. It includes a handle portion 411 located on the underside of the door 250 . Among them, the handle portion 411 and the hook portion 414 are located on both sides of the hinge portion 412, respectively. The lower latch hook 410 is connected to the upper latch hook 42
It further includes a lower connection part 413 connected to 0. Among them, the lower connection part 413 extends along the upper side of the handle part 411 . Specifically, the end of the lower connecting part 413 is formed as a T-shaped protrusion 4131 . As shown in FIG. 20, the upper latch hook 420 is
It includes a hook portion 421 fitted with the lock groove 221 on the upper side and an upper connection portion 423 connected to the lower latch hook 410 . Specifically, the lower end of the upper connecting part 423 is formed as an open groove structure 4231 , and the T-shaped protrusion 4131 is formed into the open groove 423 .
1 to realize the connection between the upper latch hook 420 and the lower latch hook 410 . The reset spring 430 is provided between the upper latch hook 420 and the upper end surface of the heat insulating small door 250 . More specifically, a connecting shaft 422 is formed at the upper latch hook 420 and the reset spring 430 is fitted to the connecting shaft 422 .

As shown in FIG. 17, a guide positioning portion is formed on the inner surface of the second housing 252, the upper connecting portion 423 is engaged with the guide positioning portion, and the upper latch hook 420 is attached to the guide positioning portion. It is slidable along. Specifically, the guide positioning part is the second housing 2
52 is a hook 2521 formed on the inner surface of the upper connecting portion 4 .
23, and extends a certain distance along the vertical direction. The upper connecting portion 423 is
The two hooks 2521 are engaged with each other.

In the initial state, under the elastic action of the reset spring 430, the upper latch hook 420 and the lower latch hook 410 are positioned at the first position to lock the small door 250 and the door liner 220. . When the user moves the lower latch hook 410 by hand, the lower latch hook 410 rotates around the hinge portion 412 and the hook portion 4
14 moves downward and disengages from the lock groove 221 on the lower side, and the connecting portion pushes the upper latch hook 420 to move upward, and the upper latch hook 420 moves the upper latch hook 420 upward. When the upper latch hook 420 and the lower latch hook 410 are disengaged from the locking groove 221 and positioned at the second position, the small heat insulating door 250 and the door liner 220 are unlocked.

In order to ensure the appearance of the refrigerator door 200, as shown in FIGS. 1 and 2, the refrigerator door 200 is provided with a counter door 260 in the area where the vacuum package device 300 is located. A lower end of the counter door 260 is hinged to the door 200 so that it can be turned to a position perpendicular to the surface of the door housing 210 . The upper end of the counter door 260 is moved to the door housing 21 by the first push switch 212 .
concatenated to 0. By utilizing the counter door 260 structure, the counter door 26
With the 0 open, the storage bag filled with food can be placed on the counter door 260, and then the vacuum packaging process can be performed, which is easy for the user to operate. When the counter door 260 is closed, the aesthetic appearance of the door 200 can be secured.

The inside of the counter door 260 further includes an operating panel 270 wrapped around the outside of the mounting chamber. A slot 271 is molded in the operation panel 270 , and the lower surface of the slot 271 is aligned with the upper surface of the first open chamber 311 . As such, the vacuum packaging device 300 can be entirely hidden behind the operation panel 270 .
When the user performs vacuum plastic packaging, the insertion slot 27 of the operation panel 270 is directly
The opening of the storage bag can be inserted from 1 and directly extended to the upper surface of the first opening chamber 311 . When the upper support seat 320 moves downward, the opening of the storage bag can be placed in the gas extraction area 301 . Specifically, the operation panel 270 is detachably connected to the door housing 210 . A display control device 272 is further provided on the operation panel 270 . The display control device 272 is the vacuum package device 3
00 operating status, and a control button for controlling the starting or stopping of the vacuum packaging apparatus 300 . The user can determine whether or not to allow the storage bag to be pulled out based on the operating status of the vacuum packaging device 300 displayed on the display controller 272 . The display controller 272 may include a "gas extraction plastic package" button, a "seal" button, a "manual gas extraction" button, and a "stop" button. Among them, you can click the "gas extraction plastic package" button to realize the gas extraction procedure and the plastic packaging procedure in one click. "sealing"
A button can be clicked to realize the independent storage bag sealing operation. A "manual gas extraction" button can implement a manual gas extraction process. For example, the "Manual Gas Extraction" button is arranged to allow the user to click once, automatically extract for a few seconds, and then click again, until the gas extraction is considered complete. Alternatively, the user can
The "manual gas extraction" button can be pressed all the way. If you press it all the time, you can do gas extraction all the time. If the user does not press the "manual gas extraction" button, gas extraction is stopped, thereby realizing a manual gas extraction operation by the user. Clicking on the "Stop" button executes the process of relief and raising of the upper support. When the gas extraction process is being performed, the user can click the "stop" button to bring forward the gas extraction procedure if the gas extraction and packaging device considers that a gas extraction abnormality has occurred at this time. can be realized to be completed.

