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1. 发明专利

JP2006333630A Coil joint insulation structure of rotary electric machine 有权
标题翻译：旋转电机线圈接头结构
公开(公告)号：JP2006333630A
公开(公告)日：2006-12-07
申请号：JP2005153785
申请日：2005-05-26
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAWATA MAKOTO , SUZUKI KEIJI , SEZAKI MITSUNORI
IPC分类号： H02K3/38 , H02K15/04
摘要： PROBLEM TO BE SOLVED: To provide coil joint insulation structure of a rotary electric machine which can be fixed both when the series joint is projecting longitudinally and laterally by filling compound uniformly up to the back of the series joint with no gap.
SOLUTION: In the coil joint insulation structure of a rotary electric machine for applying an insulation cap to the series joint, the insulation cap is formed of a pair of combination insulation cap pieces. The insulation cap piece has a main wall portion, two opposing sidewalls rising from the edge of the main wall portion, and a rear sidewall closing between the rear end sides of the opposing sidewalls. The pair of combination insulation cap pieces include a groove into which the opposing sidewall of the other insulation cap piece is inserted such that the inner and outer surfaces of the opposing sidewall and the rear sidewall overlap each other.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种旋转电机的线圈接合绝缘结构，其可以通过在无间隙地将组合物均匀地填充到串联接头的背面而在纵向和横向上突出时固定。解决方案：在用于向串联接头施加绝缘帽的旋转电机的线圈接合绝缘结构中，绝缘帽由一对组合绝缘帽片形成。绝缘盖片具有主壁部分，从主壁部分的边缘上升的两个相对的侧壁和在相对侧壁的后端侧之间封闭的后侧壁。一对组合绝缘帽片包括一个凹槽，另一个绝缘帽片的相对侧壁插入其中，使得相对的侧壁和后侧壁的内表面和外表面彼此重叠。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2011024330A Rotating electrical machine 有权
标题翻译：旋转电机
公开(公告)号：JP2011024330A
公开(公告)日：2011-02-03
申请号：JP2009166699
申请日：2009-07-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： GOTO FUMIHIKO , SEZAKI MITSUNORI , MURAYAMA HIROHIDE , SUZUKI KEIJI
IPC分类号： H02K3/50 , H02K15/04
摘要： PROBLEM TO BE SOLVED: To provide a rotating electrical machine which can stably support the coil end of a stator even if the number of installed spacers is reduced.
SOLUTION: Stator coil ends 3E jutted from stator cores 2 are bound together and supported with a plurality of supporting rings 5A-5C, and also spacers 8 are installed in the vicinity of adjacent stator coil ends of different phases (U, V, and W) between the supporting rings 5A-5C, thus the stator coil ends 3E that the spacers 8 contact are bound and supported with one another. By installing the spacers 8 only in the vicinity of the stator coil ends 3E of different phases adjoining each other in its circumferential direction where a large electromagnetic force works between the supporting rings 5A-5C, the number of installed spacers 8 can be reduced, and the stator coil ends 3E of different phases can be supported firmly, so that the stator coil ends can be supported stably.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：即使减少安装的间隔件的数量，提供一种可以稳定地支撑定子的线圈端的旋转电机。解决方案：从定子铁芯2突出的定子线圈端3E被结合在一起并被多个支撑环5A-5C支撑，并且隔板8安装在不同相位（U，V）的相邻定子线圈端附近和W），因此间隔件8接触的定子线圈端3E彼此结合和支撑。通过仅在位于支撑环5A-5C之间的大的电磁力的圆周方向上彼此相邻的不同相的定子线圈端3E的附近设置间隔件8，可以减少安装间隔件8的数量，可以牢固地支撑不同相的定子线圈端部3E，从而可以稳定地支撑定子线圈端部。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2008172968A Forced cooling rotary electric machine 有权
标题翻译：强制冷却旋转电机
公开(公告)号：JP2008172968A
公开(公告)日：2008-07-24
申请号：JP2007005779
申请日：2007-01-15
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： HATTORI KENICHI , KAKIMOTO TADAAKI , SENBA AKIOMI , SAEKI MITSURU , SEZAKI MITSUNORI , SHIBATA TAKASHI
IPC分类号： H02K1/20 , H02K9/06
CPC分类号： H02K1/20 , H02K3/487 , H02K9/10
摘要： PROBLEM TO BE SOLVED: To provide a forced cooling rotary electric machine that makes a temperature distribution brought close to a designed temperature distribution and can avoid becoming large in size.
SOLUTION: By having a wedge 11B provided with ventilation grooves 11G and a wedge 11A not provided with the ventilation grooves 11G employed to regulate the flow rates of cooling gas passing through air ducts 13, 13A, and 13B, since positive circulation of the cooling gas supplied to a part of a stator core 8 can be made, in which the temperature is low to parts whose temperature is high, it is possible to uniformize the axial temperature distribution of the stator core 8.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供使温度分布接近设计温度分布的强制冷却旋转电机，并且可以避免尺寸变大。解决方案：通过具有设置有通风槽11G的楔形件11B和未设置有用于调节通过风道13,13A和13B的冷却气体的流量的通风槽11G的楔形件11A，由于正向循环可以将温度低的部件的定子芯8的一部分供给的冷却气体制成为能够使定子铁芯8的轴向温度分布均匀化的方式。（COPYRIGHT：（ C）2008，JPO＆INPIT

