Lighting device

Patent metadata

Field	Value
Publication number	US-9538623-B2
Application number	US-201514701601-A
Country	US
Kind code	B2
Filing date	May 1, 2015
Priority date	May 12, 2014
Publication date	Jan 3, 2017
Grant date	Jan 3, 2017

Abstract

Provided is a lighting device. The lighting device includes a light emitting diode (LED) printed circuit board (PCB) on which LED devices for emitting light are disposed, the LED PCB controlling an operation of each of the LED devices, a converter PCB for supplying power into the LED PCB, a housing having a space in which the LED PCB is accommodated, the housing having a heat dissipation structure, a communication module disposed under the LED PCB, the communication module allowing the lighting device to communicate with an external device, and a signal receiving unit connected to the communication module, the signal receiving unit being disposed on the LED PCB. The LED PCB may have a through hole through which an upper end of the communication module passes, and the signal receiving unit is coupled to the upper end of the communication module passing through the through hole.

First claim

What is claimed is:

1. A lighting device comprising:
a light emitting diode (LED) printed circuit board (PCB) on which LED devices for emitting light are provided, the LED PCB controlling an operation of each of the LED devices;
a converter PCB to supply power into the LED PCB;
a housing having a space in which the LED PCB is accommodated, the housing having a heat dissipation structure to release heat generated from the LED device;
a communication module provided under the LED PCB, the communication module allowing the lighting device to communicate with an external device; and
a signal receiver connected to the communication module, the signal receiver being provided on the LED PCB,
wherein the LED PCB has a through hole through which an upper end of the communication module passes,
wherein the signal receiver is coupled to the upper end of the communication module passing through the through hole,
wherein the LED PCB is divided into a first area on which the LED devices are densely provided and a second area on which the LED devices are sparsely provided according to a number of the LED devices, and
wherein the through hole is defined in the second area of the LED PCB.

2. The lighting device according to claim 1 , wherein a lower end of the signal receiver is coupled to the communication module at a position higher than an upper end of the housing.

3. The lighting device according to claim 2 , wherein the upper end of the communication module passes through the through hole and is maintained at a position higher than the upper end of the housing.

4. The lighting device according to claim 1 , wherein the upper end of the communication module is provided to be spaced a predetermined distance from a central portion of the through hole, and the signal receiver coupled to the upper end of the communication module is provided in a central portion of the through hole.

5. A lighting device comprising:
a light emitting diode (LED) printed circuit board (PCB) on which LED devices for emitting light are provided, the LED PCB controlling an operation of each of the LED devices;
a converter PCB to supply power into the LED PCB;
a housing having a space in which the LED PCB is accommodated, the housing having a heat dissipation structure to release heat generated from the LED device;
a communication module provided under the LED PCB, the communication module allowing the lighting device to communicate with an external device; and
a signal receiver connected to the communication module, the signal receiver being provided on the LED PCB,
wherein the LED PCB has a through hole through which an upper end of the communication module passes,
wherein the signal receiver is coupled to an upper end of the communication module passing through the through hole, wherein the upper end of the communication module is fixed in position to an inner wall of the through hole in a press-fit manner.

6. The lighting device according to claim 5 , wherein a lower end of the signal receiver is coupled to the communication module at a position higher than an upper end of the housing.

7. The lighting device according to claim 6 , wherein the upper end of the communication module passes through the through hole and is maintained at a position higher than the upper end of the housing.

8. The lighting device according to claim 5 , wherein the upper end of the communication module is provided to be spaced a predetermined distance from a central portion of the through hole, and
the signal receiver coupled to the upper end of the communication module is provided in a central portion of the through hole.

9. A lighting device, comprising:
a housing;
a first printed circuit board (PCB) provided in the housing to extend in a first direction and having an opening therein;
an antenna coupled to the first PCB;
a connector fit in the opening of the first PCB, the antenna being coupled to the connector;
a plurality of LED devices provided on the first PCB;
a cover provided over the first PCB to allow light emitted by the plurality of LED devices to be transmitted therethrough;
a second PCB provided in the housing to extend in a second direction different than the first direction and coupled to the first PCB through the connector; and
a communication module provided on the second PCB and configured to communicate with an external device, the plurality of LED devices being controlled based on signals received through the communication module,
wherein the second PCB is provided to extend through the first PCB through an opening formed in the first PCB, and
wherein the communication module is coupled to the antenna provided between the first PCB and the cover,
wherein the second PCB includes a plurality of protrusions that extend through the opening of the first PCB, the plurality of protrusions including:
a first protrusion coupled to the antenna through the connector; and
first and second connection terminals coupled to the first PCB through the connector.

10. The lighting device of claim 9 , wherein the second PCB is perpendicular to the first PCB.

11. The lighting device of claim 9 , wherein the antenna has a prescribed shape that covers a portion of the second PCB that extends through the first PCB.

12. The lighting device of claim 9 , wherein the antenna and the second PCB extend toward the cover in a direction in which light is emitted by the plurality of LED devices and include a reflective material that reflects the light emitted by the plurality of LED devices.

13. A lighting device comprising:
a housing having a prescribed structure configured to dissipate heat;
a light emitting device (LED) printed circuit board (PCB) including an LED device, the LED PCB being configured to control an operation of the LED device, wherein the LED PCB is coupled to the housing such that heat generated by the LED device is dissipated by the housing;
a cover provided over the LED PCB to allow light emitted by the LED device to be transmitted therethrough;
a converter PCB that provides direct-current (DC) power to the LED PCB; and
a communication module coupled to the converter PCB and configured to communicate with an external device,
wherein a signal receiver to receive a radio signal is provided on a surface of the converter PCB, and
wherein the LED PCB includes an antenna hole having a prescribed size, the converter PCB extending through the antenna hole on the LED PCB such that the signal receiver is positioned in a region between the LED PCB and the cover,
wherein the converter PCB includes an antenna connection protrusion that extends from an end of the converter PCB toward the cover, and
the signal receiver is provided on the antenna connection protrusion of the converter PCB.

14. The lighting device according to claim 13 , wherein the signal receiver is a chip antenna coupled to one surface of the antenna connection protrusion.

15. The lighting device according to claim 13 , wherein the signal receiver is an antenna that is patterned on an outer circumferential surface of the antenna connection protrusion or inside of the antenna connection protrusion.

16. The lighting device according to claim 13 , wherein a first connection terminal and a second connection terminal are provided on the converter PCB to protrude a predetermined length, and wherein a converter connector is provided on the LED PCB to electrically couple the first and the second terminals to the LED PCB.

17. The lighting device according to claim 13 , wherein an outer circumferential surface of the signal receiver or a

Assignees

• Lg Electronics Inc

Inventors

• Lee Jaemyoung
• Park Heegu
• Ra Inhwan
• Ahn Sunghoon

Classifications

• F21V7/24

  characterised by the material · CPC title

• F21Y2105/10

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

• F21K9/238

  Arrangement or mounting of circuit elements integrated in the light source · CPC title

• F21V23/02

  the elements being transformers, impedances {or power supply units, e.g. a transformer with a rectifier} · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title