BASE FOR AN ELECTRIC LAMP

• US 20100041284A1
• Filed: 01/11/2008
• Published: 02/18/2010
• Est. Priority Date: 01/24/2007
• Status: Abandoned Application

• Current Assignee: OSRAM GmbH (Ams-Osram AG)
• Original Assignee: OSRAM GmbH (Ams-Osram AG)
• Inventors: Menzinger, Robert, Beck, Martin
• Application Number:
  US12/448,710
• Publication Number:
  US 20100041284A1
• Time in Patent Office: Days
• US Class Current: 439/886
• CPC Class Codes: H01K 1/465 with means to prevent loosening or unauthorised removal of the lamp
• CPC Class Codes: H01R 13/03 characterised by the material, e.g. plating, or coating materials
• CPC Class Codes: H01R 33/0827 characterised by the contacts
• CPC Class Codes: Y10T 29/49179 by metal fusion bonding
• CPC Class Codes: Y10T 29/49181 by deforming
• CPC Class Codes: Y10T 29/49224 with coating

Abstract

The invention relates to a holder for an electric lamp (1, 1′) with contact pins (7, 8; 7′, 8′) extending to the outside for making electrical contact with the lamp (1, 1′), wherein the contact pins (7, 8; 7′, 8′) at least in some regions are coated with a layer (11) that is electrically conductive and/or that protects the contact pins (7, 8; 7′, 8′) from corrosion. The invention also relates to a method for the production of a holder for an electric lamp.

Claims

1. A base for an electric lamp (1, 1′

) with outwardly extending contact pins (7, 8;

7′

, 8′

) for making electrical contact with the lamp (1, 1′

),

characterized in that

at least regions of the contact pins (7, 8;

7′

, 8′

) are coated with a layer (11) which is electrically conductive and/or protects the contact pins (7, 8;

7′

, 8′

) from corrosion.

2. The base as claimed in claim 1,

characterized in that

the layer (11) is an enamel which has particles of an electrically conductive material.

3. The base as claimed in claim 2,

characterized in that

the layer (11) comprises particles of iron, aluminum, copper, silver, carbon, electrically conductive ceramic or a particle mixture comprising said elements.

4. The base as claimed in claim 1,

characterized in that

the outer sides of the contact pins (7, 8;

7′

, 8′

) are covered over the entire area by the layer (11).

5. The base as claimed in claim 1,

characterized in that

the contact pins (7, 8;

7′

, 8′

) are formed from electrically conductive material.

6. The base as claimed in claim 1,

characterized in that

the contact pins (7, 8;

7′

, 8′

) are hollow.

7. The base as claimed in claim 1,

characterized in that

at least regions of a base housing (9, 9′

), which accommodate the contact pins (7, 8;

7′

, 8′

), are coated with the layer (11).

12. The base as claimed in claim 1, characterized in that the contact pins (7, 8;

7′

, 8′

) are formed from aluminum or from an aluminum-containing material.

8. A method for producing a base (3, 3′

) for an electric lamp (1, 1′

), in which contact pins (7, 8;

7′

, 8′

) for making electrical contact with the lamp (1, 1′

) are formed on the base (3, 3′

),

characterized in that

at least regions of the contact pins (7, 8;

7′

, 8′

) are coated with a layer (11) which is electrically conductive and/or protects the contact pins (7, 8;

7′

, 8′

) from corrosion.

9. The method as claimed in claim 8,

characterized in that

a wire comprises aluminum, is coated with the layer (11) and, after the coating of the wire, is shaped to form the contact pin (7, 8;

7′

, 8′

).

10. The method as claimed in claim 8 or 9,

characterized in that

a power supply line (5, 6), which is plugged into a hollow contact pin (7, 8;

7′

, 8′

), of an electrode (4) of the lamp (1, 1′

) is connected to the contact pin (7, 8;

7′

, 8′

) by means of crimping or welding.

11. The method as claimed in claim 8 or 9,

characterized in that

the composition of the layer (11) is such that it withstands mechanical deformations such as may occur in the case of deep-drawing, upsetting, crimping or pinch-sealing or the like during the production of the base.

13. The method as claimed in claim 8,

characterized in that

a wire which at least proportionally comprises aluminum, is coated with the layer (11) and, after the coating of the wire, is shaped to form the contact pin (7, 8;

7′

, 8′

).