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Battery pack

  • US 6,440,602 B1
  • Filed: 02/08/2000
  • Issued: 08/27/2002
  • Est. Priority Date: 02/08/1999
  • Status: Expired due to Fees
First Claim
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1. A battery pack comprising:

  • a battery provided with a positive plate and a negative plate and serving as a power supply of an electronic device, said battery providing an available period of time to use the electronic device, a control circuit board electrically connected with both said positive plate and said negative plate of said battery;

    a case shaped of heating element electrically connected with said control circuit board said case shaped heating element comprising a bottom plate portion and at least three side wall portions to receive said battery therein;

    a lower casing for receiving therein said battery within said case shaped heating element;

    a board support base provided with a plurality of terminal output ports and projected outward from a side portion of said lower casing, such that said board support base mounts thereon said control circuit board which is projected outward from said case shaped heating element;

    an upper casing for covering said battery, said case shaped heating element, said control circuit board, and said lower casing; and

    whereby, even when an ambient temperature of said battery decreases to a level reducing the available period of time to use the electronic device, said battery prevents the available period of time to use the electronic device from decreasing by activating said case shaped heating element.

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