ACTIONNEUR ELECTROMAGNETIQUE DE DEMARREUR POUR MOTEUR THERMIQUE
    13.
    发明公开
    ACTIONNEUR ELECTROMAGNETIQUE DE DEMARREUR POUR MOTEUR THERMIQUE 审中-公开
    ELEKTROMAGNETISCHER AKTUATORFÜREINENWÄRMEKRAFTMASCHINENANLASSER

    公开(公告)号:EP3028288A1

    公开(公告)日:2016-06-08

    申请号:EP14790161.5

    申请日:2014-07-31

    发明人: LABBE, Nicolas

    IPC分类号: H01H50/16 H01H51/06 H01H50/20

    摘要: The electromagnetic actuator for a heat engine starter comprises at least one winding (24; 25) for creating a magnetic field and a magnetic circuit cooperating with the winding in order to cause a magnetic flux to circulate therein, the magnetic circuit comprising a yoke (322, 323) and a mobile core (321) that can be moved from an initial position to an end position. The magnetic field of the winding creates a magnetic force that acts on the mobile core in order to move it from the initial position to the end position. The magnetic circuit is arranged so that the derivative of the magnetic permeance of same relative to the position of the mobile core on the journey of same from the initial position to the end position, reaches the maximum value thereof before the mobile core reaches the end position of same. This means that the magnetic force is maximised before the end position, which limits the size of the shock

    摘要翻译: 用于热引擎起动器的电磁致动器包括用于产生磁场的至少一个绕组(24; 25)和与绕组配合的磁路,以使磁通量在其中循环,该磁路包括磁轭(322 ,323)和可以从初始位置移动到结束位置的移动芯(321)。 绕组的磁场产生作用在移动芯上的磁力,以将其从初始位置移动到最终位置。 磁路布置成使得在移动芯到达终点位置之前,相对于起始位置到结束位置的行程的相对于移动铁芯的位置的磁导数的导数达到其最大值 相同。 这意味着在结束位置之前磁力最大化,这限制了冲击的大小

    MACHINE ELECTRIQUE TOURNANTE, NOTAMMENT DEMARREUR DE VEHICULE AUTOMOBILE
    16.
    发明公开
    MACHINE ELECTRIQUE TOURNANTE, NOTAMMENT DEMARREUR DE VEHICULE AUTOMOBILE 审中-公开
    电气回转机械,尤其是起动器用于汽车AN

    公开(公告)号:EP2286504A2

    公开(公告)日:2011-02-23

    申请号:EP09761926.6

    申请日:2009-06-08

    IPC分类号: H02K23/04

    CPC分类号: H02K23/04 H02K1/17

    摘要: The invention relates to a direct-current electric rotary machine, in particular a starter (1) for an automobile, wherein said machine comprises: a magnetised structure including at least a first type of sector (41; 42) having a magnetisation vector defining, with a radial direction, an angle that varies when moving along a circumference of the magnetised structure, the magnetisation in that sector having, at least locally, a direction different from the radial (F1) and orthoradial (F2) directions of the stator, the magnetic induction field in the air gap associated with this sector of the magnetised structure and the magnetic reaction of the rotor armature having normal components of opposite signs, the magnetic induction field generated by this sector of the magnetised structure being selected so as to have a profile bringing in an induction contribution by concentration of the magnetic flow at the locations where the effects of the armature magnetic reaction are opposed to those of the magnetised structure in order to at least attenuate locally an adverse effect of the armature magnetic reaction, wherein the magnetised structure includes at least one sector (43; 44) of a second type having a magnetisation vector defining, with the stator radial direction, a substantially constant angle when moving along a circumference of the magnetised structure, the magnetic induction field in the air gap associated with this sector of the magnetised structure and the armature magnetic reaction having normal components of the same sign.