To provide an axle driving device that drives an axle, which is configured so that a motor, a speed reducer, and a differential gear are arranged therein.SOLUTION: An axle driving device (20) comprises: left and right axles (13 and 14) connected to left and right wheels of a vehicle respectively; a cylindrical rotor (31) comprising a magnet part (34) having a plurality of magnetic poles; a cylindrical stator (36) having coils (37A and 37B) in a plurality of phases arranged to oppose to the magnet part; a speed reducer (50) that reduces speed of rotation of the rotor and transmits the rotation to the left and right axles; and a differential gear (70) that absorbs a difference in rotation between the left and right axles. The speed reducer and the differential gear are arranged inside in a radial direction with respect to the rotor and the stator, and the speed reducer and the differential gear are arranged in a range of the rotor and the stator, in an axis direction of the rotor and the stator, where the speed reducer and the differential gear are lined up in the axis direction.SELECTED DRAWING: Figure 3
【課題】車軸を駆動する車軸駆動装置において、モータと減速機とデファレンシャルギアとを配置する具体的構成を提供する。【解決手段】車軸駆動装置(20)は、車両の左右の車輪にそれぞれ接続される左右の車軸(13,14)と、複数の磁極を有する磁石部(34)を備えた円筒状のロータ(31)と、磁石部に対向して配置された複数相のコイル(37A,37B)を有する円筒状のステータ(36)と、ロータの回転を減速して左右の車軸に伝達する減速機(50)と、左右の車軸の回転差を吸収するデファレンシャルギア(70)と、を備える。ロータ及びステータに対して径方向内側に、減速機及びデファレンシャルギアが配置され、ロータ及びステータの軸方向において、ロータ及びステータの範囲内に減速機及びデファレンシャルギアが配置され、減速機とデファレンシャルギアとが軸方向に並んでいる。【選択図】 図3
AXLE DRIVING DEVICE
車軸駆動装置
26.07.2024
Patent
Elektronische Ressource
Japanisch
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02K Dynamoelektrische Maschinen , DYNAMO-ELECTRIC MACHINES |