CN210688865U - A kind of refrigerator - Google Patents

Abstract

The utility model discloses a refrigerator, the door body outside of refrigerator sets up vacuum packaging device, and it includes: the vacuum-pumping device comprises an upper support and a lower support, wherein the upper support and the lower support move to a cavity between the upper support and the lower support after being butted to form a vacuum-pumping area, and the vacuum-pumping area is communicated with a vacuum-pumping assembly; a bar counter door is arranged on the outer side of the door body in the area where the vacuum packaging device is located, and a door opening and closing detection device for detecting opening and closing of the bar counter door is arranged at the position, corresponding to the bar counter door, of the bar counter door; the control unit determines the opening or closing of the driving device and the electric signal of the vacuum pumping assembly according to the detection signal of the door opening and closing detection device. The refrigerator of the utility model can carry out vacuum packaging treatment on the storage bag filled with food materials, thereby enlarging the fresh-keeping range; the driving device and the electric signal of the vacuumizing assembly are controlled by the switch of the bar counter door, so that the energy conservation and the safety of the refrigerator are improved.

Description

A kind of refrigerator

Technical Field

The utility model relates to a the utility model belongs to the household electrical appliances field, in particular to 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 to-be-solved technical problem of the utility model is that current refrigerator is fresh-keeping effect unsatisfactory, and then proposes a cost lower, do not occupy the storage space and can all carry out fresh-keeping refrigerator to each regional edible material.

In order to solve the technical problem, the utility model discloses a refrigerator, the outside of the refrigerator door body sets up vacuum packaging device, vacuum packaging device includes: the door body is fixedly connected with the door body through one of the upper support and the lower support; the other one of the upper support and the lower support moves up and down under the driving of a driving device; the upper support and the lower support move to a cavity between the upper support and the lower support after the upper support and the lower support are in butt joint, so that a vacuumizing area is formed, wherein the vacuumizing area is communicated with a vacuumizing assembly; a bar counter door is arranged on the outer side of the door body in the area where the vacuum packaging device is located, and a door opening and closing detection device for detecting the opening and closing of the bar counter door is arranged at the position, corresponding to the door body, of the bar counter door; the door opening and closing detection device, the driving device and the vacuumizing assembly are respectively and electrically connected with the control unit, and the control unit receives a detection signal of the door opening and closing detection device and then sends a control signal to enable the electric signals of the driving device and the vacuumizing assembly to be opened or closed.

The technical scheme of the utility model prior art relatively has following technological effect:

the refrigerator of the utility model is provided with the vacuum packaging device on the door body, which can carry out vacuum packaging treatment on the storage bag which is about to be put into the refrigerator and is filled with food materials; compared with the existing vacuum drawer, the vacuum packaging device of the utility model can vacuumize and preserve food materials stored in various compartments of the refrigerator, thereby enlarging the preservation range; in addition, a bar counter door is arranged on the outer side of the door body in the area where the vacuum packaging device is located, and a door opening and closing detection device for detecting the opening and closing of the bar counter door is arranged at the position corresponding to the bar counter door and the door body; and the control unit determines the opening or closing of the driving device and the electric signal of the vacuumizing assembly according to the detection signal of the door opening and closing detection device. The power-off driving device can be powered off under the condition of closing the bar counter door, the energy-saving performance is good, and the potential safety hazard is avoided.

Drawings

The objects and advantages of the present invention will be understood from 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 refrigerator according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a refrigeration door body in embodiment 1 of the present invention;

fig. 3 is an exploded view of a refrigeration door body in embodiment 1 of the present invention;

FIG. 4 is an exploded view of the connection between the bar counter door and the door body according to embodiment 1 of the present invention;

FIG. 5 is a schematic view of the bar door and the damping device according to embodiment 1 of the present invention;

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

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

fig. 8 is a schematic structural view of the upper support of the vacuum packaging apparatus of the present invention in the forward and reverse directions;

fig. 9 is an assembly view of the upper support, the driving device and the vacuum pumping assembly in the vacuum packaging apparatus of the present invention;

fig. 10 is an exploded view of the upper support, the driving device and the vacuum pumping assembly in the vacuum packaging apparatus of the present invention;

FIG. 11 is a diagram showing a connection relationship between an upper support and a filtering container in the vacuum packaging apparatus of the present invention;

