GAS SENSOR UNIT
First Claim
1. A gas sensor unit comprising:
- a gas sensor including;
a gas detection element which extends in an axial direction and has a cylinder shape with a bottom in which a leading end side is closed,a sensor terminal which is inserted into a round hole of the gas detection element to be electrically connected to an inner electrode formed at an inner surface of the gas detection element and having a rear end protruding from a rear end side of the gas detection element, anda cylindrical surrounding body which surrounds a periphery of the rear end of the sensor terminal; and
a sensor cap including;
a cap terminal which is electrically connected to the sensor terminal, anda cap body which has an insertion hole surrounding at least a part of the rear end of the surrounding body, the cap body surrounding a periphery of the cap terminal,wherein the cap body is formed of a resin, and a cap body seal surrounding the surrounding body is fitted into the insertion hole, andwherein the cap body includes;
a rear end seal pressing portion that contacts with a rear end side surface of the cap body seal; and
a leading end seal pressing portion that contacts a leading end side surface of the cap body seal,wherein the cap body seal is hold by the rear end seal pressing portion and the leading end seal pressing portion of the cap body.
1 Assignment
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Accused Products
Abstract
A gas sensor unit including: a gas sensor which includes a gas detection element, a sensor terminal and a cylindrical surrounding body which surrounds a periphery of the rear end of the sensor terminal; and a sensor cap. The sensor cap includes a cap terminal and a cap body which has an insertion hole surrounding a part of the rear end of the surrounding body. The cap body is formed of a resin, and a cap body seal surrounding the surrounding body is fitted into the insertion hole. The cap body includes a rear end seal pressing portion that contacts a rear end side surface of the cap body seal; and a leading end seal pressing portion that contacts a leading end side surface of the cap body seal, which holds the cap body seal.
18 Citations
7 Claims
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1. A gas sensor unit comprising:
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a gas sensor including; a gas detection element which extends in an axial direction and has a cylinder shape with a bottom in which a leading end side is closed, a sensor terminal which is inserted into a round hole of the gas detection element to be electrically connected to an inner electrode formed at an inner surface of the gas detection element and having a rear end protruding from a rear end side of the gas detection element, and a cylindrical surrounding body which surrounds a periphery of the rear end of the sensor terminal; and a sensor cap including; a cap terminal which is electrically connected to the sensor terminal, and a cap body which has an insertion hole surrounding at least a part of the rear end of the surrounding body, the cap body surrounding a periphery of the cap terminal, wherein the cap body is formed of a resin, and a cap body seal surrounding the surrounding body is fitted into the insertion hole, and wherein the cap body includes; a rear end seal pressing portion that contacts with a rear end side surface of the cap body seal; and a leading end seal pressing portion that contacts a leading end side surface of the cap body seal, wherein the cap body seal is hold by the rear end seal pressing portion and the leading end seal pressing portion of the cap body. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification