Ceramic PCB disc type brushless excitation motor

Abstract

The invention discloses a ceramic PCB disc type brushless excitation motor which comprises a front cover, a first bearing, a first magnetic steel, a first permanent magnet, a ceramic PCB winding, a second permanent magnet, second magnetic steel, a second bearing and a back cover which are sequentially arranged on a central shaft. The used winding is a ceramic PCB winding. The ceramic PCB winding comprises at least one layer of ceramic PCB substrate and windings fixed on the ceramic PCB substrate. The windings are distributed on the ceramic PCB substrate in a circumferential array with respectto the central shaft hole. The technical scheme can improve the overall performance of the motor and has higher power, higher speed rate and longer service life and can also obviously reduce the thickness of the motor.

Description

technical field [0001] The invention relates to the field of motor manufacturing, in particular to a ceramic PCB disc-type brushless excitation motor. Background technique [0002] Brushless excitation motor is a common type of motor. Its armature winding (silicon steel sheet iron core) is located in the stator core slot. Due to the cogging effect, there will be torque ripple when the motor rotates, which will reduce the dynamic response speed and increase the vibration noise. , at the same time, the silicon steel sheet core will consume a certain amount of energy; and it adopts the structure of the radial magnetic field, and the overall thickness is relatively large, which cannot meet the thin installation requirements. [0003] The publication number is CN209250362U, a patent called a PCB disc brushless DC motor uses a pcb board as a winding, but it uses the substrate material used in traditional printed circuit boards, such as FR4 (A epoxy-glass fiber board) , such a sub...

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Problems solved by technology

To solve the signal transmission and power supply in high temperature environment, the above solution cannot be applied to the motor

[0005] The publication number is CN2807422Y, a patent named low-temperature co-fired ceramic winding high-frequency power transformer. The metal conductor paste and ceramic material are laminated in multiple layers and formed by low-temperature co-firing with ceramics as the insulating skeleton, including internal metal winding connections. The overall composite ceramic winding module realizes insulation treatment, improves heat dissipation, reduces volume, etc., and solves the problem of heat dissipation and how to superimpose multi-layer windings. The above solutions cannot be applied to motors

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