CN115111830A

CN115111830A - A kind of refrigerator

Info

Publication number: CN115111830A
Application number: CN202110299421.9A
Authority: CN
Inventors: 许锦潮; 周晓东; 胡哲; 朱雪峰
Original assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Current assignee: Hisense Ronshen Guangdong Refrigerator Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2022-09-27

Abstract

The invention relates to the technical field of vacuum preservation, and discloses a refrigerator which comprises a refrigerator body, a refrigerator door and a vacuum drawer, wherein a refrigerating chamber is limited in the refrigerator body, and the refrigerator door is used for opening and closing the refrigerating chamber; locate the vacuum drawer in the freezer and include: a storage case having a forward opening and provided with a first air port; a drawer door provided at the forward opening for opening and closing the storage case; the interlayer shell is sleeved outside the storage shell and surrounds the other side walls of the storage shell except the side wall where the front opening is located, a first closed transition cavity is formed between the interlayer shell and the storage shell, and the interlayer shell is provided with a second air port. The vacuum drawer in the refrigerator forms a differential pressure transition layer between the interlayer shell and the storage shell, so that the maximum pressure borne by the cavity wall of the vacuum drawer is effectively reduced, the material strength requirement of a vacuum cavity is reduced, reinforcing ribs are not required to be designed, the manufacturing difficulty and cost of the vacuum drawer are greatly reduced, and the structural reliability is improved.

Description

A kind of refrigerator

Technical Field

The invention relates to the technical field of vacuum preservation, in particular to a refrigerator.

Background

With the development of fresh-keeping technology, air conditioning technology is gradually applied to refrigerator products, such as refrigerators with vacuumizing preservation function.

The main principle of vacuum preservation is that a micro vacuum pump is used for pumping a part of gas in a closed food storage space (drawer/box), partial vacuum is realized in the storage space, the internal gas partial pressure is reduced, the oxygen concentration is reduced, the low-oxygen environment is realized, and the purpose of prolonging the food storage period is achieved.

Because the interior of the vacuum drawer of the refrigerator is under negative pressure, the pressure difference between the interior of the vacuum drawer and the normal atmospheric pressure of the outside causes the wall of the drawer to be under great pressure. In order to reduce the risk of deformation and cracking due to pressure difference, the strength of the vacuum drawer cavity needs to be enhanced. At present, the drawer cavity of the refrigerator vacuum drawer in the prior art is usually of a single-layer structure, and the drawer cavity needs to be made of glass fiber-added plastic or metal materials, so that the manufacturing cost is high. Meanwhile, a large number of reinforcing rib designs are required to be added, which greatly increases the manufacturing difficulty and cost of the vacuum drawer. Moreover, even if the method for increasing the strength of the drawer cavity is used, the problems caused by large pressure difference such as excessive deformation, pressure damage and the like still exist.

Thus, improvements in the prior art are needed.

Disclosure of Invention

The purpose of the invention is: the refrigerator is provided to solve the technical problems that the drawer cavity of the single-layer refrigerator vacuum drawer in the prior art needs to be made of expensive materials, a large number of reinforcing ribs need to be added, and the manufacturing difficulty and cost of the vacuum drawer are greatly increased.

In order to achieve the above object, the present invention provides a refrigerator including:

a cabinet defining a refrigerating chamber therein;

a door for opening and closing the refrigerating chamber;

wherein, still including locating vacuum drawer in the freezer, vacuum drawer includes:

a storage case having a forward opening and provided with a first air port;

a drawer door provided at the forward opening for opening and closing the storage case;

the interlayer shell is sleeved outside the storage shell and surrounds the other side walls of the storage shell except the side wall where the forward opening is located, and a closed first transition cavity is formed between the interlayer shell and the storage shell; the interlayer shell is provided with a second air port.

In some embodiments of the application, the interlayer casing is equipped with at least two, and overlaps from inside to outside in proper order and locates the outside of storage casing, the innermost interlayer casing with form between the storage casing first transition cavity, every adjacent two-layer form inclosed second transition cavity between the interlayer casing.

In some embodiments of the present application, a check valve is disposed at the second gas port.

In some embodiments of the present application, the first air inlet is connected to a first air tube, and the first air tube extends outwards and penetrates through the side wall of the interlayer shell.

In some embodiments, the first air port is disposed on a rear sidewall of the storage housing and the second air port is disposed on a rear sidewall of the compartment housing.

In some embodiments of the present application, a second air tube is connected to the second air port.

In some embodiments of the present application, further comprising a vacuum pump; the first air pipe and the second air pipe are communicated with the vacuum pump.

In some embodiments of the present application, the system further comprises an electronic gas valve; the first air pipe and the second air pipe are communicated with the vacuum pump through the electronic air valve.

In some embodiments of the present application, the drawer door and the compartment housing form an openable and closable connection through a locking assembly.

