Electrical connection device

An electrical connection device, comprising:

• a first insulating body;
• a strip-shaped first conductor, accommodated in the first insulating body, wherein the first conductor as a whole is arranged horizontally, and is configured to electrically connect backward with a first docking component, a bottom surface of the first conductor has a front edge, and a contact area extends backward from the front edge;
• a second docking component, comprising a second conductor located below the first conductor, wherein the second conductor has a front end and a rear end opposite to each other and a top surface connecting the front end and the rear end;
• an elastic body, located above the first conductor and downwardly abutting the first conductor;
• a pressing piece, configured to provide a downward force to make the first conductor downwardly abut the second conductor, wherein when the pressing piece applies pressure, the contact area is completely attached to the top surface, the front edge is located between the front end and the rear end and abuts the top surface, and the rear end abuts the contact area;
• and
• a third conductor, accommodated in the first insulating body, and arranged to be vertically symmetric with the first conductor;
• wherein the second docking component further comprises a fourth conductor, arranged to be vertically symmetric with the second conductor.