Battery heating device and heating method

A battery heating and heating method technology, applied in battery circuit devices, circuit devices, batteries, etc., can solve the problem of repeated heating of the heating device, and achieve the effect of solving repeated heating and shortening the charging time

Active Publication Date: 2021-08-24
XIAMEN GOLDEN DRAGON BUS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The invention provides a battery heating device and a heating method, aiming to solve the problem of repeated heating of the battery heating device under low temperature conditions

Method used

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  • Battery heating device and heating method
  • Battery heating device and heating method
  • Battery heating device and heating method

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Embodiment Construction

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is some embodiments of the present invention, but not all of them. Based on the implementation manners in the present invention, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present invention, all other implement...

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Abstract

The invention provides a battery heating device and a heating method, comprising: a battery box, a sensor module arranged on the box, a high-voltage heating sheet and a low-voltage heating sheet arranged in the battery box, and the high-voltage A high-voltage heating circuit electrically connected to the heating sheet, a low-voltage heating circuit electrically connected to the low-voltage heating sheet, a BMS integrated controller electrically connected to the control end of the low-voltage heating circuit and the high-voltage heating circuit, and the BMS integrated control The input end of the sensor is electrically connected to the sensor module; the BMS integrated controller is used to control the high-voltage heating circuit to directly heat the battery cells in the battery box according to the temperature value collected by the sensor module, and to control the The low-voltage heating circuit provides a thermal protection barrier for the battery case; the problem of repeated heating of the battery heating device under low temperature conditions is solved.

Description

technical field [0001] The invention relates to the field of vehicle-mounted power battery heating, in particular to a battery heating device and a heating method. Background technique [0002] Lithium-ion power battery is one of the key components of electric vehicles, and temperature has a great impact on its performance and life. When lithium-ion batteries are charged at low temperatures, there will be a problem of lithium deposition at the negative electrode of the battery, and high-temperature discharges will intensify the side reactions of the batteries, and continuous high-temperature high-rate discharges may cause thermal runaway. [0003] The idea of ​​low-temperature battery heating is basically to arrange the heating device directly on the side, top or bottom of the battery, or to conduct liquid / solid / gas heat transfer through the heating device to indirectly heat the battery. Patent CN110635183A proposes a method of calculating the equilibrium temperature point ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/44H01M10/48H01M10/42H01M10/615H01M10/625H01M10/633H01M10/635H01M10/657
CPCH01M10/4257H01M10/443H01M10/446H01M10/486H01M2010/4271H01M2220/20H01M10/615H01M10/625H01M10/633H01M10/635H01M10/657Y02E60/10
Inventor 张凤麒邵国兴王烈任宽黄水渠
Owner XIAMEN GOLDEN DRAGON BUS
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