FIG. 12 is a diagram showing the connection relationship between the upper support and the filter net in the vacuum packaging apparatus of the present invention;

fig. 13 is an exploded view of the upper support, the heating device and the sealing ring of the present invention;

fig. 14 is a partial sectional view of the upper support of the present invention connected to a heating device;

fig. 15 is a schematic view of the connection relationship between the upper support and the driving device in the initial position of the present invention;

fig. 16 is a schematic view of the connection relationship between the upper support and the driving device in the lowered position of the present invention;

fig. 17A is a schematic structural view of a lower support, a heat-insulating small door and a door body in a locked state in embodiment 1 of the present invention;

fig. 17B is a schematic structural view of the lower support, the heat-insulating small door and the door body in an unlocked state in embodiment 1 of the present invention;

fig. 17C is a schematic structural view of the lower support and the heat-insulating small door removed from the door body in embodiment 1 of the present invention;

fig. 18 is a schematic view of the forward and reverse structures of the heat-insulating wicket and the lower support in the assembled state according to embodiment 1 of the present invention;

fig. 19 is an exploded view of the heat-insulating wicket, the lower support and the latch hook assembly in embodiment 1 of the present invention;

fig. 20 is a schematic structural view of the heat-insulating small door to which the latch assembly is mounted in embodiment 1 of the present invention;

fig. 21 is a partial sectional view of the latch hook assembly installed on the thermal insulating wicket in embodiment 1 of the present invention;

fig. 22 is a perspective view of the lower latch hook in embodiment 1 of the present invention;

fig. 23 is a schematic view of the forward and reverse structures of the upper latch hook in embodiment 1 of the present invention.

Detailed Description

The technical solution of the present invention will be clearly and completely described 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", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1 is a perspective view of a specific 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 a and an upper refrigerator compartment 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 storage compartment 100 and may be selectively covered by a drawer type freezing compartment door a. 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.

As shown in fig. 3 and 7, 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.

Fig. 7 to 23 show an embodiment of the vacuum packaging apparatus 300, and in this embodiment, as shown in fig. 7, the vacuum packaging apparatus 300 includes: the lower support 310 is provided with a first open cavity 311; the upper support 320 is provided with a second open cavity 321, the upper support 320 can move towards or away from the lower support 310 under the driving of a driving device 340, and after the upper support 320 moves to a position close to the lower support 310, the first open cavity 311 is in butt joint with the second open cavity 321 and sealed to form the vacuum-pumping region 301. The vacuum packaging device 300 realizes locking and unlocking of the lower support 310 and the upper support 320 by controlling automatic lifting of the driving device 340, realizes automatic vacuum packaging, and improves the intelligent degree of the refrigerator.

In other embodiments, the vacuum sealing apparatus 300 may further include an upper support 320 fixedly connected to the door body 200, and a driving device 340 drives the lower support 310 to move up and down to approach the upper support 320, so as to achieve the butt sealing between the upper support 320 and the lower support.

Specifically, in order to improve the sealing property of the vacuum-pumping region 301, as shown in fig. 7, a sealing portion for sealing the vacuum-pumping region 301 is provided on a surface of the lower support 310 opposite to the upper support 320. Specifically, the lower support 310 is provided with a first sealing groove 313 on the periphery of the first open cavity 311, the upper 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 and the second sealing groove 323 are opposite and are provided with a sealing ring 350 inside. The two sealing rings 350 arranged in the first sealing groove 313 and the second sealing groove 323 seal the vacuum-pumping region 301 on the inside, so that a reliable sealing of the vacuum-pumping region 301 is achieved.

Specifically, as shown in fig. 8, a position-limiting portion is disposed in the first open cavity 311 or the second open cavity 321, and is used for limiting an insertion position of the storage bag inserted into the vacuum-pumping area 301, so as to prevent an opening position of the storage bag from extending out of the vacuum-pumping area 301; specifically, the limiting part is a limiting rib 322 arranged in the first open cavity 311 or the second open cavity 321, and the height of the limiting rib 322 is greater than the depth of the first open cavity 311 or the second open cavity 321; the length of the limiting rib 322 is slightly less than the length of the first open cavity 311 or the second open cavity 321. When a user inserts the storage bag into the vacuum-pumping area 301, the limiting rib 322 can block the storage bag from being inserted inwards continuously; in other embodiments, the vacuum-pumping area 301 may further include an in-place detection device, specifically, a microwave sensor or an infrared sensor may be used to detect whether an object bag inserted into the vacuum-pumping area 301 exists, and further send a signal indicating whether the object bag is in place to the controller, and the controller may control the vacuum pump to be turned on according to the in-place signal. Whether the storage bag is in place or not can be automatically detected by arranging the in-place detection device, and the controller can further automatically control the on-off of the vacuum pump.

