CN111412706B

CN111412706B - A kind of refrigerator

Info

Publication number: CN111412706B
Application number: CN202010335431.9A
Authority: CN
Inventors: 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2021-12-24
Anticipated expiration: 2040-04-24
Also published as: CN111412706A

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, the noise is lower during vacuumizing, and the storage space of the refrigerator is not occupied. The refrigerator comprises an upper support, a lower support, a vacuum pump, a plastic package assembly and a vacuum pump seal box, wherein the upper support, the lower support and the plastic package assembly are positioned in an installation cavity of a door shell, which is recessed towards a door inner container direction; the plastic package assembly is used for carrying out plastic package treatment 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 directly finish the vacuumizing work of a storage bag on the refrigerator without other equipment, is more convenient and faster to operate, has less noise during vacuumizing, and does not occupy the storage space of the refrigerator.

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: 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 vacuum pump is communicated with the vacuumizing area; the plastic package assembly is arranged in the mounting cavity and used for carrying out plastic package treatment on the storage bag after vacuumizing is finished; and the vacuum pump sealing box is arranged outside the vacuum pump.

The refrigerator provided by the embodiment of the invention comprises an upper support, a lower support, a plastic package assembly, a vacuum pump and a vacuum pump sealing box, wherein a door shell is sunken towards the direction of a door inner container to form a mounting cavity; 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 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, the operation is more convenient and faster, and the storage space is not occupied; in addition, because the vacuum pump sealing box is arranged outside the vacuum pump, the vacuum pump sealing box blocks the gas communication between the vacuum pump and the installation environment, therefore, the noise inside the vacuum pump cannot be directly conducted to the outside of the refrigerator, and the noise of the refrigerator is small during vacuum pumping.

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 diagram illustrating the connection of an upper support, a lower support and a vacuum pump seal box in a refrigerator according to an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a vacuum pump sealing box in a refrigerator according to an embodiment of the present invention;

FIG. 5 is an exploded view of a vacuum pump sealing box in a refrigerator according to an embodiment of the present invention;

FIG. 6 is a schematic perspective view of a housing of a vacuum pump sealing box in a refrigerator according to an embodiment of the present invention;

FIG. 7 is a schematic perspective view of a cover plate of a vacuum pump sealing box in a refrigerator according to an embodiment of the present invention;

FIG. 8 is a schematic perspective view of a vacuum pump in a refrigerator according to an embodiment of the present invention;

FIG. 9 is a schematic view illustrating an assembly of a sealing box, a fixing plate and rubber feet of a vacuum pump in a refrigerator according to an embodiment of the present invention;

FIG. 10 is a schematic perspective view of a fixing plate in a refrigerator according to an embodiment of the present invention;

fig. 11 is a schematic perspective view illustrating a second sealing member of a vacuum pump sealing box in a refrigerator according to an embodiment of the present invention;

FIG. 12 is a sectional view showing a state where an upper holder and a lower holder are separated from each other in a refrigerator according to an embodiment of the present invention;

FIG. 13 is a schematic view showing the assembly of an upper support, a lower support and a driving device in a refrigerator according to an embodiment of the present invention;

FIG. 14 is a schematic perspective view of an upper bracket of a refrigerator according to an embodiment of the present invention;

FIG. 15 is an exploded view of an upper bracket and a heating device in a refrigerator according to an embodiment of the present invention;

FIG. 16 is a partial sectional view of a coupling of an upper holder and a heating device in a refrigerator according to an embodiment of the present invention;

FIG. 17 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. 18 is a schematic view showing the connection between the upper support and the driving unit in the lowered position in the refrigerator according to the embodiment of the present invention;

FIG. 19 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. 20 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 refrigerator according to the embodiment of the present invention further includes an upper support 320, a lower support 310, a plastic package assembly, a vacuum pump 500, and a vacuum pump seal box 600, the door outer shell 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, and the upper support 320, the lower support 310, and the plastic package assembly are all located in the mounting cavity 213. Referring to fig. 1, the upper holder 320, the lower holder 310 and the plastic package assembly may be disposed on the freezing door 200A or the refrigerating door 200B, and since the refrigerating door 200B is located at an upper side, it is generally preferable to be disposed on the refrigerating door 200B in order to meet the usage habit of the user.

