CN111998593B

CN111998593B - A refrigerator

Info

Publication number: CN111998593B
Application number: CN201910447688.0A
Authority: CN
Inventors: 张鹏; 王美艳; 周晓东; 张树栋; 杨帅岭; 李亚婧
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2019-05-27
Filing date: 2019-05-27
Publication date: 2024-12-24
Anticipated expiration: 2039-05-27
Also published as: CN111998593A

Abstract

The present invention discloses a refrigerator, comprising a storage chamber and a door body, wherein a vacuum packaging device is provided on the door body, comprising a lower support, wherein a first opening cavity and a heat insulation pad are sequentially provided on the upper side of the lower support along a direction from close to the door body to far away from the door body; an upper support, wherein a second opening cavity and a heating device are correspondingly provided on the lower side of the upper support along a direction from close to the door body to far away from the door body, and the upper support can move in a direction close to or far away from the lower support under the driving of a driving device; after the upper support moves in a direction close to the lower support, the first opening cavity is docked with the second opening cavity and sealed to form a vacuum zone, and the heating device is docked with the heat insulation sealing strip to form a packaging zone; a vacuum assembly, wherein the vacuum assembly is connected with the vacuum zone through a pipeline, and is used to vacuumize or relieve pressure on the vacuum zone. The refrigerator of the present invention can perform vacuum packaging treatment on storage bags containing food; and can perform vacuum preservation treatment on food stored in various compartments of the refrigerator, thereby expanding the preservation range.

Description

Refrigerator with a refrigerator body

Technical Field

The invention relates to the field of household appliances, in particular to a refrigerator.

Background

In recent years, health awareness of people is gradually improved, and demands for food preservation are also improved, so that the refrigerator is used as a household appliance for storing food, and the food preservation and storage become technical demands to be solved in the field of refrigerators.

At present, different preservation technologies are provided by various manufacturers aiming at the food preservation and storage problems. For example, vacuum preservation techniques, in which conditions for spoilage of food are changed in a vacuum state. Firstly, in a vacuum environment, microorganisms and various enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time, secondly, in the vacuum state, oxygen in a container is greatly reduced, various chemical reactions can not be completed, foods can not be oxidized, and the foods can be kept fresh for a long time.

The vacuum fresh-keeping technology applied to the existing refrigerator mainly comprises the steps of arranging a sealed drawer in the refrigerator, vacuumizing the drawer through a small vacuum pump arranged outside the drawer, keeping the drawer in a negative pressure state, and achieving fresh keeping of food materials in the drawer. The fresh-keeping mode has the following limitations that 1, the vacuum pump occupies part of the storage space of the refrigerating chamber because the vacuum pumping treatment is realized, 2, the fresh-keeping mode needs to seal the drawer, otherwise, the drawer cannot be in a vacuum state, so that higher requirements are put on the forming and assembling processes of the drawer, 3, the fresh-keeping mode can only keep food materials in the drawer, and cannot keep fresh for food materials in other areas of the refrigerator.

Disclosure of Invention

The invention aims to solve the technical problems that the existing refrigerator has an unsatisfactory fresh-keeping effect, and further provides a refrigerator which is low in cost, does not occupy storage space and can keep food materials in all areas fresh.

The invention discloses a refrigerator which comprises a storage room and a door body for opening or closing the storage room, wherein a vacuum packaging device is arranged on the door body, the vacuum packaging device comprises a lower support, a first opening cavity and a heat insulation pad are sequentially arranged on the upper side of the lower support along the direction from the position close to the door body to the position far away from the door body, a second opening cavity and a heating device are correspondingly arranged on the lower side of the upper support along the direction from the position close to the door body to the position far away from the door body, the upper support can move towards the direction close to or far away from the lower support under the driving of a driving device, after the upper support moves towards the direction close to the lower support, the first opening cavity is in butt joint with the second opening cavity and is sealed to form a vacuum pumping area, the heating device is in butt joint with the heat insulation sealing strip to form a packaging area, and the vacuum pumping assembly is communicated with the vacuum pumping area through a pipeline and is used for vacuumizing or decompressing the vacuum pumping area.

Compared with the prior art, the technical scheme of the invention has the following technical effects:

The refrigerator is provided with the vacuum packaging device on the door body, the vacuum packaging device can be used for carrying out vacuum packaging treatment on a storage bag containing food materials to be placed in the refrigerator, compared with the existing vacuum drawer, the vacuum packaging device can be used for carrying out vacuumizing and fresh-keeping treatment on food materials stored in various compartments of the refrigerator, the fresh-keeping range is enlarged, in addition, the upper support in the vacuum packaging device is provided with the heating device, and the lower support is provided with the heat insulation pad, so that the risk of scalding caused by the fact that the heating device is easily touched by a user when the heating device is arranged on the lower side can be avoided.

