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91. 发明专利

JPH04109844A INDUCTION MOTOR 失效
公开(公告)号：JPH04109844A
公开(公告)日：1992-04-10
申请号：JP22535290
申请日：1990-08-29
申请人： TOSHIBA CORP
发明人： SAIMA TORU , NAGAYAMA TAKASHI , FUJIWARA KAZUYUKI
IPC分类号： H02K1/32 , H02K5/24 , H02K9/02
摘要： PURPOSE:To prevent production of high frequency noise by setting the distance of a cooling air path, inclining from the outer circumferential face of stator coil to the proximity of frame, longer than half of the wavelength of a sound, produced through pulsation of air with a frequency determined by the product of the number of rotor bar and the number of revolution at the operating limit of motor, thereby suppressing sound wave amplifying effect. CONSTITUTION:A cooling air path comprising a plurality of sound wave guide boards 21 is formed at a point near the gap of a stator coil 4 through which pressure wave produced by the rotation of a rotor bar 11 passes. The pressure wave is fed in synchronization with the reciprocation of a sound wave produced from a pulsating air flow 15 which is produced by the fan effect of the rotor bar 11 between the outer circumferential face of the stator coil 4 and the inner circumferential face of a magnet frame 1. Amplification of noise due to the air flow is prevented by lengthening the reciprocal path of the sound wave between the stator coil 4 and the magnet frame 1, and the noise generation mechanism is broken by shifting the returning timing of reflected noise from the period of the pressure wave. According to the constitution, generation of noise can be prevented.

92. 发明专利

JPH0458503A FLOATING GUIDE COIL 失效
公开(公告)号：JPH0458503A
公开(公告)日：1992-02-25
申请号：JP16846790
申请日：1990-06-28
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI , NAKAGAKI SHIGEO
IPC分类号： H01F6/06 , H01F6/00
摘要： PURPOSE:To bear the floating guide reaction, which is increasing as vehicles become layer, with simple constitution by providing engaging parts, which engage integrally with each other when arranged side by side, on the sides of an insulating layer, which covers the coil conductor fitted with leads. CONSTITUTION:The coil conductor 6a, which is closed into 8-shaped loop, is covered with an insulating layer 16. Next, an attaching hole 17, through which the attaching bolts pierce, are provided in the upper part and the lower part of the insulating layer 16. And one side face is made into a projection 18, whose cross section is angular, and the other side face is made into a recess 19 which engages with the projection 18. Hereby, the degree of freedom in thickness direction can be restricted, and the attraction and the repulsion between a superconducting coil and a floating guide coil can be negated on the sides.

93. 发明专利

JPH0393441A VENTILATION COOLING ELECTRIC ROTARY MACHINE FOR VEHICLE 失效
公开(公告)号：JPH0393441A
公开(公告)日：1991-04-18
申请号：JP22733089
申请日：1989-09-04
申请人： TOSHIBA CORP
发明人： YAGI NOBUYUKI , NAGAYAMA TAKASHI , KOBAYASHI YOSHITAKA
IPC分类号： H02K5/20 , H02K9/06
摘要： PURPOSE:To balance inner temperature rise, as a whole, by setting the cooling air flow to be led through an air bypath to the downstream at the other end in the machine within a range of 15-40% of total cooling air flow to be taken into the machine through a cooling air supply port. CONSTITUTION:Cooling air is taken through a cooling air supply port 20 on one end side in a machine and fed through caps 23 between a stator core 3 and a rotor core 9 or through vents 24 in the rotor core 9 to the other end side in the machine. A portion of the cooling air is led to the outer circumference of a stator coil end section 5a located in the downstream at the other end in the machine. The cooling air flow to be led through the air bypath 30 to the downstream at the other end in the machine is set in a range of 15-40% of total cooling air flow to be taken in through the cooling air supply port. Remaining cooling air is fed through the caps 23 and the vents 24 toward the other end. Upon arrival at the other end in the machine, the cooling air is discharged through a discharge port 31. By such arrangement, temperature rise at each section can be controlled with good balance thus enabling optimal temperature rise design without increasing the cooling air flow.

