CN111380278B

CN111380278B - A kind of refrigerator

Info

Publication number: CN111380278B
Application number: CN201911072478.4A
Authority: CN
Inventors: 王美艳; 张建; 杨帅岭; 刘铁伟; 周晓东; 杨春
Original assignee: Hisense Shandong Refrigerator Co Ltd
Current assignee: Hisense Shandong Refrigerator Co Ltd
Priority date: 2018-12-29
Filing date: 2019-11-05
Publication date: 2021-11-16
Anticipated expiration: 2039-11-05
Also published as: CN111380280A; CN111380282A; CN111380278A; CN111380279B; CN111380282B; CN111380281A; CN111380281B; CN111380279A

Abstract

The invention discloses a refrigerator, which comprises a storage chamber and a door body for opening or closing the storage chamber, wherein a vacuum packaging device is arranged on the door body, and the vacuum packaging device comprises: the first support is fixedly connected to the door body and provided with a first opening cavity; the second support is hinged to the first support and provided with a second open cavity, the second support rotates towards the direction close to the first support until the first open cavity is in butt joint with the second open cavity, and the first support and the second support are locked through a locking mechanism; a vacuum-pumping area is formed between the first opening cavity and the second opening cavity and is communicated with the vacuum pump through a first pipeline. The refrigerator can carry out vacuum packaging treatment on the storage bag filled with food materials; food materials stored in various compartments of the refrigerator can be subjected to vacuumizing preservation treatment, so that the preservation range is expanded; in addition, the vacuum packaging device does not occupy storage space, so that the user experience is good, and the intelligent degree of the refrigerator is improved.

Description

A kind of refrigerator

The patent application requires the priority of patent application number 201811639720.7, filed in 2018, 12, month and 29, with the patent name 'a refrigerator'.

Technical Field

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

Background

In recent years, people's health consciousness is gradually improved, and the demand for food material preservation is also improved, so that the refrigerator is used as the most common household appliance for storing food materials, and the food material preservation storage becomes a technical demand to be solved urgently in the field of refrigerators.

At present, different preservation technologies are introduced by various manufacturers aiming at the problem of food material preservation and storage. For example, in the vacuum preservation technology, the food deterioration condition is changed in the vacuum state. Firstly, in a vacuum environment, microorganisms and various promoting enzymes are difficult to survive, and the requirement of microorganism breeding can be met for a long time; secondly, under the vacuum state, the oxygen in the container is greatly reduced, various chemical reactions can not be completed, the food can not be oxidized, and the food can be preserved for a long time.

The vacuum preservation technology applied to the refrigerator at present mainly comprises the steps that a sealed drawer is arranged in the refrigerator, and the drawer is vacuumized through a small vacuum pump arranged outside the drawer, so that the drawer is kept in a negative pressure state, and the preservation of food materials in the drawer is realized. This preservation method has the following limitations: 1. because the vacuum pumping treatment is realized by a vacuum pump, the vacuum pump can occupy part of the storage space of the refrigerating chamber; 2. the drawer is required to be sealed in the fresh-keeping mode, otherwise, the vacuum state cannot be formed in the drawer, and therefore higher requirements are provided for the forming and assembling processes of the drawer; 3. the fresh-keeping mode can only keep food materials in the drawer fresh, and food materials in other areas of the refrigerator cannot be kept fresh.

Disclosure of Invention

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

In order to solve the technical problem, the invention discloses a refrigerator, which comprises a storage chamber and a door body for opening or closing the storage chamber, wherein a vacuum packaging device is arranged on the door body, and the vacuum packaging device comprises: the first support is fixedly connected to the door body and provided with a first opening cavity; the second support rotates towards the direction close to the first support until the first open cavity is in butt joint with the second open cavity, and the first support and the second support are locked through a locking mechanism; and a vacuumizing area is formed between the first opening cavity and the second opening cavity and is communicated with the vacuum pump through a first pipeline.

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

according to the refrigerator, the door body is provided with the vacuum packaging device, so that a storage bag filled with food materials to be put into the refrigerator can be subjected to vacuum packaging treatment; compared with the existing vacuum drawer, the vacuum packaging device can be used for vacuumizing and refreshing food materials stored in various compartments of a refrigerator, so that the refreshing range is expanded; in addition, the vacuum packaging device does not occupy storage space, so that the user experience is good, and the intelligent degree of the refrigerator is improved.

