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1. 发明专利

JPH11225455A STATOR OF ROTATING MACHINE 失效
公开(公告)号：JPH11225455A
公开(公告)日：1999-08-17
申请号：JP2296798
申请日：1998-02-04
申请人： HITACHI LTD
发明人： WAKUI SHINICHI , IDE KAZUMASA , TAKAHASHI KAZUHIKO , TAKAHASHI MIYOSHI , HIYAMA FUTOSHI
IPC分类号： H02K3/42
摘要： PROBLEM TO BE SOLVED: To suppress a temperature rise in a stator iron core pressure plate, by forming the ring of a plurality of conductors at the axial end surface of the stator iron core pressure plate, and connecting the ring of a pluarility of conductors with a plurality of conductive rods. SOLUTION: In the vicinity of a stator iron core end part formed with a stator iron core pressure plate 9, a leakage flux 16 by field magetomotive force and armature magetomotive force are present in a complex form, and axial magnetic fluxes enter an iron core end surface. The stator iron core pressure plate 9 for fixing a stator iron core 7 at a stator frame is manufactured out of an iron mass from the viewpoint of mechanical strength, and by the leakage flux 16 entered axially, eddy-current flows through th end surface of the stator iron core keep plate 9, and local heating occurs. Therefore, a cage shield device 10b is formed by disposing end rings 1, 2 at positions where the eddy-current flows concentricity in a circumferential direction, and connecting the end rings 1, 2 by conductive rods 4. The end rings 1, 2 and the conductive rods 4 which from the shield device 10b are made of metal so that the eddy-current may flow.

2. 发明专利

JPS62236340A STATOR FOR ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS62236340A
公开(公告)日：1987-10-16
申请号：JP7811086
申请日：1986-04-07
申请人： HITACHI LTD
发明人： HIYAMA FUTOSHI
IPC分类号： H02K1/20 , H02K11/00
摘要： PURPOSE:To accurately detect the temperature of a stator for a rotary electric machine by providing temperature sensors in the vicinity on the inner and outer peripheral surfaces of a cylindrical partition plate mounted on the stator to surround the outer periphery of a rotor at part of the entire axial direction of an air gap between the stator and the rotor. CONSTITUTION:A cylindrical partition plate 14 is so mounted on a stator 3 as to surround the outer periphery of a rotor 7 at part of the axial length of an air gap 15 between a stator core 3 and the rotor 7 laminated through a gap 16. A plurality of temperature sensors 17 are mounted on the inner and outer peripheral surfaces of the plate 14. Cooling gas fed through the sub slot 12 of the rotor 7 flows through a gap of a coil ll as designated by an arrow in a peripheral direction, partly collides with the plate 14, and the residue flows directly to the gap 15. Cooling air flows inner and outer peripheral directions as designated by arrows inside the gap 16 of the core 3. Thus, the sensors 17 accurately separately measure the temperatures of the rotor and the stator.

3. 发明专利

JPH0246319A INSULATING COUPLING FOR REVOLVING ELECTRICAL AXIS 失效
公开(公告)号：JPH0246319A
公开(公告)日：1990-02-15
申请号：JP19598488
申请日：1988-08-08
申请人： HITACHI LTD
发明人： HIYAMA FUTOSHI
IPC分类号： F16D1/033
摘要： PURPOSE:To increase a transfer torque for a coupling device of a revolving electric machine by arranging the thickness of an insulating cylinder that is in a region of shrinkage fit between an external cylinder and an internal cylinder differred in a direction of a joint axis. CONSTITUTION:An insulating cylinder 4 is arranged between an external cylinder 1 and an internal cylinder 3 of an insulating coupling in order to be electrically insulating. After the insulating cylinder 4 is baked on a periphery of the internal cylinder 3, it is peripheral-processed, and the external cylinder 1 is shrunk and fitted thereto, and then, the coupling is shrunk and fitted to an axis of a revolving electric machine. The thickness of the insulating cylinder in a portion A, a side of internal circumference of the external cylinder 1 of low contractive rigidity is defined thinner as t2

4. 发明专利

JPS63312572A HYDROGEN SEAL DEVICE FOR ROTARY ELECTRIC EQUIPMENT 失效
公开(公告)号：JPS63312572A
公开(公告)日：1988-12-21
申请号：JP14511087
申请日：1987-06-12
申请人： HITACHI LTD
发明人： HIYAMA FUTOSHI
IPC分类号： F16J15/40
摘要： PURPOSE:To make the penetration of hydrogen in the rotary electric equipment into the captioned oil seal and suppress a temperature rise due to the frictional loss of a seal ring by providing a drainage pipe for discharging a part of a seal oil which cools a seal ring. CONSTITUTION:The space gH of a seal ring 3 on the inside of a rotary electric equipment is made smaller for reducing hydrogen consumption so as to reduce the quantity of a seal oil and the space gA of the seal ring 3 on the outside of the rotary electric equipment is reduced in correspondence with the space gH for maintaining the transient dynamic characteristic of the seal ring 3. Thus, the total quantity of the seal oil discharged through both seal rings 3 is reduced. However, the oil quantity equal to the conventional one or more is necessary to cool the seal ring 3. The oil quantity to cool the seal ring 3 is discharged from a seal case 2 to an oiling pipe 7. On the middle of the oiling pipe 7 provided an oil quantity regulating valve 8 so as to regulate the balance between the quantity of the seal oil and the quantity of the oil to cool the seal ring 3, thereby preventing the seal oil from the excessive flow only to the oiling pipe 7.

