CN210200853U

CN210200853U - Take shockproof busbar of fuse

Info

Publication number: CN210200853U
Application number: CN201921221501.7U
Authority: CN
Inventors: Zehai Dong; 董泽海; Fengmin Zhang; 张凤敏
Original assignee: Fujian Scud Power Technology Co Ltd
Current assignee: Fujian Scud Power Technology Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-03-27
Anticipated expiration: 2029-07-30

Abstract

The utility model discloses a take shockproof busbar of fuse, including busbar and electric core connecting portion, be provided with a plurality of electric core connecting portions on the busbar, its characterized in that: the battery cell connecting part comprises a shockproof buffer body, a fuse body and a spot welding body; one end of the shockproof buffer body is connected with the busbar, the other end of the shockproof buffer body is connected with the fuse body, and the spot welding body is connected with the shockproof buffer body through the fuse body. The utility model discloses simple structure, when not only can preventing that certain or a plurality of electric core from taking place inside short circuit, the fuse body can fuse, makes inside short circuit electric core and group battery form and opens circuit to prevent that adjacent electric core from taking place outside short circuit, protect the safety of adjacent electric core, strengthen the security of group battery, prevent effectively moreover that the group battery is when vibrations or falling, the busbar is because stress production rupture, or the solder joint is pulled off, thereby arouses the group battery to damage.

Description

Take shockproof busbar of fuse

Technical Field

The utility model relates to a group battery busbar technical field especially relates to a take shockproof busbar of fuse.

Background

Batteries are one of the indispensable things in our daily lives, and as such, the safety and quality of batteries are a great concern. However, the internal short circuit of one or more cells occurs in the existing battery pack, and the short-circuited cells become conductors, so that the external short circuit of adjacent cells is caused, the short circuit phenomenon of the parallel battery pack is caused, and the battery can emit large current instantly due to the short circuit, so that high temperature, combustion, explosion and other dangers are caused; or after the temperature of one or more battery cells rises, high temperature is transmitted to the battery cells connected in parallel through the bus bar, so that the damage of the diaphragm of the battery cells is caused, and dangers such as combustion, explosion and the like caused by short circuit are induced.

The vibration or the falling of group battery in the transportation leads to the solder joint of busbar to drop easily, and the busbar is because stress production rupture phenomenon causes the group battery to damage and influences the group battery quality.

Therefore, a bus bar with a simple structure is particularly needed, which can prevent one or more cells from short-circuiting and affecting the external short-circuiting of adjacent cells, so that the electric product cannot be used, and can effectively prevent the bus bar from breaking due to stress or pulling off a welding spot when the battery pack shakes or falls off in the transportation process, thereby causing the damage of the battery pack.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the weak point among the above-mentioned prior art and provide a simple structure, not only can prevent that one or several electric cores from taking place the short circuit and influencing adjacent electric core and take place outside short circuit, lead to the unable use of power consumption product, can prevent effectively moreover that the group battery is when the vibrations in the transportation or fall, the busbar is because stress production rupture phenomenon, or the solder joint is pulled off to arouse the busbar that the group battery damaged.

The utility model discloses a realize through following mode:

including busbar and electric core connecting portion, be provided with a plurality of electric core connecting portions on the busbar, its characterized in that: the battery cell connecting part comprises a shockproof buffer body, a fuse body and a spot welding body; one end of the shockproof buffer body is connected with the busbar, the other end of the shockproof buffer body is connected with the fuse body, and the spot welding body is connected with the shockproof buffer body through the fuse body.

Furthermore, the shockproof buffer body is of a U-shaped elastic sheet structure.

Further, the spot welding body is divided into a fuse connecting plate, a supporting plate and a suspension plate from bottom to top; fuse connecting plate one end and fuse body coupling, the bending upward of fuse connecting plate other end forms the backup pad, the backup pad is crooked right and is formed the suspension board.

Furthermore, a shunting groove is formed in the middle of the suspended plate, and the shunting groove divides the suspended plate into two parts.

The beneficial effects of the utility model reside in that:

firstly, through utilizing the fuse body, when the internal short circuit of one or several electric cores produces high temperature and can fuse the fuse body, cut off dangerous electric core and other electric cores and contact, avoid the group battery to take place dangerous accident.

Secondly, through utilizing the fuse body, can fuse the fuse body after one or several electric core temperature rises, cut off dangerous electric core and other electric cores and contact, avoid causing the diaphragm damage of electric core, take place the short circuit, take place dangers such as burning, explosion.

