The invention discloses a generator, a range extender and a vehicle, the generator comprises a casing, a stator and two oil injection rings, the casing comprises a side wall part provided with an oil inlet, an oil outlet, a main oil groove and two branch oil grooves, the stator comprises an iron core and a winding wound on the iron core, the two oil injection rings are arranged at the two ends of the stator respectively, and the oil injection rings are arranged on the side wall part. The iron core and the inner wall of the main oil groove are enclosed to form a main oil duct capable of communicating the oil inlet and the oil outlet, cooling oil can exchange heat with the iron core when passing through the main oil duct, so that heat exchange of the iron core is realized, and meanwhile, the two branch oil ducts are communicated with the main oil duct, so that heat exchange efficiency is improved. Cooling oil can be sprayed and cooled towards the two end windings through the oil spraying holes via the two branch oil channels at the same time, the main oil groove is formed in the inner wall of the side wall portion of the machine shell, the situation that grooving is conducted on the stator, the overall mode of the stator is affected, and then the potential risk of NVH is caused is avoided, and the service life of the stator is prolonged on the premise that the mode of the stator is not affected. The problems that an iron core and an end winding in an existing generator motor are serious in heating and low in heat dissipation efficiency are solved.
本发明公开一种发电机、增程器和车辆,发电机包括机壳、定子和两个喷油环,机壳包括设置有进油口、出油口、主油槽和两个分油槽的侧围部,定子包括铁芯以及绕设于铁芯上的绕组,两个喷油环分设于定子的两端,铁芯与主油槽的内壁之间围合形成可连通进油口和出油口的主油道,冷却油经主油道时,可与铁芯之间进行换热,从而实现对铁芯的换热,同时两个分油道与主油道连通,冷却油同时可以经两个分油道通过喷油孔朝向两个端部绕组进行喷油散热,主油槽设置在机壳的侧围部的内壁上,避免在定子上开槽而影响定子整体的模态,进而导致NVH的潜在风险,以在不影响定子模态的前提下,解决现有的发电机电机内部的铁芯和端部绕组发热严重,散热效率低的问题。
Generator, range extender and vehicle
发电机、增程器和车辆
15.03.2024
Patent
Elektronische Ressource
Chinesisch
Bidirectional inverter, generator, range extender and vehicle
Europäisches Patentamt | 2024
|Range extender body, range extender, range extender design method and vehicle
Europäisches Patentamt | 2024
|