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Abnormal voltage detection apparatus for detecting voltage abnormality in assembled batterey

  • US 20060001403A1
  • Filed: 06/20/2005
  • Published: 01/05/2006
  • Est. Priority Date: 06/21/2004
  • Status: Active Grant
First Claim
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1. An abnormal voltage detection apparatus for use in an assembled battery comprising a plurality of battery blocks connected in series to each other, said abnormal voltage detection apparatus detecting voltage abnormality in said assembled battery, each battery block comprising at least one secondary battery, said abnormal voltage detection apparatus comprising:

  • a plurality of signal detectors each provided in each of battery blocks, each of said signal detectors detecting either one of voltage abnormality and normality in said each battery block based on a voltage of said each battery block, generating an abnormality detecting signal containing information about either detected one of the voltage abnormality and normality, and outputting the abnormality detecting signal;

    a signal generator for generating an abnormality detecting information signal containing information about whether or not any of said battery blocks in the voltage abnormality is present based on the abnormality detecting signals; and

    a first transmission device having an input terminal pair and an output terminal pair which are electrically insulated from each other, said first transmission device transmitting the abnormality detecting information signal to an external apparatus.

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