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Electric motor or generator

A technology of generators and motors, applied in the direction of motors, electric vehicles, electric components, etc., can solve the problems of reducing magnetic flux, reducing motor torque, shortening distance, etc., and achieving the effect of minimizing the risk of damage

Active Publication Date: 2015-02-18
PROTEAN ELECTRIC LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, for motors with rotors having permanent magnets, such as synchronous permanent magnet motors, contact between the stator and the permanent magnets can cause the permanent magnets to be damaged or destroyed, thereby reducing the magnetic flux, which in turn reduces the motor torque
[0006] In addition, the contact between the stator and the rotor wears off the outer portion of the stator, resulting in a shortened distance between the stator laminations, which has the deleterious effect of creating eddy currents in the stator

Method used

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  • Electric motor or generator
  • Electric motor or generator
  • Electric motor or generator

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Embodiment Construction

[0017] figure 1 An electric motor assembly is shown incorporating the electric motor with low friction lower contact pads of the present invention, wherein the electric motor assembly includes built-in electronics and is configured as an in-wheel motor or an in-wheel motor configured to accommodate wheel. However, the invention can also be integrated into any form of electric motor. The electric motor can also be configured as a generator.

[0018] refer to figure 1 , the motor assembly includes: a stator including a rear portion 230 (i.e., a rear stator wall) forming the first portion of the stator; and a radiator and coil driver 231 comprising a plurality of coils and driving the coils and radiator of electronic components. The coil driver 231 is fixed to the rear part 230 of the stator to form said stator, which can then be fixed to the vehicle so that it does not rotate during use. The coils themselves are formed on the teeth, which together with the drive means 231 a...

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Abstract

An electric motor or generator having a stator with stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface that is parallel to an axis of rotation of the rotor and is axially separated from the stator teeth and the rotor has a second surface that is formed in substantially the same axial position as the stator s first surface, wherein material is mounted on the first surface or the second surface that has a lower frictional coefficient than the first surface or second surface.

Description

technical field [0001] The present invention relates to an electric motor or generator, and more particularly to a lower contact pad having low friction. Background technique [0002] Electric motors work on the principle that when a wire carrying a current is placed within a magnetic field, it produces a force. When a current-carrying wire is placed perpendicular to a magnetic field, the force on the current-carrying wire is proportional to the flux density of the magnetic field. Typically, in an electric motor, the force on this current-carrying wire is in the form of rotational torque. [0003] Examples of known types of motors include conductance motors, brushless permanent magnet motors, switched reluctance motors and synchronous slip ring motors, which have a rotor and a stator, as is well known to those skilled in the art. [0004] To minimize the risk, the flux density between the stator and rotor will be significantly reduced, the gap between the stator and rotor ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/08
CPCB60K2007/0092B60K2007/0038H02K7/14F16C39/02H02K7/088H02K2213/06F16C33/04H02K5/10B60K7/0007B60L2220/12B60L2220/14B60L2220/16B60L2220/18B60L2220/44Y02T10/64F16C17/24F16C19/52F16J15/3204H02K5/1677
Inventor 迈克尔·卡尔弗特
Owner PROTEAN ELECTRIC LIMITED