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Rotor of motor, synchronous motor having the same and wound rotor synchronous motor

A rotor and coil technology, applied in the field of wound rotor synchronous motors, can solve the problems of reducing efficiency and copper loss of rotor coils, and achieve the effect of reducing motor cost, reducing copper loss and improving efficiency

Inactive Publication Date: 2014-03-26
HYUNDAI MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, copper losses often occur in the rotor coils due to the high amount of current in them, reducing the efficiency

Method used

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  • Rotor of motor, synchronous motor having the same and wound rotor synchronous motor
  • Rotor of motor, synchronous motor having the same and wound rotor synchronous motor
  • Rotor of motor, synchronous motor having the same and wound rotor synchronous motor

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Embodiment Construction

[0026] Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0027] The terms used herein are for describing particular embodiments only, and are not intended to limit the present invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It will also be understood that the words "comprising" and / or "comprising", when used in this specification, refer to the presence of stated features, integers, steps, operations, elements and / or components, but do not exclude a or the presence or addition of more other features, integers, steps, operations, elements, components and / or combinations thereof. As used herein, the word "and / or" includes any and all combinations of one or more of the associated listed items.

[0028] It should be understood that the term "vehicle" or "vehicular" or other similar t...

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PUM

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Abstract

Disclosed is a rotor for a motor in a vehicle. More specifically, the rotor includes a rotation shaft serving as a center of rotation of the rotor, a core installed at the rotation shaft and comprising a plurality of teeth radially protruding with respect to the rotation shaft, a coil wound around the tooth to generate a magnetic field by an external power source, and a pair of permanent magnets installed at both sides of the teeth. Also disclosed is a synchronous motor including the rotor, and a wound rotor synchronous motor.

Description

technical field [0001] The invention relates to a rotor of an electrical machine wound with coils. A synchronous machine including the rotor, and a wound rotor synchronous machine are also disclosed. Background technique [0002] Electric vehicles typically provide drive power from DC motors, induction motors or permanent magnet synchronous motors, each connected to an appropriate power converter. These motors can be any of a number of configurations. Among them, the interior permanent magnet (IPM) motor, which can obtain uniform power operation in a wide speed range, is mainly used in electric vehicles (EV) and hybrid electric vehicles (HEV). [0003] However, in IPM motors, rare earth permanent magnets are usually arranged inside the rotor. Therefore, the power factor cannot usually be made into 1, and the cost of IPM motors is significantly increased due to the cost of rare earth permanent magnets. Therefore, motors that do not use rare-earth permanent magnets have be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27H02K21/14H02K21/02
CPCH02K1/223H02K21/14H02K1/27H02K21/02H02K21/042H02K21/16H02K1/24
Inventor 金京范曹炯俊文相勋朴商振金廷式
Owner HYUNDAI MOTOR CO LTD