WO2022088625A1

WO2022088625A1 - Refrigerator

Info

Publication number: WO2022088625A1
Application number: PCT/CN2021/089084
Authority: WO
Inventors: 孙迎宾; 徐文涛; 朱建高; 张善房; 冯泽中
Original assignee: 海信（山东）冰箱有限公司
Priority date: 2020-10-28
Filing date: 2021-04-22
Publication date: 2022-05-05
Also published as: CN213300575U

Abstract

Provided is a refrigerator, comprising a refrigerator door, and a vacuum packaging device which comprises an air extracting device, an upper support base and a lower support base, wherein one of the upper support base and the lower support base is fixedly connected to the refrigerator door, and the other is connected to a driving device and moves vertically under the action of the driving device; the upper support base and the lower support base move into a cavity, which is formed between the upper support base and the lower support base after abutting with each other, to form a vacuumizing region in communication with the air extracting device; one of the upper support base and the lower support base is provided with a heating wire and a temperature sensor, and the heating wire is arranged in a region where the upper support base abuts with the lower support base; and a heat-conducting housing abutting against the heating wire is arranged outside the temperature sensor, such that the temperature of the heating wire can be transferred to the temperature sensor by means of the heat-conducting housing.

Description

refrigerator

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application filed with the China Patent Office on October 28, 2020, the application number is 202022432340.5, and the invention name is refrigerator, the entire contents of which are incorporated into this application by reference.

technical field

The present disclosure belongs to the technical field of household appliances, and in particular, relates to a refrigerator.

Background technique

At present, consumers have higher requirements for the quality of fresh food. In order to meet the needs of consumers, new requirements are also put forward for the configuration of refrigerators, so as to hope that the fresh food stored in the refrigerator can have a longer storage period, so as to ensure the freshness of the ingredients. to prevent the loss of nutrients.

SUMMARY OF THE INVENTION

Embodiments of the present disclosure provide a refrigerator, including:

box door;

The vacuum packaging device is arranged on the box door; the vacuum packaging device includes:

air extraction device;

An upper support and a lower support, one of the upper support and the lower support is fixedly connected to the box door, and the other is connected with a driving device and moves up and down under the action of the driving device; the upper support After the seat and the lower support are moved to butt joints, the cavity between the two forms a vacuuming area that is communicated with the air-extracting device;

a heating wire, which is arranged on one of the upper support and the lower support, and is arranged in the area where the upper support and the lower support are opposite;

The temperature sensor is arranged on the upper support or the lower support where the heating wire is located; the temperature sensor is provided with a heat-conducting cover outside, and the heat-conducting cover is in contact with the heating wire, so that the heating wire The temperature can be conducted to the temperature sensor through the thermally conductive housing.

Description of drawings

1 is a schematic diagram of an exploded structure of an upper support of a vacuum packaging device for a refrigerator according to an embodiment of the present disclosure;

FIG. 2 is an oblique view of an upper support of a vacuum packaging device for a refrigerator according to an embodiment of the present disclosure;

3 is a perspective view of an upper support of the vacuum packaging device for a refrigerator provided in an embodiment of the present disclosure from another perspective;

4 is a cross-sectional view of an upper support of a vacuum packaging device for a refrigerator according to an embodiment of the present disclosure;

5 is a partial cross-sectional view of an upper support of a vacuum packaging device for a refrigerator according to an embodiment of the present disclosure.

In the above figures: upper support 1; first cavity 11; first ring groove 12; baffle plate 13; sealing ring 2; first accommodating groove 3; first groove 31; third groove 32; heating wire 4; heat insulating sheet 5; heat conducting sheet 6; insulating sheet 7; first through hole 310; limit plate 8; second through hole 50; guide plate 9;

Detailed ways

The present disclosure will be further described below in conjunction with specific embodiments, so that those skilled in the art can better understand the present disclosure and implement it, but the scope of protection required by the present disclosure is not limited to the scope described in the specific embodiments. . It should be noted that, the embodiments in the present application and the features in the embodiments may be arbitrarily combined with each other if there is no conflict.

It should be noted that the descriptions involving "first", "second", etc. in the present disclosure are only for the purpose of description, and should not be construed as indicating or implying their relative importance or implying the number of indicated technical features . Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature.

In addition, the technical solutions between the various embodiments can be combined with each other, but must be based on the realization by those of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of such technical solutions does not exist. , is not within the scope of protection required by the present disclosure.

