CN113375390A

CN113375390A - A kind of refrigerator

Info

Publication number: CN113375390A
Application number: CN202010158762.XA
Authority: CN
Inventors: 杨春; 许付松; 周晓东
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2021-09-10

Abstract

The invention discloses a refrigerator, and relates to the technical field of preservation. The food that can directly encapsulate the needs vacuum fresh-keeping on the refrigerator need not be with the help of other equipment, and the operation is more convenient, and does not occupy the space of low temperature storeroom. The refrigerator comprises a vacuum packaging device and a vacuum insulation board, wherein the vacuum packaging device is positioned in an installation cavity formed by sinking a door shell towards a door liner, the vacuum insulation board is positioned on one side, facing a low-temperature storage chamber, of the rear wall of the installation cavity, a decoration cover covers the vacuum insulation board, the decoration cover is detachably connected with the door liner, the vacuum packaging device comprises an upper support, a lower support, a vacuum pump assembly and a plastic package assembly, the upper support can move towards or away from the lower support, a vacuumizing area is formed when the upper support is in butt joint with the lower support, and the vacuum pump assembly is used for vacuumizing the vacuumizing area; the plastic package assembly is used for carrying out plastic package on the storage bag after vacuumizing is finished. The invention can be used for improving the performance of the refrigerator.

Description

A kind of refrigerator

Technical Field

The invention relates to the technical field of preservation, in particular to a refrigerator.

Background

In the preservation technology of the refrigerator, oxygen is closely related to the oxidation and respiration of food in the refrigerator. The slower the respiration of the food, the lower its oxidation and the longer the preservation time. The oxygen content in the storage space is reduced, and the fresh-keeping effect on food is obvious.

The vacuum preservation technology mainly adopts an air pressure control mode, namely, the food material cooling speed is accelerated through a vacuumizing mode, and meanwhile, the food material is inhibited from being decayed by microorganisms, so that the purpose of prolonging the preservation period is achieved. In the prior art, vacuum bags are generally adopted for fresh keeping. The vacuum bag is adopted for fresh keeping, a vacuumizing sealing machine needs to be additionally arranged, when food is stored each time, vacuumizing and sealing are carried out on the vacuumizing sealing machine firstly, then the food is placed into a refrigerator, the method needs to be operated at other places except the refrigerator, other equipment except the refrigerator needs to be used, and the operation is very inconvenient.

Disclosure of Invention

The embodiment of the invention provides a refrigerator, which can be used for directly packaging food needing vacuum preservation on the refrigerator without other equipment, is more convenient and faster to operate and does not occupy the space of a low-temperature storage room.

To achieve the above object, an embodiment of the present invention provides a refrigerator including: a low temperature storage chamber forming a low temperature storage space; the door body is used for opening or closing the low-temperature storage chamber; the door body comprises a door inner container and a door outer shell; the door shell to the sunken installation cavity that forms of door inner bag direction, the refrigerator still includes: a vacuum packaging device disposed within the mounting cavity; the vacuum packaging apparatus includes: the upper support and the lower support correspond to each other up and down, and open cavities are formed in the opposite surfaces of the upper support and/or the lower support; the upper support can move towards or away from the lower support; when the upper support is in butt joint with the lower support, the opening cavity is sealed by a sealing part to form a vacuum-pumping area; the vacuum pump assembly is communicated with the vacuumizing area and is used for vacuumizing or decompressing the vacuumizing area; the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished; and a vacuum insulation plate is arranged on one side of the rear wall of the mounting cavity facing the low-temperature storage chamber, and a foaming layer is arranged between the door outer shell and the rest part of the door inner container.

