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公开(公告)号：US20070227887A1
公开(公告)日：2007-10-04
申请号：US11596474
申请日：2005-05-18
IPC分类号： G01N27/26
CPC分类号： G01F23/268
摘要： The present invention provides a capacitive liquid state sensor configured to release a pressure in an intervening gap by providing slits to an outer tubular electrode while inhibiting decrease in strength caused by forming of the slits. The outer tubular electrode 20 disposed with a predetermined distance from an inner electrode 20 is formed with a plurality of slits 14, 15 and 16 along a generator (indicated by one-dot chain line A) extending from a front end portion 11 to a rear end portion 12. Between the slits 14, 15 and 16 are positioned intermediate no-slit formed areas 17 and 18. Circulation of liquid between the inside and the outside of the outer tubular electrode 10 and in the axial direction of the same electrode 10 is attained through the slits 14, 15 and 16, so that a pressure accompanied by volumetric expansion of liquid at the time of freezing and existing in the intervening space can be released to the outside. Further, by the provision of the intermediate no-slit formed areas 17 and 18, the outer tubular electrode 10 can maintain a good strength so that deformation of the outer tubular electrode 10 can be prevented effectively.
摘要翻译： 本发明提供了一种电容式液态传感器，其被配置为通过向外部管状电极提供狭缝来释放中间间隙中的压力，同时抑制由狭缝形成引起的强度降低。 沿着从前端部11延伸到后方的发电机（由点划线A表示）形成有与内部电极20隔开规定距离的外部管状电极20形成有多个狭缝14,15,16。 端部12。 在狭缝14,15和16之间位于无狭缝形成区17和18之间。 在外管状电极10的内侧和外侧之间以及同一电极10的轴向上的液体循环通过狭缝14,15和16获得，使得伴随液体的体积膨胀的压力在 冻结并存在于居间的空间可以释放到外面。 此外，通过设置中间无狭缝形成区域17和18，外管状电极10可以保持良好的强度，从而可以有效地防止外管状电极10的变形。
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公开(公告)号：US07959863B2
公开(公告)日：2011-06-14
申请号：US11834887
申请日：2007-08-07
CPC分类号： G01F23/268 , F01N11/00 , F01N2550/05 , F01N2900/1818
摘要： A liquid state detecting sensor for detecting a state of a liquid including a liquid concentration detecting element, a holder member, and an enclosing member as defined herein, wherein the holder member has a configuration in which respective portions of a lower end surface facing the enclosed region are located higher than or at a same height as a lowest hole periphery at the rim of the element holding hole from which the detecting element protrudes, and at least one of circulation holes formed in the enclosing member is a bubble-discharging hole which has an upper end located higher than the lowest hole periphery and a lower end located lower than a surface peripheral edge of the lower end surface.
摘要翻译： 一种用于检测包括如本文所定义的液体浓度检测元件，保持器构件和封闭构件的液体的状态的液体状态检测传感器，其中保持器构件具有这样的构造，其中下端表面的各个部分面向封闭 位于与检测元件突出的元件保持孔的边缘处的最低孔周边高度或相同的高度，并且形成在封闭构件中的循环孔中的至少一个是具有气泡排出孔的气泡排出孔， 上端位于比最低孔周边高的位置，下端位于比下端面的表面周缘低的位置。
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公开(公告)号：US20050285608A1
公开(公告)日：2005-12-29
申请号：US11136649
申请日：2005-05-25
申请人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma
发明人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma
CPC分类号： G01N27/226 , G01F23/268
摘要： An electrostatic capacity type liquid state detecting sensor includes an outer tubular electrode, and an inner electrode disposed within the outer tubular electrode and having an insulation layer at an outer surface portion to be brought into contact with liquid contained in a container for detection of a state of the liquid, wherein the thickness of the insulation layer is less than 500 μm and not less than 100 μm.
