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Magnetic circuit segmentation type series-parallel connection adjustable magnetic flux motor

A flux motor, split technology, applied in the direction of magnetic circuit, magnetic circuit shape/style/structure, synchronous motor with stationary armature and rotating magnet, etc.

Active Publication Date: 2021-05-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problems existing in the single use of series or parallel adjustable flux motors, and to provide a magnetic circuit split type series and parallel adjustable flux motors

Method used

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  • Magnetic circuit segmentation type series-parallel connection adjustable magnetic flux motor
  • Magnetic circuit segmentation type series-parallel connection adjustable magnetic flux motor
  • Magnetic circuit segmentation type series-parallel connection adjustable magnetic flux motor

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specific Embodiment approach 1

[0028] Specific implementation mode one: the following combination figure 1 Describe this embodiment. The magnetic circuit split type series-parallel adjustable flux motor in this embodiment includes a stator core 1, a stator winding 2, a rotor core 3, and a rotating shaft 4; the rotor core 3 is fixed on the rotating shaft 4 and is located on the stator Inside the core 1, the stator winding 2 is arranged on the stator core 1;

[0029] A V-shaped permanent magnet slot is arranged under each pole of the rotor core 3, and permanent magnets are arranged in the V-shaped permanent magnet slot, and are composed of a high coercive force section, a mixing section and a low coercive force section from the center side to the air gap side. Three-stage structure; an outer arc-shaped magnetic barrier 14 is arranged at the junction of the low-coercivity section and the mixing section, and an inner arc-shaped magnetic barrier 13 is arranged at the junction of the mixing section and the high-c...

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Abstract

The invention discloses a magnetic circuit segmentation type series-parallel connection adjustable magnetic flux motor, belongs to the technical field of wide speed regulation of permanent magnet motors, and aims to solve the problems existing when a series connection type adjustable magnetic flux motor or a parallel connection type adjustable magnetic flux motor is independently adopted. The motor comprises a stator core, a stator winding, a rotor core and a rotating shaft. The rotor core is fixed on the rotating shaft and located in the stator core, and the stator winding is arranged on the stator core; a V-shaped permanent magnet groove is formed below each pole of the rotor iron core, a permanent magnet is arranged in each V-shaped permanent magnet groove, and a three-section structure is formed by a high coercive force section, a mixing section and a low coercive force section in sequence from the circle center side to the air gap side; an outer-layer arc-shaped magnetic barrier is arranged at the junction of the low-coercivity section and the mixing section, and an inner-layer arc-shaped magnetic barrier is arranged at the junction of the mixing section and the high-coercivity section.

Description

technical field [0001] The invention relates to a magnetic circuit division type series-parallel adjustable magnetic flux motor rotor structure, which belongs to the technical field of wide speed regulation of permanent magnet motors. Background technique [0002] Permanent magnet synchronous motors have the advantages of high power density and high efficiency, and are often used as drive motors for new energy vehicles. However, this type of motor has disadvantages such as difficult adjustment of the permanent magnetic field, limited speed expansion range, and low efficiency when the field is weakened. In response to the above problems, scholars have proposed an adjustable flux motor with an adjustable permanent magnet field. This motor can change the magnetic state of the permanent magnet by applying d-axis charging and demagnetizing current pulses, so as to expand the speed range of the motor. the goal of. Unlike adjustable flux motors that only use a low-coercivity perma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K1/02H02K21/14
CPCH02K1/02H02K1/2773H02K21/14H02K2213/03
Inventor 王明峤郑萍佟诚德乔光远梁晓宇刘法亮
Owner HARBIN INST OF TECH
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