The vacuum packaging apparatus 300 further comprises a vacuum-pumping assembly 330, as shown in fig. 9 and 10, the vacuum-pumping assembly 330 comprises a vacuum pump 331 communicating with the vacuum-pumping region 301 through a pipeline 335; the pipeline 335 is further provided with a pressure detection device 332 and a pressure relief device 333, wherein the pressure detection device 332 is specifically a pressure sensor and is used for detecting the pressure in the vacuum-pumping region 301; the pressure relief device 333 is specifically an electric pressure relief valve, and when the electric pressure relief valve is opened, the vacuum-pumping region 301 is relieved. When a user carries out vacuum-pumping packaging, the vacuum pump 331 is started to carry out vacuum-pumping processing on the vacuum-pumping area 301, and when the pressure detection device 332 detects that the pressure of the vacuum-pumping area 301 reaches a set negative pressure value, the controller controls the vacuum pump 331 to stop. The vacuum degree of the vacuum-pumping area 301 can be controlled by arranging the pressure sensor, and the vacuum pump 331 can be switched on and off according to the detection value of the pressure sensor, so that the vacuum-pumping effect is ensured. After the vacuumizing and packaging operations are completed, the vacuumizing area 301 can be automatically controlled to be decompressed by opening the electric decompression valve, so that a user can take out the storage bag conveniently. In order to prevent the foreign matters in the vacuuming region 301 from entering the vacuum pump 331 through the pipeline 335, the pipeline 335 further includes a filter protection device, in one embodiment, as shown in fig. 11, the filter protection device is specifically a filter container 334 connected in series on the pipeline 335, an inlet and an outlet are provided at an upper end of the filter container 334, the inlet is communicated with the vacuuming region 301 through a pipeline, and the outlet is communicated with the vacuum pump 331 through a pipeline; foreign matters in the vacuuming zone 301 enter the filter container 334 through the pipeline 335 and remain at the bottom of the filter container 334, so that the foreign matters are prevented from entering the vacuum pump 331. In order to clean the filtering container 334 conveniently, more specifically, the filtering container 334 comprises a tank body with an opening and an upper cover detachably connected to the tank body, the upper cover is provided with the inlet and the outlet, the tank body can be detached for cleaning during cleaning, and the problem that the pipeline 335 is poor in sealing performance due to frequent disassembly and assembly of the pipeline 335 is solved.

In another embodiment, as shown in fig. 12, the filter protection device is a filter screen 336 disposed on the pipeline 335, and specifically, for convenience of assembly and disassembly, the filter screen 336 is disposed at a position of the vent hole 324 at a position where the upper support 320 is connected to the pipeline 335, and after a user moves the upper support 320 to a highest position, the filter screen 336 can be assembled and disassembled from a lower side or cleaned.

The connecting hole between the vacuum-pumping region 301 and the pipeline 335 may be one, and certainly, in order to avoid vacuum-pumping failure caused by foreign matters blocking the connecting hole in the vacuum-pumping region 301 when a single connecting hole is used, the pipeline 335 may be connected in parallel by arranging two or more connecting holes to be respectively connected with the pipeline 335, and connected with a main pipe by a three-way or multi-way connector; wherein, the pressure sensor and the electronic pressure relief valve are arranged on the main pipe.

As shown in fig. 7, the vacuum packaging apparatus 300 further includes a packaging region 302 located outside the vacuum-pumping region 301, the packaging region 302 is used for performing plastic packaging treatment on the storage bag after vacuum-pumping is finished, and a heat insulation pad 360 and a heating apparatus 370 are arranged in the packaging region 302 in an opposite manner; specifically, the heating device 370 is mounted in a groove on the lower surface of the upper support 320; the heat insulation pad 360 is installed in a groove on the upper surface of the lower support 310 of the upper support 320; after the upper support 320 is moved into the evacuated region 301, which forms a seal with the lower support 310, the insulation mat 360 within the encapsulated region 302 rests against the heating device 370. After the vacuum pumping is completed, the storage bag can be rapidly plastic-sealed through the heating device 370 in the packaging area 302, and after the set time length of the heating device 370 is set, the driving device 340 is controlled to drive the upper support 320 to move upwards, so that a user can draw out the storage bag to complete the plastic sealing of the storage bag.