摘要翻译： 静电容量型液态检测传感器包括外管状电极和设置在外管状电极内的内电极，并且在外表面部分具有与包含在用于检测状态的容器中的液体接触的绝缘层 的液体，其中绝缘层的厚度小于500μm且不小于100μm。
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公开(公告)号：US07712363B2
公开(公告)日：2010-05-11
申请号：US11994191
申请日：2006-06-30
申请人： Takeo Sasanuma , Yoshikuni Sato , Takashi Yamamoto
发明人： Takeo Sasanuma , Yoshikuni Sato , Takashi Yamamoto
IPC分类号： G01F23/00
CPC分类号： G01F23/268 , F01N3/206 , F01N2610/02 , F01N2610/14 , G01F23/266
摘要： A liquid state detecting sensor is provided in which a level detecting unit for detecting the level of a liquid and a concentration detecting unit for detecting the concentration of a particular component contained in the liquid are integrated.In a liquid state detecting sensor 100 capable of measuring the level and a urea concentration of a urea aqueous solution, a level detecting unit 70 and a liquid property detecting unit 30 are connected in an insulated state. An outer cylinder electrode 10 and an inner electrode 20 for forming the level detecting unit 70 form a capacitor, and level detection is performed on the basis of the electrostatic capacity which changes in response to the level of the urea aqueous solution which is present therebetween. A holder 120 for holding a ceramic heater 110 is fitted to a leading end portion 21 of the inner electrode 20, and the holder 120 is supported inside a leading end portion 11 of the outer cylinder electrode 10 by a rubber bushing 80. Further, the urea concentration is determined by a liquid property detecting circuit unit of a circuit board 60 by energizing a heat generating resistor pattern provided on the ceramic heater 110 for a fixed time duration and on the basis of a voltage value corresponding to a resistance value of the heat generating resistor pattern obtained at this time.
摘要翻译： 提供一种液体状态检测传感器，其中集成有用于检测液位的电平检测单元和用于检测包含在液体中的特定成分的浓度的浓度检测单元。 在能够测量尿素水溶液的水平和尿素浓度的液状态检测传感器100中，电平检测单元70和液体特性检测单元30以绝缘状态连接。 用于形成电平检测单元70的外筒电极10和内电极20形成电容器，并且基于响应于存在于其间的尿素水溶液的水平而变化的静电电容进行电平检测。 用于保持陶瓷加热器110的保持器120装配到内部电极20的前端部21，并且保持器120通过橡胶衬套80被支撑在外部气缸电极10的前端部11内。此外， 尿素浓度由电路板60的液体特性检测电路单元确定，通过对设置在陶瓷加热器110上的发热电阻图案施加一定的持续时间，并且基于对应于热量的电阻值的电压值 产生此时获得的电阻图案。
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公开(公告)号：US20080038153A1
公开(公告)日：2008-02-14
申请号：US11834887
申请日：2007-08-07
CPC分类号： G01F23/268 , F01N11/00 , F01N2550/05 , F01N2900/1818
摘要： A liquid state detecting sensor for detecting a state of a liquid including a liquid concentration detecting element, a holder member, and an enclosing member as defined herein, wherein the holder member has a configuration in which respective portions of a lower end surface facing the enclosed region are located higher than or at a same height as a lowest hole periphery at the rim of the element holding hole from which the detecting element protrudes, and at least one of circulation holes formed in the enclosing member is a bubble-discharging hole which has an upper end located higher than the lowest hole periphery and a lower end located lower than a surface peripheral edge of the lower end surface.
