Refrigerator

Abstract

The refrigerator comprises a freezing inner container, a refrigerating inner container and an air pressure balance mechanism, the air pressure balance mechanism comprises a communication pipeline, a sealing body and an elastic piece, the communication pipeline is connected and communicated with the freezing inner container and the refrigerating inner container, and the sealing body is movably installed in the communication pipeline, abuts against the elastic piece and is used for controlling connection / disconnection of the communication pipeline. According to the refrigerator, one-way communication between the freezing inner container and the refrigerating inner container can be achieved, when the air pressure in the freezing inner container is reduced, the refrigerating inner container can automatically communicate with the freezing inner container through the communicating pipeline, air is supplemented into the freezing inner container, and therefore the pressure difference between the freezing inner container and the outside air can be reduced, and the refrigerating effect is improved. Therefore, the door opening force needed when a user opens the freezing refrigerator door on the freezing inner container again can be reduced, and the effect of opening the door conveniently is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the refrigerator freezing chamber door related technical field, especially, it relates to a refrigerator. BACKGROUND

[0002] At present, the existing double system or multi-system refrigerator, the freezing chamber is usually communicated with the outside through the bottom drain hole, so that the freezing chamber internal air pressure and the outside air pressure keep balance. Among them, the freezing chamber internal air pressure will reduce in the process of the refrigerator running, especially when the freezing refrigerator door is just closed, the outside hot air will enter into the freezing chamber, and the hot air will precool and shrink in the freezing chamber, causing the volume to reduce, so that the freezing chamber internal air pressure will reduce, so that the user needs greater opening force when opening the freezing refrigerator door again, and it is more difficult to open the door. SUMMARY

[0003] Therefore, it is necessary to provide a refrigerator for solving the above technical problems.

[0004] A refrigerator, the refrigerator comprising:

[0005] A freezing liner;

[0006] A refrigerating liner;

[0007] An air pressure balance mechanism, comprising a communication pipeline, a sealing body and an elastic piece, the communication pipeline is connected with and communicated with the freezing liner and the refrigerating liner, the sealing body is movably installed in the communication pipeline and abuts against the elastic piece, and is used for controlling the opening / closing of the communication pipeline.

[0008] It can be understood that the freezing liner and the refrigerating liner are communicated by the communication pipeline, and the opening / closing of the communication pipeline is controlled by the sealing body abutting against and supported by the elastic piece in the communication pipeline, so that one-way conduction between the freezing liner and the refrigerating liner is realized, so that when the air pressure in the freezing liner decreases, the refrigerating liner can automatically communicate with the freezing liner through the communication pipeline and supplement the gas in the freezing liner, so that the pressure difference between the freezing liner and the outside air can be reduced, so that the opening force required by the user when opening the freezing refrigerator door on the freezing liner again can be reduced, and the opening of the door is facilitated.

[0009] In one of the embodiments, the elastic piece abuts against the sealing body in a pre-compressed manner, the minimum pre-tightening force of the elastic piece on the sealing body is set as F X , and the passage area of the communication pipeline is set as S.

[0010] When the pressure difference between the refrigerating liner and the freezing liner is greater than F XWhen the elastic member is compressed, the refrigeration liner and the freezing liner are communicated through the communication pipeline.

[0011] In one embodiment, the elastic member is a compression spring.

[0012] It can be understood that the compression spring is used to reduce the cost.

[0013] In one embodiment, the communication pipeline is provided with an extension protruding ring, which is inserted into the compression spring and limits the assembly of the compression spring in the communication pipeline.

[0014] It can be understood that the extension protruding ring and the compression spring are inserted into each other to limit the assembly of the compression spring in the communication pipeline, which facilitates the assembly of the compression spring in the communication pipeline and ensures that the compression spring can provide stable pre-tightening force to the sealing body.

[0015] In one embodiment, the sealing body is a spherical structure.

[0016] In one embodiment, the air pressure balancing mechanism further comprises a compression cover which is connected to the communication pipeline in an inserted manner and abuts against the sealing body to compress and limit the sealing body in the communication pipeline.

[0017] The communication pipeline is communicated with the refrigeration liner through the compression cover.

[0018] It can be understood that the compression cover is used to compress and assemble the sealing body in the communication pipeline, which meets the use requirement that the sealing body controls the communication pipeline to be on or off.

