Socket and inspection socket
A socket includes: a base portion that includes a first and a second base portions both electrically conductive and assembled so as to overlap each other in an upper-lower direction, the base portion being provided with a through hole penetrating through the first and the second base portions in the upper-lower direction; and a contact pin that is inserted into the through hole, in which the base portion holds the contact pin through an insulation member in the through hole of the first base portion, includes a first step in which a diameter on a side of the second base portion is smaller than that on a side of the first base portion at a boundary portion between the through hole of the first base portion and the through hole of the second base portion, and restricts downward movement of the insulation member with the first step.
1 . A socket, comprising:
a base portion that includes an upper base portion and a lower base portion both electrically conductive and assembled so as to overlap each other in an upper-lower direction, the base portion being provided with a through hole penetrating through the upper base portion and the lower base portion in the upper-lower direction; and
a contact pin that is inserted into the through hole and is connected to a terminal of a first electric component at an upper end and to a terminal of a second electric component at a lower end when in use to electrically connect the first electric component and the second electric component together,
wherein the base portion
holds the contact pin through an insulation member in the through hole of the upper base portion,
further includes a first stepped portion defined by a difference in diameter at a boundary portion between the through hole of the upper base portion and the through hole of the lower base portion, the difference in diameter being formed by a first diameter which is a diameter of the through hole at a bottom portion of the upper base portion and a second diameter which is a diameter of the through hole at a top portion of the lower base portion, and
restricts downward movement of the insulation member with the first stepped portion.
2 . The socket according to claim 1 , wherein the base portion
further includes, in the through hole of the upper base portion, a second stepped portion in which a diameter on a distal side apart from the boundary portion is reduced from a diameter on a proximal side close to the boundary portion, and
restricts upward movement of the insulation member with the second stepped portion.
3 . The socket according to claim 2 , wherein the base portion
supports the insulation member from a lower side with the first stepped portion,
supports the insulation member from an upper side with the second step stepped portion, and
supports the insulation member from an outer side with an inner wall of the through hole between the first stepped portion and the second stepped portion.
4 . The socket according to claim 1 , wherein
the contact pin is a pin for signal transmission or power supply,
the contact pin having a smaller diameter than the through hole over an entire length in the upper-lower direction, and
the contact pin being inserted so as not to be in contact with an inner wall of the through hole.
5 . An inspection socket used for inspecting an electric property of a first electric component, the inspection socket comprising the socket according to claim 1 .
6 . A socket comprising:
a base portion that includes a first base portion and a second base portion both electrically conductive and assembled so as to overlap each other in an upper-lower direction, the base portion being provided with a through hole penetrating through the first base portion and the second base portion in the upper-lower direction; and
a contact pin that is inserted into the through hole and is connected to a terminal of a first electric component at an upper end and to a terminal of a second electric component at a lower end when in use to electrically connect the first electric component and the second electric component together, wherein:
the base portion
holds the contact pin through an insulation member in the through hole of the first base portion,
further includes a first stepped portion in which a diameter on a side of the second base portion is smaller than a diameter on a side of the first base portion at a boundary portion between the through hole of the first base portion and the through hole of the second base portion,
restricts downward movement of the insulation member with the first stepped portion,
further includes, in the through hole of the first base portion, a second stepped portion in which a diameter on a distal side apart from the boundary portion is reduced from a diameter on a proximal side close to the boundary portion, and
restricts upward movement of the insulation member with the second stepped portion,
the insulation member is a cylindrical body extending in the upper-lower direction while surrounding an outer periphery of the contact pin, and
the cylindrical body including a protruding portion that protrudes outward in a part of the cylindrical body in the upper-lower direction and that is in contact with the first-step stepped portion and/or the second-step stepped portion.
7 . The socket according to claim 6 , wherein
the insulation member includes the protruding portion in an lower end portion,
the through hole includes a small-diameter portion whose diameter is reduced from that of the second stepped portion, at a position on an upper side with respect to the second stepped portion on the distal side of the first base portion, and
the base portion supports the insulation member from an outer side with an inner wall of the small-diameter portion.
8 . An inspection socket used for inspecting an electric property of a first electric component, the inspection socket comprising the socket according to claim 6 .