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

V-shaped sandwich type linear motor stator and driving method thereof

A linear motor, sandwich technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve the problem of difficult to adjust the linear speed.

Pending Publication Date: 2022-01-14
南通智能感知研究院
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a V-shaped sandwich type linear motor stator and its driving method. By adding piezoelectric ceramic sheets to change the excitation mode, the symmetrical mode and antisymmetrical mode motion are separated, so as to try to solve the problem that the linear speed is difficult to be adjusted small.

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
  • V-shaped sandwich type linear motor stator and driving method thereof
  • V-shaped sandwich type linear motor stator and driving method thereof
  • V-shaped sandwich type linear motor stator and driving method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 As shown, a V-shaped sandwich-type linear motor includes two sandwich-type piezoelectric vibrators 1 and a clamping device 2, and the two piezoelectric vibrators 1 are connected through a clamping device 2, and the clamping device 2 is preferably connected to the pressure The nodal line position of the vibration of the electric vibrator 1 is conducive to the stability of the motor; the piezoelectric vibrator 1 includes a V-shaped front metal end cover 1-1, a rear metal end cover 1-2, a pre-tightening nut 3, and a piezoelectric element 4. Among them, the first end of the V-shaped front metal end cover 1-1 is a flexible hinge structure, the end of the V-shaped front metal end cover 1-1 is connected to the piezoelectric element 4 and the rear metal end cover 1-2 through the pre-tightening nut 3, and the piezoelectric vibrator 1 common V-shaped all-metal end cap 1-1.

[0021] Such as figure 2 As shown, the piezoelectric element includes 4 piezoelectric c...

Embodiment 2

[0024] This embodiment discloses the driving method of the above-mentioned V-shaped sandwich type linear motor stator, and simultaneously applies a voltage V to the piezoelectric ceramic group at the front metal end cover. a , simultaneously apply a voltage V to the piezoelectric ceramic group at the rear metal end cap b . where the voltage V a with the voltage V b The phase difference is 0.5π. image 3 It shows one of the polarization directions of the piezoelectric ceramic sheet. The two piezoelectric ceramic groups at the front metal end cap expand and contract in the same direction to form a symmetrical mode, and only generate normal vibration displacement. The two piezoelectric ceramic groups at the rear metal end cap A group of piezoelectric ceramic groups are inversely stretching each other at the same time to form an antisymmetric mode, and only generate tangential vibration displacement. At this time, the normal vibration displacement and tangential vibration displ...

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 provides a V-shaped sandwich type linear motor stator and a driving method thereof, and belongs to the technical field of ultrasonic motors. The V-shaped sandwich type linear motor stator is characterized in that two sandwich type piezoelectric vibrators are adopted to form a V-shaped structure, the number of piezoelectric ceramic sheets is increased, and a symmetric mode and an asymmetric mode are separated by adjusting the polarization direction of piezoelectric ceramics to achieve decoupling of tangential displacement and normal displacement, so that the tangential displacement and the normal displacement can be independently controlled, and low-speed large torque is achieved.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic motors, and in particular relates to a V-shaped sandwich type linear motor stator and a driving method thereof. Background technique [0002] Ultrasonic motor technology, along with the rise of intelligent materials and the progress of modern control technology, has developed rapidly in recent decades, and has gradually replaced electromagnetic motors in special environments, high-precision working conditions, micro-drive fields, etc. A new type of drive. Among them, the V-shaped linear ultrasonic motor is a representative ultrasonic motor with typical structure and wide application. It has the characteristics of large output force, high output speed, high positioning accuracy, large thrust-to-weight ratio, no electromagnetic interference and flexible structure. It has been successfully applied in cell micromanipulation, precise positioning and micromachining. The V-shaped linear ultrasonic m...

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): H02N2/02H02N2/04H02N2/06
CPCH02N2/02H02N2/04H02N2/06
Inventor 冶竣峰袁辉吴伟
Owner 南通智能感知研究院
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