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Novel permanent magnet motor stator iron core

A permanent magnet motor and stator core technology, applied in magnetic circuits, electrical components, electromechanical devices, etc., can solve the problems of increasing the cost of motor manufacturing materials, reducing the efficiency of the motor, and shortening the safety life, so as to reduce the cost of motor materials and heat dissipation. The effect of improving the effect and improving the overall strength

Pending Publication Date: 2018-07-31
JIANGSU FULIHUA GENERAL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Causes motor efficiency to decrease, vibration noise to increase, and safety life to shorten
To solve the above problems, it is generally necessary to increase the width of the yoke of the stator punch, that is, the outer circle of the stator core, which will increase the material cost of the motor manufacturing

Method used

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  • Novel permanent magnet motor stator iron core
  • Novel permanent magnet motor stator iron core
  • Novel permanent magnet motor stator iron core

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Embodiment Construction

[0020] Attached below Figure 3-4 The technical scheme of the present invention will be further explained.

[0021] See attached Figure 3-4 As shown, the stator core of the above-mentioned new type of permanent magnet motor includes a molded body formed by laminating a plurality of stator punching pieces, and the integral non-magnetically conductive body is fastened to the outer circumferential surface of the molded body and the end faces of the yokes at both ends. Alloy cavity 1. The molded body includes a yoke part 3 and a tooth part. The integral non-magnetic alloy cavity 1 is an integral structure, and is integrally formed by fastening and rolling extrusion. The integral non-magnetic alloy cavity 1 includes one-to-one corresponding joining parts 2 on the end faces of the yokes at both ends of the molded body. The width of the coupling portion 2 is not greater than the width of the yoke 3. The coupling part 2 is coaxially distributed with the molded body, and the thickne...

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Abstract

The invention discloses a novel permanent magnet motor stator iron core. The novel permanent magnet motor stator iron core comprises a forming body formed by multiple stator punching sheets in a laminating manner, and an integrated non-magnetic-conducting alloy cavity fastened in the circumferential surface of the outer side part and the end planes of two end yoke parts of the forming body. The novel permanent magnet motor stator iron core, by setting the integrated non-magnetic-conducting alloy cavity fastened in the circumferential surface of the outer side part and the end planes of two endyoke parts of the forming body, changes the scattered state structure of the stator iron core into an integrated structure, so that the integral strength of the stator ion core is improved, and the stator ion core is not deformed easily, has the function of magnetism isolation and no magnetism leakage, the heat dissipation area of the stator ion core is enlarged, the heat dissipation capability is improved, the motor temperature rise is lowered, the motor efficiency and safety life are improved and prolonged, and the motor vibration and noise are lowered; and meanwhile, the stator iron core adopts an integral structure, so that the laminating coefficient, the heat dissipation effect and the efficiency are improved, the outer circle of the stator iron core is diminished and the motor material cost is lowered.

Description

Technical field [0001] The invention relates to a new type of stator core of a permanent magnet motor. Background technique [0002] The stator core of a conventional permanent magnet motor is generally formed by fixing multiple stator punching pieces 6 by clinching or welding. The stator punching piece 6 is provided with welds 4 and rivets 5, and the stator core is a loose structure. See details Attachment 1-2 shows that due to insufficient locking force, this kind of stator core is easy to deform, resulting in poor verticality and concentricity, and it is easy to deform during subsequent processing and transportation. Since the stator core of the permanent magnet motor is a magnetic material, it is easy to leak magnetic field, which will cause the motor's bearings to run in a radial magnetic field, which is prone to magnetization and electrical corrosion, and the motor power density will be reduced. Since the stator core is formed by stacking a plurality of stator punching she...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14
CPCH02K1/146H02K2213/03
Inventor 沈坤华
Owner JIANGSU FULIHUA GENERAL EQUIP
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