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motor or generator

A technology for generators and motors, which is applied in the direction of electric components, electromechanical devices, electrical components, etc., and can solve problems such as reducing magnetic flux, wearing stators, and reducing motor torque

Active Publication Date: 2017-08-25
PROTEAN ELECTRIC LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] If there is contact between the rotor and the stator, this will increase the friction between the rotor and the stator, thereby reducing the efficiency of the motor
Furthermore, for electric motors that include a rotor with 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 and thus the motor torque
[0007] Additionally, contact between the stator and rotor can wear the outside of the stator, causing short circuits between stator laminations, which can adversely affect eddy current flow in the stator

Method used

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

Examples

Experimental program
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Embodiment Construction

[0017] figure 1 and figure 2 Shown is a motor assembly comprising an electric motor in a touch-to-stop configuration according to the present invention, wherein the motor assembly includes built-in electronics and is configured for use as an in-wheel motor or an in-wheel motor housing a wheel. However, the present invention may be incorporated in any form of electric motor. The electric motor can also be configured as a generator.

[0018] figure 2 shows the view from the opposite side with the figure 1 An exploded view of the same components.

[0019] For the purposes of this example, if figure 1 and figure 2 As shown, the in-wheel motor includes a stator 252 and a rotor 240 . The stator 252 includes a main stator chassis 253 with a heat sink, a plurality of coils 254 and an electronic module 255 mounted on the rear of the main stator chassis 253 for driving the coils. Coils 254 are formed on the stator tooth laminations to form the coil windings. The stator teeth...

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Abstract

An electric motor or generator comprising a stator having stator teeth for mounting electrical coils and a rotor, wherein the stator has a first surface substantially perpendicular to an axis of rotation of the rotor, and the rotor has a first surface formed substantially with the first surface of the stator A second surface in the same radial position, wherein the first surface and the second surface are configured to prevent the rotor from contacting the stator teeth when the rotor is pivoted perpendicular to the axis of rotation of the rotor.

Description

technical field [0001] The present invention relates to electric motors or generators, and more particularly to motors or generators having low friction touch-down bodies. Background technique [0002] Electric motors work on the principle that a current carrying wire experiences a force in the presence of a magnetic field. When a current-carrying wire is placed perpendicular to a magnetic field, the force experienced by the current-carrying wire is proportional to the flux density of the magnetic field. Typically, in an electric motor, the force on the current-carrying wire creates a rotational torque. [0003] Examples of known types of motors include induction motors, brushless permanent magnet motors, switched reluctance motors and synchronous slip ring motors, which include a rotor and a stator, as are well known to those skilled in the art. [0004] In order to minimize the risk that the flux density will be significantly reduced between the stator and rotor, the gap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K1/12H02K1/22
CPCH02K7/088B60K7/0007H02K7/14H02K2213/06B60K2007/0038B60K2007/0092H02K1/2791H02K5/167H02K7/08F16C19/52F16C17/24B60K7/00H02K1/27
Inventor G·罗伯茨
Owner PROTEAN ELECTRIC LIMITED