Drawings

The objects and advantages of the present invention will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:

Fig. 1 is a schematic view of a refrigerator according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a refrigeration door in embodiment 1 of the present invention;

FIG. 3 is an exploded view of a refrigeration door according to embodiment 1 of the present invention;

FIG. 4 is a side cross-sectional view of the vacuum packaging apparatus of the present invention;

FIG. 5 is a schematic view showing the structure of the upper support of the vacuum packaging device in the forward and reverse directions;

FIG. 6 is a schematic diagram illustrating the assembly of the upper support, the driving device and the vacuum pumping assembly in the vacuum packaging device of the present invention;

FIG. 7 is an exploded view of the upper support, drive and evacuation module of the vacuum packaging apparatus of the present invention;

FIG. 8 is a diagram showing the connection relationship between the upper support and the filter vessel in the vacuum packaging apparatus of the present invention;

FIG. 9 is a diagram showing the connection relationship between the upper support and the filter screen in the vacuum packaging device of the present invention;

FIG. 10 is an exploded view of the upper support and heating device and seal ring of the present invention;

FIG. 11 is a partial cross-sectional view of the connection of the upper support and the heating device of the present invention;

FIG. 12 is a schematic view showing the connection relationship between the upper support and the driving device when the upper support is in the initial position;

FIG. 13 is a schematic view showing the connection relationship between the upper support and the driving device when the upper support is in the lowered position;

fig. 14A is a schematic structural view of the lower support and the thermal insulation small door and the door body in the locked state in embodiment 1 of the present invention;

Fig. 14B is a schematic structural view of the lower support and the thermal insulation small door and the door body in the unlocking state in embodiment 1 of the present invention;

FIG. 14C is a schematic view showing the structure of the embodiment 1 of the invention in which the lower support and the thermal insulation door are removed from the door body;

FIG. 15 is a schematic view showing the structure of the insulating door and the lower support in the assembled state in the embodiment 1 of the present invention;

FIG. 16 is an exploded view of the insulating door, lower support and latch hook assembly of embodiment 1 of the present invention;

Fig. 17 is a schematic structural view of the latch hook assembly of embodiment 1 of the present invention mounted on the small thermal insulation door;

FIG. 18 is a partial cross-sectional view of the latch hook assembly of embodiment 1 of the present invention mounted to the thermal insulation door;

fig. 19 is a perspective view of the lower shackle in embodiment 1 of the present invention;

fig. 20 is a schematic diagram of the forward and reverse structures of the upper latch hook in embodiment 1 of the present invention;

FIG. 21A is a schematic view of the structure of the lower support and the thermal insulation door and door in the locked state in embodiment 2 of the present invention;

FIG. 21B is a schematic view showing the structure of the embodiment 2 of the invention in which the lower support and the thermal insulation door are removed from the door body;

FIG. 22 is an exploded view of the insulating door, lower support and latch hook assembly of embodiment 2 of the present invention;

FIG. 23A is a schematic view showing the structure of the lower support and the thermal insulation door and door body in the locked state in embodiment 3 of the present invention;

fig. 23B is a schematic structural diagram of the thermal insulation small door and the door body in an unlocked state in embodiment 3 of the present invention;

FIG. 23C is a schematic view showing the structure of the invention in which the lower support and the thermal insulation door are removed from the door body in embodiment 3;

fig. 24 is a schematic view showing the structure of a refrigerator according to embodiment 4 of the present invention;

FIG. 25 is an exploded view of a refrigeration door according to example 4 of the present invention;

fig. 26 is a schematic structural view of a refrigerator according to embodiment 5 of the present invention;

FIG. 27 is an exploded view of a refrigeration door according to example 5 of the present invention;

FIG. 28 is an exploded view of the lower support in example 5 of the present invention;

Fig. 29A is a schematic view showing the structure of the lower support and the door body in the locked state in embodiment 5 of the present invention;

fig. 29B is a schematic view showing a structure in which the lower holder is removed from the door body in embodiment 5 of the present invention;

FIG. 30A is a schematic view showing the structure of the lower support and door in the locked state according to embodiment 6 of the present invention;

fig. 30B is a schematic view showing a structure in which the lower holder is detached from the door body in embodiment 6 of the present invention.

Detailed Description

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, directly connected, or indirectly connected through an intermediary, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

Example 1

Fig. 1 is a perspective view of one embodiment of the refrigerator of the present invention, and referring to fig. 1, the refrigerator 1 of the present embodiment has an approximately rectangular parallelepiped shape. The refrigerator 1 is defined in external appearance by a storage room 100 defining a storage space and a plurality of door bodies 200 provided in the storage room 100, wherein, referring to fig. 2, the door bodies 200 include a door body case 210 positioned outside the storage room 100, a door body case 220 positioned inside the storage room 100, an upper end cap 230, a lower end cap 240, and a heat insulating layer positioned between the door body case 210, the door body case 220, the upper end cap 230, and the lower end cap 240, and typically, the heat insulating layer is filled with a foaming material.

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

As shown in fig. 3 and 4, the door body 200 of the refrigerator is provided with a vacuum packaging device 300, the vacuum packaging device 300 is used for vacuumizing and plastic packaging the storage bag, the vacuum packaging device 300 can be arranged on the freezing door body 200A or the refrigerating door body 200B, and the refrigerating door body 200B is arranged on the upper side, so that the vacuum packaging device is preferably arranged on the refrigerating door body 200B in order to conform to the use habit of a user.

