公开(公告)号：US20220074888A1

公开(公告)日：2022-03-10

申请号：US17526610

申请日：2021-11-15

Applicant: DENSO CORPORATION

Inventor： Shota HAGINO ,  Satoshi NAKAMURA ,  Masato OZAWA

IPC: G01N27/407 ,  G01N33/00

Abstract: A gas sensor includes a sensor element, a housing, a contact terminal, a second insulator, a lead wire, a sealing member, an inner periphery side cover and an outer periphery side cover. The inner periphery side cover is mounted on an outer periphery at a position on a base end side in an axial direction of the housing. The outer periphery side cover is disposed on the outer periphery side of the inner periphery side cover, forms a substantially cylindrical space with the inner periphery side cover and holds the sealing member on an inner periphery side.

公开(公告)号：US20220065809A1

公开(公告)日：2022-03-03

申请号：US17522343

申请日：2021-11-09

Applicant: DENSO CORPORATION

Inventor： Shota HAGINO ,  Satoshi NAKAMURA ,  Masato OZAWA

IPC: G01N27/407 ,  G01N33/00 ,  G01N27/406

Abstract: A gas sensor includes a sensor element, a housing, a contact terminal, an insulator, a lead wire, a sealing member, and a base-side cover. A circular protrusion of the housing is provided with a root portion connected to a flange and a diameter reduction portion which is located on the base side of the root portion in an axial direction and whose outer periphery has a diameter reduced with respect to that of the root portion. An outer diameter of the diameter reduction portion is smaller than an outer diameter of the root portion. An end portion on the tip side of the base-side cover in the axial direction is jointed to the outer periphery of the diameter reduction portion.

公开(公告)号：US20230152270A1

公开(公告)日：2023-05-18

申请号：US18153880

申请日：2023-01-12

Applicant: DENSO CORPORATION

Inventor： Kouji MORITA ,  Masato OZAWA ,  Tomofumi FUJII

IPC: G01N27/407 ,  G01M15/10

CPC classification number: G01N27/4078 ,  G01M15/102

Abstract: A gas sensor is provided with a housing provided with a locking step part formed on an inner peripheral surface thereof; a sensor body provided with a locked flange part locked to the locking step part from a base end side thereof and supported inside the housing; a sealing member filled into a filling part between the inner peripheral surface of the housing and an outer peripheral surface of the sensor body in a base end side of the locked flange part; and an insulation member provided between the inner peripheral surface of the housing and the outer peripheral surface of the sensor body in a base end side of the sealing member. The filling part includes an annular groove protruding in an outer peripheral side.

公开(公告)号：US20230258533A1

公开(公告)日：2023-08-17

申请号：US18304667

申请日：2023-04-21

Applicant: DENSO CORPORATION

Inventor： Masato OZAWA

IPC: G01M15/10

CPC classification number: G01M15/102

Abstract: A gas sensor includes a sensor element detecting a concentration of a specified gas, a housing on an inner periphery side of which the sensor element is disposed, a contact terminal contacting an electrode terminal provided to the sensor element, an insulator holding the contact terminal, a base end side cover fixed to a base end side of the housing and covering the insulator, and a disc spring disposed between the cover and the insulator and pushing the insulator toward a tip end side. The insulator has a base end side projecting portion projecting toward the base end side and has an outer periphery base end face, which faces toward the base end side around the base end side projecting portion. The disc spring has a circular body portion and claw portions that project from an inner peripheral edge of the circular body portion toward the base end side.

公开(公告)号：US20210404985A1

公开(公告)日：2021-12-30

申请号：US17473246

申请日：2021-09-13

Applicant: DENSO CORPORATION

Inventor： Kazutoshi KODAMA ,  Masato OZAWA ,  Shota HAGINO

IPC: G01N27/407 ,  G01N27/409 ,  G01N27/406

Abstract: In a gas sensor, a housing is formed into a cylindrical shape. A holding portion is arranged inside the housing and is formed into a cylindrical shape that has a through hole that passes through in an axial direction, when a direction in which an axis of the housing extends is the axial direction. A sensor element is formed to extend in the axial direction in a state where the sensor element passes through the through hole in the holding portion and detects a gas to be measured on one side in the axial direction. A glass seal is arranged inside the holding portion, is made of a glass material, and seals between the sensor element and the holding portion. A shock mitigating portion that mitigates shock being transferred from outside the housing through the holding portion to the glass seal is housed between the housing and the holding portion.