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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 cover/end cover, etc., can solve the problems of insufficient protection of battery poles, achieve the goals of improving assembly process, simplifying structure, and saving space Effect

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 solve the problem of insufficient battery pole protection in the prior art, and to propose a new battery pack for electric vehicles

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] Such as figure 1 As shown, the entire structure consists of a set of batteries 101, a set of battery connecting sheets 102, a frame 106, a sealing strip 105, a top cover 104, two pole protection sleeves 103, two battery pack management boxes 107 and 18 M5 fixing screw 108, voltage sampling wiring harness, temperature sensor and its wiring harness composition.

[0026] The structure of the frame is like figure 2 As shown, the frame is composed of two broken panels 201, four L-shaped edge frame strips 202, and four fixing seats 204 for fixing connecting pieces. The four edge frame strips 202 and the two broken panels 201 form a box for accommodating the battery. A gap (203) is opened at one end of the frame for inserting the battery during assembly. Nuts for fixing the connecting parts are pre-embedded in the fixing seat, so that it is more convenient and quick to assemble. Except for the embedded fixing nut, the whole structure is all FRP material.

[0027] The structure o...

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PUM

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Abstract

The invention relates to a battery pack of electric vehicle, which comprises a group of batteries and a box for containing said batteries, wherein said box has two pole protective sleeves made from insulated material at the positive and negative poles of battery. The invention uses pole protective sleeve to protect the poles of battery, to avoid short circuit of poles in accidence; in addition, the invention also comprises a connecting plate protective chamber, a voltage sampling wire channel, a temperature sensor compression block, a wire protective channel, and a seal compression bar, to improve efficiency and save cost in batch production. The invention can protect pole effectively, fix and protect the voltage sampling and temperature sampling wire, to simplify and structure and save cost.

Description

【Technical Field】 [0001] The invention relates to an electric vehicle battery pack, in particular to the improvement of the battery pack box body of the electric vehicle. 【Background technique】 [0002] An electric vehicle battery pack generally includes a battery pack and a box containing the battery pack. In the early 1990s, the boxes of battery packs were just simple boxes. Since 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 strong and easy to manufacture, and are widely used. [0003] However, the safety of such a structure is poor, the structure itself cannot be insulated, and there is no proper protection for the poles of the battery, the high-voltage conductive device and various detection and sampling devices. In the event of an accident, the damage can not be reduced and the damage will be increased. [0004] In addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M2/02H01M2/30H01M2/20H01M2/34H01M10/42B60L11/18H01M50/209H01M50/244H01M50/249H01M50/298H01M50/509H01M50/514H01M50/547H01M50/569H01M50/591
CPCY02E60/12B60L2240/545B60L11/1879Y02T10/705Y02T10/7005B60L50/64Y02T10/70
Inventor 乐文锦
Owner BYD CO LTD
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