公开(公告)号：US20130235904A1

公开(公告)日：2013-09-12

申请号：US13788473

申请日：2013-03-07

Applicant: DENSO CORPORATION

Inventor： Yuusuke TOUDOU ,  Tsunenobu HORI ,  Sotoo TAKAHASHI

IPC: G01K7/16

CPC classification number: G01K7/16 ,  G01K2007/163 ,  G01K2205/04

Abstract: The temperature sensor includes a thermo-sensitive element, first and second electrode wires electrically connected to the thermo-sensitive element, first and second signal wires partially overlapped with and connected to the first and second electrode wires, respectively. The first and second electrode wires are made of a first metal material consisting primarily of Pt. The first and second signal wires are made of a second metal material containing Al and having a linear thermal expansion coefficient larger than that of the first metal material. Each of an overlap portion of the first electrode wire and the first signal wire and an overlap portion of the second electrode wire and the second signal wire includes a junction part formed by melting and thereafter coagulating the first or second electrode wire and the first or second signal wire. The junction part includes an oxidation film containing Al formed on a surface thereof.

Abstract translation: 温度传感器包括热敏元件，电连接到热敏元件的第一和第二电极线，分别与第一和第二电极线部分重叠并连接到第一和第二电极线的第一和第二信号线。 第一和第二电极线由主要由Pt组成的第一金属材料制成。 第一和第二信号线由含有Al的第二金属材料制成，其线性热膨胀系数大于第一金属材料的线性热膨胀系数。 第一电极线和第一信号线的重叠部分和第二电极线和第二信号线的重叠部分中的每一个包括通过熔化形成的接合部分，然后使第一或第二电极线和第一或第二电极线凝结 信号线。 接合部包括在其表面上形成有包含Al的氧化膜。