Bending single-phase driven rotary ultrasonic motor

A single-phase drive, ultrasonic motor technology, used in generators/motors, piezoelectric effect/electrostrictive or magnetostrictive motors, electrical components, etc., can solve the problem of poor speed uniformity, low efficiency, and large radial friction. And other issues
CN101030740AInactive Publication Date: 2007-09-05JIANGSU UNIV
0 Cites 40 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU UNIV
Publication Date
2007-09-05
Estimated Expiration
Not applicable Β· inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention is concerned with the ultrasound electric machine of the electrical micro-machine, especially the bending rotation ultrasound electric machine that is single-phase drive. It consists of: the six-sliced piezoelectric ceramic slice, the stator, the rotor and the pinch device. Each piezoelectric ceramic slice devices into two parts that are reversed phase polarization by the diameter as the axis of symmetry, one part expands and the other part reduce after giving the same voltage. The piezoelectric ceramic slice rotates 60 degree from top to bottom withershins. All the piezoelectric ceramic slices drive by the single-phase voltage with same phase. The body shape of the machine is pyramid shape.
Need to check novelty before this filing date? Find Prior Art

Description

Technical field:

[0001] The invention belongs to an ultrasonic motor in the field of micro-motors, in particular to a single-phase driven bending and rotating ultrasonic motor. Background technique:

[0002] Ultrasonic motor is a new type of micro motor using the inverse piezoelectric effect of piezoelectric ceramics and ultrasonic vibration. The principle of the ultrasonic linear motor is completely different from the traditional electromagnetic induction motor. It has high power density, simple and compact structure, small inertia, fast response, good control characteristics, low speed and large torque (or large thrust), self-locking when power is off, High position resolution, direct drive of load, high efficiency, no noise, anti-electromagnetic interference and no magnetic field itself have become a novel micro-special motor. It is not only a brand-new automatic control element, but also a brand-new transmission form.

[0003] The literature "Zhu Hua, Zhao Chunsheng, D...

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