Sensor
AssigneeNgk Spark Plug Co., Ltd.
InventorsKumiko YOSHIKAWA, Makoto KUME, Noboru MATSUI, Tomohiro NAKAMURA
Life of this patent
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Abstract
A sensor including: a detecting element (4) as defined herein; a plurality of metallic terminal members (10, 211, 221, 231, 268) as defined herein; and an insulating separator (82) as defined herein, wherein the insulating separator includes: an outer separator (183) which surrounds the electrode terminal portions of the detecting element and the metallic terminal members; and an inner separator (185, 285) at least a portion of which is disposed radially inwardly of the outer separator and which has partition walls (187, 190, 191, 287, 290, 291) for positioning the plurality of metallic terminal members and insulating the plurality of metallic terminal members from one another.
Claims14
A sensor comprising:
- a detecting element having a plate-like shape extending in an axial direction and whose leading end side is directed toward a gas to be measured, and a plurality of electrode terminal portions formed on at least one of an obverse plate surface and a reverse plate surface of a rear end side of the detecting element;
- a plurality of metallic terminal members for electrically connecting an external device and the electrode terminal portions of the detecting element;
- and
- an insulating separator in which the electrode terminal portions of the detecting element and the metallic terminal members are connected with one another,
- wherein the insulating separator comprises:
- an outer separator which surrounds the electrode terminal portions of the detecting element and the metallic terminal members;
- and
- an inner separator at least a portion of which is disposed radially inwardly of the outer separator and which has partition walls for positioning respective ones of the plurality of metallic terminal members and for insulating the plurality of metallic terminal members from one another.
A sensor comprising:
- a detecting element which has a plate-like shape extending in an axial direction and whose leading end side is directed toward a gas to be measured, and a plurality of electrode terminal portions formed on at least one of an obverse plate surface and a reverse plate surface of a rear end side of the detecting element;
- a plurality of metallic terminal members for electrically connecting an external device and the electrode terminal portions of the detecting element;
- and
- an insulating separator in which the electrode terminal portions of the detecting element and the metallic terminal members are connected with one another,
- wherein at least one of the plurality of metallic terminal members comprises a frame body portion of an elongated shape extending in the axial direction and an element abutting portion which extends from a leading end side of the frame body portion such that at least a portion thereof is disposed between the frame body portion and the detecting element, and which element abutting portion abuts against an electrode terminal portion of the detecting element, the element abutting portion having a connecting portion which is connected to a leading end of the frame body portion, and at least a portion of the connecting portion is adapted to undergo elastic deformation upon application of an external force thereto by the detecting element,
- wherein, of the plurality of electrode terminal portions, two adjacent ones of the electrode terminal portions in a same plane of the detecting element are formed at different axial positions, and
- wherein respective axial arrangement positions of the plurality of metallic terminal members are set so as to connect individual ones of the plurality of metallic terminal members with corresponding ones of the electrode terminal portions.
Dependencies are inferred from the claim text.