CN216402407U

CN216402407U - Battery box with multiple sealing structure

Info

Publication number: CN216402407U
Application number: CN202122709037.XU
Authority: CN
Inventors: 郭锋; 雷同
Original assignee: Shenzhen Center Power Tech Co Ltd
Current assignee: Shenzhen Center Power Tech Co Ltd
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-04-29
Anticipated expiration: 2031-11-03

Abstract

The utility model provides a battery box with a multiple sealing structure, which comprises a box body, a box cover and a sealing strip arranged between the box body and the box cover; the top edge of the box body is provided with a skirt structure; the bottom edge of the box cover is provided with a height stopping structure matched with the skirt structure; the skirt edge structure is connected with the height stopping structure through bolts; the bottom of the sealing strip is abutted against the skirt structure, and the top of the sealing strip is abutted against the box cover. The sealing strips are arranged into an integral structure, so that the problem of gaps existing in the end-to-end positions of the sealing strips is thoroughly solved. Through set up multiple seal structure in box and case lid butt department, can prevent fine particulate matter and aqueous vapor thing from entering into in the box, guaranteed that the box is inside not disturbed by external factor. The box body and the box cover are firmly connected through the bolts, so that the problem that the box cover is loosened due to the fact that air pressure in the box body is increased is effectively solved.

Description

Battery box with multiple sealing structure

Technical Field

The utility model relates to the technical field of battery box sealing, in particular to a battery box with a multiple sealing structure.

Background

In the face of the increasingly strict exhaust emission standards in China and even in the world at present and the future energy crisis, various automobile manufacturers are developing low-emission new energy technologies to adapt to the development trend. The pure electric vehicle is one of the fields of vigorous research and development of various large vehicle enterprises at present, and energy supply equipment of the pure electric vehicle is a battery box. To ensure safe use, the battery box is usually sealed. Generally, the battery box has a main sealing position besides the sealing position required by the accessories on the box body, namely the sealing of the box cover and the box body, and the box cover needs to be frequently disassembled for inspection or maintenance, so the sealing reliability between the box cover and the box body is very important.

The existing sealing between the box body and the box cover is mainly realized by sticking a plurality of end-to-end sealing strips between the box body and the box cover, and the box cover compresses the sealing strips in the process of compressing the box body due to certain elasticity of the sealing strips so as to achieve the sealing effect. However, the adopted sealing strips are a plurality of sealing strips connected end to end and are not a whole, and gaps exist at the positions of corner edges, so that the sealing effect is poor; moreover, because the area of the box cover is large, when the air pressure in the box body rises (if the air tightness of the box body is detected by inflation), the box cover can bulge, the force of the box cover for pressing the sealing strip is directly influenced, the air in the box body can be extruded out at the position where the sealing strip is not pressed, the sealing reliability between the box body and the box cover is low, and potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Based on the above, the utility model provides a battery box with a multiple sealing structure, and aims to solve the problems that the existing sealing strips are a plurality of sealing strips which are connected end to end and are not integrated, and gaps exist at the positions of corner edges, so that the sealing effect between a box body and a box cover is poor; moreover, because the area of the case cover is large, when the air pressure in the case body rises, the case cover can bulge, the force for pressing the sealing strip by the case cover is directly influenced, the gas in the case body can be extruded out at the position where the sealing strip is not pressed, the sealing reliability between the case body and the case cover is low, and the problem of potential safety hazard exists.

In order to achieve the purpose, the utility model provides the following technical scheme:

a battery box with a multiple sealing structure comprises a box body, a box cover and a sealing strip arranged between the box body and the box cover; the top edge of the box body is provided with a skirt structure; the bottom edge of the box cover is provided with a height stopping structure matched with the skirt structure; the skirt edge structure is connected with the height stopping structure through bolts; the bottom of the sealing strip is abutted with the skirt structure, and the top of the sealing strip is abutted with the box cover; one side of the sealing strip is abutted to the height stopping structure, and the other side of the sealing strip extends to the inside of the box body.

In the application, the skirt edge structure is abutted with the height stopping structure to form a first sealing structure, so that large particles can be effectively prevented from entering the box body through a gap between the box body and the box cover; the sealing strip is used as a second sealing structure, and can effectively prevent micro particles and partial water vapor from entering the box body. The height stopping structure can effectively prevent the sealing strip from being compressed excessively to generate permanent deformation and lose the sealing effect. When the height stopping structure is abutted to the skirt edge structure, the compression amount of the sealing strip is 60% -70%, so that the sealing effect can be realized, and the sealing strip can be prevented from being compressed excessively.

Furthermore, one side of the skirt structure close to the interior of the box body is also provided with an outer convex structure. When the case lid down pushes down, the sealing strip can extrude the evagination structure for sealing strip self produces deformation under the extrusion, thereby forms third seal structure, third seal structure can completely cut off external aqueous vapor and enter into the box.

Further, the convex structure is a cambered convex structure. The convex structure with one side that the sealing strip contacted sets up to cambered surface convex structure, both can be right the sealing strip plays the effect of compression, can prevent again that convex structure from causing the damage to the sealing strip.