Referring to fig. 4-17, in an embodiment of the vacuum packaging device 300, as shown in fig. 4, the vacuum packaging device 300 includes a lower support 310, the lower support 310 is provided with a first open cavity 311, an upper support 320 is provided with a second open cavity 321, the upper support 320 can move towards or away from the lower support 310 under the driving of a driving device 340, and after the upper support 320 moves towards the lower support 310, the first open cavity 311 is butted with the second open cavity 321 and sealed to form a vacuum pumping area 301. The 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 the automatic vacuum packaging, and improves the intelligent degree of the refrigerator.

Specifically, in order to improve the tightness of the vacuum pumping area 301, as shown in fig. 4, the lower support 310 is provided with a first sealing groove 313 on the outer periphery of the first open cavity 311, the upper support 320 is provided with a second sealing groove 323 on the outer periphery of the second open cavity 321, and the first sealing groove 313 is opposite to the second sealing groove 323 and is internally provided with a sealing ring 350. Two sealing rings 350 arranged in the first sealing groove 313 and the second sealing groove 323 seal the vacuum pumping area 301 on the inner side, so that reliable sealing of the vacuum pumping area 301 is realized.

Specifically, as shown in fig. 5, a limiting portion is disposed in the first opening cavity 311 or the second opening cavity 321 and is used for limiting an insertion position of a storage bag inserted into the vacuum pumping area 301 to prevent the opening position of the storage bag from extending out of the vacuum pumping area 301, specifically, the limiting portion is a limiting rib 322 disposed in the first opening cavity 311 or the second opening cavity 321, a height of the limiting rib 322 is greater than a depth of the first opening cavity 311 or the second opening cavity 321, and a length of the limiting rib 322 is slightly lower than a length of the first opening cavity 311 or the second opening cavity 321. In other embodiments, the vacuum pumping area 301 may be further provided with an in-place detection device, specifically, a microwave sensor or an infrared sensor may be used for detecting whether the storage bag inserted into the vacuum pumping area 301 is in place or not, and further sending a signal indicating whether the storage bag is in place to the controller, where the controller may control the vacuum pump to be turned on according to the in-place signal. The in-place detection device can automatically detect whether the storage bag is in place or not, and the controller can automatically control the on-off of the vacuum pump.

The vacuum packaging device 300 further comprises a vacuum pumping assembly 330, as shown in fig. 6 and 7, the vacuum pumping assembly 330 comprises a vacuum pump 331 communicated with the vacuum pumping area 301 through a pipeline 335, the pipeline 335 is further provided with a pressure detection device 332 and a pressure release device 333, wherein the pressure detection device 332 is specifically a pressure sensor and is used for detecting the pressure of the vacuum pumping area 301, the pressure release device 333 is specifically an electric pressure release valve, and when the electric pressure release valve is opened, the vacuum pumping area 301 is released. When the user performs vacuum packaging, the vacuum pump 331 is turned on to perform vacuum processing on the vacuum pumping area 301, and when the pressure detection device 332 detects that the pressure of the vacuum pumping area 301 reaches a set negative pressure value, the controller controls the vacuum pump 331 to stop. The vacuum degree of the vacuumizing area 301 can be controlled by arranging a pressure sensor, and the vacuum pump 331 can be switched on and off according to the detection value of the pressure sensor, so that the vacuumizing effect is ensured. After the vacuumizing and packaging operations are completed, the vacuumizing area 301 can be automatically controlled to decompress by opening the electric decompression valve, so that a user can take out the storage bag conveniently. In order to prevent the foreign matters in the vacuum pumping area 301 from entering the vacuum pump 331 through the pipeline 335, the pipeline 335 further includes a filtering protection device, in one embodiment, as shown in fig. 8, the filtering protection device is specifically a filtering container 334 connected in series on the pipeline 335, an inlet and an outlet are disposed at the upper end of the filtering container 334, the inlet is communicated with the vacuum pumping area 301 through the pipeline, the outlet is communicated with the vacuum pump 331 through the pipeline, and the foreign matters in the vacuum pumping area 301 enter the filtering container 334 through the pipeline 335 and remain at the bottom of the filtering container 334, so as to prevent the foreign matters from entering the vacuum pump 331. In order to facilitate cleaning 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 detached for cleaning during cleaning, so that the problem that the sealing performance of the pipeline 335 is poor due to frequent dismounting of the pipeline 335 is avoided.

In another embodiment, as shown in fig. 9, the filtering protection device is a filtering net 336 disposed on the pipe 335, specifically, for easy assembly and disassembly, the filtering net 336 is disposed at the position of the vent 324 at the connection position of the upper support 320 and the pipe 335, and after the user moves the upper support 320 to the highest position, the filtering net 336 can be assembled, disassembled or cleaned from the lower side.

The connection hole between the vacuum pumping area 301 and the pipeline 335 may be one, which, of course, may be connected in parallel between the pipelines 335 by providing two or more connection holes respectively connected with the pipeline 335, and then connected with the main pipe by a tee or a multi-way connector, in order to avoid the vacuum pumping failure caused by the blockage of the connection hole by the foreign matter in the vacuum pumping area 301 during the single connection hole, wherein the pressure sensor and the electronic pressure release valve are provided on the main pipe.