The process of gas extraction and package operation of the vacuum package apparatus is as follows. The operating process includes the process of lowering the upper support seat, the process of gas extracting plastic package, the process of relief and the process of raising the upper support seat.

A detailed process of lowering the upper support seat 320 is shown in FIG. including

Step 101: The upper support seat 320 performs a first stage descent at a first speed.

Step 102: Determine whether the upper support seat 320 has descended to the first predetermined distance; if YES, go to step 103; if NO, go to step 101;

The upper support seat 320 descends at a first speed a first predetermined distance until the sealing ring of the upper support seat 320 contacts the sealing ring of the lower support seat 310 . The upper support is quickly lowered to the lower support 310 at a high first speed to shorten the duration of the vacuum plastic package procedure.

Step 103: The upper support seat 320 performs a second stage descent at a second speed.

Step 104: Determine whether the upper support seat 320 has descended to the second predetermined distance; if YES, go to step 105; if NO, go to step 103; Among them, the second speed is lower than the first speed.

When the upper support seat 320 descends a second predetermined distance, the deformation of the sealing ring on the upper support seat 320 and the sealing ring on the lower support seat 310 reaches a predetermined value, and the predetermined deformation amount seals the gas extraction area. is sufficient for The movement of the upper support seat 320 to the lower support seat 310 at the second speed under the drive of the driving device is a gradual descent stage, the speed of the driving device decreases, the working force increases, and the upper support seat Sealability between 320 and lower support seat 310 is ensured.

If it is determined that the upper support seat 320 has descended to the first predetermined distance, the process of gas extraction plastic packaging is started. A specific process is shown in FIG. Including:

Step 201: Start the vacuum pump.

Step 202: Determine whether the pressure value of the gas extraction region 301 reaches the first pressure value;
If ES, go to step 207; if NO, go to step 203;

The pressure sensing device can determine whether the pressure value in the gas extraction region 301 reaches the first pressure value, and if it is determined that the first pressure value has been reached, the vacuum pump 331 extracts the gas. to stop

Step 203: Determine whether the gas extraction time reaches the predetermined gas extraction time, if YES, go to step 207; if NO, go to step 204;

Determine whether the gas extraction time reaches a predetermined gas extraction time, and if the predetermined gas extraction time is reached, the vacuum pump 331 can also stop gas extraction.

Step 204: Determine whether the pressure value in the gas extraction region 301 reaches the second pressure value. Wherein, the second pressure value is less than the first pressure value. If yes, step 2
05, and if NO, go to step 202;

Step 205: Determine whether the change of the pressure value in the gas extraction region 301 is less than the third pressure value after a predetermined time. Wherein, the third pressure value is less than the second pressure value. YES
If NO, go to step 202 .

If the pressure detection device detects that the pressure value in the gas extraction region 331 reaches the second pressure value and the change in the pressure value is smaller than the third pressure value after a predetermined period of time, there is an abnormality in the gas extraction procedure. confirmed to have occurred. For example, the sealing strip is poorly sealed, or there is foreign matter, the seal is creased, the bag is burst, etc., and the gas extraction needs to be completed ahead of schedule.

Step 206 : Stop gas extraction and relieve the gas extraction area to open the gas extraction area 301 .

After an abnormality occurs in the gas extraction, the vacuum pump 331 can stop the gas extraction and relieve the gas extraction area 301 by the relief device.

Step 207: Stop gas extraction and perform sealing thermal sensing.

After the gas extraction step is completed, the vacuum pump is stopped, the heater band is activated, and the hot melt plastic package is applied to the storage bag.

Step 208: After the encapsulation heating is performed for the heating time, the relief stage is delayed for a first time.

The sealing heating device can delay a first time period after performing the heating plastic package on the storage bag until the heating time is reached before transitioning to the relief stage. The heating time and the first time may be set empirically.

A specific process of lifting the relief and the upper support seat is shown in FIG. Including:

Step 301: The relief device performs a relief operation. The line is relieved by turning on the relief valve.

