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1. 发明专利

JPH09121517A ROTOR FOR ELECTRIC EQUIPMENT 失效
公开(公告)号：JPH09121517A
公开(公告)日：1997-05-06
申请号：JP30217295
申请日：1995-10-26
申请人： RAILWAY TECHNICAL RES INST , FUJI ELECTRIC CO LTD
发明人： MATSUOKA KOICHI , MAEDA TAKASHI , SHIBANO OSAMU
IPC分类号： H02K1/02 , H02K17/16
摘要： PROBLEM TO BE SOLVED: To prevent the breakage of the tooth section of an end plate and scattering of fragments by stress concentration even when the end plate is formed of a low-strength material by arranging a high-rigidity end plate retainer composed of a nonmagnetic material between an end plate and a core retainer so that the end plate retainer can overlap the tooth section. SOLUTION: An end plate retainer 6 is shaped so that the retainer 6 can come into contact with the outer peripheral surface of a tooth section 2a with a wide area and the stresses concentrated to the root of the tooth section 2a of an end plate 2 due to a core retainer 4 can be dispersed over a wide extent. The retainer 6 is formed of a nonmagnetic material, such as the stainless steel, etc., so as to prevent the occurrence of an eddy current loss. When the retainer 6 is formed of the nonmagnetic material, the concentrated stresses do not act directly to the root of the tooth section 2a of the end plate 2, but are absorbed and dispersed by the retainer 6, even when the end plate 2 is made of a material having a low strength and high permeability. Therefore, such a risk that the section 2a is broken from its root when a rotor is rotated at a high speed is eliminated and a stator, etc., are not damaged by scattered fragments.

2. 发明专利

JPH04369487A COIL TEMPERATURE MEASUREMENT METHOD FOR DIRECT CURRENT MOTOR 失效
公开(公告)号：JPH04369487A
公开(公告)日：1992-12-22
申请号：JP14504391
申请日：1991-06-18
申请人： RAILWAY TECHNICAL RES INST , FUJI ELECTRIC CO LTD
发明人： MATSUOKA KOICHI , KOTAKI YUKIO , UTSUKA TETSUO , IWAMURA KOJI
IPC分类号： G01K7/00 , G01R27/08 , G01R31/06
摘要： PURPOSE:To measure armature coil resistance exactly by eliminating counter electromotive force and the voltage drop at brushes from the voltage drop between brushes. CONSTITUTION:During operating a direct current motor, a constant current source 11 is connected between brushes of armature in series and different pilot current ia is sent from the current source 11 at two time points with a short interval. By using an equation Ra=(Va1-Va2)/(ia1-ia2), where Va1, Va2 and ia1, ia2 are voltage drops and pilot currents between the two time points, an exact coil resistance value Ra after eliminating the effect of counter electromotive force and voltage drop at the brushes can be measured. Using this coil resistance value Ra, exact coil temperature can be obtained.

3. 发明专利

JPH11146585A ROTOR OF PERMANENT MAGNET TYPE ROTARY MACHINE 失效
公开(公告)号：JPH11146585A
公开(公告)日：1999-05-28
申请号：JP32050897
申请日：1997-11-06
申请人： RAILWAY TECHNICAL RES INST , FUJI ELECTRIC CO LTD
发明人： MATSUOKA KOICHI , KONDO KEIICHIRO , SHIBANO OSAMU
IPC分类号： H02K9/06 , H02K1/27
摘要： PROBLEM TO BE SOLVED: To enhance thermal radiation ability of a non-magnetic spacer arranged between neighboring permanent magnets. SOLUTION: In a rotor 1 in which a plurality of permanent magnets 4 and spacers 5 are arranged alternately on the outer peripheral surface of a boss 3 connected to a shaft 2 of the rotor 1, a through-hole 8 for vent is made from a pushing plate 6 for preventing the positional deviation of the spacer 5 and it shaft direction to the other side through each spacer 5. By doing this, the heat radiating area of the spacer 5 is increased, the cooling efficiency is enhanced, along with the mass of the spacer 5 being reduced, and energy efficiency of the rotor 1 being improved.