5. 发明专利

JPS61139242A Rotor of rotary electric machine 失效
标题翻译：旋转电机转子
公开(公告)号：JPS61139242A
公开(公告)日：1986-06-26
申请号：JP25978684
申请日：1984-12-07
申请人： Hitachi Ltd
发明人： HIYAMA FUTOSHI
IPC分类号： H02K3/24 , H02K9/24
CPC分类号： H02K3/24 , H02K9/24
摘要： PURPOSE:To readily inspect the adhered state of a duct in a vent hole of a coil conductor by forming a simulated slot extending axially to the end of a rotor body, and containing a simulated conductor having a simulated vent hole in the slot. CONSTITUTION:A simulated slot 14 is formed at the end of a rotor body 1, and a simulated conductor 15 which does not flow a current is detachably contained in the slot 14. The conductor 15 is retained by a wedge 7 fed through a movement preventing wedge 15 provided in the slot 14 at the radial end to retain the both axial ends by stoppers 17, 18. A simulated vent hole 6a which communicates radially is formed in the conductor 15. When the adhered state of dust in the hole 15a is inspected, the adhered state of dust in the hole of a rotor coil can be known.
摘要翻译：目的：通过形成沿轴向延伸到转子体的端部的模拟槽，并容纳在槽中具有模拟通气孔的模拟导体，容易地检查线圈导体的通气孔中的管道的粘附状态。构成：模拟槽14形成在转子体1的端部，并且不流动电流的模拟导体15可拆卸地容纳在槽14中。导体15由通过防止运动的运动进给的楔形物7保持楔形件15在径向端部处设置在槽14中，以通过塞子17,18保持两个轴向端部。在导体15中形成有径向连通的模拟通气孔6a。当检查孔15a中的灰尘的附着状态可以知道转子线圈的孔中的灰尘的附着状态。

6. 发明专利

JPS6070946A COOLANT DRYING DEVICE OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6070946A
公开(公告)日：1985-04-22
申请号：JP17804083
申请日：1983-09-28
申请人： HITACHI LTD
发明人： HIYAMA FUTOSHI
IPC分类号： H02K9/08 , H02K9/26
摘要： PURPOSE:To avoid a phenomenon such as a decrease in an insulating resistance due to the absorption of moisture to the insulator by forcibly passing and circulating coolant in a rotary electric machine through a coolant drying unit even during the stop of the machine. CONSTITUTION:Hydrogen gas supply tube 12 is connected as for sealing hydrogen gas to a hydrogen gas distributing tube 4 at the upper portion in a rotary electric machine. When sealing the gas in the machine, a carbon dioxide supply tube 11 for exchanging air in the machine temporarily with carbon dioxide is provided. A blower 13 is connected between the tube 12 and the tube 11 connected to a hydrogen gas distributing tube 4 and a carbon dioxide distributing tube 5 during the stoppage of the machine, thereby forcibly circulating the coolant in the machine.

7. 发明专利

JPS5765236A Device for interpolar connection of revolving-field coil 失效
标题翻译：用于互连线圈连接的装置
公开(公告)号：JPS5765236A
公开(公告)日：1982-04-20
申请号：JP14043580
申请日：1980-10-09
申请人： Hitachi Ltd
发明人： HIYAMA FUTOSHI
IPC分类号： H02K3/18 , H02K3/12 , H02K3/52
CPC分类号： H02K3/12 , H02K3/527
摘要： PURPOSE:To prevent the deformation of the curved section of an interpolar connecting wire due to the displacement of the coil conductor of the spacer which was inserted between field coils having different polarities by a method wherein a buffer material is provided at the section which comes in contact with the curved section of the interpolar connecting wire. CONSTITUTION:The spacer 8 is arranged between the counter polarities at the end section of the field coil 3 installed on a rotor, and on the bore side of the spacer 8, the buffer type material 10, consisting of silicon rubber and the like, is installed in such a manner that the curved section 20 of the interpolar connecting wire 6, to be used to connected field coils having counter polarity, comes in contact with the bore section of the buffer type material 10. Through these procedures, the stress applied to the curved section is decreased even when the field coil 3 is deformed due to centrifugal force and the deformation of the curved section can be prevented.
摘要翻译：目的：为了防止由于插入在具有不同极性的场线圈之间的间隔物的线圈导体的位移而导致的极间连接线的弯曲部分的变形，其中缓冲材料设置在进入与极间连接线的弯曲部分接触。构成：间隔件8配置在安装在转子上的励磁线圈3的端部的相反极性之间，在间隔件8的孔侧，由硅橡胶等构成的缓冲型材料10为以使得用于连接具有反极性的励磁线圈的极间连接线6的弯曲部分20与缓冲型材料10的孔部分接触。通过这些程序，施加到即使当磁场线圈3由于离心力而变形时，弯曲部分也减小，并且可以防止弯曲部分的变形。