According to the refrigerator provided by the embodiment of the invention, the door shell is sunken towards the direction of the door inner container to form an installation cavity, a vacuum packaging device is arranged in the installation cavity, the vacuum packaging device comprises an upper support, a lower support, a vacuum pump assembly and a plastic packaging assembly, the upper support and the lower support are arranged up and down correspondingly, and an opening cavity is formed in the opposite surfaces of the upper support and/or the lower support; the upper support can move towards or away from the lower support; when the upper support is butted with the lower support, the opening cavity is sealed by the sealing part to form a vacuum-pumping area; the vacuum pump assembly is communicated with the vacuumizing area and is used for vacuumizing or decompressing the vacuumizing area; the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished, and the embodiment of the invention can directly package food needing vacuum preservation on a refrigerator without other equipment, so that the operation is more convenient and faster; according to the embodiment of the invention, the vacuum heat insulation plate is arranged on one side, facing the low-temperature storage chamber, of the rear wall of the installation cavity, the foaming layer is arranged between the door shell and the rest part of the door liner, and the heat conductivity of the vacuum heat insulation plate is far lower than that of the foaming layer, so that the thickness of the required vacuum heat insulation plate is far smaller than that of the foaming layer under the condition of the same heat conductivity, and the thickness of the door body adopting the vacuum heat insulation plate is thinner than that of the door body adopting the foaming layer, so that the space is saved; the structure can ensure that the door body provided with the vacuum packaging device part does not protrude towards the low-temperature storage chamber and does not occupy the space of the low-temperature storage chamber, and the foaming layers are adopted by the door outer shell and the rest parts of the door inner container to save the cost. In addition, the vacuum insulation panel is covered with the decorative cover, the decorative cover is detachably connected with the door liner, and the vacuum insulation panel is located outside the door liner, so that the vacuum insulation panel is impacted to shift when foaming can be avoided, the heat insulation effect is influenced, the performance of the vacuum insulation panel can be replaced when the performance of the vacuum insulation panel cannot meet the requirement, and energy waste caused by reduction of the heat insulation performance of the vacuum insulation panel is prevented.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic perspective view of a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic perspective view of a refrigeration door body in a refrigerator according to an embodiment of the present invention (with the vacuum insulation panel removed);

FIG. 3 is a cross-sectional view of a refrigeration door in the refrigerator in accordance with an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at I;

FIG. 5 is a side sectional view of a vacuum packing apparatus in a refrigerator according to an embodiment of the present invention;

FIG. 6 is a schematic assembly diagram of an upper support, a lower support, a driving device and a vacuum pumping assembly in a vacuum packaging device of a refrigerator according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of an upper support, a driving device and a vacuum pumping assembly in a vacuum packaging device of a refrigerator according to an embodiment of the present invention;

FIG. 8 is an exploded view of the upper support, the driving device and the vacuum pumping assembly of the vacuum packaging device in the refrigerator according to the embodiment of the present invention;

FIG. 9 is a schematic perspective view of an upper support of a refrigerator according to an embodiment of the present invention;

FIG. 10 is an exploded view of an upper bracket and a heating device in a refrigerator according to an embodiment of the present invention;

FIG. 11 is a partial sectional view of a connection between an upper supporter and a heating apparatus in a refrigerator according to an embodiment of the present invention;

FIG. 12 is a schematic view showing the connection relationship between the upper bracket and the driving device in the initial position of the refrigerator according to the embodiment of the present invention;

FIG. 13 is a schematic view showing the connection between the upper support and the driving device in the lowered position of the refrigerator according to the embodiment of the present invention;

FIG. 14 is a schematic structural view of a refrigerator according to an embodiment of the present invention, in which a lower support and a refrigeration door are locked;

fig. 15 is a schematic structural view of a refrigerator according to an embodiment of the present invention in a state where a lower holder is detached from a refrigeration door body.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

Referring to fig. 1, the refrigerator according to the embodiment of the present invention has an approximately rectangular parallelepiped shape. The external appearance of the refrigerator is defined by a low temperature storage chamber 100 defining a storage space and a plurality of door bodies 200 provided in the low temperature storage chamber 100, wherein, referring to fig. 2, the door bodies 200 include a door outer case 210 located at an outer side of the low temperature storage chamber 100, a door inner case 220 located at an inner side of the low temperature storage chamber 100, an upper end cover 230, a lower end cover 240, and an insulation layer located between the door outer case 210, the door inner case 220, the upper end cover 230, and the lower end cover 240.