Drawings

The objects and advantages of the present invention will be understood by the following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a schematic structural view of a first embodiment of a refrigerator according to the present invention;

FIG. 2 is a schematic structural view of a first embodiment of a refrigeration door body of a refrigerator according to the present invention;

FIG. 3 is an exploded view of a first embodiment of a refrigeration door body for a refrigerator according to the present invention;

FIG. 4 is an exploded view of a first embodiment of the vacuum packaging apparatus of the present invention;

FIG. 5 is a schematic structural diagram of a first support in a first embodiment of the vacuum packaging apparatus of the present invention;

FIG. 6 is a schematic structural diagram of a second support in the first embodiment of the vacuum packaging apparatus of the present invention;

FIG. 7 is a schematic structural view illustrating an installation manner of a vacuum pump in the first embodiment of the vacuum packaging apparatus of the present invention;

FIG. 8 is a view showing a state before vacuum is applied to the first embodiment of the vacuum packaging apparatus of the present invention;

fig. 9 is a sectional view of the vacuum packaging apparatus in the state of fig. 8;

FIG. 10 is a view showing a state where a vacuum is applied to the first embodiment of the vacuum packaging apparatus according to the present invention;

fig. 11 is a sectional view of the vacuum packaging apparatus in the state of fig. 10;

FIG. 12 is an exploded view of a second embodiment of the refrigeration door body of the refrigerator according to the present invention;

FIG. 13 is an exploded view of a second embodiment of the vacuum packaging appliance of the present invention;

FIG. 14 is a schematic view of another embodiment of the vacuum pump according to the present invention;

fig. 15 is a schematic configuration view of a third embodiment of a refrigerator according to the present invention;

FIG. 16 is a schematic structural view of a third embodiment of a refrigeration door body of a refrigerator according to the present invention;

FIG. 17 is an exploded view of a third embodiment of a refrigeration door body for a refrigerator according to the present invention;

FIG. 18 is a schematic structural view of a vacuum packaging apparatus according to a third embodiment of the present invention in a closed state;

FIG. 19 is a schematic structural view showing an opened state of a vacuum packaging apparatus according to a third embodiment of the present invention;

fig. 20 is a schematic structural view of a first support in a third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 21 is a schematic structural view showing a vacuum pump mounting manner in a third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 22 is a schematic structural view of a second support in a third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 23 is another structural view of a second support in the third embodiment of the vacuum packaging apparatus of the present invention;

fig. 24 is an exploded view of a second holder in a third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 25 is a diagram illustrating a state before a manual pressure relief device releases pressure in a third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 26 is a cross-sectional view of the manual pressure relief device of FIG. 25;

FIG. 27 is a view showing a state in which a manual pressure relief device is used for pressure relief in a third embodiment of the vacuum packaging apparatus according to the present invention;

FIG. 28 is a cross-sectional view of the manual pressure relief device of FIG. 27;

fig. 29 is a locking state diagram of a locking device in the third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 30 is a view showing an unlocked state of the locking device in the third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 31 is a view showing an opened state of the second support after the locking device is unlocked in the third embodiment of the vacuum packaging apparatus of the present invention;

FIG. 32 is a schematic structural view of a fourth embodiment of the vacuum packaging apparatus of the present invention;

fig. 33 is another schematic structural view of a fourth embodiment of the vacuum packaging apparatus of the present invention.

Detailed Description

The technical scheme of the invention is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless 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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

FIG. 1 is a perspective view of one embodiment of a refrigerator according to the present invention; referring to fig. 1, the refrigerator 1 of the present embodiment has an approximately rectangular parallelepiped shape. The refrigerator 1 has an external appearance defined by a storage chamber 100 defining a storage space and a plurality of door bodies 200 disposed in the storage chamber 100, wherein, referring to fig. 2, the door body 200 includes a door body outer shell 210 located outside the storage chamber 100, a door body inner container 220 located inside the storage chamber 100, an upper end cover 230, a lower end cover 240, and an insulating layer located between the door body outer shell 210, the door body inner container 220, the upper end cover 230, and the lower end cover 240; typically, the thermal insulation layer is filled with a foam material.

The storage chamber 100 has an open cabinet, and the storage chamber 100 is vertically partitioned into a lower freezer compartment 100A and an upper refrigerator compartment 100B. Each of the partitioned spaces may have an independent storage space.

In detail, the freezing compartment 100A is defined at a lower side of the storage compartment 100 and may be selectively covered by a drawer type freezing compartment door 200A. The space defined above the freezing compartment 100A is partitioned into left and right sides to define the refrigerating compartment 100B, respectively.

The refrigerating compartment 100B may be selectively opened or closed by a refrigerating compartment door body 200B pivotably mounted on the refrigerating compartment 100B.

As shown in fig. 3, a vacuum packaging device 300 is arranged on the door body 200 of the refrigerator, and the vacuum packaging device 300 is used for vacuumizing and plastic packaging a storage bag; 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 use habit of the user.

As shown in fig. 4 to 12, a first embodiment of the vacuum packaging apparatus 300 is provided, and in this embodiment, as shown in fig. 4 to 7, the vacuum packaging apparatus 300 includes: the first support 310 is fixedly connected to the door body 200, the first support 310 is provided with a first open cavity 311, and the first open cavity 311 is communicated with the vacuum pump 330 through a first pipeline 370; the vacuum pumping device further comprises a second support 320 capable of moving linearly under the driving of a driving device 340, the second support 320 can move towards or away from the first support 310, the second support 320 is provided with a second open cavity 321, and after the second support 320 moves to a position close to the first support 3, the first open cavity 311 is in butt joint with the second open cavity 321 and sealed to form a vacuum pumping area 301.

