Heat dissipation structure for light bulb assembly

• US 8,764,251 B2
• Filed: 05/02/2012
• Issued: 07/01/2014
• Est. Priority Date: 05/02/2012
• Status: Expired due to Fees

• Current Assignee: Everspring Industry Co., Ltd.
• Original Assignee: Everspring Industry Co., Ltd.
• Inventors: Lien, Chen-Chun
• Primary Examiner(s): CARIASO, ALAN B
• Application Number:
  US13/462,436
• Publication Number:
  US 20130292106A1
• Time in Patent Office: 790 Days
• Field of Search: 362/294, 362/373, 313/45, 313/46
• US Class Current: 362/373
• 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: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A heat dissipation structure for a light bulb assembly includes a holder, a heat dissipating cover, and a light seat. The holder includes a socket and a receiving space defined in the socket to receive a circuit board, the socket includes a first abutting portion formed on a peripheral side thereof and at least one first coupling portion arranged on a lateral side thereof. The heat dissipating cover includes a through hole for inserting the socket, and at least one cooling fin arranged around an outer peripheral side thereof. The light seat is used for installing a LED light, which includes a second coupling portion connected with the at least one first coupling portion, and a second abutting portion retaining the heat dissipating cover with the first abutting portion.

Claims

1. A heat dissipation structure for a light bulb assembly comprising:

a holder including a socket and a receiving space defined within the socket to receive a circuit board, the socket including a first abutting portion formed on a peripheral side thereof and at least one first coupling portion arranged on a lateral side thereof;

a heat dissipating cover including a first end abutted by the first abutting portion, a second end opposite to the first end, a through hole communicating the first end with the second end for the socket to penetrate through, and at least one cooling fin arranged around an outer peripheral side thereof; and

a light seat including an outer wall penetrating into the through hole of the heat dissipating cover, a holding space defined within the outer wall for installing an LED light which is electrically connected to the circuit board, a second abutting portion formed on a peripheral side thereof and abutted by the second end of the heat dissipating cover, and at least one second coupling portion extended from the outer wall to insert into the through hole and couple with the at least one first coupling portion so that the holder, the heat dissipating cover, and the light seat are tightly coupled together.

2. The heat dissipation structure for the light bulb assembly of claim 1, wherein the heat dissipating cover includes a heat dispersing portion fitted on the socket and an aluminum plate mounted on the second end of the heat dispersing portion.

3. The heat dissipation structure for the light bulb assembly of claim 2, wherein the light seat includes a first positioning portion, and the aluminum plate includes a second positioning portion positioning the first positioning portion.

4. The heat dissipation structure for the light bulb assembly of claim 1, wherein further comprising a lampshade engaged with the heat dissipating cover to receive the light seat.

5. The heat dissipation structure for the light bulb assembly of claim 4, wherein the lampshade includes an orifice for the LED light to extend outward therefrom.

6. The heat dissipation structure for the light bulb assembly of claim 1, wherein the at least one first coupling portion is a retaining recess, and the second coupling portion is a hook retained with the retaining recess.

7. The heat dissipation structure for the light bulb assembly of claim 1, wherein the holder includes a metal connector connected with an external power source to supply a power to the circuit board.

8. The heat dissipation structure for the light bulb assembly of claim 1, wherein the LED light includes a first engaging portion, and the light seat includes a second engaging portion engaging with the first engaging portion.