Title: Anti-shock device for electric water heater with time sharing detecting function
Application Number: 200610154641 Application Date: 2006.11.13
Publication Number: 1988301 Publication Date: 2007.06.27
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H02H3/14;G05B15/02
Applicant(s) Name: Tan Qiren Address:
Inventor(s) Name: Tan Qiren
Attorney & Agent:
Abstract:
    This invention relates to an anti-shock device for electric water heater with time-sharing testing function characterizing that a zero-earth wire detection device and a live-earth wire potential difference detection device are composed of a rectifying circuit, a voltage-stabilizing circuit and three-kinds of switch circuits to be divided by zone bits, in which, the input ends crossover between the zero-earth wire and the live-earth wire, and the output ends are connected with the input of a single-chip processor, the output of which is connected with a switch executing circuit composed of a switch tube and a relay, the touch points of the relay are connected with the input and output ends of the live wire, the zero-wire and the earth wire, the input end of the invented signle-chip processor has the time-sharing detection function and the input-output has the polarity converwion function.
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