Disc-type starter/generator all-in-one machine

Abstract

The invention relates to a disc-type starter / generator all-in-one machine. The machine comprises a motor, a speed reducer and an engine crankshaft; the machine is characterized in that: the motor is a disc-type motor and a stator is fixedly arranged on a motor shell; a rotor shaft extension is located on the motor shell through a bearing; the speed reducer is a planetary speed reducer and comprises an inner gear ring, a sun wheel, planetary wheel sets and a planetary wheel disc; the sun wheel is fixedly arranged on the rotor shaft extension and the inner gear ring is located on the motor shell by unidirectional movement; three planetary wheel sets which are uniformly distributed between the inner gear ring and the sun wheel are located on a pin shaft of the planetary wheel disc through a unidirectional bearing; and the planetary wheel disc is fixedly arranged on the engine crankshaft. The inner gear ring and the planetary wheel sets are located by the unidirectional movement and are mutually matched in the movement process; when the machine is started, the motor is decelerated to output a low rotary speed and a great torque to drive an engine to ignite; and after the engine is started, the disc-type motor can be driven at the same speed to generate power. The disc-type starter / generator all-in-one machine has the advantages of compacted structure and small volume and can be installed on the traditional vehicle to replace a starter motor and a power generator.

Description

Technical field: [0001] The invention belongs to the field of starter motors, in particular to a disc-type starter and generator integrated machine. Background technique: [0002] The electric starter of the existing vehicle has two motors. The starter motor is installed outside the flywheel of the engine, and the generator is installed on the fan side of the front end of the engine. After the gear is meshed with the engine flywheel, it drives the engine to run with high torque and low speed to ignite and start. After the engine is started, the one-way device works, the starter motor is separated from the flywheel disc of the engine, and the starter motor stops working when it loses power; at the same time, the engine drives the generator through the pulley to run at high speed to generate power for the battery and electrical equipment. The engine and generator are always running at the same time, and the starter motor is only used when the engine is started, and it is idle...

AI Technical Summary

Problems solved by technology

[0006] Under this special requirement, there are: firstly, the selection of the motor is unreasonable, so that it is too large to be installed in the original space; secondly, the integrated design of the transmission and the one-way device cannot satisfy the large speed change and high torque of the starter motor to drive the engine , but after the engine is started, it cannot drive the starter motor to generate electricity at the same speed, so that the efficiency of the motor is not high and cannot meet the power demand

[0007] Therefore, it is difficult to meet the two different requirements with a large difference with one motor.

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