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Electric motor and electric generator

A motor and voltage technology, applied in the direction of motor, AC motor control, generator control components, etc., to achieve the effects of low conversion loss, reduced capacitor demand, and fast conversion speed

Inactive Publication Date: 2011-07-20
PROTEAN ELECTRIC LIMITED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the reduced number of revolutions in the coil results in a reduced inductance for the motor, since the inductance of the motor is proportional to the square of the number of revolutions

Method used

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  • Electric motor and electric generator
  • Electric motor and electric generator
  • Electric motor and electric generator

Examples

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Embodiment Construction

[0037] The described embodiment of the invention is for an in-wheel electric motor of a vehicle. The electric motor is of the type having a set of coils which is part of the stator for attachment to the vehicle, which is radially surrounded by a rotor with a set of magnets for attachment to the wheel. For the avoidance of doubt, aspects of the invention are equally applicable to electric motors having the same arrangement. Furthermore, aspects of the present invention are applicable to devices having a rotor mounted centrally within a radially surrounding coil.

[0038] The physical arrangement of the specific implementation components can be referred to Figure 4 and Figure 5 to gain a clear understanding. The assembly can be described as an electric motor with built-in electronics and bearings, or it can be described as a hub motor or hub drive when it is built to accommodate separate wheels.

[0039] first reference Figure 4 , the assembly includes a stator 252 compr...

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Abstract

An electric motor comprising a stator having two coil sets arranged to produce a magnetic field of the motor, each coil set comprising a plurality of coil sub-sets; and two control devices, wherein the first control device is coupled to the plurality of coil sub-sets for the first coil set and the second control device is coupled to the plurality of coil sub-sets for the second coil set and each control device is arranged to control current in the respective plurality of coil sub-sets to generate a magnetic field in each coil sub-set to have a substantially different magnetic phase to the other one or more coil sub-sets in the respective coil set; and wherein the first control device and the second control device are mounted adjacent to the stator.

Description

technical field [0001] The invention relates to a motor and a generator, in particular to an in-wheel motor and an in-wheel generator. Background technique [0002] A generator system typically includes an electric motor and a control unit configured to control power to the electric motor. Examples of known motor types include: induction motors, synchronous brushless permanent magnet motors, switched reluctance motors, and linear motors. In the commercial arena, three-phase motors are the most common type of motor available. [0003] Three-phase motors typically include three coil sets, where each coil set is configured to generate a magnetic field associated with one of the three phases of an alternating voltage. [0004] To increase the number of magnetic poles formed in the motor, each coil group usually has a number of sub-coil groups distributed around the periphery of the motor and driven to generate a rotating magnetic field. [0005] pass figure 1 As can be seen,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K11/00
CPCH02K29/08H02K2213/12H02K16/04H02P25/22H02P6/08B60L15/007B60L2270/145B60L15/025B60L2270/142H02K3/28B60L2220/44H02K11/0073B60L15/2045B60L2220/14H02K2213/06H02K11/00H02P6/16H02P23/00H02P25/16H02K11/33Y02T10/72H02P6/28Y02T10/64H02K11/30H02P9/02H02K19/10H02P27/08
Inventor 李毅鲁珀特·柯比乔纳森·迈耶
Owner PROTEAN ELECTRIC LIMITED
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