Connection device for signal wire

A connection device, comprising:

• at least one electrically conducting plate;
• at least one first holding member mounted on a first side of the electrically conducting plate;
• at least one second holding member mounted on a second side of the electrically conducting plate;
• at least one locking member extended through the first holding member, the electrically conducting plate and the second holding member to clamp the electrically conducting plate between the first holding member and the second holding member;
• wherein the first holding member has a face formed with a plurality of protruding clamping portions rested on the first side of the electrically conducting plate so that the electrically conducting plate is clamped between the first holding member and the second holding member;
• the electrically conducting plate has a distal end protruding outwardly from the first holding member and the second holding member;
• the electrically conducting plate has a mounting portion having an end formed with an electrically conducting portion protruding outwardly from the first holding member and the second holding member, and the connection device further comprises a signal wire having a periphery provided with an insulating layer and an inside provided with at least one metal foil located in the insulating layer, wherein the electrically conducting portion of the electrically conducting plate is inserted into the signal wire and electrically connected to the metal foil of the signal wire, the first holding member and the second holding member are rested on the insulating layer of the signal wire.