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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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0030] Such as Figure 1-3As shown, the yokeless stator assembly includes a stator body 1 with a stator coil winding 2 and a stator core assembly 3. The stator coil winding 2 is in a ring structure formed by a number of stator coil groups 21 distributed in the circumferential direction. The stator iron The core assembly 3 has several magnetizers 31 distributed circumferentially around the center of the stator coil winding 2 and respectively embedded between two adjacent stator coil groups 21, preferably, the two adjacent stator coils 21 Winding gaps 22 are formed between the middle parts of the coil groups 21, and the winding gaps 22 are evenly distributed in the circumferential direction, and the magnetic conductors 31 are all sheet-shaped and embedded in the winding gaps 22 respectively. The ring-shaped magnetic permeable surface 2...
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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
technical field [0001] The invention belongs to the technical field of motor equipment, and in particular relates to a yokeless stator assembly and an axial permanent magnet hub type motor. Background technique [0002] As a new energy drive motor, the axial permanent magnet hub motor has many advantages. For example, it can be directly installed inside the hub of the wheel, directly driving the car, saving the space occupied by the car power system, and reducing the weight and structural complexity of the vehicle. . Its biggest feature is that the drive, transmission and braking devices are integrated into the hub, omitting clutches, transmissions, drive shafts, differentials, transfers and other transmission components. As consumers pay more and more attention to new energy vehicles, in-wheel motor technology will also come into people's field of vision, leading to an explosive growth in the demand for in-wheel motors. Since the hub motor is installed in the hub of the c...
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Patent Timeline
Login to View More IPC IPC(8): H02K16/02H02K1/16H02K1/18H02K1/27H02K1/30H02K5/18H02K5/20
CPCH02K1/16H02K1/182H02K1/2793H02K1/30H02K5/18H02K5/20H02K16/02
Inventor马连芳
Owner嘉兴弈承机电科技有限公司