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Air extruder, traction battery, manufacturing method and motor vehicle

A technology for traction batteries and extruders, applied in battery pack parts, secondary battery gas removal, secondary battery repair/maintenance, etc., can solve problems such as high structural space requirements, and achieve the effect of simple operation

Pending Publication Date: 2022-07-08
BAYERISCHE MOTOREN WERKE AG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a device has a high installation space requirement in the motor vehicle

Method used

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  • Air extruder, traction battery, manufacturing method and motor vehicle
  • Air extruder, traction battery, manufacturing method and motor vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In the figures, identical and functionally identical elements are provided with the same reference numerals.

[0023] figure 1 A traction battery 1 for an electrically drivable motor vehicle is shown. The traction battery 1 has a battery housing 2 in which a plurality of components 3 , such as battery modules, are arranged. In order to fill the free volume 4 (which is defined by the free spaces between the parts 3 and between the parts 3 and the battery housing 2 ) and thus to be able to squeeze out the air located in this volume 4 , the traction battery 1 has also figure 2 Air extruder 5 shown in . The air extruder 5 has a vacuum bag 6 and a foam 7 arranged in the vacuum bag 6 . exist figure 2 The air extruder 5 is shown in the final state, in which the inner space of the vacuum bag 6 is filled with air and thus the foam expands. Furthermore, the air extruder 5 can have an initial state in which the inner space of the vacuum bag 6 is at least partially evacuate...

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PUM

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Abstract

The invention relates to an air extruder (5) for a traction battery (1) of a motor vehicle, which is designed, in the installed state in a battery housing (2) of the traction battery (1), to at least partially fill a free volume (4) in the battery housing (2) and thus to at least partially extrude air in the battery housing (2) in the event of heat generation inside the housing, comprising: a vacuum bag (6); a foam (7) which is arranged in the vacuum bag (6) and which can be expanded by air, and an air inlet point (8) which can be manually opened, the air extruder (5) being transitionable from an initial state to a final state which is set for a charged state, in an initial state, the vacuum bag (6) is evacuated in the closed state of the air inlet point (8) and the foam (7) located in the vacuum bag (6) is compressed, and in a final state, the vacuum bag (6) is filled with air by manually opening the air inlet point (8) and thus the foam (7) expands.

Description

technical field [0001] The present invention relates to an air extruder for a traction battery of a motor vehicle. The invention also relates to a traction battery, a method for producing a traction battery and a motor vehicle. Background technique [0002] Attention is currently focused on traction batteries for electrically drivable motor vehicles. Such traction batteries usually have a battery housing in which a plurality of interconnected battery modules, battery cells or electrically or geometrically connected battery packs are arranged. In this case, a predetermined distance is usually maintained between the battery module and the housing wall of the battery housing when the battery module is arranged in the battery housing, which distance, for example, in the event of an accident-induced force acting on the battery housing used as a buffer. The spacing can also be derived from structural requirements, assembly technical requirements, electrical requirements, electr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M50/383
CPCH01M50/383H01M10/52Y02E60/10H01M50/249H01M50/204H01M2200/00H01M2220/20
Inventor F·兰德雷尔
Owner BAYERISCHE MOTOREN WERKE AG
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