Vibration damping and noise reducing mechanism for motor rotor

A motor rotor, vibration and noise reduction technology, applied in the direction of electromechanical devices, casings/covers/supports, electrical components, etc. problem, to achieve the effect of impact noise reduction
CN102035289AActive Publication Date: 2011-04-27DONGGUAN GUOLIANG MOTOR
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DONGGUAN GUOLIANG MOTOR
Publication Date
2011-04-27

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Abstract

The invention discloses a vibration damping and noise reducing mechanism for a motor rotor, which is suitable for small-power or micro-sensing motors. The mechanism comprises a rotor, a rotating shaft and vibration damping devices, wherein the rotor is fixed with the rotating shaft in a sleeve joint mode; the rotating shaft is pivoted on a bearing and one end of the rotating shaft passes through the bearing to form an output shaft; the vibration damping devices are respectively arranged between the rotor and the bearing symmetrically, and comprise a retainer ring and an elastic element; the retainer ring is sleeved on the rotating shaft; the elastic element is sleeved on the rotating shaft; one end of the elastic element is pressed against the retainer ring, and the other end of the elastic element is pressed against the end face of the bearing; and the retainer ring has stair-step structure and comprises a conflict part and a sleeve part, wherein the conflict part is resisted on the rotor, the sleeve part is sleeved on the elastic element. The vibration damping and noise reducing mechanism for the motor rotor can realize vibration damping in the radial direction, and can reduce noise generated by vibration.
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Description

technical field

[0001] The invention relates to a low-power or miniature induction motor, in particular to a motor rotor vibration reduction and noise reduction mechanism. Background technique

[0002] Motor, commonly known as "motor" (transliteration of motor), refers to an electromagnetic device that converts electrical energy into mechanical energy according to the law of electromagnetic induction. It generally includes stator windings, rotors, rotating shafts and brackets, and the stator is fixedly installed on the brackets, and the rotor is installed in the stator and pivotally connected to the brackets. The stator windings are formed by winding wires into coils in a certain way, and the coils are energized. The induced electromotive force acts as a swirl electric field, and then generates torque on the rotor coil to drive the rotor to rotate.

[0003] Generally, the rotor of the motor is directly socketed on the rotating shaft, and the rotating shaft is directly pivot...

Claims

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