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    Reducing-atmosphere-resistant thermistor element, production method thereof and temperature sensor
    1.
    发明授权
    Reducing-atmosphere-resistant thermistor element, production method thereof and temperature sensor 失效

    公开(公告)号：US06663794B2

    公开(公告)日：2003-12-16

    申请号：US09924596

    申请日：2001-08-09

    申请人： Itsuhei Ogata ,  Daisuke Makino ,  Kaoru Kuzuoka ,  Atsushi Kurano

    发明人： Itsuhei Ogata ,  Daisuke Makino ,  Kaoru Kuzuoka ,  Atsushi Kurano

    IPC分类号： H01C702

    CPC分类号： G01K7/22 ,  H01C7/043 ,  Y10T29/49082 ,  Y10T29/49085

    摘要： This invention provides a reducing-atmosphere-resistant thermistor element, the resistance of which does not greatly change even when the element is exposed to a reducing atmosphere, and which has high accuracy and exhibits excellent resistance value stability. The thermistor element has a construction in which an oxygen occlusion-release composition, having oxygen occlusion-release characteristics, such as CeO2 is dispersed in a composition containing a mixed sintered body (M1 M2)O3.AOx as a principal component. The oxygen occlusion-release composition emits absorbed oxygen in a reducing atmosphere and suppresses migration of oxygen from the composition constituting the element. Therefore, the resistance value does not greatly change even when the element is exposed to a reducing atmosphere, and the element can accurately detect the temperature for a long time. The present invention can thus provide a temperature sensor having high reliability.

    Reduction resistant thermistor, method of production thereof, and temperature sensor
    2.
    发明授权
    Reduction resistant thermistor, method of production thereof, and temperature sensor 有权
    耐还原热敏电阻，其制造方法和温度传感器

    公开(公告)号：US06878304B2

    公开(公告)日：2005-04-12

    申请号：US09925017

    申请日：2001-08-09

    申请人： Itsuhei Ogata ,  Daisuke Makino ,  Kaoru Kuzuoka ,  Atsushi Kurano

    发明人： Itsuhei Ogata ,  Daisuke Makino ,  Kaoru Kuzuoka ,  Atsushi Kurano

    IPC分类号： H01C7/02 ,  H01C7/04 ,  H01C7/10 ,  B28B1/00 ,  H01C7/13

    CPC分类号： H01C7/045 ,  H01C7/025

    摘要： A highly accurate reduction resistant thermistor exhibiting stable resistance characteristics even under conditions where the inside of a metal case of a temperature sensor becomes a reducing atmosphere, wherein when producing the thermistor comprised of a mixed sintered body (M1 M2)O3.AOx, the mean particle size of the thermistor material containing the metal oxide, obtained by heat treating, mixing, and pulverizing the starting materials, is made smaller than 1.0 μm and the sintered particle size of the mixed sintered body, obtained by shaping and firing this thermistor material, is made 3 μm to 20 μm so as to reduce the grain boundaries where migration of oxygen occurs, suppress migration of oxygen, and improve the reduction resistance.

    摘要翻译： 即使在温度传感器的金属壳体的内部成为还原气氛的条件下，即使在由混合烧结体（M1 M2）O3.AOx构成的热敏电阻的制造条件下也能够表现出稳定的电阻特性的高精度的耐压热敏电阻， 将通过热处理，混合和粉碎原料得到的包含金属氧化物的热敏电阻材料的粒径设定为小于1.0μm，通过对该热敏电阻材料进行成形和烧制获得的混合烧结体的烧结粒度， 为3μm〜20μm，以减少发生氧迁移的晶界，抑制氧的迁移，提高耐还原性。

    TEMPERATURE SENSOR ELEMENT, METHOD FOR MANUFACTURING SAME, AND TEMPERATURE SENSOR
    8.
    发明申请
    TEMPERATURE SENSOR ELEMENT, METHOD FOR MANUFACTURING SAME, AND TEMPERATURE SENSOR 有权
    温度传感器元件，其制造方法和温度传感器

    公开(公告)号：US20130020670A1

    公开(公告)日：2013-01-24

    申请号：US13639327

    申请日：2011-04-27

    申请人： Tsunenobu Hori ,  Kaoru Kuzuoka ,  Chiaki Ogawa ,  Motoki Satou ,  Katsunori Yamada ,  Takao Kobayashi

    发明人： Tsunenobu Hori ,  Kaoru Kuzuoka ,  Chiaki Ogawa ,  Motoki Satou ,  Katsunori Yamada ,  Takao Kobayashi

    IPC分类号： H01L35/14 ,  H01L35/34

    CPC分类号： H01C7/008 ,  G01K7/22 ,  H01C7/021

    摘要： A temperature sensing element includes a thermistor composed of Si-base ceramics and a pair of metal electrodes bonded onto the surfaces of the thermistor. The metal electrodes contain Cr and a metal element α having a Si diffusion coefficient higher than that of Cr. A diffusion layer is formed in a bonding interface between the thermistor and each metal electrode, the diffusion layer including a silicide of the metal element α in a crystal grain boundary of the Si-base ceramics. A temperature sensor including the diffusion layers is provided. Owing to the diffusion layers, the temperature sensor ensures heat resistance and bonding reliability and enables temperature detection with high accuracy in a temperature range, in particular, of from −50° C. to 1050° C.