Step 302: the relief device determines whether to relieve after the relief time, YES
If S, go to step 303; if NO, go to step 301; The relief time may be set empirically.

Step 303: The driving device controls the lifting of the upper support seat 320;

The driving device can drive the upper support seat 320 upward at a third speed to separate from the lower support seat 320 to open the gas extraction area 301 .

Step 304: Determine whether the lifting of the upper support seat 310 reaches a predetermined number of steps, if YES, complete;

After the elevation of the upper support seat 310 reaches a predetermined number of steps, the next gas extraction and packaging operation can be prepared. The predetermined number of steps may reach the starting position of the upper gas extraction region 301 .

The first speed is higher than the second speed, and the third speed is higher than the second speed. first
The predetermined distance, the second predetermined distance, the first speed, the second speed and the third speed may be set empirically. The first predetermined distance and the second predetermined distance can be realized by controlling the predetermined number of steps of the electric motor.

FIG. 24A is a structural schematic diagram of a lower support seat, a heat insulating small door and a locked state of the door according to some embodiments of the present disclosure; FIG. 24B is a lower support seat according to some embodiments of the present disclosure; and FIG. 4 is a structural schematic diagram of a state in which the heat insulating small door is removed from the door. In some embodiments of the present disclosure, FIG.
4A and 24B, the lower support seat 310 is detachably connected to the heat insulating small door 250. As shown in FIG. The heat insulating small door 250 shown in FIG. 25 has a first housing 251 and a second housing 252 having an open chamber structure, and a heat insulating material provided between the first housing 251 and the second housing 252. It is formed. Among them, the first housing 251 and the second housing 252 are engaged, and the first housing 251 extends the extension arm 25 in the direction away from the second housing 252 .
11 is provided, and the lower support seat 310 is detachably connected to the extension arm 2511 .

In some embodiments, a first position regulating portion extending upward is formed at the end of the extension arm 2511 , and a second position is fitted with the first position regulating portion below the lower support seat 310 . A regulation part is molded. The first position restricting portion is engaged with the second position restricting portion to position the lower support seat 310 on the extension arm 2511 . More specifically, the first position restricting portion is a position restricting plate, and the position restricting portion is a baffle formed on the bottom of the lower support seat 310 and extending downward. The baffle is inserted inside the position regulating plate to realize the attachment of the lower support seat 310 to the extension arm 2511, and the gas extraction area is affected by the horizontal movement of the lower support seat 310. The problem of poor sealing can be avoided.

In order to further ensure the heat insulation of the door 200 and avoid cold air leakage through the gap between the mounting hole 201 and the small heat insulating door 250, a gap between the small heat insulating door 250 and the door liner 220 is is provided with a small door seal 253. Specifically, the first housing 25
1, a support arm 2512 is provided at a portion where the door liner 220 is fitted. The size of the support arm 2512 is larger than the size of the mounting hole 201 . A mounting groove surrounding the mounting hole 201 is provided in the support arm 2512, and the small door seal 253 is mounted in the mounting groove.

Specifically, a locking device 400 is provided between the heat insulating small door 250 and the door liner 220 to ensure that the heat insulating small door 250 is reliably fixed to the door 200 . .

FIG. 25 is an exploded view of a small thermal door, lower support seat and latch hook components according to some embodiments of the present disclosure; As shown in FIG. 25, the locking device 400 includes a latch hook 440 hinged to the bottom of the heat insulating small door 250. As shown in FIG. The latch hook 440
A hinge shaft for connecting with the small heat-retaining door 250 is provided in the middle of the heat-retaining small door 2
50. Further, the door liner 220 further includes a locking groove fitted with the latch hook and a reset torsion spring 450 fitted with the hinge shaft. One support leg of the reset torsion spring is abutted against the small heat-insulating door 250 , and another support leg is abutted against the latch hook 440 . In the initial state, the latch hook 440 is positioned at the first position by the torque of the reset torsion spring 450, so that the heat insulating small door 250 is attached to the door.

Specifically, in order to improve the appearance of the small door, a mounting groove is formed in the bottom of the small door, and the latch hook is mounted inside the mounting groove. 24A and 24B are
A procedure for removing the heat insulating small door 250 and the lower support seat 310 is shown. Among them, when the small heat insulating door 250 and the lower support seat 310 are attached to the door 200, the small heat insulating door 250 can be locked by engaging the latch hook with the locking groove. can. When the heat-insulating small door 250 and the lower support seat 310 need to be removed, the latch hook is moved away from the locking groove. When the locking device 400 is in the unlocked state, the heat retaining small door 250 and the lower supporting seat 310 can be pulled out, the lower supporting seat 310 can be removed from the heat retaining small door 250, and the lower supporting seat 310 can be washed. can. In the present embodiment, the lower support seat 310 is detachably connected to the heat insulating small door 250, so that the cleaning of the lower support seat 310 is simplified and facilitated.

