Bulb with light emitting diodes

• US 20070097678A1
• Filed: 11/01/2005
• Published: 05/03/2007
• Est. Priority Date: 11/01/2005
• Status: Abandoned Application

• Current Assignee: Sheng-Li Yang
• Original Assignee: Sheng-Li Yang
• Inventors: Yang, Sheng-Li
• Application Number:
  US11/262,789
• Publication Number:
  US 20070097678A1
• Time in Patent Office: Days
• US Class Current: 362/227
• CPC Class Codes: F21K 9/23 Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
• CPC Class Codes: F21V 23/002 Arrangements of cables or conductors inside a lighting device, e.g. means for guiding along parts of the housing or in a pivoting arm
• CPC Class Codes: F21V 23/06 the elements being coupling devices , e.g. connectors
• 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

A bulb includes a top light-emitting module having a top circuit board and light emitting diodes (LEDs). The top circuit board has first lock slots and wires electrically connected to the LEDs respectively. Vertical light-emitting modules have a vertical circuit board with a first coupling portion and a second coupling portion and LEDs respectively. The first coupling portions are inserted into the first lock slots of the top light-emitting module. A positioning base has a positioning plate and a coupling portion. The positioning plate has second lock slots to engage the second coupling portions respectively. The positioning base has a through hole through the positioning plate and the coupling portion for the wires passing through. A cap is fixed to the coupling portion of the positioning base, and the wires through the through hole are electrically connected to a bottom of the cap.

Claims

1. A bulb, comprising:

a top light-emitting module having a top circuit board and a plurality of light emitting diodes, wherein the top circuit board has a plurality of first lock slots thereon and wires electrically connected to the light emitting diodes respectively;

a plurality of vertical light-emitting modules, each of which has a vertical circuit board and a plurality of light emitting diodes, wherein each of the vertical circuit boards has a first coupling portion and a second coupling portion on two ends thereof respectively, and the first coupling portions are inserted into the first lock slots of the top light-emitting module respectively to electrically connect the vertical light-emitting modules to the top light-emitting module;

a positioning base having a positioning plate and a coupling portion projected from a side of the positioning plate, wherein the positioning plate has a plurality of second lock slots at a side opposite to the coupling portion to engage the second coupling portions of the vertical light-emitting modules respectively, and the positioning base has a through hole through the positioning plate and the coupling portion for the wires passing through;

a cap having a top fixed to the coupling portion of the positioning base, wherein the wires through the through hole are electrically connected to a bottom of the cap.

2. The bulb as defined in claim 1, wherein the top circuit board has a conductor pattern, on which the light emitting diodes are electrically connected.

3. The bulb as defined in claim 1, wherein the vertical circuit board has a conductor pattern, on which the light emitting diodes are electrically connected.

4. The bulb as defined in claim 1, wherein the cap is as same as a conventional bulb cap to be connected to a conventional bulb socket.

5. The bulb as defined in claim 1, wherein the top circuit board has a ground wire, and the cap is coated with an insulating coating on an interior side thereof, such that the ground wire runs through the through hole of the positioning base and is electrically connected to the cap.

6. The bulb as defined in claim 1, wherein the cap has a convex conductive connector at the bottom, on which the wires are connected.

7. The bulb as defined in claim 1, wherein the positioning base further has a transparent shell member projected from the positioning plate to cover the vertical light-emitting modules and to rest a free end thereof on a margin of the top circuit board.

8. The bulb as defined in claim 7, wherein the shell member has bores.