| 发明名称 | Gas sensor and subassembly unit therefor | ||
| 摘要 | The present invention aims to provide a gas sensor that can favorably be assembled by proper positioning of a connection terminal relative to a separator and a subassembly unit for such a gas sensor. In an oxygen sensor, a separator has protruding portions formed on a surface of a front end part thereof; an outer connection terminal has an outer fitting portion fixed to outer circumferential surfaces of the protruding portions under its biasing force; and an inner connection terminal has an inner fitting portion fixed to inner circumferential surfaces of the protruding portions under its biasing force. Thus, it is less likely that the outer and inner connection terminals will be displaced in position relative to the separator and is possible to allow proper positioning of the outer and inner connection terminals. | ||
| 申请公布号 | US9244048(B2) | 申请公布日期 | 2016.01.26 |
| 申请号 | US201213881655 | 申请日期 | 2012.01.12 |
| 申请人 | NGK SPARK PLUG CO., LTD. | 发明人 | Katou Hidekazu;Taguchi Masataka |
| 分类号 | G01N33/00;G01N27/407 | 主分类号 | G01N33/00 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. A gas sensor subassembly unit for use in manufacturing a gas sensor, the gas sensor comprising: a cylindrical sensor element; a connection terminal located on a rear end side of the sensor element and held in contact with an electrode of the sensor element; and a separator located rear of the sensor element and having a through hole in which a rear end part of the connection terminal is inserted, wherein the gas sensor subassembly unit comprises the connection terminal and the separator integrally mounted together, wherein the connection terminal has a cylindrical fitting portion formed on a front end part thereof so as to be fitted to the sensor element and brought into contact with the electrode of the sensor element and an extension portion formed on a rear end part thereof so as to extend rearward from the fitting portion and be inserted in the through hole of the separator; wherein the separator has a protruding portion formed on a surface of a front end part thereof so as to protrude frontward; and wherein the fitting portion of the connection terminal is fixed to a radially lateral surface of the protruding portion under the action of a biasing force of the fitting portion. | ||
| 地址 | Aichi JP | ||