Permanent magnetism synchronous wheel hub motor for directly driving electric vehicle wheel

An electric vehicle, permanent magnet synchronous technology, applied in electric vehicles, synchronous machine parts, motors, etc., can solve the problems of increasing the design difficulty of the whole vehicle, complicated structure space layout, and increased maintenance workload, etc. The effect of good control performance and efficient use of space

Inactive Publication Date: 2008-10-08
XIANGTAN ELECTRIC MFG CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the existing electric vehicles use DC motors and deceleration and differential mechanisms to achieve transmission. This kind of structural space layout is complex, and the specific power of the motor is small, which increases the difficulty of vehicle design; the system efficiency is low, resulting in short battery life; Replacement of brushes, poor reliability and increased maintenance workload

Method used

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  • Permanent magnetism synchronous wheel hub motor for directly driving electric vehicle wheel
  • Permanent magnetism synchronous wheel hub motor for directly driving electric vehicle wheel

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing, the present invention will be further described.

[0014] Refer to attached figure 1 , this embodiment includes a shaft 1, a left end cover 3, a rotor 4, a stator 5, a right end cover 6, and a rotary transformer 7, the shaft 1 is equipped with a bearing 2, and the inner rings of the left end cover 3 and the right end cover 6 are in interference fit with the bearing 2, The stator 5 is shrunk onto the bracket a of the shaft 1, and the silicon steel sheets in the stator 5 are connected by high temperature resistant glue; the left end cover 3, the right end cover 6 and the rotor 4 are connected by bolts; the rotor 4 is made of rare earth magnetic steel b The polarity is alternately pasted with magnetic steel glue on the inner wall of the bracket a, which can rotate around the axis 1. The iron core is punched with equally distributed grooves, and coils are wound in the grooves;

[0015] The shaft 1 is a hollow shaft, and the s...

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Abstract

A permanent magnetism synchronous hub motor for electrically driven vehicle direct drive comprises shafts, a left end cover, rotors, stators, a right end cover, a rotating transformer, bearings are arranged on the shafts, inner rings of the left end cover and the right end cover are connected with the bearings in interference fit, stators are hot sleeved on the support of the shaft, the left end cover, the right end cover and the rotors are jointed together by bolts, the rotors are composed of rare earth magnet steels at interval adhering in the inner wall of the support by the magnet steel glue. The invention can be mounted in the vehicle wheel hub for directly driving the vehicle wheel and save traditional drive devices, thereby simplifying the whole vehicle structure, improving the drive efficiency and using the space effectively; the invention is an outer rotor motor without reduction gear mechanism, has small volume, large power, large starting moment, good control performance and low energy consumption, can reduce the whole vehicle weight and the maintenance cost and improve continued mileage and battery life.

Description

technical field [0001] The invention relates to a hub motor, in particular to a permanent magnet synchronous hub motor directly driven by wheels of an electric vehicle. Background technique [0002] At present, with the development of the economy and the improvement of people's living standards, environmental protection has attracted great attention. With its advantages of no pollution, no noise, lightness and simplicity, electric vehicles are widely used in various fields and have achieved considerable development. Most of the existing electric vehicles use DC motors and deceleration and differential mechanisms to achieve transmission. This kind of structural space layout is complex, and the specific power of the motor is small, which increases the difficulty of vehicle design; the system efficiency is low, resulting in short battery life; Replacing the brushes has poor reliability and increases the maintenance workload. Contents of the invention [0003] The purpose of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/22H02K21/02H02K1/12H02K1/27H02K5/04H02K11/00H02K7/14H02K11/21
CPCY02T10/641Y02T10/64
Inventor 徐卫东朱利民邓群汤一兵
Owner XIANGTAN ELECTRIC MFG CORP LTD
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