• 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:
    Disclosed is a direct current motor which comprises an armature, provided with armature windings thereon, and a plurality of field magnet devices, each of the field magnet devices being divided into three parts along the rotational direction of the armature. The parts are a main pole, which consists of a permanent magnet or an electromagnet activated by field windings wound thereon and which is disposed at a central portion of the field magnet device, and a pair of auxiliary poles, each of which consists of a permanent magnet. One of the auxiliary poles is disposed at one end of the main pole and the other auxiliary pole is disposed at the other end of the main pole. The permeability of the auxiliary poles is selected to be smaller than that of the main pole, and the polarity of the auxiliary poles is selected to be the same as that of the main pole. Since the permeability of the auxiliary poles is small, magnetic flux generated by the armature current is very small at a position adjacent to each end of the field magnet devices and is substantially equal to zero at a central position adjacent to two field magnet devices (on the geometric neutral axis). Consequently, the displacement of the electrically neutral axis caused by the armature reaction can be prevented and, as a result, degradation of the commutating characteristics does not occur.
    公开号:SU812195A3
    申请号:SU772539653
    申请日:1977-11-10
    公开日:1981-03-07
    发明作者:Козаи Есинори；Ояма Сигеаки
    申请人:Фудзицу Фанук Лимитед (Фирма)；
    IPC主号:
    专利说明:

    one
    The invention relates to direct current motors, in particular to direct current motors, the revolutions of which can vary over a wide range.
    It is known that the windings of the direct current core, which is located in the magnetic field created by stationary magnets, are fed by electric current, as a result of which the core rotates due to the combined effect of the current of the core and the magnetic field of the stationary magnets. The direction of the current that is supplied to the core is determined by the direction of rotation of the core, which is provided by a conventional brush collector.
    When current is applied to the core of the DC motor, the latter generates a magnetic field around the core. The magnetic fields generated by the current of the core interact with the magnetic field created by stationary magnets, as a result of which so-called reactions occur. cor. Such reactions of the core are, for example, the displacement of an electrically neutral axis to a decrease in the magnetic field.
    flow, uneven voltage on the collector and the presence of local high voltage on it.
    When shifting electrically neutron. The magnetic axis shifts the magnetic flux to the geometrical axis. When the magnetic flux interacts with the windings, a voltage is induced in them.
    0 Because of this, when the collector brush is located on a geometrically neutral axis, the induced voltage is short-circuited and a spark arises. As a result, a high electric current to the brush is high and the switching characteristics of the engine are noticeably deteriorated.
    To avoid deterioration of switching characteristics, an additional pole is usually used, which is located between two adjacent stationary magnets. However., In some cases, when according to the characteristics
    As the motor 5 does not allow magnetic flux leakage through the extension pole, it is very difficult to arrange the extension pole in such a way that the commutation characteristics of the motor do not deteriorate.
    Ievests also have direct current motors containing measles from the windings and an excitation system of permanent magnets, made of three parts with UJ poles
    A disadvantage of the known motors are poor switching conditions. The aim of the invention is to improve co1 utacin.
    This goal is achieved by the fact that the extreme parts of the poles are made of permanent magnets, the magnetic permeability of which is less than the magnetic permeability of the middle part of the strip, and also by the fact that the middle part of the pole is made in the form of an electromagnet with excitation windings.
    FIG. Figure 1 shows the scheme of the proposed DC motor; Fig. 2 is a curve of the change in the magnetic flux created by the magnets and old core f in Fig. 3 is a diagram of another engine variant; FIG. 4 - DC motor in section; in fig. 5 is a section A-A of FIG. four.
    As shown in FIG. 1, the excitation system consists of three parts, located along the direction of the core, which are the main pole 1, located in the center, and additional poles 2 to 3, which are located on both sides of the pole 1. The main pole 1 is a core of sheet magnetic material, for example, from sheets of silicon steel, on which niyutana winding 4.
    In another embodiment (FIG. 3), the main pole 1 is made in the form of a permanent magnet made of a magnetic magnetic material such as Almico, Alcaneax or Dersttt. In the case of an excitation winding 4 (Fig. 1 is absent. Each of the additional poles 2 or 3 is a permanent magnet made by ceramics, such as ferrite, and the magnetic permeability of the WTO magnet is less than that of the main pole 1, and In addition, this magnet has a large N. demagnetizing force. The polarity of both additional pole 1B 2 and 3 is the same as that of the main pole 1.
