Rotating motor

Abstract

Due to the high thermal conductivity and simple structure of a rotating motor, the rotating motor can be insulated from a coil through an insertion groove when the iron core coil is wound. Insulation paper 3 is formed into a long and thin shape corresponding to the shape of the inner surface of the insertion groove 2 of a stator iron core 1. The insulation paper 3 is cut into a size slightly larger than the length size of the stator iron core 1 and is arranged in the insertion groove 2 in a matched mode. A pit 4a is formed in an insulation end plate 4. The end, arranged in the insertion groove 2 in the matched mode, of the insulation paper 3 is located on the pit 4a. In addition, under the state that the insulation paper 3 and the insulation end plate 4 are inserted, the coil is wound around the insertion groove 2. Thus, even when the length size of the stator iron core is changed, the insulation paper 3 and the insulation end plate 4 can be used together.

Description

technical field [0001] The present invention relates to a rotating electric machine in which the insulation structure of a stator or a rotor is improved. Background technique [0002] Conventionally, for example, for a rotating electric machine such as a servo motor or a brushless motor, the insulation structure between the iron core and the coil of the stator or rotor is inserted into each slot of the iron core according to the shape of the inner surface of the slot. Corresponding to the formed sheet of insulating paper, the coil is wound with the insulating paper inserted to ensure insulation between the coil and the iron core. [0003] On the other hand, as the insulating structure of the end face of the iron core, an insulating layer of synthetic resin can be formed on the end face of the iron core by powder coating or electrostatic coating. [0004] However, in the structure in which the coil is wound on the slot of the iron core provided with insulating paper, in orde...

AI Technical Summary

Problems solved by technology

[0004] However, in the structure in which the coil is wound on the slot of the iron core provided with insulating paper, in order to sufficiently ensure the insulation distance between the coil end exposed outside the iron core and the end surface of the iron core, the coil end must be set relatively short. High, increasing the amount of copper wire used as the coil end increases the cost, and increases the loss of copper, reduces the efficiency of the rotating electrical machine, and causes an increase in heat generation

In addition, the high setting of the coil end is a big obstacle to the thinning and weight reduction of the rotating electrical machine

[0005] On the other hand, in the case of powder coating or electrostatic coating on the end face of the iron core to form an insulating layer of synthetic resin, it is difficult to ensure that the insulating layer has a sufficient thickness, and pinholes are prone to occur, and overall management is relatively Difficulty will increase the cost

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