As shown in fig. 4, the vacuum packaging device 300 further includes a packaging area 302 located outside the vacuum pumping area 301, the packaging area 302 is used for performing plastic packaging processing on the storage bag after the vacuum pumping is finished, a heat insulation pad 360 and a heating device 370 are disposed in the packaging area 302, specifically, the heating device 370 is mounted in a groove on the lower surface of the upper support 320, the heat insulation pad 360 is mounted in a groove on the upper surface of the lower support 310 of the upper support 320, and when the upper support 320 moves to the vacuum pumping area 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 vacuumizing is completed, the storage bag can be rapidly packaged by the heating device 370 of the packaging area 302, and after a set period of time is set according to the operation of the heating device 370, the driving device 340 is controlled to drive the upper support 320 to move upwards, so that a user can draw out the storage bag to complete the packaging of the storage bag. Since the temperature of the heating device 370 cannot be lowered immediately after the vacuum-pumping plastic package is completed, the heating device 370 is disposed at the upper side and can move along with the upper supporter 320, which can avoid the risk of being touched by a user when the heating device 370 is disposed at the lower side.

More specifically, as shown in fig. 10 and 11, the heating device 370 includes a heating wire 371, and a heat conducting plate 373 is disposed on the lower side of the heating wire 371, and is used for diffusing the heating area of the heating wire 371 to increase the plastic package area of the storage bag, so that the plastic package is firm. The heater strip 371 extends along the length direction of the upper support 320 and is bent upwards at two sides of the upper support 320, the free end of the heater strip 371 extending to the upper side of the upper support 320 is fixed on the upper support 320 through an insulating plate 372, specifically, the insulating plate 372 is made of insulating materials and is formed into a bent plate, and the bent plate is wrapped on the outer side of the heater strip 371 to prevent the heater strip 371 from being exposed to the outer side. Furthermore, the two free ends of the heating wire 371 are respectively connected with two wires led out by the connecting terminal 374 through the springs 375, the heating wire 371 can be always in a tensioned state through the arrangement of the springs 375, so that the flatness of the heating wire 371 is higher, the heat conducting plate 373 positioned on the lower side of the heating wire 371 is tightly contacted with a storage bag, and the problem that individual positions are not contacted with each other and are not sealed by plastic is avoided due to the fact that the heating wire 371 is uneven.

In the above vacuum-pumping plastic package device, the driving device 340 may be an electric driving device or an air-pressure driving device, and the air-pressure driving device occupies a large space, so in this embodiment, the driving device 340 is an electric driving device. Specifically, as shown in fig. 7, 12 and 13, the driving device 340 includes a motor 341 and a transmission mechanism, the transmission mechanism is used for converting the rotation motion of the motor into linear motion, and an output end of the transmission mechanism is connected with the upper support. The transmission mechanism comprises 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 rack 345 meshed with the third gear 344, wherein a pin hole is arranged on the lower side of the output rack 345, and the upper support 320 is connected with the output rack 345 through 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 supporter 320.

Specifically, as shown in fig. 7, a connection plate 347 is disposed between the upper support 320 and the driving device 340, the connection plate 347 is in threaded connection with the upper support 320, a guide groove 3471 is formed on the connection plate 347, the lower end of the output rack 345 is inserted into the guide groove 3471, elongated pin holes are respectively disposed at the lower ends of the guide groove 3471 and the output rack 345, the pin shaft 346 is disposed in the guide groove 3471 and the pin holes of the output rack 345 in a penetrating manner, a gap is formed between the lower end surface of the output rack 345 and the bottom of the guide groove 3471, and an elastomer 348 is disposed in the gap.

In the pressing stage, as shown in fig. 13, the driving device 340 drives the upper support 320 to move downward, and in order to ensure that the lower support 310 is tightly matched with the upper support 320, the set rotation stroke of the motor 341 is generally used as an in-place judging signal, so that the elastic body 348 is arranged between the output rack 345 and the guide groove 3471, after the upper support 320 moves downward to be in contact with the lower support 310, the output rack 345 can continuously move downward for a certain distance, the elastic body 348 is compressed, the motor 341 is prevented from being blocked, the motor 341 is protected, and the pressing force is kept stable.

In the vacuum-pumping stage, the airtight vacuum-pumping area 301 formed between the lower support 310 and the upper support 320 is reduced in air pressure, and the upper support 320 moves downward under the action of atmospheric pressure, at this time, the output rack 345 keeps a fixed position when the upper support 320 moves downward due to the existence of the elongated pin hole, so as to protect the whole driving device 340.

In order to precisely control the movement displacement of the upper support 320 and further determine whether the upper support 320 is moved in place so that the vacuum pumping area 301 forms a sealed space, in the embodiment, the motor 341 is a stepper motor 341, and the upper support 320 is determined whether to be moved in place by detecting the rotation stroke of the stepper motor 341. In another embodiment, a micro switch is provided on the lower support 310 or the upper support 320, and the controller controls the driving device 340 to stop and lock at the current position according to the feedback signal of the micro switch by triggering the micro switch after the upper support 320 moves to the position.