8. 发明专利

JPS5671451A ROTARY MAGNETIC FIELD WINDING 失效
公开(公告)号：JPS5671451A
公开(公告)日：1981-06-15
申请号：JP14554079
申请日：1979-11-12
申请人： HITACHI LTD
发明人： HIYAMA FUTOSHI
IPC分类号： H02K9/08 , H02K3/32
摘要： PURPOSE:To improve the creeping insulation breakdown strength of a rotary field winding in which a vent hole is formed from the bottom of the slot thereof toward an opening by providing an insulating layer between the wedge insulator and the winding except the vent hole, thereby increasing the creeping distance between the wedge and the winding conductor. CONSTITUTION:In the field winding in which a cooling gas flowing slot is opened at the bottom of the winding slot and a vent hole is opened between the slot and the winding conductor 5 toward the radial outside, the insulating layer 11 is formed between the insulator 2 and the winding conductor 5 except the vent hole part between the conductors. Thus, the creeping distance between the wedge 1 and the conductor 5 can be increased without increasing the thickness of the insulator 2, thereby improving the creeping insulation breakdown strength.

9. 发明专利

JP2009050083A Turbine generator and vibration suppressing method of winding end of stator of turbine generator 有权
标题翻译：涡轮发电机定子绕组涡轮发电机和振动抑制方法
公开(公告)号：JP2009050083A
公开(公告)日：2009-03-05
申请号：JP2007213708
申请日：2007-08-20
申请人： Hitachi Engineering & Services Co Ltd , Hitachi Ltd , 株式会社日立エンジニアリング・アンド・サービス , 株式会社日立製作所
发明人： SATO HIROYUKI , GOTO FUMIHIKO , HIYAMA FUTOSHI
IPC分类号： H02K3/50
摘要： PROBLEM TO BE SOLVED: To provide a turbine generator which can prevent the crack and the breakage of an insulating layer by suppressing vibration at the winding end of a stator, and a vibration suppressing method of the winding end of the stator of the turbine generator.
SOLUTION: There are provided means (12 to 15, 17 and 18) for changing the vibration responsiveness of the winding end 3 of the stator overhanging from a stator core 1 according to an operation status. Since natural vibration can be changed by controlling the vibration responsiveness of the winding end 3 of the stator by arranging the means (12 to 15, 17 and 18) according to the operation status as above, approximation to an operation frequency of the turbine generator can be avoided, and as a result, the crack and the breakage of the insulating layer (10) can be prevented by suppressing the vibration of the winding end 3 of the stator.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过抑制定子的绕组端的振动来防止绝缘层的裂纹和破损的涡轮发电机，以及定子的定子的绕组端的振动抑制方法涡轮发电机。解决方案：提供了用于根据操作状态从定子铁心1改变定子悬臂的绕组端3的振动响应性的装置（12至15,17和18）。由于可以通过根据如上所述的操作状态布置装置（12至15,17和18）来控制定子的绕组端3的振动响应性来改变固有振动，因此近似于涡轮发电机的操作频率可以通过抑制定子的绕组端3的振动来防止绝缘层（10）的裂纹和断裂。版权所有（C）2009，JPO＆INPIT

10. 发明专利

JP2005185025A Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2005185025A
公开(公告)日：2005-07-07
申请号：JP2003423958
申请日：2003-12-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： IWASHIGE KENGO , SATO HIROYUKI , HIYAMA FUTOSHI , KANO TAKASHI , SANO TAKAHIKO , TSUZAWA KENICHI
IPC分类号： H02K9/06 , F01D5/08 , H02K9/04 , H02K9/10
CPC分类号： H02K9/10
摘要： PROBLEM TO BE SOLVED: To control the temperature of a stator core end so as not to be excessively raised due to heat generated at the stator core end of a turbine generator.
SOLUTION: This rotating electric machine comprises a stator composed of the stator core, a stator core presser member and a stator coil; a rotor composed of a rotor core, a rotor coil and a holding ring; and a baffle plate, that is arranged at the internal diameter side of the stator core end and distributes a cooling medium that cools the inside of the machine. The baffle plate forms a flow of the cooling medium along the internal periphery of the stator core presser member and/or the internal peripheral face of the stator core end.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了控制定子铁芯端部的温度，以便不会由于在涡轮发电机的定子铁芯端产生的热量而过度升高。解决方案：该旋转电机包括由定子铁芯，定子铁芯压紧件和定子线圈构成的定子; 由转子铁芯，转子线圈和保持环组成的转子; 以及设置在定子铁芯端部的内径侧的挡板，分配冷却机器内部的冷却介质。挡板形成冷却介质沿定子铁心压脚件和/或定子铁芯端部的内周面的内周的流动。版权所有（C）2005，JPO＆NCIPI

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