Damping high-speed single phase brushless motor

Abstract

The invention discloses a damping high-speed single phase brushless motor, comprising an insulated wire frame, a stator coil and a rotor, wherein the stator coil is fixed in the insulated wire frame,four tooth parts are arranged in the stator coil, the end part of each tooth part extends one arc-shaped pole shoe, and each arc-shaped pole shoe has two ends, namely a thick end and a thin end, and automatically identifies and adapts to a rotation direction of a magnetic field, so as to determine the rotation direction; a rotor damping device is fixed at an upper frame and a lower frame of the insulated wire frame respectively, the two ends of the rotor are connected with the rotor damping devices in a penetrating way, and vibration of the motor rotating at a high speed on mounted equipment is reduced. The motor disclosed by the invention has the advantages that the upper frame, the lower frame and the stator coil are mounted in a three-in-one sheathing way, mounting speed is high and location is accurate.

Description

technical field [0001] The invention relates to a motor, in particular to a high-speed single-phase brushless motor with vibration reduction. Background technique [0002] 1. The stator layout hole of the existing motor is circular with equal radius, forming a uniform and symmetrical air gap structure with the rotor, but the motor is easy to form a dead point during the starting process. During the starting process, the controller gradually increases the current and voltage to make the motor Normal startup, if the magnetic rotor just stops at the position where the magnetic force on both sides is equal, the current cannot cross the zero point, the motor cannot start, and a dead point occurs; the traditional single-phase brushless motor has a large air-gap flux density harmonic content at high speed. The induced electromotive force of the stator coil is distorted, the harmonic current is large, the motor is easy to vibrate, and the operating efficiency is low. 2. The vibratio...

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Problems solved by technology

[0002] 1. The stator layout hole of the existing motor is circular with equal radius, forming a uniform and symmetrical air gap structure with the rotor, but the motor is easy to form a dead point during the starting process. During the starting process, the controller gradually increases the current and voltage to make the motor Normal startup, if the magnetic rotor just stops at the position where the magnetic force on both sides is equal, the current cannot cross the zero point, the motor cannot start, and a dead point occurs; the traditional single-phase brushless motor has a large air-gap flux density harmonic content at high speed. The induced electromotive force of the stator coil is distorted, the harmonic current is large, the motor is easy to vibrate, and the operating efficiency is low. 2. The vibration of the high-speed rotating motor is large, resulting in large synchronous vibration of the installed object, which affects the use. If it is installed on small appliances, Its product quality is light and the vibration is greater, which affects normal use; 3. At present, the motor does not have its own fan, and the temperature rise of the motor is high, which affects the rotation speed and torque, and affects the service life of the motor.

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