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High-reliability four-phase alternating current starting motor

A starter generator, reliability technology, applied to synchronous generators, synchronous motors for single-phase current, etc., to achieve the effect of fast speed, high reliability and low failure rate

Active Publication Date: 2014-04-02
CHONGQING YIHU ENGINE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, no AC starter generator with 4n / (4n-2) or 4n / (4n-4) pole structure, brushless claw pole electric excitation rotor and four-phase ring winding has been found at home and abroad.

Method used

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  • High-reliability four-phase alternating current starting motor
  • High-reliability four-phase alternating current starting motor
  • High-reliability four-phase alternating current starting motor

Examples

Experimental program
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Embodiment Construction

[0018] The invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] Such as figure 1 The structure diagram of the high-reliability four-phase AC starter generator shown includes the front end cover, the rear end cover, the stator, the bearing, the field yoke, the field winding, the position sensor and the shaft, the N pole claw pole, and the S pole claw pole. A rotor composed of a claw pole connecting block. The rotor is positioned on two end caps through bearings and can rotate around the rotor shaft. The rotor shaft is fixed with N pole claw poles, which are connected by non-magnetic claw poles Block fixed S pole claw poles, N pole claw poles and S pole claw poles are arranged at intervals, the total number of claw poles is 4n-2=14, n=4, the field winding inside the claw pole is fixed to the motor through the excitation yoke On one end cover, there is an air gap between the excitation yoke and the claw poles. The claw poles,...

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Abstract

The invention provides a high-reliability four-phase alternating current starting motor, which comprises end covers, a stator, a bearing, a magnetic yoke, an exciting winding, a position sensor and a rotor formed by a shaft and pawl poles; the rotor pawl poles are fixed on the pawl shaft; the number of the pawl poles is 4n-2 or 4n-4, wherein n in a natural number; the exciting winding inside the pawl poles is fixed on the end cover at one end of the motor by the magnetic yoke; the stator is positioned outside the rotor and has the pole number of 4n; centralized windings are arranged on stator poles; n stator coils in close phases are serially connected to form one phase; the four phases of stator windings are annularly connected end to end and are respectively connected onto middle points of four-phase bridge arms. The four-phase starting motor can be used both as a starter and a power generator; the reliability is high as the four-phase centralized stator windings are adopted; well voltage adjusting performance is realized by adopting a brushless electro-exciting structure and the high-reliability four-phase alternating current starting motor is suitable for being used on a vehicle idle speed halt system.

Description

technical field [0001] The invention relates to a highly reliable four-phase AC starter generator, which belongs to the technical field of automobile starter generators. Background technique [0002] The starter generator can not only be used as a motor to start the engine, but also can be used as a generator to supply power to electrical equipment. It is a key component of new energy-saving vehicles such as hybrid vehicles and idle stop vehicles. With the development of automobile technology, the reliability requirements for key components of automobiles are getting higher and higher. A four-phase motor has four-phase windings. When one phase fails, the other three phases can continue to work, so the four-phase motor has higher reliability. At present, there are some starter generators using permanent magnet synchronous motors at home and abroad. However, permanent magnet motors do not have the ability to demagnetize quickly. When switching loads or encountering major faul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K19/12H02K19/26
Inventor 史立伟
Owner CHONGQING YIHU ENGINE MACHINERY
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