CN2146504Y

CN2146504Y - Noise-lowering and vibration-isolating means for electric machine of washing machine

Info

Publication number: CN2146504Y
Application number: CN 93236143
Authority: CN
Inventors: 张启军
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-19
Filing date: 1993-01-19
Publication date: 1993-11-17
Anticipated expiration: 2003-01-19

Abstract

The utility model discloses a noise-lowering and vibration-isolating device for the electric machine of a washing machine, belonging to a noise control device, relating to the noise reduction and vibration isolation of the electric machine of a washing machine. The device is composed of an upper metal holder, a lower metal holder and a rubber body. The upper metal holder is connected with the electrical machine, the down metal holder is connected with a support frame, the rubber body is arranged between the upper metal holder and the lower metal holder, and the upper metal holder, the lower metal holder and the rubber body are tightly connected together via sulfuration. Aiming at noise problem widely existing in present washing machines, the noise-lowering and vibration-isolating device for the electric machine of a washing machine provides a method for correctly solving the noise reduction and vibration isolation of the electrical machine. The noise-lowering and vibration-isolating device for the electric machine of a washing machine not only can isolate the propagation of the solid-borne sound of the electrical machine, but also can prevent the electrical machine from tilting under the tension of a belt, and thus noise-lowering effect can be obtained on the premise that the washing machine works normally.

Description

Noise-lowering and vibration-isolating means for electric machine of washing machine

The utility model is a kind of oise damping means, relates to motor for washer noise reduction and vibration isolation.

At present, homemade washing machine noise level all be not up to state standards the regulation A level (being that acoustical power is less than 63aB(A)).Each washing machine manufacturer and some research institutions are devoted to the research of this respect always, consistently think that motor is the main noise source.In the past, people adopted rubber cushion blocks to replace plastic cushion, because the hardware features of rubber rigidity, with bolt and tightly, do not have tangible vibration insulation and noise reduction effect, and bolt is also not tight, motor produces very big inclination under the belt tension effect, influence the operate as normal of motor.Therefore the noise of motor problem never has fine solution, thereby has influenced the noise level of washing machine complete machine.

The noise problem that the utility model at present washing machine ubiquity, Rigidity Matching problem on the correct solution motor isolation mounting all directions has been proposed, can effectively isolate the sonic propagation of motor solid, can prevent that again motor produces under the belt tension, thereby under the prerequisite that guarantees the washing machine operate as normal, play the remarkable noise-reducing effect.

The utility model is made up of last metal frame (1), rubber bodies (2), following metal frame (3).Last metal frame (1) links with motor, and following metal frame (3) and support link.Rubber bodies (2) is arranged between metal frame (1) and the following metal frame (3), the three through the sulfuration close-coupled together, in last metal frame (1) is included in rubber bodies (2) and following metal frame (3).

Consider that from x, y, three directions of z bear shearing in y, z direction, rigidity is lower during the utility model design, anti-vibration performance is good, and this requires to the vibration isolation that is the master with motor shaft also is consistent; Bear compression and tension in the x direction, rigidity is higher, has certain anti-vibration performance, can prevent that again motor is subjected to the belt tension effect and produces excessive skew; The utility model is about the YOZ plane symmetry, and two rubber bodies of left and right sides tool certain size can make it have certain torsional rigidity around the y axle, to guarantee motor excessive inclination of unlikely generation under belt tension F effect.In addition, the utility model metal frame up and down links by rubber, possesses the secondary insulating properties naturally, needn't take insulation measures in addition.

Fig. 1 is the utility model schematic diagram.

Fig. 2 is the utility model left view.

Embodiment of the present utility model is as follows: go up metal frame (1) and following metal frame (3) and all curve " ㄇ " type by metal sheet, both are opposed, the centre is filled with rubber bodies (2), rubber bodies (2) likeness in form " 7 ", two rubber bodies (2) symmetry is placed, between its head and following metal frame (3) the footing limit gap delta is arranged, rubber bodies (2) firmly connects with last metal frame (1), following metal frame (3) through sulfuration.

Claims

1, motor for washer noise reduction isolation mounting is characterized in that this device by last metal frame (1), rubber bodies (2), metal frame (3) is formed down, and last metal frame (1) and motor link, and following metal frame (3) and support link.Rubber bodies (2) is arranged between metal frame (1) and the following metal frame (3), the three through the sulfuration close-coupled together, in last metal frame (1) is included in rubber bodies (2) and following metal frame (3).

2, motor for washer noise reduction isolation mounting according to claim 1, it is characterized in that metal frame (1) and following metal frame (3) all curve " ㄇ " type by metal sheet, both are opposed, the centre is filled with rubber bodies (2), rubber bodies (2) likeness in form " 7 ", two rubber bodies (2) symmetry is placed, and between its head and following metal frame (3) the footing limit gap delta is arranged.