CN202550816U

CN202550816U - Leg rubbing electric motor

Info

Publication number: CN202550816U
Application number: CN2012200377593U
Authority: CN
Inventors: 原伟波
Original assignee: Suzhou Great Yuan Electrical Appliances Co Ltd
Current assignee: Suzhou Great Yuan Electrical Appliances Co Ltd
Priority date: 2012-02-07
Filing date: 2012-02-07
Publication date: 2012-11-21
Anticipated expiration: 2022-02-07

Abstract

The utility model discloses a leg rubbing electric motor including an end cover, a bearing, a rotator shaft, a rotator, and a stator. The rotator shaft equipped with the rotator is arranged on the bearing and is concentric to the stator by passing through the inside of the stator, the two ends of the stator are provided with the buckling end cover, the two ends of one side of the end cover are provided with carbon brush holes, carbon brushes and springs are arranged in the carbon brush holes, the inner walls of the top parts of the carbon brush holes are provided with a plurality of recessed conical surfaces, the carbon brushes are arranged at the bottom parts of the carbon brush holes and abut against the conical surfaces via the springs, and the other ends of the spring are connected to copper caps. Because the inner walls of the carbon brush holes are the conical surfaces, the clamping problem of the springs is completely solved, and the carbon brushes are always well contacted with a commutator, thereby prolonging the service lifetime of the motor and improving the product quality.

Description

A kind of leg electric motor of rubbing

Technical field

The utility model relates to a kind of motor, particularly a kind of leg electric motor of rubbing.

Background technology

In the prior art, being used to massage the leg massager of rubbing of leg, mainly is to be made up of end cap, bearing, armature spindle, rotor, stator; The carbon brush pore structure at end cap two ends is a square tube type, and the top is a plane, when the spring in the carbon brush hole is pressed into; As long as carbon brush tilts a little, just possibly blocked by the plane, cause spring to block and cause the carbon brush loose contact; Can't find during the electrical equipment inspection in the early stage of the problem of loose contact, after the client buys product back home, can not occur unusual in the short time; But with after a period of time, spring very easily is stuck and can't carbon brush be continued to advance, and causes carbon brush and commutator loose contact; Cause the motor stall or the time stop when changeing, cause product failure.This kind structure causes life of product short, has wasted resource.

The utility model content

In order to overcome the defective that above-mentioned prior art exists, the utility model provides a kind of leg electric motor of rubbing,

To achieve these goals, the technical scheme of the utility model is following:

A kind of leg electric motor of rubbing comprises end cap, bearing, armature spindle, rotor, stator, and the armature spindle with rotor is installed on the bearing and to pass stator interior concentric with stator; The stator two ends are provided with the end cap of spiral-lock, and said side end cap two ends are provided with the carbon brush hole, are provided with carbon brush and spring in the carbon brush hole; Carbon brush hole top inner wall is provided with several depression taper seats; Said carbon brush places bottom, carbon brush hole and offsets through spring and said taper seat, and the spring other end is connected with the copper cap, and spring is fixed.

The gradient of the said carbon brush of the utility model hole internal conical surface is 0-20 °, can both guarantee that in this scope spring continues to offset with carbon brush, makes carbon brush continue to contact with commutator.

The beneficial effect of the utility model is, carbon brush hole inwall is made as taper seat, thoroughly solved spring and blocked problem, makes that carbon brush can continue to advance, and commutator contacts well all the time, has prolonged electrical machinery life, has improved product quality.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the utility model carbon brush pore structure enlarged drawing.

Among the figure, 1, armature spindle, 2, bearing, 3, end cap, 4, rotor, 5, end cap, 6, carbon brush, 7, the carbon brush hole, 8, taper seat, 9, stator, 10, taper seat, 11, spring, 12, the copper cap.

Embodiment:

For the creation characteristic, the technological means that make the utility model and reach purpose and be easy to understand and understand, further set forth the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1 and Fig. 2, a kind of leg electric motor of rubbing comprises end cap 3, end cap 5, bearing 2, armature spindle 1, rotor 4, stator 9; Armature spindle 1 with rotor 4 is installed on the bearing 2 and to pass stator 9 inner concentric with stator 9, and stator 9 two ends are provided with the end cap 3 and the end cap 5 of spiral-lock, and said end cap 5 two ends are provided with carbon brush hole 7; Be provided with carbon brush 6 and spring 11 in the carbon brush hole 7, carbon brush hole 7 top inner wall are provided with several depression taper seats 8, taper seat 10, and said carbon brush 6 places 7 bottoms, carbon brush hole and offsets through spring 11 and said taper seat; Spring 11 other ends are connected with copper cap 12, and copper cap 12 is 11 times press fit of spring, when spring 11 is compacted; Pressure is passed to carbon brush 6; Make carbon brush 6 continue to contact with commutator, because carbon brush hole 7 inwalls are provided with some taper seats, so spring 11 can not be stuck.The gradient of carbon brush hole 7 internal conical surfaces 10 is 0-20 °, makes the gradient of spring 11 in carbon brush hole 7 be controlled in 20 ° thus, can both guarantee that in 20 ° of scopes carbon brush 6 continues to contact with commutator.

More than show and described the advantage of basic principle, principal character and the utility model of the utility model.The technical staff of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; The utility model also has various changes and modifications under the prerequisite that does not break away from the utility model spirit and scope, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection range to be defined by appending claims and equivalent thereof.

Claims

1. rub the leg electric motor for one kind, comprise end cap, bearing, armature spindle, rotor, stator, the armature spindle with rotor is installed on the bearing and to pass stator interior concentric with stator; The stator two ends are provided with the end cap of spiral-lock, it is characterized in that, said side end cap two ends are provided with the carbon brush hole; Be provided with carbon brush and spring in the carbon brush hole; Carbon brush hole top inner wall is provided with several depression taper seats, and said carbon brush places bottom, carbon brush hole and offsets through spring and said taper seat, and the spring other end is connected with the copper cap.

2. a kind of leg electric motor of rubbing according to claim 1 is characterized in that the gradient of said carbon brush hole internal conical surface is 0-20 °.