Soft magnetic composite material stator motor and cooling method thereof

Abstract

The invention discloses a soft magnetic composite material stator motor and a cooling method thereof. The motor comprises a rotor iron core, a stator iron core, a permanent magnet and an armature winding; the stator iron core is formed by mould pressing of a soft magnetic composite material, and the armature winding is arranged on the stator iron core; a permanent magnet is arranged on the side surface, opposite to the stator iron core, of the rotor iron core; and a circle of air gap is formed between the permanent magnet and the stator iron core; a circle of cooling groove is formed in the motor, and the cooling groove is located in the stator iron core. The method comprises the steps that a cooling guide pipe is laid in the cooling groove; and a cooling medium is input from one end of the cooling guide pipe, flows along the cooling guide pipe and is output from the other end of the cooling guide pipe to take away heat generated on the stator iron core, thereby achieving the purpose of cooling the motor. The stator iron core module is formed by pressing the soft magnetic composite material with high plasticity, and the stator iron core is slotted, so that the stator iron core module can be used in a motor with a complex structure, can be produced on a large scale, and does not influence the flow of magnetic flux in the motor.

Description

technical field [0001] The invention relates to the technical field of soft magnetic composite material motors, in particular to a soft magnetic composite material stator motor and a cooling method thereof. Background technique [0002] With the development of new magnetic materials and the renewal of motor structures, motor manufacturing is no longer limited to using silicon steel sheets to make motor cores, but in some motor cores with complex structures, especially involving three-dimensional magnetic circuits, silicon steel sheets are no longer sufficient for motors. design needs. Soft magnetic composite materials are more and more used in motor manufacturing by taking advantage of their isotropic characteristics and the advantages that they can be pressed into various complex structures through abrasive tools. The application of new materials also provides new ideas for cooling the motor. In the traditional motor cooling methods, the motor is cooled indirectly by inst...

AI Technical Summary

Problems solved by technology

The traditional cooling method will be limited by the structure of the motor. A through hole is reserved in the axial direction, and the cooling pipe must enter and protrude from the axial direction. In the axial motor, the air gap between the stator and the rotor is small, which is not suitable for the pipe. installation can cause many problems

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