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Fuse and battery pack containing the fuse

  • US 6,377,432 B1
  • Filed: 02/24/2000
  • Issued: 04/23/2002
  • Est. Priority Date: 02/26/1999
  • Status: Expired due to Fees
First Claim
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1. A battery pack comprising:

  • a plurality of batteries having terminal electrodes, said batteries being arranged parallel to each other; and

    a plurality of fuses connecting said batteries in series via said terminal electrodes, each of said fuses comprising a laminate comprising a plurality of metal plates having different thermal expansion coefficients laminated together, wherein said metal plates have melting portions which are melted and cut off when an overcurrent flows through said fuse, and wherein said fuses are connect to said terminal electrodes such that when said fuses are melted and cut off by heat generated by the overflow current, a mechanical deforming force caused by the different thermal expansion coefficients of said metal plates is applied to said melted portions of said fuses such that said melting portions of said fuses are deformed in a direction away from said batteries so as to be separated from said batteries.

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