Lighting device

Patent metadata

Field	Value
Publication number	US-9353915-B2
Application number	US-201414561835-A
Country	US
Kind code	B2
Filing date	Dec 5, 2014
Priority date	Jul 8, 2011
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

A lighting device may be provided to include a heat sink which includes a receiving recess and a top surface including a hole; a light source module which includes a substrate disposed on the heat sink, a light emitting device disposed on the substrate and a pad disposed on the substrate; a power supplier which is disposed in the receiving recess of the heat sink and includes a projection outputting a power signal for driving the light source module; and a connector which is coupled to the hole of the heat sink, includes a contacting part electrically connected to the pad of the light source module, and is electrically connected to the projection of the power supplier.

First claim

What is claimed is:

1. A lighting device comprising:
a heat sink that includes a receiving recess;
a light source module that includes a substrate on the heat sink and a light emitting device on the substrate;
a power supplier that is provided in the receiving recess of the heat sink; and
an inner case provided in the receiving recess of the heat sink and in which the power supplier and a molding part having a molding material are provided,
wherein the inner case includes an opening into which the molding material is injected and a packing that blocks the opening,
wherein the power supplier includes a wire electrically connected to a socket through the opening of the inner case, and
wherein the packing includes a gap in which the wire is provided.

2. The lighting device of claim 1 , wherein the gap is formed by digging or widening a portion of an outer circumference of the packing in an internal direction of the packing, and wherein when the packing is coupled to the opening of the inner case, the gap fixes the wire.

3. The lighting device of claim 1 ,
wherein the heat sink includes a top surface having a hole,
wherein the light source module includes a pad on the substrate,
wherein the power supplier includes a projection to output a power signal for driving the light source module,
wherein the lighting device further comprises a connector to couple to the hole of the heat sink,
wherein the connector to include a contacting part for electrically connecting to the pad of the light source module,
wherein the connector is for electrically connecting to the projection of the power supplier.

4. A lighting device comprising:
a heat sink that includes a receiving recess;
a light source module that includes a substrate on the heat sink and a light emitting device on the substrate;
a power supplier that is provided in the receiving recess of the heat sink;
an inner case that receives the power supplier and is provided in the receiving recess of the heat sink; and
a socket coupled to the inner case and includes a screw recess,
wherein the inner case includes a screw thread corresponding to the screw recess of the socket,
wherein the screw thread includes a plurality of cavities in which a first wire electrically connecting the power supplier and the socket are provided, and
wherein the plurality of cavities are arranged adjacently.

5. The lighting device of claim 4 ,
wherein the heat sink includes a top surface having a hole,
wherein the light source module includes a pad on the substrate,
wherein the power supplier includes a projection to output a power signal for driving the light source module,
wherein the lighting device further comprises a connector to couple to the hole of the heat sink,
wherein the connector to include a contacting part for electrically connecting to the pad of the light source module,
wherein the connector is for electrically connecting to the projection of the power supplier.

6. A lighting device comprising:
a heat sink that includes a receiving recess;
a light source module that includes a substrate on the heat sink and a light emitting device on the substrate;
a power supplier that is provided in the receiving recess of the heat sink;
an inner case that receives the power supplier and is provided in the receiving recess of the heat sink; and
a socket coupled to the inner case,
wherein the inner case includes a projection projecting in a direction in which the inner case is coupled to the socket,
wherein the inner case includes an opening formed on one side thereof coupled to the socket and includes a packing blocking the opening, and
wherein the projection of the inner case is disposed around the packing.

7. The lighting device of claim 6 ,
wherein the heat sink includes a top surface having a hole,
wherein the light source module includes a pad on the substrate,
wherein the power supplier includes a projection to output a power signal for driving the light source module,
wherein the lighting device further comprises a connector to couple to the hole of the heat sink,
wherein the connector to include a contacting part for electrically connecting to the pad of the light source module,
wherein the connector is for electrically connecting to the projection of the power supplier.

8. A lighting device comprising:
a heat sink that includes a receiving recess;
a light source module that includes a substrate on the heat sink and a light emitting device on the substrate;
a power supplier that is provided in the receiving recess of the heat sink;
a cover that is on the light source module and is coupled to the heat sink,
wherein the heat sink includes a guide connected to an outer circumference of the top surface of the heat sink,
wherein the cover includes a hook,
wherein the guide of the heat sink includes a hitching sill coupled to the hook,
wherein the cover includes a reference member, and
wherein the top surface of the heat sink include a reference recess coupled to the reference member.

9. The lighting device of claim 8 , wherein the cover further includes a connection member that has a portion thereof where the hook is provided.

10. The lighting device of claim 9 , wherein a plurality of the connection members are provided on an edge of the cover, and wherein the plurality of the connection members are provided separately from each other.

11. The lighting device of claim 8 ,
wherein the heat sink includes a top surface having a hole,
wherein the light source module includes a pad on the substrate,
wherein the power supplier includes a projection to output a power signal for driving the light source module,
wherein the lighting device further comprises a connector to couple to the hole of the heat sink,
wherein the connector to include a contacting part for electrically connecting to the pad of the light source module,
wherein the connector is for electrically connecting to the projection of the power supplier.

12. A lighting device comprising:
a heat sink that includes a receiving recess and a top surface having a hole;
a light source module that includes a substrate on the heat sink, a light emitting device on the substrate and a pad on the substrate;
a power supplier that is provided in the receiving recess of the heat sink and includes a projection to output a power signal for driving the light source module;
a connector to couple to the hole of the heat sink, the connector to include a contacting part for electrically connecting to the pad of the light source module, and the connector is for electrically connecting to the projection of the power supplier;
a cover that is provided on the light source module and is coupled to the heat sink; and
a member that is provided on the heat sink and includes a guide recess in which the light source module and the connector are provided,
wherein the member reflects light incident from an inner surface of the cover toward the cover.

13. The lighting device of claim 12 ,
wherein the light source module comprises a first light source unit and a second light source unit,
wherein the guide recess comprises a first guide recess in which the first light source unit is provided, a second guide recess in which the second light source unit is provided and a third guide recess in which the connector is provided, and
wherein the first guide recess, the second guide recess and the third guide recess are connected.

14. A lighting device comprising:
a heat sink that includes a receiving recess;
a light source module that includes a substrate on the heat sink and a light emitting devic

Assignees

• Lg Innotek Co Ltd

Inventors

• Kim Ji Hoo
• Choi Tae Young
• Kim Do Hwan
• Kang Sung Ku
• Jung Chan Hyung

Classifications

• F21V29/773

  the planes containing the fins or blades having the direction of the light emitting axis · CPC title

• F21V23/002

  Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm · CPC title

• F21Y2105/10

  comprising a two-dimensional [2D] array of point-like light-generating elements · CPC title

• F21V29/75

  with fins or blades having different shapes, thicknesses or spacing · CPC title

• F21V23/009

  the casing being inside the housing of the lighting device · CPC title