US 12,224,130 B2
Film capacitor
Senichi Ozasa, Nishinomiya (JP); Kimiaki Kikuchi, Nishinomiya (JP); and Satoru Jogan, Nagaokakyo (JP)
Assigned to MURATA MANUFACTURING CO., LTD., Nagaokakyo (JP)
Filed by Murata Manufacturing Co., Ltd., Nagaokakyo (JP)
Filed on Jul. 30, 2021, as Appl. No. 17/389,997.
Application 17/389,997 is a continuation of application No. PCT/JP2019/044694, filed on Nov. 14, 2019.
Claims priority of application No. 2019-020504 (JP), filed on Feb. 7, 2019.
Prior Publication US 2021/0358693 A1, Nov. 18, 2021
Int. Cl. H01G 4/32 (2006.01); H01G 4/005 (2006.01); H01G 4/018 (2006.01); H01G 4/33 (2006.01)
CPC H01G 4/32 (2013.01) [H01G 4/005 (2013.01); H01G 4/018 (2013.01); H01G 4/33 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A film capacitor comprising:
a capacitor element including one or more wound or laminated metallized films, each metallized film including a dielectric resin film and a metal layer on one surface of the dielectric resin film, wherein the dielectric resin film contains a curable resin as a main component thereof;
a thermoplastic resin cover covering an outer surface of the capacitor element in a direction in which layers of the dielectric resin film are laminated with the metal layer therebetween; and
an exterior body covering an outer periphery of the capacitor element and an outer surface of the cover, wherein
the thermoplastic resin cover is a wound film that is wound around the outer surface of the capacitor element, and
the wound film has at least one surface that is a roughened surface.