More specifically, as shown in fig. 13 and 14, the heating device 370 includes a heating wire 371, a heat conducting plate 373 is disposed below the heating wire 371, and the heating area of the heating wire 371 is used for diffusing the heat conducting plate 373 to increase the plastic packaging area of the storage bag, so that the plastic packaging is firm. The heater strip 371 is followed the length direction of upper bracket 320 extends and the upper bracket 320 both sides are upwards bent, heater strip 371 extends to the free end of upper bracket 320 upside is fixed in through an insulation board 372 on the upper bracket 320, specifically, insulation board 372 is made for insulating material, and the shaping is the board of bending, the cladding in the outside of heater strip 371 avoids heater strip 371 to expose in the outside. Furthermore, two free ends of the heating wire 371 are respectively connected with two wires led out through the wiring terminal 374 through the spring 375; the heating wire 371 can be always in a tensioned state by arranging the spring 375, so that the flatness of the heating wire 371 is high, and the heat conduction plate 373 positioned at the lower side of the heating wire 371 is tightly contacted with a storage bag; the problem that the heating wire 371 is uneven, so that the contact of individual positions is not solid and plastic cannot be sealed is solved.

In the vacuum pumping plastic package, the driving device 340 may be an electric driving device or an air pressure driving device; the pneumatic driving device occupies a large space, and therefore, in this embodiment, the driving device 340 is an electric driving device. Specifically, as shown in fig. 10, 15 and 16, the driving device 340 includes a motor 341 and a transmission mechanism, the transmission mechanism is configured to convert the rotational motion of the motor into a linear motion, and an output end of the transmission mechanism is connected to the upper support. The transmission mechanism comprises a first gear 342 fixedly connected to the output shaft of the motor; a second gear 343 meshed with the first gear 342; a third gear 344 fixedly connected with the second gear 343, and an output rack 345 engaged with the third gear 344, wherein a pin hole is formed at a lower side of the output rack 345, and the upper support 320 and the output rack 345 are connected by a pin 346 inserted into the pin hole. Through the above-mentioned transmission mechanism, the rotation of the motor 341 is converted into the up-and-down movement of the upper support 320.

Specifically, as shown in fig. 10, a connecting plate 347 is disposed between the upper support 320 and the driving device 340, 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, the lower ends of the guide groove 3471 and the output rack 345 are respectively provided with a long-strip-shaped pin hole, the pin 346 is inserted into the pin holes of the guide groove 3471 and the output rack 345, a gap is formed between the lower end surface of the output rack 345 and the bottom of the guide groove 3471, and an elastic body 348 is disposed in the gap.

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

In the vacuum-pumping stage, the sealed vacuum-pumping region 301 formed between the lower support 310 and the upper support 320 moves downward under the action of atmospheric pressure due to the low air pressure, and at this time, when the upper support 320 moves downward due to the existence of the elongated pin hole, the output rack 345 remains in place, thus protecting the entire driving device 340.

In order to accurately control the moving displacement of the upper support 320, whether the upper support 320 moves to the position is judged, so that the vacuum-pumping area 301 forms a sealed space; in an embodiment, the motor 341 is a stepping motor 341, and whether the upper support 320 moves in place is determined by detecting a rotation stroke of the stepping motor 341. In another embodiment, a micro switch is disposed on the lower support 310 or the upper support 320; after the upper support 320 moves to the right position, the controller controls the driving device 340 to stop and lock at the current position according to a feedback signal of the micro switch by triggering the micro switch.

The driving device 340 can be provided as a single device, and the output gear is located in the middle area of the upper support 320, which is likely to cause the marginal area of the upper support 320 to be not tightly fitted with the lower support 310, resulting in air leakage of the vacuuming area 301; therefore, in order to provide the sealing performance of the vacuum-pumping region 301, the driving devices 340 are respectively disposed at both sides of the upper support 320. Correspondingly, one connecting plate 347 is provided, and the two guide grooves 3471 are provided on the connecting plate 347; the two output racks 345 respectively extend into the guide grooves 3471.

