Solderless circuit board component

• US 4,109,295 A
• Filed: 08/01/1977
• Issued: 08/22/1978
• Est. Priority Date: 08/01/1977
• Status: Expired due to Term

• Current Assignee: NCR Corporation (NCR Voyix Corporation)
• Original Assignee: NCR Corporation (NCR Voyix Corporation)
• Inventors: Rostek, Paul M., Baeyertz, John F.
• Primary Examiner(s): Smith, Jr., David
• Application Number:
  US05/820,654
• Time in Patent Office: 386 Days
• Field of Search: 361/401, 361/406, 361/301, 361/302, 361/303, 361/306, 361/308, 361/309, 361/310, 339/17 C, 339/17 R, 339/95 R, 174/52 P, 174/52 PE, 338/317
• US Class Current: 361/762
• CPC Class Codes: H01G 2/06 specially adapted for mounting on a printed-circuit support
• CPC Class Codes: H01R 12/58 terminals for insertion into holes
• CPC Class Codes: H05K 1/184 Components including terminals inserted in holes through the printed circuit board and connected to printed contacts on the walls of the holes or at the edges thereof or protruding over or into the holes
• CPC Class Codes: H05K 2201/0373 Conductors having a fine structure, e.g. providing a plurality of contact points with a structured tool
• CPC Class Codes: H05K 2201/0919 Exposing inner circuit layers or metal planes at the side edge of the printed circuit board [PCB] or at the walls of large holes
• CPC Class Codes: H05K 2201/10583 Cylindrically shaped component; Fixing means therefore
• CPC Class Codes: H05K 2201/1059 Connections made by press-fit insertion
• CPC Class Codes: H05K 2201/10606 Permanent holder for component or auxiliary printed circuits mounted on a printed circuit board [PCB]
• CPC Class Codes: H05K 2201/10636 Leadless chip, e.g. chip capacitor or resistor
• CPC Class Codes: H05K 3/301 by means of a mounting structure H05K3/325 takes precedence
• CPC Class Codes: H05K 3/4046 using auxiliary conductive elements, e.g. metallic spheres, eyelets, pieces of wire
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product
• CPC Class Codes: Y10S 439/94 including provision for mechanical lifting or manipulation, e.g. for vacuum lifting

Abstract

A circuit board component, specifically a capacitor, which is configured to be machine-insertable into apertures of a circuit board to make a solderless electrical connection to electrical conductors positioned on and in the circuit board. The component is a cylindrical element which has portions of its outer surface affixed with an electrically conductive material which material is formed with a plurality of serrations. The serrations are designed to cut through and to make a force fit, gas tight, seal with the walled portions and the electrical conductors of a circuit board. The electrically conductive material also either forms a part of the component, such as capacitor plates and/or provides a contact surface for the connecting of an internally-mounted electrical component. An indexing means positioned on one end of the cylindrical element provides a mechanical indexing to insure the correct orientation of the component with regard to corresponding electrical contacts on the circuit board. A flange member extending from one end of the cylindrical element provides a stop in order to insure proper alignment of the component when the component is inserted into a circuit board by automatic means.

Claims

1. A circuit board component comprising:

a cylindrical body element;

an electrical component mounted within said cylindrical body element;

electrically conductive material positioned on portions of the outer surfaces of said body element;

leads connecting said electrical component to said electrical conductive material through said cylindrical body element; and

serrations in the electrically conductive material for engaging a contact area on a circuit board.

2. The circuit board component according to claim 1 and further comprising:

a flange member extending from one end of said cylindrical body element to provide a stop for said component when said component is inserted into a hole in a circuit board.

3. The circuit board component according to claim 1 and further comprising:

an index key affixed to one end of said cylindrical body element for aligning said conductive material with corresponding electrical conductors on a circuit board.

4. A circuit board component comprising:

a cylindrical body element, said cylindrical body element formed from a dielectric material so as to provide the dielectric for a capacitor;

electrically conductive material positioned on portions of the outer surface of said cylindrical body element, said electrically conductive material forming the plates of a capacitor, said conductive material having serrations therein for providing a forced contact fit of said component within a circular opening in a circuit board;

a flange extending from one end of said cylindrical body element to provide a stop for said component when said component is inserted into a hole in a circuit board; and

an index key affixed to one end of said component for aligning said electrically conductive material with associated electrical conductors on a circuit board.

5. A circuit board component comprising:

a cylindrical body element, wherein said body element is formed from an insulating material so as to provide the dielectric for a capacitor;

electrically conductive material positioned on at least two separated apart portions of the outer surface of said body element, said conductive material forming the plates of said capacitor, and formed with serrations which run along the length of said cylindrical body element;

a flange extending from one end of said cylindrical body element for providing a stop for said component when said component is inserted into a circuit board; and

an index key affixed to one end of said cylindrical body element for aligning said electrically conductive material with corresponding electrical conductors on a circuit board.