4. 发明专利

JP2007046945A Ultrasonic flaw detection method and ultrasonic flaw detector 有权
标题翻译：超声波检测方法和超声波检测器
公开(公告)号：JP2007046945A
公开(公告)日：2007-02-22
申请号：JP2005229469
申请日：2005-08-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： TAKESUTE YOSHINORI , KONO NAOYUKI , KOIKE MASAHIRO , SEZAKI MITSUNORI
IPC分类号： G01N29/04 , G01N29/06 , G01N29/26
摘要： PROBLEM TO BE SOLVED: To inspect the groove face part of the conical surface in a ridgeline from the outer surface of a square column to perform precise inspection over the whole periphery of a welding groove face.
SOLUTION: The welding groove face positioned within the ridgeline of an inspection target comprising the square column is inspected by a two-probe method using two probes holding the ridgeline and the central part of the welding groove face positioned between ridgelines is inspected by one probe method. Both of them are used to perform the flaw detection of the whole periphery of the conical welding groove face in the inspection target. At a place where the two-probe method is performed, within a plane containing the normal line with respect to the flaw surface including the flaw present on the conical welding groove face in the inspection target, the ultrasonic beam transmitting and receiving direction of the respective probes and a probe scanning position are set at a position of regular reflection with respect to the normal line.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：从方柱的外表面检查脊线中锥形表面的凹槽面部分，以对焊接槽面的整个周边进行精确检查。解决方案：通过双探针法检测位于包括方柱的检查对象的脊线内的焊接槽面，使用保持棱线的两个探针和位于棱线之间的焊接槽面的中心部分被检查由一种探针方法。它们都用于对检查对象中的锥形焊接槽面的整个周边进行缺陷检测。在执行双探针方法的地方，在包含检查对象中的锥形焊接槽面上存在的缺陷相对于缺损面的包含法线的平面内，相应的超声波束的发送和接收方向探针和探针扫描位置被设置在相对于法线的规则反射的位置。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2003244885A DYNAMO-ELECTRIC MACHINE AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：JP2003244885A
公开(公告)日：2003-08-29
申请号：JP2002038918
申请日：2002-02-15
申请人： HITACHI LTD
发明人： SEZAKI MITSUNORI , AMAGI SHIGEO , FURUKAWA NOBUAKI , HARUTA TAKASHI , SHIBATA TAKASHI , SUZUKI KEIJI
IPC分类号： H02K3/50 , H02K3/34 , H02K15/04 , H02K15/10
摘要： PROBLEM TO BE SOLVED: To provide a pore member capable of maintaining low hardness, even at low temperatures before hardening process and of easily ensuring necessary elastic modulus after hardening process. SOLUTION: This pore member is intervened between a stator coil 1 and a support ring 3, and between the stator coils 1. After the quantity of resin is set to ≥65 vol.% and COPYRIGHT: (C)2003,JPO

6. 发明专利

JPH07322478A ROTOR SIDE ABNORMAL OVERHEATING DIAGNOSTIC DEVICE 失效
公开(公告)号：JPH07322478A
公开(公告)日：1995-12-08
申请号：JP11073494
申请日：1994-05-25
申请人： HITACHI LTD
发明人： SEZAKI MITSUNORI , IMAI ISATO
IPC分类号： H02H7/08 , B60L3/00 , H02P27/06 , H02P7/63
摘要： PURPOSE:To instantly detect the abnormal heating of a rotor by comparing a current for each notch being provided as a pattern in a control in advance with an actually measured current value at a stator side obtained from a current transformer and judging that the rotor was heated abnormally when the rotor temperature goes below a value for increase. CONSTITUTION:Current supplied from wires via a pantograph is converted from DC to AC by an inverter circuit INV and is supplied to an electric motor. The current supplied to the electric motor is detected by a current transformer CT, the detected stator current value is compared with the current pattern value for a slide frequency pattern by the inverter circuit INV, and it is judged that the temperature at a rotor side is abnormal when a current value at a stator side goes below a current pattern current value, thus instantly detecting the abnormal heating of the rotor.

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