Motor and winding method thereof

Abstract

The invention relates to a motor and a winding method. A plurality of rotor core grooves are formed in a rotor core of the motor, a plurality of commutator grooves are formed in a commutator, a plurality of commutator hooks are arranged on the side, facing a rotor core, of the commutator, an enameled wire is wound in the commutator hooks and the rotor core grooves, and the number of the commutatorhooks is 1.5 times that of the rotor core grooves. The winding method comprises the following steps: 1, hanging a first commutator hook on an enameled wire, and winding a certain number of turns in afirst rotor iron core groove; 2, continuously hanging a second commutator hook on the enameled wire, and winding half of the turns in the first step in the first rotor iron core groove; 3, winding half of the turns of the enameled wire in the first step in a second rotor iron core groove; 4, hanging a third commutator hook on the enameled wire, and winding a certain number of turns in the secondrotor iron core groove; and taking the four steps as a cycle for winding until the last commutator hook is hung. The motor and the method have the advantages that turn-to-turn short circuit of the enameled wire is avoided; and meanwhile, reversing sparks of the motor are also improved.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a motor and a winding method thereof. Background technique [0002] At present, the number of commutator hooks and the number of rotor slots in general series motors are in integer multiples, such as a 12-hook commutator with a 12-slot rotor, or a 24-hook commutator with a 12-slot rotor, or a 36-hook commutator with a 12-slot rotor. 12-slot rotor; with such a traditional structural design, its winding process is simple and easy to implement. [0003] However, when the space of the motor is limited in this winding process, the space does not change or changes little, but the number of commutator hooks needs to be increased. It is easy to cause inter-turn short circuit (inter-turn short circuit is the failure of inter-turn short circuit caused by electromagnetic frequency multiplication vibration between the same-phase coils of the designated sub-end winding, which leads to coil in...

AI Technical Summary

Problems solved by technology

[0002] At present, the number of commutator hooks and the number of rotor slots in general series motors are in integer multiples, such as a 12-hook commutator with a 12-slot rotor, or a 24-hook commutator with a 12-slot rotor, or a 36-hook commutator with a 12-slot rotor. 12-slot rotor; with such a traditional structural design, its winding process is simple and easy to implement

[0003] However, when the space of the motor is limited in this winding process, the space does not change or changes little, but the number of commutator hooks needs to be increased. It is easy to cause inter-turn short circuit (inter-turn short circuit is the failure of inter-turn short circuit caused by electromagnetic frequency multiplication vibration between the same-phase coils of the designated sub-end winding, which leads to coil insulation wear and tear), resulting in the performance and life of the motor not up to standard

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