CN112303977B

CN112303977B - A refrigerator

Info

Publication number: CN112303977B
Application number: CN201910673343.7A
Authority: CN
Inventors: 柳雪庆; 张鹏; 王美艳; 杨帅岭; 周晓东; 闫军旺; 罗光华; 张树栋
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2024-10-29
Anticipated expiration: 2039-07-24
Also published as: CN112303977A

Abstract

The invention discloses a refrigerator, which comprises a storage room, a door body for opening or closing the storage room, an installation cavity formed in the shell of the door body, a vacuum packaging device arranged in the installation cavity, and an operation panel covered outside the installation cavity, wherein an inserting port suitable for inserting a bag to be packaged is formed in the operation panel, a display control device is further arranged on the operation panel, and a bar counter door is arranged on the outside of the door body in the area where the vacuum packaging device is located; the bar counter door and the door body are provided with a door opening and closing detection device for detecting the opening and closing of the bar counter door at the corresponding position; and the control unit determines the opening or the disconnection of the electric signal of the display control device according to the door opening and closing detection device. The refrigerator can carry out vacuum packaging treatment on the storage bag filled with the food materials, so that the preservation range is enlarged; the electric signal of the display control device is controlled by the switch of the bar counter door, so that the energy conservation and the safety of the refrigerator are improved.

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; in addition, in the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions cannot be completed, the food cannot be oxidized, and the food 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. This way of preserving has the following limitations: 1. because the vacuumizing treatment is realized by a vacuum pump, the vacuum pump occupies part of the storage space of the refrigerating compartment; 2. the fresh-keeping mode needs to seal the drawer, otherwise, the drawer cannot be in a vacuum state, so that high requirements are put on the forming and assembling processes of the drawer; 3. the fresh-keeping mode can only keep the food materials in the drawer fresh, and cannot keep the food materials in other areas of the refrigerator fresh.

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.

In order to solve the technical problems, 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 outer side of the door body and is used for vacuumizing a bag to be packaged and packaging and sealing the bag, and the vacuum packaging device comprises: the upper side of the lower support is provided with a first open cavity; the lower side of the upper support is correspondingly provided with a second open cavity, and the lower support is detachably connected to the door body; the upper support can move towards or away from the lower support under the drive of the driving device; the upper support moves to the direction approaching to the lower support until the upper support is in butt joint with the lower support, and the first open cavity is in butt joint with the second open cavity and is sealed to form a vacuum pumping area; the outside of the door body is provided with a bar counter door at the position of the vacuum packaging device, and a door opening and closing detection device for detecting the opening and closing of the bar counter door is arranged at the position of the bar counter door corresponding to the door body; the door opening and closing detection device and the driving device are respectively and electrically connected with the control unit, and the control unit receives the detection signal of the door opening and closing detection device and then sends out a control signal so as to enable the driving device to be opened or disconnected by an electric signal.

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, so that the vacuum packaging device can be used for carrying out vacuum packaging treatment on the 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 vacuumizing and preserving food materials stored in various compartments of the refrigerator, so that the preserving range is enlarged; in addition, the lower support is detachably connected to the door body, a user can detach and clean the lower support, meanwhile, a bar counter door is arranged on the outer side of the door body in the position where the vacuum packaging device is located, and a door opening and closing detection device for detecting a switch of the bar counter door is arranged at the position corresponding to the bar counter door; and the control unit determines the opening or the disconnection of the electric signal of the driving device according to the door opening and closing detection device. The device can cut off power to the driving device under the condition of closing the bar counter door, has good energy conservation and avoids potential safety hazards.

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 an exploded view of the connection of the bar counter door to the door body according to embodiment 1 of the present invention;

FIG. 5 is a schematic diagram showing the cooperation between a bar counter door and a damping device according to embodiment 1 of the present invention;

FIG. 6 is an exploded view of another connection mode of the bar counter door and door body according to embodiment 1 of the present invention;

FIG. 7 is a side cross-sectional view of the vacuum packaging apparatus of the present invention;

FIG. 8 is a schematic view of the structure of the upper support of the vacuum packaging device in the forward and reverse directions;

FIG. 9 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. 10 is an exploded view of the upper support, drive and evacuation module of the vacuum packaging apparatus of the present invention;

