CN214153098U

CN214153098U - Automobile power battery pole group with direct-connected bus bar

Info

Publication number: CN214153098U
Application number: CN202022522530.6U
Authority: CN
Inventors: 杨滔; 熊正林
Original assignee: Hubei Nandu New Energy Research Co Ltd; Wuhan Nandu New Energy Technology Co ltd; Zhejiang Narada Power Source Co Ltd
Current assignee: Hubei Nandu New Energy Research Co Ltd; Wuhan Nandu New Energy Technology Co ltd; Zhejiang Narada Power Source Co Ltd
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-09-07
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses an automobile power battery pole group with a direct-connected bus bar, which comprises a bus bar, a plurality of groups of battery pole plate groups and pole columns, wherein the bus bar cancels a bridge-crossing design and helps to reduce the voltage of the battery, so that the performance of the battery is improved when the battery passes through a large current; during assembly, the bus bar is inserted into a groove cover of the battery shell, the bus bar and the groove cover are sealed by glue, the insertion becomes extremely shallow due to the change of the shape, the glue consumption is reduced, and the cost is greatly reduced; the flat strip-shaped bus bar is easy to demould, the cast-weld cost is lower, and the production efficiency is improved; meanwhile, the elimination of the bridging hole also reduces the sealing times and the manufacturing cost. The automobile power battery pole group with the direct-connected bus bar provided by the embodiment of the application reduces the using amount of the sealing glue, saves the raw material cost and improves the product competitiveness. (2) The casting and demoulding are easy, and the integral production and manufacturing efficiency is improved. (3) The performance of the battery under the condition of large current is improved.

Description

Automobile power battery pole group with direct-connected bus bar

Technical Field

The utility model relates to the technical field of batteries, concretely relates to car power battery utmost point crowd with direct-connected type busbar.

Background

The plates are connected in parallel in a certain number, and then the bus bars and the polar columns are arranged on the top of the battery plate group, so that a polar group is formed. The existing battery cover and battery jar are mostly sealed by epoxy resin, a bridge-spanning sealing hole is arranged on the reverse side of the battery cover, a certain amount of epoxy resin glue is poured into the bridge-spanning sealing hole and a sealing groove on the reverse side of the battery cover, when the battery cover is sealed, the bridge-spanning part of a busbar is inserted into the bridge-spanning sealing hole of the battery cover, the whole bridge-spanning part is completely immersed into the glue for sealing, and then the battery cover and the battery jar are sealed. The bridge-crossing sealing hole is generally large in caliber, and the sealing groove beside the bridge-crossing sealing hole is thin, so that the using amount of glue is large, the large-current performance of the battery is low, and the cost of the battery shell is too high. The cross-bridge sealing hole is generally circular, the sealing groove is in a slender shape, the corner of the connecting position is small, and demolding is difficult; this also results in inefficient overall production of the battery case.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The glue amount for sealing the bridge-spanning structure is large; the cost of the battery is high; the mold is difficult to demold; the technical problem of the inefficiency is made to the battery, the utility model provides an automobile power battery utmost point crowd with direct-connected type busbar, it has cancelled the bridge structure of striding, changes into flat banding busbar directly to link battery polar plate group, has promoted the performance of battery when through the heavy current, has reduced the sealing glue quantity, makes the busbar demolding more simple and easy, has improved whole production manufacturing efficiency.

2. Technical scheme

In order to solve the above problem, the utility model provides a technical scheme does:

the utility model provides an automobile power battery utmost point crowd with direct-connected busbar, includes busbar, a plurality of group battery polar plate group and utmost point post, and the busbar is located battery polar plate group top, and utmost point post is located the battery polar plate group top at both ends, the shape of busbar is flat strip, and two battery polar plate groups of adjacent volume are connected at the both ends of busbar. The original bridge is higher, and needs to be inserted into the bridge-spanning hole of the groove cover of the battery shell, and the part needs to be completely filled with glue, so that the original structure can use a large amount of glue. The shape of the existing busbar is changed into a flat strip shape, a bridge-crossing structure at the top is cancelled, the busbar is directly immersed in glue, a structure which directly connects the battery plate group and impregnates the busbar is formed, the flat busbar is matched with the groove cover in shape, the sealed space is greatly reduced, and the glue amount is saved. The battery plate groups are connected through the bus bars to form a battery plate group. The busbar is provided with two staggered rows which are in a bow shape and connect each battery plate group. The bow-shaped bus bar can ensure that the battery liquid can fully flow through the battery polar plate, and the efficiency and the performance of the battery are improved.

Preferably, the battery plate groups are uniformly and parallelly arranged. The battery plate groups which are uniformly distributed can ensure that the battery liquid flows uniformly and the heat dissipation is uniform.

Preferably, the battery plate group comprises battery plates, and the battery plates internally contain a conductive substrate.

Preferably, the battery plates and the bus bar are welded. The welded connection mode enables the bus bar and the battery plate group to be firmly connected.

Preferably, the top edge of the bus bar is provided with a round corner structure. During casting, the round corner structure enables the bus bar to be in a shape with a large top and a small bottom, and the shape is convenient for demolding. And can protect workers or users from being scratched by the edge when installed or used.

Preferably, the bus bar covers two adjacent battery plate groups. The long bus bar can cover all battery plates, so that the battery liquid can flow through the battery plates fully, and the efficiency and performance of the battery are improved.

Preferably, the distance between two adjacent groups of battery plate groups is 3-7 cm. The space between the battery plate groups of 3-7 cm can ensure the full utilization of the space of the battery and the full heat dissipation of the battery plate groups.

