Non-contact rotary movement sensor provided with independent switch

Abstract

It is an object of the present invention to provide a non-contact rotary movement sensor capable of, by making magnetic fields from a plurality of permanent magnets not mutually affected, independently implementing an output signal and a switching signal using the same. It is another object of the present invention to provide a non-contact rotary movement sensor provided with an independent switch which outputs an output signal by using a permanent magnet and a Hall device and outputs a switching signal using a contact switch. The non-contact rotary movement sensor with an independent switch includes: a rotating body, provided with a first permanent magnet installed on an upper part, a key slot installed on a lower part, and a second permanent magnet installed on a trigger which is projected on a part of an external circumference, for being rotatably driven by an external force, wherein the first permanent magnet and the second permanent magnet are installed not to be affected by mutual magnetic fields; and a printed circuit board provided with at least one Hall device for outputting a linear output signal by detecting a direction change of a magnetic field of the first permanent magnet and at least one lead switch for outputting a switching signal by detecting a strength change of a magnetic field of the second permanent magnet.

Description

technical field [0001] The present invention relates to a non-contact rotary displacement sensor. According to the present invention, two permanent magnets with different magnetic flux directions on a rotating body correspond to Hall devices and guide switches respectively. , or a permanent magnet corresponding to the Hall device (HallDevice), and then the conversion signal can independently generate an output signal and a conversion signal through the contact switch. Background technique [0002] In general, the rotary displacement sensor is mainly used to apply the continuously changing physical variables of the rotating body to the circuit, while the rotary position displacement sensor with linear electrical signal output function has been widely used in the industrial field. [0003] Rotary displacement sensors are mainly used in the following areas: position control of vehicle engine throttle, steering wheel control, vehicle height control, variable wind ring position c...

AI Technical Summary

Problems solved by technology

However, the structure of the above-mentioned patent includes a uniform sensing strip with multiple pores, so it has the disadvantage that its production structure is relatively complicated

And because the switch function depends on the signal output, it has the disadvantage of not being able to meet its individual functions

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