CN111197899B

CN111197899B - A kind of refrigerator

Info

Publication number: CN111197899B
Application number: CN202010159406.XA
Authority: CN
Inventors: 杨春; 魏喜强
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: 2022-01-07
Anticipated expiration: 2040-03-09
Also published as: CN111197899A

Abstract

The invention discloses a refrigerator, and relates to the technical field of preservation. The vacuumizing operation of the storage bag can be directly completed on the refrigerator, other equipment is not needed, the operation is more convenient, and in addition, the noise is smaller during vacuumizing. The refrigerator comprises a vacuum packaging device, wherein the vacuum packaging device is positioned in an installation cavity of a door shell, which is sunken towards a door inner container, and comprises an upper support, a lower support, a plastic package assembly and a vacuum pump exhaust silencer, wherein the upper support corresponds to the lower support up and down, an opening cavity is formed in the opposite surface of the upper support and/or the lower support, 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 lower support is detachably connected with the door shell; the vacuum pump is communicated with the vacuumizing area, and the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished; the vacuum pump exhaust silencer is communicated with an exhaust port of the vacuum pump. 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 directly finish the vacuumizing work of a storage bag on the refrigerator, does not need other equipment, is more convenient and faster to operate, is convenient for a user to clean food residues, and has less noise during vacuumizing.

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; a door for opening or closing the low-temperature storage space; the door body comprises a door shell, a door liner and a heat insulation layer; the door shell to the door inner bag direction is sunken, forms the installation cavity, 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 are arranged in the mounting cavity, 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 lower support is detachably connected with the door shell; the vacuum pump is communicated with 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 vacuum pump exhaust silencer is communicated with an exhaust port of the vacuum pump.

The refrigerator provided by the embodiment of the invention comprises a vacuum packaging device, wherein a door shell is sunken towards a door inner container to form a mounting cavity; the vacuum packaging device comprises an upper support, a lower support, a vacuum pump, a plastic package assembly and a vacuum pump exhaust silencer, wherein the upper support and the lower support are arranged up and down correspondingly, 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 butted with the lower support, the opening cavity is sealed by the sealing part to form a vacuum-pumping area; the lower support is detachably connected with the door shell; the vacuum pump is communicated with the vacuumizing area; the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished; according to the embodiment of the invention, the vacuumizing area is arranged on the door body, so that the storage bag needing vacuumizing can be directly operated on the refrigerator without other equipment, and the operation is more convenient and faster; the lower support is detachably connected with the door shell, so that a user can conveniently clean food residues in the lower support; in addition, the exhaust port of the vacuum pump is communicated with the exhaust silencer of the vacuum pump, so that aerodynamic noise at the exhaust port of the vacuum pump can be reduced, and the refrigerator has low noise during vacuumizing.

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 partial side sectional view of a refrigeration door of the refrigerator according to the embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a vacuum packaging apparatus in a refrigerator according to an embodiment of the present invention;

FIG. 4 is an exploded view of an exhaust muffler of a vacuum pump in a refrigerator according to an embodiment of the present invention;

FIG. 5 is a front sectional view of an exhaust muffler of a vacuum pump in a refrigerator according to an embodiment of the present invention;

FIG. 6 is a top view of a housing in an exhaust muffler of a vacuum pump in a refrigerator according to an embodiment of the present invention;

FIG. 7 is a sectional view of a refrigerator according to an embodiment of the present invention, showing a state where an upper holder and a lower holder are separated from each other;

FIG. 8 is a schematic perspective view of an upper support of a refrigerator according to an embodiment of the present invention;

FIG. 9 is an exploded view of an upper bracket and a heating device in a refrigerator according to an embodiment of the present invention;

FIG. 10 is a partial cross-sectional view of an upper bracket coupled to a heating device in a refrigerator according to an embodiment of the present invention;

FIG. 11 is a schematic view showing a connection relationship between an upper support and a driving device in a refrigerator according to an embodiment of the present invention;

FIG. 12 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. 13 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. 14 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 outside the low temperature storage chamber 100, a door inner container 220 located inside the low temperature storage chamber 100, an upper end cover (not shown), a lower end cover (not shown), and a heat insulating layer 230 located between the door outer case 210, the door inner container 220, the upper end cover, and the lower end cover; typically, the thermal insulation layer 230 is filled with a foam material.

