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self-activating drainage system

A self-activating, battery system technology, used in batteries, secondary battery repair/maintenance, structural parts, etc.

Active Publication Date: 2018-11-02
TESLA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this requires expert knowledge and some external indication of the leak

Method used

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Examples

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Embodiment Construction

[0029] This document describes systems and techniques for managing the undesired presence of liquid in battery systems. Generally, a system is provided that is configured to contain leaking liquid in a non-liquid sensitive area of ​​a battery system so as to protect internal electrical components of the battery system from contact with the leaking liquid. The system also removes leaking fluid from the battery system in direct response to the leak.

[0030] Passive drainage includes a self-activating valve with a dissolvable element that reacts to the liquid and causes the valve to be opened. Before activation (opening), the valve is closed and prevents the passage of any material into or out of the battery system. When activated, the valve allows leakage fluid to drain from the housing. Some embodiments are configured to incorporate an internal coolant leak into the battery system, remove at least some of the coolant via passive draining, and detect and report to the battery...

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Abstract

A method of managing leakage of fluid within a battery system, comprising: containing the leaked fluid in a non-fluid-sensitive area of ​​the battery system so as to protect internal electrical components of the battery system from contact with the leaked fluid; and responding directly to the leaked fluid. Leak, remove the leaking fluid from the battery system. A drainage device comprising: a body having a port therethrough, the body configured to be positioned in a wall of a container; means for opening the port in response to a first liquid contacting the drainage device on an inside of the container; and Means for resisting intrusion into the container by a second liquid contacting the drainage device on the outside of the container.

Description

technical field [0001] The present disclosure relates generally to the field of battery cooling, and more particularly to self-activating draining systems. Background technique [0002] Active battery cooling can be used to reduce the risk of thermal runaway and optimize battery performance and life. Some active battery cooling systems blow air across the battery, or across a heat sink that is thermally coupled to the battery. As another example, a battery cooling system may use cooling tubes and liquid coolant to move heat away from the battery. Care must be taken to ensure that the liquid coolant does not short circuit or otherwise electrically interfere with the battery. [0003] Loss of containment of the coolant within the high voltage battery (caused by system failure or by abuse) may result in an unsafe condition. When the battery is installed in an electric or hybrid vehicle, the inherent risk of mechanical damage to the battery (eg, in a vehicle crash) may create...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/60H01M10/65H01M10/42H01M2/10H01M50/60
CPCH01M10/6567H01M10/613H01M10/4228H01M2220/20Y10T137/0324Y10T137/5762Y02E60/10H01M50/60H01M50/3425H01M10/625H01M10/0525
Inventor D·格雷斯M·戈德曼W·菲利普斯D·W·韦斯特P·格拉A·W·里滕伯格G·辛格K·安德森A·霍顿P·豪C·J·斯托费尔
Owner TESLA INC