4. 发明专利

JP2005027381A Earthing device of rolling stock 审中-公开
标题翻译：滚动装置接地装置
公开(公告)号：JP2005027381A
公开(公告)日：2005-01-27
申请号：JP2003187413
申请日：2003-06-30
申请人： Hitachi Chem Co Ltd , Railway Technical Res Inst , 日立化成工業株式会社 , 財団法人鉄道総合技術研究所
发明人： NIHEI TORU , MATSUOKA KOICHI , TERADA HIROYA , KONDO MINORU
IPC分类号： B61F15/28 , B60L3/00 , H01R4/64 , H01R39/26 , H02K13/00
CPC分类号： Y02T10/641 , Y02T90/121
摘要： PROBLEM TO BE SOLVED: To provide an earthing device of rolling stock for bypassing a current in order to prevent electrolytic corrosion due to a current flowing into a bearing section when a current taken into from the pantograph of a rolling stock is fed to a railroad track in which the short circuit resistance between the left and right rails can be lowered to a level sufficient for operating a signal circuit in an independent wheel system truck by decreasing the contact resistance between the body and the wheel from the initial stage of operation. SOLUTION: In the earthing device of rolling stock, movable section and fixed section are connected electrically through a metal graphite brush containing 25-95 wt% of silver. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种用于绕过电流的机车车辆的接地装置，以便当从机车车辆的受电弓引入的电流被馈送到时，防止由于电流流入轴承部分中的电解腐蚀一个铁路轨道，其中左右轨道之间的短路电阻可以降低到足以在独立的车轮系统卡车中操作信号电路的水平，通过从初始操作阶段减小车身和车轮之间的接触电阻。
解决方案：在机车车辆的接地装置中，可动部分和固定部分通过含有25-95wt％银的金属石墨刷电连接。版权所有（C）2005，JPO＆NCIPI

5. 发明专利

JP2003300465A Grounding brush device 有权
标题翻译：接地刷机
公开(公告)号：JP2003300465A
公开(公告)日：2003-10-21
申请号：JP2002106431
申请日：2002-04-09
申请人： Hitachi Chem Co Ltd , Railway Technical Res Inst , 日立化成工業株式会社 , 財団法人鉄道総合技術研究所
发明人： KANTO HIROYUKI , YAMAKAWA NORIO , MATSUOKA KOICHI , TERADA HIROYA , KONDO MINORU
IPC分类号： B61F15/28
摘要： PROBLEM TO BE SOLVED: To provide a grounding brush device causing little interference between mutual lead wires.
SOLUTION: In this grounding brush device, two brushes 2 are installed in a V-shaped brush inserting groove formed in a brush holding box 1, and the brushes 2 are pressurized by a spring 10, and are contacted with a slip ring 15 installed on a wheel. In the grounding brush device, a shape of a terminal 21 for fixing the lead wires 8 is formed in a rectangular shape or a square shape, and a fixing position of the lead wires 8 to the terminal is set outside the V-shaped brush inserting groove.
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种在相互引线之间几乎没有干扰的接地刷装置。解决方案：在该接地刷装置中，将两个刷子2安装在形成于刷子保持箱1中的V形刷插入槽中，并且刷子2被弹簧10加压，并与滑环 15安装在车轮上。在接地刷装置中，用于固定引线8的端子21的形状形成为矩形或正方形，并且引线8到端子的固定位置设置在V形刷插入的外侧槽。版权所有（C）2004，JPO

6. 发明专利

JP2003219697A INDUCTION MOTOR CONTROLLER 审中-公开
公开(公告)号：JP2003219697A
公开(公告)日：2003-07-31
申请号：JP2002013367
申请日：2002-01-22
申请人： RAILWAY TECHNICAL RES INST , TOSHIBA CORP
发明人： KONDO KEIICHIRO , MATSUOKA KOICHI , YUKI KAZUAKI , ITO MASANAO
IPC分类号： H02P27/06 , H02P21/00 , H02P21/18 , H02P21/22 , H02P21/24 , H02P23/07 , H02P27/04 , H02P7/63
摘要： PROBLEM TO BE SOLVED: To reduce the torque difference to match the actual torque with a desired torque. SOLUTION: A main circuit is constituted of a VVVF inverter 1 which converts a direct current into an alternating current of an arbitrary frequency, and an induction motor 2 which his driven by connecting with the alternating- current side of the VVVF inverter 1. An induction motor controller comprises a frequency command generating means 13 which generates a primary frequency command based on a motor constant, and a means which controls the VVVF inverter 1 so that a primary frequency following the primary frequency command generated by the frequency command generating means 13 is inputted to the induction motor 2. The induction motor controller is provided with a torque difference index computing means 16 which outputs a torque difference index indicating that there is a difference between a desired torque and the actual torque with respect to the induction motor 2, and a primary frequency correcting means 17 which corrects the primary frequency so as to reduce the torque difference index outputted from the torque difference index computing means 16. COPYRIGHT: (C)2003,JPO

7. 发明专利

JP2003130102A DISC BRAKE DEVICE 审中-公开
公开(公告)号：JP2003130102A
公开(公告)日：2003-05-08
申请号：JP2001325934
申请日：2001-10-24
申请人： RAILWAY TECHNICAL RES INST , KAWASAKI HEAVY IND LTD , KAWAJU SHARYO ENGINEERING KK
发明人： MATSUOKA KOICHI , SATO KIYOSHI , OKU YASUMASA , INOUE HIROKI
IPC分类号： F16D65/12
摘要： PROBLEM TO BE SOLVED: To provide a disc brake device equipped with a divided type brake disc, which is simple in structure, capable of reducing the weight, high in alignment precision, capable of absorbing the thermal expansion of a disc, and saving on the cooling structure. SOLUTION: Each divided disc 3a is formed so as to be connected integrally by butt jointing via a knock pin 4 at the divided face, and a ring-shaped flange 5 is protruded integrally at the outside circumference of a boss 2. At the side of the boss 2, a circular hole 7 is set, and a centering pin 6 is fitted with clearance. The brake disc is brought into contact with the flange 5, and at this time, a rectangular pin part 6b of the centering pin 6 at the flange 5 side is fitted into a plurality of engaging grooves 9 which extend in the radial direction.