The vacuum packaging device realizes the locking and unlocking of the first support 310 and the second support 320 by controlling the automatic lifting of the driving device 340, realizes the automatic vacuum packaging, and improves the intelligent degree of the refrigerator.

Specifically, as shown in fig. 7, a pressure sensor 305 is further disposed on the pipeline or the vacuum pump 330, and the pressure sensor 305 is configured to control the vacuum pump 330 to stop when detecting that the pressure in the vacuum-pumping region reaches a set negative pressure value. The vacuum degree of the vacuum-pumping area 301 can be controlled by arranging the pressure sensor 305, and the vacuum pump 330 can be switched on and off according to the detection value of the pressure sensor 305, so that the vacuum-pumping effect is ensured.

Specifically, in order to improve the sealing performance of the vacuum-pumping region 301, as shown in fig. 5, the first support 310 is provided with a first sealing groove 313 on the periphery of the first open cavity 311, the second support 320 is provided with a second sealing groove 323 on the periphery of the second open cavity 321, and the first sealing groove 313 is opposite to the second sealing groove 323 and is provided with a sealing ring 350 inside. The two sealing rings disposed in the first sealing groove 313 and the second sealing groove 323 seal the vacuum-pumping region 301 inside, which realizes reliable sealing of the vacuum-pumping region 301.

Wherein, the installation position of the vacuum pump 330 is not unique; in the present embodiment, as shown in fig. 7, the vacuum pump 330 is mounted outside the door 200; specifically, a vacuum pump installation cavity 314 is formed on one side surface of the first support 310 close to the door body 200; the vacuum pump 330 is located in the vacuum pump installation cavity 314, a through hole communicated with the first opening cavity 311 is formed in one side wall of the vacuum pump installation cavity 314, and the vacuum pump 330 is communicated with a pipe joint inserted in the through hole through a first pipeline 370. The vacuum pump 330 is mounted on the outer side of the door 200, so that the effective storage space of the refrigerator can be saved, and the vacuum pump can be hidden in the vacuum pump mounting cavity 314 of the first support 310, so that the whole vacuum packaging device 300 has good integrity.

The vacuum packaging apparatus 300 further comprises an automatic pressure relief device, the automatic pressure relief device comprises an electric pressure relief valve (not shown in the figure) arranged on the first pipeline 370, and after the vacuum pump 330 stops working, the electric pressure relief valve is controlled to be opened to relieve the pressure in the vacuum pumping region 301. Through setting up above-mentioned electronic relief valve can carry out the pressure release in this evacuation district 301 of automatic control after evacuation and encapsulation operation are accomplished, convenience of customers takes out the storing bag.

As shown in fig. 9/11, the vacuum sealing apparatus 300 further includes a sealing area 302 located outside the vacuum-pumping area, the sealing area 302 is used for performing plastic sealing treatment on the storage bag after the vacuum-pumping is finished, and the sealing area 302 is provided with an insulating door seal 322 and a heating apparatus 304 which are oppositely arranged; specifically, the heating device 304 is a heating wire, which is installed in a groove on the upper surface of the first support 310; the heat insulation door seal 322 is installed in a groove on the lower surface of the second support 320; after the second support 320 is moved to form a sealed evacuated region, the insulating door seal 322 in the encapsulation region 302 is placed against the heating device 304. After the evacuation is completed, the storage bag can be rapidly sealed in a plastic mode through the heating device 304 in the sealing area, and after the working time of the heating device 304 is set, the driving device is controlled to drive the second support 320 to move upwards, so that a user can draw out the storage bag.

The driving device can be an electric driving device or a pneumatic driving device; in order to make the driving device occupy a small space, specifically, the driving device 340 includes a linear motor 341, and an output shaft of the linear motor 341 is connected to the second support 320; the output shaft of the linear motor 341 is not exclusively connected to the second mount 320. In this embodiment, the second support 320 is provided with a hinged support, and an output shaft of the linear motor 340 is connected to the hinged support through a hinge shaft. Compared with the rotating motor, the output shaft of the linear motor 341 can directly drive the second support 320 to move linearly.

In order to accurately control the moving displacement of the second support 320, whether the second support 320 moves to the position is judged, so that the vacuumized area forms a sealed space; the vacuum packaging apparatus 300 further comprises a position detection apparatus 303; the specific structure of the position detecting device 303 is not unique, and in one embodiment, the position detecting device 303 may be integrated with the linear motor, that is, it is determined whether the second support 320 moves in place through the stroke of the linear motor; in another embodiment, as shown in fig. 9, a micro switch 303 is disposed on the first support 310 or the second support 320; after the second support 320 moves to the right position, the protrusion 320a on the second support triggers the micro switch 303, and the controller controls the driving device to stop and lock at the current position according to the feedback signal of the micro switch 303.

Specifically, the linear motor is fixed to the door body 200 or the first holder 310. Specifically, as shown in fig. 5, the first support 310 includes a base 315 and a mounting wall 316, the first open cavity 31 is formed on the base 315, the mounting wall 316 is provided with a mounting hole for connecting with the door 200, and the mounting wall 316 is further provided with an extending wall 3161 for fixing the driving device 340.

