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Permanent magnet transverse segmentation dislocation type brushless double-rotor motor based on magnetic field modulation principle

A double-rotor motor and magnetic field modulation technology, which is applied in the direction of magnetic circuit shape/style/structure, magnetic circuit, electromechanical device, etc., can solve the problems of difficulty in ensuring dynamic balance of rotating windings, difficulty in synchronous control of dual rotors, and serious heating of windings, etc. Achieve the effect of avoiding the difficulty of synchronous control, saving a lot of space and improving the efficiency of the motor

Active Publication Date: 2022-01-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of existing counter-rotating motors for propulsion of underwater unmanned vehicles that require brush slip ring feed for the rotating windings, serious heating of the windings and difficulty in heat dissipation, difficulty in ensuring the dynamic balance of the rotating windings, and dual-motor drive mode. To solve problems such as difficulty in synchronous control of rotors, a brushless dual-rotor motor with permanent magnet lateral segmental dislocation based on the principle of magnetic field modulation is provided.

Method used

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  • Permanent magnet transverse segmentation dislocation type brushless double-rotor motor based on magnetic field modulation principle
  • Permanent magnet transverse segmentation dislocation type brushless double-rotor motor based on magnetic field modulation principle
  • Permanent magnet transverse segmentation dislocation type brushless double-rotor motor based on magnetic field modulation principle

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specific Embodiment approach 1

[0053] Specific implementation mode one: the following combination figure 1 , figure 2 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Describe this embodiment, the permanent magnet transverse segmental dislocation brushless dual-rotor motor based on the principle of magnetic field modulation described in this embodiment includes a casing 4, a ring winding stator 5, a permanent magnet rotor 7, and a permanent magnet rotor output shaft 1 , modulating ring rotor 6, modulating ring rotor output flange shaft 9-1, modulating ring rotor non-output flange shaft 9-2; permanent magnet rotor output shaft 1 is connected with forward-rotating propeller, modulating ring rotor output flange shaft 9- 1 connected with counter-rotating propellers;

[0054] The annular winding stator 5 is fixed on the inner circular surface of the casing 4, and the annular winding stator 5 is provided with a modulation ring rotor 6 and a permanent magnet rotor 7 sequentially from the outside to the insi...

specific Embodiment approach 2

[0115] Specific implementation mode two: the following combination image 3 , Figure 4 , Figure 9 and Figure 10 This embodiment is described. The difference between this embodiment and the first embodiment is that the permanent magnet rotor 7 includes n×(p m ×p PM ) permanent magnets 7-1, n×(p m ×p PM ) core raised unit 7-3 and permanent magnet rotor core 7-2; n×(p m ×p PM ) permanent magnets 7-1 and n×(p m ×p PM ) core protruding units 7-3 are uniformly staggered along the circumferential direction and distributed in sections along the axial direction on the permanent magnet rotor core 7-2; n×(p m ×p PM ) magnetization directions of the permanent magnets 7-1 are the same;

[0116] The magnetization direction of the permanent magnet 7-1 is radial magnetization; the core raised unit 7-3 and the permanent magnet rotor core 7-2 are silicon steel sheets or solid iron.

[0117] The advantage of this embodiment is that under the permanent magnetic field with the same ...

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Abstract

The invention discloses a permanent magnet transverse segmentation dislocation type brushless double-rotor motor based on a magnetic field modulation principle, belongs to the field of underwater unmanned vehicle propulsion motors, and aims to solve the problems of serious winding heating and difficult heat dissipation of an existing contra-rotating motor for underwater unmanned vehicle propulsion. The motor comprises an annular winding stator, a modulation ring rotor and a permanent magnet rotor, and the annular winding stator, the modulation ring rotor and the permanent magnet rotor are coaxially arranged from outside to inside in the radial direction; and the permanent magnet rotor is arranged in a segmented staggered mode, and permanent magnet magnetic fields which are evenly distributed along the circumference and distributed in a segmented staggered mode in the axial direction are formed. The modulation ring rotor modulates a permanent magnet magnetic field which is uniformly distributed along the circumference and is distributed in a segmented and staggered manner along the axial direction into a stator winding magnetic field which is distributed along the axial direction, and electromagnetic torques borne by the permanent magnet rotor and the modulation ring rotor are equal in real-time magnitude and opposite in direction; and an output shaft of the permanent magnet rotor is connected with a forward propeller of the contra-rotating propellers, and an output shaft of the modulation ring rotor is connected with a reverse propeller of the contra-rotating propellers.

Description

technical field [0001] The invention relates to a motor body structure and belongs to the field of propulsion motors for underwater unmanned vehicles. Background technique [0002] Marine equipment is an important equipment for underwater reconnaissance and surveillance, intelligence collection, and underwater operations. The innovative development of underwater unmanned aerial vehicles has great strategic and economic significance for my country's protection of maritime sovereignty and development of marine resources. [0003] The propulsion system of underwater unmanned vehicles generally includes two kinds of propellers: single propeller and counter-rotating propeller. Among them, compared with the single propeller, the counter-rotating propeller technology can not only overcome the shortage of the rolling moment generated when the single propeller rotates, but also absorb the rotational kinetic energy in the wake of the front propeller and reduce the energy loss of the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02H02K1/16H02K1/276B63H23/24
CPCH02K16/02H02K1/16H02K1/276B63H23/24H02K2213/03H02K2201/06Y02T10/64
Inventor 郑萍王于涛白金刚刘家琦刘国鹏梁晓宇
Owner HARBIN INST OF TECH