CN215527868U

CN215527868U - Battery box

Info

Publication number: CN215527868U
Application number: CN202122269240.XU
Authority: CN
Inventors: 向晓龙; 韩晓明; 杨绪龙; 金朝阳
Original assignee: CALB Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-01-14
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a battery box, which comprises an edge beam, a liquid cooling plate, a bottom protection plate and a sealing gasket, wherein the bottom surface of the edge beam comprises a first connecting surface, a second connecting surface and a transition connecting surface connected between the first connecting surface and the second connecting surface; the liquid cooling plate is arranged below the edge beam and connected with the first connecting surface, and an accommodating groove with a downward notch is formed among the liquid cooling plate, the first connecting surface and the transition connecting surface; the bottom guard plate is arranged below the liquid cooling plate and is connected with the second connecting surface; the sealing gasket comprises a sealing body and a convex edge which is convexly arranged on the upper surface of the sealing body, the first end of the sealing body is clamped between the bottom protective plate and the second connecting surface, the second end of the sealing body is clamped between the liquid cooling plate and the bottom protective plate, and the convex edge is embedded in the accommodating groove. According to the battery box, the sealing can be completed by arranging the sealing gasket, so that the sealing effect is ensured, the sealing structure is simplified, the use of sealing materials is saved, and the cost is reduced.

Description

Battery box

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery box.

Background

In the battery field, in order to ensure the air tightness of the box body, the adopted sealing form is too complex, and a plurality of materials are required to be input, so that the process flow is increased, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a battery box which is simple in structure, low in cost and good in sealing effect.

To achieve the above object, the present invention provides a battery box, comprising:

the bottom surface of the edge beam comprises a first connecting surface, a second connecting surface and a transition connecting surface connected between the first connecting surface and the second connecting surface, the first connecting surface and the second connecting surface are arranged in a staggered mode, and the first connecting surface is located above the second connecting surface;

the liquid cooling plate is arranged below the edge beam and connected with the first connecting surface, and a containing groove with a downward notch is formed among the liquid cooling plate, the first connecting surface and the transition connecting surface;

the bottom protective plate is arranged below the liquid cooling plate and is connected with the second connecting surface;

the sealing gasket comprises a sealing body and a convex edge which is convexly arranged on the upper surface of the sealing body, the first end of the sealing body is clamped between the bottom protective plate and the second connecting surface, the second end of the sealing body is clamped between the liquid cooling plate and the bottom protective plate, and the convex edge is embedded in the accommodating groove.

Compared with the prior art, the technical scheme has the following advantages:

according to the battery box, the liquid cooling plate and the bottom protection plate are respectively connected with the edge beam, and the bottom protection plate covers the connection part of the liquid cooling plate and the edge beam, so that the bottom protection plate can play a role in primary sealing and protection on the connection part between the liquid cooling plate and the edge beam;

according to the battery box, the sealing gasket is arranged, so that the gap between the bottom protective plate and the edge beam, the gap between the liquid cooling plate and the bottom protective plate and the gap between the liquid cooling plate and the edge beam can be sealed simultaneously, the sealing effect is guaranteed, the sealing structure is simplified, the use of sealing materials is saved, and the cost is reduced.

Drawings

The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein:

FIG. 1 is a schematic view of the structure of a battery case of the present invention;

fig. 2 is an enlarged schematic view of a portion a of fig. 1.

The reference numbers illustrate:

10. a boundary beam; 11. a first connection face; 12. a second connection face; 13. a transitional connecting surface;

20. a liquid-cooled plate;

30. a bottom guard plate;

40. a gasket; 41. a seal body; 42. a rib;

50. a containing groove;

60. a flow drill screw;

71. pulling and riveting the nut; 72. and (6) riveting a bolt.