As shown in fig. 5-6, since the driving device is generally disposed at the middle position of the second support 320, in order to avoid the second support 320 from shifting left and right due to the shaking caused by the driving device, a guiding structure is disposed between the first support 310 and the second support 320, and the guiding structure is used for guiding the moving direction of the second support 320. The guide structure includes a dovetail groove 324 formed on the second mount 320, and a dovetail protrusion 318 formed on the first mount 310, the dovetail protrusion 318 being engaged with the dovetail groove 324. The above-mentioned guiding structure can make the second support 320 always keep the same relative position with the first support 310 when moving.

In order to maintain the overall aesthetic property of the outer surface of the refrigerator door and the convenience of applying the vacuum packaging device, as shown in fig. 3, the door shell 210 is provided with a mounting cavity 211, and the vacuum packaging device 300 is mounted in the mounting cavity 211; the door body structure further comprises an operation panel 260 covering the outer side of the installation cavity 211, the operation panel 260 is flush with the main body part of the door body shell 210, an insertion port 261 is formed in the operation panel 260, and the extending direction of the insertion port 261 is flush with the upper surface of the first opening cavity 310. Thus, the vacuum packaging device 300 can be hidden behind the operation panel 260, and the overall appearance of the refrigerator is maintained. When the user applies the vacuum packaging apparatus 300, the bag opening can be directly inserted from the insertion port 261 of the operation panel 260 and directly extended to the upper surface of the first open chamber 310, and when the second holder 320 is moved downward, the bag opening can be placed in the vacuum-pumping region 301. Specifically, the operation panel 260 is detachably connected to the door body casing 220, and in one embodiment, the operation panel 260 is connected to a side wall of the installation cavity 211 through a snap structure; this way the integrity of the refrigerator appearance can be maintained. In another embodiment, the operation panel 260 is configured as a bar door, that is, the lower end is connected to the lower wall of the installation cavity, and the upper end is connected to the installation cavity through a push switch. The bar counter door is arranged in a way that a user can directly insert the storage bag through the inserting port 261 to carry out vacuum packaging treatment in a state that the bar counter door is closed, and can also carry out vacuum packaging treatment after the storage bag with food is placed on the bar counter door in a state that the bar counter door is opened; meanwhile, the vacuum packing apparatus 300 may be cleaned or maintained in a state where the bar door is opened.

The operation panel 260 is further provided with a display and control device 270, and the display and control device 270 comprises an indicating device for displaying the working state of the vacuum packaging device; and a control button for controlling the starting or stopping of the vacuum packaging device. The user can determine whether the bag can be drawn out according to the operating state of the vacuum packaging device displayed by the indicating device.

When the user applies the vacuum packaging device 300, the storage bag to be packaged is inserted through the insertion port 261 arranged on the operation panel 260, after the insertion is in place, the linear motor is started to control the second support 320 to descend until the second support 320 moves in place (the vacuumized area is sealed), the micro switch 303 is triggered, and the controller controls the driving device to stop and lock at the current position according to a feedback signal of the micro switch 303, as shown in fig. 10/11; at this time, the indication device 271 on the operation panel 260 indicates that the user can turn on the vacuum pump; a user triggers a starting button 272 to control the vacuum pump 330 to start, so as to vacuumize the vacuumizing area 301, and the storage bag realizes vacuumizing through a storage bag opening in the vacuumizing area 301; when the pressure sensor 305 detects that the pressure value reaches the set negative pressure value, controlling the vacuum pump 330 to stop and simultaneously start the heating device 304 to work, and after the heating device 304 works for the set time, controlling the electric pressure relief valve 390 to start; then controlling the linear motor to start and control the second support 320 to ascend until the first open cavity 311 and the second open cavity 321 are separated, as shown in the states of fig. 8-9; the indication device 271 on the operation panel 260 indicates that the user can draw out the storage bag, and the vacuum packaging of the storage bag is completed.

As shown in fig. 12 to 14, the second embodiment of the vacuum sealing apparatus 300 is basically the same as the first embodiment in terms of the structure, and the differences are the specific structure of the driving apparatus and the installation position of the vacuum pump 330 in the present embodiment.

As shown in fig. 12 and 13, the driving device 340 includes a rotating electrical machine 342 and a transmission mechanism, the transmission mechanism includes a first transmission seat 343 fixed to an output shaft of the rotating electrical machine 342 and a second transmission seat 344 fixed to the second support 320, and a contact surface between the first transmission seat 343 and the second transmission seat 344 is a cam surface. A reset element 345 is further disposed between the first holder 310 and the second holder 320, and the reset element 345 provides a reset force to the second holder 320 away from the first holder 310. Specifically, the reset element 345 is a compression spring, two guide shafts 346 are arranged on two sides of the first support 310, and the axial direction of the guide shafts 346 is consistent with the moving direction of the second support 320; the compression spring is sleeved on the guide shaft 346, and the second support 320 is provided with a through hole penetrating through the guide shaft 346. In order to make the whole module more beautiful and prevent the rotating motor 342 from being exposed, the module further comprises a motor mounting cover 347 covering the rotating motor 342.

