Electrical clamp connector and connecting terminal

Abstract

The invention relates to an electrical clamp connector and connecting terminal that, per pole, has at least two conductor terminal connections oriented in the same direction and an additional connecting contact on the opposite-lying side, which serves for connecting a countercontact external to the terminal. It is proposed for such a terminal to use the especially small-construction design features of a terminal that is produced from a single piece of spring steel sheet and a busbar rod, and to combine these with the new features that the busbar rod has one or two cross projections, which project through the free opening in the spring steel sheet and form the additional connecting contact, which, for example, may be constructed in the form of a socket contact or in the form of a plug-in contact.

What is claimed is: 
     
       1. An electrical clamp connector and connecting terminal, which, per pole, has at least two spring clamp connecting terminals, which are opposite-lying and mirror-symmetric with respect to a central plane, for connection of electrical conductors, in which the electrical conductors can be plugged in from the same connection direction and by means of which the electrical conductors can be electrically connected to a common busbar in the interior of the terminal;
 the busbar having an additional connecting contact, which is arranged in the central plane between the two conductor spring clamp connecting terminals on the side of the electrical clamp connector and connecting terminal facing away from the conductor spring clamp connecting terminal and serves for connecting a countercontact external to the electrical clamp connector and connecting terminal; 
 wherein the conductor spring clamp connections connecting terminals are formed from one piece of spring steel sheet and from a the busbar which is in the form of a busbar rod; 
 wherein two leaf spring tongues, each having tongue ends, are cut out mirror-symmetric to the central plane from the piece of spring steel sheet or are punched out in such a way that the leaf spring tongues each extend perpendicularly to the central plane and their tongue ends each end at a distance from the central plane; 
 the material of the spring steel sheet being punched out between the tongue ends, so that, a free opening is formed in the spring steel sheet; 
 wherein the busbar rod is positioned in the central plane lying against the piece of spring steel sheet such that, in the area of the free opening in the spring steel sheet with the tongue ends of the leaf spring tongues, the busbar rod forms with the tongue ends of the leaf spring tongues the two respective opposite-lying conductor spring clamp connections connecting terminals; 
 whereby, for forming the additional connecting contact, the busbar rod has at least one cross projection arranged in the region of the free opening of the spring steel sheet and penetrating through the free opening in the spring steel sheet such that the busbar rod is positioned on one side of the spring steel sheet and the cross projection or cross projections for forming the additional connecting contact is or are positioned on the other side of the spring steel sheet. 
 
     
     
       2. The electrical clamp connector and connecting terminal according to  claim 1 , wherein the busbar rod has two cross projections in the region of the free opening of the spring steel sheet that jointly create a socket contact. 
     
     
       3. The electrical clamp connector and connecting terminal according to  claim 1 , wherein the busbar rod has one cross projection in the region of the free opening of the spring steel sheet which forms a plug-in contact. 
     
     
       4. The electrical clamp connector and connecting terminal according to  claim 1 , wherein the busbar rod has a V-shaped or U-shaped shape (when viewed in cross section) and, with its margin edges running in the lengthwise direction of the rod, lies against the spring steel sheet;
 and that the cross projection or cross projections of the busbar rod, starting from the margin edges of the busbar rod, project through the free opening of the spring steel sheet. 
 
     
     
       5. An electrical clamp connector and connecting terminal, comprising:
 a common busbar; 
 at least two spring clamp connecting terminals, which are disposed symmetric with respect to a central plane, for connection of respective electrical conductors, in which the electrical conductors can be plugged in from the same connection direction and by means of which the electrical conductors can be electrically connected to the common busbar; 
 the busbar having an additional connecting contact, which is arranged in the central plane between the two conductor spring clamp connecting terminals on the side of the electrical clamp connector and connecting terminal facing away from the conductor spring clamp connecting terminal and serves for connecting a countercontact external to the electrical clamp connector and connecting terminal; 
 the conductor spring clamp connections connecting terminals being formed from one piece of spring steel sheet and the busbar comprises a busbar rod; 
 the piece of spring steel sheet having two leaf spring tongues that are cut out mirror-symmetric to the central plane from the piece of spring steel sheet or are punched out in such a way that the leaf spring tongues each extend away from the central plane and their tongue ends each end at a distance from the central plane; 
 the material of the spring steel sheet being punched out between the tongue ends, so that a free opening is formed in the spring steel sheet; 
 and the busbar rod is positioned in the central plane lying against the piece of spring steel sheet such that, in the area of the free opening in the spring steel sheet with the tongue ends of the leaf spring tongues, the busbar rod forms two respective opposite-lying conductor spring clamp connections connecting terminals; 
 whereby, for forming the additional connecting contact, the busbar rod has at least one cross projection arranged in the region of the free opening of the spring steel sheet and penetrating through the free opening in the spring steel sheet such that the busbar rod is positioned on one side of the spring steel sheet and the cross projection or cross projections for forming the additional connecting contact is or are positioned on the other side of the spring steel sheet. 
 
     
     
       6. The electrical clamp connector and connecting terminal according to  claim 5  wherein the busbar rod has two cross projections in the region of the free opening of the spring steel sheet. 
     
     
       7. The electrical clamp connector and connecting terminal according to  claim 6  wherein the two cross projections create a socket contact. 
     
     
       8. The electrical clamp connector and connecting terminal according to  claim 5  wherein the busbar rod has one cross projection in the region of the free opening of the spring steel sheet. 
     
     
       9. The electrical clamp connector and connecting terminal according to  claim 8  wherein one cross projection in the region of the free opening of the spring steel sheet forms a plug-in contact. 
     
     
       10. The electrical clamp connector and connecting terminal according to  claim 5  wherein the busbar rod has a V-shaped or U-shaped shape (when viewed in cross section) and, with its margin edges running in the lengthwise direction of the rod, lies against the spring steel sheet. 
     
     
       11. The electrical clamp connector and connecting terminal according to  claim 10  wherein the cross projection or cross projections of the busbar rod, starting from the margin edges of the busbar rod, project through the free opening of the spring steel sheet.