[0019] In one embodiment, the air pressure balancing mechanism further comprises a refrigeration connecting plate which is arranged in the refrigeration liner and abuts against the compression cover and the liner wall of the refrigeration liner to compress and limit the compression cover on the liner wall.

[0020] The refrigeration connecting plate, the liner wall and the communication pipeline are connected and fixed.

[0021] It can be understood that the refrigeration connecting plate is used to facilitate the assembly and connection between the communication pipeline and the refrigeration liner, which meets the use requirement that the communication pipeline is communicated with the refrigeration liner.

[0022] In one of the embodiments, the refrigerator further comprises a connecting piece capable of being screwed with the communicating pipe after sequentially passing through the refrigeration connecting plate and the tank wall of the refrigeration tank.

[0023] It can be understood that, through the above structure, the refrigeration connecting plate and the communicating pipe can be conveniently assembled and connected on the tank wall of the refrigeration tank.

[0024] In one of the embodiments, the communicating pipe is attached to and fixed with the freezing tank.

[0025] In one of the embodiments, a foaming layer is arranged between the refrigeration tank and the freezing tank, and the communicating pipe is arranged in the foaming layer.

[0026] Due to the application of the above technical solution, the refrigerator of the present application has the following advantages compared with the prior art:

[0027] The refrigerator claimed in the present application uses a communicating pipe to communicate the freezing tank and the refrigeration tank, and controls the opening / closure of the communicating pipe through a sealing body abutted and supported by an elastic piece, so that one-way conduction between the freezing tank and the refrigeration tank is realized, and when the air pressure in the freezing tank decreases, the refrigeration tank can automatically communicate with the freezing tank through the communicating pipe and supplement air into the freezing tank, so that the pressure difference between the freezing tank and the outside air can be reduced, and the opening force required when the user opens the freezing refrigerator door again can be reduced, thereby facilitating the opening of the door. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0029] Figure 1 The structure diagram of the refrigerator provided by the present application.

[0030] Figure 2 The structure diagram of the refrigerator provided by the present application.

[0031] Figure 3 The Figure 2 A-A sectional view in the middle.

[0032] Figure 4 The Figure 3 P part enlarged view in the middle.

[0033] Reference numerals: 100, refrigerator; 10, freezer liner; 20, refrigerator liner; 21, liner wall; 30, pressure balancing mechanism; 31, connecting pipe; 311, extension ring; 32, sealing body; 33, elastic element; 331, compression spring; 34, pressure cap; 35, refrigerator connecting plate. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that when a component is said to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "located on" another component, it can be directly located on the other component or may have an intervening component. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or may have an intervening component.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] The refrigerator 100 that this application seeks to protect specifically refers to a dual-system refrigerator or a multi-system refrigerator.

[0038] like Figures 1 to 4 As shown, a refrigerator 100 provided in one embodiment of this application includes a freezer inner liner 10, a refrigerator inner liner 20, and a pressure balancing mechanism 30. The pressure balancing mechanism 30 includes a connecting pipe 31, a sealing body 32, and an elastic element 33. The connecting pipe 31 is connected and communicates with the freezer inner liner 10 and the refrigerator inner liner 20. The sealing body 32 is movably installed in the connecting pipe 31 and abuts against the elastic element 33, and is used to control the opening / closing of the connecting pipe 31.

[0039] As can be seen, in the refrigerator 100, the freezing inner container 10 and the refrigerating inner container 20 are communicated by the communication pipeline 31, and the sealing body 32 abuttingly supported by the elastic member 33 is used to control the opening / closing of the communication pipeline 31, so that the one-way communication between the freezing inner container 10 and the refrigerating inner container 20 is realized, and when the air pressure in the freezing inner container 10 decreases, the refrigerating inner container 20 can automatically communicate with the freezing inner container 10 through the communication pipeline 31 and supplement the air in the freezing inner container 10, so that the pressure difference between the freezing inner container 10 and the outside air can be reduced, and the opening force required by the user when opening the freezing refrigerator door (not shown in the figure) of the freezing inner container 10 can be reduced, thereby facilitating the opening of the door.

[0040] As shown in Figure 4 , in the present application, the elastic member 33 abuts against the sealing body 32 in a pre-compressed manner, the minimum pre-tightening force of the elastic member 33 on the sealing body 32 is set as F X , and the passage area of the communication pipeline 31 is set as S; in this way, when the pressure difference between the refrigerating inner container 20 and the freezing inner container 10 is greater than F X / S, the elastic member 33 can be compressed to enable the communication between the refrigerating inner container 20 and the freezing inner container 10 through the communication pipeline 31.

