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Thermal management device for battery pack

A technology for thermal management and battery packs, applied to battery pack components, secondary batteries, circuits, etc., can solve problems such as difficult design of battery boxes and battery systems

Inactive Publication Date: 2017-08-29
SHENZHEN PUYI BATTERY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, on the one hand, the battery box is required to have a good heat dissipation structure, and on the other hand, the battery box is required to have a good heating and heat preservation structure. This pair of contradictory requirements makes it difficult to design a battery box that meets the requirements in the existing technology body and battery system

Method used

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  • Thermal management device for battery pack
  • Thermal management device for battery pack
  • Thermal management device for battery pack

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Embodiment Construction

[0029] The present application will be described in further detail below through specific embodiments in conjunction with the accompanying drawings.

[0030] The existing technology cannot well solve the contradictory requirements for heat dissipation and heating and heat preservation of the battery system and battery box. The film has a fixed structure with adhesive on one side for heating. First of all, the heat dissipation structure of the external air conditioner is difficult to ensure the waterproof level of the battery system, and the power consumption is relatively large during operation; the heat dissipation structure of the liquid cooling requires the battery system to design a separate liquid injection radiator to complete the heat dissipation, the structure is complicated, and the process is complicated. The cost is high and it is difficult to modularize the assembly, and there are risks such as cooling liquid leakage; secondly, each row of battery packs is inserted...

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Abstract

Disclosed in the present application is a thermal management device for a battery pack. The thermal management device comprises: a battery box, the circumference of the inner wall of which outwards protrudes; two first heat-dissipation plates, provided with bidirectional fans; a second heat-dissipation plate, provided with a plurality of heat-dissipation fans; two heating and heat-dissipation plates, provided with a plurality of ventilation holes; and a heater; and a battery management circuit. The thermal management device for a battery pack in the present application creatively resolves the contradictive demands of a battery box body between the demand for a good heat-dissipation structure and the demand for a good heating and heat preservation structure in the prior art, thereby ensuring that a batty packet in a battery system carries out charging and discharging work in a proper environment, controlling the temperature increase and the temperature difference in the battery box, improving the cycle life of the battery pack, and reducing a variety of safety risks caused by a high temperature and a low temperature.

Description

technical field [0001] The present application relates to the technical field of thermal management of battery packs, in particular to a thermal management device of a battery pack. Background technique [0002] Many battery systems, such as power lithium-ion battery systems, have a large number of cells, which will generate a lot of heat during work (especially during high-rate charging and discharging). In the battery system box module, the internal cells It is very difficult to dissipate the heat of the battery cell. The accumulation of heat will cause a high temperature rise inside the battery box, and the temperature difference inside the battery box is also large, which not only reduces the cycle life of the battery pack, but also causes serious damage. safe question. Therefore, this requires the battery case to have a good heat dissipation structure. [0003] On the other hand, when the battery pack is charged and discharged at low temperature, especially below zero...

Claims

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Application Information

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IPC IPC(8): H01M10/613H01M10/615H01M10/6555H01M10/6563H01M50/213
CPCH01M10/613H01M10/615H01M10/6555H01M10/6563H01M50/213Y02E60/10
Inventor 康小斌潘险峰
Owner SHENZHEN PUYI BATTERY TECH
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