Magnetic pole iron core

Abstract

The invention relates to a magnetic induction component of a motor, in particular to a magnetic pole iron core. The magnetic pole iron core solves the problems that an existing magnetic pole iron core structure causes pole shoe overlying difficulty, is high in manufacturing cost and low in efficiency, deforms easily and is damaged easily when used for winding a magnetic pole coil. The magnetic pole iron core comprises a magnetic pole body, a pole shoe formed by stacking pole shoe punching pieces is welded to the magnetic pole body, positioning protruded pieces extend on the edges of the pole shoe punching pieces contacted with the magnetic pole body, a lambdoidal guide groove is arranged on the contact surface between the magnetic pole body and the pole shoe along the length direction, an included angle between the inclined edge of the guide groove and the horizontal central axis of the surface where the inclined edge is located is delta, and the guide groove and the positioning protruded pieces are in clearance fit with each other. According to the magnetic induction component, structures and the number of tools are simplified, the tool cost is lowered, the manufacturing cost is lowered, overlying operation of a magnetic pole is convenient, production efficiency is high, and product quality is good.

Description

technical field [0001] The invention relates to a magnetic induction part of a motor, in particular to a magnetic pole core. Background technique [0002] The pole core is an important component in the motor. The pole core is generally formed by stacking and riveting steel plates. The cylindrical part of the pole core is called the pole body. The pole body is welded with a pole shoe made of pole shoe punching pieces. The existing pole shoe punching structure is as follows: Figure 8 As shown, the pole shoe stampings are designed with welding grooves on both sides and the upper flat edge, and the pole shoe stampings are stacked together and welded in the welding grooves to form pole shoes. In the electromagnetic design, in order to weaken the tooth harmonic potential, when the pole piece is fixed on the pole body, it should be inclined at a certain angle δ relative to the axis of the pole core (the angle δ is determined according to the specific parameters of the motor). The ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a magnetic pole core in order to solve the problems of difficulty in stacking pole shoes, high manufacturing cost, low efficiency, easy deformation, and easy damage of magnetic pole coils caused by the existing magnetic pole core structure.

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