Ultrasonic motor having two-sided teeth metal-plastic compound stator
A composite stator, metal-plastic technology, applied in the direction of piezoelectric effect/electrostrictive or magnetostrictive motors, generators/motors, electrical components, etc., can solve the problems of low output power and low driving efficiency of ultrasonic motors , to achieve the effect of reducing material cost and processing cost, improving driving efficiency and increasing friction coefficient
Active Publication Date: 2017-07-28
NINGBO UNIV
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Problems solved by technology
[0004] The invention provides an ultrasonic motor with a metal-plastic composite stator with double-sided teeth, in order to solve the problems of small output power and low driving efficiency of an ultrasonic motor with a plastic stator with single-sided teeth
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[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0019] see figure 1 and Figure 8 Explain, an ultrasonic motor with a double-sided tooth metal-plastic composite stator, which includes a shell 2 and a base 7 connected together; it also includes a double-sided tooth stator assembly, an upper rotor 4 and a lower rotor 10;
[0020] The double-sided teeth stator assembly includes two metal-plastic composite stators; each metal-plastic composite stator includes a stator metal matrix 81 and a toothed plastic stator 82 connected as one, and the middle part of the metal-plastic composite stator is processed with a mounting hole; The two metal substrates 81 are butted together and a piezoelectric ceramic sheet 83 is connected between them;
[0021] A chamber is formed between the shell 2 and the base 7, and an upper rotor 4 and a lower rotor 10 connected...
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The present invention provides an ultrasonic motor having a two-sided teeth metal-plastic compound stator, and relates to an ultrasonic motor. The objective of the invention is to solve the problems that an ultrasonic motor with single-sided teeth plastic stator is small in output power and low in driving efficiency. The ultrasonic motor comprises housing and a pedestal which are connected together; the ultrasonic motor also comprises a two-sided teeth stator module, an upper rotor and a lower rotor; the two-sided teeth stator module comprises two metal-plastic compound stators; each metal-plastic compound stator comprises a stator metal matrix and a tooth-shaped plastic stator which are connected into one body, and the middle portion of each metal-plastic compound stator is provided with an installation hole; the two stator metal matrixes are abutted joint and a piezoelectric ceramic piece is glued between the two stator metal matrixes; and a cavity is internally provided with the upper rotor and the lower rotor which are connected together for linkage, the cavity is internally provided with the two-sided teeth stator module installed on the pedestal, and the wheel flange end surfaces of the upper rotor and the lower rotor are in contact with the teeth surfaces of the corresponding tooth-shaped plastic stators. The ultrasonic motor having a two-sided teeth metal-plastic compound stator is taken as a driver.
Description
technical field [0001] The invention relates to an ultrasonic motor and belongs to the field of piezoelectric drive. Background technique [0002] Ultrasonic motor is a new type of drive that uses the inverse piezoelectric effect of piezoelectric materials to convert electrical energy into mechanical energy. Its stator is usually composed of piezoelectric ceramics and metal elastomers. Stator elasticity is achieved by applying an AC voltage of ultrasonic frequency to piezoelectric ceramics. The excitation of mechanical vibration of the same frequency in the body, and then the particles in the driving area of the stator form a motion trajectory with a driving effect, and the output of the macroscopic motion of the rotor is realized through the friction coupling between the stator and the rotor. [0003] The publication number is CN201742324U, and the publication date is February 09, 2011. The title of the invention is "Rotary Traveling Wave Ultrasonic Motor". It does not us...
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Patent Timeline
Login to View More IPC IPC(8): H02N2/00C08L27/18C08L81/02C08K13/04C08K7/14C08K3/08C08K3/04C08K7/06
CPCC08L27/18C08L2203/20H02N2/005C08L81/02C08K7/06C08K2003/085C08K13/04C08K7/14C08K3/04
Inventor 刘硕李锦棒项四通殷安民
Owner NINGBO UNIV