摘要翻译： 一种用于检测包括如本文所定义的液体浓度检测元件，保持器构件和封闭构件的液体的状态的液体状态检测传感器，其中保持器构件具有这样的构造，其中下端表面的各个部分面向封闭 位于与检测元件突出的元件保持孔的边缘处的最低孔周边高度或相同的高度，并且形成在封闭构件中的循环孔中的至少一个是具有气泡排出孔的气泡排出孔， 上端位于比最低孔周边高的位置，下端位于比下端面的表面周缘低的位置。
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公开(公告)号：US20070169544A1
公开(公告)日：2007-07-26
申请号：US11653252
申请日：2007-01-16
申请人： Takashi Yamamoto , Takeo Sasanuma , Yoshikuni Sato
发明人： Takashi Yamamoto , Takeo Sasanuma , Yoshikuni Sato
IPC分类号： G01N33/00
CPC分类号： G01N25/005 , F01N3/206 , F01N2610/02 , G01F23/268
摘要： A liquid-condition detection sensor (1) including a sensor element (51), at least a portion of which contacts a urea aqueous solution; connection terminals (52) fixedly attached to the sensor element (51); connection cables (53) which electrically communicate with the concentration sensor element (51) via the connection terminals (52); an inner tube (42) which holds the concentration sensor element (51) at a distal end portion (421) by use of a holder member (55) and surrounds a portion of the connection cables (53) and the entire connection terminals (52); and a separator formed from a material having rubberlike elasticity (54) including a terminal-inner-tube-insulating portion (542) which intervenes between the connection terminals (52) and the inner tube (42) to thereby insulate the connection terminals (52) and the inner rube (42) from one another.
摘要翻译： 一种液体状态检测传感器（1），其包括至少一部分与尿素水溶液接触的传感器元件（51） 固定在传感器元件（51）上的连接端子（52）; 连接电缆（53），经由连接端子（52）与浓度传感器元件（51）电连通; 通过使用保持器构件（55）将浓度传感器元件（51）保持在远端部分（421）处并且包围连接电缆（53）的一部分和整个连接端子（52）的内管（42） ）; 以及由具有橡胶弹性的材料（54）形成的隔板，所述隔板包括介于所述连接端子（52）和所述内管（42）之间的端子 - 内管绝缘部分（542），从而使所述连接端子 ）和内部微波（42）。
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公开(公告)号：US08122764B2
公开(公告)日：2012-02-28
申请号：US12651735
申请日：2010-01-04
申请人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma , Yuki Mizuno
发明人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma , Yuki Mizuno
IPC分类号： G01F23/26
CPC分类号： G01F23/268
摘要： A sensor for detecting a state of liquid contained in a container comprising an outer tubular electrode made of an electrically conductive material, an inner electrode made of an electrically conductive material and disposed concentrically within the outer tubular electrode, a base end support member supporting base end portions of the outer tubular electrode and the inner electrode in a way as to provide insulation therebetween, and a leading end support member elastically supporting a leading end portion of the inner electrode on an inside of a leading end portion of the outer tubular electrode.
摘要翻译： 一种用于检测包含在由导电材料制成的外管状电极的容器中的液体状态的传感器，由导电材料制成并且同心地设置在外管状电极内的内电极，基端支撑件支撑基端 外管状电极和内电极的部分以提供绝缘的方式，以及前端支撑构件，其在外管状电极的前端部的内侧上弹性地支撑内电极的前端部。
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公开(公告)号：US07735354B2
公开(公告)日：2010-06-15
申请号：US11653252
申请日：2007-01-16
申请人： Takashi Yamamoto , Takeo Sasanuma , Yoshikuni Sato
发明人： Takashi Yamamoto , Takeo Sasanuma , Yoshikuni Sato
IPC分类号： G01N33/00
CPC分类号： G01N25/005 , F01N3/206 , F01N2610/02 , G01F23/268
摘要： A liquid-condition detection sensor (1) including a sensor element (51), at least a portion of which contacts a urea aqueous solution; connection terminals (52) fixedly attached to the sensor element (51); connection cables (53) which electrically communicate with the concentration sensor element (51) via the connection terminals (52); an inner tube (42) which holds the concentration sensor element (51) at a distal end portion (421) by use of a holder member (55) and surrounds a portion of the connection cables (53) and the entire connection terminals (52); and a separator formed from a material having rubberlike elasticity (54) including a terminal-inner-tube-insulating portion (542) which intervenes between the connection terminals (52) and the inner tube (42) to thereby insulate the connection terminals (52) and the inner rube (42) from one another.
