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21. 发明专利

JPH10239162A TEMPERATURE-DETECTING DEVICE 失效
公开(公告)号：JPH10239162A
公开(公告)日：1998-09-11
申请号：JP4322597
申请日：1997-02-27
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU , TANAKA TAKESHI , MATSUBARA KATSUNORI , TAMAI TAKASHI
IPC分类号： G01K1/08 , G01K7/22
摘要： PROBLEM TO BE SOLVED: To make it possible to suppress the deterioration of insulation property by using Al2 O3 for an insulator constituting the double-core pipe became Cr2 O3 that is generated on the surface inside a metal cap and is scattered into an inner space does not react with Al2 O3 even if it is adhered to the edge part of an insulator being made of Al2 O3 of a double-core pipe. SOLUTION: The edge part of a metal pipe 5 is inserted into the opening of a metal cap 1 by approximately 3mm, the cap 1 is tentatively fixed by caulking a site that is approximately 3mm from the opening edge in a circumferential shape, and further a seam melting machining is performed in a circumferential shape at a position that is approximately 1.5mm from the open edge of the cap 1 by laser welding 6, thus securing the airtightness of the cap 1. The material of the cap 1 is thinned up to approximately 0.2-0.3mm to meet pyrogenic response performance, thus securing a durability for 1,000 deg.C heat resistance and heat cycle. By using Al2 O3 for the insulator 4 of a double-core pipe 12 regarding the material of the cap 1, the remarkable reduction in an insulation resistance at a high temperature can be suppressed.

22. 发明专利

JPH09189618A TEMPERATURE DETECTOR 失效
公开(公告)号：JPH09189618A
公开(公告)日：1997-07-22
申请号：JP57196
申请日：1996-01-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU , TAMAI TAKASHI , TANAKA TAKESHI , MATSUBARA KATSUNORI , MORIWAKE HIRONORI
IPC分类号： G01K7/22
摘要： PROBLEM TO BE SOLVED: To increase the speed of thermal response performance by using a nickel-chromium alloy material as a material for a metallic cap and specifying a thickness of the metallic cap. SOLUTION: In a metallic cap 1, which is composed of a NCH1 with a thickness of 0.2-0.3mm, a temperature detecting element 2 is stored in the inside of the tip. The temperature detecting element 2 is composed of an electrode, which consists of two pipe type platinum pipes 2, and a cylindrical thermistor 2b, and metallic wires 3 are passed through the two platinum pipes 2a so as to be welded together in the end parts of the pipes 2a. The whole of the metallic wire 3 except its both ends is fixed by means of an insulator 4 made of MgO, while its circumference is covered by a metallic pipe 5, and a two-core pipe is constructed. A lead wire 7 is electrically connected to the other ends of the metallic wires 3 in the two-core pipe individually, and an electric signal can be taken out to the outside. For the material of the metallic cap 1, Ni-Cr alloy and NCF601 can be used.

23. 发明专利

JPH09189617A TEMPERATURE DETECTOR 失效
公开(公告)号：JPH09189617A
公开(公告)日：1997-07-22
申请号：JP56996
申请日：1996-01-08
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU , TAMAI TAKASHI , TANAKA TAKESHI , MATSUBARA KATSUNORI , MORIWAKE HIRONORI
IPC分类号： G01K7/22
摘要： PROBLEM TO BE SOLVED: To increase the speed of thermal response performance by bringing a part of a temperature detecting element into contact with an insulating oxide film layer generated on the surface of a metallic cap composed of an iron- chromium alloy material with a specific thickness. SOLUTION: A metallic cap 1, which is composed of a FCH 1 with a thickness of 0.2-0.4mm, is previously heat treated at a temperature of 900-1100 deg.C, and an insulating oxide film 1a of Al2 O3 is formed on the surface. A temperature detecting element 2 is stored in the inside of the tip of the metallic cap 1a, and a part of the temperature detecting element 2 is brought into contact with the insulating oxide film 1a. Metallic wires 3 are passed through two pipe type platinum pipe electrodes 2a in the temperature detecting element 2 so as to be welded together in the end parts of the pipes 2a. The whole of the metallic wire 3 except its both ends is fixed by means of an insulator 4 consisting of MgO, while its circumference is covered by a metallic pipe 5, and a two-core pipe is constructed. A lead wire 7 is electrically connected to the other ends of the metallic wires 3 of the two-core pipe. For the material of the metallic cap 1, FCH2 or Fe-Cr-Al alloy can be used.

