Motor with novel reversing structure

Abstract

The invention provides a motor with a novel reversing structure. The motor comprises a stator, a rotor, a commutator and a brush. The disc-shaped commutator is mounted on the rotor, the outer end surface of the commutator is in contact with one end of the brush, the other end of the brush extends along the non-radial direction of the commutator, and the brush is connected to a power source. By adopting the technical scheme, the contact area between the brush and the commutator is increased, the conductive cross-sectional area which the electric energy can flow is larger, the reversing reliability is improved, the noise during running of the motor is reduced, the brush and the commutator are in close contact under the action of the brush, and the reversing reliability is further improved. In addition, components inside the motor casing are more easily arranged, the brush is connected to the power source through a wire extending from the end surface of the motor casing. For a motor manufacturer, the motor is more convenient to assemble, an armature line inserting and welding process is also relatively simple, and the cost for the motor manufacturing enterprise is reduced.

Description

technical field [0001] The invention belongs to the technical field of motors, in particular to a motor with a novel commutation structure. Background technique [0002] The motor is an energy conversion device that converts electrical energy into mechanical energy for rotor rotation according to the principle of electromagnetic induction. It is currently the most widely used power device in industrial production and life activities. In the prior art, the electrical energy of the motor is mainly through the electric The brush is connected to the power supply, through the contact between the brush and the commutator, and the electrical connection between the brush and the commutator is frequently switched between on and off, and the electric energy is sent into the armature, so that the armature is constantly changing The changing magnetic field interacts with the stator, which drives the rotor to rotate and drive the load. Such as figure 1 As shown, the internal structure ...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the internal structure of the existing motor is generally a coaxial rotary radial contact commutation, that is, the central axis of the brush coincides with the radial direction of the commutator. With this type of structure, the brush and the commutator The contact area between them is small, when they are connected, the conductivity reliability is poor, and when the passing current is large, due to the small contact area, it is easy to generate sparks, and the noise of the motor is large when it is running, and the phone wears quickly, which affects the The service life of the motor, and for the motor manufacturer, the embedding and welding process of the armature is relatively complicated, which increases the manufacturing cost

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