发明名称 |
INTELLECTUALIZED POLARITY IDENTIFICATION DEVICE |
摘要 |
The invention involves an intellectualized polarity identification device which comprises an electromagnetic module connected with a control circuit. The electromagnetic module comprises a magnetic inductor (electromagnet), a movable contact plate coaxially set with the magnetic inductor (electromagnet) and stationary contact plates. The control circuit comprises a reversed-polarity alarm protecting circuit connected with a correct-polarity conducting circuit. The reversed-polarity alarm protecting circuit comprises an alarm circuit and a protection circuit, the protection circuit comprising a diode and a photocoupler. The correct-polarity conducting circuit comprises a conduction circuit and an indicator circuit, respectively connected with the photocoupler. The intellectualized polarity identification device is electromagnetically controlled such that a closed circuit is created only when the device is connected with the correct polarity.
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申请公布号 |
US2010302052(A1) |
申请公布日期 |
2010.12.02 |
申请号 |
US20100703174 |
申请日期 |
2010.02.09 |
申请人 |
SHANGHAI GUANGWEI ELECTRIC & TOOLS CO., LTD. |
发明人 |
FAN YEPING;JIANG ZHILIANG;MA WEILING;ZHANG ZHONGREN |
分类号 |
G08B21/00;H01H47/00 |
主分类号 |
G08B21/00 |
代理机构 |
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代理人 |
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地址 |
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