Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Magnetostriction mechanical device for magnetic field sensing

A magnetostrictive and mechanical device technology, applied in the direction of magnetostrictive relays, protection switch operation/release mechanisms, relays, etc., can solve the problems of long protection action time and large errors, and achieve less introduction of errors, simplified deformation measurement, fast response effect

Active Publication Date: 2014-09-17
HARBIN INST OF TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a magnetostrictive mechanical device for magnetic field sensing to solve the problem of too many errors introduced by too many protection parts of the existing optical current transformer based on the magnetostrictive principle, and too many The protective device causes the problem that the protection action time is too long

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Magnetostriction mechanical device for magnetic field sensing
  • Magnetostriction mechanical device for magnetic field sensing

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0009] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, the described device of this embodiment comprises one-stage lever transmission device 1, two-stage lever transmission device 2, magnetostrictive rod 3, magnetic isolation plate 4, one-stage arc-shaped strong magnet 5, two-stage circle The arc-shaped strong magnet 6, the trigger head 7 and the trigger detector 8, the primary lever transmission device 1 is composed of a first lever, a first lever shaft 12 and a first ferromagnetic material layer 14, and the first lever includes a first long rod 11 And the first short rod 13, the outside of one end of the first short rod 13 is provided with a first ferromagnetic material layer 14, the other end of the first short rod 13 is connected with one end of the first long rod 11 and made into one, the first The side wall of the other end of the long rod 11 is connected with an end of the secondary arc-shaped strong magnet 6, the first lever ...

specific Embodiment approach 2

[0012] Specific implementation mode two: combination figure 1 Describe this embodiment, the magnetostrictive rod 3 of this embodiment is made of rare earth giant magnetostrictive material Tb 0.27 Dy 0.73 Fe 2 Made, the length of the magnetostrictive rod 3 is 180-220mm, and this structure is used to reduce interference. Other implementation manners are the same as the specific implementation manner 1.

specific Embodiment approach 3

[0013] Specific implementation mode three: combination figure 1 To describe this embodiment, the horizontal distance between the trigger detector 8 and the trigger head 7 of this embodiment is 30-40mm. Other implementation manners are the same as the specific implementation manner 1.

[0014] How it works: combined figure 1 and figure 2 Explain the working process of the present invention: when the wire passes through the current, the magnetostrictive rod 3 is placed in the magnetic field near the wire, and the magnetostrictive rod 3 performs telescopic movement under the action of the magnetic field to drive the magnetic isolation The plate 4 reciprocates, and the magnetic isolation plate 4 pushes the first-level arc-shaped strong magnet 5, and the first-level arc-shaped strong magnet 5 drives the first-level lever transmission device 1 to move by the magnetic adsorption force, so The primary lever transmission device 1 drives the secondary lever transmission device 2 to ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a magnetostriction mechanical device, particularly relates to a magnetostriction mechanical device for magnetic field sensing and solves problems of excessive errors and overlong protection action time caused by existing excessive protection elements of optical current transformers on the basis of a magnetostriction principle. A first ferromagnetic material layer is arranged on the outer portion of a first short rod, the first short rod and a first long rod are connected with each other and produced into a whole, the first long rod is connected with a second-stage arc-shaped strong magnet, a first lever shaft penetrates through the first long rod, a magnetostrictive stick is connected with a magnetic shielding plate which is connected with a first-stage arc-shaped strong magnet, the first-stage arc-shaped strong magnet is connected with the side wall of the first short rod, a second ferromagnetic material layer is arranged on the outer portion of a second short rod, the second short rod and a second long rod are connected with each other and produced into a whole, a second lever shaft penetrates through the second long rod, the second long rod is connected with a trigger head, and the trigger head corresponds to a trigger detector. The magnetostriction mechanical device has the advantages of being short in processing time, few in used components and rapid in movement.

Description

technical field [0001] The invention relates to a magnetostrictive mechanical device. Background technique [0002] The current transformer protection part design based on the principle of magnetostriction is that when the bus bar is short-circuited, the current flowing through it will become larger than the normal value, and the mechanical deformation generated by the rare earth giant magnetostrictive material will be converted into electrical current after measurement. The signal, the electrical signal is transmitted to the control circuit for analysis, and the circuit breaker signal is generated when the short circuit is confirmed. Finally, the electrical signal acts on the circuit breaker to open the circuit. In this process, the processing of the signal is more complicated, and some errors may occur and cause misoperation. Or according to the action, and the required circuit structure is also very complicated. Contents of the invention [0003] The purpose of the pre...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10H01H55/00
Inventor 申岩郭志忠张国庆于文斌陆忠峰程嵩
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com