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21. 发明专利

JPH04159498A IMPELLER OF MULTIBLADE FAN 失效
公开(公告)号：JPH04159498A
公开(公告)日：1992-06-02
申请号：JP28200590
申请日：1990-10-22
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： HASHIMOTO KATSUHIKO , YAMAZAKI SUSUMU , FUKASAKU YOSHINORI , MIRUMACHI MITSUAKI
IPC分类号： F04D29/30
摘要： PURPOSE:To obtain lowness of noise while holding conventional performance by setting a flow path width between blades to an optimum value while an outlet angle of the blade in an impeller to an optimum angle in pressure and negative pressure surface sides. CONSTITUTION:In an impeller 3, an air intake port 5 is formed in one axial line direction of the impeller further to close the other by a wall (main plate) 6 and also a boss 7 is mounted to the impeller so as to connect a shaft for driving the impeller rotated. A reinforcing ring 8 is mounted to a blade peripheral side in an air intake port side. Further, a blade 9 is mounted vertically to the main plate 6 to generate a pressure difference by a speed difference between internal and external diameters. Here, an outlet angle beta2 of a pressure surface is set to 140 to 160 deg., further an angle of a negative pressure surface is set to 170 to 180 deg., respectively. On the other hand, ratio (S2/S1) of an impeller inlet part flow path width S1 to an impeller outlet part flow path width S2 is set to 0.6 to 0.65.

22. 发明专利

JPH04156260A SMALL-SIZED MOTOR WITH COMMUTATOR 失效
公开(公告)号：JPH04156260A
公开(公告)日：1992-05-28
申请号：JP27904890
申请日：1990-10-19
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： FUKASAKU YOSHINORI , FUJINO SHINICHI , MIZOGUCHI HIROAKI , MIRUMACHI MITSUAKI
IPC分类号： H02K7/08 , H02K23/00
摘要： PURPOSE:To prevent the scattering of oil from a bearing so as to reduce the abnormal wear of a brush by making the axial dimension of a ball-core bearing larger than that of the oil supplying section and arranging a flinger so that the flinger can cover the outer peripheral section of the bearing. CONSTITUTION:A bearing unit 8 is composed of an oil supplying section 8a and ball-core bearing 8b and the bearing 8b supports a shaft 7 in a rotatable state. A rotor 10 is composed of a core 2, commutator 3, coil 4, and flinger 15, all of which are forcibly put on the shaft 7 and front end section 15a of the flinger 15 covers the bearing 8b projecting from the section 8a. Accordingly, even when the oil flowing out front the end face of the bearing 8b or from the circumferential surface of the bearing 8b by the friction with the shaft 7 is scattered front the used surface of a washer for adjusting thrust 6 by a centrifugal force when the washer 6 is rotated, the oil is not scattered outside, since the flinger is formed so as to cover the end face of the ball-core bearing. Therefore, the abnormal wear of a brush can be eliminated, since no oil adhere to the surface of the commutator.

23. 发明专利

JPS6354911A FILTER BODY FOR ROOM AIR CLEANER 失效
公开(公告)号：JPS6354911A
公开(公告)日：1988-03-09
申请号：JP19889286
申请日：1986-08-27
申请人： HITACHI LTD , HITACHI AUTOMOTIVE ENG
发明人： MIRUMACHI MITSUAKI , NOTO KUNIHIRO , FUKASAKU YOSHINORI
IPC分类号： B01D46/52 , B01D53/04 , B01D53/38 , B01D53/81 , B60H3/00 , B60H3/06
摘要： PURPOSE:To facilitate the assembling of the title filter in frames by sticking a member for uniformly keeping the interval between the puckers on the peak surface of a puckered filter medium so that the member can be freely expanded and contracted in the puckering direction to easily maintain and fix the interval between the puckers of the folded filter medium. CONSTITUTION:The filter medium 3 of a filter body 1 is obtained by folding nonwoven fabric or filter paper in the form of an accordion curtain, and a siding 3B having a knob 3A is fixed to both side faces. A holding band 3C is stuck and fixed on the peak part of the pucker of the filter medium 3 to equalize the intervals between puckers when the medium is opened, and the medium can be freely expanded and contracted. A deodorant 5 is placed on the deodorant holding plate 6D of a lower frame 6, then the folded filter medium 3 is expanded, and the siding 3B is inserted into a pocket 6B. Consequently, the filter medium 3 forms uniform puckers at a touch. An upper frame 2 is then covered and fixed, and the filter body 1 for an air cleaner can be obtained.