Referring to fig. 1, a low temperature storage chamber 100 is a cabinet having an opening, and the low temperature storage chamber 100 is vertically partitioned into a lower freezing chamber 100A and an upper refrigerating chamber 100B. Each of the partitioned spaces may have an independent storage space. In detail, the freezing compartment 100A is located at a lower side of the low temperature storage compartment 100 and may be selectively covered by a drawer type freezing compartment door 200A. The space above the freezing chamber 100A is partitioned into left and right sides to form a refrigerating chamber 100B, respectively, and the refrigerating chamber 100B may be selectively opened or closed by a refrigerating chamber door body 200B pivotably mounted on the refrigerating chamber 100B.

Referring to fig. 3 and 4, the door casing 210 of the refrigerator according to the embodiment of the present invention is recessed toward the door inner container 220 to form a mounting cavity 213; referring to fig. 4 and 5, a vacuum packing device 300 is provided in the installation chamber 213, and a vacuum insulation panel 400 is provided at a rear wall of the installation chamber on a side facing the low temperature storage chamber. Referring to fig. 1, the vacuum sealing apparatus 300 may be installed on the freezing door 200A or the refrigerating door 200B, and since the refrigerating door 200B is located at the upper side, it is generally preferable to be installed on the refrigerating door 200B in order to meet the usage habit of the user.

Referring to fig. 5 and 6, the vacuum packaging apparatus 300 includes an upper support 320, a lower support 310, a vacuum pump assembly 330, and a mold assembly. The upper support 320 corresponds to the lower support 310 up and down, and an opening cavity is formed in the opposite surface of the upper support 320 and/or the lower support 310; the upper support 320 can move towards or away from the lower support 310, and when the upper support 320 is in butt joint with the lower support 310, the open cavity is sealed by the sealing part to form a vacuum-pumping area 301; the vacuum pump assembly 330 is communicated with the vacuum-pumping region 301 and is used for vacuumizing or decompressing the vacuum-pumping region 301; the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished.

In the refrigerator provided by the embodiment of the invention, the door shell 210 is sunken towards the door inner container 220 to form the mounting cavity 213, the vacuum packaging device 300 is arranged in the mounting cavity 213, the vacuum packaging device 300 comprises an upper support 320, a lower support 310, a vacuum pump assembly 330 and a plastic package assembly, the upper support 320 and the lower support 310 are arranged up and down correspondingly, and open cavities are formed in the opposite surfaces of the upper support 320 and/or the lower support 310; the upper support 320 can move toward or away from the lower support 310; when the upper support 320 is butted with the lower support 310, the open cavity is sealed by the sealing part to form a vacuum-pumping area 301; the vacuum pump assembly 330 is communicated with the vacuum-pumping region 301 and is used for vacuumizing or decompressing the vacuum-pumping region 301; the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished, and the embodiment of the invention can directly package food needing vacuum preservation on a refrigerator without other equipment, so that the operation is more convenient and faster; in the embodiment of the invention, the vacuum insulation panel 400 is arranged on one side of the rear wall of the installation cavity 213 facing the low-temperature storage chamber, the foaming layer is arranged between the door shell 210 and the rest part of the door liner 220, and the thermal conductivity of the vacuum insulation panel 400 is far lower than that of the foaming layer, so that the required thickness of the vacuum insulation panel 400 is far smaller than that of the foaming layer under the condition of the same thermal conductivity, and the thickness of the door body adopting the vacuum insulation panel 400 is thinner than that of the door body adopting the foaming layer, the structure can ensure that the door body provided with the vacuum packaging device 300 part does not protrude towards the low-temperature storage chamber 100, and the space of the low-temperature storage chamber 100 is not occupied, in addition, the vacuum insulation panel 400 is covered with the decorative cover 700, the decorative cover 700 is detachably connected with the door liner 210, and the vacuum insulation panel 400 is positioned outside the door liner, thereby affecting the heat insulation effect, and can be replaced when the performance of the vacuum heat insulation panel 400 can not meet the requirements, and preventing the energy waste caused by the reduction of the heat insulation performance of the vacuum heat insulation panel 400.