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. 2 and 3, the door outer 210 of the refrigerator according to the embodiment of the present invention is recessed toward the door inner 220 to form an installation cavity 213, and a vacuum sealing apparatus 300 is disposed in the installation cavity 213. 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. 2 and 7, 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 500 is communicated with the vacuumizing area 301, and the plastic package assembly is used for carrying out plastic package treatment on the storage bag after vacuumizing is finished. According to the embodiment of the invention, the vacuumizing area 301 is arranged on the door body 200, so that the storage bag needing vacuumizing can be directly operated on the refrigerator without other equipment, the operation is more convenient and faster, and the storage space is not occupied; the lower support 310 is detachably connected to the door housing 210, so that when a user plastically seals a storage bag containing powder or liquid, if the powder or liquid enters the vacuuming area 301 during vacuuming, the powder or liquid is finally accumulated in the lower support 310, and therefore, the user can clean accumulated food residues only by detaching the lower support 310; in addition, because the exhaust port of the vacuum pump 500 is communicated with the vacuum pump exhaust silencer 600, aerodynamic noise at the exhaust port of the vacuum pump can be reduced, and the noise of the refrigerator is low during vacuum pumping. Vacuum pump exhaust muffler 600 has multiple positions to set up, the example, vacuum pump exhaust muffler 600 can with vacuum pump 500's gas vent dislocation set, the shortcoming of this structure is, required connecting line is longer between vacuum pump 500 and the vacuum pump exhaust muffler 600, the noise that vacuum pump 500 produced need can get into vacuum pump exhaust muffler 600 after longer pipeline and fall and make an uproar, the noise reduction is relatively poor, the internal space of door is limited moreover, the pipeline is laid the difficulty. As another example, the vacuum pump exhaust silencer 600 may be directly opposite to the exhaust port of the vacuum pump 500, which has advantages of short connecting pipes, timely noise reduction, and easy piping arrangement; therefore, it is preferable that vacuum pump exhaust muffler 600 is disposed to face the exhaust port of vacuum pump 500.

The vacuum pump exhaust silencer 600 may have various realizable structures, for example, the vacuum pump exhaust silencer 600 may be a cylindrical housing with an opening at one end, the opening of the housing is an air inlet, and the side surface of the housing is formed by curling and welding micro-perforated plates, and the structure has the disadvantages that the gas after noise reduction is directly discharged from a plurality of micro-perforated holes, the gas cannot be collected, waste is caused, especially, when harmful components exist in the gas, the environment is polluted, and the human body is injured; as another example, referring to fig. 4 and 5, the vacuum pump exhaust silencer 600 may include a housing 610 having an opening, a cover plate 620 covering a mouth of the housing 610, a hollow cavity 630 formed by the housing 610 and the cover plate 620, a metal microperforated plate 640 disposed in the cavity 630 and dividing the cavity 630 into at least two chambers 631 arranged side by side, and two adjacent chambers 631 communicate with each other through a microperforation 641 disposed on the metal microperforated plate 640; the side wall of the cavity 631 positioned at the two ends is respectively provided with the air inlet 650 and the air outlet 660, the air inlet 650 is connected with the exhaust port of the vacuum pump 500 through a pipeline, the air outlet 660 is communicated with the installation cavity, and the structure has the advantages that the air after noise reduction is discharged from the air outlet 660, so that the collection of the air is facilitated, the secondary utilization of the air is facilitated, and the environment can be protected. In addition, through increasing the quantity of cavity 631 just can realize making an uproar, improve the noise reduction effect, specifically, the quantity of cavity 631 can be four, can realize making an uproar falls in the level four.

There are many connection ways that can be realized between the metal micro-perforated plate 640 and the housing 610, for example, the metal micro-perforated plate 640 may be connected to the housing 610 by bolts or adhered to the housing 610, if the metal micro-perforated plate 640 is connected to the housing 610 by bolts, because the side wall of the housing 610 is provided with a through hole communicated with the outside, a sealing member needs to be additionally arranged, and a dismounting tool needs to be used during dismounting each time, which is very inconvenient to dismount; if the metal microperforated panel 640 is adhered to the casing 610, the metal microperforated panel 640 or the casing 610 may be damaged when the metal microperforated panel 640 needs to be replaced; for another example, referring to fig. 4 and 6, a clamping groove 611 may be formed in both the bottom wall surface and the two opposite side wall surfaces of the housing 610, and the metal micro-perforated plate 640 is clamped in the clamping groove 611.

