System for insulating high current busbars

Patent metadata

Field	Value
Publication number	US-10487413-B2
Application number	US-201315101352-A
Country	US
Kind code	B2
Filing date	Dec 3, 2013
Priority date	Dec 3, 2013
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

A method of treating a surface of an aluminum busbar includes pre-conditioning the surface of the busbar, anodizing one portion of the surface of the busbar, and plating another portion of the surface of the busbar with at least one metal. A fixture used to secure a busbar for a treatment process is also disclosed.

First claim

What is claimed is:

1. A method of treating a surface of an aluminum busbar, the method comprising:
pre-conditioning the surface of the busbar;
anodizing one portion of the surface of the busbar; and
plating another portion of the surface of the busbar with at least one metal,
wherein anodizing one portion of the surface of the busbar includes securing the busbar in a sealing jig to expose the one portion of the surface of the busbar, the sealing jig including a jig top having a planar downwardly facing surface configured to engage a top surface of the busbar, a jig bottom having a planar upwardly facing surface configured to engage a bottom surface of the busbar, and crab pliers configured to apply a force on the jig top and the jig bottom to secure the busbar in place, the sealing jig further including a cylindrical anode for performing an anodizing process, the anode having a cylindrical tip having a diameter larger than a diameter of the anode, a directional pin to orient the sealing jig in a correct position, a first seal provided on the planar downwardly facing surface of the jig top, and a second seal provided on the planar upwardly facing surface of the jig bottom and configured to seal the anode adjacent the tip with respect to the jig bottom, and a third seal provided on the planar upwardly facing surface of the jig bottom and configured to seal the directional pin with respect to the jig bottom, the anode extending through the jig bottom so that the anode extends from a downwardly facing surface of the jig bottom to the planar upwardly facing surface of the jig bottom to expose the tip of the anode on the planar upwardly facing surface of the jig bottom, the directional pin extending from the planar upwardly facing surface of the jig bottom, the directional pin being received within an opening formed in the busbar.

2. The method of claim 1 , wherein anodizing one portion of the surface of the busbar further includes de-smutting the busbar with an acid solution.

3. The method of claim 2 , wherein anodizing one portion of the surface of the busbar further includes applying an anodizing agent.

4. The method of claim 3 , wherein anodizing one portion of the surface of the busbar further includes coloring the busbar with a water/dye solution and sealing the busbar with water.

5. The method of claim 1 , further comprising applying a protective layer on the one portion of the surface of the busbar.

6. The method of claim 5 , wherein the protective layer is fabricated from PTFE.

7. The method of claim 5 , wherein the sealing jig is removed after applying the protective layer.

8. The method of claim 5 , wherein the plating process includes plating the another portion of the busbar with at least one zinc coating.

9. The method of claim 8 , wherein the plating process further includes plating the another portion of the busbar with a nickel coating.

10. The method of claim 9 , wherein the plating process further includes plating the another portion of the busbar with a tin coating.

11. The method of claim 10 , wherein the plating process further includes neutralizing the another portion of the busbar, and subjecting the another portion of the busbar to a post dip step.

Assignees

• Schneider Electric It Corp

Inventors

• Silberbauer Kristian
• Andersen Claus Aabjerg

Classifications

• C25D11/08

  containing inorganic acids · CPC title

• C25D11/005

  Apparatus specially adapted for electrolytic conversion coating (apparatus in general for electrolytic coating C25D17/00) · CPC title

• C25D11/243

  using organic dyestuffs · CPC title

• C25D3/12

  of nickel or cobalt · CPC title

• C23C18/54

  Contact plating, i.e. electroless electrochemical plating · CPC title