There are various possible positional relationships between the decorative cover 700 and the door inner container 220, for example, in the thickness direction of the door body, the extending surface of the decorative cover 700 may be higher than the partial wall surface of the door inner container 220 closest to the low-temperature storage chamber, and this structure has a disadvantage that the part of the decorative cover 700 protruding out of the door inner container 220 occupies the storage space of the low-temperature storage chamber; as another example, referring to fig. 4, in the thickness direction of the door body, the extension surface of the decorative cover 700 is flush with the wall surface of the portion of the door liner 220 closest to the low-temperature storage chamber; or, the extension surface of the decorative cover 700 is lower than the partial wall surface of the door liner 220 closest to the low temperature storage room; this structure has a disadvantage in that the decorative cover 700 does not occupy the storage space of the low temperature storage chamber, and thus, a structure in which the decorative cover 700 is flush with or lower than a wall surface of a portion of the door inner 220 closest to the low temperature storage chamber in the thickness direction of the door body is preferable.

Referring to fig. 4, since the vacuum insulation panel 400 has a certain hardness, there may be gaps between the vacuum insulation panel 400 and the bottom wall surface of the installation cavity 213 and between the vacuum insulation panel 400 and the decorative cover 700 during installation, and air inside and outside the refrigerator exchanges heat through the gaps, thereby affecting the heat insulation of the refrigerator, a first sealing member 500 may be provided between the vacuum insulation panel 400 and the installation cavity 213, a second packing 600 is provided between the vacuum insulation panel 400 and the decorative cover 700, and when there is a gap between the vacuum insulation panel 400 and the rear wall surface of the installation cavity 213, the first sealing member 500 may seal a gap between the vacuum insulation panel 400 and the rear wall surface of the installation cavity 213, and the second sealing member 600 may seal a gap between the decorative cover 700 and the vacuum insulation panel 400, so as to reduce the effect of heat exchange between the inside and the outside of the refrigerator, and further improve the heat insulation performance of the refrigerator.

Specifically, the EPDM foam layer has the characteristics of ultra-thin volume, elasticity, good thermal insulation performance, and the like, so the EPDM foam can be selected for both the first sealing member 500 and the second sealing member 600.

The vacuum insulation panel 400 in the refrigerator provided by the embodiment of the invention can be an aerogel vacuum insulation panel, the aerogel vacuum insulation panel adopts a nano-pore super insulation material (nano aerogel and nano fumed silica) as a core material, the heat conductivity coefficient of the aerogel vacuum insulation panel 400 can reach below 0.006W/(m.K), and the aerogel vacuum insulation panel 400 is used as an insulation layer, so that the insulation performance of the insulation layer is better on the premise of a certain thickness compared with a common vacuum insulation panel.

Referring to fig. 6 and 7, a vacuum pump assembly 330 in the refrigerator according to the embodiment of the present invention includes a vacuum pump 331, a pressure detecting device 332, and a pressure relief device 333; the vacuum pump 331 is communicated with the vacuum-pumping region 301 through a pipeline 335, and a pressure detection device 332 and a pressure relief device 333 are both arranged on the pipeline 335, wherein the pressure detection device 332 is specifically a pressure sensor for detecting the pressure of the vacuum-pumping region 301; the pressure relief device 333 is an electric pressure relief valve for relieving pressure in the vacuum-pumping region 301. Before using, set value according to the vacuum degree of evacuation district 301 sets up pressure sensor, when needing to carry out the evacuation to the storing bag, open vacuum pump 331, when pressure detection device 332 detected evacuation district 301's pressure and reached and set for the negative pressure value, control vacuum pump 331 stops, vacuum pump 331 can open or stop according to pressure sensor's detected value, the evacuation effect has been guaranteed, after evacuation and encapsulation operation are accomplished, can automatic control evacuation district 301 carry out the pressure release through opening electronic relief valve, convenience of customers takes out the storing bag.