24. 发明专利

JPH03136204A THERMISTOR ELEMENT 失效
公开(公告)号：JPH03136204A
公开(公告)日：1991-06-11
申请号：JP27414389
申请日：1989-10-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU
IPC分类号： H01C7/04 , H01C1/14
摘要： PURPOSE:To reduce the irregularity of resistance value as a completed element by preventing leaching of Ag at an electrode when a solder layer is formed on the surface of the electrode and also by preventing the exfoliation of electrode when cutting by a dicing saw by a method wherein the electrode, which is formed on both opposing surfaces of a thermistor chip, is constructed in a double-layer structure consisting of a specifically prescribed composition. CONSTITUTION:In a thermistor element which is manufactured by forming a solder layer 4 on electrodes 6 and 7 of double-layer structure formed on both opposing surfaces of a thermistor chip 1, also by connecting lead wires 2, one end of which is coated with solder, to the above-mentioned solder layer 4 respectively, and also by having the whole area, excluding a part of the lead wire 2, coated with resin material 3; the above-mentioned electrodes 6 and 7 of double-layer structure consists of the electrode lower layer is formed by printing and baking the paste material containing Ag of 60 to 80% and glass frit composition of 3.5 to 7.0%, and the electrode upper layer 7 is formed by printing and baking the paste material containing Ag of 75 to 85% and glass frit composition of 0 to 1%. As a result, the erosion of Ag of the electrode can be prevented, and the exfoliation of electrode when cutting by a dicing saw can also be prevented.

25. 发明专利

JPH02215102A GLASS-SEALED THERMISTOR 失效
公开(公告)号：JPH02215102A
公开(公告)日：1990-08-28
申请号：JP3676189
申请日：1989-02-16
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AJIYAMA MASAHIKO , KATSUKI NOBUHARU
IPC分类号： H01C7/04
摘要： PURPOSE:To unnecessitate the removal of an oxide film even after the sealing of glass by a method wherein, using a lead wire of W or Mo provided with a Pd layer on the surface by plating or coating, and to facilitate the connection of the lead wire to a thermistor element. CONSTITUTION:After the tip parts of lead wires 6a and 6b, consisting of W or Mo on which Pd layers 5a and 5b are formed on the surface by plating or coating, have been connected by parallel welding to the surface of electrodes 2a and 2b of the thermistor element 1 on which the electrodes 2a and 2b are formed on both opposing surfaces, hermetical sealing glass 4 consisting of borosilicate glass is welded by heating to the tip part, containing welded part, of the thermistor element 1 and the lead wires 6a and 6b. By using W or Mo containing no copper for the lead wire, and also using borosilicate glass as hermetic sealing glass, a heat-resisting property of 400 deg.C or higher can be obtained, a stable connection can be obtained between the electrode and the lead wire by using Pd on the surface of the lead wire, and the removal of the oxide film on the lead wire is unnecessitated even after the sealing of glass.

26. 发明专利

JPH0210801A MANUFACTURE OF GLASS SEALED THERMISTOR 失效
公开(公告)号：JPH0210801A
公开(公告)日：1990-01-16
申请号：JP16172288
申请日：1988-06-29
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU , MIYAMA MASAHIKO
IPC分类号： G01K7/22 , H01C7/04
摘要： PURPOSE:To ensure heat resistance at a fixed temperature or higher continuously while easily welding-connecting a lead to an element assembly by connecting the tip sections of the leads plated with nickel and composed of an iron, nickel and cobalt alloy to both electrode surfaces of the thermistor element assembly through welding and heating glass and welding glass to a front end section including the element assembly and welding sections. CONSTITUTION:The tip sections of leads 5a, 5b plated with nickel 6a, 6b and made up of an iron, nickel and cobalt alloy are connected to each of both electrode 2a, 2b surfaces of a thermistor element assembly 1 through parallel welding. Glass 4 is heated and welded at a front end section containing the thermistor element assembly 1 and the welding sections of the leads 5a, 5b. Accordingly, heat resistance at 400 deg.C or higher can be acquired continuously, and connection by the stable welding of the electrodes formed to the thermistor element assembly and the leads can be obtained.

27. 发明专利

JPH01293504A MANUFACTURE OF GLASS-SEALED THERMISTOR 失效
公开(公告)号：JPH01293504A
公开(公告)日：1989-11-27
申请号：JP12431288
申请日：1988-05-20
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： AJIYAMA MASAHIKO , KATSUKI NOBUHARU
IPC分类号： G01K7/22 , H01C7/04
摘要： PURPOSE:To obtain a thermistor which has continuous heat-resistance higher than 400 deg.C and in which lead wires are easily connected to the thermistor element by welding by a method wherein electrodes are formed on both the facing surfaces of the thermistor element and the tips of the nickel plated lead wires made of an iron/nickel/chrome alloy are connected to both electrode surfaces by welding. CONSTITUTION:Electrodes 2a and 2b are formed on both the facing surfaces of a thermistor element 1. The tips of lead wires 5a and 5b made of iron/nickel/ chrome alloy and coated with nickel plating layers 6a and 6b are connected to both the electrode surfaces by welding. After that, glass 4 melted by heat is applied to the tip part including the thermistor element 1 and the welded parts of the lead wires 5a and 5b to seal the thermistor element 1 airtightly. With this constitution, as the lead wire is made of an iron/nickel/chrome alloy which does not contain copper, continuous heat-resistance higher than 400 deg.C can be obtained. Moreover, as the lead wire is plated with nickel, an iron oxide film is not formed on the lead wire when the lead wire is welded to the electrode formed on the thermistor element, so that the stable connection by welding can be obtained.