Detailed Description

The present application is described in further detail below with reference to the figures and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the present invention provides a battery box, which includes an edge beam 10, a liquid cooling plate 20, a bottom guard plate 30, and a gasket 40, wherein:

the bottom surface of the edge beam 10 comprises a first connection face 11, a second connection face 12 and a transition connection face 13 connected between the first connection face 11 and the second connection face 12, namely, the first connecting surface 11, the transitional connecting surface 13 and the second connecting surface 12 are connected in sequence, the first connecting surface 11 and the second connecting surface 12 are disposed in a staggered manner, and the first connecting surface 11 is located above the second connecting surface 12, that is, the first connecting surface 11 and the second connecting surface 12 are disposed in a vertically staggered manner, so that the bottom surface of the edge beam 10 is in a step-like structure, preferably, in this embodiment, the first connecting surface 11 and the second connecting surface 12 are horizontal surfaces for connecting with the liquid cooling plate 20 and the bottom protective plate 30, the transitional connecting surface 13 is a vertical surface, the transitional connecting surface 13 may also be an inclined surface, an arc surface, or a curved surface, as long as the first connecting surface 11 and the second connecting surface 12 which are arranged in a vertically staggered manner are connected;

the liquid cooling plate 20 is arranged below the edge beam 10, the liquid cooling plate 20 is connected with the first connecting surface 11, and a containing groove 50 with a downward notch is formed among the liquid cooling plate 20, the first connecting surface 11 and the transitional connecting surface 13, that is, the liquid cooling plate 20 does not completely cover the first connecting surface 11, that is, a gap is formed between the side surface of the liquid cooling plate 20 facing the transitional connecting surface 13 and the transitional connecting surface 13, so that the side surface of the liquid cooling plate 20 and the transitional connecting surface 13 form two side surfaces of the containing groove 50, and the first connecting surface 11 forms a groove bottom surface of the containing groove 50, preferably, the height of the transitional connecting surface 13 in the vertical direction is substantially the same as the thickness of the liquid cooling plate 20, so that the two side surfaces of the containing groove 50 are substantially equal in height;

the bottom guard plate 30 is arranged below the liquid cooling plate 20, that is, the boundary beam 10, the liquid cooling plate 20 and the bottom guard plate 30 are sequentially arranged from top to bottom, and the bottom guard plate 30 is connected with the second connecting surface 12, that is, the bottom guard plate 30 covers the connecting part of the liquid cooling plate 20 and the boundary beam 10, so that the bottom guard plate 30 can play a primary sealing and protecting role in the connecting part of the liquid cooling plate 20 and the boundary beam 10, wherein the specific structures of the bottom guard plate 30 and the liquid cooling plate 20 are the prior art, and are not described herein again;

the sealing gasket 40 includes a sealing body 41 and a rib 42 protruding from the upper surface of the sealing body 41, in this embodiment, the sealing body 41 is in a flat shape, and the sealing body 41 and the rib 42 are in an integral structure, a first end of the sealing body 41 is clamped between the bottom protection plate 30 and the second connection surface 12 to seal a gap between the bottom protection plate 30 and the edge beam 10, a second end of the sealing body 41 is clamped between the liquid cooling plate 20 and the bottom protection plate 30 to seal a gap between the liquid cooling plate 20 and the bottom protection plate 30, the rib 42 is embedded in the accommodating groove 50, and an outer surface of the rib 42 is tightly attached to an inner surface of the accommodating groove 50 to seal a gap between the liquid cooling plate 20 and the edge beam 10.

It should be noted that the number and the specific arrangement of the edge beams 10 may be set according to actual use requirements, and are not described herein again.

According to the battery box, the liquid cooling plate 20 and the bottom protection plate 30 are respectively connected with the boundary beam 10, and the bottom protection plate 30 covers the connection part of the liquid cooling plate 20 and the boundary beam 10, so that the bottom protection plate 30 can play a role in primary sealing and protection on the connection part between the liquid cooling plate 20 and the boundary beam 10; the gap between the bottom protection plate 30 and the boundary beam 10, the gap between the liquid cooling plate 20 and the bottom protection plate 30 and the gap between the liquid cooling plate 20 and the boundary beam 10 can be simultaneously sealed by arranging the sealing gasket 40, so that the sealing effect is ensured, the sealing structure is simplified, the use of sealing materials is saved, and the cost is reduced.

Further, as shown in fig. 2, the cross-sectional shape of the rib 42 is adapted to the cross-sectional shape of the receiving groove 50, so that the rib 42 is inserted into the receiving groove 50, and the outer surface of the rib 42 is closely attached to the inner surface of the receiving groove 50, thereby ensuring the reliability of the rib 42 in sealing the gap between the liquid-cooled plate 20 and the boundary beam 10.

