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Electronic apparatus having cooling system

  • US 5,484,012 A
  • Filed: 12/15/1994
  • Issued: 01/16/1996
  • Est. Priority Date: 03/15/1994
  • Status: Expired due to Term
First Claim
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1. An electronic apparatus having a housing in which at least a heat source is housed, said housing being provided with an intake port and an exhaust port, the electronic apparatus comprising:

  • a first cooling fan mounted in the exhaust port;

    a second cooling fan placed near said heat source;

    a first control means for controlling a revolving speed of said first cooling fan; and

    a second control means for controlling a revolving speed of said second cooling fan in a first mode when the revolving speed of said first cooling fan is less than a reference speed and in a second mode when the revolving speed of said first cooling fan is greater than the reference speed, the revolving speed of said second cooling fan controlled in the first mode being greater than the revolving speed of said second cooling fan controlled in the second mode.

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