There are various possible mounting manners between the cover 620 and the housing 610, for example, the cover 620 and the housing 610 may be clamped or hinged, and a sealing member is provided between the cover 620 and the housing 610, which has the disadvantages of complicated structure and high cost; for another example, referring to fig. 5, the cover plate 620 and the housing 610 may be sealed by applying a sealant, specifically, the opening of the cavity 630 may be provided with a cover plate installation cavity 632, the cover plate installation cavity 632 is communicated with the cavity 630, the surface of the cover plate 620 close to the opening of the cover plate installation cavity 632 is lower than the opening of the cover plate installation cavity 632, and the sealant may be applied between the cover plate 620 and the inner wall of the cover plate installation cavity 632.

Referring to fig. 4, the smaller the aperture of the micro-via 641 is, the better the noise reduction effect is, but the greater the processing difficulty is, the higher the cost is, the diameter of the micro-via 641 in the embodiment of the present invention may be 1 to 1.5mm, the aperture can ensure the required noise reduction rate, the cost is low, and the cost performance is highest.

Referring to fig. 7 and 8, in particular, the lower holder 310 may be connected to the door shell 210 by a clamping structure 800, and the clamping structure 800 includes a first elastic hook 810 disposed on a lower surface of the lower holder 310 and a second elastic hook 820 disposed on a 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.

Referring to fig. 2 and 9, 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 butted with the lower support 310, the first open cavity 311 and the second open cavity 321 form a 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 a first seal 350 disposed in the first seal groove 313 and the second seal groove 323, respectively; 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. This configuration employs two first seals 350 disposed opposite each other to seal the evacuated region 301 on the inside, and when one of the first seals 350 fails, the other first seal 350 remains sealable, improving the sealing of the evacuated region 301.

Referring to fig. 2 and 9, the plastic package assembly is located outside the vacuum-pumping region 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. 11 and 12, 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. 3, 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. 3, 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, which 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. 13 and 14, 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. 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. 3, the refrigerator according to the embodiment of the present invention further includes a mounting base 305 disposed on an upper side of the upper support 320, and four sub-chambers are disposed on the mounting base 305, and respectively include a vacuum pump receiving chamber 3051 located at a middle position, a driving device mounting chamber 3052 located at two sides, and a silencer receiving chamber 3053 located in the vacuum pump receiving chamber 3051. Referring to fig. 9 and 10, the upper support 320 is provided with a vent hole 324 for communicating with the vacuum pump 500. Referring to fig. 3, the vacuum pump 500 is located in the vacuum pump receiving cavity 3051, the driving device 340 is located in the driving device mounting cavity 3052, and the vacuum pump exhaust silencer 600 is located in the silencer receiving cavity 3053; in this embodiment, the exhaust port of the vacuum pump 500 is located at the top, so that the muffler accommodating cavity 3053 is located on the top wall surface of the muffler accommodating cavity 3053, and it is sufficient to ensure that the exhaust port of the vacuum pump 500 is closest to the air inlet 650 of the exhaust muffler 600 of the vacuum pump.

The both sides of mount pad 305 are equipped with the engaging lug, and mount pad 305 is on door shell 210 through wearing to locate the bolted connection on the engaging lug, and mount pad 305 is located installation cavity 213. 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.

Referring to fig. 1 and 2, the mouth of the mounting cavity 213 is covered with an operation panel 270, a socket 271 for inserting the storage bag is formed on the operation panel 270, and the lower surface of the socket 271 is flush with the upper surface of the first open 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 from 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; the control button is used to control 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.

