Electric leakage detection circuit of handle switch and handle switch

Abstract

The invention provides an electric leakage detection circuit of a handle switch and the handle switch, and the detection circuit comprises a whole vehicle circuit and an instrument circuit. The whole vehicle circuit comprises a battery, a door lock switch, a first whole vehicle circuit and a second whole vehicle circuit; the instrument circuit comprises a reference circuit, a first instrument circuit and a second instrument circuit; and the first instrument circuit is connected with the first whole vehicle circuit, the second instrument circuit is connected with the second whole vehicle circuit, and the reference circuit is respectively connected with the first instrument circuit and the second instrument circuit. The problem that the steering indicator lamp of the instrument is lighted by mistake due to the leakage current of the handle switch is effectively solved, the power loss of the handle switch is greatly reduced, the service life of the handle switch is prolonged, and the problem of the leakage current of the handle switch in the actual use process can be solved.

Description

technical field [0001] The present application relates to the technical field of circuit detection, in particular, to a leakage detection circuit of a handle switch and a handle switch. Background technique [0002] There are some handle switches that need to be exposed to the external environment, and these switches basically have no sealing and waterproof protection measures, resulting in rainwater entering the switch in rainy days. Rainwater contains chemical substances such as acids, alkalis, and salts. These chemical substances are ionized in water to form conductive ions, so rainwater can conduct electricity, which will cause leakage current even when the handle switch is not closed. [0003] The old-fashioned handle switch, due to reasons such as technology and cost, generally uses an indicator light for indication, and the turn indicator on the instrument panel also uses a light bulb. In the case that the handle switch is not closed and leakage current has occurred,...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the embodiment of the present application is to provide a leakage detection circuit of the handle switch and the handle switch, which effectively solves the problem that the leakage current of the handle switch causes the turn indicator light of the instrument to turn on incorrectly, and greatly reduces the power of the handle switch. Power loss not only increases the service life, but also solves the problem of leakage current of the handle switch encountered in actual use

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