FIG. 11 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. 12 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. 13 is an exploded view of the upper support and heating device and seal ring of the present invention;

FIG. 14 is a partial cross-sectional view of the connection of the upper support and the heating device of the present invention;

FIG. 15 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. 16 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. 17A is a schematic view of the structure of the lower support and the thermal insulation door and door in the locked state in embodiment 1 of the present invention;

FIG. 17B is a schematic diagram of the structure of the lower support and the thermal insulation door and door in the unlocking state in embodiment 1 of the present invention;

FIG. 17C 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. 18 is a schematic view showing the structure of the insulating door and the lower support in the assembled state in accordance with embodiment 1 of the present invention;

FIG. 19 is an exploded view of the insulating door, lower mount and latch hook assembly of embodiment 1 of the present invention;

Fig. 20 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. 21 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. 22 is a perspective view of the lower shackle in embodiment 1;

Fig. 23 is a schematic diagram showing the forward and reverse structures of the upper latch hook in embodiment 1 of the present invention;

FIG. 24A 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 2 of the present invention;

FIG. 24B 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. 25 is an exploded view of the insulating door, lower mount and latch hook assembly of embodiment 2 of the present invention;

FIG. 26A 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. 26B is a schematic structural diagram of the thermal insulation small door and the door body in the unlocked state in embodiment 3 of the present invention;

FIG. 26C 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. 27 is a schematic view showing the structure of a refrigerator according to embodiment 4 of the present invention;

FIG. 28 is an exploded view of the refrigeration door of example 4 of the present invention;

Fig. 29 is a schematic view of a refrigerator according to embodiment 5 of the present invention;

FIG. 30 is an exploded view of the refrigeration door of example 5 of the present invention;

FIG. 31 is an exploded view of the lower support in example 5 of the present invention;

fig. 32A is a schematic structural view of the lower support and the door body in the locked state in embodiment 5 of the present invention;

FIG. 32B is a schematic view showing the structure of the lower support in the embodiment 5 of the invention in a state of being removed from the door body;

FIG. 33A 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. 33B 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, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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 a refrigerator of the present invention; referring to fig. 1, a refrigerator 1 of the present embodiment has an approximately rectangular parallelepiped shape. The appearance of the refrigerator 1 is defined 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 insulation layer positioned between the door body case 210, the door body case 220, the upper end cap 230, the lower end cap 240; typically, the insulation 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 7, the door body 200 of the refrigerator is provided with a vacuum packaging device 300, and the vacuum packaging device 300 is used for vacuumizing and plastic packaging the storage bag; the vacuum packaging apparatus 300 may be provided to either the refrigeration door 200A or the refrigeration door 200B, and is preferably provided to the refrigeration door 200B in order to conform to the use habit of the user, since the refrigeration door 200B is located on the upper side.

Referring to fig. 7 to 23, in an embodiment of the vacuum packaging apparatus 300, in this embodiment, as shown in fig. 7, the vacuum packaging apparatus 300 includes: a lower support 310, the lower support 310 being provided with a first open cavity 311; the 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 the 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 the 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 sealing performance of the vacuum pumping section 301, as shown in fig. 7, a sealing portion for sealing the vacuum pumping section 301 is provided on the surface of the lower supporter 310 opposite to the upper supporter 320. Specifically, the lower support 310 is provided with a first sealing groove 313 at the outer periphery of the first open cavity 311, the upper support 320 is provided with a second sealing groove 323 at 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. 8, a limiting portion is disposed in the first opening cavity 311 or the second opening cavity 321, for limiting an insertion position of the storage bag inserted in the vacuum pumping area 301, so as 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, and the height of the limiting rib 322 is greater than the depth of the first opening cavity 311 or the second opening cavity 321; the length of the limit rib 322 is slightly less than the length of the first opening 311 or the second opening 321. When a user inserts the storage bag into the vacuum pumping area 301, the limiting ribs 322 can prevent the storage bag from being inserted inwards continuously; in other embodiments, the vacuum pumping area 301 may further be provided with an in-place detection device, specifically, a microwave sensor or an infrared sensor may be used to detect whether a storage bag inserted into the vacuum pumping area 301 is in place, so as to send a signal to the controller about whether the storage bag is in place, and 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 apparatus 300 further comprises a vacuum pumping assembly 330, as shown in fig. 9 and 10, wherein the vacuum pumping assembly 330 comprises a vacuum pump 331 in communication with the vacuum pumping area 301 through a pipeline 335; the pipeline 335 is further provided with a pressure detecting device 332 and a pressure releasing device 333, wherein the pressure detecting device 332 is specifically a pressure sensor, and is configured to detect the pressure in the vacuum pumping area 301; the pressure relief device 333 is specifically an electric pressure relief valve, and when the electric pressure relief valve is opened, the pressure of the vacuum pumping area 301 is relieved. 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 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. 11, the filtering protection device is specifically a filtering container 334 connected in series to the pipeline 335, an inlet and an outlet are provided at an upper end of the filtering container 334, the inlet is communicated with the vacuum pumping area 301 through a pipeline, and the outlet is communicated with the vacuum pump 331 through a pipeline; foreign matters in the vacuum pumping area 301 enter the filtering container 334 through the pipe 335 and remain in 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. 12, 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 arranged in parallel between the pipelines 335 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 when the connection hole is single, or may be connected with the pipeline 335 by arranging two or more connection holes, and then connected with the main pipe by a tee joint or a multi-way connector; wherein the pressure sensor and the electronic pressure relief valve are arranged on the main pipe.