摘要翻译： 一种液体状态检测传感器（1），其包括至少一部分与尿素水溶液接触的传感器元件（51） 固定在传感器元件（51）上的连接端子（52）; 连接电缆（53），经由连接端子（52）与浓度传感器元件（51）电连通; 通过使用保持器构件（55）将浓度传感器元件（51）保持在远端部分（421）处并且包围连接电缆（53）的一部分和整个连接端子（52）的内管（42） ）; 以及由具有橡胶弹性的材料（54）形成的隔板，所述隔板包括介于所述连接端子（52）和所述内管（42）之间的端子 - 内管绝缘部分（542），从而使所述连接端子 ）和内部微波（42）。
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公开(公告)号：US20090090178A1
公开(公告)日：2009-04-09
申请号：US11994191
申请日：2006-06-30
申请人： Takeo Sasanuma , Yoshikuni Sato , Takashi Yamamoto
发明人： Takeo Sasanuma , Yoshikuni Sato , Takashi Yamamoto
IPC分类号： G01F23/00
CPC分类号： G01F23/268 , F01N3/206 , F01N2610/02 , F01N2610/14 , G01F23/266
摘要： A liquid state detecting sensor is provided in which a level detecting unit for detecting the level of a liquid and a concentration detecting unit for detecting the concentration of a particular component contained in the liquid are integrated.In a liquid state detecting sensor 100 capable of measuring the level and a urea concentration of a urea aqueous solution, a level detecting unit 70 and a liquid property detecting unit 30 are connected in an insulated state. An outer cylinder electrode 10 and an inner electrode 20 for forming the level detecting unit 70 form a capacitor, and level detection is performed on the basis of the electrostatic capacity which changes in response to the level of the urea aqueous solution which is present therebetween. A holder 120 for holding a ceramic heater 110 is fitted to a leading end portion 21 of the inner electrode 20, and the holder 120 is supported inside a leading end portion 11 of the outer cylinder electrode 10 by a rubber bushing 80. Further, the urea concentration is determined by a liquid property detecting circuit unit of a circuit board 60 by energizing a heat generating resistor pattern provided on the ceramic heater 110 for a fixed time duration and on the basis of a voltage value corresponding to a resistance value of the heat generating resistor pattern obtained at this time.
摘要翻译： 提供一种液体状态检测传感器，其中集成有用于检测液位的电平检测单元和用于检测包含在液体中的特定成分的浓度的浓度检测单元。 在能够测量尿素水溶液的水平和尿素浓度的液状态检测传感器100中，电平检测单元70和液体特性检测单元30以绝缘状态连接。 用于形成电平检测单元70的外筒电极10和内电极20形成电容器，并且基于响应于存在于其间的尿素水溶液的水平而变化的静电电容进行电平检测。 用于保持陶瓷加热器110的保持器120装配到内部电极20的前端部21，并且保持器120通过橡胶衬套80被支撑在外部气缸电极10的前端部11内。此外， 尿素浓度由电路板60的液体特性检测电路单元确定，通过对设置在陶瓷加热器110上的发热电阻图案施加一定的持续时间，并且基于对应于热量的电阻值的电压值 产生此时获得的电阻图案。
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公开(公告)号：US20100101307A1
公开(公告)日：2010-04-29
申请号：US12651735
申请日：2010-01-04
申请人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma , Yuki Mizuno
发明人： Yoshikuni Sato , Takashi Yamamoto , Takeo Sasanuma , Yuki Mizuno
IPC分类号： G01N11/00
CPC分类号： G01F23/268
摘要： A sensor for detecting a state of liquid contained in a container comprising an outer tubular electrode made of an electrically conductive material, an inner electrode made of an electrically conductive material and disposed concentrically within the outer tubular electrode, a base end support member supporting base end portions of the outer tubular electrode and the inner electrode in a way as to provide insulation therebetween, and a leading end support member elastically supporting a leading end portion of the inner electrode on an inside of a leading end portion of the outer tubular electrode.
摘要翻译： 一种用于检测包含在由导电材料制成的外管状电极的容器中的液体状态的传感器，由导电材料制成并且同心地设置在外管状电极内的内电极，基端支撑件支撑基端 外管状电极和内电极的部分以提供绝缘的方式，以及前端支撑构件，其在外管状电极的前端部的内侧上弹性地支撑内电极的前端部。
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