     When measles is not loaded, i.e. when the current in M «yutka 5 core is zero, the magnetic fluxes create | The sixth pole axial poles 1 and the additional pole poles 2 and 3 are evenly distributed along the kykkyd pole - see dotted line A in FIG. 2. The curve of the distribution of the magnetic flux created by the current crust flowing through its windings 5 is depicted by an inclined line intersecting the abscissa axis at the center of the main pole 1. Since the magnetic permeability of the additional pogok 2 and 3 is less than the magnetic permeability of the main pole 1, then the magnetic flux created by TOXY4 core does not penetrate in addition the poles 2 and 3, therefore the distribution of the magnetic flux created by the current
    The core will have the form of a dash-dotted line B, intersecting the abscissa axis at point D located in the center between two excitation systems.
    When a current is passed through
    5 of winding 5, the magnetic flux distribution curve, which is the result of 4 interactions of magnetic fluxes created by the main pole 1 (dotted line A) and additional polarities 2 and 3 (dash-dotted line B), will have the form of a solid line C. that line C characterizes the distribution of the magnetic flux, taking into account the magnetic flux created by the current of the core.
    The curve of the distribution of the magnetic flux C passes through zero at a point that coincides with the geometric
    Q neutral axis, due to the action of the additional poles 2 and 3. Therefore, the axis of the DC motor proposed in the invention is electrically neutral.
     lies almost on the geometrically neutral axis, so that such an engine does not deteriorate the lc "lutane characteristics." FIG. 4 and 5 show the proposed in the invention of the four-pole
    0 dc motor.
    As shown in FIG. 5, the main pole 1, prepared from a package of sheets of silicon steel, is attached to the collar 6 with screws 7. Two additional
    5 poles 2 and 3, which are made of ferrite, the magnetic permeability of which is less than that of the main pole 1, and which have a large demagnetization force H, are attached
    0 to the rom 6 using glue at the ends of the main pole 1. On the main pole 1 is wound 4, located between the main and additional poles. How while ,, zano on fkg. 4, the measles 8 is attached to the vlu 9 rotating in the bearings 10 and 11 and the windings 5 are wound on it. O (H4OTK core is connected to the collector 12 mounted on the shaft 9. Brush 13 is located on the electrically neutral axis of the body (Fig. 4 ), which is pressed against the collector by a spring 14. Discharge is created in the inner cavity 15 of the shaft 9, and this cavity is filled with a small amount of water 45. The shaft 9 is made in
    the form of a hollow heat pipe. Elements of the lattice radiator 16 are attached to the rear end of the shaft 9. With this design, the heat extracted by the bark 8 is transmitted through a water pipe formed by the internal cavity 15 of the activating shaft 9 to the radiator 1B, which leads it to the atmosphere. The cooling fan 17 and the air intake 18 ensure a more efficient operation of the radio. ra 16.
    权利要求:
    Claims (2)
    [1]
    1. A direct current motor containing measles with windings and a permanent magnet excitation system, made with three poles splitted, characterized in that, in order to improve switching, the polar parts of the poles are made of permanent magnets, the magnetic permeability of which is less magnetic permeability of the middle part of the pole.
    [2]
    2. The engine according to claim 1, characterized in that the middle part
    The 0 poles are made in the form of an electromagnet with excitation windings.
    Sources of information taken into account in the examination
    1. USSR author's certificate
    5 63313, cl. H 02 K 23/04, 1944.