Specifically, as shown in fig. 9 and 10, the driving device 340 and the vacuum assembly 330 are mounted on the mounting seat 305 located on the upper side of the upper support 320. The upper support 320 is provided with a vent hole 324 for communicating with the vacuum pumping assembly 330. One side of the mounting base 305 is provided with three chambers, which include a vacuum pump mounting cavity 3051 located at the middle position and driving device mounting cavities 3052 located at the left and right sides. In order to maintain the overall aesthetic property of the outer surface of the refrigerator door 200 and the convenience of applying the vacuum packaging device 300, as shown in fig. 3, the door shell 210 is provided with an inwardly recessed mounting cavity 211, the driving device 340 is connected with the upper support 320 and then connected to the mounting base 305 through screws, the vacuum pumping assembly 330 is connected with the vent holes 324 on the upper support 320 and then mounted on the mounting base 305, after an assembly is formed, the assembly is integrally mounted in the mounting cavity 211 through screws penetrating through lugs on two sides of the mounting base 305, the modular assembly of each part is realized, each part is not exposed on the outer surface, and the integrity of the device is better.

When a user uses the vacuum packaging device 300 to carry out plastic packaging on a food bag, particularly when powdery food such as flour or liquid is subjected to plastic packaging, the powder or the liquid may enter the vacuum-pumping region 301 during vacuum-pumping 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 detachably mounted with respect to the door body 200.

The manner of attaching the lower holder 310 to the door body 200 is not exclusive, and in the present embodiment, as shown in fig. 17A to 17C, the lower holder 310 may be detachably attached to the door body 200 from the inner side (i.e., the side having the inner container) of the door body 200. Since the door 200 of the refrigerator must ensure heat insulation, the lower holder 310 is provided with a heat-insulating small door 250 toward an inner portion of the storage chamber 100. As shown in fig. 17C, the door body 200 is provided with a mounting hole 201 communicating the inside and the outside, and the lower holder 310 and the heat-insulating small door 250 are inserted into the mounting hole 201 from the inside of the door body 200, so that the disassembly and cleaning of the lower holder 310 and the heat-insulating performance of the door body 200 are realized.

In one embodiment, as shown in fig. 18, the lower support 310 is integrally formed with the heat-insulating wicket 250; as shown in fig. 19 and 20, the lower holder 310 and the heat-insulating wicket 250 are formed by a first housing 251 and a second housing 252 having an open cavity structure and a heat insulator disposed between the first housing 251 and the second housing 252. The first housing 251 is connected with the second housing 252 in a snap-fit manner, an extension arm 2511 is disposed in the first housing 251 in a direction away from the second housing 252, the lower support 310 is formed on the extension arm 2511, the first opening cavity 311 is an opening groove formed on the upper side of the extension arm 2511, and a first sealing groove 313 is disposed on the periphery of the opening groove.

In order to further ensure the heat insulation of the door body 200 and prevent the cold leakage through the gap between the mounting hole 201 and the small heat-insulating door 250, as shown in fig. 19 and 20, a small door seal 253 is provided between the small heat-insulating door 250 and the door body inner 220. Specifically, a support arm 2512 is arranged at a position where the first housing 251 is matched with the door body inner container 220, and the size of the support arm 2512 is larger than that of the mounting hole 201. The support arm 2512 is provided with a mounting groove surrounding the mounting hole 201, and the small door seal 253 is mounted in the mounting groove.

Specifically, in order to ensure that the small heat-preservation door 250 is reliably fixed to the door body 200, a locking device 400 is arranged between the small heat-preservation door 250 and the door body inner container 220, and the locking device 400 is used for locking or unlocking the small heat-preservation door 250 to the door body 200.

As shown in fig. 17A to 17C, 18, and 19, the locking device 400 includes: set up and be in latch hook subassembly on the little door 250 that keeps warm, and set up locking groove 221 on the internal container 220 of door, the latch hook subassembly is including wearing to locate latch hook on the little door 250 that keeps warm, the latch hook can be in primary importance and second position conversion, the latch hook can with locking groove 221 cooperation is realized when primary importance the locking of little door 250 that keeps warm, the latch hook when the second place with locking groove 221 breaks away from, realizes the unblock of little door 250 that keeps warm.

