LED lamp set and lighting bulb of the same

• US 8,247,976 B2
• Filed: 04/20/2010
• Issued: 08/21/2012
• Est. Priority Date: 12/30/2009
• Status: Expired due to Fees

• Current Assignee: Wei-Lin Hsu
• Original Assignee: Sheng-Yi Chuang
• Inventors: Chuang, Sheng-Yi
• Primary Examiner(s): Le, Don
• Application Number:
  US12/763,610
• Publication Number:
  US 20110156583A1
• Time in Patent Office: 854 Days
• Field of Search: 315/32, 315/51, 315/63, 315/192, 315/294, 315/324, 362/249.02, 313/25, 313/33
• US Class Current: 315/51
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2107/60 on stacked substrates
• CPC Class Codes: F21Y 2113/00 Combination of light sources
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED lamp set and a lighting bulb used thereon are provided. The LED lamp set comprises a plurality of circuit boards, a support post, an ignition circuit and two conducting wires. The circuit boards are spaced from each other in a parallel manner and mounted on the support post in series. Each of the circuit boards is connected to a plurality of LEDs surrounding the support post. The LEDs have a plurality of light emission surfaces tilted outwards. The ignition circuit receives an input power and transforms the input power to an ignition power. The two conducting wires have one end connected to the ignition circuit and linked to the circuit boards in series to ignite the LEDs. The LED lamp set further is coupled with a socket and a lamp shade to form a profile of a lighting bulb compatible to the socket of the ordinary lighting bulbs.

Claims

1. An LED lamp set, comprising:

at least one support post;

a plurality of circuit boards spaced from each other in a substantially parallel manner and coupled on the support post in series, each of the circuit boards being linked to a plurality of LEDs which surround the support post;

the LEDs including a plurality of light emission surfaces which form a non-vertical inclined angle with the surfaces of the circuit boards;

an ignition circuit receiving an input power and transforming the input power to an ignition power; and

at least two conducting wires connecting to the circuit boards in series and including one end linking to the ignition circuit to conduct the ignition power to light the LEDs.

2. The LED lamp set of claim 1, wherein the support post is coupled on the ignition circuit.

3. The LED lamp set of claim 1, wherein the LEDs are tilted away from the center of the circuit boards.

4. The LED lamp set of claim 3, wherein one of the circuit boards is connected to a distal end of the support post and includes at least one LED on the surface thereof among the LEDs surrounding the circuit board.

5. The LED lamp set of claim 1, wherein the support post runs through all the circuit boards.

6. The LED lamp set of claim 1, wherein the support post is encased by a holder.

7. The LED lamp set of claim 6, wherein the holder is integrally formed by injection of plastics to encase the support post.

8. The LED lamp set of claim 7, wherein the plastics is thermo-conductive plastics.

9. The LED lamp set of claim 6, wherein the holder encases the ignition circuit together.

10. A lighting bulb including the LED lamp set of claim 4, comprising:

an LED lamp set;

a socket including a plurality of conducting rims to conduct an input power to the LED lamp set; and

a lamp shade coupling with the socket to form a shell to cover the LED lamp set.

11. The lighting bulb of claim 10, wherein the support post is encased by a holder.

12. The lighting bulb of claim 11, wherein the holder is integrally formed by injection of plastics to encase the support post.

13. The lighting bulb of claim 12, wherein the plastics is thermo-conductive plastics.

14. The lighting bulb of claim 11, wherein the holder encases the ignition circuit together.