94. 发明专利

JPH0248261A DRIVING DEVICE FOR ROPEWAY 失效
公开(公告)号：JPH0248261A
公开(公告)日：1990-02-19
申请号：JP19858288
申请日：1988-08-09
申请人： TOSHIBA CORP
发明人： KAWAMICHI SHUNICHI , NAGAYAMA TAKASHI
IPC分类号： B61B12/10
摘要： PURPOSE:To restrain a temperature rise of a reaction plate on the secondary side by erecting plural fins radially extended in the radial direction of a wire rope driving pulley on the back of the reaction plate on the secondary side. CONSTITUTION:A reaction plate 12 on the secondary side is formed by closely stacking a non-magnetic metal plate 12a and a magnetic metal plate 12b, and plural fins 12c radially extended in the radial direction of a driving pulley 11 are erected on the exposed surface of the magnetic metal plate 12b directed inward. When the temperature of the reaction plate 12 rises with the rotating drive of the wire rope driving pulley 11, the increased heat is transmitted to the fins 12c side of the reaction plate 12 and the fins 12c function as cooling fans to cool the reaction plate. Simultaneously, the fins 12c are forced to function as ventilating fans, too so as to increase the cooling effect of the reaction plate 12.

95. 发明专利

JPH0236747A LINEAR MOTOR COOLER FOR ELEVATOR 失效
公开(公告)号：JPH0236747A
公开(公告)日：1990-02-06
申请号：JP18461888
申请日：1988-07-26
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI
IPC分类号： B66B7/00 , B66B9/02 , H02K9/02 , H02K41/02
摘要： PURPOSE:To cool a linear motor without requiring such as a fan by supplying air flow produced through vertical motion of a cage, as cooling air, into a cooling air path. CONSTITUTION:An elevator path 1 is partitioned through a partition wall 25 into a cage side path 11 and a linear motor side path 17, where the upper and lower sections of the partition wall 25 are communicated through communication paths 27, 28. The linear motor 17 side chamber partitioned through the partition wall 25 serves as a cooling air path 29 having small cross-section for the elevator path 1. When a the cage 11 moves up and down in the elevator path 1, the air pushed out by the cage 11 flows as cooling air vertically through the cooling air path 29.

96. 发明专利

JPH01259739A BEARING DEVICE FOR ELECTRIC ROTARY MACHINE 失效
公开(公告)号：JPH01259739A
公开(公告)日：1989-10-17
申请号：JP8415788
申请日：1988-04-07
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI
IPC分类号： H02K5/173
摘要： PURPOSE:To decrease the relative rotational speed of the inner and outer rings of a bearing, by forming the outer ring of a first bearing fitting a rotor shaft to said inner shaft and the inner ring of a second bearing fitted to a frame supporting a stator into an integral body. CONSTITUTION:A rotating shaft 4 fitted to the rotor 3 of an electric rotary machine is fitted to the inner ring of a first bearing 5. Also, a frame 1 is provided with a second bearing 8, the outer ring of said bearing 8 is fastened to said frame 1, and the inner ring 10 of said bearing 8 is formed into an integral body with the outer ring 10 of said bearing 5. Said bearings 5 and 8 are juxtaposed in the axial direction and the diameter of the inner ring of said bearing 8 is made smaller than that of the outer ring of said bearing 5. Thus, the number of relative revolutions of the inner and outer rings of a bearing is made small and the rotational speed is increased without impairing lubricating properties.

97. 发明专利

JPH01177843A MAIN MOTOR FOR ELECTRIC VEHICLE 失效
公开(公告)号：JPH01177843A
公开(公告)日：1989-07-14
申请号：JP13588
申请日：1988-01-05
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI
IPC分类号： H02K5/04
摘要： PURPOSE:To effectively utilize a space, to reduce an axial size, and to disassemble a main motor by providing a protrusion on the top of a frame, splitting the frame, and connecting external leads to stator crossover tracks in the space in the protrusion. CONSTITUTION:A protrusion 30a is provided on the top of a frame 6 at a position corresponding to the end of a stator coil assembly 17. The frame 6 is axially divided at the protrusion 30a. An external lead 11 is penetrated through the protrusion 30a, and the lead 11 is connected to a stator crossover track 10 in the space in the protrusion 30a. Thus, a dead space between a motor and an electric vehicle can be effectively utilized, thereby reducing the axial size of the motor. Since it is split at the protrusion 30a, it can be divided and reassembled.

