WATERTIGHT LED LAMP

• US 20090021951A1
• Filed: 07/12/2008
• Published: 01/22/2009
• Est. Priority Date: 07/13/2007
• Status: Active Grant

• Current Assignee: Santa's Best
• Original Assignee: 1 Energy Solutions Incorporated
• Inventors: Yu, Jing Jing
• Granted Patent: US 7,784,993 B2
• Time in Patent Office: Days
• US Class Current: 362/375
• CPC Class Codes: H05B 45/40 Details of LED load circuits
• CPC Class Codes: H05B 45/54 in a series array of LEDs

Abstract

Disclosed is a three-piece light emitting diode lamp. The lamp comprises a lamp holder that encapsulates and seals various connectors and connections. A removable light emitting diode is inserted into contact sockets so that the light emitting diode can be easily replaced. Various techniques are used to provide proper polarity for placement of the light emitting diode in the contact sockets. A lens cover is engaged in a ring cavity between an inner annular wall and an outer annular wall that seal and hold the lens cover to the lamp holder and provide a watertight seal.

Claims

1. A watertight, light emitting diode lamp comprising:

a lens cover having an annular neck that forms a lens cover opening;

a light emitting diode having at least two light emitting diode leads, said leads having a crimp formed therein so as to create contact surfaces on said light emitting diode leads;

a lamp holder comprising;

at least two light emitting diode sockets that have conductive socket contact surfaces that are releasably engaged by said contact surfaces on said light emitting diode leads, so that said light emitting diode can be replaced;

at least two wire connectors that are conductively connected to said light emitting diode socket conductors and to at least two power leads;

a housing comprising a plastic insulating material that surrounds and encloses said light emitting diode sockets, said light emitting diode socket conductors and said wire connectors to seal said light emitting diode sockets, said light emitting diode socket conductors and said wire connectors from moisture and provide electrical isolation between said light emitting diode sockets, said light emitting diode socket conductors and said wire connectors, said plastic insulating material formed to provide an inner annular wall and an outer annular wall that create a ring cavity having a size that substantially matches said annular neck of said lens cover to form a watertight seal between said lens cover and said lamp holder.

2. The light emitting diode lamp of claim 1 wherein said inner annular wall protrudes outwardly from said housing to form an extended portion of said inner annular wall that engages an inner surface of said annular neck along said extended portion of said inner annular wall and seals said inner surface of said annual neck along said extended portion of said inner annular wall.

3. The light emitting diode lamp of claim 1 wherein said outer annular wall protrudes outwardly from said housing to form an extended portion of said outer annular wall that engages an outer surface of said annular neck along said extended portion of said outer annular wall and seals said outer surface of said annular neck along said extended portion of said outer annular wall.

4. The light emitting diode lamp of claim 1 wherein said light emitting diode sockets have different lengths and said light emitting diode leads have different lengths that substantially match said different lengths of said light emitting diode sockets so that correct polarity is provided between said light emitting diode and said light emitting diode sockets.

5. The light emitting diode lamp of claim 1 wherein said light emitting diode sockets have different shaped openings and said light emitting diode leads have different shapes that substantially match said different shaped openings so that correct polarity is provided between said light emitting diode and said light emitting diode sockets.

6. The light emitting diode lamp of claim 1 further comprising:

a ring formed in said ring cavity that aligns with an annular indentation in said neck of said lens cover that holds and further seals said neck in said ring cavity.

7. The light emitting diode lamp of claim 1 further comprising:

a crossover device that is disposed in said housing between said at least two light emitting diode sockets;

crossover connector leads that are conductively connected to said crossover device and said at least two light emitting diode socket connectors.

8. The light emitting diode lamp of claim 1 further comprising:

a first power lead and a second power lead connected to a first wire connector of said plurality of wire connectors in said light emitting diode lamp;

a third power lead connected to a second wire connector of said plurality of wire connectors in said light emitting diode lamp so that said light emitting diode lamp can be connected in parallel with at least one additional light emitting diode lamp.

9. A method of manufacturing an light emitting diode lamp comprising:

molding an insulating plastic housing around at least two light emitting diode sockets that have conductive socket contact surfaces, at least two light emitting diode socket conductors that are conductively connected to said light emitting diode sockets and at least two wire connectors that are conductively connected to said light emitting diode socket connectors and to at least two power leads, to provide an insulated housing that seals said light emitting diode sockets, said light emitting diode socket conductors and said wire connectors from moisture and provides electrical isolation between said light emitting diode sockets, said light emitting diode socket conductors and said wire connectors;

forming an inner annular wall in said housing;

forming an outer annular wall in said housing that creates a ring cavity between said inner annular wall and said outer annular wall that has a pre-selected size;

providing an light emitting diode that has at least two light emitting diode leads;

forming a crimp in said light emitting diode leads that create contact surfaces on said light emitting diode leads;

inserting said light emitting diode leads into said light emitting diode sockets such that said contact surfaces of said light emitting diode leads slidingly and releasably engage said light emitting diode sockets to provide a conductive contact between said light emitting diode leads and said light emitting diode sockets while allowing said light emitting diode to be removed and replaced with another light emitting diode;

inserting a lens having an annular neck into said ring cavity such that at least one contact surface of said neck forms a watertight seal with said housing.

10. The method of claim 9 wherein said process of forming said inner annular ring further comprises forming an inner annular ring that protrudes from said housing.

11. The method of claim 9 wherein said process of forming said outer annular ring comprises forming an outer annular ring that protrudes from said housing.