阅读说明：本技术 用于机动车电动动力传动设备的传动装置以及机动车用电动动力传动设备 (Transmission device for an electric drive of a motor vehicle and electric drive for a motor vehicle ) 是由 T·施尔德尔 T·哈尔特 K·里德尔 于 2018-06-25 设计创作，主要内容包括：本发明涉及一种用于机动车的电动动力传动设备(10)的传动装置(26)，其具有壳体(30)、安置在该壳体(30)中的三个行星齿轮组(32,34,36)、能被电机(12)的转子(20)驱动的输入轴(64)、输出轴(68)，所述行星齿轮组各自具有太阳轮(38,46,54)、行星齿轮架(40,48,56)和齿圈(42,50,58)，借助于所述输出轴能驱动机动车的至少一个车轮(14)，设有至少一个切换元件(70)，借助于该切换元件能将所述行星齿轮组(32,34,36)中的第一行星齿轮组的齿圈(42)固定在壳体(30)上，第一行星齿轮组(32)的齿圈(42)永久以不能相对转动的方式接合至所述行星齿轮组(32,34,36)中的第二行星齿轮组的太阳轮(46)，第二行星齿轮组(34)的齿圈(50)永久以不能相对转动的方式接合至第一行星齿轮组(32)的行星齿轮架(40)，第三行星齿轮组(36)的太阳轮(54)永久以不能相对转动的方式接合至第二行星齿轮组(34)的齿圈(50)并且永久以不能相对转动的方式接合至输出轴(68)。(The invention relates to a transmission (26) for an electric drive (10) of a motor vehicle, comprising a housing (30), three planetary gear sets (32,34,36) arranged in the housing (30), an input shaft (64) which can be driven by a rotor (20) of an electric machine (12), an output shaft (68) which each have a sun gear (38,46,54), a planet gear carrier (40,48,56) and a ring gear (42,50,58), by means of which at least one wheel (14) of the motor vehicle can be driven, at least one shift element (70) being provided, by means of which the ring gear (42) of a first of the planetary gear sets (32,34,36) can be fixed to the housing (30), the ring gear (42) of the first planetary gear set (32) being permanently coupled in a rotationally fixed manner to the planetary gear set (32), 34,36), the ring gear (50) of the second planetary gear set (34) being permanently engaged in a relatively non-rotatable manner to the planet carrier (40) of the first planetary gear set (32), the sun gear (54) of the third planetary gear set (36) being permanently engaged in a relatively non-rotatable manner to the ring gear (50) of the second planetary gear set (34) and being permanently engaged in a relatively non-rotatable manner to the output shaft (68).)

1. A transmission (26) for an electric drive (10) of a motor vehicle, having a housing (30), three planetary gear sets (32,34,36) arranged in the housing (30), an input shaft (64) which can be driven by a rotor (20) of an electric machine (12), an output shaft (68) which each have a sun gear (38,46,54), a planet gear carrier (40,48,56) and a ring gear (42,50,58), by means of which at least one wheel (14) of the motor vehicle can be driven, wherein:

-at least one shift element (70) is provided, by means of which the ring gear (42) of a first of the planetary gear sets (32,34,36) can be fixed to the housing (30),

-the ring gear (42) of a first planetary gear set (32) is permanently joined in a relatively non-rotatable manner to the sun gear (46) of a second of said planetary gear sets (32,34, 36);

-the ring gear (50) of the second planetary gear set (34) is permanently joined in a relatively rotationally fixed manner to the planet carrier (40) of the first planetary gear set (32);

it is characterized in that the utility model is characterized in that,

-the sun gear (54) of the third planetary gear set (36) is permanently coupled to the ring gear (50) of the second planetary gear set (34) in a relatively non-rotatable manner and is permanently coupled to the output shaft (68) in a relatively non-rotatable manner,

-a second shift element (72) is provided, by means of which the planet carrier (48) of the second planetary gear set (34) can be fixed to the housing (30),

-the sun gear (38) of the first planetary gear set (32) is permanently coupled in a relatively non-rotatable manner to the input shaft (64),

-the planet carrier (56) of the third planetary gear set (36) is permanently connected or connectable in a relatively non-rotatable manner to the planet carrier (48) of the second planetary gear set (34).

2. Transmission (26) according to claim 1, characterized in that the switching element (70) is designed as a friction-fit clutch.

3. Transmission (26) according to claim 1 or 2, characterized in that the second shift element (72) is designed as a form-fitting clutch.

4. Transmission (26) according to one of the preceding claims, characterized in that a further shift element (74) is provided, by means of which the ring gear (58) of the third planetary gear set (36) can be fixed to the housing (30).

5. Transmission (26) according to claim 4, characterized in that the further shift element (74) is designed as a form-fitting clutch.

6. A transmission (26) according to one of the preceding claims, wherein a clutch element (76) is provided, by means of which the planet carrier (56) of the third planetary gear set (36) can be brought into engagement with the planet carrier (48) of the second planetary gear set (34).

7. The transmission (26) according to claim 6, wherein the ring gear (58) of the third planetary gear set (36) is permanently non-rotatably coupled to the housing (30).

8. Transmission (26) according to claim 6 or 7, characterized in that the clutch member (76) is designed as a form-fitting clutch.

9. Transmission (26) according to one of the preceding claims, wherein the third planetary gear set (36) is arranged radially outside the second planetary gear set (34) and/or the second planetary gear set (34) and the third planetary gear set (36) are arranged in one plane.

10. An electric drive (10) for a motor vehicle, having at least one electric machine (12) with a rotor (20) and a transmission (26), having:

-a housing (30);

-three planetary gear sets (32,34,36) disposed in the housing (30), each having a sun gear (38,46,54), a planet gear carrier (40,48,56) and a ring gear (42,50, 58);

-an input shaft (64) drivable by a rotor (20) of the electric machine (12);

-an output shaft (68) by means of which at least one wheel (14) of a motor vehicle can be driven;

-at least one shift element (70) by means of which a ring gear (42) of a first of the planetary gear sets (32,34,36) can be fixed to a housing (30);

wherein the content of the first and second substances,

-the ring gear (42) of a first planetary gear set (32) is permanently joined in a relatively non-rotatable manner to the sun gear (46) of a second of said planetary gear sets (32,34, 36);

-the ring gear (50) of the second planetary gear set (34) is permanently coupled in a relatively non-rotatable manner to the planet carrier (40) of the first planetary gear set (32);

it is characterized in that the utility model is characterized in that,

-the sun gear (54) of the third planetary gear set (36) is permanently coupled to the ring gear (50) of the second planetary gear set (34) in a relatively non-rotatable manner and is permanently coupled to the output shaft (68) in a relatively non-rotatable manner,

-a second shift element (72) is provided, by means of which the planet carrier (48) of the second planetary gear set (34) can be fixed to the housing (30),

-the sun gear (38) of the first planetary gear set (32) is permanently coupled in a relatively non-rotatable manner to the input shaft (64),

-the planet carrier (56) of the third planetary gear set (36) is permanently connected or connectable in a relatively non-rotatable manner to the planet carrier (48) of the second planetary gear set (34).

11. The electric power transmission apparatus (10) according to claim 10, wherein the half shaft (16) extending to the wheel (14) of the motor vehicle is arranged coaxially with the central axis of rotation (22) of the transmission (26).