The invention relates to an electric drive system (1) for a motor vehicle, comprising: a housing (2); an electric machine (3) comprising a rotor (5) connected in a rotationally fixed manner to a rotor shaft (6); the planetary gear transmission mechanism (7) comprises exactly one sun gear (8) and exactly one planetary gear carrier (9), the planetary gear carrier (9) is provided with a set of first planetary gears (10) and a set of second planetary gears (11), the diameter of the first planetary gears (10) is larger than that of the second planetary gears (11), and the diameter of the second planetary gears (11) is larger than that of the sun gear (8). Each of the respective one of the first planet gears (10) and each of the respective one of the second planet gears (11) are connected to each other in a rotationally fixed manner, the sun gear (8) meshes with the first planet gears (10), the rotor shaft (6) is connected to the sun gear (8) in a rotationally fixed manner, and the planet carrier (9) is connected to an input shaft (15) of a shaft drive (13) in a rotationally fixed manner. Exactly one ring gear (12) is provided, which meshes with the second planetary gear (11), and a first freewheel (18) is arranged between the ring gear (12) and the housing (2), whereby the ring gear (12) engages with the housing (2) such that a rotation of the ring gear (12) in the forward direction of rotation of the rotor (5) is prevented.
本发明涉及一种用于机动车的电驱动系统(1),其具有:壳体(2);电机(3),其包括抗旋转地连接至转子轴(6)的转子(5);行星齿轮传动机构(7)和轴驱动机构(13),其中,行星齿轮传动机构(7)包括正好一个太阳轮(8)和正好一个行星齿轮架(9),行星齿轮架(9)上装有一组第一行星齿轮(10)和一组第二行星齿轮(11),第一行星齿轮(10)的直径大于第二行星齿轮(11),各相应的其中一个第一行星齿轮(10)和各相应的其中一个第二行星齿轮(11)抗旋转地相互连接,太阳轮(8)与第一行星齿轮(10)啮合,转子轴(6)抗旋转地连接至太阳轮(8),行星齿轮架(9)抗旋转地连接至轴驱动机构(13)的输入轴(15)。在此设有正好一个齿圈(12),它与第二行星齿轮(11)啮合,第一自由轮(18)设置在齿圈(12)与壳体(2)之间,齿圈(12)借此接合至壳体(2)使得齿圈(12)沿转子(5)的前向转动方向的转动被阻止。
Electric drive system for motor vehicle
用于机动车的电驱动系统
2024-06-18
Patent
Electronic Resource
Chinese
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