ASSEMBLED STRUCTURE OF LARGE-SIZED LED LAMP

• US 20080055908A1
• Filed: 08/30/2006
• Published: 03/06/2008
• Est. Priority Date: 08/30/2006
• Status: Active Grant

• Current Assignee: Chaun-Choung Technology Corp. (Nidec Corporation)
• Original Assignee: Chaun-Choung Technology Corp. (Nidec Corporation)
• Inventors: Wu, Chung, Hsu, Zu-Chao, Huang, Meng-Cheng
• Granted Patent: US 7,338,186 B1
• Time in Patent Office: Days
• US Class Current: 362/294
• 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: F21S 2/005 of modular construction
• CPC Class Codes: F21V 29/51 using condensation or evaporation of a fluid, e.g. heat pipes
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21Y 2105/10 comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10S 362/80 Light emitting diode

Abstract

An assembled structure of a large-sized LED lamp includes a substrate. One surface of the substrate is provided with a plurality of LED modules. Each LED module comprises a circuit board and a plurality of LEDs fixedly connected to the circuit board. A lamp mask is locked onto the substrate to cover and protect the LED modules. A sealing material is provided between the lamp mask and the substrate to protect the permeation of liquid. Further, at the positions of the other surface of the substrate, heat-dissipating modules are provided to correspond to each LED module, respectively. The heat-dissipating modules are used to dissipate heat generated from the LEDs. A lamp cover is covered to the exterior of the heat-dissipating modules. The lamp cover is locked onto the substrate. With the modulization of each constituent element, the detachment, assembly and repair of the present invention can be much simpler and more convenient.

Claims

1. An assembled structure of a large-sized LED lamp, comprising:

a substrate (1);

a plurality of LED modules (2) fixed on one surface of the substrate (1), each LED modules (2) comprising a circuit board (21) and a plurality of LEDs (22) fixedly connected to the circuit board (21);

a lamp mask (3) mounted on the surface of the substrate (1) provided with the LED modules (2) so as to cover the LED modules (2);

a plurality of heat-dissipating modules (5) fixedly provided on the other surface of the substrate (1), each heat-dissipating module (5) provided to correspond to each LED module (2); and

a lamp cover (6) mounted on the surface of the substrate (1) provided with the heat-dissipating modules (5) so as to cover the heat-dissipating modules (5),

wherein each heat-dissipating module (5) comprises a plurality of heat-dissipating fins (51) arranged at identical intervals, two U-shaped heat pipes (52) penetrating through the heat-dissipating fins (51), and

wherein a hole is formed on each heat-dissipation fin (51) so as to make a tunnel formed in the heat-dissipating module (5), and both elongated ends of each U-shaped heat pipe (52) are embedded in the heat-dissipating fins (51) to respectively locate above and beneath the tunnel while a lower elongated end of the U-shaped heat pipe (52) has a flat surface exposed out and leveled with a lower surface of the heat-dissipating module (%) so that when the heat-sissipating module (5) is fixed, the flat surface together with the lower surface are directly contacted on the surface of the substrate (1) provided with the heating-dissipating modules.

2. The assembled structure of a large-sized LED lamp according to claim 1, wherein the substrate (1) is made of heat-conducting or heat-dissipating material.

3. The assembled structure of a large-sized LED lamp according to claim 1, wherein each corner of the circuit board (21) of each LED module (2) is provided with a locking hole (211), and the substrate (1) is provided with screw holes (11) to correspond to the locking holes (211), and bolt elements (23) are used to lock the LED modules (2) on the substrate (1).

4. The assembled structure of a large-sized LED lamp according to claim 1, wherein a sealing material (4) is provided between the substrate (1) and the lamp mask (3).

5. The assembled structure of a large-sized LED lamp according to claim 4, wherein the sealing material (4) is a foam having a hollow rectangular frame.

6. The assembled structure of a large-sized LED lamp according to claim 1, wherein the shape of the periphery of the lamp mask (3) is not larger than that of the periphery of the substrate (1).

8. The assembled structure of a large-sized LED lamp according to claim 1, wherein the lamp cover (6) is constituted of a top plate (61) and a plurality of surrounding plates (62) extending downwardly from the periphery of the top plate (61), and each surrounding plate (62) is provided with a plurality of venting holes (63).

9. The assembled structure of a large-sized LED lamp according to claim 1, wherein the lamp mask is constituted of a plurality of small lamp masks (3′

), and each small lamp mask (3′

) is covered on the exterior of each LED module (2), respectively.

7. (canceled)