Thus, when the rotating motor 342 is controlled to rotate along the first direction, the output shaft thereof drives the first transmission seat 343 to rotate along the first direction, and the cam surface of the first transmission seat 343 cooperates with the cam surface of the second transmission seat 344 to move the second transmission seat 344 down; when the rotating motor 342 is controlled to rotate in a second direction (the first direction is opposite to the second direction), the output shaft of the rotating motor drives the first transmission seat 343 to rotate in the second direction, the cam surface of the first transmission seat 343 is disengaged from the cam surface of the second transmission seat 344, and the second transmission seat 344 moves in a direction away from the first support 310 under the action of the reset element 345, so that the first support 310 is separated from the second support 320.

In this embodiment, the driving device 340 controls the second support 320 to ascend and descend in a manner that a cam transmission mechanism is driven by a rotating motor which is most commonly used; the cost is low; meanwhile, the slope of the cam surface may be set as desired to control the ascending and descending speed of the second prop 320, for example, when a locking operation is performed, the slope of the cam surface may be controlled to control the second prop 320 to descend rapidly in an initial stage, and the second prop 320 may be controlled to descend slowly when approaching the first prop 310.

In the present embodiment, as shown in fig. 14, the vacuum pump 330 is mounted inside the door 200; specifically, the door body inner container 220 is provided with a vacuum pump installation cavity 221; the vacuum pump 330 is positioned in the vacuum pump installation cavity 221; in order to maintain the interior of the storage chamber 100 beautiful, a sealing plate (not shown) covering the vacuum pump installation cavity 221 is further provided on the door body inner container 220, and the sealing plate is detachably connected to the door body inner container 220. The vacuum pump 330 is arranged on the inner side of the door body 200, so that the noise of the vacuum packaging device during working is reduced, and the user experience is better.

Since the vacuum pump 330 exhausts air to the outside during operation, when the vacuum pump 330 is disposed in the storage chamber 100, the exhausted air may affect the cooling effect of the storage chamber 100, and therefore, the exhaust port 331 of the vacuum pump 330 needs to be communicated with the outside of the storage chamber 100; specifically, as shown in fig. 14, an exhaust port 331 of the vacuum pump 330 is communicated with the outside of the door body 100 through a second pipeline 380; the second conduit 380 includes a bladder section and an insulating interval; a pipe joint is arranged in the vacuum pump installation cavity 221; one end of the inner container section is connected with the exhaust port 331 of the vacuum pump 330, and the other end of the inner container section is connected with the pipe joint; one end of the heat insulation layer section is communicated with the pipe joint, and the other end of the heat insulation layer section penetrates through the upper end cover 230 or the lower end cover 240 of the door body 200.

Fig. 15 to 31 show a third embodiment of the refrigerator according to the present invention, in which, as shown in fig. 17/18, the vacuum sealing apparatus 300 includes: the first support 310 is fixedly connected to the door body 200, the first support 310 is provided with a first open cavity 311, and the first open cavity 311 is communicated with the vacuum pump 330 through a first pipeline 370; the vacuum pumping device further comprises a second support 320 hinged on the first support 310, wherein the second support 320 is provided with a second open cavity 321, the second support 320 rotates towards the direction close to the first support 310 until the first open cavity 311 is in butt joint with the second open cavity 321 and is positioned through a locking mechanism, and the first open cavity 311 is in butt joint with the second open cavity 321 and is sealed to form the vacuum pumping area 301.

The manual locking mode of the vacuum packaging device is adopted, the cost is low, the mechanical structure is used for locking, and the action reliability is high.

Specifically, as shown in fig. 21, a pressure sensor 305 is further disposed on the first pipeline 370 or the vacuum pump 330, and the pressure sensor 305 is configured to control the vacuum pump 330 to stop when detecting that the vacuum-pumping region pressure reaches a set negative pressure value. The vacuum degree of the vacuum-pumping area 301 can be controlled by arranging the pressure sensor 305, and the vacuum pump 330 can be switched on and off according to the detection value of the pressure sensor 305, so that the vacuum-pumping effect is ensured.

Specifically, in order to improve the sealing performance of the vacuum-pumping region 301, as shown in fig. 20/23, the first support 310 is provided with a first sealing groove 313 on the outer periphery of the first open cavity 311, the second support 320 is provided with a second sealing groove 323 on the outer periphery of the second open cavity 321, and the first sealing groove 313 is opposite to the second sealing groove 323 and is provided with a sealing ring 350 inside. The two sealing rings disposed in the first sealing groove 313 and the second sealing groove 323 seal the vacuum-pumping region 301 inside, which realizes reliable sealing of the vacuum-pumping region 301. As shown in fig. 20 and 22, the locking mechanism includes a first locking hook 319 disposed on the first support 310, and a second locking hook 329 disposed on the second support 320; the first locking hook 319 is matched with the second locking hook 329 to realize locking. The locking of the first support 310 and the second support 320 is realized reliably by means of hooking.

