Patent ID: 6501648
Filing Date: 2002-12-31
Classification: F24F,G06F,Y02B

Abstract:
A self-stabilizing heat exhaust system, comprising:n rate-variable fans, wherein n is a natural number and n&gE;2, said rate-variable fan further comprising: a mth signal-output terminal, wherein m is from 1 to n as well as m and n are natural number, said mth signal-output terminal outputting a mth speed signal, said mth speed signal being a mth normal signal or a mth abnormal signal, said mth normal signal representing that the mth fan is normal, said mth abnormal signal representing that the mth fan is abnormal; a mth signal-input terminal, when m being not 1, said mth signal-input terminal being coupled to a mâˆ’1th signal-output terminal, said mth signal-input terminal being used to receive said mâˆ’1th speed signal, when m being 1, said mth signal-input terminal being coupled to a nth signal-output terminal, said mth signal-input terminal being used to receive said nth speed signal; and a mth control circuit, when m being not 1, said mth control circuit responding to a mâˆ’1th abnormal signal to make said mth rate-variable fan rotate at a higher rotation rate, said mth control circuit responding to said mâˆ’1th normal signal so as to make said mth rate-variable fan rotate at a lower rotation rate, when m being 1, said mth control circuit responding to said nth abnormal signal to make said mth rate-variable fan rotate at said higher rotation rate, said mth control circuit responding to said mâˆ’1th normal signal to make said mth rate-variable fan rotate at said lower rotation rate.