LED socket and replaceable LED assemblies

• US 7,549,786 B2
• Filed: 12/21/2006
• Issued: 06/23/2009
• Est. Priority Date: 12/01/2006
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Higley, Robert Edward, Hafezi, Faramarz
• Primary Examiner(s): TON, ANABEL
• Application Number:
  US11/614,261
• Publication Number:
  US 20080130275A1
• Time in Patent Office: 915 Days
• Field of Search: 362/800, 362/249, 362/655, 362/640, 362/646
• US Class Current: 362/646
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21L 4/027 the light sources being a LED
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 19/004 by deformation of parts or snap action mountings, e.g. using clips
• CPC Class Codes: F21V 19/04 with provision for changing light source, e.g. turret auxiliary devices for cleaning, placing, or removing incandescent lamps H01K3/32, fluorescent lamps H01J9/006
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01R 13/24 resilient; resiliently-mounted
• CPC Class Codes: H01R 13/7175 Light emitting diodes (LEDs)
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

Socket arrangements for releasably mounting LEDs and light fixtures or assemblies employing such sockets are described. The socket arrangements facilitate the replacement of LEDs to replace an original LED with a brighter replacement, to change the color of the LED, to replace a single LED with a multiple chip LED, to replace a damaged or burned out LED with a new one, or the like. In further assemblies with plural LEDs, the use of ready release sockets facilitates selective replacement of an LED or LEDs and greatly enhances the flexibility of such units.

Claims

1. A socket for releasably mounting an LED lamp comprising an LED chin mounted on a mounting substrate having electrical contacts. the socket comprising:

socket power contacts for contacting the electrical contacts on the mounting substrate of the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said electrical contacts during operation and for allowing the LED lamp to be readily removed and replaced by hand when it is desired to replace the LED lamp, wherein said socket power contacts are point contacts.

3. The socket of claim 1 wherein the spring biased tray has an inner dimension slightly greater than an outer dimension of a base of the LED lamp.

4. The socket of claim 1 wherein said socket has abase having substantially the same dimensions as a bottom surface of the LED lamp.

6. The socket of claim 1 further comprising a releasable locking mechanism.

8. The socket of claim 1 wherein the LED chip is mounted on a mounting substrate and said socket power contacts are arranged to make electrical contact with lamp power contacts on a bottom surface of the mounting substrate.

9. The socket of claim 1 wherein the LED lamp includes multiple LED chips and said socket has socket power contacts corresponding to electrical contacts of said multiple LED chips.

2. A socket for releasably mounting an LED lamp comprising an LED chip mounted on a mounting substrate having electrical contacts. the socket comprising:

socket power contacts for contacting the electrical contacts on the mounting substrate of the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said electrical contacts during operation and for allowing the LED lamp to be readily removed and replaced by hand when it is desired to replace the LED lamp, wherein said mechanism for maintaining said socket power contacts in electrical contact with said lamp power contacts comprises a spring biased tray which can be depressed with finger pressure to replace the LED lamp, and which when not depressed provides a spring force to bias said socket power contacts against the lamp power contacts of an LED lamp in said tray.

5. A socket for releasably mounting an LED lamp comprising an LED chip mounted on a mounting substrate having electrical contacts. the socket comprising:

socket power contacts for contacting the electrical contacts on the mounting substrate of the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said electrical contacts during operation and for allowing the LED lamp to be readily removed and replaced by hand when it is desired to replace the LED lamp, wherein the socket power contacts and the mechanism for maintaining are combined in an integrated contact and bias mechanism.

17. The socket of claim 5 further comprising a releasable locking mechanism.

18. The socket of claim 5 wherein the LED chip is mounted on a mounting substrate and said socket power contacts are arranged to make electrical contact with lamp power contacts on a bottom surface of the mounting substrate.

19. The socket of claim 5 wherein the LED lamp includes multiple LED chips and said socket has socket power contacts corresponding to electrical contacts of said multiple LED chips.

7. A socket for releasably mounting an LED lamp comprising an LED chip mounted on a mounting substrate having electrical contacts, the socket comprising:

socket power contacts for contacting the electrical contacts on the mounting substrate of the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said electrical contacts during operation and for allowing the LED lamp to be readily removed and replaced by hand when it is desired to replace the LED lamp, wherein the LED chip is mounted on a mounting substrate and said socket power contacts are arranged to make electrical contact with lamp power contacts on a top surface of the mounting substrate.

10. An LED lighting module comprising:

a printed circuit board; and

a plurality of LED lamp sockets physically mounted and electrically connected on the printed circuit board, wherein the LED lamp sockets provide a releasable mechanism for the ready insertion and removal of LED lamps comprising LED chips mounted on mounting substrates in the LED lamp sockets without the use of heat, solder, or physical force beyond normal hand pressure, wherein each LED lamp socket has electrical contacts for making electrical contact with electrical contacts of an LED lamp inserted therein and a spring bias mechanism for biasing LED lamp contacts against the LED lamp socket electrical contacts when the LED lamp is inserted therein.

11. An LED lighting module comprising:

a printed circuit board; and

a plurality of LED lamp sockets physically mounted and electrically connected on the printed circuit board, wherein the LED lamp sockets provide a releasable mechanism for the ready insertion and removal of LED lamps comprising LED chins mounted on mounting substrates in the LED lamp sockets without the use of heat, solder, or physical force beyond normal hand pressure, wherein each LED lamp has a bottom footprint and each LED lamp socket has a bottom footprint substantially the same as the LED lamp.

12. The LED lighting module of claim 11 further comprising an LED lamp inserted in each LED lamp socket.

13. The LED lighting module of 11 wherein each LED lamp socket includes a tray to receive an LED lamp.

14. A portable personal LED light with a replaceable LED lamp comprising:

a power switch for turning power on and off;

a readily releasable LED lamp socket;

an LED lamp comprising an LED chin mounted on a mounting substrate; and

a housing wherein the LED lamp may be readily removed and replaced by hand, wherein the readily releasable LED lamp socket comprises;

socket power contacts for contacting lamp power contacts on the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said lamp power contacts during operation and for allowing the LED lamp to be readily removed and replaced when it is desired to replace the LED lamp, and wherein said socket power contacts are point contacts.

15. A portable personal LED light with a replaceable LED lamp comprising:

a power switch for turning rower on and off;

a readily releasable LED lamp socket;

an LED lamp comprising an LED chip mounted on a mounting substrate; and

a housing wherein the LED lamp may be readily removed and replaced by hand, wherein the readily releasable LED lamp socket comprises;

socket power contacts for contacting lamp power contacts on the LED lamp and supplying power to the LED chip; and

a mechanism for maintaining said socket power contacts in electrical contact with said lamp power contacts during operation and for allowing the LED lamp to be readily removed and replaced when it is desired to replace the LED lamp, and wherein said mechanism for maintaining said socket power contacts in electrical contact with said lamp power contacts comprises a spring biased tray which can be depressed with finger pressure to replace the LED lamp, and which when not depressed provides a spring force to bias said socket power contacts against the lamp power contacts of an LED lamp in said tray.

16. The battery powered portable light of claim 15 wherein the spring biased tray has an inner dimension slightly greater than an outer dimension of a base of the LED lamp.