Brushless d.c. motor and switching device for use in such a d.c. motor
    3.
    发明公开
    Brushless d.c. motor and switching device for use in such a d.c. motor 失效
    的无刷直流电动机和开关装置用于以这样一种直流电动机使用。

    公开(公告)号:EP0271125A1

    公开(公告)日:1988-06-15

    申请号:EP87202143.1

    申请日:1987-11-05

    IPC分类号: H02P6/02

    CPC分类号: H02P6/14

    摘要: A multi phase brushless d.c. motor comprises a permanent-magnet rotor (1) and a stator (2) with stator coils (16, ..., 21) arranged between three power lines (A, B, C). For the purpose of commutation the motor is provided with switching devices (22A, 22B, 22C) for the cyclic disconnection and connection of the power-supply lines (A, B, C) of the motor to a d.c. power source (25). Each switching device (22) comprises a section (42) which is controlled by the rotor-magnet field for deriving the disconnection instants and a section (43) for deriving the connection instants from the voltage change which is produced on the power-supply line connected to the switching device as a result of another power-supply line being disconnected.

    摘要翻译: 多相无刷直流 电机包括永磁体转子(1)和定子(2)的定子线圈(16,...,21)三条电力线之间设置(A,B,C)。 换向的目的,马达设置有开关装置(22A,22B,22C),用于循环断开和电动机的电源线(A,B,C)连接到直流的连接 电源(25)。 每个开关装置(22)包括由所述转子磁场用于导出断开瞬间与一个部分(43),用于从所述电压变化导出的连接时刻,其上的电源线产生的所有控制的部分(42)的所有 连接到开关器件作为另一电源线的结果被断开。

    Procédé pour alimenter un moteur polyphasé
    4.
    发明公开
    Procédé pour alimenter un moteur polyphasé 审中-公开
    一种用于向多相电动机供电的方法

    公开(公告)号:EP1107445A1

    公开(公告)日:2001-06-13

    申请号:EP00204221.6

    申请日:2000-11-28

    IPC分类号: H02P6/08

    CPC分类号: H02P6/085

    摘要: La présente invention concerne un procédé pour alimenter un moteur polyphasé au moyen d'une pluralité d'enroulements (E1, E2, E3), chacun étant destiné à être excité au moyen d'un signal de commande (I1, I2, I3).
    Le procédé selon l'invention inclut les étapes suivantes :

    . identification de celui des signaux de commande qui a la plus grande valeur absolue, et
    . connexion à une borne de référence de potentiel (VCC ou GND) de l'enroulement correspondant.

    L'invention permet de réduire les pertes dues aux commutations dans les étages de puissance alimentant les enroulements, et d'augmenter le rendement du dispositif d'alimentation du moteur.
    Application : Commande de moteurs de disques durs.

    Self-starting brushless D.C. motor
    5.
    发明公开
    Self-starting brushless D.C. motor 失效
    SelbststartenderbürstenloserGleichstrommotor。

    公开(公告)号:EP0072597A2

    公开(公告)日:1983-02-23

    申请号:EP82201013.8

    申请日:1982-08-12

    IPC分类号: H02P1/16 H02K29/08 H02P6/02

    CPC分类号: H02P6/20 H02K29/08

    摘要: A motor is self-starting using only one magneto-sensitive element because the motor is of a two-phase type and is provided with a detection device which detects towards which of the two phases the rotor is mainly directed. A presetting circuit compares the detected rotor position with the state of an energizing circuit in order to set this circuit so that the energizing circuit energizes the stator phases for said specific rotor position in such a way that starting of the motor is guaranteed, although initially with an undefined direction of rotation. By presetting the commutating direction of the energizing circuit the rotor subsequently locks the field which rotates in the correct direction if it has started in the incorrect direction.

    摘要翻译: 电动机仅使用一个磁敏元件自启动,因为电动机是两相类型的,并且设置有检测装置,该检测装置检测转子主要指向哪两个相。 预置电路将检测到的转子位置与通电电路的状态进行比较,以便设置该电路,使得通电电路为所述特定转子位置激励定子相,使得保证马达的启动,尽管最初与 一个未定义的旋转方向。 通过预置通电电路的换向方向,转子随后按正确的方向锁定正确方向旋转的磁场。