公开(公告)号：US11156289B2

公开(公告)日：2021-10-26

申请号：US16393641

申请日：2019-04-24

申请人： Johnson Electric International AG

发明人： Weixing Mao ,  Fan Ouyang ,  Chuan Liu ,  Long Yan ,  Ming Zhang ,  Zude Bai ,  Selvakumar Periyasamy

IPC分类号： F16H57/027 ,  F16H63/30 ,  F16H57/025

摘要： A transmission shell is applied to an actuator, and an accommodating space for receiving a transmission assembly is formed in the transmission case, the transmission shell is provided with a first ventilation structure, and the first ventilation structure includes a venting hole and a blocking wall disposed around the venting hole; the venting hole is in gas communication with the accommodating space; the blocking wall is disposed on an outer periphery of the venting hole to form a buffering chamber communicating with the venting hole, and an opening is provided at an end away from the venting hole. The present disclosure also provides a transmission case and an actuator using the above transmission shell. The venting hole is effectively waterproof and moisture-proof without requiring a sealing element, and are simple in structure, easy to manufacture, and low in cost.