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 refrigerator body, a refrigerator door,

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

a door for opening or closing the low-temperature storage space; the door body comprises a door shell, a door liner and a heat insulation layer; it is characterized in that the preparation method is characterized in that,

the door shell to the door inner bag direction is sunken, forms the installation cavity, 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 are arranged in the mounting cavity, and open cavities are formed in the opposite surfaces of the upper support and 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 open cavity comprises a first open cavity and a second open cavity, the first open cavity is arranged on the lower support, and the second open cavity is arranged on the upper support; the seal portion comprises a first seal groove, a second seal groove and a first seal arranged in the first seal groove and the second seal groove respectively; the first sealing groove is arranged on the periphery of the first opening cavity, the second sealing groove is arranged on the periphery of the second opening cavity, and the second sealing groove is opposite to the first sealing groove in position;

the lower support is detachably connected with the door shell;

the vacuum pump is communicated with the vacuumizing area;

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

the vacuum pump exhaust silencer is communicated with an exhaust port of the vacuum pump;

the vacuum pump exhaust muffler includes:

the shell is open;

the cover plate is covered at the opening of the shell, and the shell and the cover plate form a hollow cavity;

a cover plate installation cavity is arranged at the opening part of the cavity and is communicated with the cavity, and the surface of the cover plate close to the opening part of the cover plate installation cavity is lower than the opening part of the cover plate installation cavity; the cover plate and the inner wall surface of the cover plate installation cavity are sealed through sealant, and the cover plate and the end surface of the cover plate installation cavity close to the cover plate are sealed through sealant.

2. The refrigerator of claim 1, wherein the vacuum pump exhaust silencer further comprises:

the metal micro-perforated plate is arranged in the cavity and divides the cavity into at least two chambers which are arranged side by side; a plurality of micro-perforations are uniformly arranged on the metal micro-perforated plate, and two adjacent chambers are communicated through the micro-perforations on the metal micro-perforated plate;

the air inlet and the air outlet are respectively arranged on the side walls of the chambers at the two ends, the air inlet is connected with the exhaust port of the vacuum pump through a pipeline, and the air outlet is communicated with the installation cavity.

3. The refrigerator as claimed in claim 2, wherein a bottom wall surface and two opposite side wall surfaces of the casing are provided with a clamping groove, and the metal micro-perforated plate is clamped in the clamping groove.

4. The refrigerator of claim 2, wherein the micro-perforations have a diameter of 1-1.5 mm.

5. The refrigerator according to any one of claims 1 to 4, wherein the lower supporter is fastened to the door housing by a fastening structure, the fastening structure comprising:

the first elastic clamping hook is arranged on the lower surface of the lower support, and the second elastic clamping hook is arranged on the rear wall surface of the mounting cavity; the first elastic hook comprises:

the first elastic arm is vertically arranged on the lower surface of the lower support;

the second elastic arm is arranged at one end, far away from the lower support, of the first elastic arm and is perpendicular to the first elastic arm;

the first hook body is arranged at one end, far away from the first elastic arm, of the second elastic arm, the first hook body extends in the direction far away from the lower support, and an included angle between the lower surface of the first hook body and the second elastic arm is an acute angle;

the second elastic hook comprises:

the third elastic arm is vertically arranged on the rear wall surface of the mounting cavity;

the second hook body is arranged at one end, far away from the rear wall surface of the mounting cavity, of the third elastic arm, and the second hook body is matched with the first hook body;

when the lower support is pushed towards the inner side of the door body, the first hook body is buckled with the second hook body, and when the lower support is pulled towards the outer side of the door body, the first hook body is separated from the second hook body.

6. The refrigerator according to claim 5,

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 vacuum bag vacuum-pumping device is characterized in that a limiting part is arranged in the opening cavity and used for limiting the insertion position of the storage bag inserted into the vacuum-pumping area, and the opening position of the storage bag is prevented from extending out of the vacuum-pumping area.

7. The refrigerator as claimed in claim 6, further comprising two driving means for driving the upper supporter to move toward or away from the lower supporter, the two driving means being respectively disposed at both sides of the upper supporter.

8. The refrigerator according to claim 7, wherein the driving means comprises:

a motor;

and the transmission mechanism is used for converting the rotary motion of the motor into the linear motion of the upper support.

9. The refrigerator according to claim 7,

the vacuum packaging device also comprises a mounting seat arranged on the upper side of the upper support, and the mounting seat is connected to the inner wall of the mounting cavity; the mount pad includes:

the vacuum pump mounting cavity is arranged in the middle of the mounting seat and used for accommodating the vacuum pump;

the driving device installation cavities are positioned on two sides of the vacuum pump installation cavity and used for accommodating the driving devices;

and the silencer installation cavity is arranged in the vacuum pump installation cavity and used for accommodating the vacuum pump exhaust silencer.