Spliced iron core and motor

Abstract

The invention relates to a spliced iron core, and belongs to the field of motor devices. The spliced iron core comprises a base body iron core, a winding and a slot cap iron core, wherein the base body iron core is in the shape of an annular column, the outer wall of the base body iron core is provided with a plurality of slots, and convex teeth are formed between every two adjacent slots; the winding is wound on the convex teeth; and the slot cap iron core is selectively arranged at the outer ends of the convex teeth. According to the invention, the base body iron core is provided with the open slot structure to facilitate the installation of the winding; and meanwhile, the slot cap iron core is arranged to convert the open slot structure into a semi-closed slot structure, so that the requirements of the motor are met.

Description

technical field [0001] The invention relates to a block type iron core and a motor, belonging to the field of motor components. Background technique [0002] There are semi-closed slots and open slots commonly used in motor stator slots. Among them, the semi-closed slot shape is generally used in motors with power below 100kW and voltage below 500V. Since these motors usually use inlaid windings wound from round wires, the use of semi-closed slots reduces core surface losses and tooth pulsation losses. Motors with high voltage requirements generally use insulation and wrapped rectangular windings. In order to ensure that the wires are embedded, the motor must use open slots. Open slots increase the harmonic components of the magnetic guide teeth in the air gap magnetic field, and the slot leakage reactance will also increase. big. [0003] In recent years, with the rapid development of new energy vehicles, the requirements for the driving motor indicators on the vehicle a...

AI Technical Summary

Problems solved by technology

Motors with high voltage requirements generally use insulation and wrapped rectangular windings. In order to ensure that the wires are embedded, the motor must use open slots. Open slots increase the harmonic components of the magnetic guide teeth in the air gap magnetic field, and the slot leakage reactance will also increase. Big

[0003] In recent years, with the rapid development of new energy vehicles, the requirements for the driving motor indicators on the vehicle are getting higher and higher. The scattered round wires used in the past on the motor can no longer meet the requirements of the slot fill rate. The new energy vehicle motor uses rectangular windings. become one of the development trends

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