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Fuse holder for storage battery and power supply back-up system using the fuse holder

  • US 5,258,238 A
  • Filed: 09/12/1991
  • Issued: 11/02/1993
  • Est. Priority Date: 09/20/1990
  • Status: Expired due to Term
First Claim
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1. A fuse holder adapted to be connected to a charge-discharge line which connects to a storage battery, a charge line for charging the storage battery and a discharge line for discharging the storage battery, said fuse holder comprising:

  • a holder casing having mutually confronting first and second walls which define a cavity within the holder casing;

    a first contact provided on the first wall of the holder casing, said first contact being electrically connected to the charge/discharge line;

    a second contact provided on the second wall of the holder casing, said second contact having first and second parts which are mutually isolated and are exposed at a surface confronting the first contact, said first part being electrically connected to the charge line, said second part being electrically connected to the discharge line;

    a fuse having a first end connected to the first contact and a second end connected to the second contact, said second end of the fuse making contact with the first and second parts of the second contact thereby electrically connecting the charge line and the discharge line; and

    a spring receiving part which is connected to the second end of the fuse, and spring means for urging the spring receiving part towards the first contact, so that the second end of the fuse separates from the first and second parts of the second contact when a current exceeding a rated current flows through the fuse and the fuse softens.

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