公开(公告)号：US10943737B2

公开(公告)日：2021-03-09

申请号：US16248833

申请日：2019-01-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hidekazu Matsuoka ,  Wataru Hitomi ,  Toshihisa Miura

IPC: H01G4/32 ,  H01G4/18 ,  H01G4/38 ,  H01G4/224 ,  H01G4/228

Abstract: Film capacitor is formed by winding first metal layer, first film, second metal layer, and second film that are in a stacked state in this order. In film surfaces of first and second films, an orientation angle α of first film and an orientation angle β of second film are different in sign from each other when a sign of the orientation angle which represents rotation from reference direction RD to one of both end surfaces is defined to be positive, and the sign of the orientation angle which represents rotation from reference direction RD to another of both end surfaces is defined to be negative. Here, the orientation angle is defined by an acute angle between an orientation main axis MA between reference direction RD parallel to first and second end surfaces when portions of first and second films facing each other through second metal layer are viewed in a direction perpendicular to the film surfaces.