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Power generator

A generator and engine technology, applied in the field of generators, can solve the problems of increasing the magnetic field air gap, carbon brushes are easy to wear, and disconnected, and achieve the effects of reducing noise and exhaust emissions, and reducing material and energy consumption.

Inactive Publication Date: 2012-05-02
上海北星实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The excitation winding of the rotor is easy to be blown, disconnected, and consumes a lot of electric energy. The excitation current must be provided by the battery to generate electricity, which will inevitably increase the cost
The silicon rectifier engine slip ring with carbon brush slip ring structure has large diameter, high linear speed, easy wear of carbon brush, short life, and high failure rate; the brushless silicon rectifier generator increases the magnetic field air gap, large magnetic flux leakage, and material utilization low rate, high cost

Method used

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Embodiment Construction

[0024] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0025] From the common knowledge, we can know that the principle of the generator is the same as that of the engine. There are three-phase coils of A, B, and C in the stator core slot with the same number of coil turns, and there are coils divided into N poles in the rotor core slot. and S pole, when the external direct current passes through the brush and slip ring into the rotor coil, magnetic force lines will be generated on the rotor coil. The direction of this magnetic force line is from N pole to S pole. When rotating at a speed of 1 minute), it means that the magnetic line of the rotor is also rotating at the speed of n1. This process is cut by the stator coil to generate an induced electromotive force (induced voltage) in the stator...

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Abstract

The invention discloses a power generator, which comprises a stator, a rotor and a bearing. The stator is used for generating a magnetic field, the rotor is used for energy conversion, the bearing is used for supporting the rotor, the power generator is also fixedly connected with an engine, the stator of the power generator is also used as the stator of the engine, and the rotor is connected with a crankshaft flange of the engine. The invention also discloses a control circuit of the power generator. Since the stator and the rotor are commonly used by the power generator and the engine, the space can be saved, and the efficiency can be increased.

Description

technical field [0001] The invention relates to a generator. Background technique [0002] As we all know, in the traditional engine electrical system, the generator and the engine are two independent electrical devices with the largest volume and weight, and they play very important roles. However, there are generally disadvantages such as low efficiency and high failure rate. [0003] At present, domestic engines are mainly series-excited electromagnetic engines, which use excitation coils to provide a magnetic field, and have a complex structure; the excitation coils are connected in series with the armature coils, and the excitation coils consume a certain amount of electric energy, and the efficiency is low; it is easy to burn out due to excessive heating temperature, resulting in open circuit or Open circuit, low reliability; the excitation coil needs to absorb the lagging excitation current from the battery, thereby increasing the reactive power and reducing the powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/18
Inventor 唐纳德陈妍
Owner 上海北星实业有限公司