发明名称 |
Method and apparatus for preventing overheating of security gate motor |
摘要 |
A security gate operating system, is disclosed which comprises an electrically powered motor; a thermally controlled circuit breaker set to remove power to the motor when the motor reaches a preselected threshold temperature; a cooling fan associated with the motor and selectively powered to provide auxiliary cooling to the motor to prevent the motor from overheating; and a cooling fan motor controller, adapted to selectively supply power to the cooling fan when the motor is approaching the threshold temperature. The apparatus can further comprise the cooling fan controller being a thermo-static switch set to close at a preselected temperature below the threshold temperature, or a programmed microprocessor/microcontroller programmed to provide power to the cooling fan at a preselected temperature below the threshold temperature or when the temperature of the motor is about to reach the preselected temperature.
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申请公布号 |
US6850822(B2) |
申请公布日期 |
2005.02.01 |
申请号 |
US20010861283 |
申请日期 |
2001.05.18 |
申请人 |
THE CHAMBERLAIN GROUP, INC. |
发明人 |
PARSADAYAN WALTER;HOM WAYNE C.;PARSADAYAN ALEX |
分类号 |
G05B23/02;(IPC1-7):G05D23/00;H02H7/08 |
主分类号 |
G05B23/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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