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31. 发明专利

JPH0223092A MOTOR OPERATED BY OUTPUT TORQUE DESIGNATED BY AC POWER SOURCE 失效
公开(公告)号：JPH0223092A
公开(公告)日：1990-01-25
申请号：JP17173688
申请日：1988-07-12
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02P6/16 , H02P6/06 , H02P6/08 , H02P8/00 , H02P25/08 , H02P25/098 , H02P29/20 , H02P29/40
摘要： PURPOSE:To reduce a smoothing capacitor to a small capacity, and to suppress a noise by so controlling as to make an armature current value (exciting current value) corresponding to a load by a chopper. CONSTITUTION:The output of an AC power source 19 of single phase or the like is rectified by a full-wave rectifier 2, and DC outputs obtained from terminals 2a-2b are supplied to conduction controllers A-B of A-B-phase armature coils of a motor through a filter capacitor 3. Salient-poles 1a-1g are provided on the rotor 1 of the 3-phase reluctance type motor, and poles 16a-16f are provided on an armature 16. The poles 16a-16f and exciting coils 17a-17f are arranged on a stationary armature 16. Thus, one phases of the A- and B-phases are independently controlled to be conducted by a chopper, its phase angle is set to 180 degrees, and an armature current is controlled by a reference voltage irrespective of an applied voltage.

32. 发明专利

JPH01286794A TWO-PHASE MOTOR OF RELUCTANCE TYPE 失效
公开(公告)号：JPH01286794A
公开(公告)日：1989-11-17
申请号：JP11359288
申请日：1988-05-12
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02K29/00 , H02K29/03 , H02P6/06 , H02P6/08 , H02P6/16 , H02P6/28
摘要： PURPOSE:To obtain the reluctance motor of high speed and high torque, by using a high DC power source according to output torque and rotational frequency, and by setting the sharp rise of exciting current, to return stored magnetic-energy to the power source. CONSTITUTION:With a multiplier circuit 53, the position detecting signal of input to terminals 51a, 51b is multiplied by the reference voltage for specifying the output torque of input to a terminal 58a. From an operational amplifier 57, the output of signal is generated when exciting current is made greater than the output of a multiplier circuit 58. Then, from a monostable circuit 56, the output of signal is generated for an only specified time. When the input of the position detecting signal is provided, then by an AND circuit 65a or 65b, transistors 10a-10d are turned ON, and the exciting current flows to an exciting coil A or B. While the output of the signal is generated from the monostable circuit 56, the transistors 10a-10d are turned OFF and magnetic energy stored in the exciting coil A or B is discharged to a power source.

33. 发明专利

JPH01269719A MAGNETIC BEARING DEVICE 失效
公开(公告)号：JPH01269719A
公开(公告)日：1989-10-27
申请号：JP9689288
申请日：1988-04-21
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： F16C32/04 , F16C39/06
摘要： PURPOSE:To obtain a magnetic bearing which is small-sized and low-priced and has productivity by disposing the conical recess surfaces of the first and second magnets against the respective conical surfaces of the third and fourth magnets through a designated gap and magnetizing each opposing pair in the same polarity. CONSTITUTION:The first and second magnets 7a, 7b are fitted to both sides of a cylinder 1 made of soft steel, and conical recess portions are formed on the opposite surfaces of the magnets. The third and fourth conical magnets 6a, 6b are fixed to the end portion of a rotary shaft 5. The opposite surfaces of the magnets 6a, 7a are magnetized to have the same N pole, and the opposite surfaces of the magnets 6b, 7b are magnetized to have the same S pole. Voids between the opposite surfaces of these magnets are kept at equal set distances. Accordingly, by the resiliency of the same poles between the magnets 6a and 7a and between the magnets 6b and 7b, the respective magnets and the rotary shaft 5 can form a small-sized, low-priced and light magnetic bearing.