Furthermore, a step structure is arranged on one side, close to the box body, of the sealing strip; the ladder structure is abutted against the convex structure. The ladder structure can be used for placing the sealing strip and playing a role in prepositioning, and can also be used for preventing the sealing strip from deviating towards the outer side when the box cover is pressed down.

Further, a middle hole is formed in the sealing strip. The mesopore can strengthen the elasticity of sealing strip effectively, improves the life of sealing strip.

Furthermore, a plurality of handles are arranged on two sides of the box body; the handle may provide support when transferring the case.

Furthermore, the bottom of the box body is also provided with a plurality of anti-skidding grooves. The anti-skidding groove can play skid-proof effect, makes the box is difficult for sliding, is convenient for keep in or use.

Furthermore, a plurality of first screw holes are uniformly formed in the skirt edge structure.

Furthermore, a plurality of second screw holes are uniformly formed in the height stopping structure; the second screw holes correspond to the first screw holes one to one.

In this application, first screw with the back is good to the second screw one-to-one, utilizes the bolt to connect, makes the case lid can compress tightly the sealing strip, and fixes on the box.

Further, the sealing strip is a rubber sealing strip. The rubber sealing strip has good elasticity, is easy to process, and is economical and practical.

According to the battery box with the multiple sealing structures, the sealing strips are arranged into the integral structure, so that the problem of gaps existing at the end-to-end positions of the sealing strips is thoroughly solved. Through setting up multiple seal structure in box and case lid butt play, can prevent fine big particulate matter, small particulate matter and aqueous vapor thing from entering into in the box, guaranteed that the box is inside not disturbed by external factor. The box body and the box cover are firmly connected through the bolts, so that the problem that the box cover is loosened due to the fact that air pressure in the box body is increased is effectively solved. Moreover, compare in the current structure that only the individual layer sealed terminal surface, this application has formed the second seal structure and the third seal structure through having increased the interface of two-layer with the battery box contact on the movable of sealing strip, quiet terminal surface, has showing the sealed effect that has promoted the battery box. The novel steel wire rope has the advantages of low cost, good machinability, economy, practicability, simple structure, convenience in installation, stability and reliability.

Drawings

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

Fig. 1 is an exploded view of a battery case having a multi-sealing structure according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of FIG. 1;

FIG. 3 is an enlarged view of portion A of FIG. 2;

fig. 4 is a perspective view of the weather strip of fig. 1.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The existing sealing between the box body and the box cover is mainly realized by sticking a plurality of end-to-end sealing strips between the box body and the box cover, and the box cover compresses the sealing strips in the process of compressing the box body due to certain elasticity of the sealing strips so as to achieve the sealing effect. However, the adopted sealing strips are a plurality of sealing strips connected end to end and are not a whole, and gaps exist at the positions of corner edges, so that the sealing effect is poor; moreover, because the area of the box cover is large, when the air pressure in the box body rises (if the air tightness of the box body is detected by inflation), the box cover can bulge, the force of the box cover for pressing the sealing strip is directly influenced, the air in the box body can be extruded out at the position where the sealing strip is not pressed, the sealing reliability between the box body and the box cover is low, and potential safety hazards exist. In order to solve the technical problem, the utility model provides a battery box with multiple sealing structures.

As shown in fig. 1 to 3, a battery box with multiple sealing structures according to an embodiment of the present invention includes a box body 1, a box cover 2, and a sealing strip 3 disposed between the box body 1 and the box cover 2; a skirt edge structure 11 is arranged at the edge of the top of the box body 1; the bottom edge of the box cover 2 is provided with a height stopping structure 21 matched with the skirt structure 11; the skirt edge structure 11 is connected with the height stopping structure 21 through bolts 4; the bottom of the sealing strip 3 is abutted with the skirt structure 11, and the top of the sealing strip 3 is abutted with the box cover 2; one side of the sealing strip 3 is abutted against the height stopping structure 21, and the other side of the sealing strip 3 extends to the inside of the box body 1.

In the embodiment of the present application, the skirt structure 11 abuts against the height stopping structure 21 to form a first sealing structure, which can effectively prevent large particles from entering the box body through the gap between the box body 1 and the box cover 2; the sealing strip 3 is used as a second sealing structure, and can effectively prevent micro particles and partial moisture from entering the box body 1. The height stop structure 21 can effectively prevent the sealing strip 3 from being compressed excessively to generate permanent deformation and lose the sealing effect. When the height stopping structure 21 abuts against the skirt edge structure 11, the compression amount of the sealing strip 3 is 60% -70%, the sealing effect can be achieved, the sealing strip 3 can be prevented from being excessively compressed, and the sealing strip 3 can be rapidly rebounded and reset. The compression amount of the sealing strip 3 is 60% -70%, which means that the volume of the sealing strip is reduced by 60% -70%.

Referring again to fig. 1, in the present embodiment, the skirt structure 11 is further provided with an outer convex structure 12 on a side close to the interior of the box body 1. When case lid 2 is down pressed, sealing strip 3 can extrude evagination structure 12 for sealing strip 3 self produces deformation under the extrusion, thereby forms third seal structure, third seal structure can completely cut off external aqueous vapor thing and enter into in the box 1.

