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Heat radiation management method of battery pack

A management method and technology of battery packs, applied to secondary batteries, circuits, electrical components, etc., can solve problems such as excessive temperature difference of battery packs

Active Publication Date: 2015-01-21
HUIZHOU EPOWER ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is to provide a simple and easy-to-implement battery pack thermal management method that can effectively solve the problem of excessive temperature difference of the battery pack

Method used

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  • Heat radiation management method of battery pack
  • Heat radiation management method of battery pack

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Embodiment

[0027] Such as figure 1 , 2 As shown, a battery pack heat dissipation management method, the device is a battery pack connected to the battery management system, and a battery box for placing the battery pack. The battery pack heat dissipation management method of this embodiment is to set two controllable The turning fan is located at both ends of the battery pack in the battery box and is distributed equidistantly in the battery box according to the length of the battery pack. In this embodiment, temperature sensors are respectively installed at both ends of the battery pack and in the middle of the battery box. The temperature data sampled is temperature A, the temperature data sampled at the middle position is temperature B, and the temperature data sampled at the other end is temperature C. The battery management system controls the start timing and direction of the fan according to the temperature values ​​A, B, and C sampled by the temperature sensor.

[0028] The tem...

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Abstract

The invention provides a heat radiation management method of a battery pack. According to the heat radiation management method, the battery pack and a battery box for holding the battery pack are included; a fan for controlling a rotating direction is mounted in the battery box; a plurality of temperature sensors are distributed in the battery box; an opening moment and the rotating direction of the fan can be controlled according to temperature distribution information sampled by the temperature sensors; and the method adopts a bidirectional serial ventilation method to carry out heat radiation management on the battery pack so that the problems that the temperature of the battery is abnormally raised in a heat radiation process, the temperature difference of the battery is enlarged and the like are effectively avoided. According to the method, the device is simple and a realization method is easy to realize; and the heat radiation management effect is good and the commonality is strong.

Description

technical field [0001] The invention relates to a method for managing heat dissipation of a battery pack, in particular to a method for managing heat dissipation of a battery pack of an electric vehicle. Background technique [0002] During the use of electric vehicles, the battery pack is prone to overheating and large temperature differences. However, the performance and life of electric vehicle battery packs are greatly affected by temperature and temperature differences. The battery pack needs to be kept under a certain ambient temperature. Only when it is working can it exert good performance and have a long service life, so it is very important to control the temperature and temperature difference of the battery pack in an appropriate range. [0003] The current heat dissipation method for electric vehicle battery packs is generally realized by fans, and is carried out by means of serial ventilation. When the battery management system detects that the battery temperat...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/625H01M10/6563
CPCY02E60/10
Inventor 刘飞文锋阮旭松张维戈张金灵
Owner HUIZHOU EPOWER ELECTRONICS
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