Specifically, in order to improve the reliability of the locking device 400, two locking grooves 221 and two locking hooks are respectively provided, wherein the locking grooves 221 are located at upper and lower sides of the mounting hole 201. As shown in fig. 18-23, the latch hook assembly includes upper and lower latch hooks 420 and 410 and a return spring 430. As shown in fig. 22, the lower locking hook 410 includes a hooking portion 414 engaged with the locking groove 221 on the lower side, a hinge portion 412 rotatably connected to the thermal door 250, and a handle portion 411 positioned on the lower side of the thermal door 250, wherein the handle portion 411 and the hooking portion 414 are respectively positioned on both sides of the hinge portion 412. The lower latch hook 410 further includes a lower connection part 413 connected to the upper latch hook 420, wherein the lower connection part 413 extends above the handle part 411. Specifically, an end of the lower connection part 413 is formed as a T-shaped protrusion 4131. As shown in fig. 23, the upper locking hook 420 includes a hooking portion 421 engaged with the locking groove 221 on the upper side, and an upper connecting portion 423 connected to the lower locking hook 410. Specifically, the lower end of the upper connecting portion 423 is formed as an open groove 4231, and the T-shaped protrusion 4131 is inserted into the open groove 4231 to connect the upper locking hook 420 and the lower locking hook 410. The return spring 430 is arranged between the upper lock hook 420 and the upper end surface of the small heat-preservation door 250. More specifically, a connecting shaft 422 is formed on the upper locking hook 420, and the return spring 430 is sleeved on the connecting shaft 422.

As shown in fig. 18, a guide positioning portion is formed on an inner surface of the second housing 252, the upper connecting portion 423 is snapped on the guide positioning portion, and the upper latch hook 420 can slide along the guide positioning portion. Specifically, the guiding and positioning portion is a hook 2521 formed on the inner surface of the second housing 252, and the hook 2521 is located on both sides of the upper connecting portion 423 and extends a certain distance in the up-down direction. The upper connecting portion 423 is connected between the two hooks 2521.

In an initial state, under the action of the elastic force of the return spring 430, the upper latch hook 420 and the lower latch hook 410 are located at the first position to realize the locking of the small heat-preservation door 250 and the door body inner container 220; when a user pulls the lower locking hook 410 with a hand, the lower locking hook 410 rotates around the hinge part 412, the hook part 414 moves downward to be separated from the lower locking groove 221, meanwhile, the connecting part pushes the upper locking hook 420 upward to move, the upper locking hook 420 is separated from the upper locking groove 221, and the upper locking hook 420 and the lower locking hook 410 are located at the second position to unlock the heat-insulating small door 250 and the door body inner container 220.

In order to ensure the aesthetic appearance of the refrigerator door 200, referring to fig. 1 and 2, a bar counter door 260 is disposed on the refrigerator door 200 in the area where the vacuum packaging device 300 is located. As shown in fig. 4-6, the lower end of the bar door 260 is hinged to the door 200 through a damping device 280, which can ensure that the bar door 260 slowly rotates to a position perpendicular to the surface of the door housing 210; the upper end of the bar counter door 260 is connected to the door body housing 210 through a first push switch 212. By adopting the bar counter door 260 structure, the storage bag containing food can be placed on the bar counter door 260 and then vacuum packaging treatment is carried out under the state that the bar counter door 260 is opened, thereby facilitating the operation of a user. When the bar door 260 is closed, the appearance beauty of the door body 200 is ensured.

The damper 280 includes a damper body 280A and a rotation shaft 280B rotatably connected to the damper body 280A, wherein the rotation shaft 280B includes an extension extending to the outside of the damper body.

Be equipped with erection support 261 on bar counter door 260, erection support 261 is equipped with the mounting hole, attenuator body 280A nonrotatably connect in the mounting hole, the extension of axis of rotation with door body 200 fixed connection. More specifically, the circumferential surface of the damper body 280A is provided with an anti-rotation protrusion extending axially, the mounting hole is correspondingly provided with an anti-rotation groove matching with the mounting hole, and the damper body 280A is inserted into the mounting hole and then is non-rotatably connected with the mounting support 261.

As an embodiment, as shown in fig. 4 and 5, the extension section is fixedly connected to the door body 200 through a connecting assembly, the connecting assembly includes a sleeve 281 and a connecting plate 282, one end of the sleeve 281 is connected to the extension section in a non-rotating manner, and the other end of the sleeve 281 is connected to the connecting plate 282 in a non-rotating manner; the other end of the connecting plate 282 is connected to the door body through a screw thread; the shaft sleeve is rotatably connected in the mounting hole. The shaft sleeve 281 and the connecting plate 282 are arranged to increase the connection strength between the damping device and the door body, so as to prevent the bar counter door from changing position due to insufficient strength when the rotating shaft 280B of the damping device is directly connected to the door body.