34. 发明专利

JPH01248988A SINGLE PHASE SEMICONDUCTOR MOTOR 失效
公开(公告)号：JPH01248988A
公开(公告)日：1989-10-04
申请号：JP7197588
申请日：1988-03-28
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02P6/08 , H02P6/06 , H02P6/182 , H02P6/26
摘要： PURPOSE:To lower a noise level by providing a transistor in parallel with an armature coil and discharging magnetic energy stored in the armature coil through control of power conduction timing of the transistor. CONSTITUTION:An output from a Hole element 10 is amplified through operational amplifiers 11a, 11b and provided through operational amplifiers 12a, 12b and AND gates 13a, 13b to transistors 15a, 15b. When the transistors 15a, 15b are conducted, armature coils J, K are conducted respectively. The armature coils J, K are provided in parallel with transistors 16a, 16b, and energy stored in the armature coils J, K is discharged through control of conduction timing of the transistors 16a, 16b.

35. 发明专利

JPH01220763A REDUCTION DEVICE FOR HIGH SPEED MOTOR 失效
公开(公告)号：JPH01220763A
公开(公告)日：1989-09-04
申请号：JP4196188
申请日：1988-02-26
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： F16H7/02 , H02K7/10
摘要： PURPOSE:To elongate durability hours broadly in a case of deceleration on high speed motor by providing a small diameter pulley on an output shaft of the motor and a first, a second pulleys in large diameter on both sides of the motor, and putting on belts respectively between the small diameter pulley and the first, the second pulleys and between the first and the second pulleys. CONSTITUTION:While a motor A is stopping, a small diameter pulley 2 receives force to left ward owing to tension on a belt 5. Again, due to tensions on belts 7a, 7b, the pulley 2 receives force to right ward. When it is established so as to become equal in tension on the belt 5 to tensions on the belts 7a, 7b forces for the pulley 2 cancel to each other and disappear. Even if the motor A rotates, belt tensions increase in proportion to output torque but it never change to cancel each other for disappearing. Therefore, rolling bearings supporting a rotation shaft 1 receive no side pressure, so even on high speed revolution, normal durability hours can be obtained. As pulleys 4a, 4b rotate in synchronized through a belt 8, load is driven with a rotation shaft 3a as an output shaft.

36. 发明专利

JPH01214282A AUTOMATIC BRAKE DEVICE 失效
公开(公告)号：JPH01214282A
公开(公告)日：1989-08-28
申请号：JP3765188
申请日：1988-02-22
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02P3/04 , F16D65/28
摘要： PURPOSE:To stop by an electromagnetic braking by shortcircuiting the armature coil of a motor having a magnet rotor at the time of a power interruption due to an accident. CONSTITUTION:A rotary wheel 2 is secured to the rotary shaft 1 of a motor. A rotary lever 4 is rotatably supported through a spring 10a secured to the rotary lever 4 to a supporting shaft 10 stood on a body 11. A columnar post 3 is engaged with the ringlike protrusion 3a of the lever 4, a-shaped core 8 is secured to its body, and an exciting coil 8a is engaged. A spring 7 is engaged between the movable end of the lever 4 and a boy 7a, and the lever 4 is elastically biased clockwise. A slide wheel 6 is secured to the lever 4. Thus, the motor which becomes a drive source is automatically electromagnetically braked at the time of power interruption due to an accident, and a load is stopped in a short time.

37. 发明专利

JPH01185192A SYNCHRONOUS TYPE THREE-PHASE SEMICONDUCTOR MOTOR 失效
公开(公告)号：JPH01185192A
公开(公告)日：1989-07-24
申请号：JP325288
申请日：1988-01-12
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02K29/00 , H02P6/06 , H02P6/08 , H02P6/16 , H02P6/182 , H02P6/28
摘要： PURPOSE:To enable the quantity of a Hall element to be one and facilitate the composition and assembly, by setting a position detecting magnet rotor distinguished from a torque generating field magnet rotor. CONSTITUTION:On a rotary shaft 1, the central section of a mild steel disc is fixed, and on the back side surface of the mild steel disc, a ring-formed field magnet 5 is fitted. The field magnet 5 is composed of ring-formed ferritic magnets provided with N, S poles 5a-5d at equal pitches along the circumferential surface. The outer periphery of the field magnet rotor 5 is set to be a ring-formed position detecting magnet rotor 8, and the position detecting magnet 8 is provided with magnetic poles 8a, 8b,... and zero magnetic field sections 9a.... A Hall element 11a is contained in a part of an IC 29a, and is mounted on the intermediate section of the adjacent sections of adjacent armature coils 10a, 10c, and is confronted with the position detecting magnet rotor 8.