The arrangement positions of the first locking hook 319 and the second locking hook 329 in the locking mechanism are not unique, and as one implementation manner, the first locking hook 319 and the second locking hook 329 are respectively arranged at the front sides of the first support 310 and the second support 320; when the user turns the second support 320 downward, the first locking hook 319 and the second locking hook 329 are locked together, so that the first support 310 is locked with the second support 320.

Since the vacuum-pumping region is generally long for accommodating various sizes of bags to be sealed by the vacuum sealing apparatus, the front locking method may cause the first holder 310 and the second holder 320 to be tilted up. Therefore, the first locking hooks 319 and the second locking hooks 329 of the locking mechanism are preferably disposed at both sides of the first holder 310 and the second holder 320 as shown in fig. 20 and 22, and since the locking mechanism is disposed at both sides of the first holder 310 and the second holder 320, the second holder 320 is conveniently locked by a user.

As shown in fig. 22 and 24, the locking mechanism further includes a driving portion, the driving portion includes a driving shaft 325 rotatably connected to the second support 320, and a driving handle 326 fixedly connected to the driving shaft 325, the driving shaft 325 is fixedly connected to the second locking hook 329, and a user drives the second locking hook 329 to rotate relative to the second support 320 by rotating the driving handle 326. The driving handle 326 is arranged in the middle of the second support 320, so that on one hand, the operation of a user is facilitated, and on the other hand, the transverse space of the vacuum packaging device is saved compared with the transverse space arranged on the left side and the right side, and the vacuum packaging device is suitable for being installed on the refrigerator door body 200 with the limited width.

In order to further improve the locking reliability, as shown in fig. 22 and 24, a torsion spring 306 is further disposed between the driving handle 326 and the second support 320, a torsion force of the torsion spring 306 is suitable for keeping the driving handle 326 in a locked state, specifically, a torsion spring mounting seat is disposed on the second support 320, a groove for inserting a support arm of the torsion spring is formed on the torsion spring mounting seat, an insertion hole is formed on the driving handle 326, and another support arm of the torsion spring 306 is inserted into the insertion hole.

Specifically, as shown in fig. 20, the first seat includes a first seat body 312, and the first open cavity 311 is formed on the first seat body 312, specifically, at a position behind the middle of the first seat body 312; the support further comprises first support arms 317 positioned on two opposite sides of the first support body 312, the first support arms 317 extend towards the direction approaching the second support 320, and the two first support arms 317 are respectively provided with the first locking hooks 319.

As shown in fig. 22 and 23, the second support 320 includes a second support body 327, and the second open cavity 321 is formed on the second support body 327, specifically, at a position behind the middle of the second support body 327; the support further comprises second support arms 328 positioned on two opposite sides of the second support body 327, the second support arms 328 extend in a direction away from the first support 310, the driving shaft 325 is arranged on the two second support arms 328 in a penetrating manner, and two ends of the driving shaft 325 are respectively connected with the second locking hooks 329.

Fig. 29-31 show the operation of the locking device. When the vacuum pumping is performed, as shown in fig. 29, when the driving handle 326 rotates to be parallel to the upper surface of the second support 320, the second locking hook 329 hooks the first locking hook 319, so that the first support 310 is locked with the second support 320; when the driving handle 326 rotates in the opposite direction to be perpendicular to the upper surface of the second support 320 after the vacuum pumping is completed, the second locking hook 329 is separated from the first locking hook 319, and the first support 310 is unlocked from the second support 320; the second support 320 continues to rotate until the second latch 329 engages the protrusion on the first leg 317, causing the second support 320 to hover to the set position.

Specifically, as shown in fig. 20, a support lug 3171 is further disposed on the first support arm 317, an installation hole is disposed on the support lug 3171, and the first support 310 is installed on the door body 200 through a bolt penetrating through the installation hole.

Because after the evacuation district is in negative pressure state, opens the second support is more difficult, consequently, vacuum packaging hardware 300 still includes manual pressure relief device 360, manual pressure relief device 360 with evacuation district 301 intercommunication is used for right evacuation district 301 pressure release. By arranging the manual pressure relief device, the vacuumizing area 301 can be automatically controlled to relieve pressure after vacuumizing and packaging operations are completed, and a user can take out the storage bag conveniently.

Specifically, as shown in fig. 24, the manual pressure relief device 360 is disposed on an outer side wall of the second seat 320, and includes a pressure relief hole 361 communicated with the second open cavity 321, a sealing plug 362 sealing the pressure relief hole 361, and a trigger mechanism controlling the sealing plug 362 to open or seal the pressure relief hole 361.

As shown in fig. 24, the triggering mechanism includes a hinge seat 363 fixed to the outer side wall of the second support 320, and a triggering body 364 whose middle part is hinged to the hinge seat through a hinge shaft, and both ends of the triggering body 364 are respectively provided with a triggering part 365 and the sealing plug 362; after the trigger 365 is triggered, the trigger body 364 rotates around the hinge shaft, and the sealing plug 362 rotates upwards to open the pressure relief hole 361; a reset piece 366 is further included, and the elastic force of the reset piece 366 rotates the sealing plug 362 downwards to seal the pressure relief hole 361. After the vacuum pumping is completed, the user can manually trigger the trigger 365 to make the trigger body 364 rotate around the hinge shaft, and the sealing plug 362 rotates upwards to open the pressure relief hole 361, so as to realize the pressure relief of the vacuum pumping area 301.