The driving means 340 may be provided as one, and the output gear is located at a central region of the upper supporter 320, which may easily cause the edge region of the upper supporter 320 to be not tightly engaged with the lower supporter 310, resulting in the leakage of the vacuum pumping area 301, and thus, in order to provide the sealing property of the vacuum pumping area 301, the driving means 340 are provided at both sides of the upper supporter 320, respectively. Correspondingly, one connecting plate 347 is arranged, the connecting plate 347 is provided with two guide grooves 3471, and two output racks 345 respectively extend into the guide grooves 3471.

Specifically, as shown in fig. 6 and 7, the driving device 340 and the vacuum pumping assembly 330 are 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 324 for communicating with the vacuum pumping assembly 330. Wherein, one side of the mounting seat 305 is provided with three chambers, which include a vacuum pump mounting cavity 3051 located at a middle position, and a driving device mounting cavity 3052 located at left and right sides. In order to maintain the overall aesthetic appearance 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 body housing 210 is provided with an inwardly recessed mounting cavity 211, the driving device 340 is connected with the upper support 320 and then connected to the mounting seat 305 through a screw, the vacuumizing assembly 330 is connected with the vent hole 324 on the upper support 320 and then mounted on the mounting seat 305, after forming an assembly, one side of the mounting seat 305 with the cavity faces the door body housing 210, and the whole is mounted in the mounting cavity 211 through screws penetrating through lugs on two sides of the mounting seat 305, so that the modularized assembly of each part is realized, and each part is not exposed on the outer surface and the integrity of the device is better.

When a user uses the vacuum packaging apparatus 300 to mold a food bag, particularly when a food bag having powder shape such as flour or liquid is molded, the powder or liquid may enter the vacuum-pumping area 301 during vacuum pumping and finally accumulate in the first opening 311 of the lower support 310, so that the lower support 310 is detachably mounted with respect to the door body 200 for cleaning food residues in the lower support 310.

In this embodiment, as shown in fig. 14A to 14C, the lower support 310 may be detachably mounted on the door body 200 from the inner side (i.e. the side with the inner container) of the door body 200. Since the door body 200 of the refrigerator must secure heat insulation, the lower supporter 310 is provided with the heat insulating small door 250 toward the inner portion of the storage chamber 100. As shown in fig. 14C, the door body 200 is provided with an installation hole 201 for communicating the inside and the outside, and the lower support 310 and the small heat-insulating door 250 are inserted into the installation hole 201 from the inner side of the door body 200, so as to realize the disassembly and cleaning of the lower support 310 and the heat-insulating performance of the door body 200.

In one embodiment, as shown in fig. 13, the lower support 310 is integrally formed with the small insulating door 250, and as shown in fig. 14 and 15, the lower support 310 and the small insulating door 250 are formed of a first case 251 and a second case 252 having an open cavity structure and a heat insulating member provided between the first case 251 and the second case 252. The first housing 251 is in snap connection with the second housing 252, an extension arm 2511 is provided on the first housing 251 in a direction away from the second housing 252, the lower support 310 is formed on the extension arm 2511, the first opening cavity 311 is an opening slot formed on the upper side of the extension arm 2511, and a first sealing slot 313 is provided on the outer periphery of the opening slot.

In order to further secure the heat insulation of the door body 200, the small door seal 253 is provided between the small door 250 and the door liner 220 as shown in fig. 14 and 15, so as to avoid cold leakage through the gap between the mounting hole 201 and the small door 250. Specifically, the first housing 251 is provided with a support 2512 at a position where the first housing 251 is engaged with the door liner 220, and the size of the support 2512 is larger than that of the mounting hole 201. The support 2512 is provided with a mounting groove surrounding the mounting hole 201, and the small door seal 253 is mounted in the mounting 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 door liner 220, and the locking device 400 is used for locking or unlocking the small thermal insulation door 250 to the door body 200.

As shown in fig. 14A-14C, 15 and 16, the locking device 400 includes a locking hook assembly disposed on the small thermal insulation door 250, and a locking slot 221 disposed on the door liner 220, where the locking hook assembly includes a locking hook penetrating through the small thermal insulation door 250, and the locking hook is convertible between a first position and a second position, where the locking hook can cooperate with the locking slot 221 to lock the small thermal insulation door 250 in the first position, and is disengaged from the locking slot 221 in the second position to unlock the small thermal insulation door 250.