    摘要翻译： 温度感测元件包括由Si基陶瓷组成的热敏电阻和结合到热敏电阻表面上的一对金属电极。 金属电极含有Cr和Si扩散系数高于Cr的金属元素α。 在热敏电阻和每个金属电极之间的接合界面中形成扩散层，扩散层包括Si基陶瓷的晶界中的金属元素α的硅化物。 提供包括扩散层的温度传感器。 由于扩散层，温度传感器确保了耐热性和接合可靠性，并且在温度范围内，特别是在-50℃至1050℃下能够以高精度进行温度检测。

    Temperature sensor and method of producing the temperature sensor
    9.
    发明授权
    Temperature sensor and method of producing the temperature sensor 有权
    温度传感器和温度传感器的制造方法

    公开(公告)号：US07748898B2

    公开(公告)日：2010-07-06

    申请号：US12034907

    申请日：2008-02-21

    申请人： Yuusuke Toudou ,  Kaoru Kuzuoka

    发明人： Yuusuke Toudou ,  Kaoru Kuzuoka

    IPC分类号： G01K1/00 ,  G01K7/00 ,  H01C1/03 ,  H01C1/028

    CPC分类号： G01K7/22 ,  G01K1/08 ,  G01K1/12 ,  G01K13/02 ,  G01K2205/04 ,  Y10T29/49117

    摘要： In a temperature sensor having a temperature sensitive element, a sheath pin connected to the temperature sensitive element, and a cover case. The cover case, filled with a filler, accommodates the temperature sensitive element and the sheath pin. A hardening temperature of the filler is not less than an actual usage environment of the temperature sensor. Another temperature sensor has a temperature sensitive element exposed at a high temperature of not less than 750° C., a thermistor element, a sheath pin, an anti-vibration filler, and a metal cover case fixed to an end part of the sheath pin. The metal cover case accommodates the sheath pin and the thermistor element. The filler is made of a porous insulation material having a pore ratio within a range of 30 to 70% and filled around the thermistor element in the metal cover case.

    摘要翻译： 在具有温度敏感元件的温度传感器中，连接到温度敏感元件的护套引脚和盖壳体。 填充有填充物的盖壳容纳温度敏感元件和护套引脚。 填料的硬化温度不低于温度传感器的实际使用环境。 另一温度传感器具有在不低于750℃的高温下暴露的温度敏感元件，热敏电阻元件，护套引脚，防振填充物和固定在护套销端部的金属盖壳体 。 金属盖壳容纳护套引脚和热敏电阻元件。 填料由孔隙比在30-70％范围内的多孔绝缘材料制成，并填充在金属盖壳体内的热敏电阻元件周围。

    Temperature sensor for high temperature and method of producing the same
    10.
    发明授权
    Temperature sensor for high temperature and method of producing the same 失效
    高温温度传感器及其制造方法

    公开(公告)号：US5561411A

    公开(公告)日：1996-10-01

    申请号：US271629

    申请日：1994-07-07

    申请人： Kaoru Kuzuoka

    发明人： Kaoru Kuzuoka

    IPC分类号： G01K7/22 ,  H01C7/02 ,  H01C7/04 ,  H01C7/10

    CPC分类号： H01C7/023 ,  G01K7/22

    摘要： According to the present invention, a temperature sensor for high temperature comprises a ceramic plate on the surface of which is provided a thermistor layer, electrodes connected to the thermistor layer, and the thermistor layer containing ZnCr.sub.2 O.sub.4. It is preferable that the thermistor layer contain a resistance conditioning agent composed of either ZnO or Cr.sub.2 O.sub.3 or both, and that it contains at least one of the sintering auxiliaries selected from the group: SiO.sub.2, CaO, MgO, CaCO.sub.3, kaolin, and talc. Accordingly, it is possible to obtain stable resistance-temperature characteristics at high temperature as well as superior heat resistance.

    摘要翻译： 根据本发明，用于高温的温度传感器包括陶瓷板，其表面上设置有热敏电阻层，连接到热敏电阻层的电极和含有ZnCr 2 O 4的热敏电阻层。 优选的是，所述热敏电阻层包含由ZnO或Cr 2 O 3或两者组成的电阻调节剂，并且其包含选自SiO 2，CaO，MgO，CaCO 3，高岭土和滑石中的至少一种烧结助剂。 因此，可以在高温下获得稳定的电阻温度特性以及优异的耐热性。