LED LIGHTING APPARATUS

• US 20150345754A1
• Filed: 08/06/2014
• Published: 12/03/2015
• Est. Priority Date: 06/02/2014
• Status: Active Grant

• Current Assignee: Samjin LND Company Limited
• Original Assignee: Samjin LND Company Limited
• Inventors: Sohn, Choong-Yong, Park, Geun Kyo, Kim, Jong Ho
• Granted Patent: US 9,599,320 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 17/104 using feather joints, e.g. tongues and grooves, with or without friction
• CPC Class Codes: F21V 17/12 by screwing
• CPC Class Codes: F21V 23/009 the casing being inside the housing of the lighting device
• CPC Class Codes: F21V 3/02 characterised by the shape
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• 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 2115/10 Light-emitting diodes [LED]

Abstract

An LED lighting apparatus is disclosed. The lighting apparatus according to an exemplary embodiment of the present invention includes: a main cover with an elongated pipe shape having a cross-section formed of a closed curve line and both ends of a length direction formed to be open; an external frame sliding-coupled to an external surface of the main cover along a length direction of the main cover; an inner frame having a shape extending in a direction parallel to the length direction of the main cover and sliding-coupled to an internal surface of the main cover along with the length direction of the main cover to be positioned at the inner space of the main cover; and a close-and-seal cover closing and sealing both open ends of the main cover to close and seal the inner space of the main cover, wherein the bottom surface of the inner frame supports an emitted LED, and the close-and-seal cover is coupled to the external frame and the inner frame.

Claims

1. An LED lighting apparatus comprising:

a main cover with an elongated pipe shape having a cross-section formed of a closed curve line and both ends of a length direction formed to be open;

an external frame sliding-coupled to an external surface of the main cover along a length direction of the main cover;

an inner frame having a shape extending in a direction parallel to the length direction of the main cover and sliding-coupled to an internal surface of the main cover along the length direction of the main cover to be positioned at the inner space of the main cover; and

a close-and-seal cover closing and sealing both open ends of the main cover to close and seal the inner space of the main cover,

wherein the bottom surface of the inner frame supports an emitted LED, and

the close-and-seal cover is coupled to the external frame and the inner frame.

2. The LED lighting apparatus of claim 1, wherein:

a first coupling hole is formed at both end sides of the external frame in the length direction;

a second coupling hole is formed at both end sides of the inner frame in the length direction; and

the close-and-seal cover is coupled to the external frame and the inner frame by a fastening member coupled to the first coupling hole and the second coupling hole.

3. The LED lighting apparatus of claim 1, further comprising

a sealing member disposed between the close-and-seal cover and the main cover.

4. The LED lighting apparatus of claim 1, wherein

the cross-section of the main cover is formed with a shape in which a lower side is curved in a lower direction.

5. The LED lighting apparatus of claim 4, wherein

the cross-section of the main cover is formed with a shape in which the upper side is formed to be flat, but both ends of the upper side are bent to be connected to the lower side.

6. The LED lighting apparatus of claim 2, wherein

an insertion groove that is concave in an inner direction at the upper side of the main cover is integrally formed with the main cover.

7. The LED lighting apparatus of claim 6, wherein:

the external frame includes an insertion protrusion corresponding to the insertion groove; and

the external frame is sliding-inserted to the upper side of the main cover to be coupled such that the insertion protrusion is coupled to the insertion groove.

8. The LED lighting apparatus of claim 7, wherein:

the insertion groove is symmetrically formed at both sides with reference to the cross-section of the main cover; and

the first coupling hole is formed at the insertion protrusion.

9. The LED lighting apparatus of claim 2, wherein

a supporting protrusion that is convex in the inner direction at the internal surface of the lower side of the main cover is integrally formed with the main cover to support the inner frame.

10. The LED lighting apparatus of claim 9, wherein:

the supporting protrusion is symmetrically formed at both sides of the main cover with reference to the cross-section; and

both ends of the inner frame are supported on the supporting protrusion.

11. The LED lighting apparatus of claim 10, wherein

the second coupling hole is respectively positioned at both ends of the inner frame with reference to the cross-section.

12. The LED lighting apparatus of claim 10, wherein

the inner frame includes an inclination portion that is inclined in the lower direction at both ends with reference to the cross-section.

13. The LED lighting apparatus of claim 12, wherein

a reflection member is installed at the inclination portion.

14. The LED lighting apparatus of claim 12, wherein

the inner frame is formed with an ‘

M’

shape with reference to the cross-section.

15. The LED lighting apparatus of claim 8, wherein

both ends of the inner frame are inserted into a space between a top surface of the main cover and the insertion groove with reference to the cross-section to be supported by the internal surface of the main cover.

16. The LED lighting apparatus of claim 15, wherein

the inner frame is formed with a ‘

V’

shape with reference to the cross-section.

17. The LED lighting apparatus of claim 16, wherein

the second coupling hole is positioned at a lower center of the inner frame with reference to the cross-section.

18. The LED lighting apparatus of claim 1, wherein

the main cover is integrally formed while having transparency.

19. The LED lighting apparatus of claim 1, wherein:

a driving circuit unit driving the LED is supported at the top surface of the inner frame; and

the LED is included in the bottom surface of the inner frame to support the LED substrate.

20. The LED lighting apparatus of claim 1, further comprising

a bracket fixing the main cover at an installation place, and

the bracket is coupled to the external frame.