Electrostatic motor based on electret film

Abstract

The invention relates to an electrostatic motor based on an electret film. The electrostatic motor comprises a stator, a rotor and a rotating shaft; a first electric brush and a second electric brush are arranged above the stator, and a first electret film and a second electret film with opposite positive and negative electrodes are adhered to the upper surface of the stator; and a commutator is arranged at the position of a middle shaft of the rotor and comprises two commutator copper sheets and an insulating part arranged between the two commutator copper sheets, semicircular metal electrodes corresponding to the commutator copper sheets in a one-to-one mode are arranged on the lower surface of the rotor, and the semicircular metal electrodes are connected to the commutator copper sheets corresponding to the semicircular metal electrodes through rectangular metal strips respectively. An air gap exists between each semicircular metal electrode and the stator; and the first brush and the second brush contact the commutator, and the rotating shaft passes through the center of the rotor. The electrostatic motor has no heating phenomenon when driving an external load to work, the power consumption of the motor is effectively reduced, motor miniaturization is facilitated, and the problems that an existing electrostatic motor is small in output torque and needs complex voltage regulation and control are solved.

Description

technical field [0001] The invention belongs to the technical field of electrostatic motors, and in particular relates to an electrostatic motor based on an electret film for converting electric energy into mechanical energy for driving a rotor to rotate. Background technique [0002] In the current industrial environment, the motors used are mainly electromagnetic motors, and their working principles are the same. After the rotor coil of the electromagnetic motor is fed with current in a constant magnetic field, the ampere force received by it serves as the driving force for the rotor to rotate. This type of motor will generate heat in the coil during operation, causing additional energy loss. This type of motor requires a constant external magnetic field during operation, which is not conducive to miniaturization and miniaturization. [0003] In 1742, Andrew Gordan invented the electric bell and electric elastic car by using the principle that charges of the same sign rep...

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an electrostatic motor based on an electret film to solve the problem that traditional motors are not conducive to miniaturization and miniaturization, have high requirements for driving voltage, are sensitive to environmental factors, are difficult to guarantee stability, and cannot Driving external loads to work, etc.

Images