8. 发明专利

JP2002305853A FULLY-CLOSED ROTATING ELECTRIC MACHINE 失效
公开(公告)号：JP2002305853A
公开(公告)日：2002-10-18
申请号：JP2001101066
申请日：2001-03-30
申请人： RAILWAY TECHNICAL RES INST , TOSHIBA CORP , TOSHIBA TRANSP ENG INC
发明人： KONDO MINORU , MATSUOKA KOICHI , SHIRAISHI SHIGETOMO , NAGAYAMA TAKASHI , YAMAWAKI KAZUNORI
IPC分类号： H02K5/20 , H02K5/04 , H02K5/16 , H02K9/00
摘要： PROBLEM TO BE SOLVED: To provide a fully closed rotating electric machine capable of attaining maintenance saving by restraining a temperature increase at a bearing part and preventing early deterioration of lubricating grease, thus extending a non- disassembly period. SOLUTION: In this fully closed rotating electric machine 1 which supports a shaft 9 by the bearings 5, 7 so as to be rotatable, thermal insulation layers 12a, 12b are provided at a surface coming into contact with inside air in supporting parts 6, 8 of the bearings 5, 7. The amount of heat which is generated in the fully closed rotating electric machine 1 and transmitted to the bearing supporting parts 6, 8 by heat transfer via the inside air is reduced by thermal insulation layers 12a, 12b to minimize the increase in the temperature of the bearing supporting parts 6, 8 and the bearings 5, 7. It is thus possible to prevent the lubricating grease of the bearings 5, 7 from deteriorating early, and extend the non-disassembly period for maintenance saving. Moreover, since this method can be used merely by making thermal insulation materials 13a, 13b adhere to a surface coming into contact with the inside air in the bearing supporting parts 6, 8, it is thus possible to facilitate the use of this method for a conventional fully closed rotating electric machine.

9. 发明专利

JP2002136082A WHEEL DRIVE GEAR 失效
公开(公告)号：JP2002136082A
公开(公告)日：2002-05-10
申请号：JP2000316886
申请日：2000-10-17
申请人： RAILWAY TECHNICAL RES INST , TOSHIBA TRANSP ENG INC , TOSHIBA CORP
发明人： MATSUOKA KOICHI , KONDO MINORU , TERADA HIROYA , YAGI NOBUYUKI , YAMAWAKI KAZUNORI , SHIRAISHI SHIGETOMO
IPC分类号： B60K7/00 , B61C9/46 , H02K21/22 , H02K24/00
摘要： PROBLEM TO BE SOLVED: To realize a wheel drive gear using an outer rotor motor, which makes the disassembly period long for maintenance and reduces its motor mass. SOLUTION: A stator core 6 and a stator coil 7 are fixed surrounding a fixed wheel shaft 3 and a cylindrical shaped rotor frame 21 is disposed on the outer peripheral part of the stator core. A plurality of bearings 16, 17 are fixed on the outer position of the wheel shaft than the fixing position of the stator core having a space in the axial direction, and a wheel 18 is supported by these bearings to rotate free. And an end part of the rotor frame in the axial direction is fixed to the side surface of the central part of the wheel, and a resolver rotor 20b is fixed to the other end part of the rotor frame in the axial direction. A resolver fulcrum 19 is fixed on the wheel shaft 3 at the position corresponding to the resolver rotor 20b, and a resolver stator 20a is fixed on the outer peripheral part of the resolver.

10. 发明专利

JP2000152563A TOTALLY ENCLOSED COOLING TYPE DYNAMO ELECTRIC MACHINE 失效
公开(公告)号：JP2000152563A
公开(公告)日：2000-05-30
申请号：JP31676298
申请日：1998-11-09
申请人： RAILWAY TECHNICAL RES INST
发明人： MATSUOKA KOICHI , HOSODA MINORU
IPC分类号： H02K9/22 , H02K3/24
摘要： PROBLEM TO BE SOLVED: To provide a totally enclosed cooling type dynamo electric machine which can reduce thermal resistance of a path from a heat generating member to outside air, improve cooling performance, and reduce temperature rise of a dynamo electric machine. SOLUTION: This totally enclosed cooling type dynamo electric machine is equipped with a thin plate type cooling element 14 which is sandwiched between laminated cores 12 and includes a loop type thin heat pipe forming fins 14A coming into contact with outside air 17, and a thin plate type cooling element 15 which is sandwiched between coil ends 13A and includes a loop type thin heat pipe forming fins 15A coming into contact with outside air 17.

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