A refrigerator generally includes an insulated cabinet; the cabinet defines a plurality of low temperature storage compartments for storing items such as food. In some possible implementations, the low temperature storage compartments are respectively a refrigerating compartment and a freezing compartment; wherein the refrigerating compartment is located at the upper part and the freezing compartment is located at the bottom. Each low-temperature storage compartment is provided with its own box door. The refrigerator has an evaporative refrigeration system that forms a closed loop. Since such a refrigeration system is well known in the prior art, it will not be repeated here.

A vacuum packaging device is arranged on the box door, and the vacuum packaging device includes: an upper support and a lower support, one of the upper support and the lower support is fixedly connected to the box door; the other of the upper support and the lower support is in the box door. It moves up and down under the drive of the drive device.

1 is a schematic diagram of an exploded structure of an upper support of a vacuum packaging device for a refrigerator provided by an embodiment of the present disclosure; FIG. 2 is a perspective view of an upper support of the vacuum packaging device for a refrigerator provided by an embodiment of the present disclosure; FIG. 3 provides an embodiment of the present disclosure An oblique view from another angle of the upper support of the refrigerator vacuum packaging device. As shown in FIGS. 1-3 , the upper support 1 is provided with a first cavity 11 with an open lower end, the lower support is provided with a second cavity with an open upper end, and the first cavity 11 and the second cavity are corresponding to the opening. After the upper support 1 and the lower support are moved to butt joints, the first cavity 11 and the second cavity are butted and sealed to form an evacuation zone. The upper support 1 is provided with a first ring groove 12 on the outer periphery of the first cavity 11, corresponding to the first ring groove 12, and the lower support is provided with a second ring groove on the outer periphery of the second cavity; the first ring groove 12 and the second ring groove are both provided with a sealing ring 2; after the upper support 1 and the lower support move to butt joint, the sealing ring 2 set in the first ring groove 12 and the second ring groove The sealing ring 2 is closely matched and will surround the evacuated area, so as to realize the sealing of the evacuated area.

The first cavity 11 or the second cavity is provided with a baffle plate 13 to limit the insertion position of the storage bag inserted into the vacuuming area and prevent the open end of the storage bag from protruding out of the vacuuming area. In the embodiment of the present disclosure, the baffle 13 is disposed in the first cavity 11 , and the height of the baffle 13 is greater than the depth of the first cavity 11 where the baffle 13 is located. When the user inserts the storage bag into the vacuuming area, the baffle 13 can prevent the storage bag from continuing to be inserted inward, and the user can know that the storage bag is inserted in place.

Wherein, the vacuuming area is communicated with an air-extracting device, and the air-extracting device includes a vacuum pump connected with the vacuuming area through a pipeline. It should be noted that the vacuum sealing device can be arranged on the box door corresponding to the refrigerating compartment, and also can be arranged on the box door corresponding to the freezing compartment.

The outer side of the vacuuming area is provided with an encapsulation area for plastic-sealing the storage bag after the vacuuming is completed, and the encapsulation area is provided with a heat insulation pad and a heating device arranged oppositely; The vacuum sealing of the storage bag is completed under the action. In some embodiments of the present disclosure, the heating device is installed on the lower surface of the upper support 1; the heat insulating pad is installed on the upper surface of the lower support.

Specifically, one end of the upper support 1 close to the front side of the refrigerator is provided with a first accommodating groove 3 surrounding the front end of the upper support 1 . The first accommodating groove 3 includes a first groove 31 on the lower side of the upper support 1 and a The third groove 32 is located on the upper side of the upper support 1 ; the upper side of the lower support is provided with a second groove corresponding to the first accommodating groove 3 for installing the heat insulating pad.

The heating device includes a heating wire 4, and the storage bag is packaged by electrifying the heating wire 4 to increase temperature. The heating wire 4 is installed in the first groove 31 of the upper support 1, and a heat insulation sheet 5 is arranged between the heating wire 4 and the bottom wall of the first groove 31 to prevent the heating wire 4 from being overheated and damaging the upper Stand 1. In the embodiment of the present disclosure, the heat insulating sheet 5 is a high temperature resistant mica sheet; the side of the heating wire 4 away from the heat insulating sheet 5 is provided with a thermally conductive sheet 6, which is used to spread the heating area of the heating wire 4 to make the storage bag plastic sealing area Increase, the plastic seal is firm.

The heating wire 4 extends along the length direction of the upper support 1 and is bent upward on both sides of the upper support 1 . The free end of the heating wire 4 extending to the upper side of the upper support 1 is fixed on the upper support 1 through an insulating sheet 7 . Specifically, the insulating sheet 7 is wrapped around the outside of the free end of the heating wire 4 to prevent the heating wire 4 from being exposed outside. Wherein, the insulating sheet 7 is made of insulating material.