    ppp
    J
    rH
    ® ® ® & 0 (& ®v ®0 Phage
    类似技术:
    公开号 | 公开日 | 专利标题
    SU812195A3|1981-03-07|Direct current engine
    EP0544310B1|1996-02-07|Permanent magnet type dynamoelectric machine rotor
    JP2575628B2|1997-01-29|Brushless motor
    EP1198875B1|2005-11-02|Permanent magnet synchronous motor
    US4405873A|1983-09-20|Rotor for a line-start permanent-magnet motor
    US5132581A|1992-07-21|AC generator with annular permanent magnets
    JP2594922B2|1997-03-26|Operating method of permanent magnet field type motor
    US4719378A|1988-01-12|Brushless motor having permanent magnet rotor and salient pole stator
    US5670838A|1997-09-23|Electrical machines
    KR100979899B1|2010-09-06|Dynamo electric machine
    US4029977A|1977-06-14|Rotary stepper motor and method of operation
    JPH066964A|1994-01-14|Single-phase electromagnetic rotation driving apparatus having 60-120degree stroke
    JP2006166688A|2006-06-22|Permanent magnet motor
    JPH08275419A|1996-10-18|Rotor of permanent magnet type rotary machine
    JP3286542B2|2002-05-27|Reluctance motor and electric vehicle using the same
    JPH1023690A|1998-01-23|Motor
    JPH09266646A|1997-10-07|Brushless dc motor
    JPH09308198A|1997-11-28|Permanent magnet motor
    JPH08126279A|1996-05-17|Brushless dc motor
    JP2001028851A|2001-01-30|Motor and starter generator
    JP3467963B2|2003-11-17|Permanent magnet field type rotating electric machine
    JPH10191585A|1998-07-21|Motor buried with permanent magnet
    JPH11196556A|1999-07-21|Magnet motor
    JPH0767303A|1995-03-10|Induction motor
    JPH10126990A|1998-05-15|Concentrated winding dynamo-electric machine
    同族专利:
    公开号 | 公开日
    FR2371082B1|1982-02-05|
    CH621894A5|1981-02-27|
    DE2749999A1|1978-05-11|
    US4217513A|1980-08-12|
    FR2371082A1|1978-06-09|
    DE2749999B2|1980-02-14|
    GB1540983A|1979-02-21|
    JPS5367015U|1978-06-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1739137A|1928-03-26|1929-12-10|Frazer W Gay|Heat-transfer means for rotating electrical machinery|
    US2330121A|1940-10-04|1943-09-21|Jack & Heintz Inc|Motor cooling system|
    US2474648A|1944-02-24|1949-06-28|English Electric Co Ltd|Dynamoelectric machine|
    GB893611A|1959-11-25|1962-04-11|Lucas Industries Ltd|Dynamo electric machines|
    US3214620A|1962-12-28|1965-10-26|Westinghouse Electric Corp|Permanent magnet motor and flux adjusting apparatus for use therein|
    FR1407904A|1964-07-17|1965-08-06|Electric motor with permanent magnets with several rotation speeds|
    US3566251A|1968-05-06|1971-02-23|Westinghouse Electric Corp|Series field for permanent magnet machine|
    GB1277876A|1968-08-16|1972-06-14|Lucas Industries Ltd|Direct current dynamo electric machines|
    DE1763876A1|1968-08-28|1972-02-03|Siemens Ag|Permanently excited electrical machine|
    US3521100A|1969-03-26|1970-07-21|Baldor Electric Co|D.c. motor with cast main yoke and laminated interpole yoke and method of forming|
    DE2019956A1|1970-04-24|1971-11-04|Siemens Ag|Arrangement for cooling rotating bodies|
    JPS4835721A|1971-09-09|1973-05-26|
    JPS4839906A|1971-09-22|1973-06-12|
    DE2310948C3|1973-03-05|1978-12-14|Siemens Ag, 1000 Berlin Und 8000 Muenchen|Stand for machines with permanent magnet excitation|
    FR2267649B1|1974-04-12|1976-12-17|Orega Electro Mecanique|
    DE2460630B2|1974-12-20|1976-09-30|Siemens AG, 1000 Berlin und 8000 München|PERMANENT MAGNETIC DIRECT CURRENT MACHINE|
    US3984711A|1975-04-07|1976-10-05|Warner Electric Brake & Clutch Company|Variable reluctance step motor with permanent magnets|
