Rotor assembly and winding process thereof

Abstract

The invention relates to a rotor assembly, which comprises a rotating shaft, an iron core, a commutator and a rotor winding. The commutator and the iron core are arranged on the rotating shaft; the commutator comprises a plurality of commutator segments arranged around the circumference of the rotating shaft, and one end, close to the iron core, of each commutator segment is connected with a hook;the iron core is provided with a plurality of rotor grooves arranged around the circumference of the rotating shaft, and the rotor grooves are in one-to-one correspondence with the commutator segments; one end of the rotor winding is wound in the rotor groove, and the other end is hung on the hook; the rotor winding comprises an outgoing line led out from the hook to the rotor groove and a returnline led out from the rotor groove to the hook, and the outgoing line and the return line are tightly attached to and wound on the rotating shaft; according to the invention, the rotor winding is wound on the rotating shaft, and the outgoing line and the return line are respectively arranged in parallel, so that the outgoing line and the return line are crossed and clung to the rotating shaft, the crossing angle of the outgoing line and the return line is extremely small, the stress between the connecting lines is transferred to the rotating shaft, and the rotor winding cannot be snapped offdue to stress crossing; and the rotor winding cannot be abraded due to high-frequency vibration.

Description

technical field [0001] The invention relates to the technical field of motor rotors, in particular to a rotor assembly and a winding process thereof. Background technique [0002] The rotor assembly of the existing window regulator motor for trucks is mainly composed of a rotating shaft, a rotor iron core, a rotor winding and a commutator. The rotor core and the commutator are arranged on the rotating shaft. The above-mentioned commutator is a hook-shaped commutator, which means that one end of the commutator segment of the commutator is provided with a hook. When the hook-shaped commutator winds the rotor winding, the wire ends of the winding are wound on the hooks of the commutator segments of the commutator. [0003] figure 1 It is a structural schematic diagram of the existing rotor assembly. The use of the existing winding method will cause the rotor winding to generate stress crossing in the suspended part, without any support, and the tension of the winding cannot ...

AI Technical Summary

Problems solved by technology

[0003] figure 1 It is a schematic diagram of the structure of the existing rotor assembly. The use of the existing winding method will cause the rotor winding to generate stress crossing in the suspended part. Without any support, the tension of the winding cannot be removed.

Therefore, the high-frequency vibration may wear the paint and cause a short circuit, or the rotor winding may be strangled due to the mutual stress of the cross wires.

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