The two free ends of the heating wire 4 are respectively connected with the two wires drawn from the terminal by the spring; the spring keeps the heating wire 4 in a tensioned state, so that the flatness of the heating wire 4 is high, and is located on the lower side of the heating wire 4 On the one hand, the thermally conductive sheet 6 can be fully contacted with the heating wire 4 to diffuse the heat of the heating wire 4, and on the other hand, the thermally conductive sheet 6 can be in close contact with the storage bag, so that the storage bag can be completely plastic-sealed. The above heating wire 4 extends to the free end of the upper side of the upper support 1 , the two wires and the spring drawn from the connection terminal are all accommodated in the third groove 32 on the upper support 1 .

A plug port communicated with the packaging area is formed on the front panel of the box door. When the user is carrying out vacuum packaging, the opening of the storage bag is inserted and extended between the upper support 1 and the lower support directly from the insertion port. After the upper support 1 is moved to the vacuuming area that forms a seal with the lower support, the opening of the storage bag can be placed in the vacuuming area, and the heat insulation pad in the packaging area is pressed against the heating device to remove The storage bag is fixed in the sealing area. After the vacuuming is completed, the storage bag can be quickly plastic-sealed by the heating device in the packaging area. According to the set control, after the heating device works and meets the preset end conditions, the driving device drives the upper support 1 to move up, and the user can pull out the storage bag. The storage bag completes the plastic sealing of the storage bag.

FIG. 4 is a cross-sectional view of an upper support of a vacuum packaging device for a refrigerator provided by an embodiment of the present disclosure; FIG. 5 is a partial cross-sectional view of an upper support of the vacuum packaging device for a refrigerator provided by an embodiment of the present disclosure. As shown in FIGS. 4-5 , the upper support 1 is provided with a temperature sensor 10 for monitoring the temperature of the heating wire 4 , and the temperature sensor 10 is provided with a heat conducting cover 15 abutting against the heating wire 4 , so that the heating wire 4 The temperature can be conducted to the temperature sensor 10 via the thermally conductive housing 15 .

In a possible embodiment, the bottom of the third groove 32 is provided with a first through hole 310 , and the groove wall of the third groove 32 is provided with a limiting plate 8 , and the position of the limiting plate 8 is the same as that of the first through hole 310 . corresponding to the location. Corresponding to the first through hole 310 on the bottom of the third groove 32, a second through hole 50 is formed on the heat insulating sheet 5; the first through hole 310 and the second through hole 50 are coaxially arranged, and the two cooperate to form a receiving portion; The temperature sensor 10 is installed in the accommodating part; the wires connected to the temperature sensor 10 are led out from the first through hole 310 and routed along the third groove 32 to make the temperature sensor 10 run neatly and reduce the influence of the high temperature of the heating wire 4 on it. In this embodiment, the heat-conducting cover 15 is a metal cover.

Specifically, a compression spring is installed between the heat-conducting cover 15 and the limiting plate 8 . The top of the heat-conducting cover 15 is provided with a first fixing portion, and the lower end of the limiting plate 8 is provided with a second fixing portion; one end of the compression spring is connected with the first fixing portion, and the other end is connected with the second fixing portion. In some embodiments of the present disclosure, the first fixing portion and the second fixing portion are configured as fixing posts or fixing grooves. Under the action of the compression spring, a pressure is applied to the heat conduction cover 15 covering the temperature sensor 10 in the direction of the heating wire 4, so that the heat conduction cover 15 is in close contact with the heating wire 4, and the heat of the heating wire 4 is transferred to the temperature in time. The sensor 10 enables the temperature sensor 10 to obtain the temperature of the heating wire 4 in time.

In some embodiments of the present disclosure, the limiting plate 8 is inclined upward to form a guiding plate 9 ;

The heat-conducting casing 15 is provided with a packaging hole, and the temperature sensor 10 is placed inside the heat-conducting casing 15 through the packaging hole.

The inside of the heat-conducting cover 15 is provided with a first limiting portion, and the packaging hole is provided with a first limiting member; when in use, the packaging hole is opened first, and then the temperature sensor 10 is placed in the heat-conducting cover 15; after the temperature sensor 10 is completed After installation, install the first stopper to block the packaging hole. The first limiting portion inside the heat-conducting cover 15, the inner wall of the heat-conducting cover 15, and the first limiting member cooperate to define an accommodating cavity suitable for the shape of the temperature sensor 10.