FIG. 26A is a structural schematic diagram of a lower support seat, a heat-retaining small door and a locked state of the door according to some embodiments of the present disclosure, and FIG. 26B is a heat-retaining small door according to some embodiments of the present disclosure. 26C is a structural schematic diagram of the door in an unlocked state, and FIG. 26C is a structural schematic diagram of a state in which the lower supporting seat and the heat-insulating small door are removed from the door according to some embodiments of the present disclosure; FIG.

In some embodiments of the present disclosure, as shown in FIGS. 26A-26C, the lower support seat 310
and the heat insulating small door 250 are provided independently of each other. A position restricting portion for restricting the arrival position of the lower support seat 310 is provided on the lower side of the mounting hole 201 . One end of the lower support seat 310 abuts against the position regulating portion, and the other end abuts against the heat insulating small door 250 . The heat-insulating small door 250 may be attached to the door 200 by the locking device 400 in the first or second embodiment.

FIG. 27 is a structural schematic diagram of a refrigerator according to some embodiments of the present disclosure, and FIG. 28 is an exploded view of a refrigeration door according to some embodiments of the present disclosure. In some embodiments of the present disclosure, FIG.
As shown in FIG. 28, in order to ensure the appearance of the refrigerator door 200 and avoid the vacuum packaging device 300 from being exposed outside the door 200, the door 200 is:
A sub-door plate 280 is installed in the area where the vacuum package device 300 is located. The sub door plate 280 has the same width as the other areas of the door 200 . The sub-door plate 280 is connected to this area in the form of an attachment or adhesive. The surface of the subdoor plate 280 aligns with the surfaces of other areas of the door 200 . An insertion opening 281 is molded in the subdoor plate 280 , and the lower surface of the insertion opening 281 is aligned with the upper surface of the first open chamber 311 . When the user performs vacuum plastic packaging, the opening of the storage bag is directly inserted into the insertion opening 281 of the sub-door plate 280 and directly extends to the upper surface of the first opening chamber 311 . When the upper support seat 320 moves downward, the opening of the storage bag can be placed in the gas extraction area 301 . A display control device 282 is provided on the sub door plate 280 . The display control device 282 includes an indicator device for indicating the operating status of the vacuum packaging device 300 and a control button for controlling start or stop of the vacuum packaging device 300 . The user can determine whether or not to allow the storage bag to be pulled out based on the operating status of the vacuum packaging device 300 displayed on the indicating device.

FIG. 29 is a structural schematic view of a refrigerator according to some embodiments of the present disclosure, FIG. 30 is an exploded view of a refrigeration door according to some embodiments of the present disclosure, and FIG. 31 is the present disclosure. 3 is an exploded view of a lower support seat according to some embodiments of FIG. In some embodiments of the present disclosure, as shown in FIGS. 29-31,
The lower support seat 310 is detachably attached to the door 200 from the outside of the door 200 .

In some embodiments, the lower support seat 310 is detachably connected to the door 200 in a push-pump-up manner. Among them, as shown in FIGS. 29 and 30, a second push switch 380 is installed on the connection surface between the lower support seat 310 and the door 200 .
The second push switch 380 includes a push lock 381 and a latch 382. As shown in FIG.
A groove in which the latch 382 is provided is formed on the inner surface of the lower support seat 310 , and the push lock 381 is fixed to the outer surface of the door 200 .

FIG. 32A is a structural schematic diagram of the locked state of the lower support seat and the door according to some embodiments of the present disclosure, and FIG. It is a structural schematic diagram of the removed state. As shown in FIG. 32A, the lower support seat 31 extends along the direction perpendicular to the door 200.
When 0 is pressed, push lock 381 is engaged with latch 382 and lower support seat 310 is attached to door 200 . 32B, when the lower support seat 310 is pushed again, the push lock 381 releases the latch 382, allowing the lower support seat 310 to be removed from the door 200. As shown in FIG. The user can wash the lower support seat 310 independently, which is easy to operate.

In some embodiments of the present disclosure, as shown in FIGS. 33A and 33B, the lower support seat 310
is detachably attached to the door 200 from the outside of the door 200 .

