Same-slot duplex-winding redundant permanent magnet synchronous motor

Abstract

The invention discloses a same-groove duplex-winding redundant permanent magnet synchronous motor, which relates to the field of permanent magnet synchronous motors, and comprises a casing and the like, a stator core with a groove is embedded into the casing to be fixed, a first winding and a second winding are wired and fixed along the groove of the stator core, and the second winding is wound on the periphery of the first winding; the insulating material is laid between the first winding and the second winding, so that the first winding and the second winding are relatively insulated; an outgoing line of the first winding is electrically connected with the first connector, and an outgoing line of the second winding is electrically connected with the second connector; the rotary transformer is arranged in the end cover, one end of the rotating shaft is connected with the rotary transformer, and the other end of the rotating shaft outwards penetrates out of the shell from one side, far away from the end cover, of the shell; the rotor yoke is fastened on the rotating shaft, and the periphery of the rotor yoke is sleeved with magnetic steel. The invention has the beneficial effects that the same-slot duplex windings are adopted, the high reliability of the motor under redundant backup is effectively improved under the condition that the motor has the advantage of high power density, and independent operation of a single motor can be realized.

Description

technical field [0001] The invention relates to the field of permanent magnet synchronous motors, in particular to a redundant permanent magnet synchronous motor with dual windings in the same slot. Background technique [0002] Aviation lifting sonar is the main anti-submarine detection equipment of naval anti-submarine helicopters, and the retractable system equipped on the helicopter is a key factor to ensure the safe deployment of sonar equipment for target detection and normal recovery after the mission is over. The decisive part of the detection task, so the requirements for the retractable system are very strict. As the power unit of the retractable system, the motor is a necessary condition for the retractable system to realize its functions. Therefore, it has strict requirements on the reliability of the motor. At the same time, as an aviation equipment, it also has strict requirements on the weight of the equipment, so it is used as the power of the retractable sys...

AI Technical Summary

Problems solved by technology

[0004] In some fields (such as aviation and aerospace), there are specific requirements for the overall weight, volume and reliability of the equipment. In order to achieve the overall performance index of the system, it must also meet the weight and volume requirements. At the same time, redundant equipment is required. Typical dual-motor independent Backup drive types are often not suitable for special environments

[0005] In order to meet the requirements of high power density and high reliability in special environments, people have designed a dual-motor form with the same winding and independent windings on the lower half of the motor, such as figure 1 As shown, this kind of dual motor has the characteristics of high power density, small size, and light weight, and can meet the high power density requirements in specific environments. However, in the case of damage to one side of the motor, the other side of the motor cannot work independently with high torque. , there will be a large jitter during the working process

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