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US 7,072,172 B2Granted
Solid electrolytic capacitor
AssigneeSanyo Electric Co., Ltd.
InventorsKazuhiro Kato, Kenichiro Matsuzaki
Life of this patent
Estimating the term…
Abstract
A solid electrolytic capacitor includes a capacitor element in which an anode lead protrudes from one end of an anode member. An anode lead frame is attached to the anode lead by welding. A contact resistance enlarging portion is formed on a junction face of the anode lead frame with the anode lead, the area over which the anode lead frame comes into contact with the anode lead being smaller than the portion other than the junction face.
Claims6
A solid electrolytic capacitor comprising:
- a capacitor element in which a plate-like anode lead protrudes from one end of an anode member, and a plate-like anode lead frame being laid on and attached to the anode lead by welding forming a portion for junction;
- wherein a contact resistance enlarging portion is formed on the anode lead frame at the portion for junction where a contact area over which the anode lead frame comes into actual contact with the anode lead being smaller than an area of the portion for junction.
A solid electrolytic capacitor comprising:
- a capacitor element in which a plate-like anode lead protrudes from one end of an anode member, and a plate-like anode lead frame being laid on and attached to the anode lead by welding forming a portion for junction;
- wherein a contact resistance enlarging portion is formed on the anode lead at the portion for junction where a contact area over which the anode lead comes into actual contact with the anode lead frame being smaller than an area of the portion for junction.
A solid electrolytic capacitor comprising:
- a capacitor element in which a plate-like anode lead protrudes from one end of an anode member, and a plate-like anode lead frame being laid on and attached to the anode lead by welding forming a portion for junction;
- wherein a contact resistance enlarging portion is formed at the portion for junction by forming a front end portion of the anode lead frame or the anode lead to an angular shape or a notched shape.
Dependencies are inferred from the claim text.