公开(公告)号：US20210381945A1

公开(公告)日：2021-12-09

申请号：US17407284

申请日：2021-08-20

Applicant: DENSO CORPORATION

Inventor： Yuto TAMEI ,  Koichi YOSHIDA ,  Takehito KIMATA

IPC: G01N15/06 ,  G01M15/10

Abstract: A sensor device includes a housing that has a sensor element inserted therein and holds the sensor element such that a detection unit is positioned at the tip end thereof in the axial direction, and an element cover disposed coaxially with the tip end. A tip surface of the outer cover has a plurality of outer tip surface holes provided outward from positions opposing the outer periphery of an inner tip surface hole. The tip surface of the outer cover includes a central portion which protrudes towards the inner tip surface hole, an outer peripheral portion in which the outer tip surface holes are formed and which is positioned farther toward the tip end than is the central portion, and an inclined surface connects the central portion to the outer tip surface holes.

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：US20180073936A1

公开(公告)日：2018-03-15

申请号：US15563706

申请日：2016-04-01

Applicant: DENSO CORPORATION

Inventor： Toshiya OZEKI ,  Koichi YOSHIDA ,  Motoki SATO ,  Masaki HIRONAKA

IPC: G01K7/02 ,  G01K1/12 ,  G01K7/18 ,  G01N27/407 ,  G01N27/406

Abstract: A temperature sensor includes a temperature detector, an element electrode wire, a lead wire, and an intermediate member. Each of the lead wire and the intermediate member is made of a Ni-based alloy or an Fe-based alloy. The element electrode wire and the intermediate member are welded together in such a manner that opposing surfaces, facing each other abut against each other to constitute an element-side weld. The intermediate member and the lead wire are welded together such that they overlap each other in a longitudinal direction Z to constitute a lead-side weld. The lead wire is extended closer to the temperature detector than the element-side weld is located. A gap between the element electrode wire and the lead wire at least in the longitudinal direction Z is filled with a filler. The element electrode wire, the element-side weld, and the lead wire are fixed to one another by the filler.