System for Connecting Motor Drives

• US 20120264317A1
• Filed: 10/06/2011
• Published: 10/18/2012
• Est. Priority Date: 04/15/2011
• Status: Active Grant

• Current Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Inventors: Balcerak, John A., Winterhalter, Craig R., Van Groll, Thomas H.
• Granted Patent: US 8,585,422 B2
• Time in Patent Office: Days
• US Class Current: 439/212
• CPC Class Codes: H01R 13/44 Means for preventing access to live contacts making use of a switch actuated by engagement of counterpart H01R13/7036
• CPC Class Codes: H01R 13/514 composed as a modular blocks or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
• CPC Class Codes: H01R 13/5213 Covers
• CPC Class Codes: H01R 31/085 Short circuiting bus-strips
• CPC Class Codes: H01R 9/2458 Electrical interconnections between terminal blocks
• CPC Class Codes: H01R 9/2675 Electrical interconnections between two blocks, e.g. by means of busbars
• CPC Class Codes: H02B 13/005 Electrical connection between switchgear cells
• CPC Class Codes: H02G 5/10 Cooling

Abstract

A system for connecting motor drives to each other is disclosed that does not require the use of wire or tools. The system includes an adapter plug and bus bar modules that connect to each other at a conductive receptacle of the adapter plug to define a splice joint at the point of connect of the bus bar modules. The bus bar modules may include insulating covers and insulating clips may overlie the splice joints so that the system is substantially devoid of exposed surfaces of its conductive materials.

Claims

1. A bus bar connector system for removably connecting at least two electronic components to each other, comprising,

a bus bar module that includes

a bus bar with a first blade for connecting to a first electronic component, a second blade for connecting to a second electronic component, and a covered segment extending between and connecting the first and second blades;

a cover that is made from an insulating material and that is connected to the bus bar and extends over the covered segment of the bus bar; and

a clip that engages the bus bar module and is movable between at least first and second positions, such that the clip in the first position overlies at least one of the first and second blades of the bus bar, and the clip in the second position is spaced from the at least one of the first and second blades of the bus bar.

2. The bus bar connector system of claim 1, the cover further comprising a pair of opposing side walls that extends over a pair of opposing side walls of the bus bar and the clip engages and is longitudinally movable with respect to the opposing side walls of the cover.

3. The bus bar connector system of claim 1, wherein the bus bar module includes first and second bus bars that are transversely spaced from each other, the cover extending between and connecting the first and second bus bars to each other while electrically insulating the first and second bus bars from each other.

4. The bus bar connector system of claim 3, wherein the cover includes a first segment that extends over the covered surface of the first bus bar, a second segment that is transversely spaced from the first segment and extends over a covered surface of the second bus bar, and at least one arm that extends between and connects the first and second segments of the cover to each other.

5. The bus bar connector system of claim 3, further comprising an adapter plug that includes a plug housing and a pair of conductive receptacles that are provided in the housing and are insulated from each other, the first and second bus bars of the bus bar module being removably connected to the pair of conductive receptacles of the adapter plug such that the pair of conductive receptacles and first and second bus bars of the bus bar module define two separate paths of electrical conductivity therethrough.

6. The bus bar connector system of claim 1, wherein the bus bar module is a first bus bar module and the system includes,

a second bus bar module having a blade and a covered surface that extends from the blade, and

a splice joint defined between the first and second bus bar modules and that includes a conductive receptacle that holds respective blades of the bus bars of the first and second bus bar modules adjacent to each other, and wherein the clip is made from an insulating material and covers the splice joint so that the covers of the first and second bus bar modules and the clip define a continuously insulated covered length of the combination of the first and second bus bar modules and the splice joint.

7. The bus bar connector system of claim 6, further comprising an adapter plug that includes a plug housing to which the conductive receptacle is mounted so that the splice joint is defined within the plug housing.

8. The bus bar connector system of claim 7, wherein the clip is slidably mounted to the first bus bar module and a portion of the clip can slide beyond the first bus bar module and the plug housing so as to engage a lock on the second bus bar module that prevents sliding movement of the clip with respect to the splice joint.

9. A bus bar connector system, comprising:

an adapter plug that includes a plug housing and a conductive receptacle mounted to the plug housing;

a first bus bar module that includes a bus bar having a first blade that engages the conductive receptacle of the adapter plug;

a second bus bar module that includes a bus bar having a second blade that engages the conductive receptacle of the adapter plug so that a splice joint is defined at the adapter plug, the splice joint connecting the first and second bus bar modules to each other so that the bus bars of the first and second bus bar modules are in electrical communication with each other;

a clip that engages at least one of the adapter plug, the first bus bar module, and the second bus bar module, the clip overlying the splice joint so that the splice joint is enclosed between the clip and the adapter plug.

10. The bus bar connector system of claim 9, further comprising a first cover that is made from an insulating material and that extends over at least a portion of the first bus bar and a second cover that is made from an insulating material and that extends over at least a portion of the second bus bar.

11. The bus bar connector system of claim 10, wherein the clip is made from an insulating material and first and second covers of the first and second bus bar modules extend at least partially under the clip so that the blades of the first and second bus bar modules are enclosed between the clip and the adapter plug.

12. The bus bar connector system of claim 11, wherein the first and second covers and the plug housing have corresponding widths so that the clip can engage and slide between the first and second bus bar modules and the adapter plug.

13. The bus bar connector system of claim 9, further comprising a lock securing the clip over the splice joint, the lock including one of a lock projection and a lock receptacle provided on the clip and the other one of a lock projection and a lock receptacle on one of the adapter plug, the first bus bar module, and the second bus bar module.

14. The bus bar connector system of claim 9, wherein each of the first and second bus bar modules includes a pair of bus bars that are transversely spaced and electrically insulated from each other.

15. The bus bar connector system of claim 14, further comprising a cover that is made from an insulating material and that connects the pair of bus bars to each other and at least partially covers the pair of bus bars within each of the first and second bus bar modules.

16. The bus bar connector system of claim 15, wherein the cover includes a pair of opposing side walls that engage a pair of opposing inwardly facing surfaces of the clip.

17. The bus bar connector system of claim 16, wherein the opposing inwardly facing surfaces of the clip are defined on a pair of side walls of the clip, the clip further including an upper wall that extends between and connects the side walls of the clip to each other, and wherein the upper wall of the clip extends over exposed conductive surfaces of the first and second bus bars and the conductive receptacle of the adapter plug.

18. A bus bar connector system for connecting multiple motor drives to each other, comprising:

a first adapter plug that can connect to a first motor drive and that includes a first conductive receptacle;

a second adapter plug that can connect to a second motor drive and that includes a second conductive receptacle;

a third adapter plug that can connect to a third motor drive and that includes a third conductive receptacle;

a pair of bus bar modules that are longitudinally aligned with each other so that a pair of outwardly positioned ends of the pair of bus bar modules are connected to the first and third adapter plugs and a pair of inwardly positioned ends of the pair of bus bar modules are connected to each other at a splice joint defined at the second adapter plug, the splice joint holding the pair of inwardly positioned ends of the pair of bus bar modules in longitudinally adjacent alignment with each other, so that the pair of bus bar modules interconnect the first motor drive, the second motor drive, and the third motor drive with each other; and

a clip that overlies the splice joint.

19. The bus bar connector system of claim 18, wherein each of the bus bar modules includes a bus bar having a cover that is made from an insulating material and that extends between the respective inwardly and outwardly positioned ends of the bus bar modules.