In order to prevent the foreign matters in the vacuuming region 301 from entering the vacuum pump 331 through the pipeline 335, the pipeline 335 further includes a filtering protection device 334, the filtering protection device is specifically a filtering container 334 connected in series on the pipeline 335, an inlet and an outlet are arranged at the upper end of the filtering container 334, the inlet is communicated with the vacuuming region 301, the outlet is communicated with the vacuum pump 331, the foreign matters in the vacuuming region 301 enter the filtering container 334 and then remain at the bottom of the filtering container 334, so as to prevent the foreign matters from entering the vacuum pump 331.

Referring to fig. 5 and 6, a first open cavity 311 is formed on the lower support 310, a second open cavity 321 is formed on the upper support 320, and after the upper support 320 is abutted to the lower support 310, the first open cavity 311 and the second open cavity 321 form the vacuum-pumping region 301; a sealing portion is provided on a surface of the lower holder 310 opposite to the upper holder 320. The seal portion includes a first seal groove 313, a second seal groove 323, and seal rings 350 respectively disposed in the first seal groove 313 and the second seal groove 323; the first seal groove 313 is disposed at the outer periphery of the first open cavity 311, the second seal groove 323 is disposed at the outer periphery of the second open cavity 321, and the second seal groove 323 is opposite to the first seal groove 313. The structure adopts two sealing rings 350 which are oppositely arranged to seal the vacuum-pumping area 301 at the inner side, and when one sealing ring 350 fails, the other sealing ring 350 can still be sealed, thereby improving the sealing performance of the vacuum-pumping area 301.

Referring to fig. 5 and 6, the plastic package assembly is located outside the vacuumized area 301 and is disposed close to the door housing 210, a gap between the upper support 320 and the lower support 310 forms a bag inlet, and the bag inlet is close to the plastic package assembly; a limiting part 322 is arranged in the second opening cavity 321, and the limiting part 322 is used for limiting the insertion position of the storage bag inserted into 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 322 is a limiting rib, the limiting rib is vertically arranged on the bottom wall surface of the second open cavity 321, and the height of the limiting rib is greater than the depth of the second open cavity 321.

A first groove 314 is formed in the lower support 310, the first groove 314 is located on the outer side of the first sealing groove 313, a second groove 325 is formed in the upper support 320, and the second groove 325 and the first groove 314 are arranged in an up-and-down opposite mode; the plastic package assembly comprises a heating device 370 and a heat insulation pad 360 which are oppositely arranged, wherein the heating device 370 is positioned in the first groove 314, and the heat insulation pad 360 is positioned in the second groove 325. After the upper support 320 moves into the evacuated region 301, which forms a seal with the lower support 310, the thermal insulation pad 360 abuts against the heating device 370; after the vacuum pumping is completed, the storage bag can be rapidly sealed in a plastic package through the heating device 370, and after the plastic package is completed, the upper support 320 moves upwards, so that a user can draw out the sealed storage bag. According to the structure, the plastic package assembly and the vacuumizing area 301 are integrated on the upper support 310 and the lower support 310, vacuumizing and plastic package operation on the storage bag can be completed in sequence only by moving the upper support 320 once, and the operation is more convenient.

Referring to fig. 10 and 11, the heating device 370 includes a heating wire 371, a heat conductive plate 373 disposed at a lower side of the heating wire 371, and an insulation plate 372 wrapped outside both ends of the heating wire 371, both ends of the heating wire 371 extending in a length direction of the upper holder 320 and bent upward at both sides of the upper holder 320, the insulation plate 372 fixing both free ends of the heating wire 371 to the upper holder 320. In the structure, the insulating plate 372 is formed into a bent plate and is coated on the outer side of the heating wire 371, so that the heating wire 371 is prevented from being exposed on the outer side, and the safety is improved; in addition, the heat conducting plate 373 diffuses the heating area of the heating wire 371, so that the plastic packaging area of the storage bag is increased, and the plastic packaging is firmer.