In some embodiments, the lower support seat 310 is detachably attached to the door 20 in a form of engagement.
concatenated to 0. A first engagement portion 391 and a second engagement portion 392 are formed in the lower support seat 310 and the door 200, respectively. Among them, the first engaging part 391 is formed on the lower surface of the lower support seat 310 and is specifically a bending hook. The second engaging portion 392 is fixedly connected to the front surface of the door 200 . The lower support seat 310 is moved toward the door 200 until the first engaging portion 391 and the second engaging portion 392 are engaged with each other, thereby mounting the lower support seat 310 . At the time of removal, by pulling the lower support seat 310 outward, the first engaging portion 391 and the second engaging portion 392 are elastically deformed and separated. The user can wash the lower support seat 310 independently, which is easy to operate.

Obviously, the above examples are only for the purpose of clarifying what has been given,
It is not intended to limit the embodiments. Persons skilled in the art can make other different changes or modifications based on the above description. It is not necessary to cover all embodiments here. Any obvious changes or modifications resulting therefrom should fall within the protection scope of the present disclosure.

Claims (9)

A refrigerator including a vacuum packaging device located inside a door,
The vacuum packaging apparatus includes a lower support seat, an upper support seat, and a gas extraction component, the lower support seat being provided on its upper side with a first open chamber and a sealing ring surrounding the first open chamber. be
the upper support seat is provided on the underside with a corresponding second open chamber and a sealing ring surrounding said second open chamber;
The upper support seat is movable toward or away from the lower support seat under the driving of a driving device,
The upper support seat moves at a first speed until the seal ring on the upper support seat contacts the seal ring on the lower support seat, and then moves at a second speed until the seal ring has a predetermined deformation amount.
stop after moving to the lower support seat at a speed,
said first open chamber and said second open chamber abutting to form a gas extraction area in a sealed manner;
the first speed is greater than the second speed,
a gas extraction component in communication with the gas extraction region by a conduit and used to provide gas extraction or relief to the gas extraction region;
A refrigerator characterized by: The vacuum packaging apparatus further includes a packaging area including a heater band positioned above the upper support seat and a heat insulating pad against the upper side of the lower support seat,
When the pressure in the gas extraction area satisfies a predetermined condition, the heater band performs hot-melt plastic packaging on a storage bag inserted in the package area.
The refrigerator according to claim 1, characterized by: the gas extraction component includes a vacuum pump and a pressure sensing device for sensing pressure in the gas extraction region;
After the upper support seat is abutted and sealed with the lower support seat, the vacuum pump is activated;
After the pressure value detected by the pressure detection device becomes smaller than a first predetermined value, the vacuum pump is stopped;
The refrigerator according to claim 1, characterized by: The driving device includes:
a motor;
a transmission mechanism having an output end coupled to the upper support seat used to convert rotary motion of the motor into linear motion;
The transmission mechanism includes a rack and pinion transmission mechanism,
A pinhole is provided below the output pinion of the rack and pinion transmission mechanism,
The upper support seat is connected to the output pinion by a pin shaft inserted into the pinhole,
The pinhole is an elongated hole extending along the longitudinal direction,
The refrigerator according to claim 1, characterized by: The rack and pinion transmission mechanism includes a first gear fixedly connected to the output shaft of the motor, a second gear meshed with the first gear, a third gear fixedly connected to the second gear, and the third gear.
including the output pinion meshed with a gear;
5. The refrigerator according to claim 4 , characterized in that: A connecting plate is provided between the upper support seat and the driving device,
The connecting plate is screw-connected to the upper support seat, a guide groove is formed in the connecting plate, the lower end of the output pinion is inserted into the guide groove, and the pin shaft extends between the guide groove and the output pinion. drilled in the pinhole,
6. The refrigerator according to claim 5 , characterized in that: When the pin shaft is positioned at the lowest end of the pinhole, there is a gap provided with an elastomer between the lower end surface of the output pinion and the groove bottom of the guide groove,
7. The refrigerator according to claim 6 , characterized by: Two driving devices are provided, and the two driving devices are provided symmetrically on both sides of the upper support seat,
One connecting plate is provided, the connecting plate is provided with two guide grooves,
two output pinions each extending into said guide groove;
8. The refrigerator according to claim 7 , characterized by: the drive and the gas extraction component are mounted on the same mounting seat,
a mounting chamber recessed in the door housing;
the mounting seat and the upper support seat are mounted within the mounting chamber;
The refrigerator according to claim 1, characterized by:

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