Displacement amplification structure of traveling wave micro-actuator
A micro-actuator and displacement amplification technology, which is applied in the direction of electrical components, piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, etc. Face distance and other issues, to achieve the effect of output efficiency, high speed, and increase the tangential speed
Inactive Publication Date: 2020-11-17
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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- Description
- Claims
- Application Information
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Problems solved by technology
At present, the traveling wave micro-actuator in the prior art is mainly composed of a circular vibrating membrane surface, including a structural support layer, upper and lower electrodes and functional layers, and there is no additional structure for increasing the distance from the stator surface particle to its neutral plane.
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[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0022] The object of the present invention is to provide a displacement amplification structure of a traveling wave micro-actuator to solve the above-mentioned problems in the prior art and improve the output efficiency and load speed of the traveling-wave micro-actuator.
[0023] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunctio...
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Abstract
The invention discloses a traveling wave micro-actuator displacement amplification structure, and the structure comprises a rack; the rack is arranged on a stator of a traveling wave micro-actuator, the rack protrudes out of the stator of the traveling wave micro-actuator and is arranged towards a rotor in the axis direction of the stator of the traveling wave micro-actuator, and the area of the top face of the rack is smaller than that of the stator of the traveling wave micro-actuator. According to the displacement amplification structure of the traveling wave micro-actuator, the rack is arranged on the surface of the stator and protrudes out of the surface of the stator, the neutral surface is hardly changed, the distance between stator surface particles and the neutral surface is increased, and therefore, the displacement of elliptical motion of the stator surface particles in the traveling wave transmission process is increased, and the tangential speed of the elliptical motion isincreased; therefore, more energy is provided for the rotation of the rotor, a higher rotating speed is obtained, and the output efficiency is improved.
Description
technical field [0001] The invention relates to the technical field of traveling-wave micro-actuators, in particular to a displacement amplification structure of a traveling-wave micro-actuator. Background technique [0002] Traveling wave micromotor is a kind of tiny driving device, which has great application potential. Traveling wave micro-driver (stator), as the actuating device in micro-motor, is the key to realize load (rotor) rotation and torque output. Structural optimization of the micromotor stator is beneficial to improve the load capacity. [0003] In a traveling wave micromotor, the mechanical energy transfer process between the stator and the rotor is realized through the interaction between the particles on the traveling wave surface and the rotor. The basic contact surface conditions are as follows: figure 1 shown. In the working state of the micro-motor, the contact surface of the stator and the rotor generates an interaction force, and the magnitude of t...
Claims
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Login to View More IPC IPC(8): H02N2/16H02N2/12
CPCH02N2/16H02N2/123
Inventor 孙翔宇杜亦佳王艺程陈余李小石弓冬冬杨天宇
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS