Vibration noise suppression device for three-phase AC motor

Abstract

The invention provides a vibration noise suppression device for a three-phase AC motor, which comprises sound absorbing cotton and a ventilation cooling fan. A motor mounting plate has a rectangular plate structure; a rubber cushion and a mounting rubber strip are respectively mounted on the upper end surface and the lower end surface of the motor mounting plate; the three-phase AC motor is mounted on the top end surface of the motor mounting plate; a noise reduction casing has a circular arc-shaped hood structure; the noise reduction casing is mounted on the top end surface of the motor mounting plate; and the three-phase AC motor is located inside the noise reduction casing. When the three-phase AC motor works, the noise is absorbed through the sound absorbing cotton arranged on the inner wall of the noise reduction casing, the noise decibel of the three-phase AC motor is weakened, and influences of the noise of the three-phase AC motor on an external working environment are reduced;and as venting holes at two sides of the noise reduction casing are arranged, ventilation operation can be carried out inside the noise reduction casing through the venting holes, and the effects ofventilation of a three-phase AC motor mounting area in the noise reduction casing are ensured.

Description

technical field [0001] The invention belongs to the technical field of three-phase alternating current motors and noise reduction, and more particularly, particularly relates to a vibration and noise suppression device for three-phase alternating current motors. Background technique [0002] Three-phase AC motor is an AC motor driven by three-phase AC; three-phase motor refers to a rotating magnetic field when the three-phase stator windings of the motor (each with a difference of 120 degrees in electrical angle) are connected to three-phase AC. The rotating magnetic field cuts the rotor winding to generate electricity; it includes a three-phase synchronous motor and a three-phase asynchronous motor; the three-phase AC motor vibration and noise suppression device can refer to the patent CN207442616U, which mainly includes a second base plate, a base plate, a second muffler cotton and a plurality of a connecting piece; the second base plate is arranged at the inlet and outlet...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems, the present invention provides a vibration and noise suppression device for three-phase AC motors to solve the problem that the existing similar vibration and noise suppression devices for three-phase AC motors have poor damping effects on three-phase AC motors when they are in use. Phase AC motors tend to generate large vibration noise during operation, which affects the noise suppression effect of three-phase AC motors, and the external ventilation and heat dissipation effect of three-phase AC motors is poor. Three-phase AC motors are prone to overheating during use, which affects three-phase AC motors. The problem of motor life

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