Electrical connectors – Bus duct – Means to join bus ducts
Patent
1995-08-23
1997-09-30
Paumen, Gary F.
Electrical connectors
Bus duct
Means to join bus ducts
439819, H01R 460
Patent
active
056720700
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a plug connection for connecting two pairs of busbars.
BACKGROUND INFORMATION
In a converter device, the rail of the capacitor bank of the intermediate circuit and the rail of the inverter are screwed together. Because of this screw-coupling of the two pairs of busbars to one another, reductions occur in the cross-section area of the busbars in the region of the screw locations, which means these regions are more loaded electrically than the remaining sections of such busbars. Moreover, in the case of some converter devices, the capacitor bank is arranged spatially in front of the inverter, which means the screw locations are poorly accessible. Possibly the rails have to be lengthened in order to be able to make a screw connection, which can have a negative effect on the inductance value of these busbars.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a connection for pairs of busbars which overcomes the problems of known busbar connection means.
The present invention provides a plug connection for two pairs of busbars, with one free end of one pair of the busbars being formed as a plug and a free end of the other pair of the busbars being formed as a socket for receiving the plug and being fitted with a clamping device which allows an adjustable clamping force to be applied to the socket.
By forming one free end of one pair of busbars as a socket for a plug component of another pair of busbars, with the socket being provided with a clamping device in such a way that an adjustable clamping force acts on the socket, the two pairs of busbars can be fitted into each other. With such a plug connection, the screw connections are dropped, which means the assembly can be considerably simplified and accomplished in a much shorter time. The clamping device provides for the necessary contacting of the busbars of these connecting pairs of busbars. Since the clamping device is adjustable, the plug connection according to the present invention can be adjusted in accordance with the contacting required for a particular application.
In one advantageous specific embodiment of the plug connection of the present invention, the clamping device juts out beyond the socket on both sides. Because of this measure, the parts of the pairs of busbars which are fitted into each other do not need to be further altered, since the tension members of the clamping device are arranged outside of the socket. This provides an especially simple plug connection.
In another advantageous specific embodiment of the plug connection of the present invention, the busbars are bent up at the entry to the socket. In this manner, the plug component of the second pair of busbars can be guided more easily into the socket, since these bent-up busbars serve as a catch-and-guide element for the socket.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 shows a perspective view of two pairs of busbars that are connected together in accordance with the present invention.
FIG. 2 shows a socket formed in a pair of busbars in accordance with the present invention.
FIG. 3 is a side view from the left of the connected busbars of FIG. 1.
DETAILED DESCRIPTION
FIG. 1 shows a perspective view from the right above two pairs of busbars 2 and 4 which are connected to one another in an electrically conductive manner by means of the plug connection 6 according to the present invention. The pair of busbars 2 or 4 consists of 2 busbars 8 and 10 or 12 and 14 which are separated from each other by an insulating layer 16 or 18. This insulating layer 16 or 18 juts out beyond the edges of at least one busbar 8 or 10 and 12 or 14 respectively. The overhang of this insulating layer 16 or 18 is dependent upon the value of the voltage applied to the busbars 8 and 10 or 12 and 14 and upon the environment. The overhang serves to enlarge the clearance leakage path between the two busbars 8 and 10 or 12 and 14 so much that no voltage flashover develops.
As can be gathered from FIG. 1, these two low-induc
REFERENCES:
patent: 3701301 (1972-10-01), Weimer
Paumen Gary F.
Siemens Aktiengesellschaft
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