28. 发明专利

JPH01233333A TEMPERATURE SENSOR 失效
公开(公告)号：JPH01233333A
公开(公告)日：1989-09-19
申请号：JP6106588
申请日：1988-03-15
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KATSUKI NOBUHARU , TAMAI TAKASHI , KANESASHI MASANORI
IPC分类号： G01K7/22 , H01C7/04
摘要： PURPOSE:To obtain a temperature sensor improved in vibration resistance and shock resistance and having a stable performance, by a method wherein a double-core tube is calked directly inside a heat-resistant metal case and a heat-resistant metal tube protecting a glass-enclosed thermistor element is welded and fixed to the heat-resistant metal tube of the double-core tube. CONSTITUTION:A double-core tube is formed by applying a heat and a pressure for calking to MgO powder 12 and a heat-resistant metal tube 13 surrounding the powder 12, and a radial-type glass-enclosed thermistor element 14 is connected by welding to one end of a core wire 11 of the double-core tube. A heat-resistant metal tube 15 is fixed to the metal tube 13 by spot welding, and a gap between the metal tube 15 and the element 14 are packed with a cement material 17. Heat-resistant lead wires 18 are inserted into a silicon rubber bush 19 and a protective tube 20, and the whole of them is inserted into a heat- resistant metal case 21. Spot calking 22 is applied to the central part of the case 21. By this method, a temperature sensor improved in vibration resistance and shock resistance and having a stable performance is obtained.

29. 发明专利

JP2004177263A Humidity sensor and fuel cell system using it, automobile and cooking apparatus 审中-公开
公开(公告)号：JP2004177263A
公开(公告)日：2004-06-24
申请号：JP2002343595
申请日：2002-11-27
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： SHOJI MASATO , KATSUKI NOBUHARU , YUKAWA JUNICHI
IPC分类号： G01N27/18 , F24C7/02 , H01M8/04
CPC分类号： Y02E60/50
摘要： PROBLEM TO BE SOLVED: To provide a humidity sensor capable of measuring an absolute humidity up to a high humidity with a simple structure. SOLUTION: This sensor has two pairs of detection parts 8 comprising respectively a detection element 1 formed by arranging a heating element inside a can having gas introduction holes 7 and a reference element 2 formed by enclosing the heating element in a holeless can. Each bridge circuit is formed by the two pairs of detection parts 8, and a voltage is applied to the heating elements so that heating temperatures at the two pairs of detection parts 8 are mutually different. Outputs of both bridge circuits are standardized respectively by a sensitivity conversion factor of a gas determined beforehand from a gaseous mixture comprising a gas having a known concentration except steam and the air. The difference between both standardized outputs is determined, and the absolute humidity is determined from a humidity correlation expression determined from the correlation between the standardized output difference and the absolute humidity under a humidity environment known beforehand. COPYRIGHT: (C)2004,JPO

30. 发明专利

JP2004170294A Gas detector, and fuel cell system and automobile using the same 有权
公开(公告)号：JP2004170294A
公开(公告)日：2004-06-17
申请号：JP2002337684
申请日：2002-11-21
申请人： Matsushita Electric Ind Co Ltd , 松下電器産業株式会社
发明人： KATSUKI NOBUHARU , SHOJI MASATO , TADA MAKI , YUKAWA JUNICHI
IPC分类号： B60H1/00 , B60H1/24 , G01N27/18 , G01N33/00 , H01M8/00 , H01M8/04
CPC分类号： G01N27/18 , G01N33/005 , H01M8/04089
摘要： PROBLEM TO BE SOLVED: To provide a gas detector capable of detecting a hydrogen concentration and humidity discriminatingly under an environment where hydrogen and steam coexists. SOLUTION: This detector has a higher-heating detecting part 35a and a lower-heating detecting part 35b having different exothermic temperatures constituted of resistors of which the resistance values change by temperatures, respective gas outputs output from the higher-heating detecting part 35a and the lower-heating detecting part 35b in response to the hydrogen concentration and the humidity are converted into electric signals, and the hydrogen concentration and the humidity of gas introduced into the two detecting parts through a gas introducing port are thereby substituted electrically to be output. COPYRIGHT: (C)2004,JPO

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