98. 发明专利

JPS6469239A ROTARY ELECTRIC MACHINE FOR VEHICLE 失效
公开(公告)号：JPS6469239A
公开(公告)日：1989-03-15
申请号：JP22330987
申请日：1987-09-07
申请人： TOSHIBA CORP
发明人： YUDACHI KATSUHIKO , NAGAYAMA TAKASHI
IPC分类号： H02K9/06 , H02K9/02
摘要： PURPOSE:To cool a bearing and prevent grease from being deteriorated, by applying cooling air flowing through a ventilation flue, on the periphery of the bearing of a bearing box, and by discharging the air from a discharge port. CONSTITUTION:Cooling air flowing into a frame 11 from an intake 15 is diverted to an air hole 8 for a first ventilation flue and a second ventilation flue 20 positioned on the center side of a core 3. By the cooling air diverted to the air hole 8, a rotor 2 is cooled. So far as the cooling air diverted to the second ventilation flue 20 is concerned, the flue 20 is much separated from the rotor bar 5 of a heat generation source, and so the temperature rise of the air is suppressed. The cooling air flows out of the ventilation flue 20 and flows on the periphery of a bearing 14, and the bearing 14 is cooled.

99. 发明专利

JPS6464537A DUST PROOF DEVICE FOR BEARING OF ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS6464537A
公开(公告)日：1989-03-10
申请号：JP21963087
申请日：1987-09-02
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI
IPC分类号： F16C35/00 , H02K5/16 , H02K5/20 , H02K7/102
摘要： PURPOSE:To prevent the deterioration of grease and to extend its life by providing cooling exhaust ports along a rotation axis to the side plate of a rotary electric machine positioned to the side of a brake disc and spraying cooling fluid of the rotary machine on the rotation axis. CONSTITUTION:A brake disc 28 is loaded on the axis to a rotation axis 24 of a rotary electric machine 20, a cooling exhaust port 30 is provided along the rotation axis 24 to the side plate 21a of the rotary electric machine 20 positioned to the side of the brake disc 28, and the cooling fluid of the rotary electric machine 20 is sprayed to the rotation axis 24 from the cooling exhaust port 30. Accordingly, at the time of driving of the rotary electric machine 20, part of the cooling fluid produced by the rotation of a rotor 24a is exhausted from each of exhaust ports 21b. The rest of cooling fluid at the time of braking is ejected in the direction of the axis of the rotation shaft 24 from each of cooling exhaust ports 30 to cool the conduction heat of the rotation axis 24, and at the same time, even if the abraded powder produced at the time of braking is scattered to the side of a bearing 23, the adherence of the powder can be prevented.

100. 发明专利

JPS6343547A VENTILATING AND COOLING STRUCTURE OF ROTARY ELECTRIC MACHINE FOR ROLLING STOCK 失效
公开(公告)号：JPS6343547A
公开(公告)日：1988-02-24
申请号：JP18656786
申请日：1986-08-08
申请人： TOSHIBA CORP
发明人： NAGAYAMA TAKASHI
IPC分类号： H02K9/06
摘要： PURPOSE:To cool a stator and a rotor effectively, by introducing the cooling wind through a bypass provided on the outside of the stator of a rotary electric machine and by guiding a part of the cooling wind directly to a stator coil or a rotor, etc. CONSTITUTION:A rotation of a fan 5 together with a shaft 3 introduces cooling wind into the inside of a motor from an inlet 14. A part of the cooling wind cools a stator coil 12, a stator core 11 and a rotor core 6. Then, it cools a rotor bar 7 and a short-circuit ring 8. After that, it is discharged using the fan 5 from an outlet 15. The other part of the cooling wind is led directly to the stator coil 12 on the lee side through a bypass. A part of the cooling wind led in this direction cools the stator coil 12 and then discharged from the outlet 15 through a clearance of a dashboard 18. The other part of it cools the rotor bar 7 and the short-circuit ring 8 through the stator coil 12 and then it is discharged.

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