公开(公告)号：US10741338B1

公开(公告)日：2020-08-11

申请号：US16536683

申请日：2019-08-09

申请人： XJ ELECTRIC CO.,LTD ,  XJ GROUP CORPORATION

发明人： Junwei Wang ,  Bangtian Wang ,  Pengcheng Sun ,  Weiguo Yang ,  Siliang Yang ,  Ran Wei ,  Xiaopeng Li ,  Xiaoyu Deng ,  Libo Zuo ,  Jinfang Wang ,  Liping Shi ,  Miao Wang

IPC分类号： H01H33/662 ,  H01H1/38 ,  H02B11/167 ,  H01H1/62

摘要： Provided is a handcart circuit breaker and a contact device thereof including a contact arm and a moving contact. Inner walls of a cylindrical contact finger base in axial direction respectively have a contact finger groove with a spring contact finger for plugging the contact arm and a fixed contact; a rear of the contact finger base sleeves with a front of the contact arm having a positioning groove larger than a fitting end of the support pin, the contact finger base has support pins extending into the contact finger base; a diameter of a circle corresponding to the fitting end of each support pin is larger than a diameter of a circle corresponding to a bottom of each positioning groove; the contact finger base connects with the contact arm and an elastic support structure is arranged between the contact arm and the inner wall of the contact finger base.