CN210772967U - A kind of refrigerator - Google Patents

Abstract

The utility model discloses a refrigerator, wherein a vacuumizing assembly is arranged on the outer side of a refrigerator door body and comprises a vacuum pump; the vacuumizing pipe joint is arranged on the door body, is communicated with the vacuum pump and is used for pumping gas from the sealed tank body inserted and connected onto the vacuumizing pipe joint through a pipeline; the vacuum packaging device is arranged on the door body and comprises: the device comprises an upper support and a lower support, wherein the upper support and the lower support are arranged oppositely; the driving device is used for driving the upper support and/or the lower support to move so as to enable the upper support and the lower support to approach or separate from each other, and the opposite surfaces of the upper support and the lower support are butted and then sealed to form a sealed cavity; the sealed cavity is communicated with the vacuum pump and is used for extracting gas from a storage bag with an opening placed in the sealed cavity. The food materials stored in various compartments of the refrigerator can be vacuumized and preserved, and the preservation range is expanded.

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, include: a storage chamber; a door opening or closing the storage chamber; the method is characterized in that: further comprising: an evacuation assembly comprising a vacuum pump; the vacuumizing pipe joint is arranged on the door body, is communicated with the vacuum pump and is used for pumping gas from the sealed tank body inserted and connected onto the vacuumizing pipe joint through a pipeline; the vacuum packaging device is arranged on the door body and comprises: the device comprises an upper support and a lower support, wherein the upper support and the lower support are arranged oppositely; the driving device is used for driving the upper support and/or the lower support to move so as to enable the upper support and the lower support to approach or separate from each other, and the opposite surfaces of the upper support and the lower support are butted and then sealed to form a sealed cavity; the sealed cavity is communicated with the vacuum pump and is used for extracting gas from a storage bag with an opening placed in the sealed cavity.

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 and the vacuumizing pipe joint on the door body, so that a user can carry out vacuum packaging treatment on the storage bag filled with food materials and carry out vacuumizing treatment on the sealing tank body by utilizing the vacuumizing pipe joint; compared with the prior 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.

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 a side sectional view of the vacuum packaging apparatus of the present invention;

fig. 5 is a schematic structural diagram of the upper support of the vacuum packaging apparatus of the present invention in the forward and reverse directions;

fig. 6 is an assembly diagram of the upper support, the driving device and the vacuum pumping assembly in the vacuum packaging apparatus of the present invention;

fig. 7 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. 8 is a diagram showing the connection between the upper support and the filtering container in the vacuum packaging apparatus of the present invention;

FIG. 9 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. 10 is a schematic view illustrating a vacuum tank being evacuated by a vacuum pipe joint in a refrigerator according to the present invention;

fig. 11A is a perspective view of the vacuum tube connector of the present invention;

fig. 11B is a cross-sectional view of the vacuum tube connector of the present invention;

fig. 12 is an exploded view of the mounting socket and the pipe connector of 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 according to embodiment 1 of the present invention;

fig. 24A is a schematic structural view of a lower support, a heat-insulating small door and a door body in a locked state in embodiment 2 of the present invention;

fig. 24B is a schematic structural view of the lower support and the heat-insulating small door removed from the door body in embodiment 2 of the present invention;

fig. 25 is an exploded view of the heat-insulating wicket, the lower support and the latch hook assembly in embodiment 2 of the present invention;

fig. 26A is a schematic structural view of a lower support, a heat-insulating small door and a door body in a locked state in embodiment 3 of the present invention;

fig. 26B is a schematic structural view of the small heat-insulating door and the door body in an unlocked state in embodiment 3 of the present invention;

fig. 26C is a schematic structural view of the lower support and the heat-insulating small door removed from the door body in embodiment 3 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.

Example 1

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 4, 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 17, an embodiment of the vacuum packaging apparatus 300 is provided, in this embodiment, as shown in fig. 4, 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 is sealed to form a sealed chamber 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.