As shown in fig. 7, 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 treatment on the storage bag after the vacuum pumping is finished, and a heat insulation pad 360 and a heating device 370 which are oppositely arranged are arranged in the packaging area 302; specifically, the heating device 370 is installed in a groove on the lower surface of the upper supporter 320; the heat insulation pad 360 is installed in a groove on the upper surface of the lower support 310 of the upper support 320; after the upper support 320 is moved to the evacuated region 301 forming a seal with the lower support 310, the insulation pad 360 within the encapsulation region 302 rests 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.

More specifically, as shown in fig. 13 and 14, 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. Further, the two free ends of the heating wire 371 are respectively connected with two wires led out through a connecting terminal 374 through springs 375; the heating wire 371 can be always in a tensioning state by arranging the spring 375, so that the flatness of the heating wire 371 is higher, and the heat conducting plate 373 positioned on the lower side of the heating wire 371 is tightly contacted with the storage bag; the problem that individual positions are not in contact with the solid plastic package and cannot be caused by uneven heating wires 371 is avoided.

In the above vacuum-pumping plastic package device, the driving device 340 may be an electric driving device or an air pressure driving device; the pneumatic driving device occupies a large space, so in this embodiment, the driving device 340 is an electric driving device. Specifically, as shown in fig. 10, 15 and 16, 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 motor output shaft; a second gear 343 engaged with the first gear 342; a third gear 344 fixedly connected to the second gear 343, and an output rack 345 engaged with the third gear 344, wherein, the lower side of the output rack 345 is provided with a pin hole, 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. 10, 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.

As shown in fig. 15, in the initial position, the upper supporter 320 is located at the highest position; in the pressing stage, as shown in fig. 16, the driving device 340 drives the upper support 320 to move downward, in order to ensure that the lower support 310 is tightly matched with the upper support 320, a set rotation stroke of the motor 341 is generally used as an in-place judging signal, so that after the upper support 320 moves downward to be in contact with the lower support 310 due to the arrangement of the elastic body 348 between the output rack 345 and the guide groove 3471, the output rack 345 can continue to move downward for a certain distance, so that the elastic body 348 is compressed, the motor 341 is prevented from blocking rotation, 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.

To precisely control the movement displacement of the upper supporter 320 and thus determine whether the upper supporter 320 is moved in place so that the vacuum-pumping area 301 forms a sealed space; in this embodiment, the motor 341 is a stepper motor 341, and the rotation stroke of the stepper motor 341 is detected to determine whether the upper support 320 is moved into position. In another embodiment, a micro switch is provided on the lower support 310 or the upper support 320; after the upper support 320 moves into place, 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.

