公开(公告)号：US20170212090A1

公开(公告)日：2017-07-27

申请号：US15414808

申请日：2017-01-25

Applicant: NGK Spark Plug Co., LTD.

Inventor： Makoto KUME ,  Shingo ITO ,  Takehiro OBA ,  Shinya MIYAMOTO ,  Suguru KYOUMOTO

IPC: G01N33/00

CPC classification number: G01N33/0036 ,  G01N27/407 ,  G01N27/4077 ,  G01N33/0009

Abstract: A gas sensor is provided with a metal shell protecting member formed of a material superior in heat resistance to a metal shell, whereby a high-temperature measurement target (exhaust gas) is prevented from being in direct contact with a region, of a protector internal region of the metal shell, on the front side relative to a protector opposing surface. That is, in the gas sensor, it is possible to suppress corrosion, due to high temperature, of a region, of the protector internal region of the metal shell, on the front side relative to the protector opposing surface (an inner surface and a front end surface of a protector fixing portion), while the metal shell is formed of a material (SUS430) that can be subjected to working (crimping or the like) accompanied with deformation. Therefore, heat resistance of the entire sensor can be improved.

公开(公告)号：US20170059512A1

公开(公告)日：2017-03-02

申请号：US15351675

申请日：2016-11-15

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Daisuke TAHIRA ,  Keiichi NODA ,  Shingo ITO ,  Atsunori OKADA ,  Yuichi YAMADA

IPC: G01N27/407

CPC classification number: G01N27/4074 ,  G01N27/4077 ,  G01N27/4078 ,  G01N27/409 ,  Y10T29/42 ,  Y10T29/49904 ,  Y10T29/49908

Abstract: A method for manufacturing a gas sensor includes: disposing a tubular holder and a tubular compact in a tubular metallic shell defining a through hole, the tubular holder defining a first insertion hole, and the tubular compact defining a second insertion hole; preparing a preliminary assembly in which a pin is inserted into the first insertion hole and the second insertion hole; pulling out the pin from the first insertion hole and the second insertion hole and inserting a sensor element into the first insertion hole and the second insertion hole such that a forward end of the pin will come into contact with an end of the sensor element; compressing the compact to thereby fix the sensor element inside of the metallic shell; welding a protection sleeve to the metallic shell to thereby form a semi-assembly; and combining the semi-assembly with another semi-assembly to thereby form the gas sensor.

Abstract translation: 一种制造气体传感器的方法，包括：将管状保持器和管状紧凑件设置在限定通孔的管状金属外壳中，管状保持件限定第一插入孔，管状紧固件限定第二插入孔; 准备其中销插入到第一插入孔和第二插入孔中的预备组件; 从第一插入孔和第二插入孔拔出销，并将传感器元件插入到第一插入孔和第二插入孔中，使得销的前端将与传感器元件的端部接触; 压缩压块，从而将传感器元件固定在金属外壳内; 将保护套焊接到金属外壳上，从而形成半组件; 并将半组件与另一半组件结合从而形成气体传感器。