Specifically, in order to improve the reliability of the locking device 400, two locking grooves 221 and two locking hooks are provided, respectively, wherein the locking grooves 221 are located at the upper and lower sides of the mounting hole 201. As shown in fig. 15-20, the latch hook assembly includes upper latch hook 420 and lower latch hook 410, and return spring 430. As shown in fig. 19, the lower latch hook 410 includes a hooking portion 414 engaged with the locking groove 221 at the lower side, a hinge portion 412 rotatably connected to the small thermal insulation door 250, and a handle portion 411 disposed at the lower side of the small thermal insulation door 250, wherein the handle portion 411 and the hooking portion 414 are disposed at both sides of the hinge portion 412, respectively. The lower latch hook 410 further includes a lower connection portion 413 connected to the upper latch hook 420, wherein the lower connection portion 413 extends above the handle portion 411. Specifically, an end portion of the lower connection portion 413 is formed as a T-shaped protrusion 4131. As shown in fig. 20, the upper latch hook 420 includes an upper connection portion 423 connected to the lower latch hook 410 in cooperation with the latch groove 221 on the upper side. Specifically, the lower end portion of the upper connecting portion 423 is formed into an open slot structure 4231, and the T-shaped protrusion 4131 is inserted into the open slot 4231 to connect the upper latch hook 420 and the lower latch hook 410. The return spring 430 is disposed between the upper latch hook 420 and the upper end surface of the small thermal insulation door 250. More specifically, the upper latch hook 420 is formed with a connection shaft 422, and the return spring 430 is sleeved on the connection shaft 422.

As shown in fig. 15, a guiding and positioning portion is formed on the inner surface of the second housing 252, the upper connecting portion 423 is clamped to the guiding and positioning portion, and the upper latch hook 420 can slide along the guiding and positioning portion. Specifically, the guiding and positioning portion is a hook 2521 formed on the inner surface of the second housing 252, and the hook 2521 is located at the left and right sides of the upper connecting portion 423 and extends a certain distance in the up-down 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 latch hook 420 and the lower latch hook 410 are located at the first position to lock the thermal insulation small door 250 and the door inner container 220, when a user pulls the lower latch hook 410 by hand, the lower latch hook 410 rotates around the hinge part 412, the hook part 414 moves downward to be separated from the lower locking groove 221, meanwhile, the connecting part pushes the upper latch hook 420 upward to move, the upper latch hook 420 is separated from the upper locking groove 221, and the upper latch hook 420 and the lower latch hook 410 are located at the second position to unlock the thermal insulation small door 250 and the door inner container 220.

In order to ensure the aesthetic appearance of the refrigerator door 200, referring to fig. 1 and 2, a bar door 260 is provided on the refrigerator door 200 at the area where the vacuum packaging device 300 is located, the lower end of the bar door 260 is hinged to the door 200 and can be turned to a position perpendicular to the surface of the door housing 210, and the upper end of the bar door 260 is connected to the door housing 210 through a first push-and-spring switch 212. The adoption of the structure of the bar counter door 260 can carry out vacuum packaging treatment after the storage bag filled with food is placed on the bar counter door 260 in a state of opening the bar counter door 260, thereby being convenient for users to operate. When the bar door 260 is closed, the external beauty of the door body 200 is ensured.

The inside of the bar counter door 260 further comprises an operation panel 270 covered outside the installation cavity, a plug interface 271 is formed on the operation panel 270, and the lower surface of the plug interface 271 is flush with the upper surface of the first open cavity 311. Thus, the vacuum packaging device 300 can be hidden on the rear side of the operation panel 270. When the user performs vacuum molding, the opening of the storage bag can be directly inserted from the insertion port 271 of the operation panel 270 and directly extends to the upper surface of the first opening cavity 311, and when the upper support 320 moves down, the opening of the storage bag can be placed in the vacuum pumping area 301. Specifically, the operation panel 270 is detachably connected to the door body case 210. The operation panel 270 is further provided with a display control device 272, and the display control device 272 comprises an indicating device for displaying the working state of the vacuum packaging device 300 and a control button for controlling the starting or stopping of the vacuum packaging device 300. The user can determine whether the storage bag can be drawn out according to the operating state of the vacuum packaging apparatus 300 displayed by the display control unit 272.

When the vacuum packaging device 300 is used by a user, the vacuum packaging device 300 is inserted into a storage bag to be packaged through the insertion opening 271 arranged on the operation panel 270, after the storage bag is inserted into place (the storage bag is abutted against the limiting ribs 322), the user triggers the starting button on the operation panel 270, the motor 341 is started to control the upper support 320 to descend until the upper support 320 moves in place (the vacuum-pumping area 301 is sealed), the vacuum pump 331 is controlled to start, the vacuum-pumping area 301 is vacuumized, the storage bag is vacuumized through the storage bag opening in the vacuum-pumping area 301, when the pressure sensor detects that the pressure value reaches the set negative pressure value, the vacuum pump 331 is controlled to stop starting the heating device 370 at the same time, the electric pressure relief valve is controlled to start after the heating device 370 works for a set time, the linear motor 341 is controlled to start and control the upper support 320 to ascend until the first opening cavity 311 and the second opening cavity 321 are separated, and the display control device 272 on the operation panel 270 indicates that the user can pump the storage bag to be vacuumized, and the storage bag packaging is completed.