In some embodiments of the present invention, a sealing strip is provided on an inner surface of the drawer door and/or at a forward opening edge of the storage casing.

Compared with the prior art, the refrigerator provided by the embodiment of the invention has the beneficial effects that:

the refrigerator provided by the embodiment of the invention has the advantages that the vacuum drawer arranged in the refrigerator is of an at least double-layer structure, namely, the interlayer shell is arranged outside the storage shell, so that a transition cavity is formed between the interlayer shell and the storage shell, and the negative pressure value of the transition cavity is slightly higher than that in the storage shell through the vacuumizing equipment, so that a differential pressure transition layer is formed. Through the pressure difference transition layer, the maximum pressure born by the cavity wall of the vacuum drawer can be effectively reduced, so that the material strength requirement of the vacuum cavity is reduced, a reinforcing rib is not required to be designed, the manufacturing difficulty and cost of the vacuum drawer are greatly reduced, and the purposes of saving the cost and improving the structural reliability are achieved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of a front view of a vacuum drawer in a refrigerator according to an embodiment of the present invention;

FIG. 2 is a schematic rear view of a vacuum drawer in a refrigerator according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a vacuum drawer;

FIG. 4 is an enlarged view at A in FIG. 3;

FIG. 5 is an enlarged view at B in FIG. 3;

in the figure, 100, a vacuum drawer; 110. a storage case; 111. a first gas port; 112. a first air pipe; 120. a drawer door; 130. an interlayer shell; 131. a second air port; 132. a second air pipe; 140. a first transition cavity; 150. a one-way valve; 160. a locking assembly; 170. a sealing strip; 180. a vacuum pump; 190. an electronic gas valve.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

A refrigerator according to a preferred embodiment of the present invention mainly includes a cabinet, a door, and a vacuum drawer 100. Specifically, a refrigerating chamber is defined in the box body, the refrigerating chamber is provided with a front opening, and the box door is arranged at the front opening and used for opening and closing the refrigerating chamber. The vacuum drawer 100 is provided in a refrigerator compartment for use.

Referring to fig. 1-4, the vacuum drawer 100 includes at least a storage housing 110, a drawer door 120, and a compartment housing 130.

Specifically, the storage case 110 has a forward opening and is provided with a first air port 111. Drawer door 120 is provided at a forward opening of storage housing 110 to open and close storage housing 110. The partition shell 130 is sleeved outside the storage shell 110 and surrounds the other side walls of the storage shell 110 except the side wall with the front opening to form a first transition cavity 140 with the storage shell 110, and the partition shell 130 is provided with a second air port 131.

When a user puts food into the storage case 110, closes the drawer door 120, and turns on the vacuum refreshing function, the vacuum-pumping device vacuums the interior of the storage case 110 through the first air port 111, so that a certain negative pressure B is formed in the storage case 110. Meanwhile, the first transition cavity 140 formed between the partition shell 130 and the storage shell 110 is vacuumized through the second air port 131, so that a certain negative pressure a is formed in the first transition cavity 140. If an atmospheric pressure value is 1, the above-mentioned value satisfies 1 > A > B.

According to 1 > A > B, the pressure differential experienced by the diaphragm casing 130 is 1-A and the pressure differential experienced by the storage casing 110 is A-B. In the prior art, the pressure difference born by the single-layer cavity wall is 1-B, 1 is more than A and more than B, so 1-A is less than 1-B, and A-B is less than 1-B, namely the pressure born by the interlayer shell 130 and the storage shell 110 is less than the pressure born by the single-layer cavity wall.

The invention provides a refrigerator, wherein a vacuum drawer arranged in the refrigerator is of an at least double-layer structure, an interlayer shell 130 is arranged outside a storage shell 110, a first transition cavity 140 is formed between the interlayer shell 130 and the storage shell 110, and the negative pressure value of the first transition cavity 140 is slightly higher than the negative pressure value in the storage shell 110 through a vacuum pumping device, so that a differential pressure transition layer is formed. Through the pressure difference transition layer, the maximum pressure borne by the cavity wall of the vacuum drawer can be effectively reduced, so that the material strength requirement of the vacuum cavity is reduced, a reinforcing rib is not required to be designed, the manufacturing difficulty and cost of the vacuum drawer are greatly reduced, and the purposes of saving the cost and improving the structural reliability are achieved.

In some embodiments of the present application, at least two interlayer housings 130 may be sequentially sleeved outside the storage housing 110 from inside to outside, a first transition cavity 140 is formed between the innermost interlayer housing 110 and the storage housing 130, and a second closed transition cavity is formed between every two adjacent interlayer housings 130. A second port 131 is connected to each of the barrier shells 130, so that the first transition chamber 140 and each of the second transition chambers have different pressure differences. The arrangement of the multi-layer transition cavity structure can form a plurality of pressure difference transition layers, and the air pressure difference can be smoothly and smoothly transitioned.