Further, the liquid cooling plate 20 is detachably connected to the first connecting surface 11 by a first fastening member, so as to facilitate the assembling and disassembling operation of the liquid cooling plate 20.

In a specific example of the embodiment, as shown in fig. 1 and fig. 2, the first fastening member includes a plurality of flow drill screws 60, the plurality of flow drill screws 60 may be disposed at equal intervals or at unequal intervals, the connection strength of the flow drill screws 60 is high, and a single-side connection can be achieved under a condition of small deformation, so that the reliability of the connection between the liquid cooling plate 20 and the edge beam 10 is effectively ensured.

Of course, the first fastening member may also include a plurality of bolts or a plurality of rivets, so long as the liquid cooling plate 20 can be detachably connected to the first connecting surface 11, and will not be described in detail herein.

Further, the bottom guard plate 30 is detachably connected to the second connecting surface 12 by a second fastening member, so that the bottom guard plate 30 can be easily disassembled and assembled.

In a specific example of the embodiment, as shown in fig. 2, the second fastening member includes a rivet nut 71 and a rivet bolt 72, the rivet nut 71 is suitable for various thicknesses of plates, and is convenient to install, the rivet nut 71 is connected to the second connection surface 12, the rivet bolt 72 penetrates through the bottom protection plate 30 and is in threaded connection with the rivet nut 71, and the threaded fit between the rivet bolt 72 and the rivet nut 71 is simple and convenient, so that the dismounting operation of the bottom protection plate 30 becomes simple and convenient.

Still further, as shown in fig. 2, the first end of the sealing body 41 extends toward the edge of the second connection surface 12, which is far from the transitional connection surface 13, that is, the first end of the extended sealing body 41 can cover the blind rivet nut 71, the blind rivet bolt 72 penetrates through the bottom protection plate 30 and the sealing body 41 and is in threaded connection with the blind rivet nut 71, that is, the sealing body 41 is positioned through the cooperation of the blind rivet bolt 72 and the blind rivet nut 71, so that the sealing body 41 cannot deviate in the use process, and the sealing body 41 can seal the matching position of the blind rivet bolt 72 and the blind rivet nut 71, thereby further ensuring the sealing performance of the battery box.

Of course, the second fastening member may also be a plurality of drilling screws or a plurality of bolts, as long as the requirement for detachably connecting the bottom protection plate 30 to the second connecting surface 12 is met, and the description thereof is omitted here.

In summary, in the battery box of the utility model, the liquid cooling plate and the bottom guard plate are respectively connected with the edge beam, and the bottom guard plate covers the joint of the liquid cooling plate and the edge beam, so that the bottom guard plate can play a role in primary sealing and protection on the joint between the liquid cooling plate and the edge beam;

In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate orientations or positional relationships based on operational states of the present application, and are only used for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly stated or limited. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The present application has been described above with reference to preferred embodiments, but these embodiments are merely exemplary and merely illustrative. On the basis of the above, the present application can be subjected to various substitutions and improvements, and the substitutions and the improvements are all within the protection scope of the present application.

Claims

1. A battery box, characterized in that the battery box comprises:

2. The battery box according to claim 1,

the cross section of the convex edge is matched with that of the containing groove.

3. The battery box according to claim 1,

the liquid cooling plate is detachably connected with the first connecting surface through a first fastener.

4. The battery box according to claim 3,

the first fastener includes at least two flow drill screws.

5. The battery box according to claim 1,

the bottom guard plate is detachably connected with the second connecting surface through a second fastener.

6. The battery box according to claim 5,

the second fastener comprises a rivet nut and a rivet bolt, the rivet nut is connected to the second connecting surface, and the rivet bolt penetrates through the bottom protection plate and is in threaded connection with the rivet nut.

7. The battery box according to claim 6,

the first end of the sealing body faces the second connecting surface and is far away from the edge of the transitional connecting surface, the rivet bolt penetrates through the bottom protection plate and the sealing body and is in threaded connection with the rivet nut.