Patent ID: 6064563
Filing Date: 2000-05-16
Classification: H01G

Abstract:
An electrolytic capacitor comprising:a capacitor element impregnated with electrolyte and having a pair of lead-out lead plates;a cylindrical metallic casing including a bottom, a curled end forming a mouth, and a transverse drawing portion at said mouth, said capacitor element being accommodated in said casing;a lid for enclosing said mouth of said casing, said lid having a peripheral portion;a pair of metallic rivets secured to and extending through said lid, each of said rivets having a first end and a second end;a pair of external connection terminals, each of said terminals being connected to said first end of one of said rivets;a jig for gripping said second end of each of said rivets;a fixing member formed of resin and having a pair of through-holes, at least one communication hole for allowing communication between said capacitor element and said lid, a peripheral portion positioned on said transverse drawing portion of said casing, and a jig opening for allowing insertion of said jig, said peripheral portion of said lid being positioned on said peripheral portion of said fixing member, said second end of each of said rivets being positioned in one of said through-holes so as to project from said fixing member in a direction away from said lid, said second end of each of said rivets being metallically joined to one of said lead plates, wherein each of said through-holes has an area smaller than an area of each of said lead plates at a point where each of said rivets is connected to one of said lead plates; andpacking positioned on said peripheral portion of said lid, wherein said packing, said peripheral portion of said lid, and said peripheral portion of said fixing member are hermetically secured to said casing between said transverse drawing portion of said casing and said curled end of said casing.