Gas sensor and method for manufacturing the same

A gas sensor, comprising:

• a sensing element that is formed in a plate shape extending in a direction of an axial line and that includes an electrode pad on an outer surface of a rear-end side of the sensing element;
• a metal terminal that extends in the direction of the axial line and that is electrically connected to the electrode pad;
• and
• a tubular separator that has an insertion hole into which the metal terminal is inserted and that surrounds a part of the sensing element on the rear-end side, wherein
• the metal terminal includes a main body and an elastic portion that is integrally connected to the main body, said elastic portion being folded toward the sensing element and elastically connected to the electrode pad at a predetermined contact point,
• the main body includes a front-end-side restricting portion and a rear-end-side restricting portion, both of which further extend from the main body and restrict a movement of the main body by contacting an inner wall surface of the insertion hole when the main body moves in a direction intersecting the direction of the axial line and connecting the main body and the elastic portion,
• the metal terminal abuts on an end portion of the sensing element in its width direction, and
• the inner wall surface of the insertion hole is formed such that it faces in the same direction as the outer surface of the rear-end side of the sensing element faces.

A gas sensor, comprising:

• a sensing element that is formed in a plate shape extending in a direction of an axial line and that includes an electrode pad on an outer surface of a rear-end side of the sensing element;
• a metal terminal that extends in the direction of the axial line and that is electrically connected to the electrode pad;
• and
• a tubular separator that has an insertion hole into which the metal terminal is inserted and that surrounds a part of the sensing element on the rear-end side, wherein
• the metal terminal includes a main body and an elastic portion that is integrally connected to the main body, said elastic portion being folded toward the sensing element and elastically connected to the electrode pad at a predetermined contact point,
• the main body includes a front-end-side restricting portion and a rear-end-side restricting portion, both of which further extend from the main body and restrict a movement of the main body by contacting an inner wall surface of the insertion hole when the main body moves in a direction intersecting the direction of the axial line, and
• the separator has a rear-end facing surface with which a part of the main body is configured to contact when the metal terminal is inserted into the insertion hole so that an axial movement of the main body is restricted.