[0041] It should be noted that the opening force of the user when pulling out the freezing refrigerator door needs to overcome not only the initial pre-tightening force of the guide rail between the freezing inner container 10 and the freezing refrigerator door and the door seal suction force of the freezing refrigerator door, but also the resistance generated by the freezing refrigerator door due to the air pressure difference between the inside and outside. By supplementing the air in the freezing inner container 10 through the communication pipeline 31 by the refrigerating inner container 20, the opening force required by the user when opening the freezing refrigerator door can be reduced. Here, when the opening force needs to be less than 60N, the user can easily pull out the freezing refrigerator door, the initial pre-tightening force of the guide rail is required to be less than 8N, and the door seal suction force is calculated to be greater than 40N, and therefore the force generated by the freezing refrigerator door due to the air pressure difference between the inside and outside is required to be less than 12N.

[0042] In the present application, a foaming layer (not shown in the figure) is arranged between the refrigerating inner container 20 and the freezing inner container 10, and the communication pipeline 31 is arranged in the foaming layer.

[0043] As shown in Figure 4 , the sealing body 32 is configured in a spherical structure, and here the sealing body 32 can be configured as a steel ball. It can be understood that the sealing body 32 is not limited to the spherical structure shown in the figure, and in other embodiments, the sealing body 32 can also be configured as a rubber check valve, which will not be described here.

[0044] As shown in Figure 4As shown, the elastic member 33 is configured as a compression spring 331, so that the elastic member 33 can be locally sourced by using the structural features of the compression spring 331, thereby reducing the cost. It can be understood that the elastic member 33 is not limited to the compression spring 331 as shown, and in other embodiments, the elastic member 33 can also be configured as a rubber sleeve or other elastic member, which will not be described here.

[0045] As shown in Figure 4 As shown, the communication pipe 31 is formed with an extension protruding ring 311, which can be inserted and matched with the compression spring 331, and thereby limits the assembly of the compression spring 331 in the communication pipe 31, so that the assembly of the compression spring 331 in the communication pipe 31 can be limited, and thus the assembly of the compression spring 331 in the communication pipe 31 can be facilitated, and the compression spring 331 can provide stable pre-tightening force to the sealing body 32.

[0046] As shown in Figure 4 As shown, the gas pressure balancing mechanism 30 further comprises a gland 34 connected to the communication pipe 31 in an inserted and matched manner and capable of abutting against the sealing body 32, for pressing and limiting the sealing body 32 in the communication pipe 31; wherein the communication pipe 31 can be communicated with the refrigeration liner 20 through the gland 34. That is, the gland 34 can assemble the sealing body 32 of the pre-pressing elastic member 33 in the communication pipe 31, and the gland 34 will not affect the conduction between the communication pipe 31 and the refrigeration liner 20, so as to meet the use requirement that the sealing body 32 can control the communication pipe 31 to be on / off.

[0047] As shown in Figure 4 As shown, the gas pressure balancing mechanism 30 further comprises a refrigeration connecting plate 35 arranged in the refrigeration liner 20 and abutting against the liner wall 21 of the refrigeration liner 20 and the gland 34, for pressing and limiting the gland 34 on the liner wall 21; wherein the refrigeration connecting plate 35, the liner wall 21 and the communication pipe 31 are connected and fixed. That is, when the communication pipe 31 needs to be assembled and connected with the refrigeration liner 20, the gland 34 can be inserted and matched with the communication pipe 31 after passing through the liner wall 21 of the refrigeration liner 20, and then the refrigeration connecting plate 35 is used to press and limit the gland 34 on the liner wall 21, and finally the refrigeration connecting plate 35, the liner wall 21 and the communication pipe 31 are connected and fixed, so that the assembly and connection between the communication pipe 31 and the refrigeration liner 20 can be facilitated, and the use requirement that the communication pipe 31 is communicated with the refrigeration liner 20 can be met.