The driving device 340 may be configured as one, and the output gear is located in a middle area of the upper support 320, which is easy to cause the edge area of the upper support 320 to be not tightly engaged with the lower support 310, so that the vacuum pumping area 301 leaks air; accordingly, in order to provide sealing of the vacuum pumping area 301, the driving devices 340 are disposed at both sides of the upper supporter 320, respectively. Accordingly, one of the connection plates 347 is provided, and the connection plate 347 is provided with two of the guide grooves 3471; two output racks 345 extend into the guide slots 3471, respectively.

Specifically, as shown in fig. 9 and 10, 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 property 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 holes 324 on the upper support 320 and then mounted on the mounting seat 305, and after forming an assembly, the assembly is integrally mounted in the mounting cavity 211 through screws penetrating through lugs on two sides of the mounting seat 305, modular assembly is realized by all parts, all parts are not exposed on the outer surface, and the device has better integrity.

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 is accumulated in the first open cavity 311 of the lower support 310; accordingly, the lower supporter 310 is detachably installed with respect to the door body 200 for the convenience of a user to clean food remnants in the lower supporter 310.

In this embodiment, as shown in fig. 17A to 17C, the lower support 310 may be detachably mounted on the door body 200 from the inner side (i.e. the side with the liner) 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. 17C, 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. 18, the lower support 310 is integrally formed with the thermal door 250; as shown in fig. 19 and 20, the lower support 310 and the insulating small door 250 are formed of a first housing 251 and a second housing 252 having an open cavity structure, and a heat insulator provided between the first housing 251 and the second housing 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. 19 and 20 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. 17A to 17C, 18 and 19, the locking device 400 includes: the locking hook assembly is arranged on the small heat-insulation door 250, and the locking groove 221 is arranged on the inner container 220 of the door body, the locking hook assembly comprises a locking hook penetrating through the small heat-insulation door 250, the locking hook can be switched between a first position and a second position, the locking hook can be matched with the locking groove 221 to lock the small heat-insulation door 250 when in the first position, and the locking hook is separated from the locking groove 221 when in the second position to unlock the small heat-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. 18-23, the latch hook assembly includes upper latch hook 420 and lower latch hook 410, and return spring 430. As shown in fig. 22, 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. 23, 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. 18, 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 the 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 latch groove 221, and at the same time, the connecting part pushes the upper latch hook 420 upward to move, the upper latch hook 420 is separated from the upper latch 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 liner 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. As shown in fig. 4 to 6, the lower end of the bar door 260 is hinged with the door body 200 through a damping device 280, which can ensure that the bar door 260 is slowly turned over to a position perpendicular to the surface of the door body housing 210; the upper end of the bar door 260 is connected to the door body housing 210 through a first push-latch 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 damping device 280 includes a damper body 280A and a rotation shaft 280B rotatably connected to the damper body 280A, wherein the rotation shaft 280B includes an extension section protruding to the outside of the damper body.

The bar counter door 260 is provided with a mounting support 261, the mounting support 261 is provided with a mounting hole, the damper body 280A is non-rotatably connected in the mounting hole, and the extension section of the rotating shaft is fixedly connected with the door body 200. More specifically, an axially extending anti-rotation protrusion is disposed on the circumferential surface of the damper body 280A, an anti-rotation groove matched with the anti-rotation protrusion is correspondingly disposed on the mounting hole, and the damper body 280A is non-rotatably connected with the mounting support 261 after being inserted into the mounting hole.

As an embodiment, as shown in fig. 4 and 5, the extension section is fixedly connected with the door body 200 through a connection assembly, the connection assembly includes a shaft sleeve 281 and a connection plate 282, one end of the shaft sleeve 281 is connected with the extension section in a non-rotating manner, and the other end is connected with the connection plate 282 in a non-rotating manner; the other end of the connecting plate 282 is connected to the door body through threads; the shaft sleeve is rotatably connected in the mounting hole. The connection strength between the damping device and the door body can be increased by arranging the shaft sleeve 281 and the connecting plate 282, so that the situation that the rotation shaft 280B of the damping device is directly connected to the door body and the strength is insufficient to cause the change of the position of the bar counter door is avoided.

The connection mode of the end of the shaft sleeve 281 and the extension section that do not rotate relatively is not unique, specifically, as shown in fig. 5, the extension section is formed into a flat cylindrical shape, a first connection hole corresponding to the extension section is provided on the shaft sleeve 281, and the extension section is inserted into the first connection hole and fixedly connected with the extension section through a pin shaft.