Specifically, in order to improve the sealing performance of the sealing chamber 301, as shown in fig. 4, a sealing portion for sealing the sealing chamber 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 disposed in the first and second sealing grooves 313 and 323 seal the sealing chamber 301 inside, thereby achieving reliable sealing of the sealing chamber 301.

Specifically, as shown in fig. 5, a position-limiting part 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 sealed cavity 301, so as to prevent an opening position of the storage bag from extending out of the sealed cavity 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 sealed chamber 301, the limiting rib 322 can block the storage bag from being inserted inwards continuously; in other embodiments, the sealed chamber 301 may further include an in-place detection device, specifically, a microwave sensor or an infrared sensor may be used to detect whether the storage bag is inserted into the sealed chamber 301, and further send a signal indicating whether the storage 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. 6 and 7, wherein the vacuum-pumping assembly 330 comprises a vacuum pump 331 communicating with the sealed chamber 301 through a pipeline 335; the pipeline 335 is further provided with a pressure detection device 332 and a gas balance device 333, wherein the pressure detection device 332 is specifically a pressure sensor, and is used for detecting the pressure in the sealed chamber 301; the gas balance device 333 is specifically an electrodynamic balance valve, which, when opened, communicates the sealed chamber 301 with the outside. When a user carries out vacuum-pumping packaging, the vacuum pump 331 is started to carry out vacuum-pumping processing on the sealed chamber 301, and when the pressure detection device 332 detects that the pressure of the sealed chamber 301 reaches a set negative pressure value, the controller controls the vacuum pump 331 to stop. The vacuum degree of the sealed cavity 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 vacuumizing effect is ensured. After the vacuum-pumping and packaging operations are completed, the air pressure of the sealed chamber 301 can be increased to the standard atmospheric pressure by opening the electric balance valve, so that the user can take out the storage bag conveniently.

In order to prevent foreign matters in the sealed chamber 301 from entering the vacuum pump 331 through the pipeline 335, a filter protection device is further included on the pipeline 335, wherein in one embodiment, as shown in fig. 8, 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 sealed chamber 301 through a pipeline, and the outlet is communicated with the vacuum pump 331 through a pipeline; foreign materials in the sealed chamber 301 enter the filtering container 334 through the pipeline 335 and remain at the bottom of the filtering container 334, so that the foreign materials 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. 9, 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 sealed chamber 301 and the pipeline 335 may be one, and certainly, in order to avoid vacuum pumping failure caused by blocking the connecting hole by foreign matters in the sealed chamber 301 when a single connecting hole is formed, 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 balance valve are arranged on the main pipe.

As shown in fig. 6 and 7, in order to further reduce the noise generated during the evacuation of the vacuum pump, a silencer 339 is further disposed on the mounting base 305, and an air inlet 3393 of the silencer 339 is communicated with an exhaust port of the vacuum pump 331.

Specifically, as shown in fig. 6 and 7, the driving device 340 and the vacuum assembly 330 are mounted on the mounting seat 305 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. As shown in fig. 12, the mounting base 305 includes a base body and a cover 306, a vacuum pump mounting cavity 3051 located in the middle of the base body of the mounting base 305, driving device mounting cavities 3052 located at the left and right sides of the vacuum pump mounting cavity 3051, and a filtering container mounting cavity 3053 located at the lower side of the vacuum pump mounting cavity 3051 are provided on the base body of the mounting base 305; the silencer installation cavity 3054 is located on the upper side of the vacuum pump installation cavity 3051, the other component installation cavity 3055 is located on the upper side of one of the drive device installation cavities 3052, and the other component installation cavity 3055 is used for installing an electric balance valve, a pressure sensor and the like. The cover 306 is connected to the base 305 to enclose the vacuum pump installation cavity 3051.