In order to further improve the operation convenience of the user, a linkage structure is provided between the locking mechanism and the triggering mechanism, and the linkage structure is used for cooperating with the triggering portion 365 when the driving shaft 325 rotates to the unlocking position, so that the sealing plug 362 opens the pressure relief hole 361. Namely, the user can trigger the manual pressure relief device to directly relieve pressure while unlocking the second seat 320. The user experience is better.

Specifically, as an embodiment, the linkage structure includes an extension arm formed on the driving handle 326, and the extension arm extends to the triggering portion 365.

In another embodiment, as shown in fig. 24, the linkage structure includes a swing arm 367 fixed to the drive shaft 325, the swing arm 367 includes a swing arm body fixed to the drive shaft 325 and a extension arm for engaging the trigger 365.

In this embodiment, the installation position of the vacuum pump 330 is not unique; in one embodiment, as shown in fig. 21, the vacuum pump 330 is installed outside the door body 200; specifically, a vacuum pump installation cavity 314 is formed on one side surface of the first support 310 close to the door body 200; the vacuum pump 330 is located in the vacuum pump installation cavity 314, a through hole communicated with the first opening cavity 311 is formed in one side wall of the vacuum pump installation cavity 314, and the vacuum pump 330 is communicated with a pipe joint inserted in the through hole through a first pipeline 370. The vacuum pump 330 is mounted on the outer side of the door 200, so that the effective storage space of the refrigerator can be saved, and the vacuum pump can be hidden in the vacuum pump mounting cavity 314 of the first support 310, so that the whole vacuum packaging device 300 has good integrity.

In order to maintain the overall aesthetic property of the outer surface of the refrigerator door and the convenience of applying the vacuum packaging device, as shown in fig. 16, the door shell 210 is provided with a mounting cavity 211, and the vacuum packaging device 300 is mounted in the mounting cavity 211; the door further comprises an auxiliary door plate 280 hinged to one side edge of the mounting cavity 211; a locking structure is arranged at the edge of the other side of the auxiliary door plate 280 and the mounting cavity 211; after the auxiliary door panel 280 is locked and positioned with the mounting cavity 211, the outer surface of the auxiliary door panel 280 is flush with the main body part of the door body shell 210. Thus, the vacuum sealing apparatus 300 can be hidden behind the sub-door 280, and the integrity of the refrigerator appearance is maintained. When the user applies the vacuum packaging apparatus 300, the sub-door 280 is opened to operate.

In order to further improve the convenience of the user, as shown in fig. 16, the sub-door 280 is in the form of a bar counter door, specifically, the sub-door 280 is hinged to the lower sidewall of the installation cavity 211, and when the sub-door 280 is opened to be perpendicular to the door shell 210, a part of the panel surface of the sub-door 280 is supported on the lower sidewall of the installation cavity 211; the locking structure is a push switch 290 installed on the sub-door 280 and the upper side of the installation cavity 211.

A display control panel 212 is further arranged in the mounting cavity 211, and the display control panel 212 comprises a panel body 2121, and an indicating device 271 and a control button 272 which are arranged on the panel body 2121; the indicating device 271 is used for displaying the working state of the vacuum packaging device; the control button 272 is used for controlling the vacuum packaging device to start and stop.

When the user uses the vacuum packaging apparatus 300, the sub-door 280 is opened first, and the storage bag to be packaged is placed on the upper side of the sub-door 280; pulling the driving handle 326 to unlock the second holder 320 from the first holder 310, opening the second holder 320 and inserting the opening of the bag into place, rotating the second holder 320 to close the first holder 310, and pulling the driving handle 326 to lock the second holder 320 to the first holder 310, as shown in fig. 29; at this time, the user triggers a start button 272 on the display control panel 212 to control the vacuum pump 330 to start, so as to vacuumize the vacuumized area 301, and the storage bag is vacuumized through an opening of the storage bag located in the vacuumized area 301; when the pressure sensor 305 detects that the pressure value reaches the set negative pressure value, the vacuum pump 330 is controlled to stop and the heating device 304 is started to work, after the heating device 304 works for the set time, the indicating device 271 on the display control panel 212 indicates that the work is completed, and the user pulls the driving handle 326 again to unlock the second support 320 and the first support 310, as shown in the state shown in fig. 30; the second support 320 is opened, and the bag is completely vacuum sealed as shown in fig. 31, and the bag is drawn out.

Fig. 32 and 33 show a fourth embodiment of the refrigerator according to the present invention, in which a socket of a vacuum sealing device is disposed in an inclined manner in order to prevent liquid in the storage bag from entering a vacuum region when the storage bag is horizontally placed for vacuum treatment; thus, the liquid in the pouch is located at the bottom of the pouch under the force of gravity and is not easily absorbed into the evacuated region 301.

Further, the opening angle of the bar door 280 provided at the outer side of the refrigerator door body is also inclined to make the storage bag in an inclined state.

