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Enclosed battery box for active heat management of electric vehicle

An electric vehicle and thermal management technology, applied in secondary batteries, vehicle components, electric power devices, etc., can solve the problems of high-level protection requirements, cooling water leakage, and complex structure that cannot meet the dust-proof and waterproof requirements of battery boxes. , to achieve the effect of simple components, high dust resistance and low price

Inactive Publication Date: 2015-04-08
CHINA NORTH VEHICLE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this air-cooling method, there is material exchange between the inside of the box and the surrounding environment, which cannot meet the high-level protection requirements of the battery box against dust and water.
Water cooling method, complex structure, high cost, and the risk of cooling water leakage

Method used

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  • Enclosed battery box for active heat management of electric vehicle

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Embodiment Construction

[0018] In order to make the purpose, content and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] In the description of the present invention, it should be noted that the orientation or position indicated by the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer" etc. The relationship 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 that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore It should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only,...

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Abstract

The invention belongs to the field of electric vehicles, and discloses an enclosed battery box for active heat management of an electric vehicle. The enclosed battery box comprises a battery box body, and a semiconductor chilling plate, an internal fin, a fan, a battery management system and a battery pack which are arranged in the battery box body, wherein the battery box body is an enclosed box body, the fan is arranged at one side of the internal fin; the semiconductor chilling fin is fixed on the inner side wall of the battery box body and connected with the internal fin; the battery management system is used for controlling working states of the fan and the semiconductor chilling plate in real time according to a temperature, which is monitored by the battery management system, in the battery pack, so as to realize active heat management. According to the enclosed battery box, the structure of an existing battery system is not changed, simple switching of a heating manner and a refrigerating manner of the battery pack inside the battery box of the electric vehicle can be realized, relatively high dustproof and waterproof grades can be realized; the battery box has an active heat management control strategy; a heating component and a refrigerating component for a power battery pack are simple and convenient to mount, and the price is low.

Description

technical field [0001] The invention belongs to the technical field of power battery packs for electric vehicles, and relates to a closed battery box for active heat management of electric vehicles. Background technique [0002] Lithium-ion power battery pack is one of the core components of electric vehicles, and its performance directly affects the performance of the vehicle. Lithium-ion power battery packs can only perform well when working in a suitable temperature range (generally 20-40°C), but in severe winter conditions, the power battery system needs to work in a lower temperature environment , when the battery pack is working below zero, its performance will be greatly reduced, and measures need to be taken to heat the power battery pack; in hot summer conditions, the lithium-ion power battery pack will generate heat during work, which is affected by the inside of the battery box. Due to the limitation of space, the heat cannot be dissipated in time, which can easi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10B60K1/04H01M50/204H01M50/24H01M50/249H01M50/264
CPCH01M10/486B60K1/04H01M50/20Y02E60/10
Inventor 王发成高申张京伟徐春常王子冬胡道中佟玉琦张跃强高洪波徐少禹田崔钧陈芬佟蕾房宝元陈潇宗陆宇
Owner CHINA NORTH VEHICLE RES INST
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