Lighting device with socket connector positioning light source apart from housing

Patent metadata

Field	Value
Publication number	US-10408425-B2
Application number	US-201715644180-A
Country	US
Kind code	B2
Filing date	Jul 7, 2017
Priority date	Aug 22, 2011
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

A lighting device includes a housing; a socket with a first portion coupled to an inner surface of the housing and a second portion extending from the first portion and including a connector; a light source body having a light emitting module with a terminal received by and in electrical communication with the connector; and a reflector facing the light source body, the light source body supported by the socket at a position apart from the housing.

First claim

What is claimed is:

1. A lighting device comprising:
a housing including an inner side;
a socket including a coupling portion coupled to the inner side of the housing and a receiving portion extended from the coupling portion and disposed apart from the housing;
a light source body which is coupled to the receiving portion of the socket and is electrically connected the socket; and
a reflector provided in the housing,
wherein the light source body is disposed apart from the housing,
wherein the light source body includes a surface inclined toward the reflector,
wherein the light source body includes a light emitting module comprising a substrate provided on the surface and a light emitting device arranged on the substrate,
wherein the light emitting device emits lights toward the reflector, and
wherein the light emitting module includes a first light emitting module which is disposed in the light source body; and a second light emitting module which is disposed adjacent to the first light emitting module, and wherein an optical efficiency of the first light emitting module is better than that of the second light emitting module.

2. The lighting device of claim 1 , wherein the lighting device has a space formed between the housing and the light source body.

3. The lighting device of claim 1 , wherein the light source body includes a bottom surface, and wherein the bottom surface is curved.

4. The lighting device of claim 1 , further including a heat radiation sheet provided between the first light emitting module and the light source body.

5. The lighting device of claim 1 , wherein the light source body further includes a heat radiating structure, wherein the heat radiating structure is disposed on the first light emitting module.

6. The lighting device of claim 1 , wherein the light source body includes a first heat radiating structure and a second heat radiating structure, wherein the first heat radiating structure is arranged on the first light emitting module, wherein the second heat radiating structure is arranged on the second light emitting module, and an arrangement density of the first heat radiating structure is higher than that of the second heat radiating structure.

7. The lighting device of claim 1 , wherein the socket includes a first socket coupled to a first inner side of the housing and a second socket coupled to a second inner side of the housing, wherein the light source body includes a first terminal disposed at a first side of the light source body and a second terminal disposed at a second side of the light source body, and wherein the first terminal is coupled to the first socket and the second terminal is coupled to the second socket.

8. The lighting device of claim 7 , further comprising a coupler disposed on an inner bottom surface of the housing, wherein the coupler connects the first inner side with the second inner side, and wherein the first socket and the second socket are coupled to the coupler, respectively.

9. The lighting device of claim 1 , wherein the socket includes a connector disposed in the receiving portion, wherein the light source body includes a terminal electrically connected to the connector of the socket, and wherein the receiving portion of the socket supports the terminal of the light source body.

10. The lighting device of claim 9 , wherein the receiving portion has a shape corresponding to the shape of the terminal of the light source body, and wherein the terminal is inserted into the receiving portion.

11. The lighting device of claim 9 , wherein the terminal of the light source body is disposed on both sides of the light source body respectively, and the socket is disposed on both inner sides of the housing respectively.

Assignees

• Lg Innotek Co Ltd

Inventors

• Kim Jin Wook
• Jeon Ji Hwan
• Hong Sang Jun

Classifications

• F21S8/043

  mounted by means of a rigid support, e.g. bracket or arm · CPC title

• F21S8/026 Primary

  intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling · CPC title

• F21V19/008

  of straight tubular light sources, e.g. straight fluorescent tubes, soffit lamps · CPC title

• F21V7/06 Primary

  with parabolic curvature · CPC title

• F21Y2103/10

  comprising a linear array of point-like light-generating elements · CPC title