Two free ends of the heating wire 371 are respectively connected with two wires led out through the connecting terminal 374 through the spring 375, the heating wire 371 can be always in a tensioning state through the spring 375, the flatness of the heating wire 371 is increased, and then the heat conducting plate 373 positioned on the lower side of the heating wire 371 is in closer contact with a storage bag, so that the problems of untight contact and plastic package of individual positions caused by the unevenness of the heating wire 371 are avoided.

Referring to fig. 7 and 8, the refrigerator according to the embodiment of the present invention may further include a driving device 340 for driving the upper support 320 to move toward or away from the lower support 310, and locking and unlocking of the lower support 310 and the upper support 320 may be achieved by controlling automatic lifting of the driving device 340, so as to achieve automatic vacuum packaging.

When the driving device 340 is one, the driving device 340 acts on the middle region of the upper support 320, which may cause the edge region of the upper support 320 to be not tightly engaged with the lower support 310, thereby resulting in air leakage from the vacuum-pumping region 301; referring to fig. 7 and 8, when there are two driving devices 340, the two driving devices 340 are respectively disposed at both sides of the upper support 320, and this structure can ensure that the edge region of the upper support 320 is in close contact with the lower support 310, and can improve the sealing reliability of the vacuum-pumping region 301.

The driving device 340 can be implemented in various manners, for example, the driving device 340 can be a pneumatic driving device, and if the pneumatic driving device is adopted as the driving device, the occupied space is large; as another example, referring to fig. 12 and 13, the driving device 340 may be an electric driving device, and specifically, the driving device 340 includes a motor 341 and a transmission mechanism for converting a rotational motion of the motor 341 into a linear motion of the upper support 320, and if the driving device 340 is an electric driving device, the refrigerator has a more compact structure and occupies a smaller space, and therefore, the driving device 340 is preferably an electric driving device.

Specifically, the motor 341 is arranged along the thickness direction of the door body, the transmission mechanism includes a driving gear 342, a first reduction gear 343, a second reduction gear 344 and an output rack 345, wherein the driving gear 342 is fixedly connected to an output shaft of the motor 341, the driving gear 342 is meshed with the first reduction gear 343, the second reduction gear 344 is coaxially arranged with the first reduction gear 343, the output rack 345 extends along the height direction of the door body 200, the upper end of the output rack 345 is meshed with the second reduction gear 344, and the lower end of the output rack 345 is connected to the upper support 320. The driving gear 342 and the first reduction gear 343 in the structure form a reduction gear set, so that the high rotating speed of the motor 341 can be reduced, the output rack 345 is meshed with the second reduction gear 344, the rotary motion of the second reduction gear 344 is converted into the linear motion of the output rack 345, and compared with synchronous belt transmission and lead screw transmission, the bearing capacity of the structure is larger, and the transmission precision is higher.

Referring to fig. 8, 13 and 14, a connecting plate 347 is disposed between the output rack 345 and the upper support 320, the connecting plate 347 is in threaded connection with the upper support 320, a guide groove 3471 is formed on the connecting plate 347, the lower end of the output rack 345 is inserted into the guide groove 3471, a first elongated pin hole and a second elongated pin hole are respectively disposed on two opposite side walls of the guide groove 3471 and the lower end of the output rack 345, and a pin 346 is inserted into the first elongated pin hole and the second elongated pin hole to connect the connecting plate 347 and the output rack 345; a gap is provided between the lower end surface of the output rack 345 and the bottom of the guide groove 3471, and an elastic body 348 is provided in the gap. When 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, the set rotation stroke of the motor 341 is usually used as an in-place judgment signal, and the above structure can ensure that the output rack 345 can still continue to move downward for a certain distance after the upper support 320 moves downward to be in contact with the lower support 310, so that the elastic body 348 is compressed, the motor 341 is prevented from being locked, the motor 341 can be protected, and the pressing force can be kept stable.

