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Battery pack of electric vehicle

An electric vehicle battery and battery technology, which is applied in the direction of electric vehicles, battery pack parts, battery/battery traction, etc., can solve the problems of improving safety, saving cost and making convenience at the same time, so as to improve the assembly process, The effect of saving space and simplifying the structure

Active Publication Date: 2008-10-29
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to propose a new battery pack for electric vehicles in order to solve the problems in the prior art that cannot satisfy the problems of improving safety, saving cost and making convenience at the same time.

Method used

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  • Battery pack of electric vehicle
  • Battery pack of electric vehicle
  • Battery pack of electric vehicle

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Embodiment Construction

[0025] The present invention is characterized in that the box body is made of FRP material. Since this kind of material cannot adopt welding and other processes like metal materials, if the structural design is unreasonable, it will bring inconvenience in production. The present invention adopts the following structure, so that the present invention has both structural advantages and material advantages.

[0026] like figure 1 As shown, the whole structure consists of a set of batteries 101, a set of battery connecting pieces 102, a frame 106, a sealing strip 105, a top cover 104, two pole protection covers 103, two battery pack management boxes 107 and 18 M5 fixing screw 108, voltage sampling wiring harness, temperature sensor and wiring harness thereof.

[0027] The structure of the framework is as figure 2 As shown, the frame is composed of two section panels 201, four L-shaped edge frame strips 202, and four fixing seats 204 for fixing the connectors. The four edge fr...

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Abstract

The battery package for electric vehicle comprises a group of batteries and a box made of FRP (Fiber Reinforced Plastics) material to protect pole column and prevent short circuit or more damage. This invention has well physical and chemical features, and reduces mass and production cost.

Description

【Technical field】 [0001] The invention relates to an electric vehicle battery pack, in particular to the improvement of the box body of the electric vehicle battery pack. 【Background technique】 [0002] An electric vehicle battery pack generally includes a battery pack and a box for accommodating the battery pack. In the early 1990s, battery pack boxes were just simple boxes. Because the battery pack box body needs sufficient strength to protect the driver during use and accidents, the box body is generally made of metal materials such as stainless steel. The materials are often high in strength and easy to manufacture, and are widely used. [0003] However, such a structure is less safe, the structure itself cannot be insulated, and there is no proper protection for the poles of the battery, high-voltage conductive devices and various testing and sampling devices. In the event of an accident, the damage cannot be reduced but will be aggravated. In actual use, there will b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10B60L11/18H01M50/227H01M50/249H01M50/258H01M50/296
CPCY02E60/12B60L2240/545B60L11/1879Y02T10/705Y02T10/7005B60L50/64Y02T10/70
Inventor 乐文锦
Owner BYD CO LTD
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