The end of the shaft sleeve 281, which is matched with the connecting plate 282, is formed with a second connecting hole, and the connecting plate is inserted into the inner side of the second connecting hole.

As another embodiment, as shown in fig. 6, the extension of the rotation shaft 280B extends out of the outer surface of the mounting support and is directly connected with the door body through a screw.

As shown in fig. 3, the bar counter door 260 is provided with a door opening and closing detecting means 290 for detecting the opening and closing of the bar counter door 260 at a position corresponding to the door body 200; the control unit determines the opening or closing of the electric signal of the driving device 340 according to the detection signal of the door opening/closing detection device. That is, when the door opening/closing detecting means 290 detects that the bar counter door 260 is in an opened state, the electric signal of the driving means 340 is turned on, and the user can normally perform the vacuum packaging operation; when the door opening/closing detecting means 290 detects that the bar door 260 is in the closed state, the electric signal of the driving means 340 is turned off, so that the whole device is in a safe and energy-saving state. Whether the user uses the equipment or not is identified through the switch of the bar counter door 260, the power on and the power off of the equipment are controlled, the energy conservation and the safety guarantee of the equipment are realized, and the convenience and the safety of the use of the user are improved.

Specifically, the bar counter door switch detecting device includes a magnetic switch 290, the magnetic switch 290 includes a switch body 291 mounted on the door body side, and a magnetic attraction member 292 mounted at a corresponding position of the bar counter door 260, and the magnetic switch 290 is located on the non-hinge side of the bar counter door. When the bar door 260 is in a closed state, the magnet 292 in the bar door is close to the switch body 291, the control system sends a power-off signal to the driving device 340, and at this time, the vacuum packaging device is in an energy-saving and safe state due to the power-off of the driving device 340; when the user needs to perform the vacuum pumping, the bar door 260 is opened, the magnet 292 in the bar door 260 is far away from the switch body 291 along with the bar door 260, at this time, the driving device 340 is sent an energizing signal, at this time, the driving device 340 is energized, and the user performs the vacuum pumping operation using the vacuum packaging device 300.

As shown in fig. 2, the inside of the bar counter door 260 further includes an operation panel 270 covering the outside of 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 includes an indicating device for displaying the working state of the vacuum packaging device 300; and a control button for controlling the start or stop of the vacuum packing 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 storage bag to be packaged is inserted through the insertion opening 271 arranged on the operation panel 270, after the storage bag is inserted in place (the storage bag is abutted against the limit rib 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) and then controls the vacuum pump 331 to start, the vacuum pumping area 301 is vacuumized, and the storage bag is vacuumized through the opening of the storage bag positioned in the vacuum pumping area 301; when the pressure sensor detects that the pressure value reaches a set negative pressure value, the vacuum pump 331 is controlled to stop and simultaneously the heating device 370 is started to work, and after the heating device 370 works for a set time, the electric pressure relief valve is controlled to start; then controlling the linear motor 341 to start to control the upper support 320 to ascend until the first opening cavity 311 and the second opening cavity 321 are separated; the display control device 272 on the operation panel 270 indicates that the user can withdraw the storage bag, and the vacuum packaging of the storage bag 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. 24A and 24B, the lower support 310 is detachably connected to the small insulating door 250. As shown in fig. 25, the insulating small door 250 is 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, 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. 25, the locking device 400 includes: the middle part of the locking hook 440 is provided with a hinge shaft used for connecting with the small heat-preserving door 250 and connected with the small heat-preserving door 250; also includes a locking groove formed on the door liner 220 and engaged with the locking hook; and a reset torsion spring 450 sleeved on the hinge shaft; one supporting leg of the reset torsion spring is propped against the small heat-preserving door 250, and the other supporting leg is propped against the locking hook 440; in the initial state, the torsion of the reset torsion spring 450 is suitable for the latch hook 440 to be in the first position, so that the thermal insulation small door 250 can be 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. 24A and 24B show a process of detaching the insulating small door 250 and the lower supporter 310. When the thermal insulation small door 250 and the lower support 310 are mounted on the door body 200, the latch hook is matched with the locking groove, so that the thermal insulation small door 250 is locked; when the heat-insulating small door 250 and the lower support 310 need to be disassembled, the lock hook is pulled to be far away from the locking groove, the locking device 400 is in an unlocking state, the heat-insulating small door 250 and the lower support 310 are pulled out, and the lower support 310 can be cleaned by taking the lower support 310 out of the heat-insulating small door 250. 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. 26A-26C, 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. 27 and 28, 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 start or stop of the vacuum packing 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. 29 to 31, 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. 30 and 31, a second push-latch switch 380 is disposed on a connection surface between the lower support 310 and the door body 200, and the second push-latch switch 380 includes a push-latch lock 381 and a latch 382; the inner side of the lower support 310 is formed with a groove provided with the lock 382, and the push latch 381 is fixed on the outer surface of the door body 200.