Referring to fig. 8 and 9, the vacuum packaging apparatus 300 further includes a mounting base 305 disposed on an upper side of the upper support 320, the mounting base 305 is provided with three chambers, namely, a vacuum pump mounting cavity 3051 located at a middle position and a driving apparatus mounting cavity 3052 located at two sides, the vacuum pump assembly 330 is located in the vacuum pump mounting cavity 3051, and referring to fig. 6 and 9, the upper support 320 is provided with a vent hole 324 for communicating with the vacuum pump assembly 330; the drive 340 is located within the drive mounting cavity 3052; the both sides of mount pad 305 are equipped with the engaging lug, and the bolted connection of mount pad 305 on through locating the engaging lug is on door shell 210, and mount pad 305 is located second installation cavity 221. The structure enables each part to be assembled in a modularized mode, each part is not exposed on the outer surface, and the integrity of the device is good.

An operation panel 270 is covered at the opening part of the installation cavity 213, an insertion port 271 for inserting the storage bag is formed on the operation panel 270, and the lower surface of the insertion port 271 is flush with the upper surface of the first opening cavity 213; the operation panel 270 is provided at the outside thereof with a home bar door 260, and the home bar door 260 is hinged to the door body 200 at the lower end thereof and can be turned over to a position perpendicular to the surface of the door housing 210. By adopting the structure, the vacuum packaging device 300 can be integrally hidden at the rear side of the operation panel 270, when a user needs to carry out vacuum plastic packaging, the opening of the storage bag can be directly inserted into the insertion port 271 on the operation panel 270 and directly extends to the upper surface of the first opening cavity 311, and when the upper support 320 moves downwards, the opening of the storage bag is directly positioned in the vacuum-pumping area 301, so that the vacuum-pumping failure caused by the dislocation of the opening of the storage bag is avoided; in addition, the structure can also carry out vacuum packaging treatment after placing the storage bag containing food on the bar counter door 260 in the state of opening the bar counter door 260, thereby facilitating the operation of a user, and not influencing the appearance aesthetic property of the door body after closing the bar counter door 260.

An indicating device and a control button are arranged on the operation panel 270, and the indicating device is used for displaying the working state of the vacuum packaging device 300; and a control button for controlling the start or stop of the vacuum packaging apparatus 300. This structure facilitates control of the start or stop of the vacuum sealing apparatus 300, and the user can select whether the storage bag can be drawn out according to the operation state displayed by the indicating means.

When a user plastically packages a storage bag filled with powder or liquid, the powder or liquid may enter the vacuuming area 301 during vacuuming and finally accumulate in the first open cavity 311 of the lower support 310; therefore, in order to facilitate the user to clean the food waste in the lower holder 310, the lower holder 310 is clamped on the rear wall surface of the mounting cavity 213 by a clamping structure.

Referring to fig. 14 and 15, the clamping structure 800 includes a first elastic hook 810 disposed on the lower surface of the lower holder 310 and a second elastic hook 820 disposed on the rear wall surface of the mounting cavity 213; the first elastic hook 810 comprises a first elastic arm 811, a second elastic arm 812 and a first hook 813, wherein the first elastic arm 811 is vertically arranged on the lower surface of the lower support 310; the second elastic arm 812 is arranged at one end of the first elastic arm 811 far away from the lower support 310 and is perpendicular to the first elastic arm 811; the first hook 813 is arranged at one end of the second elastic arm 812 far away from the first elastic arm 811, the first hook 813 extends in the direction far away from the lower support 310, and an included angle between the lower surface of the first hook 813 and the second elastic arm 812 is an acute angle; the second elastic hook 820 comprises a third elastic arm 821 vertically arranged on the rear wall surface of the installation cavity 213 and a second hook body 822 arranged at one end of the third elastic arm 821 far away from the rear wall surface of the installation cavity 213, the second hook body 822 is matched with the first hook body 813, and an included angle between the upper surface of the second hook body 822 and the third elastic arm 821 is an acute angle. When the lower support 310 is installed, the lower support 310 is pushed towards the inner side of the door body, after the first hook body 813 is contacted with the second hook body 822, the contact surface of the first hook body 813 and the second hook body 822 is an inclined surface, so that a guiding effect can be achieved, and the first hook body 813 and the second hook body 822 can be accurately buckled; when the lower support 310 is detached, the lower support 310 is pulled outward, and the elastic arms corresponding to the first elastic hook 810 and the second elastic hook 820 are elastically deformed to separate the first hook 813 from the second hook 822, which is more convenient for a user to detach and install the lower support 310.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A refrigerator, comprising:

