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Stator for electric motor and method of manufacturing stator

A motor and stator technology, which is applied in the manufacture of stator/rotor bodies, motor generators, and motor components, etc., can solve problems such as the reduction of motor efficiency and power capability, and achieve the effect of improving retention force and structural integrity.

Active Publication Date: 2020-12-01
PROTEAN ELECTRIC LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] However, the integration of the electric motor and its associated control system within the vehicle's wheels may impose increased thermal management considerations on the electric motor, which may additionally result in a reduction in the electric motor's ability to generate efficiency and power

Method used

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  • Stator for electric motor and method of manufacturing stator
  • Stator for electric motor and method of manufacturing stator
  • Stator for electric motor and method of manufacturing stator

Examples

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Embodiment Construction

[0025] figure 1 and figure 2 Shown is an electric motor assembly according to the invention and having an electric motor with a stator, wherein the electric motor assembly includes built-in electronics and is configured to function as an in-wheel or in-wheel motor arranged to be housed within a wheel. However, the invention can be incorporated into any form of electric motor. The electric motor can also be configured as a generator.

[0026] For the purposes of this embodiment, if figure 1 and 2 As shown, the in-wheel motor includes a stator assembly 252 and a rotor assembly 240 . The stator assembly 252 includes a heat sink 253 with cooling channels, a laminated back iron (not shown), multiple coils 254, an electronics module 255 mounted on the rear of the stator for driving the coils, and capacitors (not shown) as described below, The capacitor is mounted on the stator in a recess 257 formed at the rear of the stator. In a preferred embodiment, the capacitor is a ring...

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PUM

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Abstract

A stator for an electric motor comprising a back iron having a first surface and a heat sink having a second surface, wherein the first surface of the back iron includes a plurality of keying features configured to position the heat sink retained on the back iron, wherein the heat sink is configured to provide cooling to the back iron from the second surface, and wherein the second surface has complementary complementary features to key features on the first surface A complementary key feature is formed by casting the heat sink on the first surface of the back iron.

Description

technical field [0001] The invention relates to a stator for an electric motor and a method of manufacturing a stator for an electric motor. Background technique [0002] As the interest in environmentally friendly vehicles has increased, there has been a corresponding increase in interest in the application of electric motors to provide drive torque for electric vehicles. [0003] Motors work on the principle that current carrying wires will be stressed in the presence of a magnetic field. When the current-carrying wire is placed perpendicular to the magnetic field, the force on the current-carrying wire is proportional to the flux density of the magnetic field. Normally, the force on the current-carrying wires in an electric motor develops a torque. [0004] Examples of known types of motors include induction motors, brushless permanent magnet motors, switched reluctance motors, and slip ring synchronous motors, which have a rotor and a stator as is well known to those s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/18H02K15/02H02K15/14H02K5/20
CPCH02K15/02H02K15/14H02K1/187H02K9/227H02K5/203H02K1/20H02K15/022H02K15/03
Inventor 加里斯·罗伯茨
Owner PROTEAN ELECTRIC LIMITED
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