Rear-drive electric drive transmission device

The utility model discloses a rear-drive electric drive transmission device which comprises a planetary gear power dividing mechanism, a first shaft, a first rotor shaft and a second rotor shaft. The planetary gear power shunting mechanism comprises a first sun gear connected with the first shaft, a second sun gear, a planet carrier connected with the first rotor shaft, a first planetary gear which is rotatably arranged on the planet carrier and is meshed with the first sun gear, and a second planetary gear which is meshed with the second sun gear and synchronously rotates with the first planetary gear; the second sun gear is connected with the second shaft, and the second rotor shaft is sleeved on the second shaft. According to the rear-drive electric drive transmission device, the planetary gear mechanism serves as a power coupling mechanism, an efficient and energy-saving power dividing working mode is achieved, carrying and using of a rear-drive vehicle are achieved through reasonable arrangement of the m