Due to the various components in the evacuation assembly: the vacuum pump 331, the pressure sensor 332, the gas balancing device 333 and the filtering protection device 334 are all required to be communicated through a pipeline 305; and in order to realize modular assembly, these components need to be integrally assembled on the mounting seat 305; therefore, in order to make the pipe connection between the vacuum pumping modules installed in the installation base 305 more reasonable and make the pipe assembly on the installation base with a more compact structure easier, a pipe connector is provided on the pipe, specifically, the pipe connector is a four-way connector 308A, one way of the four-way connector 308A is communicated with the suction opening of the vacuum pump 331, one way is communicated with the pressure sensor 332, one way is communicated with the electrodynamic balance valve 333, and the other way is communicated with the filter container 334; a guide structure is arranged between the four-way connector 308A and the mounting base 305, and the four-way connector 308A is inserted into the mounting base 305 in a sliding manner.

Specifically, as shown in fig. 12, the mounting base 305 is formed with a plurality of separation ribs 3056, and the separation ribs 3056 are used for separating the mounting base 305 into different mounting cavities; one of the separation ribs 3056 has an opening, and a sliding protrusion is arranged at the opening of the separation rib 3056 along the thickness direction of the mounting seat 305; the four-way connector 308A comprises a plate body 3381 and plug-in ports 3382 respectively arranged at two sides of the plate body; the plate body 3381 is correspondingly provided with a sliding groove along the square thickness of the mounting seat 305, and the plate body 3381 is inserted into two sides of the opening of the separation rib 3056 in a sliding manner.

When the pipeline 305 of the vacuum pumping assembly 330 is installed, firstly, the vacuum pump 331, the pressure sensor 332, the gas balance device 333 and the filter protection device 334 are respectively installed on the corresponding installation positions of the installation base 305; and then, four pipelines are inserted into the four insertion ports 3382 of the four-way connector 338A, the plate body 3381 of the four-way connector 338A is inserted into the opening of the partition rib 3056, and the free end of each pipeline 305 is respectively communicated with the extraction port of the vacuum pump 331, the pressure sensor 332, the electric balance valve 333 and the outlet of the filter container 334, so that the whole vacuum pumping assembly can be mounted, and the vacuum pumping assembly is compact in structure and convenient to assemble. Moreover, the structure can enable the pipeline to be embedded in the seat body of the installation seat 305, and the problem that a plurality of pipelines are arranged in disorder is avoided.

In order to perform the vacuum-pumping process on the sealed tank with the socket, as shown in fig. 7, a vacuum-pumping pipe joint 337 connected to the vacuum-pumping assembly through a pipeline is further disposed on the mounting base 305. When a user vacuumizes the sealed tank body with the insertion port, one end of the connecting pipe is inserted into the insertion port of the sealed tank body B, the other end of the connecting pipe is inserted into the vacuumizing pipe joint 337, the vacuum pump 331 is started for vacuumizing, and when the pressure detection device 332 detects that the pressure of the pipeline reaches a set negative pressure value, the vacuum pump 331 is controlled to stop.

Specifically, the vacuum pipe joint 337 is inserted into the wall of the other component mounting cavity 3055; the inner side of the vacuumizing pipe joint 337 is provided with a switch valve which is used for closing the vacuumizing pipeline in an initial state and opening the vacuumizing pipeline after the vacuumizing pipe is inserted into the vacuumizing pipe joint.

As shown in fig. 11A and 11B, the vacuum pumping pipe joint is formed by connecting a first interface portion 3371 and a second interface portion 3372, the first interface portion 3371 is provided with an interface for communicating with the vacuum pumping assembly, the second interface portion 3372 is provided with an interface for communicating with the sealed tank, a cavity is formed between the first interface portion 3371 and the second interface portion 3372, the switch valve is a plug 3373 and a return spring 3374 which are arranged in the cavity, the plug 3373 is used for plugging an interface portion of the second interface portion 3372, and the return spring 3374 is used for applying a force for plugging the interface of the second interface portion 3372 to the plug 3373.

Since the vacuum port 337 and the filter container 334 are directly connected through a pipe 305, but the vacuum port 337 and the filter container 334 are located in two different chambers, the mounting base 305 further includes a pipe connector for connecting the pipe between the vacuum port 337 and the filter container 334, specifically, the pipe connector is a two-way connector 338B, the two-way connector 338B includes a plate body 3381 and two insertion ports 3382 respectively located at two sides of the plate body 3381, and one end of the insertion port 3382 is connected to the vacuum port 337 through a pipe; the other end is communicated with the filtering container 334 through a pipeline.

