Dual-stator traveling wave ultrasonic micromotor with high Q piezoelectricity
A double-stator, micro-motor technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of unsatisfactory, low quality factor, etc., to avoid surface External displacement and angular deflection, prolonging the working life and ensuring the effect of high quality factor
Inactive Publication Date: 2019-05-21
XIHUA UNIV
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Problems solved by technology
[0006] In view of the above-mentioned deficiencies in the prior art, the dual-stator traveling-wave ultrasonic micromotor with high-Q piezoelectricity provided by the present invention solves the condition that the existing ultrasonic micromotor cannot satisfy the condition of "zero dual-mode displacement", and The problem of its low quality factor
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[0049] The specific embodiments of the present invention are described below so that those skilled in the art can understand the present invention, but it should be clear that the present invention is not limited to the scope of the specific embodiments. For those of ordinary skill in the art, as long as various changes Within the spirit and scope of the present invention defined and determined by the appended claims, these changes are obvious, and all inventions and creations using the concept of the present invention are included in the protection list.
[0050] Such as Figure 3 to Figure 4 As shown, a double-stator traveling wave ultrasonic micromotor with high Q value piezoelectric, motor cover 3, first stator, rotor 13, second stator, housing 12, motor base 9 and output shaft 11;
[0051] The first stator, the rotor 13 and the second stator are sequentially sleeved on the output shaft 11 through the bearing 10;
[0052] The second stator is fixedly arranged on the motor...
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The invention discloses a dual-stator traveling wave ultrasonic micromotor with high Q piezoelectricity. The dual-stator traveling wave ultrasonic micromotor comprises a motor cover, a first stator, arotor, a second stator, a shell, a motor base and an output rotary shaft, wherein the first stator, the rotor and the second stator are sheathed on the output rotary shaft through a bearing in sequence, the second stator is fixed on the motor base, the first stator, the rotor, the second stator and the output rotary shaft are all arranged in the shell, one end of the output rotary shaft penetrates out of the motor base to be connected with a motor drive mechanism, and the motor cover covers the shell. In the dual-stator traveling wave ultrasonic micromotor with high Q piezoelectricity, an anchor point is arranged in a stable displacement point in a stator resonance mode for the first time, so that obvious out-of-plane displacement and angle deflection of the anchor point and a cantileverbeam are prevented, the stator is prevented from consuming energy of surrounding environment through the cantilever beam to the greatest extent, and electromechanical conversion efficiency and high-quality factor of the system are ensured.
Description
technical field [0001] The invention relates to the technical field of ultrasonic motors, in particular to a dual-stator traveling-wave ultrasonic micro-motor with high-Q piezoelectricity. Background technique [0002] Micro-ultrasonic motor is a new type of driving device designed and manufactured by MENS technology. Under the excitation of cross-knitting voltage, the reverse electric effect of the piezoelectric material layer is used to excite the stator to generate high-frequency micro-amplitude vibration. The tangential friction drives the rotor to rotate to realize the torque output of the motor, thereby realizing the conversion of electrical energy to machinery. Compared with traditional electromagnetic motors, micro-ultrasonic motors have the advantages of small size, fast response (milliseconds), low speed, high torque, low noise, strong anti-electromagnetic interference and self-locking capabilities, and have broad application prospects. [0003] During the working...
Claims
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IPC IPC(8): H02N2/16
Inventor 何江波
Owner XIHUA UNIV