Damping pad and single-phase motor mounting structure using same

Abstract

The invention discloses a damping pad for weakening noises of a unit by tangential vibration of an isolation motor and a single-phase motor mounting structure using the damping pad. A pad body of the damping pad comprises a vibration isolating section, a first damping section and a second damping section, wherein the vibration isolating section is positioned at the middle of the pad body; the first damping section and the second damping section are respectively positioned at two ends of the vibration isolating section; the inside diameter of the vibration isolating section is greater than the inside diameters of two damping sections; an annular groove is formed in the outer circumference of the vibration isolating section; and the width of the annular groove is not greater than the length of the vibration isolating section. The single-phase motor mounting structure comprises connecting bolts and fasteners matched with the connecting bolts; the connecting bolts are used for fixing the damping pad and motor support legs with mounting holes to a mounting foundation; the mounting holes of the motor support legs are in clamped fit with the annular groove on the damping pad; through holes of the damping pad are in clearance fit with the connecting bolts; and in a fastening state, the damping pad has a movable clearance delta in the axial direction. According to the single-phase motor mounting structure, various vibrations of the single-phase motor can be effectively reduced and operation noises are reduced; and the single-phase motor mounting structure can be applied to various household electrical appliance products.

Description

technical field [0001] The invention relates to a vibration-damping installation structure, in particular to a vibration-damping installation structure of a motor for household electric appliances. Background technique [0002] At present, single-phase asynchronous motors are widely used in household electrical appliances. There are many researches on the vibration and noise of this type of motors. Due to the limitation of single-phase asynchronous motors, vibration and noise problems are extremely prone to occur during use, especially low-frequency noise is still a major problem in the industry. [0003] The vibration of a single-phase motor is mainly composed of axial vibration, radial vibration and tangential vibration. The axial and radial vibrations are relatively large, while the tangential vibration is relatively small. Tangential vibration is negligible for the motor itself, but it mainly transmits vibration through connected or fixed parts, thereby radiating second...

AI Technical Summary

Problems solved by technology

Tangential vibration is negligible for the motor itself, but it mainly transmits vibration through connected or fixed parts, thereby radiating secondary noise. Household appliances using asynchronous single-phase motors often use sheet metal thin The wall part is used as a motor support or a fixed plate, so the tangential vibration of the motor is easily transmitted to the sheet metal parts connected to it, and even causes the sheet metal to resonate, radiating noise several times stronger than that of the motor

[0004] At present, there are mainly two types of installation of single-phase asynchronous motors, horizontal installation and vertical installation. In order to ensure the stability of operation, hard links are often used in horizontal installation. Vibration reduction measures are generally used in vertical installation, but only in the Adding a rubber pad with a simple shape, the vibration damping effect is generally very unsatisfactory

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