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Battery pack and electric tool

A technology for battery packs and battery cells, which is applied to secondary batteries, battery pack components, circuits, etc. It can solve problems such as voltage lines being easily crimped, voltage detection lines being easily broken, and wiring difficulties, achieving simplified wiring design, Avoid the problem of easy disconnection and reduce the difficulty of wiring

Pending Publication Date: 2020-11-24
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the number of cells and the number of voltage detection lines are large, there will be a problem of difficult wiring
Moreover, there are problems such as the voltage line is easy to be crushed, and the welding part of the voltage detection line is easy to break.

Method used

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  • Battery pack and electric tool
  • Battery pack and electric tool
  • Battery pack and electric tool

Examples

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Embodiment Construction

[0045] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0046] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention. The terms "first", "second", "third" and the like are only used for distinguishing descriptions, and should not be construed as indicating or implying relative im...

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Abstract

The invention discloses a battery pack and an electric tool, the battery pack comprises a circuit board, a plurality of battery cell units, a plurality of voltage detection lines, a first wiring terminal and a control board, each battery cell unit comprises one or more electrically connected battery cells, and the positive electrode end and / or the negative electrode end of each battery cell unit are / is electrically connected with a conductive path on the circuit board; the voltage detection line is used for detecting the voltage of the battery cell unit or the battery cell; the control panel is connected with each voltage detection line to acquire the voltage of the battery cell unit or the battery cell, and the first wiring terminal is arranged on the circuit board and is configured to electrically connect at least part of the voltage detection lines with the positive electrode end and / or the negative electrode end of the battery cell unit through a conductive path on the circuit board. At least part of the voltage detection line is connected with the positive electrode end and / or the negative electrode end of the battery cell unit through the circuit board and the first connecting terminal, so that the wiring design is simplified, the wiring difficulty is reduced, the problems of easy line breaking and possible short circuit caused by complete welding of the voltage detectionline are also avoided, and the reliability is high.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a battery pack and an electric tool. Background technique [0002] A battery pack usually includes multiple battery packs, and the battery pack usually includes multiple battery cells connected in series and / or in parallel. Usually, it is necessary to detect the voltage of at least some of the cells to determine whether the cells are working normally. [0003] However, the current voltage detection lines are usually all directly welded to the positive and negative terminals of the battery cell. When the number of battery cells and the number of voltage detection lines are large, there will be a problem of difficult wiring. Moreover, there are problems such as that the voltage line is easy to be crushed, and the welded part of the voltage detection line is easy to break. Contents of the invention [0004] The object of the present invention is to provide a battery pack and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/48H01M2/20
CPCH01M10/482Y02E60/10
Inventor 吴小力陆伟
Owner NANJING CHERVON IND
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