公开(公告)号：US20130305811A1

公开(公告)日：2013-11-21

申请号：US13886931

申请日：2013-05-03

Applicant: DENSO CORPORATION

Inventor： Hirofumi NODA ,  Hirokazu YAMADA ,  Satoshi HINO

IPC: G01N33/00

CPC classification number: G01N33/0027 ,  G01N27/4062 ,  G01N27/4075

Abstract: The gas sensor includes a sensor element, a first insulator inside which the sensor element is inserted, a second insulator disposed on a proximal side of the first insulator so as to cover a proximal side of the sensor element, and a contact member held by the second insulator and sandwiching the sensor element. A proximal end portion of the first insulator and a distal end portion of the second insulator abut on each other in an axial direction. Each the proximal end portion and the distal end portion is provided with a positioning structure. The positioning structure is configured to restrict a relative movement between the first and second insulators in a sandwiching direction in which the sensor element is sandwiched by the contact member and in an orthogonal direction perpendicular to the sandwiching direction and in the axial direction.

Abstract translation: 气体传感器包括传感器元件，传感器元件插入其中的第一绝缘体，设置在第一绝缘体的基端侧的第二绝缘体，以覆盖传感器元件的近侧;以及接触构件， 第二绝缘体并夹着传感器元件。 第一绝缘体的基端部和第二绝缘体的前端部在轴向上彼此抵接。 每个近端部分和远端部分设置有定位结构。 定位结构被构造成限制第一绝缘体和第二绝缘体之间的夹持方向的相对运动，其中传感器元件被接触构件夹持，并且在垂直于夹持方向和轴向的正交方向上。

公开(公告)号：US20200292421A1

公开(公告)日：2020-09-17

申请号：US16885636

申请日：2020-05-28

Applicant: DENSO CORPORATION

Inventor： Yuto TAMEI ,  Hirofumi NODA ,  Takehito KIMATA ,  Takashi ARAKI

IPC: G01N1/22 ,  G01N27/04 ,  G01N15/06 ,  G01D11/24 ,  G01N27/407

Abstract: A sensor device is equipped with a housing having an element cover retaining a sensor element such that a detection section of the sensor element is positioned at the tip end of the sensor element. The element cover includes an inner cover provided with inner side holes and an inner tip face hole respectively provided therein, and an outer cover provided with outer side holes in a side thereof, with the tip position of the outer side holes located closer to the tip end than is the tip position of the inner cover. Between the outer surface of the inner cover and the inner surface of the outer cover there is a large clearance section at the tip end and a small clearance section at the base end, providing a flow path that is shaped for connecting the large clearance section and the small clearance section without a step.

公开(公告)号：US20170284957A1

公开(公告)日：2017-10-05

申请号：US15507426

申请日：2015-08-25

Applicant: DENSO CORPORATION

Inventor： Hirofumi NODA ,  Hirokazu YAMADA

IPC: G01N27/409 ,  G01M15/10

CPC classification number: G01N27/409 ,  G01M15/104 ,  G01N27/4062

Abstract: The gas sensor is equipped with a sensor device, a plurality of electrode springs contacting with electrodes and of the sensor device, an insulator retaining the electrode springs, and a plurality of leads connected to the respective electrode springs. Each of the electrode springs includes a retained portion retained by the insulator and a contact portion which is bent and inclined from the retained portion toward a front end side of the sensor device in the lengthwise direction. The contact portion is elastically deformed in contact with the electrode. Each of the electrode springs also includes a bent portion between the contact portion and the retained portion. The bent portion constitutes a base end of the contact portion and is oriented toward the base end side of the gas sensor in the lengthwise direction, thereby enabling the length of the sensor device to be decreased and improving the heat resistance of the electrode springs.

公开(公告)号：US20200292422A1

公开(公告)日：2020-09-17

申请号：US16885648

申请日：2020-05-28

Applicant: DENSO CORPORATION

Inventor： Yuto TAMEI ,  Takashi ARAKI ,  Hirofumi NODA ,  Takehito KIMATA ,  Koichi YOSHIDA

IPC: G01N1/22 ,  G01N27/04 ,  G01N15/06 ,  G01D11/24 ,  G01N27/407

Abstract: A sensor device includes an element cover at the tip end of a housing, retaining a sensor element. An outer cover is provided with outer side holes, with the tip position of the outer side holes being farther toward the tip end than is the tip position of an inner cover, and a first flow passage having a gas flow direction that is at right angles to the axial direction is formed at the inner side of the outer cover. An inner side hole in the inner cover is open to a second flow passage provided between the side surfaces of the inner cover and the outer cover, and a detection surface of the sensor element is located on an extension line in an extension direction of a guide member which extends obliquely into the interior of the inner cover from the tip-position edge of the inner side hole.

公开(公告)号：US20160146768A1

公开(公告)日：2016-05-26

申请号：US14945742

申请日：2015-11-19

Applicant: DENSO CORPORATION

Inventor： Kazutoshi KODAMA ,  Hirofumi NODA

IPC: G01N33/00

CPC classification number: G01N33/0027

Abstract: A gas sensor is provided which includes a hollow metallic housing, a sensor device installed in the housing, and a seal disposed in the housing to hermetically isolate between the housing and the sensor device. The housing has an inner shoulder formed on an inner periphery thereof. The seal is retained on the inner shoulder. The seal is made up of a powder body and a glass body. The powder body is made of inorganic powder and mounted on the inner shoulder. The glass body is arranged on the powder body and has a varying coefficient of thermal expansion which alleviates a difference in thermal expansion between the sensor device and the housing, thereby ensuring the stability of hermetic sealing ability of the seal in high-temperature environments.

Abstract translation: 提供了一种气体传感器，其包括中空的金属外壳，安装在壳体中的传感器装置以及设置在壳体中以密封地隔离壳体和传感器装置之间的密封件。 壳体具有形成在其内周上的内肩。 密封件保留在内肩上。 密封由粉末体和玻璃体组成。 粉体由无机粉末制成，安装在内肩上。 玻璃体布置在粉末体上，具有变化的热膨胀系数，可减轻传感器装置与壳体之间的热膨胀差异，从而确保密封件在高温环境下的气密密封性能的稳定性。