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, the vacuum pump 500 is externally provided with a vacuum pump sealing box 600, 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; in addition, because the vacuum pump sealing box 600 is arranged outside the vacuum pump 500, the noise inside the vacuum pump 500 is not directly conducted to the outside of the refrigerator, and the noise of the refrigerator is low during vacuum pumping.

There are various locations where the vacuum pump 500 may be disposed, and for example, the vacuum pump 500 may be disposed on the upper surface of the low temperature storage chamber 100, and since the vacuum pump 500 is located outside the low temperature storage chamber 100, compared to the vacuum pump 500 located inside the low temperature storage chamber 100, the refrigerator adopting the structure is more noisy due to the secondary noise reduction without the cabinet; as another example, referring to fig. 3, the vacuum pump 500 may be disposed inside the compressor compartment 101, and since the vacuum pump 500 is far from the outside of the refrigerator, noise inside the vacuum pump 500 is not directly transmitted to the outside of the refrigerator, the noise of the refrigerator is small, and the vacuum pump 500 does not occupy a storage space of the low temperature storage chamber 100, a structure in which the vacuum pump 500 is disposed inside the compressor compartment 101 is preferable.

Specifically, referring to fig. 3, the upper support 320, the lower support 310 and the plastic package assembly are all located in the door body 200, the vacuum pump 500 is located in the compressor bin 101, the vacuum pump 500 is communicated with the vacuum-pumping region 301 through an air pipeline 335, wherein the air pipeline 335 penetrates out of the top of the refrigerator body after passing through the heat insulation layer 230 along the U-shaped shell of the refrigerator body, enters the interior of the door body 200 through the hinge hole 240, and is communicated with the vacuum-pumping region 301.

The vacuum pump seal box 600 has various realizable structures, for example, the vacuum pump seal box 600 can be provided with an opening at the top, and the structure has the defects that whether the vacuum pump 500 is installed in place cannot be directly seen, so that the vacuum pump 500 is easy to vibrate greatly due to the fact that the vacuum pump 500 is not centered, the noise reduction effect of the vacuum pump seal box 600 is affected, and in addition, the factory consistency of the vacuum pump seal box assembly is poor; as another example, referring to fig. 4, 5 and 6, the vacuum pump sealing box 600 may include a housing 610, wherein two opposite side surfaces of the housing 610 in the horizontal direction are respectively provided with a mounting port 611, a third sealing groove 612 is formed in an outer periphery of the mounting port 611, a second sealing member 630 is disposed in the third sealing groove 612, a cover plate 620 covers the two mounting ports 611, and the second sealing member 630 is used for sealing a gap between the housing 610 and the cover plate 620. This structure both can seal vacuum pump 500 in vacuum pump seal box 600, can also directly see whether vacuum pump 500 is located the central point of vacuum pump seal box 600 and put, has not only improved the uniformity that dispatches from the factory of vacuum pump seal box subassembly to reduce vacuum pump 500's vibrations, improved vacuum pump seal box 600's noise reduction effect.

Referring to fig. 8, a vacuum pump 500 in a refrigerator according to an embodiment of the present invention includes a pump main body 520 and a motor 510, wherein the pump main body 520 is disposed on a bottom wall surface of a housing 610, and the motor 510 protrudes from a top of the pump main body 520.

Referring to fig. 6 and 7, the inner wall surface of the housing 610 is provided with a first stopper structure, and the inner side of the cover plate 620 is provided with a second stopper structure, which are used to limit the vacuum pump 500 at the center of the housing 610. This structure can ensure that the vacuum pump 500 can be accurately positioned at the center of the housing 610 during installation, thereby reducing vibration and further reducing noise.

