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Duplex stator structure for permanent-magnet flux-switching motor

A technology of permanent magnet switch and motor stator, which is applied in the direction of magnetic circuit shape/style/structure, magnetic circuit static parts, etc. To avoid problems such as magnetic flux leakage to the end, to achieve the effect of high magnetic efficiency utilization, strong anti-electromagnetic interference and electromagnetic compatibility, and low magnetic flux leakage at the axial end

Inactive Publication Date: 2012-10-31
LINQUAN AEROSPACE MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the permanent magnet switch flux linkage motor stators in the prior art generally have the problem of serious flux leakage at the axial end and low utilization rate of the permanent magnets.
Therefore the use effect of existing permanent magnet switch flux linkage motor is still not ideal enough

Method used

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  • Duplex stator structure for permanent-magnet flux-switching motor
  • Duplex stator structure for permanent-magnet flux-switching motor
  • Duplex stator structure for permanent-magnet flux-switching motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Embodiment 1 of the present invention: when making the permanent magnet switch flux linkage motor, the compound permanent magnet switch flux linkage motor stator structure of the present invention is used to make it, and its structural diagram is as follows Figure 1 ~ Figure 4 As shown, the stator structure of the compound permanent magnet switch flux linkage motor includes a stator core 1 provided with a wire groove. During production, the stator core 1 is made into a cylindrical shape composed of at least four U-shaped stator cores 1. , a U-shaped embedding slot is made on each U-shaped stator core 1, and the stator core 1 can use existing solid materials with good magnetic permeability to make a solid structure or use existing magnetic permeability A good sheet material is stamped and formed into a lamination structure; a first permanent magnet block 2 of a square structure is arranged between every two stator cores 1 of a U-shaped structure combined into a cylindric...

Embodiment 2

[0020] Embodiment 2: When implementing the compound permanent magnet switch flux linkage motor stator structure of the present invention, the ends of two adjacent second permanent magnet blocks 3 can also be pushed against each other, and the first permanent magnet block 2 two The ends of the ends are respectively supported on the inner sides of the second permanent magnet block 3 at its two ends (such as Figure 6 shown); the rest of the production methods are the same as in Example 1.

Embodiment 3

[0021] Embodiment 3: When implementing the compound permanent magnet switch flux linkage motor stator structure of the present invention, a gap can also be left between the ends of two adjacent second permanent magnet blocks 3, and the first permanent magnet block 2 The ends of the two ends are respectively facing the gap between the ends of the two adjacent second permanent magnet blocks 3 at the two ends (such as Figure 7 shown); the rest of the production methods are the same as in Example 1.

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Abstract

The invention discloses a duplex stator structure for a permanent-magnet flux-switching motor, which comprises stator cores provided with coil inserting grooves, wherein the at least 4 stator cores adopting U-shaped structures are combined into a cylinder. Each stator core in a U-shaped structure is provided with a U-shaped coil inserting groove; a first permanent magnet block adopting a square structure is arranged between every two stator cores adopting the U-shaped structures, which are combined into the cylinder; a second permanent-magnet block provided with a U-shaped groove is pasted to each of the two axial end faces of each stator core; the shapes of the end faces of the second permanent-magnet blocks are identical to the shapes of the end faces of the stator cores; the polarities of magnetic poles on contact surfaces of the two first permanent-magnet blocks and the two second permanent-magnet blocks that are in contact with the same stator core are the same; magnetic conducting end plates adopting tooth socket structures are pasted outside the second permanent-magnet blocks. The duplex stator structure has the advantages that the axial brow leakage is low, the utilization ratio of magnetic efficiency of the permanent magnets is high, and the power density output is great.

Description

technical field [0001] The invention relates to a stator structure of a compound permanent magnet switch flux linkage motor, which belongs to the technical field of permanent magnet switch flux linkage motor stator production. Background technique [0002] The permanent magnet switched flux linkage motor has the advantages of high efficiency and high power density, and has received more and more attention recently. However, the stator of the permanent magnet switch flux linkage motor in the prior art generally has the problem of serious flux leakage at the axial end and low utilization rate of the permanent magnets. Therefore the use effect of existing permanent magnet switch flux linkage motor is still not ideal enough. Contents of the invention [0003] The purpose of the present invention is to provide a compound permanent magnet switch flux linkage motor stator structure with compact structure, low flux leakage at the axial end, high magnetic efficiency utilization ra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/16H02K1/17
Inventor 沈建新王灿飞
Owner LINQUAN AEROSPACE MOTOR CO LTD