High-voltage brushless direct-current generator structure

Abstract

A high-voltage brushless DC generator structure, including a stator, a brushless rotor, an excitation assembly, a pulley, and a shaft; one end of the heat dissipation shell is connected to the front heat dissipation end cover, the other end is connected to the rear heat dissipation end A stator, a brushless rotor, and an excitation assembly are arranged between the heat dissipation end covers, the heat dissipation fan is installed outside the rear heat dissipation end cover, and the fan guard is placed outside the heat dissipation fan and connected with the rear heat dissipation end cover. The present invention adopts the structure that the cooling fan is installed on the outside of the rear heat dissipation end cover to avoid electrostatic interference on the generator; the front heat dissipation end cover, the rear heat dissipation end cover and the heat dissipation housing form a sealed structure, which can effectively isolate the washing water from entering the generator; The heat dissipation shell, the front heat dissipation end cover, and the rear heat dissipation end cover are all equipped with radial heat dissipation ribs to increase the heat dissipation area; the whole motor and the engine are made to vibrate at the same frequency through the base installation method on the heat dissipation shell, and the belt pulley The transmission mode can effectively absorb the vibration and shock of the engine.

Description

technical field [0001] The invention relates to a generator structure, in particular to a high-voltage brushless DC generator structure. Background technique [0002] At present, high-voltage DC generators have gradually replaced DC 28V high-power generators or mechanical drives as an important choice of power source for large passenger cars or high-power vehicle-mounted air-conditioning systems. The power supply quality of high-voltage DC generators has reached high requirements through years of research and development, but high-voltage DC generators are generally installed at the rear of large passenger cars, and the vehicle-mounted environment used is harsh: including severe vibration of the generator, and installation in the same cabin as the engine. The working environment temperature of the generator is very high, and the motor is flooded by washing the car with water, etc., resulting in a short reliability (life) of the generator. The existing high-voltage DC genera...

AI Technical Summary

Problems solved by technology

The power supply quality of high-voltage DC generators has reached high requirements through years of research and development, but high-voltage DC generators are generally installed at the rear of large passenger cars, and the vehicle-mounted environment used is harsh: including severe vibration of the generator, and installation in the same cabin as the engine. The working environment temperature of the generator is very high, and the motor is flooded by washing the car with water, etc., resulting in a short reliability (life)

Existing high-voltage DC generators still have the problem that the fan is installed inside the power generation unit, which is prone to electrostatic interference

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