In the present embodiment, the convex structure 12 is a cambered convex structure. One side that evagination structure 12 with sealing strip 3 contacts sets up to cambered surface evagination structure, both can be right sealing strip 3 plays the effect of compression, can prevent again that evagination structure 12 from causing the damage to sealing strip 3.

Referring to fig. 3 to 4, in the embodiment of the present application, a stepped structure 31 is provided on one side of the sealing strip 3 close to the box body 1; the stepped structure 31 abuts the outer convex structure 12. The stepped structure 31 may play a role of pre-positioning when the sealing strip 3 is placed, and may also prevent the sealing strip 3 from shifting to the outside when the box cover 2 is pressed down.

Referring again to fig. 3, in the embodiment of the present application, the sealing tape 3 is further provided with a central hole 32. The central hole 32 can effectively enhance the elasticity of the sealing tape 3, and improve the service life of the sealing tape 3.

Referring to fig. 1 again, in the embodiment of the present application, a plurality of handles 13 are further disposed on two sides of the box body 1; the handle 13 may provide support when transferring the case 1.

The bottom of the box body 1 is also provided with a plurality of anti-skid grooves 14. The anti-slip grooves 14 can play an anti-slip role, so that the box body 1 is not easy to slip and is convenient to store or use temporarily.

Referring again to fig. 1, in the embodiment of the present application, a plurality of first screw holes 111 are uniformly formed on the skirt structure 11.

A plurality of second screw holes 211 are uniformly formed in the height stopping structure 21; the second screw holes 211 correspond to the first screw holes 111 one to one.

In this embodiment of the application, after the first screw holes 111 and the second screw holes 211 are in one-to-one correspondence, the first screw holes and the second screw holes are connected by bolts, so that the case cover 2 can press the sealing strip 3 and is fixed on the case body 1. The total eighteen bolts 4 enable the box cover 2 and the box body 1 to be connected more stably and uniformly, so that the influence of external collision on the box cover 2 can be avoided, and the problem that the box cover 2 is loosened due to the increase of air pressure inside the box body 1 can be effectively solved.

In the embodiment of the present application, the sealing strip 3 is a rubber sealing strip. The rubber sealing strip has good elasticity, is easy to process, and is economical and practical.

In the embodiment of the present application, the side surface of the box body 1 is further provided with a corresponding input end or output end.

According to the battery box with the multiple sealing structures, which is provided by the embodiment of the utility model, the sealing strips 3 are arranged into an integral structure, so that the problem of gaps existing at the end-to-end positions of a plurality of sealing strips is thoroughly solved. Through setting up multiple seal structure in box and case lid butt play, can prevent fine big particulate matter, small particulate matter and aqueous vapor thing from entering into box 1 in, guaranteed that box 1 is inside not disturbed by external factor. The case body 1 and the case cover 2 are stably connected by using the bolts 4, thereby effectively preventing the case cover 2 from being loosened due to the increase of the air pressure inside the case body 1. Moreover, compare in the current structure that only has the individual layer seal terminal surface, this application has formed the second seal structure and the third seal structure through having increased the interface of two-layer with the battery box contact on the movable, quiet terminal surface of sealing strip 3, has shown the sealed effect that has promoted the battery box. The novel steel wire rope has the advantages of low cost, good machinability, economy, practicability, simple structure, convenience in installation, stability and reliability.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A battery box with a multiple sealing structure is characterized by comprising a box body, a box cover and a sealing strip arranged between the box body and the box cover; the top edge of the box body is provided with a skirt structure; the bottom edge of the box cover is provided with a height stopping structure matched with the skirt structure; the skirt edge structure is connected with the height stopping structure through bolts; the bottom of the sealing strip is abutted with the skirt structure, and the top of the sealing strip is abutted with the box cover; one side of the sealing strip is abutted to the height stopping structure, and the other side of the sealing strip extends to the inside of the box body.

2. The battery case having a multiple seal structure according to claim 1, wherein a side of the skirt structure adjacent to the interior of the case body is further provided with a convex structure.

3. The battery box having a multiple seal structure according to claim 2, wherein the convex structure is a cambered convex structure.

4. The battery box with multiple sealing structures according to claim 2, wherein a side of the sealing strip close to the box body is provided with a stepped structure; the ladder structure is abutted against the convex structure.

5. The battery box with multiple sealing structures according to claim 1, wherein the sealing strip is further provided with a central hole.

6. The battery box with multiple sealing structures according to claim 1, wherein a plurality of handles are further provided on both sides of the box body.

7. The battery box with a multiple sealing structure according to claim 1, wherein the bottom of the box body is further provided with a plurality of anti-slip grooves.

8. The battery box having a multiple seal structure of claim 1, wherein said skirt structure is uniformly provided with a plurality of first screw holes.

9. The battery box with multiple sealing structures according to claim 8, wherein the height stopping structure is uniformly provided with a plurality of second screw holes; the second screw holes correspond to the first screw holes one to one.

10. The battery box with a multiple seal structure according to claim 1, wherein the seal strip is a rubber seal strip.