Control and protection device for low-voltage electrical appliance

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9350157
APP PUB NO 20140368961A1
SERIAL NO

14369077

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Disclosed is a control and protection device for a low-voltage electrical apparatus, comprising a pedestal and a control and protection module. The control and protection module may be plugged into the pedestal and is replaceable. The pedestal comprises a base and a housing, and is further provided with a moving contact, a static contact, and a current conductor connected to a main circuit current; a control electromagnet operation mechanism for controlling close and open of the moving contact and the static contact according to a control signal, and maintaining a close or open status of the moving contact and the static contact; a manual operation knob providing a control signal for controlling the close and open of the moving contact and the static contact; a control contact connected to the manual operation knob; and a current sensor for detecting a current that flows through the main circuit current conductor and generating a sensing signal. The control and protection device further comprises: a signal processing unit for controlling a state of the control electromagnet according to the sensing signal via an electrical circuit; and a tripping device for controlling actions of the operation mechanism with a mechanical connection in response to the signal processing unit. The current sensor has a secondary circuit connection detection device.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG CHINT ELECTRICS CO LTD325603 NO 1 ZHENGTAI ROAD ZHENGTAI INDUSTRIAL PARK BEIBAIXIANG TOWN YUEQING CITY WENZHOU CITY ZHEJIANG PROVINCE WENZHOU CITY ZHEJIANG PROVINCE 325603
SEARI ELECTRIC TECHNOLOGY CO LTD505 WUNING ROAD SHANGHAI 200063

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gu, Changxun Shanghai, CN 4 8
Huang, Beiming Shanghai, CN 2 0
Ji, Huiyu Shanghai, CN 2 1
Jia, Feng Shanghai, CN 8 9
Lin, Jianrong Shanghai, CN 2 22
Xi, Hong Shanghai, CN 4 2
Zeng, Ping Shanghai, CN 12 103
Zhang, Di Shanghai, CN 272 1341

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