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1. 发明专利

JPH1198791A BRUSHLESS DC MOTOR 失效
公开(公告)号：JPH1198791A
公开(公告)日：1999-04-09
申请号：JP25078897
申请日：1997-09-16
申请人： MITSUBISHI HEAVY IND LTD , SHINANO DENKI KK
发明人： HIRANO MASAHIRO , KOGURE TAKATOSHI , KUROMARU HIROSHI , FUJIWARA KENJI , BABA ISAO , HENMI SABURO
IPC分类号： H02K1/16 , H02K1/27 , H02K21/16 , H02K29/00
摘要： PROBLEM TO BE SOLVED: To increase energy density, by specifying the number of the poles of a permanent magnet, and specifying the number of slots which permits a three-phase armature winding formed at a stator iron core to be disposed for concentrated winding. SOLUTION: Number of the poles of a permanent magnet 2 in a rotor iron core 3 is formed of 14 pieces and the number of slots is formed of 12 pieces, which permits three-phase armature windings U, V, W, U', V', W' formed at a stator iron core 1 to be disposed for concentrated winding. Therefore, the energy density Edc is improved by forming multi-polarization of the 14 poles, thus enabling to attain size reduction of 10 to 15% in a motor volume compared to conventional embodiments. Quantity of magnet used can also be reduced by 30 to 40% from a product with identical demagnetization strength compared to the conventional embodiment, thus enabling to attain cost reduction. The current capacity of a deriving amplifier is not changed by forming multi- polarization, therefore, it is possible to use a power semiconductor element equivalent to that of a conventional motor. It is also possible to attain the equivalent performance to that of the conventional motor in cogging torque.

2. 发明专利

JPS60162456A BRUSHLESS GENERATOR 失效
公开(公告)号：JPS60162456A
公开(公告)日：1985-08-24
申请号：JP1508984
申请日：1984-02-01
申请人： SHINANO DENKI KK
发明人： BABA ISAO
IPC分类号： H02K19/26
摘要： PURPOSE:To reduce the size and the cost and to improve the durability by exciting a main generator directly by the output of an exciting generator. CONSTITUTION:The output of a chopper control type voltage stabilizer AVR is connected with a field winding 2 of a direct exciting generator GE. In order to obtain the prescribed exciting state, an AC power source of the same frequency as the output voltage of the generator GM is applied to the generating GE to excite. When the shaft is rotated at the prescribed speed in this manner, an AC power is fed to the armature winding 6 of the generator GM, and the output of the AVR is applied to the field winding 2 of the generator GE. The stator of the generator GE is formed of 2-pole stator core 3 and the field winding 2, the rotor has 12 slots 9, the armature winding 1 is wound to obtain the output voltage from the generator GM.

3. 发明专利

JPH10285875A SERVOMOTOR 失效
公开(公告)号：JPH10285875A
公开(公告)日：1998-10-23
申请号：JP10098497
申请日：1997-04-03
申请人： SHINANO DENKI KK
发明人： BABA ISAO
IPC分类号： H02K9/06 , H02K9/08 , H02K9/16
摘要： PROBLEM TO BE SOLVED: To obtain a servomotor in which a transmission route from a rotor a frame can be ensured in addition to a transmission route from the rotor through a stator to the frame, whose cooling capability with reference to heat generated by the rotor can be enhanced, and which is extremely effective as measures against a temperature by heat generated from the stator and the rotor when the high efficiency, the small size and the high speed of the motor are pursued. SOLUTION: A large-diameter fan 6 and a small-diameter fan 7 are provided on both sides which sandwich a permanent-magnet rotor 1 at a shaft 4, and an internal air circulation passage 8 and an external air circulation passage 6 are formed at the permanent-magnet rotor 1 and a case 3. Since the stirring force of the large- diameter fan 6 exceeds the stirring force of the small-diameter fan 7, the internal air which is stirred by the large-diameter fan 6 is passed through the external air circulation passage 9, it is stirred by the small-diameter fan 7, it reaches an internal space, it is passed through the internal air circulation passage 8, it is stirred by the large-diameter fan 6, and it reaches the internal space. As a result, the internal air is circulated, a rise in the temperature of a motor as a whole can be suppressed, and a rise in the temperature of bearings 10, 11 can be suppressed.

4. 发明专利

JPH0833079B2 失效
公开(公告)号：JPH0833079B2
公开(公告)日：1996-03-29
申请号：JP1711288
申请日：1988-01-29
申请人： MIKASA SANGYO KK , SHINANO DENKI KK
发明人： YOSHIDA KENJI , SHIONOYA AKINOBU , MATSUSHITA KAZUO , BABA ISAO
IPC分类号： B06B1/16 , E04G21/08

5. 发明专利

JPH01192960A CONCRETE VIBRATOR 失效
公开(公告)号：JPH01192960A
公开(公告)日：1989-08-03
申请号：JP1711288
申请日：1988-01-29
申请人： MIKASA SANGYO KK , SHINANO DENKI KK
发明人： YOSHIDA KENJI , SHIONOYA AKINOBU , MATSUSHITA KAZUO , BABA ISAO
IPC分类号： B06B1/16 , E04G21/08
摘要： PURPOSE:To prevent the risk of electric shock by using induced voltage for detecting a revolved position of a permanent magnet rotor and making a driving source of a vibrator of a sensor-less semiconductor motor controlling the supply current of a stator winding by a semiconductor inverter. CONSTITUTION:Synchronizing with rotation of a permanent magnet rotor 2b, the third harmonic voltage component changing a period repeatedly in comparison with number of revolutions is obtained. A revolved position of the permanent magnet rotor 2b is electrically detected at a position separated from a vibrator's body A. A setting clock pulse from a speed setting circuit 15 inputted into a speed controlling circuit B2 is set as a reference to compare with a pulse signal, the current to a stator winding 2a is controlled at a communication controlling circuit B3 by negative feedback control of a inverter circuit B4, and at the same time, a sensor-less semiconductor motor is the driving source 21 of a vibrator. Accordingly, remote control can made and operational flexibility can be increased.

6. 发明专利

JPS609354A GENERATOR 失效
公开(公告)号：JPS609354A
公开(公告)日：1985-01-18
申请号：JP11432983
申请日：1983-06-27
申请人： SHINANO DENKI KK
发明人： BABA ISAO
IPC分类号： H02K19/24 , H02K19/34 , H02K19/16
摘要： PURPOSE:To enable to simultaneously generate two types of voltages having high and low frequencies by one generator by winding a low and high frequency armature windings on a stator core. CONSTITUTION:Exciting windings 5a, 5b are radially wound on a rotor core 6 so that salient poles become the same number of two groups 6Aa, 6Ba. The salient poles 6Aa of the portion A of the core 6 are all excited to N-poles by the windings 5a, 5b, and the salient poles 6Ba of the portion B are all excited to S-poles. A single phase AC output can be obtained from the armature winding 12 wound in the slot 2. When the poles 6Aa of the portion A are all excited to N-poles and the poles 6Ba of the portion B are all excited to S-poles, the bottom of the recess 6Ab between the poles 6Aa is slightly excited to the N-pole, and the bottom of the recess 6Bb between the poles 6Ba is slightly excited to the S-poles. High frequency 3-phase outputs are obtained from 3-phase armature windings 4 wound in the slots 2.

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