38. 发明专利

JPH01152990A THREE-PHASE RELUCTANCE MOTOR 失效
公开(公告)号：JPH01152990A
公开(公告)日：1989-06-15
申请号：JP30855187
申请日：1987-12-08
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02P6/08 , H02P6/06
摘要： PURPOSE:To increase speed and torque, by employing a horizontal U-shaped core as the magnetic pole of an armature, then mounting an exciting coil with both foot sections thereof being employed as magnetic poles and closing flux of the magnetic poles by means of two salient poles facing each other. CONSTITUTION:A rotary shaft 1 is supported rotatably by bearings in housing, and a rotor 2 is secured. The rotor 2 is provided with fourteen salient poles with same width and pitch. A fixed armature 3 is provided with magnetic poles 4a- projecting to the inside of annular sections 3a- where the widths of respective magnetic poles 4a-4b are equal to the width between salient poles 2a-2b, and the magnetic poles 4a- are formed while separated each other by same width. The circular sections 3a- are provided with curved recesses 8a-8f. Voids 10a-10f are cut from the armature 3 to split the annular section into six sections, and respective splitted sections are employed as horizontal U-shaped cores with both foot sections thereof being employing as magnetic poles. Exciting coils 5a- are mounted on the magnetic poles 4a-. Consequently, flux is closed by the salient poles 2a-2b and no flux is leaked.

39. 发明专利

JPS6481649A SINGLE-PHASE SMALL-SIZED MOTOR 失效
公开(公告)号：JPS6481649A
公开(公告)日：1989-03-27
申请号：JP23622987
申请日：1987-09-22
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02K21/22
摘要： PURPOSE:To improve efficiency, by stopping conduction in the final period of the conduction, and by suppressing the action of said stopping only at the time of starting. CONSTITUTION:The salient poles 4a-4d of the armature magnetic-cores 4 of four poles are wound up with armature coils 5a-5d. Inside a cup 13, a ring- formed magnet rotor 6 is fixed, and magnetic poles 6a, 6b... are arranged. A space between the salient poles 4a-4d and the rotor 6 is not equal on the left and right, and so cogging torque is generated. When current is reciprocated and conducted to the armature coils 5a-5d on every rotation of the magnet rotor 6 at the electrical angle of 180 degrees, then self-starting can be performed. In this case, in the initial period of conduction, for an inductance, rise is smoothly performed, but in the final period of the conduction, an induction constant is reduced, and an inductance is reduced, and current is increased, and efficiency is made worse. As this counter-plan, the position of the rotor 6 is detected, and the final period of the conduction is known, and the conduction is interrupted.

40. 发明专利

JPS6464587A THREE-PHASE DC MOTOR DRIVEN BY TWO INTEGRATED CIRCUITS INCLUDING ONE POSITION-SENSING ELEMENT 失效
公开(公告)号：JPS6464587A
公开(公告)日：1989-03-10
申请号：JP21647487
申请日：1987-09-01
申请人： SECOH GIKEN KK
发明人： BAN ITSUKI
IPC分类号： H02K29/00 , H02P6/06 , H02P6/08 , H02P6/14 , H02P6/17
摘要： PURPOSE:To simplify the constitution of an apparatus and improve its mass production capability by constituting said apparatus through selecting a rectifier as a position-sensing magnet and a brush as in integrated circuit. CONSTITUTION:A silicon steel disc 7 forming a magnetic path is stuck on a substrate 2, and a fan-shaped armature coil 6 is further stuck thereon. Conductor parts of an armature coil 10 effective for torque are arranged at equal pitches on the magnetic material disc 7. The conduction control circuit 29 of armature coils 10a-10c is made into IC and placed on projections 2a-2b of said substrate 2. The central part of a soft steel disc 4 is fixed to a rotating shaft 1 and a field magnet rotor 5 is stuck on the reverse side of said disc 4. Also, Hall elements 11a-11b are placed midway between armature coils 10a, 10c and opposed to a position sensing magnet rotor 8. The radial width of the rotor 8 is made equal to the outer peripheral part coil width and provided in the ineffective part for an output torque. Thus, the constitution of an apparatus is simplified, because it is based on two IC in the same way as a brush.

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