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Electric machines

A technology for motors and generators, applied in the field of manufacture and use, machine assembly, motors and generators, can solve the problems of complex and time-consuming manufacturing and/or assembly, improve service life and reduce the impact of bearing current Effect

Active Publication Date: 2019-12-06
INTELLIGENT ELECTRIC MOTOR SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Manufacturing and / or assembly of components of electric machines such as motors or generators, such as rotors and stators, can be complex and time-consuming

Method used

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Examples

Experimental program
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Embodiment Construction

[0171] Embodiments of the invention are applicable to generators and electric motors, and embodiments and features of the invention relating to electric motors will be understood to relate to generators as well. Likewise, it should also be understood that parts of the description relating to stators apply equally to rotors (eg wound rotors) of electric motors or generators.

[0172] figure 1 A pole segment 10 is shown comprising a radial pole 16 and a base 12 . The base 12 is arcuate, bent around a longitudinal axis (forming the axis of rotation of the assembled motor including the pole segments). The base 12 comprises an inner surface 4 (towards the longitudinal axis), an opposite outer surface 6 , an end surface 2 perpendicular to the longitudinal axis and a radial surface 8 . In each end face 2 there is provided a groove 18, each groove 18 for receiving a circlip. The radial face 8 at one end of the base 12 has male locating features 20 and the radial face 8 at the other...

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PUM

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Abstract

A stator or rotor for an electric machine such as a motor or generator comprises: at least one ring formed of a plurality of pole segments, wherein each pole segment comprises an arcuate base and at least one magnetisable pole extending radially from the arcuate base; and at least one end cap comprising, or consisting essentially of, a non-conductive material.

Description

technical field [0001] The present invention relates to electric machines, such as electric motors and generators. The invention also relates to the assembly, manufacture and use of such a machine. Background technique [0002] Typically, a stator for an electric motor, such as a brushless DC or AC motor, comprises a plurality of laminated steel sheets. Laminated steel sheets are insulated from each other. Laminated steel sheets are stamped, annealed and stacked during the manufacturing process to form the main stator frame. The main stator frame is generally substantially cylindrical and includes a plurality of magnetic bar members. Each pole member has a coil wound thereon. [0003] Extruding a substantially laminated steel stator frame not only presents cost issues associated with cutting steel loss, but there may also be difficulties in winding the coils on the pole members of the stator frame. [0004] Alternatively, soft magnetic composite materials such as iron p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/14H02K1/20H02K5/08H02K5/16H02K1/04H02K1/06
CPCH02K1/148H02K1/20H02K5/08H02K5/161H02K2213/03
Inventor 大卫·布伦顿·格莱尔特马修·伯登·史密斯内西米·埃尔图鲁尔
Owner INTELLIGENT ELECTRIC MOTOR SOLUTIONS