Specifically, referring to fig. 6, the first limiting structure includes a plurality of first limiting plates 613 vertically disposed on the bottom wall surface of the housing 610 or two side wall surfaces adjacent to the bottom wall surface, two adjacent first limiting plates 613 are parallel to each other, in order to reinforce the first limiting plates 613, a reinforcing rib 614 perpendicular to the first limiting plates 613 may be disposed between the two adjacent first limiting plates 613, the plurality of first limiting plates 613 enclose a concave groove, and the pump body 520 is disposed in the concave groove. Referring to fig. 7, the second limiting structure includes second limiting plate 621 and third limiting plate 622 that set up perpendicularly on apron 620, second limiting plate 621 and third limiting plate 622 are located same horizontal plane, be equipped with first cambered surface 623 on the second limiting plate 621, be equipped with second cambered surface 624 on the third limiting plate 622, first cambered surface 623, form the draw-in groove 625 of opening towards motor 510 between the medial surface of apron 620 and the second cambered surface 624, the internal diameter of draw-in groove 625 and the external diameter looks adaptation of motor 510, but motor 510 chucking is in this draw-in groove 625.

Referring to fig. 8, since the pump body 520 and the first and second limit structures are rigid members, the bottom wall surface and the side wall surface of the pump body 520 may be wrapped with a shock absorbing member 530 for absorbing shock of the vacuum pump 500, and the structure may further reduce noise of the refrigerator, specifically, the shock absorbing member 530 may be a rubber pad or an EPDM foam, and is not limited herein.

There are many available connection modes between the vacuum pump 500 and the vacuum-pumping area 301, for example, an air pipeline through hole may be formed on the housing 610, and an air pipeline connected to the suction port and the exhaust port of the vacuum pump 500 passes through the air pipeline through hole and then is respectively communicated with the vacuum-pumping area 301 or the compressor chamber 101, which has a disadvantage that, because a gap exists between the air pipeline and the air pipeline through hole, noise generated by the vacuum pump 500 is transmitted from the gap, which affects the sealing performance of the vacuum pump seal box 600; as another example, referring to fig. 3, 6 and 8, a suction fitting 617 and an exhaust fitting 618 may be formed on the casing 610, one end of the suction fitting 617 is connected to the vacuuming region 301 through a gas line 335, the other end of the suction fitting 617 is connected to a suction port 540 of the vacuum pump 500, one end of the exhaust fitting 618 is connected to an exhaust port 550 of the vacuum pump 500, and the other end of the exhaust fitting 618 is connected to the compressor housing 101 through a gas line 335.

In order to facilitate the disassembly, a fixing plate 700 can be further arranged in the compressor bin 101, the lower surface of the fixing plate 700 is connected to the compressor support plate, referring to fig. 9, two opposite outer side surfaces of the shell 610 are respectively provided with a clamping block 615, and the fixing plate 700 is provided with an elastic clamping groove 711 matched with the clamping block.

Specifically, referring to fig. 6 and 10, two elastic fastening plates 710 are vertically disposed on the upper surface of the fixing plate 700, two elastic fastening grooves 711 are respectively disposed on the corresponding elastic fastening plates 710, and after the housing 610 is fastened to the fixing plate 700, the two elastic fastening plates 710 are respectively disposed on two sides of the housing 610, so as to protect the housing 610.

Because the fixing plate 700 and the compressor support plate are rigid members, a plurality of rubber feet 800 may be disposed between the fixing plate 700 and the compressor support plate for absorbing the shock of the vacuum pump 500, the number of the rubber feet 800 may be two, three, four or other numbers, for example, referring to fig. 9 and 10, when the fixing plate 700 is a rectangular plate, foot mounting holes 712 may be disposed at positions of the fixing plate 700 near four vertex angles, the number of the rubber feet 800 may be four correspondingly, the upper ends of the four rubber feet 800 are respectively embedded in one of the foot mounting holes 712, and the lower ends thereof are connected with the compressor support plate. This structure can further reduce the noise of the refrigerator.

