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Battery pack and detection method for battery pack

A detection method and battery pack technology, applied in battery circuit devices, arrangement of multiple synchronous batteries, charge equalization circuit, etc., can solve problems such as easy reverse charging of batteries, poor battery life, insufficient power, etc., to improve safety Sex, the effect of reducing the risk of reverse charge

Active Publication Date: 2021-11-19
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As the power source of wireless power tools, battery packs have always been the main link restricting the development of wireless power tools. In the past, battery packs often only had an output voltage below 30V. When they were driving high-power power tools, they often caused insufficient power and battery life. bad question
[0003] When the battery pack is adapted to power tools for heavy-duty work, when the cells in the battery pack are unbalanced, the weak cells in the battery pack are prone to reverse charging, causing potential safety hazards

Method used

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  • Battery pack and detection method for battery pack
  • Battery pack and detection method for battery pack
  • Battery pack and detection method for battery pack

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Embodiment Construction

[0023] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to Figure 1 to Figure 3 As shown, the battery pack 100 mainly includes: a battery pack 11 , a terminal module 12 , a temperature module 13 , a voltage detection module 14 , a communication module 15 and a controller 16 for controlling them.

[0025] The battery pack 11 includes: more than one series unit 111 . When the number of series units 111 is greater than or equal to 2, different series units 111 are connected in series, and the whole formed by them is the battery pack 11 .

[0026] A series unit 111 includes: more than one battery cell. When the number of battery cells in the same series unit 111 is greater than or equal to 2, different battery cells are connected in parallel to form a series unit 111 . As an implementation, such as figure 2 As shown, a series unit 111 includes two battery cells connected in para...

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Abstract

The invention discloses a battery pack and a detection method used for the battery pack. The battery pack includes: more than one series unit connected in series with each other; a voltage detection module for respectively detecting the voltage of a plurality of series units; a controller , for receiving the voltage detected by the voltage detection module and calculating the voltage difference between the series units within a preset time, and increasing the undervoltage threshold of the battery pack when the voltage difference exceeds the preset difference. The invention is beneficial in that the risk of reverse charging of the battery pack when powering the electric tool is reduced, and the safety of the battery pack is improved.

Description

technical field [0001] The invention relates to a battery pack and a detection method for the battery pack. Background technique [0002] As the power source of wireless power tools, battery packs have always been the main link restricting the development of wireless power tools. In the past, battery packs often only had an output voltage below 30V. When they were driving high-power power tools, they often caused insufficient power and battery life. bad question. [0003] When the battery pack is adapted to power tools to work under heavy load conditions, when the cells in the battery pack are unbalanced, the weak cells in the battery pack are prone to reverse charging, causing potential safety hazards. Contents of the invention [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [0005] A battery pack, comprising: more than one series unit connected in series with each other; a voltage detection module, used to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00G01R31/385
CPCH02J7/0016
Inventor 耿正王磊孟影
Owner NANJING CHERVON IND
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