Because the number of pipeline parts in the mounting seat is large, the pipeline connection among the vacuum pumping assemblies is more reasonable and orderly, and the disordered pipeline is avoided; two pipeline connectors are inserted into the opening of the separation rib 3056 from inside to outside, wherein the width of the opening on the inner side is smaller than that of the opening on the outer side. When the two-way connector 338B is installed, the two-way connector 338B is firstly inserted into the opening with smaller width; after the pipelines of the two-way connector 338B are connected, the four-way connector 338A is connected to the opening on the outer side, and then pipeline connection is performed. The limiting structure of the pipeline connector is formed by adopting a mode that the inner side opening is narrow and the outer side opening is wide, so that the two pipeline connectors can be better positioned. Meanwhile, the whole device is simple in structure and convenient to install.

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 hole 324 on the upper support 320 and then mounted on the mounting base 305, the cover 306 is connected to the vacuum pump mounting cavity 3051 to form an assembly, after the assembly, one side of the mounting base 305 having the cavity faces the door shell 210, the assembly is mounted in the mounting cavity 211 through screws penetrating through lugs on two sides of the mounting base 305, and all parts are modularly assembled, and are not exposed on the outer surface, so that the integrity of the device is better.

As shown in fig. 4, the vacuum packaging apparatus 300 further includes a packaging region 302 located outside the sealed chamber 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 sealed chamber 301 forming a seal with the lower support 310, the thermal insulating pad 360 in the encapsulation area 302 abuts 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 sealing device, 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. 7, 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. 7, 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 chamber 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 sealed chamber 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 edge area of the upper support 320 to be not tightly fitted with the lower support 310, resulting in air leakage of the sealed chamber 301; therefore, in order to provide the sealing performance of the sealing chamber 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.

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 sealing cavity 301 during vacuumizing 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. 18 and 19, 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. 20, the upper latch hook 420 includes a hook 421 engaged with the locking groove 221 on the upper side, and an upper connection part 423 connected to the lower latch 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. 20, 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 arranged on the refrigerator door 200 at the area where the vacuum packaging device 300 is located, and the lower end of the bar counter door 260 is hinged to the door 200 and can be turned over to a position perpendicular to the surface of the door shell 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 inside of the bar counter door 260 further comprises an operation panel 270 covering the outside of the installation cavity, and an insertion port 271 for inserting a storage bag to be packaged and an insertion hole 273 for inserting the vacuum pipe joint 337 are formed on the operation panel 270. Wherein the lower surface of the socket 271 is flush with the upper surface of the first open 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 sealed cavity 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.

When a user carries out vacuum plastic package on an object storage bag, the object storage bag to be packaged is inserted through a plug-in port 271 arranged on an operation panel 270, after the object storage bag is plugged in place (the object storage bag abuts against the limiting rib 322), the user triggers a starting button on the operation panel 270, a motor 341 is started to control an upper support 320 to descend, the vacuum pump 331 is controlled to start after the upper support 320 moves in place (the sealing cavity 301 is sealed), the sealing cavity 301 is vacuumized, and the object storage bag is vacuumized through an opening of the object storage bag positioned in the sealing cavity 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 after the heating device 370 works for a set time, controlling the electric balance valve to start; 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.

