LED LAMP TUBE HEAT DISSIPATING STRUCTURE

• US 20100002439A1
• Filed: 07/02/2008
• Published: 01/07/2010
• Est. Priority Date: 07/02/2008
• Status: Active Grant

• Current Assignee: Illumafinity, LLC (Ascend Innovation Management, LLC)
• Original Assignee: CPUMate Incorporated, Golden Sun News Techniques Company Limited
• Inventors: Liu, Wen-Jung, Lin, Chen-Hsiang, Hsu, Ken, Cheng, Chih-Hung, Lin, Kuo-Len, Wang, Hwai-Ming
• Granted Patent: US 7,815,347 B2
• Time in Patent Office: Days
• US Class Current: 362/249.04
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21K 9/27 Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
• CPC Class Codes: F21K 9/66 Details of globes or covers forming part of the light source
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/60 characterised by the use of a forced flow of gas, e.g. air
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/16 square or rectangular, e.g. for light panels
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A light emitting diode (LED) lamp tube heat dissipating structure is capable of dissipating heat in a tube quickly to improve the heat dissipating efficiency. A circuit board with a light radiating surface and a heat dissipating surface is contained in the tube, and the light radiating surface of the circuit board is electrically connected to LED lamps. Two conductive bushings are sheathed onto both ends of the tube and electrically connected with the circuit board, and at least one heat dissipating hole is disposed separately on both distal surfaces of the tube that covers the heat dissipating surface of the circuit board, such that external air is entered into the tube from the heat dissipating hole on a distal surface of the tube and dispersed from the heat dissipating hole on another distal surface of the tube for dissipating the heat in the tube.

Claims

1. A light emitting diode (LED) lamp tube heat dissipating structure, comprising:

a tube;

a circuit board, contained in the tube, and having a light radiating surface and a heat dissipating surface;

a plurality of LED lamps, installed on the light radiating surface of the circuit board and electrically coupled with the circuit board; and

two conductive bushings, sheathed onto both ends of the tube respectively, and electrically coupled with the circuit board;

wherein at least one heat dissipating hole is disposed separately on both distal surfaces of the tube that is covered onto the heat dissipating surface of the circuit board.

2. The light emitting diode (LED) lamp tube heat dissipating structure of claim 1, wherein the tube is made of a light transmitting plastic material.

3. The light emitting diode (LED) lamp tube heat dissipating structure of claim 1, wherein the heat dissipating hole comes with a quantity greater than one.

4. The light emitting diode (LED) lamp tube heat dissipating structure of claim 1, wherein the LED lamps are disposed with an interval apart from each other and on the light radiating surface of the circuit board.