Flexible circuit board with LED lighting

• US 20020149933A1
• Filed: 03/21/2002
• Published: 10/17/2002
• Est. Priority Date: 03/21/2001
• Status: Abandoned Application

• Current Assignee: LED Effects Incorporated (LED Holdings LLC), Super Vision International Incorporated
• Original Assignee: LED Effects Incorporated (LED Holdings LLC), Super Vision International Incorporated
• Inventors: Furry, Kevin A., Archer, Roy
• Application Number:
  US10/105,049
• Publication Number:
  US 20020149933A1
• Time in Patent Office: Days
• US Class Current: 362/234
• CPC Class Codes: F21S 4/24 of ribbon or tape form, e.g. LED tapes
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 19/0025 the fastening means engaging the conductors of the light source, i.e. providing simultaneous fastening of the light sources and their electric connections
• CPC Class Codes: F21V 19/004 by deformation of parts or snap action mountings, e.g. using clips
• CPC Class Codes: F21V 21/088 Clips; Clamps
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05K 1/189 characterised by the use of a flexible or folded printed circuit H05K3/326 takes precedence

Abstract

A lighting apparatus that includes a flexible circuit board having a plurality of conductive terminals and at least one electronic component attached thereto such that the lengths of the terminals and component are substantially perpendicular to the longitudinal axis of the circuit board. A plurality of light emitting elements, such as light emitting diodes (LED), is connected to the conductive terminals. The conductive terminals and corresponding LED leads may be located on one planar surface of the circuit board or may be distributed along both planar surfaces. Each one of a pair of the conductive terminals may be located on opposite surfaces of the circuit board so that the leads from an LED will straddle an upper edge of the circuit board. A method for installing a lighting apparatus includes providing a mounting means that will hold the flexible apparatus so that it is in a substantially upright position. The mounting means may include a plurality of slots so that the mounting means is flexible and conform to a variety of linear or non-linear shapes.

Claims

1. ) A lighting apparatus comprising:

a circuit board adapted to be flexed along a longitudinal axis, the circuit board adapted to receive an electrical current;

at least one conductive terminal disposed on the circuit board and adapted to receive at least a portion of the electrical current, the at least one conductive terminal having a longitudinal axis substantially transverse to the longitudinal axis of the circuit board to minimize stress on the at least one conductive terminal when the board is flexed; and

a light emitting element having at least one conductive lead, the light emitting element connected to and in electrical communication with the at least one conductive terminal.

2. ) The lighting apparatus of claim 1 further comprising:

means for mounting the circuit board to a support structure; and

means for connecting the circuit board to at least one of a power source and an electrical device.

3. ) The lighting apparatus of claim 1 further comprising:

an electrical component disposed on the circuit board and adapted to receive at least a portion of the electrical current, the electrical component having a longitudinal axis substantially transverse to the longitudinal axis of the circuit board to minimize stress on the electrical component when the board is flexed.

4. ) The lighting apparatus of claim 1 further comprising:

means for connecting the circuit board to a second circuit board.

5. ) The lighting apparatus of claim 2, the means for mounting comprising:

at least one aperture formed within the circuit board.

6. ) The lighting apparatus of claim 2, the means for mounting comprising:

a base section, the base section adapted to be flexed along a longitudinal axis to conform to a predetermined shape; and

means for securing the circuit board to the base section so the circuit board is fitted to the predetermined shape.

7. ) The lighting apparatus of claim 6 further comprising:

at least one notch formed within the base section for allowing the base section to be flexed.

8. ) The lighting apparatus of claim 6, the means for securing the circuit board to the base section comprising:

a first flexible arm extending substantially perpendicular from the base section; and

a second flexible arm extending substantially perpendicular from the base section, the first and second arms being in juxtaposition and adapted to receive a portion of the circuit board there between.

9. ) The lighting apparatus of claim 8 further comprising:

a first overhanging portion extending substantially perpendicular from a distal end of the first flexible arm; and

a second overhanging portion extending substantially perpendicular from a distal end of the second flexible arm, the first and second overhanging portions adapted to fit over an upper edge of the circuit board when secured between the first and second flexible arms.

10. ) The lighting apparatus of claim 1, the at least one conductive terminal comprising:

a first conductive lead disposed on a first planar surface of the circuit board; and

a second conductive lead disposed on the first planar surface.

11. ) The lighting apparatus of claim 10 wherein a distal end of the first conductive lead and a distal end of the second conductive lead are proximate an edge of the circuit board.

12. ) The lighting apparatus of claim 1, the at least one conductive terminal comprising:

a first conductive lead disposed on a first planar surface of the circuit board; and

a second conductive lead disposed on a second planar surface of the circuit board such that the light emitting element will straddle an edge of the circuit board when a pair of the at least one conductive lead of the light emitting element are connected to the first conducive lead and the second conductive lead of the at least one conductive terminal.