When a user vacuumizes the sealed tank body B with the socket, as shown in fig. 10, the sealed tank body B with the socket is plugged into the vacuum pipe joint 337 inside the insertion hole 273 of the operation panel 270 through a connection pipe, and after the plugging is completed, the user triggers the start button on the operation panel 270 to start the motor 341 and control the upper support 320 to descend until the upper support 320 moves to the proper position to seal the sealed chamber 301; at this time, the vacuum pump 331 is controlled to start, and the sealed tank B having the socket is vacuumized. After the vacuum pumping treatment is finished, the working set time of the gas balancing device is controlled, and after the air pressure in the sealed chamber 301 reaches the standard atmospheric pressure, the driving device is controlled to drive the upper support to move upwards to the initial position. Because the pipeline of the sealing tank body B is communicated with the pipeline of the storage bag, in order to avoid the problem that the pipeline is communicated with the outside through the cavity between the upper support 320 and the lower support 310 when the tank body B is sealed, the vacuum tank B can be sealed in a way of vacuumizing after the sealing cavity is sealed by controlling the driving device, the normal work can be realized without isolating the pipeline of the sealing tank body from the pipeline of the storage bag through components such as a switch valve, the components are simplified, and the cost is reduced.

Example 2

The present embodiment 2 has substantially the same structure as the embodiment 1, except for the connection manner of the lower holder 310 and the thermal insulating wicket 250. Specifically, in this embodiment, as shown in fig. 24A and 24B, the lower holder 310 is detachably attached to the thermal door 250. The thermal wicket 250 is formed of a first case 251 and a second case 252 having an open cavity structure and an insulator disposed between the first case 251 and the second case 252 as shown in fig. 25. The first housing 251 is connected with the second housing 252 in a snap-fit manner, the first housing 251 is provided with an extension arm 2511 in a direction away from the second housing 252, and the lower support 310 is detachably connected to the extension arm 2511.

Specifically, a first limiting portion extending upwards is formed at the end of the extension arm 2511, a second limiting portion matched with the first limiting portion is formed at the lower side of the lower support 310, and the first limiting portion and the second limiting portion are matched to position the lower support 310 on the extension arm 2511. More specifically, the first limiting portion is a limiting plate, the limiting portion is a baffle formed at the bottom of the lower support 310 and extending downwards, the baffle is inserted into the inner side of the limiting plate to install the lower support 310 on the extension arm 2511, and the problem that the sealing cavity is not sealed tightly due to the fact that the lower support 310 moves in the horizontal direction is avoided.

In order to further ensure the heat insulation of the door body 200 and avoid the cold leakage through the gap between the mounting hole 201 and the small heat-insulating door 250, a small door seal 253 is arranged between the small heat-insulating door 250 and the door body inner container 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-insulating door 250 is reliably fixed to the door body 200, a locking device 400 is provided between the small heat-insulating door 250 and the door body inner container 220.

As shown in fig. 25, the locking device 400 includes: the locking hook 440 is hinged to the bottom of the small heat-preservation door 250, and the middle part of the locking hook 440 is provided with a hinged shaft for connecting with the small heat-preservation door 250 and is connected to the small heat-preservation door 250; the door further comprises a locking groove which is formed on the door body inner container 220 and matched with the locking hook; and a reset torsion spring 450 sleeved on the hinge shaft; one leg of the reset torsion spring is abutted against the small heat preservation door 250, and the other leg of the reset torsion spring is abutted against the locking hook 440; in the initial state, the torsion of the return torsion spring 450 is suitable for the latch hook 440 to be at the first position, so that the heat-preservation wicket 250 can be mounted on the door body.

Specifically, in order to improve the aesthetic property of the small door, a mounting groove is formed at the bottom of the small door, and the lock hook is mounted inside the mounting groove. Fig. 24A and 24B show a process of detaching the thermal door 250 and the lower holder 310. When the small heat-preservation door 250 and the lower support 310 are mounted on the door body 200, the locking hooks are matched with the locking grooves, so that the locking state of the small heat-preservation door 250 is realized; when the heat-insulating small door 250 and the lower support 310 need to be disassembled, the locking hook is pulled to be away from the locking groove, the locking device 400 is in an unlocking state, the heat-insulating small door 250 and the lower support 310 are pulled out, and the lower support 310 is taken out of the heat-insulating small door 250 to clean the lower support 310. In this embodiment, the lower support 310 is detachably connected to the heat-insulating wicket 250, so that the lower support 310 can be cleaned more easily and conveniently.

