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Battery

A technology for battery packs and batteries, which is applied to batteries, battery pack parts, battery covers/end covers, etc., which can solve the problems of difficult airtight treatment and achieve the effect of easy airtight treatment and assembly process

Active Publication Date: 2022-02-18
YAZAKI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, there is a problem that the airtight treatment between the external terminal and the cover becomes difficult.

Method used

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Examples

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no. 1 example

[0051] In the following, reference will be made to figure 1 and 2 A first embodiment of the present disclosure is described. As shown in these figures, the battery pack 1 includes a lower block 2 , an upper block 3 , bolts 4 , O-rings 5 ​​and an insulating cover 6 . First, module 2 will be described. The lower module 2 has a battery 21 as a battery, a lower cover 22 as an accommodation portion, a circuit breaker 23 as an electrical component, first to third lower module bus bars 24 to 26 , and bolts 27 , 28 .

[0052] The battery 21 is formed in a box shape. A plurality of batteries 21 are arranged in the horizontal direction in the drawing, and housed in a lower cover 22 described later. A pair of electrodes (anode, cathode) is provided on the respective upper surfaces of these batteries 21 . When mutually adjacent batteries 21 are connected together using the first lower module bus bar 24 , a plurality of batteries 21 are connected in series.

[0053] The lower cover 2...

no. 2 example

[0078] Next, refer to image 3 and 4 A second embodiment is described. By the way, in image 3 and 4 , use the same reference numerals to denote the above-referenced figure 1 and 2 The components in the described first embodiment are similar components, and a detailed description thereof will be omitted. In the first embodiment, the arrangement direction of the batteries 21 is figure 1 and 2 shown in the horizontal direction. In the second embodiment, the direction orthogonal to the arrangement direction of the batteries 21 and the vertical direction is the horizontal direction.

[0079] The big difference between the first and second embodiments is the connection of the terminal bus bar 33 . In the first embodiment, the third lower module bus bar 26 is the first conductive member, and the third lower module bus bar 26 and the terminal bus bar 33 are connected to each other by the bolt 4 . In contrast, in the second embodiment, the circuit breaker 23 is the first con...

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Abstract

There is provided a battery pack capable of connecting first and second conductive members after attaching an outer cover to an accommodating portion, thereby facilitating airtight handling and assembly processes. The third lower module bus bar (26) is attached to the lower module (2) and electrically connected to the battery (21). The terminal bus bar (33) is mounted on the upper cover (31) and electrically connected to the terminal (32). In addition, the upper cover (31) is provided with a through hole (312A), and the third lower module bus bar (26) and the terminal bus bar (33) are electrically connected to each other through the bolt (4) passing through the through hole (312A).

Description

technical field [0001] The present invention relates to a battery pack. Background technique [0002] As one example of the above-mentioned battery pack, for example, batteries described in Patent Documents 1 and 2 have been proposed. In the batteries described in Patent Documents 1 and 2, in order to achieve airtightness, bolts (external terminals) for connecting to the outside and bus bars for connecting to electrodes of the battery body are integrally formed on the cover. For this reason, before the case body accommodates the battery body, the electrodes of the battery body are connected to the bus bars, and then, while the cover is attached to the battery body, the case body houses the battery body. Therefore, there is a problem that assembly is not easy. [0003] Alternatively, it is conceivable to attach the external terminal after attaching the cover to the housing body. However, in this case, there is a problem that the airtight process between the external termin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M50/204H01M50/517H01M50/271H01M50/278H01M50/293H01M50/50H01M50/583
CPCH01M50/50H01M50/583H01M50/278H01M50/293H01M50/204H01M2200/103Y02E60/10
Inventor 庄田隆博
Owner YAZAKI CORP