Example 2

This embodiment 2 has substantially the same structure as that of embodiment 1, except that the lower support 310 is connected to the small insulating door 250. Specifically, in this embodiment, referring to fig. 21A and 21B, the lower support 310 is detachably connected to the small insulating door 250. The insulating small door 250 is formed of a first housing 251 and a second housing 252 having an open cavity structure and a heat insulating member provided between the first housing 251 and the second housing 252 as shown in fig. 22. The first housing 251 is in snap connection with the second housing 252, an extension arm 2511 is provided on the first housing 251 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 an end portion of the extension arm 2511, a second limiting portion matching with the first limiting portion is formed on a lower side of the lower support 310, and the first limiting portion and the second limiting portion cooperate to position the lower support 310 on the extension arm 2511. More specifically, the first limiting portion is a limiting plate, the limiting portion is a baffle formed at the bottom of the lower support 310 and extending downward, and the baffle is inserted into the inner side of the limiting plate to mount the lower support 310 on the extension arm 2511, so as to avoid the problem that the vacuum pumping area is not tightly sealed due to the movement of the lower support 310 in the horizontal direction.

In order to further ensure the heat insulation of the door body 200, to avoid cold leakage through the gap between the mounting hole 201 and the small heat-insulating door 250, a small door seal 253 is provided between the small heat-insulating door 250 and the door liner 220. Specifically, the first housing 251 is provided with a support 2512 at a position where the first housing 251 is engaged with the door liner 220, and the size of the support 2512 is larger than that of the mounting hole 201. The support 2512 is provided with a mounting groove surrounding the mounting hole 201, and the small door seal 253 is mounted in the mounting groove.

Specifically, in order to ensure that the small insulated door 250 is reliably fixed to the door body 200, a locking device 400 is provided between the small insulated door 250 and the door liner 220.

As shown in fig. 20, the locking device 400 includes a latch hook 440 hinged to the bottom of the small thermal insulation door 250, wherein a hinge shaft is disposed in the middle of the latch hook 440 and is used for connecting with the small thermal insulation door 250 and is connected to the small thermal insulation door 250, and further includes a locking slot formed on the door liner 220 and matched with the latch 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, the other leg abuts against the latch hook 440, and in an initial state, the torsion force of the reset torsion spring 450 is suitable for the latch hook 440 to be in a first position, so that the small thermal insulation door 250 is mounted on the door body.

Specifically, in order to improve the aesthetic property of the small door, a mounting groove is formed in the bottom of the small door, and the lock hook is mounted in the mounting groove. Fig. 21A and 21B show a process of detaching the small insulating door 250 and the lower support 310. When the thermal insulation small door 250 and the lower support 310 need to be disassembled, the locking hook is pulled to be far away from the locking groove, the locking device 400 is in an unlocking state, the thermal insulation small door 250 and the lower support 310 are pulled out, and the lower support 310 can be taken out from the thermal insulation small door 250 to clean the lower support 310. In this embodiment, the lower support 310 is detachably connected to the small heat insulation door 250, so that the cleaning of the lower support 310 is simpler and more convenient.

Example 3

The structure of this embodiment 2 is basically the same as that of embodiment 1, except that the connection between the lower support 310 and the thermal insulation door 250 and the door body 200 is made.

As shown in fig. 23A-23C, the lower support 310 and the thermal insulation small door 250 are independently disposed, a limiting portion for limiting the position of the lower support 310 in place is disposed at the lower side of the mounting hole 201, one end of the lower support 310 abuts against the limiting portion, and the other end abuts against the thermal insulation small door 250. The small insulated door 250 may be mounted on the door body 200 using the locking device 400 of embodiment 1 or embodiment 2.

Example 4

The structure of this embodiment 4 is basically the same as that of embodiment 1, except for the structure of the door 200 at the area where the vacuum packaging device 300 is located.

Specifically, in this embodiment, referring to fig. 22 and 23, in order to ensure the aesthetic appearance of the refrigerator door 200, the vacuum packaging device 300 is prevented from being exposed outside the door 200, the door 200 is provided with a sub-door plate 280 at a region where the vacuum packaging device 300 is located, the width of the sub-door plate 280 is the same as that of other regions of the door 200, the sub-door plate 280 is connected to the region by means of clamping or bonding, and the surface of the sub-door plate 280 is flush with the surface of the other regions of the door 200. The auxiliary door plate 280 is formed with a plug hole 281, and the lower surface of the plug hole 281 is flush with the upper surface of the first open cavity 311. When the user performs vacuum plastic packaging, the opening of the storage bag can be directly inserted from the insertion opening 281 of the auxiliary door plate 280 and directly extends to the upper surface of the first opening cavity 311, and when the upper support 320 moves down, the opening of the storage bag can be placed in the vacuum pumping area 301. The auxiliary door plate 280 is further provided with a display control device 282, and the display control device 282 comprises an indicating device for displaying the working state of the vacuum packaging device 300 and a control button for controlling the starting or stopping of the vacuum packaging device 300. The user can determine whether the storage bag can be drawn out according to the operating state of the vacuum packaging device 300 displayed by the indication device.

Example 5

The present embodiment 5 has substantially the same structure as the embodiment 1, except that the lower supporter 310 is mounted to the door body 200.

Specifically, as shown in fig. 26 to 29, in the present embodiment, the lower support 310 is detachably mounted to the door body 200 from the outside of the door body 200.

