Structure and method for connecting a flat cable to bus bars

A method of connecting a flat cable to bus bars comprising:

• preparing bus bars in the form of strips;
• stripping off a coating from an end portion of a flat cable, whereby conductor strips are exposed;
• adhering said conductor strips onto said bus bars by welding, thereby forming a joint section having a first face and a second face, and including strip layers and strip gaps;
• covering said first face with a thermoplastic insulator resin sheet, while covering said second face with an insulator resin sheet, respectively;
• providing a device including a pressing plane with alternating concave and convex configurations;
• and
• heating said device and pressing said pressing plane onto said thermoplastic insulator resin sheet, whereby said thermoplastic insulator resin sheet adheres on said strip layers by virtue of said concave configurations, while said thermoplastic insulator resin sheet adheres on said insulator resin sheet in said strip gaps by virtue of said convex configurations, thereby forming insulating grooves.

A method of connecting a flat cable to bus bars comprising:

• preparing an insulator resin sheet;
• arranging bus bars in the form of strips on said insulator resin sheet;
• stripping off a coating from an end portion of a flat cable, whereby conductor strips are exposed;
• adhering said conductor strips onto said bus bars by welding, thereby forming a joint section having a first face and a second face, and including strip layers and strip gaps;
• covering said first face with a thermoplastic insulator resin sheet, while covering said second face with an insulator resin sheet, respectively;
• providing a device including a pressing plane with alternating concave and convex configurations;
• and
• heating said device and pressing said pressing plane onto said thermoplastic insulator resin sheet, whereby said thermoplastic insulator resin sheet adheres to said strip layers by virtue of said concave configurations, while said thermoplastic insulator resin sheet adheres to said insulator resin sheet in said strip gaps by virtue of said convex configurations, thereby forming insulating grooves.

A method of connecting a flat cable to bus bars comprising:

• preparing bus bars in the form of strips;
• stripping off a coating from an end portion of a flat cable;
• whereby conductor strips are exposed;
• adhering said conductor strips onto said bus bars by welding, thereby forming a joint section having a first face and a second face, and including strip layers and strip gaps;
• covering said first face and said second face with a thermoplastic insulator resin sheet, respectively;
• providing a first device and a second device respectively including a pressing plane with alternating concave and convex configurations;
• and
• heating said first and second devices and pressing said pressing plane onto said first and second faces, respectively, whereby said thermoplastic insulator resin sheets adheres on said strip layers by virtue of said concave configurations, while said thermoplastic insulator resin sheets adhere to each other in said strip gaps by virtue of said convex configurations, thereby forming insulating grooves.