Specifically, the first limiting member is made of high temperature resistant material; in some embodiments of the present disclosure, the first limiting member is made of high temperature resistant epoxy resin, which has good high temperature resistance and long service life.

In a possible implementation manner, in order to fix the temperature sensor 10 more firmly, the first limiting member is made of a high temperature resistant adhesive filling method. In the specific use process, the temperature sensor 10 is first put into the heat-conducting housing 15 through the packaging hole until the temperature sensor 10 is in contact with the first limit part, and then a high temperature resistant adhesive (such as high temperature resistant adhesive) is poured through the packaging hole Epoxy resin fixative), so that the high temperature resistant adhesive (such as high temperature epoxy resin fixative) fills the space between the temperature sensor 10 inside the thermal conductive housing 15 and the package hole, and the high temperature resistant adhesive (such as high temperature resistant epoxy resin) The temperature sensor 10 can be fixed after the epoxy resin fixing agent) is solidified, and the structure formed after the solidification of the high temperature resistant adhesive (eg, the high temperature resistant epoxy resin fixing agent) is the first limiting member.

In the embodiment of the present disclosure, a heat-conducting cover 15 abutting against the heating wire 4 is provided outside the temperature sensor 10 , and the temperature of the heating wire 4 can be quickly sensed through the heat-conducting cover 15 to monitor the temperature of the heating wire when the heating wire 4 is working, which is convenient According to the temperature data of the heating wire 4, parameters such as the working time of the heating wire 4 are intelligently controlled to achieve reliable and stable packaging, thereby protecting the safety of the refrigerator.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure in other forms. Any person skilled in the art may use the technical contents disclosed above to make changes or modifications to equivalent changes. The embodiments are applied to other fields, but any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present disclosure without departing from the technical solutions of the present disclosure still belong to the protection scope of the technical solutions of the present disclosure.

Claims

A refrigerator, characterized in that it includes:

box door;

The vacuum packaging device is arranged on the box door; the vacuum packaging device includes:

air extraction device;

An upper support and a lower support, one of the upper support and the lower support is fixedly connected to the box door, and the other is connected with a driving device and moves up and down under the action of the driving device; the upper support After the seat and the lower support are moved to butt joints, the cavity between the two forms a vacuuming area that is communicated with the air-extracting device;

a heating wire, which is arranged on one of the upper support and the lower support, and is arranged in the area where the upper support and the lower support are opposite;

The temperature sensor is arranged on the upper support or the lower support where the heating wire is located; the temperature sensor is provided with a heat-conducting cover outside, and the heat-conducting cover is in contact with the heating wire, so that the heating wire The temperature can be conducted to the temperature sensor through the thermally conductive housing.
The refrigerator according to claim 1, wherein a heat insulation sheet is provided between the upper support or the lower support where the heating wire is located and the heating wire.
The refrigerator according to claim 2, wherein a first perforation is formed on the upper support or the lower support where the heating wire is located, and a second perforation is formed on the heat insulating sheet; The second through holes are matched to form an accommodating portion for accommodating the heat conducting shell.
The refrigerator according to claim 3, wherein a limit plate corresponding to the first through hole is provided on the side of the upper support or the lower support where the heating wire is located away from the heating wire; A compression spring is installed between the heat-conducting cover and the limiting plate.
The refrigerator according to claim 4, wherein a first fixing part is arranged on the top of the heat conduction cover, a second fixing part is arranged at the lower end of the limiting plate; one end of the compression spring is connected to the first fixing part. A fixing part is connected, and the other end is connected with the second fixing part.
The refrigerator according to claim 4, wherein one end of the limiting plate is inclined upward to form a guide plate.
The refrigerator according to any one of claims 1-5, characterized in that, a packaging hole is provided on the heat-conducting cover, and the temperature sensor is inserted into the interior of the heat-conducting cover through the packaging hole.
The refrigerator according to claim 7, wherein a first limiting portion is provided inside the heat conducting cover, and a detachable first limiting member is provided at the packaging hole; The first limiting part, the inner wall of the heat-conducting casing and the first limiting member cooperate to define an accommodating cavity adapted to the shape of the temperature sensor.
The refrigerator according to claim 8, wherein the first limiting member is made of high temperature resistant epoxy resin.
The refrigerator according to claim 1, wherein a heat conducting sheet is provided on the side of the heating wire away from the upper support or the lower support where it is located.