a low temperature storage chamber forming a low temperature storage space;

the door body is used for opening or closing the low-temperature storage chamber; the door body comprises a door inner container and a door outer shell; it is characterized in that the preparation method is characterized in that,

the door shell to the sunken installation cavity that forms of door inner bag direction, the refrigerator still includes:

a vacuum packaging device disposed within the mounting cavity; the vacuum packaging apparatus includes:

the upper support and the lower support correspond to each other up and down, and open cavities are formed in the opposite surfaces of the upper support and/or the lower support; the upper support can move towards or away from the lower support; when the upper support is in butt joint with the lower support, the opening cavity is sealed by a sealing part to form a vacuum-pumping area;

the vacuum pump assembly is communicated with the vacuumizing area and is used for vacuumizing or decompressing the vacuumizing area;

the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished;

the rear wall of the installation cavity is provided with a vacuum insulation board on one side facing the low-temperature storage chamber, the vacuum insulation board is covered with a decorative cover, the decorative cover is detachably connected with the door liner, and a foaming layer is arranged between the door shell and the rest part of the door liner.

2. The refrigerator according to claim 1, wherein in a thickness direction of the door body, an extension surface of the decorative cover is flush with a partial wall surface of the door liner closest to the low temperature storage chamber; or the extending surface of the decorative cover is lower than the partial wall surface of the door liner, which is closest to the low-temperature storage chamber.

3. The refrigerator according to claim 1, wherein a first sealing member is provided between the vacuum insulation panel and the rear wall of the installation cavity; and/or a second seal is arranged between the vacuum insulation panel and the decorative cover.

4. The refrigerator according to claim 1, wherein the vacuum insulation panel is an aerogel vacuum insulation panel.

5. The refrigerator according to any one of claims 1 to 4, wherein the vacuum pump assembly comprises:

the vacuum pump is communicated with the vacuumizing area through a pipeline;

the pressure detection device is communicated with the vacuumizing area and is used for detecting the pressure of the vacuumizing area;

and the pressure relief device is communicated with the vacuumizing area and is used for relieving pressure in the vacuumizing area.

6. The refrigerator according to claim 1,

the lower support is provided with a first open cavity, the upper support is provided with a second open cavity, and after the upper support is in butt joint with the lower support, the first open cavity and the second open cavity form the vacuumizing area; the sealing part is arranged on the surface of the lower support opposite to the upper support.

7. The refrigerator according to claim 6, wherein the sealing portion comprises:

the first sealing groove is arranged on the lower support and is positioned on the periphery of the first opening cavity;

the second sealing groove is arranged on the upper support and is positioned on the periphery of the second opening cavity; the second sealing groove is opposite to the first sealing groove in position;

and the two sealing rings are respectively arranged in the first sealing groove and the second sealing groove.

8. The refrigerator according to claim 6,

the plastic package assembly is positioned at the outer side of the vacuumizing area and is arranged close to the door shell, a storage bag inlet is formed in a gap between the upper support and the lower support, and the storage bag inlet is close to the plastic package assembly; the first opening cavity or the second opening cavity is internally provided with a limiting part which is used for limiting the insertion position of the storage bag inserted in the vacuum-pumping area, and the opening position of the storage bag is prevented from extending out of the vacuum-pumping area.

9. The refrigerator according to claim 8,

the limiting part is a limiting rib arranged in the first open cavity or the second open cavity, the limiting rib is vertically arranged on the bottom wall surface of the first open cavity or the second open cavity, and the height of the limiting rib is larger than the depth of the first open cavity or the second open cavity.

10. The refrigerator according to claim 7,

a first groove is formed in the lower support, the first groove is located on the outer side of the first sealing groove, a second groove is formed in the upper support, and the second groove and the first groove are arranged in an up-down opposite mode;

the plastic package assembly comprises a heating device and a heat insulation pad, the heat insulation pad is located in the first groove, and the heating device is located in the second groove.