US 12,255,027 B2
Electrolytic capacitor
Takayuki Matsumoto, Saga (JP); and Nobuhiro Tanigaki, Saga (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 18/254,152
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Dec. 20, 2021, PCT No. PCT/JP2021/047002
§ 371(c)(1), (2) Date May 23, 2023,
PCT Pub. No. WO2022/138556, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-217858 (JP), filed on Dec. 25, 2020.
Prior Publication US 2024/0006128 A1, Jan. 4, 2024
Int. Cl. H01G 9/012 (2006.01); H01G 9/10 (2006.01); H01G 9/15 (2006.01)
CPC H01G 9/012 (2013.01) [H01G 9/10 (2013.01); H01G 9/15 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electrolytic capacitor having a bottom surface and an upper surface opposite to the bottom surface, the electrolytic capacitor comprising:
a capacitor element including an anode lead;
an anode lead terminal and a cathode lead terminal each electrically connected to the capacitor element; and
outer packaging resin disposed around the capacitor element, wherein:
the cathode lead terminal includes a cathode terminal and two cathode anchor portions, the cathode terminal having an exposed surface exposed from the bottom surface, the two cathode anchor portions each extending from the cathode terminal to be embedded in the outer packaging resin,
the cathode terminal has two end sides each being along a longitudinal direction of the anode lead,
each of the two cathode anchor portions includes a cathode upright portion, a first extension portion, and a second extension portion, the cathode upright portion rising from a corresponding one of the two end sides of the cathode terminal toward the upper surface, the first extension portion extending from the cathode upright portion, the second extension portion extending from the first extension portion,
the first extension portion is bent from an upper end of the cathode upright portion,
the second extension portion rises toward the upper surface,
the first extension portion of one of the two cathode anchor portions and the first extension portion of another one of the two cathode anchor portions extend away from each other, and
the second extension portion of the one of the two cathode anchor portions and the second extension portion of the another one of the two cathode anchor portions are provided to sandwich the capacitor element in a direction perpendicular to the longitudinal direction of the anode lead.