LED LIGHTING DEVICE

• US 20110156584A1
• Filed: 08/26/2009
• Published: 06/30/2011
• Est. Priority Date: 08/08/2008
• Status: Abandoned Application

• Current Assignee: Solarkor Company Ltd.
• Original Assignee: Solarkor Company Ltd.
• Inventors: Kim, Hyun Min
• Application Number:
  US13/060,747
• Publication Number:
  US 20110156584A1
• Time in Patent Office: Days
• US Class Current: 315/32
• 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: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21S 2/005 of modular construction
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 29/507 of means for protecting lighting devices from damage, e.g. housings
• CPC Class Codes: F21V 29/83 the elements having apertures, ducts or channels, e.g. heat radiation holes
• CPC Class Codes: F21V 5/008 Combination of two or more successive refractors along an optical axis
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2107/30 on the outer surface of cylindrical surfaces, e.g. rod-shaped supports having a circular or a polygonal cross section
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

The present invention relates to a lighting device using an LED. One embodiment of the invention provides a lamp-shaped LED lighting device that can replace a known lighting device. The lamp-shaped LED lighting device promptly emits the heat generated by an LED element, which influences the optical output and the lifespan of the LED lighting device, through a lamp-shaped frame with a heat-ventilation structure that facilitates air circulation. In addition, the lamp-shaped LED lighting device prevents glare from an LED light source by using a lateral reflecting member, a diffusion lens and a diffusion cover and diffuses the light from the light source widely without optical attenuation. Another embodiment of the invention provides a tube and panel-shaped LED lighting devices that can be replaced with a previous tube-shaped fluorescent light and a panel-shaped lighting device. The tube and panel-shaped LED lighting devices rapidly emit the heat generated by an LED element, which influences the optical output and the life span of the LED lighting device, through a tube and panel-shaped frame with a heat-sink structure. In addition, the tube and panel-shaped LED lighting devices prevent glare from the LED light source by optically arranging a curved reflecting plate, a diffusion plate and a diffusion window which include a diffusion lens at the upper portion of the LED element. Furthermore the tube and panel-shaped LED lighting devices diffuse the light from the LED light source widely without optical attenuation.

Claims

1. A lamp-shaped LED lighting device, comprising:

a housing cover having a socket fixed at one side thereof;

a heat dissipating frame fixed to the other side of the housing cover, having at least three side reflecting portions formed on the outer peripheral surface thereof, and a ventilation unit having at least one ventilation hole formed at a portion which the end of the side reflecting portion contacts;

an LED module fixed to the side reflecting portion of the heat dissipating frame and having an LED element;

a power supply module unit installed in the heat dissipating frame;

a side reflecting member fixed to the side reflecting portion of the heat dissipating frame to cover the LED module and having a boring hole formed at a location corresponding to an emission surface of the LED element;

a frame cover coupled to be attached to and detached from the bottom of the heat dissipating frame; and

a diffusion cover mounted on the side reflecting portion of the heat dissipating frame and having a toothed diffusion lens serving as refraction and diffusion operations installed on the inner periphery thereof,

wherein at least one housing hole is formed on the housing cover.

3. The lamp-shaped LED lighting device of claim 1, wherein an optical sensor is installed at one side of the frame cover.

4. The lamp-shaped LED lighting device of claim 3, wherein a diffusion lens diffusing a light source emitted from the LED module is installed in the side reflecting member.

5. The lamp-shaped LED lighting device of claim 4, wherein a control unit controlling illumination of the LED module is installed in the power supply module unit.

6. The lamp-shaped LED lighting device of claim 5, wherein a prism is formed in the diffusion lens of the side reflecting member.

2. A lamp-shaped LED lighting device, comprising:

a housing cover having a socket fixed at one side thereof;

a power supply module housing coupled to be attached to and detached from the other side of the housing cover;

a heat dissipating frame fixed to one side of the power supply module housing, having at least three side reflecting portions formed on the outer peripheral surface thereof, and a ventilation unit having at least one ventilation hole formed at a portion which the end of the side reflecting portion contacts;

an LED module fixed to the side reflecting portion of the heat dissipating frame and having an LED element;

a power supply module unit installed in the power supply module housing;

a side reflecting member fixed to the side reflecting portion of the heat dissipating frame to cover the LED module and having a boring hole formed at a location corresponding to an emission surface of the LED element;

a frame cover coupled to be attached to and detached from the bottom of the heat dissipating frame; and

a diffusion cover mounted on the side reflecting portion of the heat dissipating frame and having a toothed diffusion lens serving as refraction and diffusion operations installed on the inner periphery thereof,

wherein at least one housing hole is formed on the housing cover.

7. A lamp-shaped LED lighting device, wherein at least one frame cover hole is formed in the frame cover.

8. The lamp-shaped LED lighting device of claim 7, wherein the toothed diffusion lens of the diffusion cover is formed by a Fresnel lens.