[0048] In an embodiment, the refrigerator 100 further comprises connecting pieces (not shown in the figure) which can be screwed with the communicating pipe 31 after sequentially passing through the refrigerating connecting plate 35 and the tank wall 21. In this way, the refrigerating connecting plate 35 and the communicating pipe 31 can be assembled and connected on the tank wall 21 of the refrigerating tank 20 by using the threaded structure between the connecting pieces and the communicating pipe 31. Here, the number of the connecting pieces is configured as two, and the two connecting pieces are separately arranged on the two sides of the grommet 34, and specifically, the connecting pieces can be configured as bolts, screws or the like.

[0049] In an embodiment, the communicating pipe 31 is attached to and fixed with the freezing tank 10. Here, the assembly and connection between the communicating pipe 31 and the freezing tank 10 can be achieved by welding, and the assembly and sealing between the communicating pipe 31 and the freezing tank 10 can also be achieved by welding.

[0050] In summary, the refrigerator 100 of the present application adds the communicating pipe 31 which communicates with each other between the freezing tank 10 and the refrigerating tank 20, and uses the sealing body 32 and the elastic piece 33 to realize the one-way conduction of the communicating pipe 31, so that when the pressure difference between the freezing tank 10 and the refrigerating tank 20 is large enough, the communicating pipe 31 is opened by the extrusion of the sealing body 32 by the gas in the refrigerating tank 20, so that the gas in the refrigerating tank 20 can flow into the freezing tank 10 through the communicating pipe 31, which can reduce the opening force required when the freezing refrigerator door is opened, and facilitate the opening of the door.

[0051] The technical features of the above embodiments can be combined in any way. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present application.

[0052] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation of the present application. Any appropriate changes and variations of the above embodiments within the scope of the present application are within the scope of the present application.

Claims

1. A refrigerator, characterized in that, The refrigerator (100) includes: Frozen inner liner (10); Refrigerated inner liner (20); The air pressure balancing mechanism (30) includes a connecting pipe (31), a sealing body (32), and an elastic element (33). The connecting pipe (31) is connected to and communicates with the freezing inner liner (10) and the refrigeration inner liner (20). The sealing body (32) is movably installed in the connecting pipe (31) and abuts against the elastic element (33) to control the opening / closing of the connecting pipe (31).

2. The refrigerator according to claim 1, characterized in that, The elastic element (33) abuts against the sealing body (32) in a pre-compressed manner, and the minimum pre-tightening force of the elastic element (33) on the sealing body (32) is set to F. X The channel area of ​​the connecting pipe (31) is set to S; When the pressure difference between the refrigerated inner liner (20) and the frozen inner liner (10) is greater than F X When / S, the elastic element (33) can be compressed so that the refrigerated inner liner (20) and the frozen inner liner (10) are connected through the connecting pipe (31).

3. The refrigerator according to claim 1, characterized in that, The elastic element (33) is configured as a compression spring (331).

4. The refrigerator according to claim 3, characterized in that, An extension protrusion (311) is formed on the connecting pipe (31), which can be inserted and engaged with the compression spring (331) to limit the compression spring (331) to be installed inside the connecting pipe (31).

5. The refrigerator according to claim 1, characterized in that, The sealing body is configured as a spherical structure.

6. The refrigerator according to claim 1, characterized in that, The air pressure balancing mechanism (30) also includes a pressure cap (34), which is connected to the connecting pipe (31) by a plug-in engagement and can abut against the sealing body (32) to press and limit the sealing body (32) into the connecting pipe (31). The connecting pipe (31) can be connected to the refrigerator inner liner (20) through the pressure cap (34).

7. The refrigerator according to claim 6, characterized in that, The air pressure balancing mechanism (30) also includes a refrigeration connecting plate (35), which is disposed inside the refrigeration inner liner (20) and abuts against the cap (34) and the inner wall (21) of the refrigeration inner liner (20) respectively, for pressing and limiting the cap (34) to the inner wall (21); The refrigeration connecting plate (35), the inner wall (21) and the connecting pipe (31) are connected and fixed together.

8. The refrigerator according to claim 7, characterized in that, The refrigerator (100) also includes a connector that can be screwed into the connecting pipe (31) after passing through the refrigeration connecting plate (35) and the inner wall (21) in sequence.

9. The refrigerator according to claim 1, characterized in that, The connecting pipe (31) is attached to the freezing inner liner (10) and connected and fixed to the freezing inner liner (10).

10. The refrigerator according to claim 1, characterized in that, A foam layer is provided between the refrigerated inner liner (20) and the frozen inner liner (10), and the connecting pipe (31) is provided inside the foam layer.

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