The connection mode that one end of the shaft sleeve 281 does not rotate relative to the extension section is not unique, specifically, as shown in fig. 5, the extension section is shaped into a flat cylinder, a first connection hole corresponding to the extension section is formed in the shaft sleeve 281, and the extension section is inserted into the first connection hole and is fixedly connected with the extension section through a pin shaft.

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

As another embodiment, as shown in fig. 6, an extension of the rotating shaft 280B extends out of the outer surface of the mounting seat and is directly connected to the door body by a screw.

As shown in fig. 3, a door opening and closing detection device 290 for detecting the opening and closing of the bar counter door 260 is disposed at a position of the bar counter door 260 corresponding to the door body 200; the control unit determines the opening or closing of the electric signals of the driving device and the vacuum pumping assembly according to the signals of the door opening and closing detection device 290. Specifically, when the door opening and closing detection device 290 detects that the bar counter door 260 is opened, the electric signals of the driving device and the vacuum pumping assembly are turned on; when the door opening and closing detection device 290 detects that the bar counter door 260 is closed, the driving device and the electric signal of the vacuum pumping assembly are closed. Therefore, whether the user uses the equipment or not is identified through the switch of the bar counter door 260, the power-on and power-off of the equipment are controlled, the energy conservation and safety guarantee of the equipment are realized, and the convenience and safety of the user are improved.

Specifically, the bar door switch detecting device includes a magnetic sensitive switch 290, the magnetic sensitive switch 290 includes a switch body 291 installed on the door body side, and a magnetic member 292 installed at a position corresponding to the bar door 260, and the magnetic sensitive switch 290 is located on the non-hinged side of the bar door.

As shown in fig. 2, the inside of the bar counter door 260 further includes an operation panel 270 covering the outside of the installation cavity, an insertion port 271 is formed on the operation panel 270, and a lower surface of the insertion port 271 is flush with an upper surface of the first opening cavity 311. Thus, the vacuum packaging apparatus 300 can be entirely hidden behind the operation panel 270. When a user performs vacuum plastic packaging, the opening of the storage bag can be directly inserted from the insertion port 271 of the operation panel 270 and directly extend to the upper surface of the first open cavity 311, and when the upper support 320 moves downwards, the opening of the storage bag can be placed in the vacuum-pumping area 301. Specifically, the operation panel 270 is detachably connected to the door housing 210. The operation panel 270 is further provided with a display and control device 272, and the display and control device 272 includes an indicating device for displaying the working state of the vacuum packaging apparatus 300; and a control button for controlling the start or stop of the vacuum packaging apparatus 300. The user can determine whether the bag can be drawn out according to the operation state of the vacuum sealing apparatus 300 displayed by the display and control unit 272.

Further, the control unit determines the on/off of the electrical signal of the display control device 272 according to the signal of the door opening/closing detection device 290. When the door opening and closing detection device 290 detects that the bar counter door 260 is in a closed state, the control system sends a power-off signal to the display and control device 272, and at the moment, the vacuum packaging device is in an energy-saving and safe state due to the power-off of the display and control device 272; when the user need carry out the evacuation, open bar door 260, magnet 292 in the bar door 260 is kept away from switch body 291 along with bar door 260, sends the circular telegram signal for showing controlling means 272 this moment, shows controlling means 272 circular telegram this moment, and the user can be through showing controlling means 272's control button control vacuum packaging device, makes to be in operating condition, and the user uses vacuum packaging device 300 to carry out the evacuation operation.

When a user applies the vacuum packaging device 300, a storage bag to be packaged is inserted through the insertion port 271 arranged on the operation panel 270, after the storage bag is inserted in place (the storage bag abuts against the limiting rib 322), the user triggers the starting button on the operation panel 270 to start the motor 341 to control the upper support 320 to descend, and controls the vacuum pump 331 to start after the upper support 320 moves in place (the vacuumizing area 301 is sealed), so as to vacuumize the vacuumizing area 301, wherein the storage bag is vacuumized through an opening of the storage bag positioned in the vacuumizing area 301; when the pressure sensor detects that the pressure value reaches a set negative pressure value, controlling the vacuum pump 331 to stop and simultaneously starting the heating device 370 to work, and controlling the electric pressure relief valve to start after the heating device 370 works for a set time; then controlling the linear motor 341 to start the upper support 320 to ascend until the first open cavity 311 is separated from the second open cavity 321; the display and control device 272 on the operation panel 270 indicates to the user that the bag can be drawn out, and the vacuum packaging of the bag is completed.