As shown in fig. 32A, when the lower support 310 is pushed in the vertical direction of the door body 200, the push latch 381 is engaged with the latch 382, and the lower support 310 is mounted on the door body 200; as shown in fig. 32B, when the lower supporter 310 is pushed again, the push latch 381 releases the locker 382, so that the lower supporter 310 can be removed from 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. 33A and 33B, 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. The lower support 310 moves inwards in the direction approaching to the door body 200 until the first clamping part 391 and the second clamping part 392 cooperate to realize the installation of the lower support 310; when the lower support 310 is detached, 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 facilitated.

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 comprises a door shell, a door body and an insulating layer between the door shell and the door body;

A cavity is formed in the door body, and a vacuum packaging device is arranged in the cavity. The vacuum packaging device is used to perform vacuum processing on the packaging bag and seal it. The vacuum packaging device is 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;

An upper support, wherein a second opening cavity is correspondingly provided on the lower side of the upper support, wherein the lower support is detachably connected to the door body, and the upper support can be moved toward or away from the lower support under the driving of a driving device, and the upper support moves toward the direction approaching the lower support until the upper support and the lower support are docked, and the first opening cavity and the second opening cavity are docked and sealed to form a vacuum zone;

The vacuum packaging device also includes a packaging area located outside the vacuuming area, the packaging area is used to perform plastic sealing on the packaging bag after the vacuuming is completed, and a heat insulation pad and a heating device are arranged opposite to each other in the packaging area, the heating device is installed in the groove on the lower surface of the upper support, and the heat insulation pad is installed in the groove on the upper surface of the lower support;

The outer side of the door body is provided with a bar door at the area where the vacuum packaging device is located, and the bar door is used to open or close the front opening of the cavity. A door opening and closing detection device for detecting the opening and closing of the bar door is provided at the position corresponding to the bar door and the door body;

The door opening and closing detection device and the driving device are electrically connected to a control unit respectively, and the control unit sends a control signal after receiving the detection signal of the door opening and closing detection device to turn on or off the electrical signal of the driving device;

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

The heat-insulating door is formed by a first shell body and a second shell body having an open cavity structure and a heat-insulating member arranged between the first shell body and the second shell body;

The first shell is provided with an extension arm in a direction away from the second shell, and the lower support is formed on the extension arm;

A locking device is provided between the thermal insulation small door and the door body, and the locking device is used to lock or unlock the thermal insulation small door on the door body;

The locking device comprises a lock hook assembly arranged on the thermal insulation door and a locking groove arranged on the inner liner of the door body;

The heat-insulating small door is integrally formed with the lower support.

2. The refrigerator according to claim 1 is characterized in that: the bar door switch detection device includes a magnetic switch, the magnetic switch includes a switch body installed on the door body side, and a magnetic attraction part installed at a corresponding position of the bar door, and the magnetic switch is located on the non-hinged side of the bar door.

3. The refrigerator according to claim 1 is characterized in that: the vacuum packaging device also includes a vacuum pump component, and the vacuum pump component includes a vacuum pump connected to the vacuum zone through a pipeline; the pipeline is also provided with a pressure detection device for detecting the pressure of the vacuum zone and a pressure relief device for controlling the pressure relief of the vacuum zone.

4. 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.

5. The refrigerator according to claim 1, characterized in that the lower end of the bar door is hinged to the door body through a damping device, and the upper end is connected to the door body through a locking device.