Electric-field-type driver

Abstract

The invention relates to a driving device capable of converting electric energy into mechanical energy for output, in particular to an electric-field-type driver, which comprises a driving circuit and an actuator. The actuator comprises a plurality of piezoelectric driving pieces (5). The electric-field-type driver is characterized in that rotating shafts (3) are arranged at one ends of the piezoelectric driving pieces (5), the rotating shafts are respectively installed and connected onto a connecting plate (11) or a connecting plate (24b), the other ends of the piezoelectric driving pieces (5) are fixedly connected with a connecting plate (9) or rotating shafts (25) are arranged at the other ends of the piezoelectric driving pieces (5), the rotating shafts (25) are installed and connected onto a connecting plate (24a), buffer resistors (8) and necessary electrode leads (7 and 10) are arranged on the connecting plate (9) and the connecting plate (24a), and a connecting block (23) is fixedly connected with every two piezoelectric driving pieces (5). The output and the resetting of the piezoelectric driving pieces (5) are controlled by charging and discharging piezoelectric ceramic pieces through the driving circuit, the goal of realizing large overall output and large overall displacement of the driver is achieved, the energy saving and environmental protection effects of the electric-field-type driver are remarkable and the performance is excellent.

Description

technical field [0001] The invention provides an electric field driver, which belongs to the field of driving devices for converting electric energy into mechanical energy and can widely replace various electromagnetic drivers and be used in various occasions where electric energy needs to be converted into mechanical energy for output. Background technique [0002] At present, the commonly used drivers are mainly electromagnetic drivers, which generate a magnetic field by passing current through the electromagnetic coil, and then attract the armature to output power and displacement. Electromagnetic noise and audio noise have a limited lifespan; stacked piezoelectric actuators based on the longitudinal effect of the inverse piezoelectric effect are very expensive and are currently only used in high-precision cutting-edge equipment with very high requirements; The transverse effect of the piezoelectric bimorph actuator is energy-saving and has a large output displacement, bu...

AI Technical Summary

Problems solved by technology

[0002] At present, the commonly used drivers are mainly electromagnetic drivers, which generate a magnetic field by passing current through the electromagnetic coil, and then attract the armature to output power and displacement. Electromagnetic noise and audio noise have a limited lifespan; stacked piezoelectric actuators based on the longitudinal effect of the inverse piezoelectric effect are very expensive and are currently only used in high-precision cutting-edge equipment with very high requirements; The transverse effect of the piezoelectric bimorph actuator is energy-saving and has a large output displacement, but the output force is too small to be widely used.

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