Lamp assembly

• US 7,556,396 B2
• Filed: 11/08/2007
• Issued: 07/07/2009
• Est. Priority Date: 11/08/2007
• Status: Expired due to Fees

• Current Assignee: Ledtech Electronics Corp.
• Original Assignee: Ledtech Electronics Corp.
• Inventors: Liu, Yu-Yang, Liu, Yen-Fu, Kuo, Shu-Hsiung
• Primary Examiner(s): Ward; John A
• Application Number:
  US11/979,746
• Publication Number:
  US 20090122543A1
• Time in Patent Office: 607 Days
• Field of Search: 362/240, 362/217, 36221714-21716, 362/649, 439/240, 439/241, 439/336
• US Class Current: 362/217.01
• CPC Class Codes: F21K 9/272 Details of end parts, i.e. the parts that connect the light source to a fitting; Arrangement of components within end parts F21K9/278 takes precedence
• CPC Class Codes: F21K 9/65 specially adapted for changing the characteristics or the distribution of the light, e.g. by adjustment of parts
• CPC Class Codes: F21V 14/02 by movement of light sources in vehicle head lamps F21S41/657
• CPC Class Codes: F21Y 2103/00 Elongate light sources, e.g. fluorescent tubes
• 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

A lamp assembly includes at least one electrical socket and a tube. The electrical socket includes an insulating body and two connectors set in the insulating body. The insulating body has an insertion hole. The two connectors have a contact plate exposed in the insertion hole. The tube has two terminal lugs disposed at least at one end thereof. The end of the tube and the two terminal lugs are inserted and installed in the insertion hole of the electrical socket. The terminal lugs electrically contact the contact plate of the connector. The end of the tube installed in the insertion hole is rotatable, the lighting angle can be adjusted. Thus, the tube can be electrically connected with the electrical socket quickly, the tube is lit instantly, and the tube can be rotated to adjust the lighting angle.

Claims

1. A lamp assembly, comprising:

two electrical sockets, each socket including an insulating body and a connector set in the insulating body, wherein the insulating bodies each include a clamp portion arranged at an exterior surface thereof, the clamp portion of the first insulating body being formed to mate with a further clamp portion of a second insulating body of another lamp assembly, each of the insulating bodies has an insertion hole formed therein, the two connectors have two pairs of contact plates respectively, the two pairs of contact plates being parallel and displaced each to the other, an inner pair of contact plates being annular-shaped and disposed in the insertion holes of the insulating bodies, an outer pair of contact plates extending beyond an outer surface of the insulating bodies; and

a tube including two terminal lugs disposed at each end thereof, wherein the two ends of the tube are inserted and installed respectively in an insertion hole of one of the electrical sockets;

the inner pair of contact plates having an extended contact area defined by said annular shape, the terminal lugs making frontal electrical contact with the extended area of the contact plates of the connectors when one end of the tube has been installed in the first insulating body and another end of the tube has been installed in the second insulating body;

wherein the tube is rotatable, and the lighting angle of the tube is thereby adjustable.

2. The lamp assembly as claimed in claim 1, wherein the insertion hole has a round shape corresponding to the end of the tube.

3. The lamp assembly as claimed in claim 1, wherein the insulating body further includes an inner support surface annularly surrounding the insertion hole, and the end of the tube is sustained against the inner support surface.

4. The lamp assembly as claimed in claim 1, wherein the insulating body includes an orientation notch, and an obstruction surface formed at each end of the orientation notch;

wherein the end of the tube has a protruding portion movable disposed in the orientation notch, the protruding portion abuts the obstruction surface of the orientation notch.

5. The lamp assembly as claimed in claim 1, wherein the tube is an Light Emitting Diode (LED) tube.

6. The lamp assembly as claimed in claim 5, wherein the tube includes a front casing, a rear casing, a printed circuit board, and two end caps, and a hollow cavity surrounded by the front casing and the rear casing;

wherein the front casing is translucent, the printed circuit board is arranged in the rear casing, the printed circuit board has a plurality of light emitting diodes (LEDs), the two end caps enclose two opposite ends of the front casing and the rear casing, wherein the two terminal lugs are disposed on one of the end caps and are electrically connected with the printed circuit board.

7. The lamp assembly as claimed in claim 6, wherein each of the two terminal lugs has a first terminal portion and a second terminal portion;

wherein the first terminal portion protrudes out of one of the end caps electrically connecting to one of the contact plates of the connectors in the socket, the second terminal portion extends into one of the end caps electrically connecting to the printed circuit board.