9. The lamp-shaped LED lighting device of claim 8, wherein the side reflecting member is plated with chrome or nickel.

10. The lamp-shaped LED lighting device of claim 9, wherein a dome-shaped reflecting mirror is installed at the center of the frame cover and an LED lamp is installed in the reflecting mirror.

11. The lamp-shaped LED lighting device of claim 10, wherein the LED module is replaceable by the side reflecting member and the frame cover separated from the heat dissipating frame.

12. A line-shaped LED lighting device, comprising:

a base frame partitioned into an upper space part and a lower space part, having a bent side wall, and having at least one frame ventilation hole formed on the side wall;

an LED module installed in the upper space part of the base frame and having an LED element;

a curved reflecting plate in which the end is supported on the upper space part of the base frame, a boring hole is formed at a location corresponding to an emission surface of the LED element, and a diffusion lens is installed on a straight line with the LED module;

a diffusion plate fixed to the top of the base frame;

a side cover coupled to the side of the base frame and connecting a power to the LED module; and

a power supply module unit coupled to the side cover to supply the power to the LED module,

wherein a toothed diffusion lens performing refraction and diffusion operations is installed on the diffusion plate.

13. The line-shaped LED lighting device of claim 12, further comprising a diffusion window fixed to the top of the base frame to cover the diffusion plate.

14. The line-shaped LED lighting device of claim 13, further comprising a frame supporting unit coupled to be attached to and detached from the base frame and having at least one heat dissipating pin and a ventilation hole formed on the side wall.

15. The line-shaped LED lighting device of claim 13, wherein an optical sensor and a control unit are installed in the power supply module unit and the control unit is connected with the power supply module unit and the optical sensor to automatically control illumination of the LED module.

16. The line-shaped LED lighting device of claim 15, wherein a prism is formed in the diffusion lens of the curved reflecting plate.

17. The line-shaped LED lighting device of claim 16, wherein a lenticular lens is installed in the diffusion window.

18. The line-shaped LED lighting device of claim 17, wherein a diffusion prism is further installed in the diffusion plate.

19. The line-shaped LED lighting device of claim 18, wherein the curved reflecting plate is plated with chrome or nickel.

20. A panel-shaped LED lighting device, comprising:

a heat dissipating plate in which recessed portions and projected portions are continuously formed and light source mounting grooves are formed in the projected portions;

a power supply controller installed on the heat dissipating plate;

an LED module mounted in the light source mounting groove of the heat dissipating plate and electrically connected to the power supply controller to flicker by a control from the power supply controller;

a reflecting plate in which curved reflecting portions coupled to a front surface of the heat dissipating plate and having a downward semicircular cross section are continuously formed and a boring hole is formed on the bottom of the curved reflecting portion;

a semicircular diffusion lens installed on the front bottom of the curved reflecting portion to cover the boring hole of the curved reflecting portion; and

a diffusion plate coupled to the front surface of the reflecting plate to cover the front surface of the reflecting plate.

21. The panel-shaped LED lighting device of claim 20, further comprising connectors provided on sides of the heat dissipating plate, which enable extension to a large surface lighting device through power supply connection and interconnections of the LED lighting devices by being electrically connected to the power supply controllers.

22. The panel-shaped LED lighting device of claim 20, wherein in the LED module, a plurality of LED elements are spaced apart from each other on a bar-type printed circuit board and connection terminals for electrically connecting the power supply controller are provided at one side thereof.

23. The panel-shaped LED lighting device of claim 20, wherein the LED module is replaceably mounted in the light source mounting groove.

24. The panel-shaped LED lighting device of claim 23, wherein boring holes are formed at only locations of the curved reflecting portion of the reflecting plate corresponding to the LED elements so that only light sources of the LED elements arranged in the LED module are projected onto the reflecting plate and the boring holes of the reflecting plate are supported in contact with the periphery of the emission surface of the LED element at the time of coupling the reflecting plate.

25. The panel-shaped LED lighting device of claim 20, wherein the reflecting plate is manufactured by forming a metal plate so that the curved reflecting portions are continuously formed and plating the surface thereof with chrome or nickel.

26. The panel-shaped LED lighting device of claim 20, wherein an inverted triangular lens surface having a prism shape performing a full-reflection operation is formed on the inner surface of the semicircular diffusion lens.

27. The panel-shaped LED lighting device of claim 20, wherein a prism-type toothed diffusion lens is formed on the bottom of the diffusion plate corresponding to the LED module.

28. The panel-shaped LED lighting device of claim 21, wherein as the panel-shaped LED lighting device is formed in a square shape and the connectors are provided at the centers of the sides one at a time, grid-shaped power supply circuits are implemented between the power supply controller and the connectors at the center and in the case where the panel-shaped LED lighting devices are connected to each other in horizontal and vertical directions by using the connectors to extend to the large surface lighting device, a generally net type power supply circuit is implemented by power supply circuits.