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Lead-out terminal, battery cover assembly having same, battery and battery pack

A technology for lead-out terminals and battery cover plates, which is applied to small-sized batteries/battery packs, battery pack components, battery covers/end caps, etc. Large buffering effect, improving connection stability and reliability, and mitigating effects

Active Publication Date: 2019-06-04
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of unreliable welding caused by the poor cushioning effect of the lead-out terminals when the lead-out terminals are welded to the battery cover and when the lead-out terminals are welded to the power connection piece in the prior art, the present application proposes a connection that is firm and stable. High, buffer performance and good safety performance lead-out terminal

Method used

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  • Lead-out terminal, battery cover assembly having same, battery and battery pack
  • Lead-out terminal, battery cover assembly having same, battery and battery pack
  • Lead-out terminal, battery cover assembly having same, battery and battery pack

Examples

Experimental program
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Effect test

Embodiment 1

[0100] Such as Figure 5 As shown, in the embodiment of the present invention, the battery cover plate assembly 200 includes: a main body cover plate 80 , an insulating seal 60 and the electrode terminal 100 according to the above-mentioned embodiments of the present invention.

[0101] Specifically, the main body cover 80 is provided with a lead-out hole 81 , the insulating seal 60 has a through hole 61 , and the electrode terminal 100 is installed on the main body cover 80 through the through hole 61 and the lead-out hole 81 .

[0102] The battery cover assembly 200 according to the embodiment of the present invention can be applied to a battery in which the positive electrode and the negative electrode are respectively arranged at both ends, and the battery cover assembly 200 is respectively arranged at both ends of the battery and seals the battery. The electrode terminal 100 may be a positive terminal and / or a negative terminal of the battery, and the electrode terminals ...

Embodiment 2

[0105] Such as Figure 6 , Figure 7 As shown, in the specific embodiment of the present invention, the battery cover assembly 200a includes: a main body cover 80a, a first insulating seal 60a and a second insulating seal 60b, a positive terminal and a negative terminal.

[0106] Specifically, the main body cover plate 80a is provided with a first lead-out hole 81a and a second lead-out hole 81b, the first insulating sealing member 60a has a first through hole 61a, the second insulating sealing member 60b has a second through hole 61b, and the positive terminal Through the first through hole 61a and the first lead-out hole 81a, the negative terminal passes through the second through hole 61b and the second lead-out hole 81b, wherein the negative terminal is the electrode terminal 100 according to some of the above-mentioned embodiments, and the negative terminal The connecting ring 20 and the positive terminal are made of the same metal material, that is, the negative termina...

Embodiment 3

[0112] Such as Figure 8 , Figure 9 As shown, in the specific embodiment of the present invention, the battery cover plate assembly 200a' includes: a main body cover plate 80a', a first insulating seal 60a' and a second insulating seal 60b', a positive terminal and a negative terminal.

[0113] Specifically, the main body cover plate 80a' is provided with a first lead-out hole 81a' and a second lead-out hole 81b' (such as Figure 6 and Figure 7 shown), the first insulating seal 60a' has a first through hole 61a', the second insulating seal 60b' has a second through hole 61b', and the positive terminal passes through the first through hole 61a' and the first lead-out hole 81a ', the negative terminal passes through the second through hole 61b' and the second lead-out hole 81b', wherein the positive terminal is the electrode terminal 100 according to some of the above-mentioned embodiments, and the connecting ring 20 of the positive terminal and the negative terminal are mad...

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PUM

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Abstract

The invention discloses a lead-out terminal, a battery cover assembly with the same, a battery and a battery pack, wherein the lead-out terminal is provided with a flange on the outer peripheral surface of the lead-out terminal, and the flange includes a first ring-shaped straight ring connected to the lead-out terminal. part, an annular inclined portion extending obliquely downward and outward from the outer edge of the first annular straight portion, and a second annular straight portion horizontally extending outward from the outer edge of the annular inclined portion. According to the lead-out terminal of the present invention, by providing a flange on the outer peripheral surface of the lead-out terminal, the buffer can be increased, the influence of welding stress when the electrode terminal and the battery cover are welded can be slowed down, and the connection between the lead-out terminal and the battery cover can be improved. stability and reliability.

Description

[0001] This application is a division of the application date is December 31, 2013, the application number is 201310753850.4, the application name is electrode terminal, the battery cover assembly with it, the battery and the battery pack technical field [0002] The present invention relates to the technical field of batteries, in particular, to a lead-out terminal, a battery cover assembly having the same, a battery and a battery pack. Background technique [0003] The power battery electric vehicle is an important part of the electric vehicle, which has an important impact on the performance of the electric vehicle. A battery pack is composed of multiple single cells connected in series or in parallel, and the quality of the connection between the single cells has a great influence on the performance of the battery pack. Contents of the invention [0004] In order to solve the problem of unreliable welding caused by the poor cushioning effect of the lead-out terminals w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/30H01M2/04H01M2/20H01M50/147H01M50/509H01M50/552H01M50/566
CPCH01M50/147H01M50/50H01M50/543Y02E60/10
Inventor 何昱臣李银玲吴强汪鲁建刘斯源
Owner BYD CO LTD