Manufacturing method of motor

Abstract

Quality can be assured even when a motor is downsized and used at higher voltage by introducing an interphase insulation test after the steps of providing multiple phase coils in a core and an interphase insulator between individual phase coils. A method of producing a motor comprising the first step group of providing multiple phase coils in a core and an interphase insulation sheet between individual phase coils, and the second step group of sequentially carrying out the finish-forming step of forming a coil end to a specified size, the power line caulking step of individually caulking one end of each phase coil by a terminal to form a power line, the lacing step of tying a coil end with a yarn, the interphase insulation testing step of inspecting insulation between individual phase coils, the neutral line caulking step of integrally caulking the other end of each phase coil by a terminal to form a neutral line, the general insulation testing step of inspecting insulation between a core and each phase coil, and the coil fixing step of filling gaps between individual phase coils with a filler to fix the individual phase coils.

Description

technical field [0001] The present invention relates to a method of manufacturing a motor suitable for downsizing and increasing the voltage of the motor. Background technique [0002] Conventionally, as a manufacturing method of a motor, for example, there is a first process group including inserting a coil into each slot of an iron core to install a multi-phase coil, and installing an interphase insulator between each phase coil; and forming the coil end into a predetermined size. It is a technology of the second process group of fixing and conducting insulation tests of coils and cores of each phase. [0003] Among them, Patent Document 1 below discloses a first process group of assembling a first-phase coil into an iron core, inserting an interphase insulator thereafter, and assembling the next-phase coil. The second process group carried out after the first process group is generally as follows Figure 4 As shown, it includes fine forming process, riveting process, tig...

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned second process group, after the caulking process, only the insulation test process of checking the short circuit and withstand voltage of the iron core and the coils of each phase is performed, and the insulation between the coils of each phase is not checked (interphase insulation test)

In addition, in the above-mentioned second process group, in the caulking process, since the other end (neutral line point) of each phase coil is integrally caulked to the terminal and combined, no phase-to-phase insulation test is performed thereafter.

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