Yoke-free stator assembly and axial permanent magnet hub type motor

A yoke stator and yoke stator technology are applied in the field of non-magnetic yoke stator components and axial permanent magnet in-wheel motors, which can solve the problems of low conversion rate, large magnetic loss, increase in size and weight of in-wheel motors, etc., and achieve conversion rate High, low loss, reducing the effect of magnetic radial diffusion

Pending Publication Date: 2021-03-16
嘉兴弈承机电科技有限公司
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Problems solved by technology

[0004] The above scheme adopts the dual-rotor stator segmented yoke-free axial flux topology. Although the hub motor has no yoke, it increases the volume and size of the hub motor to a certain extent due to the planetary reducer and other components inside it. At the same time, the solution still exists: the conversion rate of magnetic force into power is low, and the problem of large magnetic loss

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  • Yoke-free stator assembly and axial permanent magnet hub type motor
  • Yoke-free stator assembly and axial permanent magnet hub type motor
  • Yoke-free stator assembly and axial permanent magnet hub type motor

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[0029] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0030] like Figure 1-3As shown, the present yokeless stator assembly includes a stator body 1 having a stator coil winding 2 and a stator iron core assembly 3. The stator coil winding 2 is a ring-shaped structure formed by a number of stator coil groups 21 distributed in the circumferential direction. The stator iron The core assembly 3 has a plurality of magnetic conductors 31 which are distributed circumferentially with the center of the stator coil winding 2 as the center and are respectively embedded between two adjacent stator coil groups 21. Preferably, the two adjacent stators here are A winding gap 22 is formed between the middle of the coil group 21 , the winding gap 22 is evenly distributed in the circumferential direction, and the magnetic conductors 31 are all sheet-shaped and are respectively embedded in the winding gap 22 .

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Abstract

The invention relates to a yoke-free stator assembly and an axial permanent magnet hub type motor, and aims to solve the technical problem that an existing stator is large in weight and the like. Theyoke-free stator assembly comprises a stator body provided with a stator coil winding and a stator iron core assembly, wherein the stator coil winding is of an annular structure formed by circumferentially distributing a plurality of stator coil assemblies, the stator iron core assembly is provided with a plurality of magnetizers, the stator coil winding and the stator iron core assembly are connected in a solidified mode through an insulating magnetism-insulating thermosetting material so as to form a stator fixing bracket between the stator coil winding and the stator iron core assembly, andan inner magnetism-insulating structure and/or an outer magnetism-insulating structure are/is arranged on the stator fixing bracket. According to the invention, a stator magnet yoke structure is canceled, the magnetic resistance is small, the volume and weight of the stator are reduced, and the inner and outer magnetic insulation structures can reduce the radial diffusion of magnetic force, so that the conversion rate of converting magnetic field force into power is high and the loss is low; and the hub motor is high in stability, and the shafting size of the hub motor is reduced through theflattening design.

Description

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Claims

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Application Information

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Owner 嘉兴弈承机电科技有限公司
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