发明名称 |
Loudspeaker system with forced air circulation and control circuit therefor |
摘要 |
A loudspeaker system has a diaphragm for producing sound, a loudspeaker driver mechanism operable for moving the diaphragm in response to an applied electrical signal from an audio signal source, a blower positioned for directing air under pressure over the loudspeaker driver mechanism so that heat generated by the loudspeaker driver mechanism can be convectively removed, and a control circuit electrically connected to the blower and adapted for connection to the audio signal source such that an increase in the applied electrical signal causes a corresponding increase in speed of the blower. The control circuit includes a power limiting device and a switching device that is connected in parallel with the power limiting device. The switching device is actuable from a normally closed state to an open state when the applied electrical signal is above a predetermined level to regulate the speed of the blower.
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申请公布号 |
US2002144856(A1) |
申请公布日期 |
2002.10.10 |
申请号 |
US20020114086 |
申请日期 |
2002.04.01 |
申请人 |
COMMUNITY LIGHT AND SOUND, INC. |
发明人 |
HOWZE BRUCE |
分类号 |
H04R9/02;(IPC1-7):H05K5/00 |
主分类号 |
H04R9/02 |
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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