Unlock instant, AI-driven research and patent intelligence for your innovation.

A wide temperature domain huge magnet driven flexible magnetism controlled driver

A technology of giant magnetostriction and magnetostrictive rods, applied in piezoelectric effect/electrostriction or magnetostriction motors, generators/motors, electrical components, etc. Provide bias magnetic field, giant magnetostrictive material bulky and other problems

Inactive Publication Date: 2008-03-26
BEIHANG UNIV
View PDF1 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bottleneck problem in the application of giant magnetostrictive materials in the aerospace field is that they are still cumbersome in some aspects and require miniaturization.
At the same time, since the heating problem has a great impact on tiny devices, it is not suitable to use the electromagnetic coil to provide the bias magnetic field

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
  • A wide temperature domain huge magnet driven flexible magnetism controlled driver
  • A wide temperature domain huge magnet driven flexible magnetism controlled driver
  • A wide temperature domain huge magnet driven flexible magnetism controlled driver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0018] A kind of wide temperature range giant magnetostrictive magnetic control driver of the present invention, referring to Fig. 1, shown in Fig. 3B, the top of outer casing 12 is upper end cover 14, and the center of upper end cover 14 is provided with output piece 8, and output piece 8 The center hole 81 is provided with a force sensor 19, the end face of the force sensor 19 is in contact with one end of the disc spring group, the other end of the disc spring group is in contact with the nut 15, and the nut 15 is connected to the threaded section 101 of the screw rod 10; It is the lower end cover 11, and the central hole of the lower end cover 11 protrudes from the lead wire group 13 (the lead wire group 13 refers to the lead wire of the Tesla meter and the lead wire of the thermometer); as shown in Figure 2, a ring is installed in the outer shell 12 Shap...

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

This invention discloses a huge magnetostrictive drive working under wide temperature sphere including an excitation set, a constant magnetic set, an output piece and a screw, in which, the excitation set is sleeved in a round hole of the constant magnetic set and is composed of a coil, a magentostrictive rod and a magnetic conduction ring, the coil winds the magnetostrictive rod, the magnetic conduction ring is set under the rod and contacted to one end of the rod, the other end of the rod is contacted with the end surface of the neck of an output piece, the screw section of the screw passes through the conduction ring, the rod, the output piece, a force sensor and a disk spring to be compacted by a nut, which can work under -80-100deg.C.

Description

technical field [0001] The invention relates to a driver, more particularly, a giant magnetostrictive magnetic control driver applicable to a wide temperature range of -80°C to 100°C with large temperature difference. Background technique [0002] Terfenol-D, a rare earth giant magnetostrictive material, has the characteristics of large magnetic strain, large output force, high electromechanical coupling coefficient and rapid response, and has become the preferred material for new intelligent drive devices. However, in some special service environments, such as the air-space environment with a large temperature difference (-80°C to 100°C), the magnetostrictive properties of the rare earth giant magnetostrictive material Terfenol-D will be significantly reduced at high and low temperatures, resulting in The output strain of the driving device is unstable. [0003] As a new type of high-efficiency electric (magnetic) energy-mechanical (acoustic) energy conversion materials, g...

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 Applications(China)
IPC IPC(8): H02N2/02
Inventor 张天丽徐惠彬蒋成保杨雷
Owner BEIHANG UNIV