OPTICAL SEMICONDUCTOR LIGHTING APPARATUS

• US 20130128588A1
• Filed: 01/24/2013
• Published: 05/23/2013
• Est. Priority Date: 08/06/2010
• Status: Active Grant

• Current Assignee: Posco Led Company Ltd. (TMS Co., Ltd.)
• Original Assignee: Posco Led Company Ltd. (TMS Co., Ltd.)
• Inventors: KIM, Dong-Soo, JEONG, Min-A, KANG, Seok-Jin
• Granted Patent: US 8,801,231 B2
• Time in Patent Office: Days
• US Class Current: 362/294
• CPC Class Codes: F21S 8/026 intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
• CPC Class Codes: F21V 23/0457 the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
• CPC Class Codes: F21V 29/505 of reflectors
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/67 characterised by the arrangement of fans
• CPC Class Codes: F21V 29/677 the fans being used for discharging
• CPC Class Codes: F21V 29/773 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21V 29/78 with helically or spirally arranged fins or blades
• 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]

Abstract

An optical semiconductor lighting apparatus including a housing with a first end portion and a second end portion that is open, a light source module disposed in the housing, a fan disposed adjacent to the light source module in the housing, the fan rotating in a first direction to blow air toward the light source module, and a reflector disposed adjacent to the second end portion of the housing, the reflector enhancing an illumination scope. A moving path, in which at least a portion of the air drawn into the housing by the fan externally flows through the light source module, is formed in the housing.

Claims

1. An optical semiconductor lighting apparatus comprising:

a housing comprising a first end portion and a second end portion facing the first end portion, wherein the second end portion is open;

a light source module disposed inside the housing;

a fan disposed inside the housing and adjacent to the light source module, wherein the fan rotates in a first direction to blow air to the light source module; and

a reflector disposed adjacent to the second end portion of the housing,

wherein the housing has a plurality of an end portion support coupled with the reflector so that a plurality of outer vent is formed, wherein the plurality of end portion support is separated from one another and protrudes around a lower side of the housing.

2. An optical semiconductor lighting apparatus of claim 1, wherein the outer vent is formed so that the fan moves air drawn into inside of the housing toward an exterior surface of the reflector.

3. An optical semiconductor lighting apparatus of claim 2, wherein the outer vent is formed to be inclined along the exterior surface of the reflector.

4. An optical semiconductor lighting apparatus of any of claim 1, further comprising a dust collecting module collecting dusts in air contained in the reflector.

5. An optical semiconductor lighting apparatus of any of claim 1, further comprising a heat sink dissipating heat generated from the light source module.

6. An optical semiconductor lighting apparatus of any of claim 1, wherein the housing. comprises:

a case body receiving the fan and the light source module, wherein a upper portion and a lower portion of the case body is open respectively; and

a upper cover coupled with the case body to cover the upper portion of the case body.

7. An optical semiconductor lighting apparatus of claim 6, wherein an air inlet through which outside air flows into the housing is formed at the upper cover.

8. An optical semiconductor lighting apparatus of claim 6, wherein the upper cover is separated from a top of the case body to form a side inlet for allowing outside air to flow into the housing.