磁致伸缩位移传感器
The magnetostrictive displacement sensor, with its modular design and sealed structure, solves the problem of low assembly efficiency caused by too many sensor parts, and achieves high-precision displacement measurement and good environmental adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING TEBEIFU ELECTRONIC TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-17
AI Technical Summary
Existing magnetostrictive displacement sensors have too many parts assembled inside the cylinder and are inefficient, resulting in insufficient space utilization and complicated assembly.
It adopts a modular design and a sealed structure. The sensing module is an independent sealed modular structure, the circuit components are integrated through the bracket structure, the end plate is sealed to the shell, the cable is electrically connected to the end plate structure, and the bracket structure adopts an integrated molding process to ensure the stability and sealing of the internal components.
It improves assembly efficiency, enhances environmental adaptability and sealing, simplifies the maintenance process, and is suitable for use in environments with limited space.
Smart Images
Figure CN224517666U_ABST
Abstract
Claims
1. A magnetostrictive displacement sensor, characterized by, include: The outer shell structure has an opening and an outer tube structure at both ends in the first direction, respectively; An end plate structure is sealed to the opening, and a cable for connecting to external equipment is provided inside the end plate structure; A circuit assembly is disposed within the housing structure, the circuit assembly comprising a hollow support structure and at least one circuit board disposed on the support structure; A sensing module is disposed within the outer casing structure, and a portion of the sensing module is disposed within the support structure. The sensing module is electrically connected to the cable via the circuit board. The sensing module includes a magnetostrictive sensing component located at the other end of the first direction. The magnetostrictive sensing component is disposed within the outer tube structure. The sensing module is an independently sealed modular structure.
2. The magnetostrictive displacement sensor of claim 1, wherein, The circuit board specifically includes a signal board and a filter board connected by pins; The sensing module is connected to the signal board, and the filter board is connected to the cable.
3. The magnetostrictive displacement sensor of claim 2, wherein, The bracket structure is provided with a first latching part and a second latching part on both sides in the second direction, the signal board latches with the first latching part, and the filter board latches with the second latching part.
4. The magnetostrictive displacement sensor of claim 3, wherein, The support structure has a clearance opening on one side in the third direction, and a plug-in clearance cavity is provided inside the support structure. The plug-in clearance cavity is located on the side of the support structure in the third direction, and the plug-in clearance cavity is recessed towards the side away from the clearance opening.
5. The magnetostrictive displacement sensor of claim 2, wherein, The support structure has a positioning groove on one side in the first direction and an air-avoidance opening on one side in the third direction. Part of the sensing module is assembled into the support structure through the air-avoidance opening, and the side of the sensing module with the magnetostrictive sensing component abuts against the inner wall of the air-avoidance opening. The magnetostrictive sensing component protrudes from the support structure through the positioning groove.
6. The magnetostrictive displacement sensor according to any one of claims 1 to 5, wherein The bracket structure includes a cable passage and a buffer protrusion on the other side of the first direction, the cable passes through the cable passage, and at least part of the buffer protrusion is provided on opposite sides of the cable passage; The buffer protrusion abuts against the end plate structure.
7. The magnetostrictive displacement sensor according to any one of claims 1 to 5, wherein The support structure is integrally molded.
8. The magnetostrictive displacement sensor according to any one of claims 1 to 5, wherein The outer shell structure includes: A receiving chamber, one end of which is connected to the outer tube structure, and the receiving chamber has the opening at one end; An end cap structure is provided at one end of the outer tube structure; The accommodating chamber, the outer tube structure, and the end cap structure are welded into a single structure.
9. The magnetostrictive displacement sensor of claim 8, wherein, The outer circumferential wall of the receiving chamber is provided with a mating groove for fastening the set screw and a sealing groove for sealing.
10. The magnetostrictive displacement sensor according to any one of claims 1 to 5, wherein The end plate structure specifically includes: End plate body, through which the cable passes; A clamping member is threadedly connected to the end plate body, the cable passes through the clamping member, and the clamping member is used to fasten the cable; A sealing element is disposed between the clamping element and the end plate body.