Motor and formed winding end fixing structure thereof

Abstract

The invention discloses a formed winding end fixing structure, which comprises a pressing ring installed in a shell and tightly pressing on the end face of a stator iron core, a collecting ring assembly installed in the shell and distributed in the outer side area of the end of a stator winding, a hard end hoop tightly hooped on the outer side wall of the stator winding in the circumferential direction, a plurality of fixed connecting plates connected between the pressing ring and the collecting ring assembly and distributed in the circumferential direction, and middle connecting pieces for connecting the fixed connecting plates and the hard end hoop into a whole. Thus, the pressing ring, the stator winding and the collecting ring assembly are connected into a whole, equivalently, the endstructure of the whole stator winding is installed on the end face of the stator iron core, and therefore the fixing stability and structural strength of the end of the stator winding can be improved,and compared with the prior art, the collecting ring assembly is distributed in the outer side area of the end of the stator winding, and the occupation of the axial space in the motor is effectivelyreduced. The invention also discloses a motor, and the motor has the above beneficial effects.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a fixing structure for forming winding ends. The invention also relates to an electric machine. Background technique [0002] With the promotion of high-efficiency and energy-saving motors, the design of motors is gradually developing in the direction of miniaturization, light weight, and low cost. [0003] The main components of the motor include stator, rotor, stator winding, rotor winding, collector ring, etc. Among them, the end of the motor winding is the weakest part of the mechanical strength of the motor winding, and the strengthening of the mechanical strength of the winding end makes the winding end stronger. Resists destructive forces caused by motor vibration, electromagnetic force, ventilation, etc. The mechanical reliability of the end of the stator winding and the prevention of damage caused by double-frequency electromagnetic vibration have become the most import...

AI Technical Summary

Problems solved by technology

However, due to the limitation of axial space, the collector ring cannot be arranged at the axial center of the winding end, and the winding end can not be paralleled according to the conventional method.

At the same time, in the prior art, the lead wires of the stator winding need to bear the weight of the slip ring, and there is inevitably a large vibration impact during the operation of the motor. If the strength of the end of the stator winding is insufficient, it is easy to damage the stator. The insulation performance of the lead wires of the winding is damaged, and even the lead wires are broken.

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