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Hybrid excitation drive motor for electric vehicle

A hybrid excitation and drive motor technology, applied in the field of electric vehicles, achieves the effects of high reliability, improved mechanical strength and low loss

Active Publication Date: 2016-06-29
SHANDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this electric vehicle drive motor only solves the problem by adding an additional structure, and does not change the performance of the motor itself.

Method used

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  • Hybrid excitation drive motor for electric vehicle
  • Hybrid excitation drive motor for electric vehicle
  • Hybrid excitation drive motor for electric vehicle

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Experimental program
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Embodiment Construction

[0028] The invention will be described in further detail below in conjunction with the accompanying drawings.

[0029] figure 1 It is a longitudinal sectional view of a hybrid excitation drive motor for an electric vehicle according to the present invention. The hybrid excitation drive motor shown consists of nut (1), axle (2), hub (3), armature winding (5), stator core (7), permanent magnet (8), field winding (9) and bearing ( 11) Composition. The end of the axle (2) is fixed with the hub (3) through the nut (1); there is a hub pole inside the hub (3), and the hub pole protrudes along the axial direction of the axle (2); the stator core (7) is fixed on On the vehicle frame (10) and between the wheel hub (3) and the vehicle frame (10) in the axial direction, the end surface of the stator core (7) opposite to the wheel hub pole has a protruding stator pole.

[0030] Each stator pole has an armature winding (5) wound in a direction perpendicular to the axis; a permanent magne...

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Abstract

The invention provides a hybrid excitation drive motor for an electric vehicle. The hybrid excitation drive motor comprises a nut, an axle, a wheel hub, armature windings, a stator core, permanent magnets, excitation windings and a bearing; 4N fan ring-shaped wheel hub poles are arranged on an inner side of the wheel hub, and 6N fan ring-shaped convex stator poles are arranged on an end face of a side opposite to the wheel pole of the stator core; one armature winding twisted along an axial line direction is arranged on each stator pole; one permanent magnet is embedded on the circumferential inner sides of each three stator poles, and magnetizing directions of adjacent permanent magnets are opposite; and three stator poles corresponding to the same permanent magnet form a combined pole, and each excitation winding is twisted around the root of one combined pole. The hybrid excitation drive motor provided by the invention has a disk structure, a large stator and high power density, and can adjust the intensity of a magnetic field by changing the positive and negative directions of current in the excitation windings to adapt to different driving conditions.

Description

technical field [0001] The invention relates to a hybrid excitation drive motor of an electric vehicle, which belongs to the technical field of electric vehicles. Background technique [0002] Today's social environment is deteriorating and energy shortages are becoming more and more prominent. The whole society's requirements for energy saving and environmental protection are promoting the development of new energy vehicles. As a representative of new energy vehicles, electric vehicles have gradually become the main direction of development. Drive motor is one of the key technologies to be studied in electric vehicles. [0003] At present, electric vehicles mainly use permanent magnet brushless motors, which have significant advantages such as simple structure, reliable operation, small size, less loss, and flexible shapes and sizes of motors. However, due to the non-adjustable excitation and low constant power adjustable speed ratio of this kind of motor, more power rese...

Claims

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Application Information

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IPC IPC(8): H02K21/38H02K1/17H02K1/14
CPCH02K1/14H02K1/17H02K21/38H02K2213/03Y02T10/64
Inventor 史立伟郭盈志肖东张学义巩合聪
Owner SHANDONG UNIV OF TECH
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