DRIVE TRANSMISSION DEVICE FOR VEHICLE

• Main Authors: TSUJIMOTO KATSUHIRO, NONAKA NORIAKI, FUJIKAWA MIKA, YAMAGUCHI MASAYA, ISONO HIROSHI
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2023
• Subjects: BLASTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

To form a smaller drive transmission device for a vehicle comprising a rotor shaft internally rotating with a rotor of a rotary electric machine, a first output member drivingly connected to a first wheel, a second output member drivingly connected to a second wheel, and a differential gear mechanism connected to the rotor shaft.SOLUTION: A differential gear mechanism 3 is a planetary gear mechanism comprising a first rotation element E1, a second rotation element E2, and a third rotation element E3, where the differential gear mechanism is arranged on a radially inner side R1 with respect to a hollow cylindrical rotor shaft 10 and overlaps a rotor 81 when viewed in a radial direction. Of the three rotation elements, one is a sun gear S31, one is a carrier C3, and the other one is a sun gear S32 separate from the sun gear S31 or a carrier separate from the carrier C3.SELECTED DRAWING: Figure 1 【課題】回転電機のロータと一体的に回転するロータ軸と、第１車輪に駆動連結される第１出力部材と、第２車輪に駆動連結される第２出力部材と、ロータ軸に連結された差動歯車機構とを備えた車両用駆動伝達装置を、より小型に構成する。【解決手段】差動歯車機構３は、第１回転要素Ｅ１、第２回転要素Ｅ２、第３回転要素Ｅ３を備えた遊星歯車機構であり、中空筒状のロータ軸１０に対して、径方向内側Ｒ１であって、径方向視でロータ８１と重複する位置に配置されている。３つの回転要素のうち、１つはサンギヤＳ３１、１つはキャリヤＣ３、残り１つはサンギヤＳ３１とは別のサンギヤＳ３２又はキャリヤＣ３とは別のキャリヤである。【選択図】図１