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 can be made without departing from the scope of the invention.

Claims (10)

1. The utility model provides a refrigerator, the door body outside of refrigerator sets up vacuum packaging device which characterized in that:

the vacuum packaging apparatus includes: the door body is fixedly connected with the door body through one of the upper support and the lower support; the other one of the upper support and the lower support moves up and down under the driving of a driving device; the upper support and the lower support move to a cavity between the upper support and the lower support after the upper support and the lower support are in butt joint, so that a vacuumizing area is formed, wherein the vacuumizing area is communicated with a vacuumizing assembly;

a bar counter door is arranged on the outer side of the door body in the area where the vacuum packaging device is located, and a door opening and closing detection device for detecting the opening and closing of the bar counter door is arranged at the position, corresponding to the door body, of the bar counter door; the door opening and closing detection device, the driving device and the vacuumizing assembly are respectively and electrically connected with the control unit, and the control unit receives a detection signal of the door opening and closing detection device and then sends a control signal to enable the electric signals of the driving device and the vacuumizing assembly to be opened or closed.

2. The refrigerator according to claim 1, wherein: bar counter door switch detection device includes the magnetic sensitive switch, the magnetic sensitive switch is including installing the switch body of door side, and install the piece is inhaled to magnetism that the bar counter door corresponds position department, the magnetic sensitive switch is located the non-articulated side of bar counter door.

3. The refrigerator according to claim 1, wherein: the vacuum-pumping assembly comprises a vacuum pump communicated with the vacuum-pumping area through a pipeline; and the pipeline is also provided with a pressure detection device for detecting the pressure of the vacuumizing area and a pressure relief device for controlling the pressure relief of the vacuumizing area.

4. The refrigerator according to claim 1, wherein: the driving device comprises a motor and a transmission mechanism, the transmission mechanism is used for converting the rotary motion of the motor into linear motion, and the output end of the transmission mechanism is connected with the upper support or the lower support.

5. The refrigerator according to claim 1, wherein: the lower end of the bar counter door is hinged with the door body through a damping device, and the upper end of the bar counter door is connected with the door body through a clamping device.

6. The refrigerator according to claim 5, wherein: the damping device comprises a damper body and a rotating shaft which is rotatably connected in the damper body, wherein the rotating shaft comprises an extension section extending out of the damper body; the bar counter door is provided with an installation support, the installation support is provided with an installation hole, the damper body is non-rotatably connected in the installation hole, and the extension section of the rotating shaft is fixedly connected with the door body.

7. The refrigerator according to claim 6, wherein: the extension section is fixedly connected with the door body through a connecting assembly, the connecting assembly comprises a shaft sleeve and a connecting plate, one end of the shaft sleeve is connected with the extension section in a non-rotating mode, and the other end of the shaft sleeve is connected with the connecting plate in a non-rotating mode; the other end of the connecting plate is in threaded connection with the door body; the shaft sleeve is rotatably connected in the mounting hole.

8. The refrigerator according to claim 1, wherein: the lower support is provided with a first open cavity, and the upper support is provided with a second open cavity; the lower support is arranged on the outer side of the first open cavity and provided with a heat insulation pad, the upper support is arranged on the outer side of the second open cavity and provided with a heating device, and the heating device and the heat insulation pad are arranged in a corresponding mode in the vertical direction.

9. The refrigerator according to claim 2, wherein: the two driving devices are symmetrically arranged on two sides of the upper support; the driving device and the vacuumizing assembly are installed on a mounting seat, an inward-sunken mounting cavity is formed in the door body shell, and the mounting seat and the upper support seat are installed in the mounting cavity.

10. The refrigerator according to claim 9, wherein: the packaging device is characterized by further comprising an operation panel which is covered on the outer side of the installation cavity, wherein an insertion port suitable for inserting a bag to be packaged is formed in the operation panel, a display and control device is further arranged on the operation panel, and the display and control device comprises an indicating device used for displaying the working state of the vacuum packaging device and a control button used for controlling the vacuum packaging device to work; and the control unit determines the opening or the disconnection of the electric signal of the display control device according to the door opening and closing detection device.

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