Referring to fig. 4 and 5, in order to reduce weight, the casing 610 and the two cover plates 620 may be injection-molded parts, and in order to further improve the sealing performance of the vacuum pump sealing box 600, the vacuum pump sealing box 600 further includes two outer cover plates 640 respectively disposed at outer sides of the respective cover plates 620, and a casing 650 disposed at an outer side of the casing 610, the casing 650 including a top surface and two side surfaces disposed perpendicular to the top surface, the top surface of the casing 650 contacting the top surface of the casing 610 and the side surfaces of the casing 650 contacting the side surfaces of the casing 610 after the casing 650 is mounted on the casing 610. Because the casing 610 and the two cover plates 620 are injection-molded parts, and the casing 650 and the two outer cover plates 640 are metal parts, the structure can reduce the weight of the vacuum pump seal box 600 and improve the noise reduction effect of the vacuum pump seal box 600.

As the width of the sealing groove is generally slightly larger than the width of the sealing element, the sealing element is not easily removed from the sealing groove, and therefore, when the second sealing element 630 needs to be replaced, an external tool is generally needed, the operation is complicated, and the second sealing element 630 is easily damaged, referring to fig. 6, in the embodiment of the present invention, the auxiliary removing groove 616 is provided on the housing 610, the extending direction of the auxiliary removing groove 616 is perpendicular to the extending direction of the third sealing groove 612, and the auxiliary removing groove 616 penetrates through the sidewall of the third sealing groove 612; referring to fig. 11, the second sealing member 630 includes a sealing ring 631 and an auxiliary removing block 632 for removing the sealing ring 631, the sealing ring 631 is in a disconnected state, the auxiliary removing block 632 is disposed at the disconnected position of the sealing ring 631, the sealing ring 631 is fitted to the third sealing groove 612, and the auxiliary removing block 632 is fitted to the auxiliary removing groove 616. After the auxiliary disassembling block 616 is installed in the auxiliary disassembling groove 616, the two opposite ends are not shielded, so that when the second sealing element 630 needs to be replaced, an external tool is not needed, the second sealing element 630 can be directly disassembled manually, the operation is simple, and the second sealing element 630 is not easy to be damaged.

Referring to fig. 2 and 12, 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, 12 and 14, 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. 15 and 16, 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. 13, 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. 13, 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. 17 and 18, 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, 17 and 18, 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. 13, 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, the mounting base 305 is provided with three chambers, which are an air pipeline accommodating cavity 3051 located at a middle position and a driving device mounting cavity 3052 located at two sides, the air pipeline 335 passes through the air pipeline accommodating cavity 3051 and then is connected to the vacuum pump 500, and referring to fig. 12 and 13, the upper support 320 is provided with a vent hole 324 for communicating with the vacuum pump 500; 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 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 3, 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 311; 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 upper support 320, the lower support 310 and the like can be integrally hidden at the rear side of the operation panel 270, when a user needs to carry out vacuum plastic package, 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 to avoid vacuum-pumping failure caused by dislocation of the opening of the storage bag; 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.

The operation panel 270 is provided with an indicating device and a control button, and the indicating device is used for displaying the working state of the vacuum pump 500; and a control button for controlling the start or stop of the vacuum pump 500. This structure facilitates control of the start or stop of the vacuum pump 500, 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. 19 and 20, the clamping structure 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 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:

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 vacuum pump is communicated with the vacuumizing area;

The plastic package assembly is arranged in the mounting cavity and used for carrying out plastic package treatment on the storage bag after vacuumizing is finished;

a vacuum pump sealing box arranged outside the vacuum pump;

one end of the air pipeline is connected with the vacuum pump, and the other end of the air pipeline is communicated with the vacuumizing area;

the operation panel is provided with an indicating device and a control button; the control button is used for controlling the starting or stopping of the vacuum pump, and the indicating device is used for displaying the working state of the vacuum pump.