24. 发明专利

JP2006187174A ROTOR OF ROTARY MACHINE, ITS MANUFACTURING METHOD AND ELECTRIC POWER STEERING MOTOR 有权
公开(公告)号：JP2006187174A
公开(公告)日：2006-07-13
申请号：JP2004380560
申请日：2004-12-28
申请人： HITACHI LTD
发明人： HARADA KOJI , MIRUMACHI MITSUAKI
IPC分类号： H02K1/28 , H02K1/18
摘要： PROBLEM TO BE SOLVED: To provide a highly accurate rotor and its manufacturing method for fastening a shaft tightly with a core while piece-part accuracy is held, namely without deteriorating the piece-part accuracy of the shaft or applying excessive deformation of the core, and to provide an electric power steering motor. SOLUTION: The rotor 130 is formed by laminating two or more sheets of silicon steel and made up of a rotor core 132 having a through-hole at its center and a shaft 138 to be inserted by press into the through hole of the rotor core 132. Annealing treatment is locally applied to the vicinity of the surface of the through-hole in the rotor core 132. COPYRIGHT: (C)2006,JPO&NCIPI

25. 发明专利

JP2006187130A ELECTRIC POWER STEERING SYSTEM USING WINDING LEAD-ACID BATTERY, AND MOTOR AND INVERTER DEVICE USED THEREFOR 审中-公开
公开(公告)号：JP2006187130A
公开(公告)日：2006-07-13
申请号：JP2004378582
申请日：2004-12-28
申请人： HITACHI LTD
发明人： HONBO MICHIKO , SAKAI MASANORI , INNAMI TOSHIYUKI , MIRUMACHI MITSUAKI , SASAKI SHOJI , KITAMURA MASAJI , TAJIMA FUMIO , SHIRAKAWA SHINJI
IPC分类号： H02K3/18 , B62D5/04 , H02K1/18 , H02K21/16 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide a highly efficient, highly reliable electric power steering device. SOLUTION: A winding lead-acid battery comprises a group of electrode plates formed by winding the ones with strip separators 22 inserted between strip thin-plate positive electrode plates 21 and strip thin-plate negative electrode plates 20 and soaked in an electrolyte, and is used as a power source of the electric power steering system. In a motor, plate-shaped conductors are used for a wire connection ring 116 that electrically connects a cable 162, and leads multiple-phase AC power to a stator coil 114 to the stator coil 114. The motor is used as an electric steering motor 100. COPYRIGHT: (C)2006,JPO&NCIPI

26. 发明专利

JP2002238188A STATOR OF MOTOR 失效
公开(公告)号：JP2002238188A
公开(公告)日：2002-08-23
申请号：JP2001034212
申请日：2001-02-09
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： MIRUMACHI MITSUAKI , EBIHARA KOHEI , FUJIWARA SHIN
IPC分类号： H02K1/17
摘要： PROBLEM TO BE SOLVED: To provide a stator of a motor with enhanced reliability, by effectively preventing protrusion of auxiliary poles. SOLUTION: Auxiliary poles 3 and magnets 2 are held on the inner circumferential face of a yoke 1 by means of spring members 4. The auxiliary pole 3 is provided with projected portions 3a and 3b on both sides of the auxiliary pole, on a side where the auxiliary pole is in contact with the yoke 1, and the magnet 2 is provided with a recessed portion 2a, to be engaged with the projected portion 3a on the auxiliary pole 3. The spring member 4 has a recessed portion 4b which is to be engaged with the projected portion 3b on the auxiliary pole 3, on a side where the spring member is in contact with the auxiliary pole 3.

27. 发明专利

JPH10304640A BRUSHLESS MOTOR 失效
公开(公告)号：JPH10304640A
公开(公告)日：1998-11-13
申请号：JP10423397
申请日：1997-04-22
申请人： HITACHI LTD , HITACHI CAR ENG CO LTD
发明人： FUKASAKU YOSHINORI , MIRUMACHI MITSUAKI , YOKOYAMA TAKASHI , FUJIWARA SHIN
IPC分类号： H02K29/00 , H02K5/10 , H02K5/24
摘要： PROBLEM TO BE SOLVED: To prevent rainwater infiltration, and damp casing vibration excitation force by utilizing irregularity which is formed at the mating faces of split cylindrical casings, and inserting an O-ring into a faucet for fixing the split casings with each other. SOLUTION: A tubular casing 7 is formed by a light member such as a resin of non-magnetic material, and is constituted of right and left of cups 7b, 7c which is split into two pieces at a substantially central vertical surface in the axial direction of a rotating machine. By forming a groove part 7f of a ring shape and a protrusion 7g at the split surface which are fitted to each other, the stress generated at the split surface at the time of fixing work by a fitting leg 7d is received by one casing 7b to suppress the opening of the split surface to be minimum. To improve waterproofing, a small-diameter O-ring 9 which is an elastic member is positioned in the faucet part consisting of the annular groove part 7f and the protrusion part 7g with irregularities, which is fitted to each other. It is thus possible to completely seal rainwater infiltration, even under a harsh environmental condition with the strength of the split surface maintained.

