Captive splice assembly for electrical bus and method for using same

• US 6,435,888 B1
• Filed: 05/18/2001
• Issued: 08/20/2002
• Est. Priority Date: 05/18/2001
• Status: Active Grant

• Current Assignee: Square D Company (Schneider Electric SE)
• Original Assignee: Square D Company (Schneider Electric SE)
• Inventors: Reed, Thomas W Jr.
• Primary Examiner(s): Patel, Tulsidas
• Application Number:
  US09/861,470
• Time in Patent Office: 459 Days
• Field of Search: 439/213, 439/359, 439/210, 174/88.B, 174/68.2
• US Class Current: 439/213
• CPC Class Codes: H01R 4/30 utilising a screw or nut clamping member H01R4/50 takes precedence; utilising a clamping member acted on by screw or nut H01R4/38; for coaxial cables H01R9/0521
• CPC Class Codes: H02G 5/007 Butt joining of bus-bars by means of a common bolt, e.g. splice joint electrically conductive connections characterised by contacting members H01R4/58

Abstract

A method and captive splice assembly for electrically and structurally connecting a pair of bus sections. The assembly includes a housing, which holds captive a set of splice bars. The housing has a set of captive nuts, which are engaged by a set of bolts which pass through the splice bars. During installation, the captive splice bars are held fixed in the housing by way of notches in the splice bars and protruding tangs in the housing. After installation, the splice bars are interleaved with the bars of a pair of bus sections, and the bolts compress the splice bars and sections of bus, forming an electrical and structural connection between the pair of bus sections. The housing is fabricated of either a non-magnetic metal or plastic material.

Claims

1. A captive splice assembly for electrically and structurally connecting a first bus bar to a second bus bar, said assembly comprising:

a first wall;

a second wall secured to said first wall along a common first edge, said second wall being oriented generally perpendicular to said first wall and including a threaded aperture;

a third wall secured to said second wall along a common second edge, said third wall being oriented generally parallel to, and in opposition to, said first wall,

a splice bar located between said first wall and said third wall, said splice bar being oriented generally parallel to said second wall and defining an aperture, said splice bar aperture being aligned with said threaded aperture included in said second wall;

a connector joining said splice bar to one of said first wall and said third wall; and

an elongated threaded connector adapted to extend through said aperture in said splice bar and threadably engage said threaded aperture to secure said first bus bar and said second bus bar between said splice bar and said second wall.

2. The assembly of claim 1 further comprising a second elongated threaded connector adapted to extend through a second aperture in said splice bar and threadably engage a second threaded aperture included in said second wall to secure said first bus bar and said second bus bar between said splice bar and said second wall.

3. The assembly of claim 1 wherein said connector includes a notch in said splice bar and a protrusion extending into a space between said first wall and said third wall.

4. The assembly of claim 1 wherein said threaded aperture is a nut attached to said second wall.

5. The assembly of claim 1 further comprising a spacer between said splice bar and said second wall, said spacer having a spacer thickness greater than a thickness of said first bus bar.

6. The assembly of claim 1 further comprising a means for separating said splice bar and said second wall, said means for separating permitting passage of said first bus bar between said splice bar and said second wall.

7. The assembly of claim 1 further comprising a means for separating said splice bar and said second wall, said means for separating defining a space between said splice bar and said second wall equal to a thickness of said first bus bar.

8. A captive splice assembly for electrically and structurally connecting a pair of bus sections, said assembly comprising:

a housing having a top side, a bottom side substantially parallel to, and in opposition to, said top side, and a back side connecting said top side and said bottom side, said back side having a plurality of threaded apertures;

a splice bar defining a plurality of splice bar apertures and adapted to fit between said top side and said bottom side, said splice bar positioned substantially parallel to said back side;

a connector joining said splice bar to said housing; and

a plurality of threaded members, each of said plurality of threaded members extending through one of said plurality of splice bar apertures and threadably engaging a corresponding one of said plurality of threaded apertures;

whereby said housing containing said splice bar is slidably positionable along the pair of bus sections, and said captive splice assembly connects the pair of bus sections.

9. The assembly of claim 8 wherein said connector includes a protrusion extending into said housing and a notch in said splice bar, said notch in register with said protrusion wherein said protrusion restrains said splice bar from moving in a direction parallel to said back side.

10. The assembly of claim 8 wherein said housing is fabricated of a non-magnetic metal.

11. The assembly of claim 8 wherein said housing is fabricated of a plastic material.

12. The assembly of claim 8 wherein said plurality of threaded housing apertures include a plurality of nuts that are fixedly attached to said housing.

13. The assembly of claim 8 wherein said plurality of threaded apertures include a plurality of nuts that are fixedly attached to said splice bar.

14. The assembly of claim 8 further comprising a spacer disposed between said splice bar and said back side of said housing, said spacer having a thickness substantially equal to that of a bus bar included in the bus section.

15. The assembly of claim 8 further comprising a spacer disposed between said splice bar and a second splice bar, said second splice bar positioned substantially parallel to said back side, said spacer having a thickness substantially equal to that of a bus bar included in the bus section.

16. The assembly of claim 8 further comprising a means for separating said splice bar and said back side, said means for separating permitting passage of a bus bar included in the bus section between said splice bar and said back side.

17. A captive splice assembly for electrically and structurally connecting a first bus bar to a second bus bar, said assembly comprising:

a first wall;

a second wall secured to said first wall along a common first edge, said second wall being oriented generally perpendicular to said first wall and including a second wall aperture;

a third wall secured to said second wall along a common second edge, said third wall being oriented generally parallel to, and in opposition to, said first wall,

a first splice bar located between said first wall and said third wall, said first splice bar being oriented generally parallel to said second wall and including a threaded aperture, said threaded aperture being aligned with said second wall aperture;

a first connector joining said first splice bar to one of said first wall and said third wall; and

an elongated threaded connector adapted to extend through said threaded aperture in said first splice bar and threadably engage said threaded receptor to secure said first bus bar and said second bus bar to said first splice bar.

18. The assembly of claim 17, further comprising a second splice bar located between said first wall and said third wall, said second splice bar being oriented generally parallel to said second wall and including an aperture, said second splice bar aperture being aligned with a second aperture in said second wall;

and

a second connector joining said second splice bar to one of said first wall and said third wall;

wherein said elongated threaded connector is further adapted to extend through said second splice bar aperture and threadably engage said threaded receptor to secure said first bus bar and said second bus bar between said first splice bar and said second splice bar.