The way of obliquely disposing the socket of the vacuum packaging apparatus is not exclusive, and specifically, in one embodiment, as shown in fig. 32, the mating surface of the first support 310 and the second support 320 is disposed with an inclined surface having a set angle with the horizontal direction. In another embodiment, as shown in fig. 33, the outer side surfaces of the first support 310 and the second support 320 are set to be inclined surfaces, the matching surface of the first support 310 and the second support 320 is set to be a horizontal surface, and the insertion port is set to be a transition surface perpendicular to the outer side surfaces of the first support 310 and the second support 320, because the storage bag passes through the transition surface and then is inserted into the vacuum-pumping region 301, and a transition bend is formed in the middle, the liquid is not easily sucked into the vacuum-pumping region 301.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. A refrigerator, comprising:

storeroom and open or close the door body of storeroom, its characterized in that:

be equipped with vacuum packaging device on the door body, vacuum packaging device includes:

the first support is fixedly connected to the door body and provided with a first opening cavity;

the second support is hinged to the first support and provided with a second open cavity;

the second support rotates towards the direction close to the first support until the first open cavity is in butt joint with the second open cavity, and the first support and the second support are locked through a locking mechanism;

a vacuumizing area is formed between the first opening cavity and the second opening cavity and is communicated with a vacuum pump through a first pipeline;

the locking mechanism includes:

the first lock hook is arranged on the first support, and the second lock hook is arranged on the second support, and the first lock hook and the second lock hook are matched to realize locking;

the driving part is used for driving the second lock hook to rotate relative to the second support; the driving part includes:

the driving shaft is rotatably connected to the second support, and the driving handle is fixedly connected to the driving shaft, and the driving shaft is fixedly connected with the second locking hook;

the two sides of the first support are both provided with first lock hooks, and the two sides of the second support are both provided with second lock hooks;

the vacuum packaging device also comprises a manual pressure relief device, and the manual pressure relief device is communicated with the vacuumizing area and is used for controlling the vacuumizing area to be communicated with the external atmosphere;

the manual pressure relief device is arranged on the outer side wall of the second support and comprises a pressure relief hole communicated with the second opening cavity, a sealing plug for sealing the pressure relief hole and a trigger mechanism for controlling the sealing plug to open or seal the pressure relief hole;

the trigger mechanism comprises a hinged seat fixed on the outer side wall of the second support and a trigger body hinged to the hinged seat through a hinged shaft at the middle part, and a trigger part and the sealing plug are respectively arranged at two ends of the trigger body;

after the trigger part is triggered, the trigger body rotates around the hinge shaft, and the sealing plug rotates upwards to open the pressure relief hole;

the elastic force of the reset piece enables the sealing plug to downwards rotate to seal the pressure relief hole;

a linkage structure is arranged between the locking mechanism and the trigger mechanism and is used for being matched with the trigger part when the driving shaft rotates to an unlocking position, so that the pressure relief hole is opened by the sealing plug;

the linkage structure is including being fixed in the epaxial swing arm of drive, the swing arm includes swing arm body and extension arm, the extension arm be used for with the cooperation of trigger part.

2. The refrigerator according to claim 1, wherein:

the first support comprises a first support body, the first open cavity is formed in the first support body, the first support arm is positioned on two opposite sides of the first support body, the first support arm extends towards the direction close to the second support, and the two first support arms are respectively provided with the first lock hooks;

the second support comprises a second support body, a second opening cavity is formed in the second support body, and the second support body further comprises second support arms located on two opposite sides of the second support body, the second support arms extend in the direction away from the first support body, and the driving shafts penetrate through the second support arms and are connected with the second lock hooks at two ends of the driving shafts respectively.

3. The refrigerator according to claim 2, wherein:

the first support arm is further provided with a support lug, the support lug is provided with a mounting hole, and the first support is arranged on the door body through a bolt penetrating through the mounting hole.

4. The refrigerator according to any one of claims 1 to 3, wherein:

the outer side wall of the door body is provided with an installation cavity, and the vacuum packaging device is installed in the installation cavity;

the door panel is hinged to the edge of one side of the installation cavity, and a locking structure is arranged at the edge of the other side of the installation cavity and the auxiliary door panel;

and after the auxiliary door plate is clamped and positioned with the mounting cavity, the outer surface of the auxiliary door plate is flush with the outer surface of the door body.

5. The refrigerator according to any one of claims 1 to 3, wherein:

a packaging area is arranged on the outer side of the vacuumizing area, and a heat insulation door seal strip positioned on one of the first support and the second support is arranged in the packaging area;

and the heating device is positioned on the other one of the first support and the second support, and the heat insulation door seal is arranged opposite to the heating device.

6. The refrigerator according to any one of claims 1 to 3, wherein:

the matching contact surface of the first support and the second support is an inclined surface which inclines downwards from the position close to the door body to the position far away from the door body; alternatively, the first and second electrodes may be,

the first support and the second support are arranged on the outer side of the packaging area, and the matching contact surface of the first support and the second support is an inclined surface which inclines downwards from the position close to the door body to the position far away from the door body.