| 主权项 |
1. A contact connection structure comprising:
a first terminal including a first contact portion including an indent; and a second terminal including a second contact portion including a contact face, the indent making contact with the contact face by the second contact portion being inserted in the first contact portion, wherein the indent includes a first arc face projecting toward the contact face and having a first curvature center extending on a first line, the contact face includes a second arc face projecting toward the indent and having a curvature different from a curvature of the first arc face, a second curvature center of the second arc face extending on a second line perpendicular to the first line on which the first curvature center of the first arc face extends, and when the second contact portion is inserted in the first contact portion, the first arc face and the second arc face make contact with each other by an elliptic region, a direction of one of the first line and the second line being a direction of a long axis of the elliptic region, a direction of another one of the first line and the second line being a direction of a short axis of the elliptic region. |
