Primary conductor arrangement for a system for the inductive transmission of electrical energy

Abstract

A primary conductor arrangement for a system for the inductive transmission of electrical energy, wherein the conductor arrangement includes an outgoing line and a return line that extend parallel to one another and can be connected to a current source in order to apply an electric current to the outgoing line and the return line. The conductor arrangement is divided into a plurality of adjacent sections, wherein each section contains an outgoing line and a return line as well as connection lines that connect the outgoing line and the return line. The sections are arranged relative to one another such that two adjacent sections overlap in a region near their connection line.

1 . A primary conductor arrangement for a system for the inductive transmission of electrical energy, wherein the conductor arrangement comprises an outgoing line and a return line that extend parallel to one another and can be connected to a current source in order to apply an electric current to the outgoing line and the return line, characterized in that the conductor arrangement is divided into a plurality of adjacent sections, wherein each section contains an outgoing line and a return line as well as connection lines that connect the outgoing line and the return line, and in that the sections are arranged relative to one another such that two adjacent sections overlap in a region near their connection line.  
   
   
       2 . The primary conductor arrangement according to  claim 1 , characterized in that the length L of the overlapping region approximately corresponds to the length of the connection lines.  
   
   
       3 . The primary conductor arrangement according to  claim 1 , characterized in that the successive sections overlap in the longitudinal direction of the primary conductor arrangement.  
   
   
       4 . The primary conductor arrangement according to  claim 1 , characterized in that the outgoing line and the return line of one section lie on top of the outgoing line and the return line of the adjacent section in the overlapping region.  
   
   
       5 . The primary conductor arrangement according to  claim 1 , characterized in that the free ends of one of the outgoing line and the return line of each section are connected to a pair of supply lines for connecting the one of the outgoing line and the return line to a current source, wherein the supply lines extend approximately perpendicular to the one of the outgoing line and return line.  
   
   
       6 . The primary conductor arrangement according to  claim 5 , characterized in that the two supply lines of one section that form a pair respectively contain a straight region and an adjacent curved region, with the straight regions extending parallel to and closely adjacent to one another, and with the curved regions of the two supply lines crossing on top of one another.  
   
   
       7 . A system for the inductive transmission of electrical energy, with a primary conductor arrangement according to  claim 1  for the transmission of electrical energy to a consumer that can be displaced along the primary conductor arrangement, wherein the consumer contains an energy receiving unit for the inductive reception of electrical energy from the magnetic field generated by the primary conductor arrangement.  
   
   
       8 . The system according to  claim 7 , characterized in that each section of the primary conductor arrangement is supplied with an electric current by a separate current source.  
   
   
       9 . The system according to  claim 7  characterized by two intersecting primary conductor arrangements, each comprising a primary conductor arrangement for a system for the inductive transmission of electrical energy, wherein the conductor arrangement comprises an outgoing line and a return line that extend parallel to one another and can be connected to a current source in order to apply an electric current to the outgoing line and the return line, characterized in that the conductor arrangement is divided into a plurality of adjacent sections, wherein each section contains an outgoing line and a return line as well as connection lines that connect the outgoing line and the return line, and in that the sections are arranged relative to one another such that two adjacent sections overlap in a region near their connection line, and wherein the overlapping regions of the sections of each conductor arrangement lie outside an intersecting region.  
   
   
       10 . The system according to  claim 7 , characterized in that resonance tuning is realized by respectively inserting at least one tunable capacitor into the outgoing line and the return line of each section of the conductor arrangement, wherein said tunable capacitor is connected to one of the outgoing line and the return line by means of branch lines, and wherein the branch lines of the outgoing line and the branch lines of the return line are arranged offset relative to one another by a distance A that is at least as large as the electrically effective length of the energy receiving unit of the consumer in the longitudinal direction as referred to the primary conductor arrangement.