More specifically, the lower support 310 is detachably connected to the door body 200 by means of a push-and-spring. As shown in fig. 27 and 28, a second push-latch switch 380 is disposed on a connection surface between the lower support 310 and the door body 200, the second push-latch switch 380 includes a push-latch lock 381 and a latch 382, a groove in which the latch 382 is disposed is formed on an inner side surface of the lower support 310, and the push-latch lock 381 is fixed on an outer surface of the door body 200.

When the push latch 381 engages with the locker 382 as shown in fig. 29A to push the lower supporter 310 in the vertical direction of the door body 200, and when the lower supporter 310 is pushed again as shown in fig. 29B to release the locker 382, the lower supporter 310 is detachably moved out of the door body 200. The user can wash the lower supporter 310 alone, facilitating the user's operation.

Example 6

The present embodiment 6 has substantially the same structure as that of embodiment 5, except that the lower supporter 310 is mounted to the door body 200.

Specifically, in the present embodiment, as shown in fig. 30A and 30B, the lower support 310 is detachably mounted on the door body 200 from the outside of the door body 200.

More specifically, the lower support 310 is detachably connected to the door body 200 by means of a snap-fit connection. The lower support 310 and the door body 200 are respectively formed with a first clamping portion 391 and a second clamping portion 392 that are mutually matched, wherein the first clamping portion 391 is formed on the lower surface of the lower support 310, specifically, a bent hook, and the second clamping portion 392 is fixedly connected to the front surface of the door body 200. When the lower support 310 is disassembled, the lower support 310 is pulled outwards, the first clamping part 391 and the second clamping part 392 are elastically deformed to separate the two parts, and a user can independently clean the lower support 310, so that the operation of the user is convenient.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A refrigerator, comprising a storage chamber and a door for opening or closing the storage chamber, wherein the door is provided with a vacuum packaging device, characterized in that the vacuum packaging device comprises:

A lower support, wherein the upper side of the lower support is provided with a first opening cavity and a heat insulation pad in sequence along a direction from close to the door body to away from the door body;

An upper support, wherein a second opening cavity and a heating device are correspondingly provided on the lower side of the upper support along the direction from close to the door body to away from the door body, and the upper support can be moved in the direction close to or away from the lower support under the drive of the driving device; after the upper support moves into position in the direction close to the lower support, the first opening cavity is butted against the second opening cavity and sealed to form a vacuum zone, and the heating device is butted against the heat-insulating sealing strip to form a packaging zone;

A vacuum pumping component, which is connected to the vacuum pumping area through a pipeline and is used to vacuum or relieve the pressure in the vacuum pumping area;

The lower support is provided with a small heat preservation door on the inner side of the storage chamber, the door body is provided with a mounting hole communicating with the inside and the outside, and the lower support and the small heat preservation door are plugged into the mounting hole from the inner side of the door body;

A locking device is provided between the heat-insulating small door and the door body liner, and the locking device is used to lock or unlock the heat-insulating small door on the door body.

2. The refrigerator according to claim 1 is characterized in that: the heating device comprises a heating wire, a heat conducting plate is provided on the lower side of the heating wire, and when the first opening cavity is sealed and docked with the second opening cavity, the heat conducting plate contacts and cooperates with the heat insulating pad.

3. The refrigerator according to claim 2 is characterized in that: the heating wire extends along the length direction of the upper support and is bent upward on both sides of the upper support, and the two free ends of the heating wire extending to the upper side of the upper support are respectively connected to two wires led out through the wiring terminals through springs.

4. The refrigerator according to claim 3, characterized in that: the bending portion of the heating wire extending to the upper side of the upper support is covered by an insulating plate, and the insulating plate is formed into a bent plate structure and fixedly connected to the upper support by screws.

5. The refrigerator according to claim 1 is characterized in that: the lower support is provided with a first sealing groove on the outer periphery of the first opening cavity, and the upper support is provided with a second sealing groove on the outer periphery of the second opening cavity, and the first sealing groove is opposite to the second sealing groove and a sealing ring is provided inside.

6. The refrigerator according to claim 1, characterized in that a limiting portion is provided in the first opening cavity or the second opening cavity for limiting an insertion position of a storage bag inserted into the vacuum zone.

7. The refrigerator according to claim 6, characterized in that: the limiting portion is a limiting rib arranged in the first opening cavity or the second opening cavity, and the height of the limiting rib is greater than the depth of the first opening cavity or the second opening cavity.

8. The refrigerator according to claim 1, characterized in that the lower support is detachably mounted on the door body.

9. The refrigerator according to claim 1, characterized in that: the driving device comprises a motor and a transmission mechanism, the transmission mechanism is used to convert the rotational motion of the motor into linear motion, and the output end of the transmission mechanism is connected to the upper support.

10. The refrigerator according to claim 1 is characterized in that: the vacuum pump assembly comprises: a vacuum pump, the vacuum pump is connected to the vacuum zone through a pipeline; a pressure detection device and a pressure relief device are also provided on the pipeline, the pressure detection device is used to detect the pressure of the vacuum zone, and the pressure relief device is controlled to relieve the pressure of the vacuum zone; the pipeline also comprises a filtering protection device, which is used to filter foreign matter sucked into the pipeline.