Detecting circuit and method for short circuit of elevator door lock loop
A technology for detecting circuits and energized circuits, which is applied to elevators, lifts, transportation and packaging in buildings, etc. It can solve the problems of undetectable, pinching, cutting, falling, casualties and other accidents, so as to avoid the occurrence of danger and avoid Dangerous situations occur and the effect of avoiding dangerous situations
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[0023] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.
[0024] refer to figure 1 , the present invention provides a detection circuit 100 for a short circuit of an elevator door lock circuit. The door lock circuit 10 of an elevator includes a contact switch 1KM-nKM of a floor door lock and a contact switch UK1 of a car door lock, wherein the floor door lock The safety contact 1KM-nKM and the car door lock safety contact UK1 are connected in series and connected to a voltage U, and the first terminals of several layers of door lock safety contacts 1KM-nKM connected in series are connected to a voltage U to form a first Node 1, the second end is connected to the first end of the car door lock safety contact UK1 and forms the second node 2, the second end of the car door lock safety contact UK1 form...
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