In some embodiments of the present application, referring to fig. 3 and 4, a check valve 150 is disposed at the second air port 131. After the first transition chamber 140 is evacuated by the evacuation device, the check valve 150 moves towards the storage housing 110 due to the difference between the internal pressure and the external pressure, so as to close the second air port 131, and the first transition chamber 140 becomes a space (similar to the inflation valve structure of a tire) capable of maintaining a certain negative pressure value for a long time. The storage housing 110 is a food storage and fresh-keeping space, and the storage housing 110 is pumped after a user opens the drawer or a period of time, so as to maintain the negative pressure value in the area and ensure the storage and fresh-keeping effect.

In some embodiments of the present application, referring to fig. 3 and 4, a first air pipe 112 is connected to the first air opening 111, and the first air pipe 112 extends outwards and penetrates through a side wall of the partition shell 130, so that the vacuum pumping device can pump air to the storage shell 110 through the first air opening 111.

In some embodiments of the present application, referring to fig. 3 and 4, the first air port 111 is disposed on the rear sidewall of the storage housing 110, and the second air port 131 is disposed on the rear sidewall of the partition housing 130, so as to prevent the vacuum pumping device and the related air pipe structure from being exposed to the visible range of the user, thereby effectively increasing the aesthetic property.

In some embodiments of the present application, referring to fig. 3 and 4, a second air pipe 132 is connected to the second air port 131 to facilitate the vacuum-pumping device to pump air to the barrier housing 130 through the second air port 131.

In some embodiments of the present application, referring to fig. 2, a vacuum pump 180 is also included. The first air pipe 112 and the second air pipe 132 are both communicated with a vacuum pump 180, and the vacuum pump 180 can pump air to the first air pipe 112 and/or the second air pipe 132.

In some embodiments of the present application, referring to fig. 2, the electronic gas valve 190 is further included, and the first gas pipe 112 and the second gas pipe 132 are communicated with the vacuum pump 180 through the electronic gas valve 190, so as to form an electronic control pipeline system. When the vacuum pump 180 stops working, the piping system forms a closed space, which prevents gas from entering the vacuum drawer components. When the vacuum pump 180 performs air extraction, the corresponding drawer part can be extracted according to the control of the electronic gas valve 190, and gas is exhausted to the atmospheric environment, so that the vacuum pump is convenient and efficient.

In some embodiments of the present application, referring to fig. 1 and 2, the drawer door 120 and the outer wall of the compartment casing 130 form an openable and closable connection, specifically, a flip connection, through the locking component 160, so as to facilitate a user to open and close the drawer door 120 and ensure the connection stability between the drawer door 120 and the storage casing 110.

In some embodiments of the present application, referring to fig. 5, a sealing strip 170 is provided at an inner surface of the drawer door 120 to further ensure the sealability between the drawer door 120 and the storage case 110. In some embodiments, the sealing strip 170 may be provided at the forward opening edge of the storage housing 110, or the sealing strip 170 may be provided at both the inner surface of the drawer door 120 and the forward opening edge of the storage housing 110 to cooperate with each other to form a stable sealing structure.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A refrigerator, comprising:

a cabinet defining a refrigerating chamber therein;

a door for opening and closing the refrigerating chamber;

its characterized in that still including locating vacuum drawer in the freezer, vacuum drawer includes:

a storage case having a forward opening and provided with a first air port;

2. The refrigerator as claimed in claim 1, wherein the compartment housings are provided with at least two compartments, and are sequentially sleeved outside the storage housing from inside to outside, the first transition chamber is formed between the innermost compartment housing and the storage housing, and a closed second transition chamber is formed between every two adjacent compartment housings.

3. The refrigerator according to claim 1 or 2, wherein a check valve is provided at the second air port.

4. The refrigerator of claim 1 or 2, wherein a first air pipe is connected to the first air port, and the first air pipe extends outwards and penetrates out of the side wall of the interlayer shell.

5. The refrigerator as claimed in claim 1, wherein the first air port is provided at a rear sidewall of the storage case, and the second air port is provided at a rear sidewall of the barrier case.

6. The refrigerator of claim 4, wherein a second air tube is connected to the second air port.

7. The refrigerator according to claim 6, further comprising a vacuum pump; the first air pipe and the second air pipe are communicated with the vacuum pump.

8. The refrigerator of claim 7, further comprising an electronic gas valve; the first air pipe and the second air pipe are communicated with the vacuum pump through the electronic air valve.

9. The refrigerator as claimed in claim 1, wherein the drawer door is coupled to the compartment housing in an openable and closable manner by a locking assembly.

10. The refrigerator of claim 1, wherein a sealing strip is provided on an inner surface of the drawer door and/or an edge of the forward opening of the storage case.