• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The INSURANCE MACHINE of a CONTACT-FREE TORGE of a DC NON-RATOR contains a rotor in the form of a four-pole permanent magnet and a stator, in which a rotor is mounted with a gap relative to it, evenly distributed across the stator. the circumference of the bore grooves placed a multi-phase winding of sections in the form of coils, so that, in order to increase its accuracy by reducing the output voltage ripple from eubtzovyh harmonics, thirty three slots are made on the stator, each phase winding contains four sections connected in series, and the cut is kat (L NIS is equal to eight slots
    公开号:SU1158055A3
    申请号:SU823451128
    申请日:1982-05-24
    公开日:1985-05-23
    发明作者:Коцаи Юосинору；Амемийя Юоити；Ивамацу Нобору
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to a synchronous machine for a contactless tachogenerator of direct current, in which the ripple of the shape of the output voltage caused by groove pulsation is reduced.
    The aim of the invention is to improve the accuracy of a synchronous machine by reducing the ripple of the output voltage from the tooth harmonics. 1S
    In FIG. 1 shows a schematic representation of the proposed synchronous machine; in FIG. 2 - voltage waveforms in winding sections of a synchronous machine; figure 3 - curve of the resultant | $ phase voltage.
    Rotor 1 is a four-pole permanent magnet. Stator 2 is made with thirty-three grooves uniformly distributed around the stator jq circumference. The sections of the winding phase are made in the form of coils with a pitch of eight grooves * Accordingly, each section of the winding takes 8/33 of a circle. The rotor poles divide the circumference of the stator bore by n equal to four parts, and the sections of each phase divide the circumference of the stator bore into 33/8 calculated parts, which differs slightly from ή. The magnetic poles of the rotor are arranged so that the circumference of the rotor is divided into four equal parts. Therefore, the relationship between the phase of the magnetic pole and the phase of the winding section for equal winding sections is different.
    In FIG. 2 shows the electromotive forces X ( , X x , X, and X ,, generated in sections 3-6 of the winding, respectively, when the rotor 1 rotates at a constant speed in the direction of the arrow Г · The output voltage in one phase of the stator winding (Fig. 3) is equal to the sum electromotive forces X ( , X t j X e and X ^ generated in each section of the winding. Electromotive forces (Fig. 2) generated in each part of the winding differ in phase of the pulsating component caused by groove pulsation. However, if these electromotive forces put together then the vibrations will cancel each other out and The phase deviations of the output voltage, which are determined by the groove ripple, will generally decrease, and therefore the ripple of the direct voltage of the synchronous machine will decrease.
    Branch of PPP Patent ”, Uzhgorod, Project 4,
    权利要求:
    Claims (1)
    [1]
    SYNCHRONOUS DC CONTACTLESS TACHOGENERATOR MACHINE, containing a rotor in the form of a four-pole permanent magnet and a stator * in the cavity of which a rotor is installed with a gap relative to it, moreover, on the stator in uniformly distributed over. On the circumference of the grooves of the grooves, a multiphase winding of sections in the form of coils is placed, a torn part is that, with a circuit to increase its accuracy by reducing the output voltage ripple from the tooth harmonics, thirty-three grooves are made on the stator, each phase The Λ winding contains four sections connected in series S, and the step of the coils is eight grooves.
    1 1158055
    类似技术:
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    同族专利:
    公开号 | 公开日
    KR830008177A|1983-11-16|
    EP0060894A4|1985-04-24|
    EP0060894A1|1982-09-29|
    JPS5757264A|1982-04-06|
    WO1982001252A1|1982-04-15|
    JPS6023305B2|1985-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1947269A|1932-12-29|1934-02-13|Gen Electric|Magneto-electric machine|
    FR881738A|1941-05-03|1943-05-06|Anonima B B Soc|Improvements to magnetos with more than eight sparks per revolution for ignition of internal combustion engines|
    JPS3621409B1|1958-12-06|1961-11-08|
    GB913170A|1959-10-09|1962-12-19|Ferranti Ltd|Improvements relating to direct current tachometer generators|
    JPS376360B1|1959-10-28|1962-06-28|
    JPS5237570B2|1972-03-22|1977-09-22|
    DE2330309C3|1973-06-14|1978-04-13|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Circuit arrangement for speed control of a brushless DC motor|
    JPS5071365A|1973-10-24|1975-06-13|
    US4088943A|1977-02-25|1978-05-09|Electro-Craft Corporation|Brushless DC tachometer circuit|
    US4227136A|1978-07-17|1980-10-07|Precise Power Corporation|Variable speed A.C. motor|
    JPS5614951A|1979-07-19|1981-02-13|Fanuc Ltd|Tachometer generator|JPS6341307B2|1982-12-24|1988-08-16|Fanuc Ltd|
    WO1990009698A2|1989-02-08|1990-08-23|Zahnradfabrik Friedrichshafen Ag|Revolving field motor excited by permanent magnets|
    DE4108522C2|1991-03-15|1994-03-17|Grundfos International A S Bje|Device for measuring speed|
    DE4108630C2|1991-03-16|1996-01-25|Gavazzi Carlo Gmbh|Tachometer generator|
    FR2714773B1|1993-12-31|1996-01-26|Renault|Synchronous motor with permanent magnets and electronic commutation.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP13226580A|JPS6023305B2|1980-09-25|1980-09-25|
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