Preferably, the distance between the two rows of busbars is 60-70 cm. The distance between the bus bars is 60-70 cm, so that battery liquid can sufficiently flow through a battery polar plate, and the efficiency and the performance of the battery are improved; but also can give consideration to the structural strength of the battery pole group, so that the battery pole group is not easy to lose position during assembly.

Preferably, the bus bar is of an integrally molded structure. The bus bar of the integrated structure has better structural strength, and can ensure accurate position of the battery pole plate when being assembled with the groove cover of the battery shell, and the assembly is easy.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the automobile power battery pole group with the direct-connected bus bar provided by the embodiment of the application reduces the using amount of the sealing glue, cancels the bridge-crossing design, saves the raw material cost and improves the product competitiveness.

(2) The automobile power battery pole group with the direct-connected bus bar provided by the embodiment of the application has the advantages that the bus bar is easier to cast and demould, and the overall production and manufacturing efficiency is improved.

(3) The automobile power battery pole group with the direct-connected bus bar provided by the embodiment of the application promotes the performance of the battery under the condition of large current.

Drawings

Fig. 1 is a top view of an automobile power battery pole group with a direct-connected bus bar provided by an embodiment of the present invention.

Fig. 2 is a front view of an automobile power battery pole group with a direct-connected bus bar provided by an embodiment of the present invention.

1. A battery pole group; 2. a bus bar; 3. a battery plate group; 4. and (4) a pole.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings. The utility model discloses in words such as first, second, be for the description the utility model discloses a technical scheme is convenient and set up, and does not have specific limiting action, is general finger, right the technical scheme of the utility model does not constitute limiting action. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, 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. The technical solutions in the same embodiment and between the technical solutions in different embodiments can be arranged and combined to form a new technical solution without contradiction or conflict, which is all within the scope of the present invention.

Example (b):

with reference to fig. 1-2, the bus bar 2 eliminates a bridge-crossing design, and thus eliminates a bridge-crossing hole on a slot cover of a battery shell, which helps to reduce the battery voltage, so that the performance of the battery is improved when a large current passes through the battery, and the competitiveness of the product is improved; the bus bar 2 is inserted into the groove cover of the battery shell and sealed by glue, the insertion becomes shallower due to the change of the shape, the glue consumption is reduced to a certain extent, and the cost is greatly reduced; the cast-weld cost of the flat strip-shaped bus bar 2 is lower, the bus bar 2 is easier to demould, and the production efficiency is improved; meanwhile, the elimination of the bridging hole also reduces the sealing times and the manufacturing cost.

The battery plate group 3 with uniform distribution can make the battery liquid flow uniformly and is beneficial to uniform heat dissipation. The battery plate group 3 comprises battery plates, and conductive substrates are contained in the battery plates. The bus bar 2 is provided with two staggered rows which are in a bow shape and connect each battery plate group 3. The bow-shaped bus bar 2 can ensure that the battery liquid can fully flow through the battery polar plate, and the efficiency and the performance of the battery are improved. The welding connection mode enables the bus bar 2 and the battery plate group 3 to be firmly connected. The rounded corner structure allows the bus bar 2 to be formed into a shape with a large top and a small bottom during casting, which facilitates demolding. And can protect workers or users from being scratched by the edge when installed or used. The bus bar 2 with enough length can ensure to cover all battery plates, so that the battery liquid can fully flow through the battery plates, and the efficiency and the performance of the battery are improved. The space between the 3 battery plate groups of 3-7 cm can ensure the full utilization of the space of the battery and the full heat dissipation of the 3 battery plate groups. The distance between the two rows of busbars 2 is 60-70 cm. The distance between the bus bars 2 of 60-70 cm can enable battery liquid to fully flow through the battery polar plate, and the efficiency and the performance of the battery are improved; but also can give consideration to the structural strength of the battery pole group 1, so that the battery pole group is not easy to lose position during assembly. The bus bar 2 with the integrated structure has better structural strength, can ensure the accurate position of the battery pole plate when being assembled with the groove cover of the battery shell, and is easy to assemble.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. The utility model provides an automobile power battery utmost point crowd with direct-connected busbar, includes busbar, a plurality of group battery polar plate group and utmost point post, and the busbar is located battery polar plate group top, and utmost point post is located the battery polar plate group top at both ends, its characterized in that, the shape of busbar is flat strip, and two adjacent battery polar plate groups are connected at the both ends of busbar, the busbar is equipped with two rows of dislocation, is "bow" word form and connects each battery polar plate group.

2. The automobile power battery pole group with the direct-connected bus bars as claimed in claim 1, wherein the battery pole plate groups are uniformly arranged in parallel.

3. The automobile power battery pole group with the direct-connected bus bars as claimed in claim 1, wherein the battery pole plate group comprises battery pole plates, and conductive substrates are contained in the battery pole plates.

4. The automotive power battery pole group with the direct-connected bus bars as claimed in claim 1, wherein the battery pole plates and the bus bars are welded.

5. The pole group of a direct-connected bus bar of a power battery of an automobile as claimed in claim 1, wherein the top edge of the bus bar is provided with a round corner structure.

6. The automotive power battery pole group with the direct-connected bus bars as claimed in claim 1, wherein the bus bars cover two adjacent battery pole plate groups.

7. The automobile power battery pole group with the direct-connected bus bars as claimed in claim 1, wherein the distance between two adjacent groups of battery pole plates is 3-7 cm.

8. The pole group of the power battery of the automobile with the direct-connected bus bars as claimed in claim 1, wherein the distance between the bus bars is 60-70 cm.

9. The pole group of a power battery for an automobile with a direct-connected bus bar of claim 1, wherein the bus bar is an integrally formed structure.