CN212257542U

CN212257542U - Bus bar structure of lead-acid storage battery

Info

Publication number: CN212257542U
Application number: CN202020686606.6U
Authority: CN
Inventors: 董书岭; 张梦颖; 吴涛; 臧效男; 赵玉阳; 赵妮; 于杰; 司晗
Original assignee: Zibo Torch Energy Co ltd
Current assignee: Zibo Torch Energy Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2020-12-29
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a lead acid battery technical field, concretely relates to lead acid battery's busbar structure, including busbar and the fixed utmost point post that sets up on the busbar way, the thickness of busbar is steadilyd decrease gradually from utmost point post department to the direction of keeping away from utmost point post. Provided is a bus bar structure of a lead-acid battery, which shortens a current passing path and improves the performance of the battery.

Description

Bus bar structure of lead-acid storage battery

Technical Field

The utility model relates to a lead acid battery technical field, concretely relates to lead acid battery's busbar structure.

Background

Lead-acid batteries generally comprise a battery case, a pole, a busbar, a positive plate, a negative plate, a separator and an electrolyte. The bus bar is divided into a positive bus bar and a negative bus bar, and plays the roles of conducting current and connecting polar plates in parallel.

The energy provided by the storage battery is determined by the voltage and the current of the battery, the voltage of the battery is gradually reduced in the discharging process, and when the ending voltage is reached, the discharging of the battery is ended. Therefore, it is necessary to reduce the voltage drop of the battery and shorten the current passing path. The bus bars in the batteries play a role in conducting current, and if the design is not reasonable, the current path is longer, the voltage drop of the batteries is increased, and the discharge performance of the batteries is influenced.

At present, two manufacturing modes of a lead-acid storage battery bus bar are generally available, one mode is that a plate lug and an electrode post of a polar plate are fixed in a mold cavity, then gas welding is adopted in the cavity of the bus bar to melt lead alloy, the bus bar is formed by cooling, the bus bar is called as welding, the bus bar is rectangular, the electrode post needs to be positioned on one side of the bus bar, the welding position of an operator is reserved, the electrode post and the polar plate cannot interfere with each other, the structure causes the current path to be lengthened, the voltage drop of a battery is enlarged, and the discharge performance of the storage battery is influenced; and the other method is to fix the polar plate, insert the plate lug of the polar plate into a cavity filled with lead alloy solution, and then cool the polar plate to form a bus bar and a polar column, which is called cast welding. Both of these approaches are normally applied in the manufacturing process of rechargeable batteries.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the bus bar structure of the lead-acid storage battery, which shortens the passing path of current and improves the performance of the storage battery, is provided.

The utility model discloses a solve the technical scheme that its technical problem adopted and do: the busbar structure of the single-grid lead-acid storage battery comprises a busbar and a pole fixedly arranged on the busbar, wherein the thickness of the busbar gradually decreases from the pole to the direction away from the pole.

The utility model discloses with utmost point post setting on the row way of busbar, rather than putting in one side of busbar, shorten the route that passes through of electric current, improve the performance of battery.

The pole is an end pole.

The utility model provides a many check lead acid battery's busbar structure, includes end utmost point post busbar and is used for the connection busbar that current battery and next check battery are connected, the fixed end utmost point post that is provided with on the route of end utmost point post busbar, the fixed connection utmost point post that sets up on the route of connecting the busbar, the thickness of end utmost point post busbar is steadilyd decrease gradually from end utmost point post department to the direction of keeping away from end utmost point post, the thickness of connecting the busbar is steadilyd decrease gradually from the direction of connecting utmost point post department to keeping away from connecting utmost point post.

Still include the busbar connection group, the busbar connection group includes two busbars through connecting the utmost point post and connecting. The pole and the bus bar are partially overlapped through the bus bar connecting set, so that the current passing path is shortened, and the performance of the storage battery is improved.

