Press-fit pin, connection structure including the press-fit pin, and electronic device including the press-fit pin

A press-fit terminal formed of an electricity conductive material and extended in a predetermined direction, the press-fit terminal comprising:

• a tip end located on one side relative to the predetermined direction;
• a base end located on an other side relative to the predetermined direction;
• a first conductive portion extending from a side of the tip end toward the base end;
• and
• a second conductive portion extending from a side of the tip end toward the base end, the second conductive portion being connected with the first conductive portion on the side of the tip end and on the side of the base end, wherein
• the tip end and the base end therebetween define an opening, which is a through hole passing through a portion between the first conductive portion and the second conductive portion,
• the opening includes a pair of first linear portions, a pair of second linear portions, and a pair of third linear portions,
• the pair of first linear portions is in straight liner shapes extending in predetermined directions, respectively,
• the pair of first linear portions is defined by a sidewall portion of the first conductive portion and a sidewall portion of the second conductive portion,
• the pair of first linear portions is distant from both one end portion of the opening on the side of the tip end and an other end portion of the opening on the side of the base end,
• the pair of second linear portions is in straight liner shapes extending in inclined directions, respectively, relative to the predetermined direction,
• the pair of second linear portions is defined by the sidewall portion of the first conductive portion and the sidewall portion of the second conductive portion,
• the pair of second linear portions is located on a side of the one end portion relative to the pair of first linear portions,
• a distance between the pair of second linear portions decreases toward the one end portion,
• the pair of third linear portions is in straight liner shapes extending in inclined directions, respectively, relative to the predetermined direction,
• the pair of third linear portions is defined by the sidewall portion of the first conductive portion and the sidewall portion of the second conductive portion,
• the pair of third linear portions is located on a side of the other end portion relative to the pair of first linear portions, and
• a distance between the pair of third linear portions decreases toward the other end portion.