Example 3

The structure of the present embodiment 2 is substantially the same as that of the present embodiment 1, except for the connection manner of the lower holder 310 and the heat-insulating small door 250 with the door body 200.

As shown in fig. 26A to 26C, the lower support 310 and the small heat-insulating door 250 are arranged independently, a limiting portion for limiting the position of the lower support 310 is arranged at the lower side of the mounting hole 201, one end of the lower support 310 abuts against the limiting portion, and the other end of the lower support 310 abuts against the small heat-insulating door 250. The heat-insulating small door 250 can be mounted on the door body 200 by using the locking device 400 in embodiment 1 or embodiment 2.

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. A refrigerator, comprising:

a storage chamber; a door opening or closing the storage chamber; the method is characterized in that: further comprising:

an evacuation assembly comprising a vacuum pump;

the vacuumizing pipe joint is arranged on the door body, is communicated with the vacuum pump and is used for pumping gas from the sealed tank body inserted and connected onto the vacuumizing pipe joint through a pipeline;

the vacuum packaging device is arranged on the door body and comprises:

the device comprises an upper support and a lower support, wherein the upper support and the lower support are arranged oppositely;

the driving device is used for driving the upper support and/or the lower support to move so as to enable the upper support and the lower support to approach or separate from each other, and the opposite surfaces of the upper support and the lower support are butted and then sealed to form a sealed cavity; the sealed cavity is communicated with the vacuum pump and is used for extracting gas from a storage bag with an opening placed in the sealed cavity.

2. The refrigerator according to claim 1, wherein: the evacuation assembly further includes: the pressure detection device is used for detecting the pressure in the pipeline, and the gas balance device is used for communicating the gas in the pipeline with the outside gas.

3. The refrigerator according to claim 1 or 2, characterized in that: the vacuum pumping assembly further comprises a filtering protection device for filtering foreign matters pumped into the pipeline.

4. The refrigerator according to claim 3, wherein: the filtering protection device comprises a filtering container connected in series on a pipeline, the upper end of the filtering container is provided with two inlets and two outlets, one of the inlets is communicated with the sealed chamber through the pipeline, and the other inlet is communicated with the vacuumizing pipe joint through the pipeline; the outlet is communicated with the vacuum pump through a pipeline.

5. The refrigerator according to claim 1, wherein: the inner side of the vacuum pipe joint is provided with a switch valve which is used for sealing the communication of the gas inside and outside the vacuum pipe joint in an initial state.

6. The refrigerator according to claim 5, wherein: the vacuumizing pipe joint is formed by connecting a first connecting part and a second connecting part, a cavity is formed between the first connecting part and the second connecting part, the switch valve is a plug and a return spring which are arranged in the cavity, the plug is used for plugging an interface part of the second connecting part, and the return spring is used for applying acting force for plugging the interface of the second connecting part to the plug.

7. The refrigerator according to claim 2, wherein: the vacuum pump is characterized by further comprising a control system, wherein after the control system receives a sealed tank instruction issued by a user, the control system controls the driving device to drive the upper support and the lower support to be relatively close until the sealed chamber is sealed, then controls the vacuumizing assembly to vacuumize the sealed tank, and controls the vacuum pump to stop when the pressure detected by the pressure detection device is determined to meet a preset condition.

8. The refrigerator according to claim 7, wherein: the control system is configured to control the gas balancing device to work for a set time after controlling the vacuum pump to stop, and control the driving device to drive the upper support and the lower support to move away from each other until the upper support and the lower support return to the initial positions.

9. The refrigerator according to claim 1, wherein: the driving device, the vacuumizing assembly and the vacuumizing pipe joint are installed on a mounting seat, an inward-concave mounting cavity is formed in the outer side of the door body, and the mounting seat and the upper support are installed in the mounting cavity.

10. The refrigerator according to claim 9, wherein: the vacuum bag packaging device is characterized by further comprising an operation panel arranged on the outer side of the mounting cavity in a covering mode, wherein an insertion port suitable for being inserted into a bag to be packaged and an insertion hole suitable for being inserted into the vacuum pipe joint are formed in the operation panel.

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