LED lamp with open structure

• US 9,163,813 B2
• Filed: 02/14/2013
• Issued: 10/20/2015
• Est. Priority Date: 02/16/2012
• Status: Expired due to Fees

• Current Assignee: Fernando Roberto Sanchez, Gilmar Aparecido De Souza
• Original Assignee: Fernando Roberto Sanchez, Gilmar Aparecido De Souza
• Inventors: Sanchez, Fernando Roberto, Aparecido de Souza, Gilmar
• Primary Examiner(s): Mai, Anh
• Assistant Examiner(s): FEATHERLY, HANA SANEI
• Application Number:
  US13/767,570
• Publication Number:
  US 20130223080A1
• Time in Patent Office: 978 Days
• Field of Search: 362/311.02
• US Class Current: 1/1
• 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: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• CPC Class Codes: F21K 9/90 Methods of manufacture
• CPC Class Codes: F21V 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/00 Supporting, suspending, or attaching arrangements for lighting devices F21V17/00, F21V19/00 take precedence; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q, stands for supporting apparatus or articles in general F16M11/00; Hand grips
• CPC Class Codes: F21V 23/006 the substrate being distinct from the light source holder
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 3/0625 the material diffusing light, e.g. translucent plastics
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05K 1/0306 Inorganic insulating substrates, e.g. ceramic, glass
• CPC Class Codes: H05K 2201/10106 Light emitting diode [LED]

Abstract

A lamp (1) has one or more LED'"'"'s (2), supported above an open structure (7). The lamp (1) is made from thermoplastic material and has a base (3) including threads (4) and a lower contact (5). A thermoplastic body (6) of larger diameter is located above the base and has an open structure portion (7) preferably shaped as a truncated inverted and open cone. An upper part of the cone supports a circuit board (8) with a laminar form that supports the light emitting diodes (2). A upper semispherical element (9) is located over the body (6) and forms a light diffuser. An upper center of the base (3) has an internal electronic circuit (10) for connecting to a power source. The LED lamp with the open structure eases installation, has lower weight and cost, allows easy recycling and provides greater security for users.

Claims

1. A light emitting diode lamp consisting essentially of:

one or more light emitting diodes;

a base made from a thermoplastic material, provided with a lower contact;

a thermoplastic body of larger diameter disposed above the base and having an extreme upper portion which has an open structure;

a circuit board consisting of an aluminum base with a high thermal diffusivity coating and having a laminar form located in an upper part of said upper portion, above the open structure, the circuit board incorporating the one or more light emitting diodes mounted on the circuit board, the circuit board having a thermal diffusivity sufficient to eliminate use of a heatsink; and

,

an upper semispherical element forming a light diffuser disposed above the thermoplastic body, an upper center of the base having an internal electronic circuit connected to said lower contact for receiving power from an external power source, and for providing power to said light emitting diodes.

2. The light emitting diode lamp of claim 1 wherein the upper portion is in the shape of a truncated inverted and open cone.

3. The light emitting diode lamp of claim 1, wherein the base has a cylindrical form and includes an external thread.

4. The light emitting diode lamp of claim 1, wherein the thermoplastic body has a cylindrical shape.

5. The light emitting diode lamp of claim 1, wherein the thermoplastic body has a prismatic shape.

6. The light emitting diode lamp of claim 1, wherein the upper semispherical element is translucent.

7. The light emitting diode lamp of claim 1, wherein the upper semispherical element is manufactured in different colors.

8. The light emitting diode lamp of claim 1, wherein the thermoplastic material is a colored material.

9. The light emitting diode lamp of claim 1, wherein the thermoplastic body and thermoplastic base are made by thermoplastic processing methods.

10. The light emitting diode lamp of claim 1, wherein the open structure portion has a shape selected from the group consisting of cylindrical, prismatic, and other shapes suitable for use.

11. The light emitting diode lamp of claim 1, wherein the upper element has a form selected from the group consisting of elliptical, flat, and other forms suitable for use.

12. The light emitting diode lamp of claim 1 wherein the high diffusivity coating comprises a nanoceramic material.