Auto-cling leads of electric device

• US 20090161333A1
• Filed: 12/19/2007
• Published: 06/25/2009
• Est. Priority Date: 12/19/2007
• Status: Abandoned Application

• Current Assignee: Kevin Yang
• Original Assignee: Kevin Yang
• Inventors: Yang, Kevin
• Application Number:
  US12/002,910
• Publication Number:
  US 20090161333A1
• Time in Patent Office: Days
• US Class Current: 361/813
• CPC Class Codes: H05K 2201/10166 Transistor
• CPC Class Codes: H05K 2201/10651 Component having two leads, e.g. resistor, capacitor
• CPC Class Codes: H05K 2201/10757 Bent leads
• CPC Class Codes: H05K 2201/10878 Means for retention of a lead in a hole
• CPC Class Codes: H05K 3/308 Adaptations of leads connectors to printed circuits H01R12/00
• CPC Class Codes: H05K 3/3447 Lead-in-hole components H05K3/3415 takes precedence
• CPC Class Codes: H05K 7/02 Arrangements of circuit components or wiring on supporting structure

Abstract

Automatic clinging leads of an electric device are provided for an unassisted mounting on thru-holes of a printed circuit board. Each of the leads of the device has three continuous right-angled sections including a longitudinal proximal end section extending from the terminal region of the electric element, a latitudinal distal end section extending at right angle with respect to the proximal end section, and a bent midsection for connecting the proximal and distal end sections at the diametrically opposite right angle to the angle between the proximal and distal end sections to provide a generally laterally extending lead with three alternating bends between the three sections. The device leads can be inserted into the thru-holes of the circuit board through a 90-degree swivel motion that causes a secure flush cling of the leads and in turn a low profile mounting of the device onto the circuit board around thru-holes.

Claims

1. An electric device having automatic clinging leads for an mounting on thru-holes of a printed circuit board comprising:

an electric element extending in a longitudinal direction and having a predetermined conduction function;

multiple terminal regions formed on the electric element for making electrical connections of the same with another element on the circuit board; and

conductive leads each having three continuous right-angled sections including a longitudinal proximal end section extending from the terminal region of the electric element, a predetermined length of latitudinal distal end section extending at right angle with respect to the proximal end section, and a bent midsection for connecting the proximal and distal end sections at the diametrically opposite right angle to the angle between the proximal and distal end sections meeting at a cross of their imaginary projection lines to provide a generally laterally extending lead with three alternating bends between the three sections, whereby an insertion of the leads through a 90-degree swivel motion into the thru-holes of the circuit board causes a secure cling of the leads and in turn the electric device onto the circuit board around the thru-holes.

2. The automatic clinging leads of an electric device of claim 1, wherein leads are in a blade shape and have a flat cross section.

3. The automatic clinging leads of an electric device of claim 1, wherein the leads are in a rod shape and have a round cross section.

4. An electric device having clinging leads for mounting on thru-holes of a printed circuit board comprising:

an electric element extending in a longitudinal direction and having a predetermined conduction function;

multiple terminal regions formed on the electric element for making electrical connections of the same with another element on the circuit board; and

conductive leads each having three continuous right-angled sections comprising;

a first straight section of a flat shank extending from first section via a first 90-degree bend to make a flat engagement with the circuit board at its dielectric upper surface;

second straight section;

a vertical third straight section of each conductive lead penetrating a hole interconnecting the shank via a second 90-degree bend;

and a fourth straight section of a horizontal pin via a third 90-degree bend,

wherein the spaced second and third bends along with the connecting straight section work in unity as a pivoting means when inserting the electric element into the hole during assembly.

5. The automatic clinging leads of an electric device of claim 4, wherein leads are in a blade shape and have a flat cross section.

6. The automatic clinging leads of an electric device of claim 4, wherein the leads are in a rod shape and have a round cross section.

7. The automatic clinging leads of an electric device of claim 4, wherein the electric device further comprises solder attaching the device to the circuit board, wherein the solder comprises a bead shape and attaches between the circuit board and the fourth straight section, wherein the solder makes electrical connection between the circuit board and the fourth straight section.

8. The automatic clinging leads of an electric device of claim 7, wherein leads are in a blade shape and have a flat cross section.

9. The automatic clinging leads of an electric device of claim 7, wherein the leads are in a rod shape and have a round cross section.

10. The automatic clinging leads of an electric device of claim 7, wherein the electric device is a transistor, capacitor or transformer.

11. An electric device having clinging leads for mounting on thru-holes of a printed circuit board comprising:

an electric element extending in a longitudinal direction and having a predetermined conduction function;

multiple terminal regions formed on the electric element for making electrical connections of the same with another element on the circuit board; and

conductive leads each having three continuous right-angled sections that form a stepped profile conforming to a through hole of the circuit board.

12. The automatic clinging leads of an electric device of claim 11, wherein leads are in a blade shape and have a flat cross section.

13. The automatic clinging leads of an electric device of claim 11, wherein the leads are in a rod shape and have a round cross section.

14. The automatic clinging leads of an electric device of claim 11, wherein the electric device is a transistor, capacitor or transformer.