13. ) The lighting apparatus of claim 12 wherein a distal end of the first conductive lead and a distal end of the second conductive lead are proximate the edge of the circuit board.

14. ) The lighting apparatus of claim 3, the light-emitting element comprising a flat top light-emitting diode having a wide angle of at least about 60 degrees.

16. ) The lighting system of claim 15 further comprising:

at least one electrical component disposed on at least one of the plurality of circuit boards and adapted to receive at least a portion of the electrical current.

17. ) The lighting system of claim 15, the means for mounting comprising:

at least one aperture formed within the plurality of circuit boards; and

means for connecting at least one of the plurality of circuit boards to a power supply.

18. ) The lighting system of claim 15, the means for mounting comprising:

a base section adapted to be flexed along a longitudinal axis so it may conform to a predetermined shape; and

means for securing the plurality of circuit boards to the base section so the plurality of circuit boards conform to the predetermined pattern.

19. ) The lighting system of claim 15, at least one of the plurality of conductive terminals having a longitudinal axis substantially transverse to the longitudinal axis of the circuit board to minimize stress on the conductive terminal when the board is flexed.

20. ) The lighting system of claim 19 further comprising:

at least one electrical component disposed on at least one of the plurality of circuit boards and adapted to receive at least a portion of the electrical current, the electrical component having a longitudinal axis substantially transverse to the longitudinal axis of the circuit board to minimize stress on the electrical component when the board is flexed.

21. ) The lighting system of claim 18, the means for securing the plurality of circuit boards to the base section comprising:

a plurality of clips extending from the base section, each clip comprising a first flexible arm in juxtaposition with a second flexible arm wherein a portion of the plurality of circuit boards is secured between the first and second flexible arms.

22. ) The lighting system of claim 21 further comprising:

a first overhanging portion extending from a distal end of the first flexible arm; and

a second overhanging portion extending from a distal end of the second flexible arm, the first and second overhanging portions adapted to fit over an edge of the plurality of flexible circuit boards when secured by the flexible arms.

23. ) The flexible lighting system of claim 18, the means for mounting comprising a plurality of notches formed across the base section for flexing the mounting means along its longitudinal axis.

24. ) The flexible lighting system of claim 15, at least one of the plurality of conductive terminals having a longitudinal axis substantially transverse to the longitudinal axis of the circuit board to minimize stress on the plurality of conductive terminals when the board is flexed.

25. ) The flexible lighting system of claim 24 wherein at least one of the plurality of conductive terminals comprises a first conductive lead disposed on a first surface of one of the plurality of circuit boards and a second conductive lead disposed on a second surface of the circuit board;

and

at least one of the plurality of light emitting elements comprises a first lead connected to the first conductive lead and a second lead connected to the second conductive lead such that the first lead and the second lead of the light emitting element straddle an edge of one of the plurality of circuit boards.

27. ) The method of claim 26 further comprising the step of:

providing the means for mounting with a plurality of clips extending from a base section of the means for mounting, the plurality of clips adapted to securely hold the circuit board.

28. ) The method of claim 27 further comprising the step of:

forming each of the plurality of clips with a first flexible arm in juxtaposition with a second flexible arm.

29. ) The method of claim 26 further comprising the step of:

forming at least one notch within the base section of the mounting means so the mounting means may conform to a predetermined pattern.

30. ) The method of claim 26 further comprising the step of:

providing light emitting diodes as the light emitting elements; and

connecting a first lead of each diode to a corresponding terminal on one surface of the circuit board and a second lead of each diode to a corresponding terminal on the opposite surface of the circuit board so that the first lead and second lead straddle an upper edge of the circuit board.

31. ) The method of claim 26 further comprising the step of:

providing the circuit board so that it may be flexed to conform to a variety of shapes.

15. ) A lighting system comprising:

a plurality of circuit boards, each circuit board adapted to be flexed along a longitudinal axis and adapted to receive an electrical current;

means for mounting the plurality of circuit boards to a support structure;

a plurality of conductive terminals disposed on at least one of the plurality of circuit boards, at least one of the plurality of conductive terminals adapted to receive at least a portion of the electrical current;

means for connecting one of the plurality of circuit boards to another of the plurality of circuit boards; and

a plurality of light emitting elements connected to and in electrical communication with the plurality of conductive terminals.

26. ) A method for installing a lighting apparatus comprising the steps of:

providing a circuit board having a plurality of light emitting elements extending longitudinally from an upper edge of the circuit board;

providing a means for mounting the circuit board to a support surface;

affixing the means for mounting to the support surface; and

inserting the circuit board within the means for mounting such that a lower edge of the circuit board is proximate an upper surface of the mounting means and the circuit board is securely held in an upright position.