Connector and connector set with asymmetric coupled surfaces

A connector set comprising:

• a first connector and a second connector that are to be coupled to each other,
• wherein the second connector includes
• a first positioning surface that is, when the first connector and the second connector are coupled to each other, parallel to a first direction extending in a direction directed from the first connector toward the second connector and that is, when the first connector and the second connector are coupled to each other, parallel to a second direction perpendicular to the first direction, and
• a second positioning surface spaced from the first positioning surface by a distance that is in a third direction perpendicular to the first direction and the second direction and that reduces from the second connector side toward the first connector side in the first direction,
• wherein the first connector includes
• a first positioning portion in contact with the first positioning surface when the first connector and the second connector are coupled to each other, and
• a second positioning portion in contact with the second positioning surface when the first connector and the second connector are coupled to each other,
• wherein none of normal vectors of a first surface of the second connector that faces one side in the second direction have a component on another side opposite to the one side in the second direction,
• wherein none of normal vectors of a second surface of the second connector that faces the other side in the second direction have a component on the one side in the second direction,
• wherein, in the second connector, none of normal vectors of a third surface that faces the first connector side in the first direction have a component in the second direction, or none of the normal vectors of the third surface have a component directed toward the one side in the second direction, and
• wherein the third surface includes the first positioning surface and the second positioning surface,
• wherein the second surface of the second connector faces the circuit board,
• wherein, when the first connector and the second connector are coupled to each other, the first positioning portion is a surface that is parallel to the first positioning surface and that is not in direct contact with the second surface, and
• wherein, when the first connector and the second connector are coupled to each other, the second positioning portion is a surface that is parallel to the second positioning surface and that is not in direct contact with the second surface.

A second connector to which a first connector is to be coupled, the second connector comprising:

• a first positioning portion in contact with, when the first connector and the second connector are coupled to each other, a first positioning surface of the first connector that is parallel to a first direction extending in a direction directed from the first connector toward the second connector and that is parallel to a second direction perpendicular to the first direction, and
• a second positioning portion in contact with, when the first connector and the second connector are coupled to each other, the second positioning surface of the first connector that is spaced from the first positioning surface by a distance which is in a third direction perpendicular to the first direction and the second direction and which reduces in the first direction,
• wherein none of normal vectors of a first surface that is positioned on one side in the second direction have a component directed toward another side opposite to the one side in the second direction,
• wherein none of normal vectors of a second surface that faces the other side in the second direction have a component directed toward the one side in the second direction,
• wherein none of normal vectors of a third surface that faces the first connector side in the first direction have a component in the second direction, or none of the normal vectors of the third surface have a component directed toward the one side in the second direction, and
• wherein the third surface includes the first positioning portion and the second positioning portion,
• wherein the second surface of the second connector faces the circuit board,
• wherein, when the first connector and the second connector are coupled to each other, the first positioning portion is a surface that is parallel to the first positioning surface and that is not in direct contact with the second surface, and
• wherein, when the first connector and the second connector are coupled to each other, the second positioning portion is a surface that is parallel to the second positioning surface and that is not in direct contact with the second surface.

A second connector to which a first connector is to be coupled, the second connector comprising:

• a first positioning surface that is, when the first connector and the second connector are coupled to each other, parallel to a first direction extending in a direction directed from the first connector toward the second connector, that is, when the first connector and the second connector are coupled to each other, parallel to a second direction perpendicular to the first direction, and that is, when the first connector and the second connector are coupled to each other, contacted by a first positioning portion of the first connector,
• a second positioning surface that is spaced from the first positioning surface by a distance which is in a third direction perpendicular to the first direction and the second direction and which reduces from the first connector side toward the second connector side in the first direction and that is contacted by a second positioning portion of the first connector,
• wherein none of normal vectors of a first surface that faces one side in the second direction have a component directed toward another side opposite to the one side in the second direction,
• wherein none of normal vectors of a second surface that faces the other side in the second direction have a component directed toward the one side in the second direction,
• wherein none of normal vectors of a third surface that is positioned on the first connector side in the first direction have a component in the second direction, or none of the normal vectors of the third surface have a component directed toward the one side in the second direction, and
• wherein the third surface includes the first positioning surface and the second positioning surface,
• wherein the second surface of the second connector faces the circuit board,
• wherein, when the first connector and the second connector are coupled to each other, the first positioning portion is a surface that is parallel to the first positioning surface and that is not in direct contact with the second surface, and
• wherein, when the first connector and the second connector are coupled to each other, the second positioning portion is a surface that is parallel to the second positioning surface and that is not in direct contact with the second surface.