公开(公告)号：US20190250056A1

公开(公告)日：2019-08-15

申请号：US16316383

申请日：2017-10-25

Applicant: NGK SPARK PLUG CO., LTD. ,  MIKUNI CORPORATION

Inventor： Junki IWABUCHI ,  Tatsunori YAMADA ,  Tomoya SATO

IPC: G01L9/08 ,  G01L23/10 ,  G01L23/26 ,  G01L9/00 ,  G01L19/04

CPC classification number: G01L9/08 ,  G01L9/0052 ,  G01L19/04 ,  G01L23/10 ,  G01L23/26

Abstract: A pressure sensor including a housing extending along an axial line, a diaphragm fixed to a front-end side of the housing, a piezoelectric unit disposed in a hole in the housing and including a piezoelectric element, a transmission member that transmits deformation of the diaphragm to the piezoelectric unit, and a guide member having a through hole extending along the axial line and surrounding the piezoelectric unit in the through hole. (SL/AL)≤0.26 is satisfied in the cross section perpendicular to the axial line passing through the piezoelectric element, where SL is the maximum value of the distance in the radial direction between the center of the through hole and the center of the piezoelectric element and AL is the maximum value of the distance in the radial direction between the outside surface of the piezoelectric element and the center of the through hole.

公开(公告)号：US20160341617A1

公开(公告)日：2016-11-24

申请号：US15158919

申请日：2016-05-19

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsunori YAMADA ,  Junki IWABUCHI

IPC: G01L9/00 ,  B23K26/21

CPC classification number: G01L9/0052 ,  B23K26/21 ,  G01L23/10

Abstract: A method of manufacturing a pressure sensor including a tubular housing having a lid-shaped support plate formed at one end of the housing, a diaphragm, a piezoelectric element for outputting an electrical signal corresponding to pressure received by the diaphragm, and a rod-shaped transmission section for transmitting the pressure to the piezoelectric element. The method includes the steps of accommodating the piezoelectric element into the housing, and fixing the transmission section to the housing through the diaphragm in a state in which a predetermined preload is applied to the piezoelectric element in an axial direction of the housing by pressing the piezoelectric element against the support plate by the transmission section.

Abstract translation: 一种制造压力传感器的方法，该压力传感器包括：管状壳体，其具有形成在壳体的一端的盖状支撑板;隔膜;压电元件，用于输出对应于由隔膜接收的压力的电信号;以及杆状 传递部分，用于将压力传递到压电元件。 该方法包括以下步骤：将压电元件容纳在壳体中，并且通过压迫压电元件在壳体的轴向方向上对压电元件施加预定的预载荷的状态，将透射部分固定到壳体上 元件通过传动部分抵靠支撑板。

公开(公告)号：US20180202886A1

公开(公告)日：2018-07-19

申请号：US15743744

申请日：2016-07-08

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsunori YAMADA ,  Shunsuke TSUGA ,  Yusuke FUJI ,  Junki IWABUCHI ,  Daiki GOTO

IPC: G01L23/18 ,  F02B77/08

CPC classification number: G01L23/18 ,  F02B77/085 ,  F02F1/24 ,  G01L19/0681 ,  G01L23/08 ,  G01L23/10

Abstract: A pressure sensor includes: a diaphragm joined to a front side of a housing via a joint portion; a sensor portion; a connection portion connecting the diaphragm to the sensor portion; and a heat receiving portion disposed at the front side of the diaphragm. When: a minimum value of an area of a minimum inclusion region which is a virtual region, which include a cross-section of a portion from the heat receiving portion to the diaphragm and of which an overall length of a contour become minimum on a cross-section perpendicular to the axial line, is defined as a connection area Sn; and an area of a region surrounded by the joint portion on a projection plane perpendicular to the axial line when the diaphragm and the heat receiving portion are projected onto the projection plane is defined as a diaphragm effective area Sd, (Sn/Sd)≤0.25 is satisfied.

公开(公告)号：US20160299024A1

公开(公告)日：2016-10-13

申请号：US15092253

申请日：2016-04-06

Applicant: NGK SPARK PLUG CO., LTD.

Inventor： Tatsunori YAMADA ,  Junki IWABUCHI

IPC: G01L7/08 ,  G01L19/14

CPC classification number: G01L7/082 ,  F23Q2007/005 ,  G01L19/145 ,  G01M15/08

Abstract: A pressure sensor includes a tubular housing; a diaphragm which is joined to one end portion of the housing through a fusion zone; and a sensor element which is disposed in the housing and to which pressure received by the diaphragm is transmitted. As viewed in a section which contains the center axis of the housing, a pair of the fusion zones exist, and each of the fusion zones is formed in such an inclined manner that its distance from the center axis increases as it extends from the outer surface of the diaphragm toward the other-end-portion side of the housing.

Abstract translation: 压力传感器包括管状壳体; 隔膜，其通过熔融区域接合到壳体的一个端部; 以及传感器元件，其设置在壳体中并且由隔膜接收的压力被传递。 从包含壳体的中心轴的部分看，存在一对熔接区域，并且每个熔融区域以这样的倾斜方式形成，使得其与中心轴的距离随着从外表面延伸而增加 的隔膜朝向壳体的另一端部侧。