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battery unit

A technology of battery cells and battery modules, applied in the direction of electrical components, secondary batteries, circuits, etc., can solve problems that have not been proved to be satisfactory

Active Publication Date: 2022-01-11
VOLKSWAGEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Ultrasonic sensors are theoretically conceivable as liquid detectors, but tests of this so far have not proven satisfactory

Method used

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Examples

Experimental program
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Embodiment Construction

[0019] figure 1 A battery unit 1 is shown with a housing 2 having a housing bottom 3 and four housing walls 4 - 7 . Four battery modules 8 are arranged in the housing 2, each battery module being configured to contain a measurement and control unit 9 with an integrated radio module, the antenna 10 of which is at least partially on or at the bottom 3 of the housing. was channeled a short distance up. Furthermore, the battery unit 1 has a central control unit 11 which likewise has an integrated radio module with an antenna 12 .

[0020] Note here that the measuring and control unit 9 can also be arranged within the battery module 8 and the central controller 11 can also be arranged outside the housing 2 . For the sake of clarity, the interconnection of the battery modules 8 is not shown here. The antenna 10 is now placed on the housing bottom 3 or at a short distance thereon so that it covers as large an area as possible. In this case, the antenna 10 of the upper left batter...

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PUM

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Abstract

The invention relates to a battery unit (1) comprising a housing in which at least two battery modules (8) are accommodated, wherein the battery modules (8) have a measuring and control unit (9), the measuring and The control units are data-connected to at least one central controller (11), wherein the measuring and control units (9) each have a radio module, wherein the antenna (10) of the radio module is at least partially arranged on the housing (2) on or at a short distance above the housing bottom (3), wherein the central controller (11) likewise has a radio module, wherein at least the central controller (11) is designed to operate according to the measurement and control unit (9 The quality of the received signal of ) judges that liquid has penetrated into the battery cell (1).

Description

technical field [0001] The invention relates to a battery unit, in particular as a high-voltage battery for an electric or hybrid vehicle. Background technique [0002] Such a battery unit usually includes a housing in which a plurality of battery modules are accommodated. The battery module itself has a number of individual cells connected in series and / or in parallel. The battery modules are then likewise connected in series or in parallel. The external contacts of the connected battery modules form the battery poles. It is also known here to assign a measurement and control unit to the battery modules, which measurement and control unit can measure the temperature of the individual cells and perform cell balancing. In this case, the measurement and control unit is connected to a central controller of the battery cells, to which the measured data are transmitted. In this case, the data connection takes place, for example, via a CAN bus. [0003] High-voltage batteries...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/42H01M10/48
CPCH01M10/425H01M10/48H01M10/482Y02E60/10
Inventor R.库贝
Owner VOLKSWAGEN AG
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