Electrothermal magnetic isolation multiphase fault-tolerant motor

Abstract

The invention provides an electrothermal magnetic isolation multiphase fault-tolerant motor, which comprises a stator, a rotor, a shell, an end cover, a rotary transformer and a bearing, wherein the stator comprises a motor shell and a stator iron core, the stator iron core comprises five modules in total, a phase winding is wound on each module, each module comprises two large teeth and two smallteeth, the winding coil is wound on the two large teeth, the two small teeth are used for magnetic isolation, the outer sides of the two small teeth are coated with heat insulation glue, after the stator modules are assembled, weak thermal coupling of each phase winding is realized, the heat of each phase winding is dissipated to the shell body, the motor rotor comprises a motor shaft and the like, the motor bearings are installed on the two sides of the motor shaft, the rotary transformer is coaxially installed at one end of the motor shaft to detect the position of the motor rotor, the stator iron core is installed inside the motor shell, the end cover of the motor is divided into a front end cover and a rear end cover, the front end cover is in interference fit with one end of the motor shell in the radial direction, the front end cover is axially limited through a spigot end face on the inner wall of the motor shell, and the rear end cover is installed at the other end of the shell.

Description

technical field [0001] The invention relates to an electrothermal and magnetic isolation multiphase fault-tolerant motor, which belongs to the technical field of liquid carrier rocket electrician and motor. Background technique [0002] The integrated starting / generating system integrates the functions of starting and generating, and has the characteristics of high energy utilization efficiency, high integration, and high specific power. In systems such as aircraft and automobiles, due to the operating characteristics of the engine and the power supply requirements of the entire system, both the starting system and the power generation system need to exist in the system. In the past, the starting system and the power generation system were independent of each other. The starting part usually uses cold air, hydraulic or electric starting methods to drive the engine to work, while the power generation part uses the engine to drive the generator to generate electricity, and the...

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Problems solved by technology

The above-mentioned patents do not consider the influence of the fault phase heat on other phases and permanent magnets under short-circuit faults, the torque density of the motor is small, and the Halbach array has a large demand for magnetic materials, and the manufacturing process is complicated

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