28. 发明专利

JP2007049838A Rotating electric machine 有权
标题翻译：旋转电机
公开(公告)号：JP2007049838A
公开(公告)日：2007-02-22
申请号：JP2005232423
申请日：2005-08-10
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIGAMI TAKASHI , KITAMURA MASAJI , KOIZUMI OSAMU , MIRUMACHI MITSUAKI
IPC分类号： H02K5/04 , H02K1/18 , H02K5/02
摘要： PROBLEM TO BE SOLVED: To provide a rotating electric machine wherein a loss torque is reduced.
SOLUTION: A stator 10 is constructed of a stator core 12 and stator coils 14 wound on the teeth of the stator core 12. The outside diameter of the stator 10 is smaller than the inside diameter of a pipe-like case 20, and the stator 10 is held on the inner circumferential side of the case 20 by a holding material 30. A rotor 40 is positioned on the inner circumferential side of the stator 10, and is rotatably supported by a bearing held by a bracket. The stator core 12 has through-holes 12AY penetrating it in the axial direction. The holding material 30B filled in the through-holes, and a holding material 30A that holds the stator 10 on the inner circumferential side of the case 20, are integrated with each other through holding materials 30C, 30D at both ends of the stator.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种其中损失转矩减小的旋转电机。解决方案：定子10由定子芯12和缠绕在定子芯12的齿上的定子线圈14构成。定子10的外径小于管状壳体20的内径，并且定子10通过保持材料30保持在壳体20的内周侧。转子40位于定子10的内周侧，并且由支架保持的轴承可旋转地支撑。定子铁芯12具有沿轴向穿过其的通孔12AY。填充在通孔中的保持材料30B和在壳体20的内周侧保持定子10的保持材料30A通过定子的两端的保持材料30C，30D而彼此一体化。版权所有（C）2007，JPO＆INPIT

29. 发明专利

JP2006333670A Rotary electric machine, manufacturing method of stator coil, and motor for electric power steering 有权
标题翻译：旋转电机，定子线圈的制造方法和电动转向电机
公开(公告)号：JP2006333670A
公开(公告)日：2006-12-07
申请号：JP2005156504
申请日：2005-05-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIGAMI TAKASHI , KITAMURA MASAJI , KOIZUMI OSAMU , MIRUMACHI MITSUAKI
IPC分类号： H02K3/04 , B62D5/04 , H02K1/18 , H02K3/44 , H02K15/095 , H02K21/16
CPC分类号： H02K3/522 , H02K15/0025 , H02K15/095 , H02K2201/15
摘要： PROBLEM TO BE SOLVED: To provide a rotary electric machine which shortens an axial length, a manufacturing method of a stator coil, and a motor for electric power steering. SOLUTION: A stator 110 of the rotary electric machine includes a stator core 112, and the polyphase stator coils 114 incorporated in the stator core. The stator core 112 is formed by combining a plurality of split core strips. The stator coils 114 are wound by concentrated winding on a coil bobbin 112BO on which an outer periphery of teeth portions of the core strips is mounted, and coils which are the same in phase but different in winding directions are wound continuously at the teeth portions adjoining each other. A jumper wire EL which connects the first stator coil of wound around the first teeth portion to the second stator coil wound around the second teeth portion includes an axial end of the coil bobbin, and is positioned at a more central side of an axial direction than the end. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供缩短轴向长度的旋转电机，定子线圈的制造方法和用于电动助力转向的电动机。解决方案：旋转电机的定子110包括定子芯112和结合在定子芯中的多相定子线圈114。定子铁心112通过组合多个分裂铁芯带而形成。定子线圈114通过集中绕组卷绕在其上安装有芯条的齿部的外周的线圈架112BO上，并且在相位相同但卷绕方向不同的线圈连续地缠绕在相邻的齿部彼此。将卷绕在第一齿部的第一定子线圈与绕第二齿部缠绕的第二定子线圈连接的跨接线EL包括线圈架的轴向端部，并且位于轴向的中心侧，结束。版权所有（C）2007，JPO＆INPIT

30. 发明专利

JP2006187175A ELECTRIC POWER STEERING MOTOR AND MANUFACTURING METHOD THEREFOR 审中-公开
公开(公告)号：JP2006187175A
公开(公告)日：2006-07-13
申请号：JP2004380632
申请日：2004-12-28
申请人： HITACHI LTD
发明人： YAGAI MASAMICHI , MIRUMACHI MITSUAKI , UEDA TOSHIAKI , ONOSE SHIN
IPC分类号： H02K15/04
摘要： PROBLEM TO BE SOLVED: To provide a small-sized electric power steering motor and its manufacturing method for carrying out wire connection of a coil easily in a space-saving way. SOLUTION: In a multi-phase stator coil 114 assembled in a stator core, wire connection is carried out for each phase by using wire connection rings CR(UV), CR(VW), CR(WU) at each coil end of the stator coil 114. A bus bar 117 fed with power from outside is laminated on the wire connection ring CR and connected electrically to the wire connection ring CR. COPYRIGHT: (C)2006,JPO&NCIPI

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