2. The refrigerator of claim 1, wherein the vacuum pump is disposed within a compressor bin.

3. The refrigerator according to claim 2, wherein the vacuum pump sealing box comprises:

the vacuum pump comprises a shell, wherein two opposite side surfaces of the shell in the horizontal direction are respectively provided with a mounting opening used for mounting the vacuum pump, and the periphery of the mounting opening is provided with a third sealing groove;

a second seal disposed within the third seal groove;

and the two cover plates are respectively covered on the two mounting openings.

4. The refrigerator according to claim 3,

the vacuum pump comprises a pump main body arranged on the bottom wall surface of the shell and a motor extending out of the top of the pump main body;

The inner wall surface of the shell is provided with a first limiting structure, and the inner wall surface of the cover plate is provided with a second limiting structure;

first limit structure includes:

the first limiting plates are vertically arranged on the bottom wall surface of the shell and two side wall surfaces adjacent to the bottom wall surface, and the two adjacent first limiting plates are parallel to each other; the reinforcing ribs are respectively arranged between two adjacent first limiting plates, and the reinforcing ribs are perpendicular to the adjacent first limiting plates;

the first limiting plates surround a concave groove, and the pump main body is located in the concave groove;

the second limit structure comprises:

the second limiting plate and the third limiting plate are perpendicularly arranged on the cover plate, the second limiting plate and the third limiting plate are located on the same horizontal plane, a first arc surface is arranged on the second limiting plate, a second arc surface is arranged on the third limiting plate, an opening orientation is formed between the inner side surface of the cover plate and the second arc surface of the motor, the inner diameter of the clamping groove is matched with the outer diameter of the motor, and the motor is clamped in the clamping groove.

5. The refrigerator according to claim 4, further comprising,

And the damping piece is wrapped on the bottom wall surface and the side wall surface of the pump main body.

6. The refrigerator according to claim 3, wherein the housing further comprises,

the air suction joint is formed on the shell, one end of the air suction joint is communicated with the vacuumizing area, and the other end of the air suction joint is communicated with an air suction port of the vacuum pump;

and the exhaust joint is formed on the shell, one end of the exhaust joint is communicated with the exhaust port of the vacuum pump, and the other end of the exhaust joint is communicated with the compressor bin.

7. The refrigerator according to claim 3,

the lower surface of the fixing plate is connected to the compressor supporting plate;

the two clamping blocks are respectively arranged on two opposite outer side surfaces of the shell;

and the two elastic clamping grooves are arranged on the fixing plate and are respectively matched with the corresponding clamping blocks.

8. The refrigerator according to claim 7,

two elastic clamping plates are vertically arranged on the upper surface of the fixing plate, and the two elastic clamping grooves are respectively positioned on the corresponding elastic clamping plates;

the casing with behind the fixed plate lock, two elasticity joint board is located respectively the both sides of casing.

9. The refrigerator of claim 7, further comprising a plurality of rubber feet disposed between the fixing plate and the compressor support plate.

10. The refrigerator according to any one of claims 3 to 9, wherein the housing and both the cover plates are injection molded parts, the vacuum pump seal cartridge further comprising:

the outer cover plates are respectively arranged on the outer sides of the corresponding cover plates;

the shell is arranged on the outer side of the shell and comprises a shell top surface and two shell side surfaces which are perpendicular to the shell top surface, after the shell is arranged on the shell, the shell top surface is in contact with the shell top surface, and the shell side surfaces are in contact with the shell side surfaces;

the shell and the two outer cover plates are all metal pieces.

11. The refrigerator according to claim 3,

an auxiliary disassembling groove used for disassembling the second sealing element is arranged on the shell, and the extending direction of the auxiliary disassembling groove is perpendicular to the extending direction of the third sealing groove; the auxiliary detaching groove penetrates through the side wall of the third sealing groove;

the second seal member includes:

the sealing ring is in a disconnected type and is matched with the sealing groove;

The auxiliary disassembling block is used for disassembling the sealing ring, the auxiliary disassembling block is arranged at the disconnection position of the sealing ring, and the auxiliary disassembling block is matched with the auxiliary disassembling groove.