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Short-circuit protection for an electric vehicle battery

A technology for electric vehicles and automobile batteries, which is applied in the direction of automatic disconnection of emergency protection devices, electric vehicles, electric devices, etc., and can solve problems such as fire, personal injury, short circuit in electrodes or batteries, etc.

Inactive Publication Date: 2012-04-25
AUTO KABEL MANAGEMENTGMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such water can cause a short circuit between the electrodes or inside the battery
Because batteries store a lot of power for electric vehicles, a short circuit can often cause injury or cause a fire

Method used

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  • Short-circuit protection for an electric vehicle battery
  • Short-circuit protection for an electric vehicle battery
  • Short-circuit protection for an electric vehicle battery

Examples

Experimental program
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Effect test

Embodiment Construction

[0031] figure 1 A high-voltage battery 2 is shown with battery terminals 3a, 3b. The terminals 3a and 3b have different polarities. The terminals 3 are electrically connected to a distribution box 8, which consists of at least two electrical lines, and which connects the battery 2 to the electric motor of the motor vehicle (not shown). Between the electric motor and the battery terminal 3 there is a separating element 6 which consists of two separating elements 6a, 6b. The disconnecting element 6 a is a mechanical disconnecting element which enables the battery terminal 3 to be disconnected from the distributor 8 in a non-destructive manner. The disconnecting element 6b is a pyrotechnic disconnecting element which is able to disconnect the battery terminal 3 from the power distribution unit 8 by breaking the current path. In addition, in figure 1 Also shown in is the detection element 4, which consists of a rain sensor 4a and a water sensor 4b.

[0032] The isolating elem...

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PUM

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Abstract

The invention relates to a device for electrically protecting an electric vehicle. In order to protect high voltage batteries of electric vehicles in the event of floods, a disconnecting device (6) for electrically disconnecting a vehicle battery (2) from an electric distribution system (8) within the vehicle and a detection device (4) for determining moisture are provided such that the detection device (4) activates the disconnecting device (6) if moisture (12) is detected so that the vehicle battery (2) is electrically disconnected from the electrical distribution system (8).

Description

technical field [0001] The invention relates to a device for electric vehicle circuit protection, an electric vehicle with the device, and a method for electric vehicle circuit protection. Background technique [0002] In the future, the application of electric motors in the automotive industry will become more and more important. Currently there are many different proposals for hybrid electric vehicles and pure electric vehicles. Especially in purely electric vehicles, the total energy required for driving must be stored in the battery. Such batteries are usually high voltage batteries with a voltage above 100V. The maximum current achieved in such batteries exceeds 100A. [0003] As electric motors and associated high-voltage batteries become more widespread, safety is gaining more and more attention. In batteries for electric vehicles, the terminal voltage is often so high that the electrical insulation between the battery terminals must have a high breakdown strength...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H5/08B60L3/04H01M50/574
CPCY02E60/12H02H5/083H02H7/18B60L3/04H01M2/34H01M10/48Y02E60/10H01M50/574
Inventor 延斯·舒马赫弗朗茨-约瑟夫·利茨
Owner AUTO KABEL MANAGEMENTGMBH
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