Because the polar plates in the battery polar group are in a parallel connection structure, when current flows from the polar columns to the polar plates of the polar group, the current is gradually reduced from the direction close to the polar columns to the direction far away from the polar columns. Therefore, the thickness of the bus bar is gradually reduced from the middle part to the two ends, the voltage drop of the bus bar is smaller than that of the existing rectangular bus bar, the discharge performance of the battery is improved, and the lead consumption of the bus bar can be reduced.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model provides a lead acid battery's busbar structure, the utility model discloses a utmost point post and busbar adopt cast joint's mode to make, put utmost point post on the route of busbar or realize the part of utmost point post and busbar overlapping through connecting two busbars of utmost point post connection, reach the route of passing through that shortens the electric current, and the inside pressure drop of battery reduces, improves the performance of battery. The bus bar has reasonable structural design, and reduces the lead consumption and the production cost of the battery.

Drawings

Fig. 1 is a schematic diagram of a bus bar structure of a 2V storage battery of the present invention.

Fig. 2 is a schematic diagram of the bus bar structure of the 12V battery of the present invention.

Fig. 3 is a schematic structural diagram of the bus bar connection set of the present invention.

In the figure: 1. a bus bar; 101. an end pole busbar; 102. connecting a bus bar; 2. a pole column; 201. an end pole column; 202. connecting the pole; 3. and a bus bar connection group.

Detailed Description

The embodiments of the present invention will be further described with reference to the accompanying drawings:

example 1

As shown in fig. 1, the bus bar structure of a 2V single-grid lead-acid battery comprises a bus bar 1 and a pole 2 fixedly arranged on a bus line of the bus bar 1, wherein the thickness of the bus bar 1 gradually decreases from the pole 2 to a direction away from the pole 2.

The present embodiment sets the terminal post 2 as the terminal post 201. As shown in fig. 1, two bus bars 1 are provided as a positive electrode bus bar and a negative electrode bus bar, respectively.

Example 2

As shown in fig. 2 to fig. 3, the busbar structure of the multi-grid 12V lead-acid storage battery includes an end pole busbar 101 and a connecting busbar 102 for connecting the current battery with the next battery, an end pole 201 is fixedly disposed on the busbar of the end pole busbar 101, a connecting pole 202 is fixedly disposed on the busbar of the connecting busbar 102, the thickness of the end pole busbar 101 gradually decreases from the end pole 201 to the direction far away from the end pole 201, and the thickness of the connecting busbar 102 gradually decreases from the connecting pole 202 to the direction far away from the connecting pole 202.

Example 3

As shown in fig. 3, in addition to embodiment 2, the present invention further includes a busbar connection group 3, and the busbar connection group 3 includes two busbars 1 connected by a connection pole 202. The setting of busbar connection group 3 is connected two busbar 1 through a connection utmost point post 202, realizes the part of utmost point post and busbar and overlaps, reaches the purpose that shortens the electric current and passes through the route, reduces the inside step-down of battery, improves the performance of battery.

Claims

1. The utility model provides a busbar structure of single lattice lead acid battery, its characterized in that, includes fixed utmost point post (2) that set up on busbar (1) and busbar (1) row way, the thickness of busbar (1) is from utmost point post (2) department to the direction of keeping away from utmost point post (2) degressive gradually.

2. Busbar arrangement according to claim 1, characterized in that the pole (2) is an end pole (201).

3. The utility model provides a many check lead acid battery's busbar structure, its characterized in that, including end utmost point post busbar (101) and be used for being connected busbar (102) of being connected current battery and next check battery, fixed end utmost point post (201) of being provided with on the row of end utmost point post busbar (101), fixed connection utmost point post (202) of being provided with on the row of connecting busbar (102), the thickness of end utmost point post busbar (101) is located to the direction of keeping away from end utmost point post (201) and is steadilyd decrease gradually from end utmost point post (201), the thickness of connecting busbar (102) is located to the direction of keeping away from connection utmost point post (202) and is steadilyd decrease gradually from connecting utmost point post (202).

4. The busbar structure of a multi-grid lead-acid battery according to claim 3, further comprising a busbar connection group (3), said busbar connection group (3) comprising two busbars (1) connected by a connection post (202).