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Axial flux motor with insulated rotor

A technology of axial magnetic flux and electric motor, applied in the direction of synchronous motor with stationary armature and rotating magnet, magnetic circuit characterized by insulating materials, electric components, etc., can solve the problem of increasing iron loss of permanent magnet, laminated silicon steel Problems such as weakened insulation performance and reduced efficiency

Active Publication Date: 2022-05-31
GM GLOBAL TECH OPERATIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the insulating properties of laminated silicon-steel tape may be weakened due to metal fasteners piercing the laminated layers
Additionally, when an axial flux motor is energized, metal fasteners and metal cages tend to react with the flux to create major eddy current loops, increasing eddy current losses in the metal cage and metal fasteners and increasing the permanent magnet The iron loss in the

Method used

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  • Axial flux motor with insulated rotor
  • Axial flux motor with insulated rotor
  • Axial flux motor with insulated rotor

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Embodiment Construction

[0034] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, or uses. Disclosure with reference to the accompanying drawings

[0037] The plurality of conductive windings 108 of the stator 102 may be formed of copper wire that may operate to

[0038] Referring to FIG. 2, the first rotor 104A and the second rotor 104B are substantially similar, so it should be understood that the following pairs have non-conductive

[0039] FIG. 4 shows a schematic side view of the partially completed laminated annular disk 112, with features exaggerated to show fine detail.

[0041] Referring again to FIG. 3, a plurality of permanent magnets 122 are circumferentially equidistantly positioned on the inner annular surface 114 and are

[0044] The segmented cage 140 includes a central ring 162 having an axially extending circumferential wall 164 facing away from the axis A.

[0047] The description of the present invention is merely ...

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Abstract

An axial flux motor includes a stator and a rotor disposed adjacent to the stator about an axis of rotation, thereby defining an air gap therebetween. The rotor includes a disc having an inner surface oriented toward the stator and an opposite outer surface; a plurality of magnets fixed on the inner surface of the disc in a predetermined arrangement; a backing plate abutting the outer surface of the disc; and mounted on the inner surface on the segmented cage. The backing plate includes a circumferential edge surface defining a plurality of notches. The segmented cage includes a plurality of retention ribs configured to retain the magnets on the inner surface of the disc in a predetermined arrangement. The segmented cage cooperates with the backing plate to structurally support the discs therebetween, thereby preventing the discs from bending in the axial direction.

Description

Axial Flux Motor with Insulated Rotor technical field [0001] The present invention relates to an axial flux motor; more particularly, to an axial flux motor having an electrically insulated rotor electric motor. Background technique [0002] Electric motors convert electrical energy into mechanical energy using the principle of electromagnetic interaction of the magnetic field generated by coils and magnets. Electricity The motive usually consists of a stationary part called the stator and a rotating part called the rotor. The rotor is separated from the stator by a small air gap and Rotates relative to a stationary stator. The output shaft may be coupled to the rotor to transfer rotational mechanical energy for useful use. Depending on the position of the rotor relative to the stator, motors can be classified as radial flux motors or axial flux motors machine. In a radial flux motor, the flux created by the interaction between the energized stator and rotor exte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K16/02H02K1/2798H02K1/30
CPCH02K16/02H02K1/30H02K1/2798H02K1/04H02K21/24H02K1/28
Inventor 姚健段诚武
Owner GM GLOBAL TECH OPERATIONS LLC