And thirdly, the vibration-proof buffer body and the spot welding suspension plate can be used for effectively preventing the bus bar from generating a fracture phenomenon or a welding point from being pulled off due to stress when the battery pack vibrates or falls in the transportation process.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of the top view structure of the present invention.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

the utility model provides a take shockproof busbar of fuse, as shown in fig. 1-2, includes busbar 1 and electric core connecting portion 2, be provided with a plurality of electric core connecting portion 2 on the busbar 1, its characterized in that: the battery core connecting part 2 comprises a shockproof buffer body 21, a fuse body 22 and a spot welding body 23; one end of the shockproof buffer body 21 is connected with the bus bar 1, the other end of the shockproof buffer body 21 is connected with the fuse body 22, and the spot welding body 23 is connected with the shockproof buffer body 21 through the fuse body 22.

Further, the shockproof buffer body 21 is of a U-shaped elastic sheet structure.

Further, the spot welding body 23 is divided into a fuse connecting plate 231, a supporting plate 232 and a hanging plate 233 from bottom to top; one end of the fuse connecting plate 231 is connected with the fuse body 22, the other end of the fuse connecting plate 231 is bent upwards to form a supporting plate 232, and the supporting plate 232 is bent rightwards to form a suspended plate 233.

Furthermore, a diversion trench 3 is formed in the middle of the suspended plate 233, and the diversion trench 3 divides the suspended plate 233 into two halves.

In this embodiment, when one or several electric cores in the battery pack are short-circuited, the short-circuited electric core becomes a conductor, thereby causing the short circuit of the adjacent electric core, and causing the short circuit of the parallel battery pack, the battery can emit a large current instantly due to the short circuit, causing high temperature, and causing risks of combustion, explosion, etc., therefore, the spot welding body 23 is connected with the shockproof buffer body 21 through the fuse body 22, and since one end of the shockproof buffer body 21 is connected with the busbar 1, the corresponding fuse body 22 is fused when the electric core is short-circuited, so that the internal short-circuited electric core and the battery pack form an open circuit.

When the temperature of one or more battery cells in the battery pack rises, high temperature can be transmitted to the battery cells connected in parallel through the bus bar, the diaphragm of the battery cells is damaged, short circuit occurs, and dangers such as combustion and explosion occur, so the spot welding body 23 is connected with the shockproof buffer body 21 through the fuse body 22, and one end of the shockproof buffer body 21 is connected with the bus bar 1, so that when the temperature of the battery cells rises to a certain temperature, the corresponding fuse body 22 is fused, the dangerous battery cells are isolated from other battery cells, the damage of the diaphragm of the battery cells is avoided, short circuit occurs, and dangers such as combustion and explosion occur.

In order to improve the stability of spot welding and make the solder joint difficult to be pulled off, the spot welding body 23 is designed into a suspended structure, the spot welding body 23 is divided into a fuse connecting plate 231, a supporting plate 232 and a suspended plate 233 from bottom to top, the other end of the fuse connecting plate 231 is bent upwards to form the supporting plate 232, the supporting plate 232 is bent rightwards to form the suspended plate 233, meanwhile, in order to facilitate the spot welding process, a flow distribution groove 3 is specially formed in the middle of the suspended plate 233, and the suspended plate 233 is divided into two halves by the flow distribution groove 3. As shown in fig. 1 and 2, the shockproof buffer body 21 is designed into a U-shaped elastic sheet, so that internal stress can be eliminated when the shockproof buffer body encounters shock or falls off during transportation, and the bus bar 1 cannot be broken due to stress.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a take shockproof busbar of fuse, includes busbar (1) and electric core connecting portion (2), be provided with a plurality of electric core connecting portion (2) on busbar (1), its characterized in that: the battery cell connecting part (2) comprises a shockproof buffer body (21), a fuse body (22) and a spot welding body (23); one end of the shockproof buffer body (21) is connected with the bus bar (1), the other end of the shockproof buffer body (21) is connected with the fuse body (22), and the spot welding body (23) is connected with the shockproof buffer body (21) through the fuse body (22).

2. The fused vibration damping busbar according to claim 1, wherein: the shockproof buffer body (21) is of a U-shaped elastic sheet structure.

3. The fused vibration damping busbar according to claim 1, wherein: the spot welding body (23) is divided into a fuse connecting plate (231), a supporting plate (232) and a suspension plate (233) from bottom to top; fuse connecting plate (231) one end is connected with fuse body (22), fuse connecting plate (231) other end bending upward forms backup pad (232), backup pad (232) bend right forms hanging plate (233).

4. The fused vibration damping busbar according to claim 3, wherein: the middle of the suspended plate (233) is provided with a splitter box (3), and the splitter box (3) divides the suspended plate (233) into two halves.