Displacement sensor

Abstract

The present invention relates to a detection device. A displacement sensor according to the embodiment of the present invention includes a coil structure consisting of wound coil; a shield member formed to surround an outer periphery of the coil structure; and a housing, wherein the housing comprises an upper side wall part surrounding an outer periphery of the shield member and a lower side wall part formed to extend from the upper side wall part, wherein an inner circumferential surface of the lower side wall part is protruded toward the inside of the housing more than an inner circumferential surface of the upper side wall part, wherein an outer circumferential surface of the lower side wall part may include a depressed region formed to be depressed into the inside of the housing by a predetermined depth. In addition, various embodiments can be provided.

Description

technical field [0001] Field of the Invention The present invention relates to a displacement sensor, and more particularly, to a displacement sensor for easily adjusting the position within a product. Background technique [0002] The non-contact displacement sensor is a position sensor that detects an object at a spaced apart position, and is generally named a gap sensor (Gap sensor). A general gap sensor can form a magnetic field around the coil by high-frequency current flowing through the coil of the probe, and detect the distance between the coil and the object based on the eddy current generated by the object within the magnetic field. [0003] This gap sensor is used for various purposes in products in various industrial fields, and, as in the prior art document 1 (Korean Patent Laid-Open Publication No. 10-1084477), can also be arranged in a refrigeration system. Here, the refrigerating system is a system for supplying cold water to a cold water demand place, chara...

AI Technical Summary

Problems solved by technology

[0006] However, in the case where the gap sensor includes the coil structure as described above, it is difficult to form the coils formed on the top and bottom surfaces of the detection module uniformly for each sensor, and the winding intervals of the respective coils are not constant. The impedance (impedance) is not constant

In addition, since the size of both ends connected to the coil is limited, there is a problem that the physical connection between the terminal and the PCB is easily disconnected

And there is also the following problem, and since the gap sensor is constituted by the physical combination of the detection module and the PCB, only space constraints can occur when the gap sensor is arranged in the product, so there is a problem in order to arrange the gap sensor close to it as a detection The problem that the position of the rotation axis of the object, etc., needs to secure enough space for the gap sensor

[0007] In addition, there is also the following problem. Since the existing disposition space of the gap sensor in the product is formed to correspond to the size and shape of the gap sensor, it is difficult to determine the position of the gap sensor after the gap sensor is disposed in the product disposition space. make minor adjustments

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