Lighting device

Patent metadata

Field	Value
Publication number	US-2016169484-A1
Application number	US-201414908466-A
Country	US
Kind code	A1
Filing date	Jul 23, 2014
Priority date	Jul 29, 2013
Publication date	Jun 16, 2016
Grant date	—

Abstract

Disclosed is a lighting device which includes: a cover; a placement portion disposed within the cover; a light source which includes a substrate disposed on the placement portion, a light emitting device disposed on the substrate, and a connector connected to the substrate; a cap which is coupled to both ends of the cover respectively and has at least one opening; a socket including a connection portion which is coupled to the cap and is inserted into the opening of the cap. The connection portion of the socket is inserted into the opening of the cap and is rotated, and then is physically and electrically connected to the connector of the light source. The lighting device according to the embodiment of the present invention can be substituted for a conventional fluorescent lamp. Since the lighting device according to the embodiment of the present invention does not use a wire electrically connecting the socket to the light source, there is no requirement for a soldering process.

First claim

2 . The lighting device of claim 1 ,
wherein the connection portion of the socket comprises a first connection portion and a second connection portion which are disposed apart from each other, wherein the opening of the cap is formed in the central portion of the cap, and wherein the first connection portion and the second connection portion are disposed in the opening, wherein an end of the first connection portion and an end of the second connection portion pass through the concave portion of the cap, wherein a diameter of the opening is less than a distance between the end of the first connection portion and the end of the second connection portion, and wherein, when the socket is rotated, the end of the first connection portion and the end of the second connection portion move along an inner surface of the cap.

3 . The lighting device of claim 1 , wherein the concave portion of the cap is disposed on a vertical axis perpendicular to a horizontal axis parallel to a top or bottom surface of the substrate of the light source.

4 . The lighting device of claim 1 , wherein the concave portion of the cap is disposed between a horizontal axis parallel to a top or bottom surface of the substrate of the light source and a vertical axis perpendicular to the horizontal axis.

5 . (canceled)

6 . The lighting device of claim 1 , wherein the socket further comprises a pin electrically connected to the connection portion, and wherein the in further comprises a first in and a second pin which are disposed apart from each other, and
wherein the socket comprises a body comprising an inner surface on which the connection portion is disposed and an outer surface on which the pin is disposed, and wherein the inner surface of the body blocks the opening and the concave portion of the cap.

7 . The lighting device of claim 6 , wherein the connection portion of the socket comprises:
a first contacting part which is connected to the body and is disposed in the opening of the cap; an extension part which is connected to the first contacting part and is disposed in the opening of the cap; and a second contacting part which is disposed on the first contacting part, is connected to the extension part, and passes through the opening and the concave portion of the cap.

8 . The lighting device of claim 7 , wherein the extension part extends in a direction perpendicular to the first contacting part.

9 . The lighting device of claim 6 , wherein the connection portion of the socket has a quadrangular cross section of which one side is open or a U-shaped cross section.

10 . The lighting device of claim 1 ,
wherein the connector of the light source has a predetermined elasticity, wherein the connector of the light source has one end connected to the substrate and the other end protruding outward from the substrate, and wherein, when the connection portion of the socket passes through the concave portion of the cap and is rotated, the other end of the connector is directly connected to the connection portion of the socket.

11 . The lighting device of claim 10 , wherein the other end of the connector is spaced apart from a side of the substrate by a predetermined distance.

12 . The lighting device of claim 10 , wherein a central portion between the one end and the other end of the connector is a plate having a predetermined curvature.

13 . The lighting device of claim 12 , wherein the central portion comprises a plurality of plates having at least two mutually different curvatures.

14 . The lighting device of claim 10 , wherein the one end of the connector is disposed on a top or bottom surface of the substrate.

15 . The lighting device of claim 1 ,
wherein the cover part comprises a first cover part and a second cover part, wherein the first cover part comprises a coupling portion, wherein the second cover part comprises a placement portion on which the substrate is disposed and a coupling groove into which the coupling portion is inserted, and radiates heat from the light source.

16 . The lighting device of claim 1 , wherein the cover part comprises a catching protrusion, and wherein the cover part further comprises a placement portion which is caught by the catching protrusion of the cover part and fixed and on which the substrate is disposed.

17 . (canceled)

18 . The lighting device of claim 1 , wherein the cap further comprises a catching protrusion, and wherein the catching protrusion restricts the rotation of the connection portion of the socket.

19 . A lighting device comprising:
a cover part which has an end and a cap disposed on the end; a light source which comprises a substrate disposed within the cover part, a light emitting device disposed on the substrate, and a connector disposed on the substrate; and a socket disposed on the cap,
wherein the cap of the cover part has an opening and a concave portion connected with the opening,
wherein the socket comprises a connection portion which is inserted into the opening of the cap and passes through the concave portion of the cap, and
wherein, when the connection portion of the socket passes through the concave portion of the cap and is rotated, the connection portion of the socket is coupled to the cap and is electrically connected to the connector of the light source.

20 . The lighting device of claim 19 ,
wherein the connector of the light source has a predetermined elasticity, wherein the connector of the light source has one end connected to the substrate and the other end protruding outward from the substrate, and wherein, when the connection portion of the socket passes through the concave portion of the cap and is rotated, the other end of the connector is directly connected to the connection portion of the socket.

21 . A lighting device comprising:
a cover part which has an end and a cap disposed on the end, wherein the cap has an opening and a concave portion connected with the opening; a light source which comprises a substrate disposed within the cover part, a light emitting device disposed on the substrate, and a connector disposed on the substrate; and a socket comprising a body disposed on the cap, a pin disposed on an outer surface of the body, and a connection portion disposed on an inner surface of the body, wherein the connection portion is inserted into the opening of the cap and passes through the concave portion of the cap,
when the socket is rotated at a predetermined angle, the connection portion of the socket is electrically and mechanically connected to the connector of the light source, and is mechanically connected to the cap of the cover part.

22 . The lighting device of claim 21 , wherein the connector of the light source has a predetermined elasticity.

Assignees

• Lg Innotek Co Ltd

Inventors

• Min Byeong Guk
• Lee Seung Hyuk

Classifications

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title

• F21V19/0035

  the fastening means being capable of simultaneously attaching of an other part, e.g. a housing portion or an optical component · CPC title

• F21V23/06

  the elements being coupling devices {, e.g. connectors} · CPC title

• H01R33/942

  for tubular fluorescent lamps · CPC title

• F21V15/015 Primary

  Devices for covering joints between adjacent lighting devices; End coverings · CPC title