    DE2527461C2|1975-06-20|1987-01-02|Robert Bosch Gmbh, 7000 Stuttgart|Process for the production of anisotropic segment magnets for electrical machines|
    US4091300A|1975-08-30|1978-05-23|Lucas Industries Limited|Permanent magnet electrical machines|
    US4041338A|1975-11-20|1977-08-09|General Motors Corporation|Direct current dynamoelectric machine commutating pole assembly|FR2511209B1|1981-08-06|1985-08-16|Cem Comp Electro Mec|DIRECT CURRENT, CYLINDRICAL GAP AND PERMANENTLY DRIVEN MACHINE|
    US4406983A|1981-12-29|1983-09-27|International Business Machines Corporation|Rotational magnetic transducer|
    FR2559321B1|1984-02-06|1986-11-21|Applic Mach Motrices|LOW-VOLTAGE ELECTRIC DRIVE DEVICE FOR A HIGH-INERTIA ROTATING MASS AND MOTOR BEING PART OF THIS DEVICE|
    US4712028A|1984-05-21|1987-12-08|Sigma Instruments, Inc.|Magnetically assisted stepping motor|
    US4713570A|1986-06-04|1987-12-15|Pacific Scientific Co.|Magnetically enhanced variable reluctance motor systems|
    JP2907336B2|1987-02-17|1999-06-21|株式会社東芝|Rectifier compensator for DC machine|
    DE3842807C2|1988-01-09|1990-02-22|Hans Hermann 2245 Tellingstedt De Rottmerhusen|
    JPH0787685B2|1988-04-25|1995-09-20|株式会社日立製作所|Permanent magnet field type DC rotating electric machine|
    US4980593A|1989-03-02|1990-12-25|The Balbec Corporation|Direct current dynamoelectric machines utilizing high-strength permanent magnets|
    IT1243810B|1990-10-08|1994-06-28|Gaetano Monaco|DIRECT CURRENT MOTOR WITH INDEPENDENT EXCITATION, POWERED BY ALTERNATING CURRENT THROUGH A HIGH PERFORMANCE ELECTRONIC RECTIFIER CIRCUIT|
    US5672925A|1992-08-06|1997-09-30|Electric Power Research Institute, Inc.|Doubly salient variable reluctance machine with stationary permanent magnets or auxiliary field windings|
    GB9506461D0|1995-03-29|1995-05-17|Switched Reluctance Drives Ltd|Single-phase variable reluctance motor having permanent magnets bedded within a phase winding|
    US5585680A|1995-04-12|1996-12-17|Tsoffka; Vladimir|Electromagnetic stepper motor|
    KR100208483B1|1996-01-27|1999-07-15|이종수|Cylinderical type linear motor|
    DE102005008282A1|2005-02-23|2006-08-24|Minebea Co., Ltd.|Brushless DC motor, has a number of radially arranged stator forgings|
    NO324241B1|2006-02-28|2007-09-17|Smartmotor As|Device by electric machine|
    US8134260B2|2006-06-19|2012-03-13|Hpev, Inc.|Electric motor with heat pipes|
    US8283818B2|2006-06-19|2012-10-09|Hpev, Inc.|Electric motor with heat pipes|
    US7569955B2|2006-06-19|2009-08-04|Thermal Motor Innovations, Llc|Electric motor with heat pipes|
    US8148858B2|2008-08-06|2012-04-03|Hpev, Inc.|Totally enclosed heat pipe cooled motor|
    FR2941106B1|2009-01-15|2017-01-20|Valeo Equip Electr Moteur|ROTATING ELECTRICAL MACHINE WITH HIGHLIGHTS|
    FR2945163B1|2009-04-29|2017-06-23|Valeo Equip Electr Moteur|ROTATING ELECTRICAL MACHINE WITH MAGNETIC REACTION COMPENSATION COMPENSATION|
    CN102237733B|2010-04-23|2015-03-25|德昌电机有限公司|Motor|
    CN102237734B|2010-04-23|2015-08-12|德昌电机有限公司|A kind of motor|
    CN102247101B|2010-05-21|2015-07-22|德昌电机有限公司|Kitchen appliance|
    US20120280580A1|2011-05-04|2012-11-08|Aurora Office Equipment Co., Ltd. Shanghai|Cooled fractional-horsepower motor|
    US9413208B2|2013-01-08|2016-08-09|Hamilton Sundstrand Corporation|Enhanced cooling of enclosed air cooled high power motors|
    JP6093592B2|2013-02-22|2017-03-08|株式会社Ihi|Magnetic wave gear device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP15074376U|JPS5367015U|1976-11-10|1976-11-10|
    [返回顶部]