Taut armature reciprocating impulse transducer

    公开(公告)号:AU3408697A

    公开(公告)日:1998-02-10

    申请号:AU3408697

    申请日:1997-06-25

    Applicant: MOTOROLA INC

    Abstract: A taut armature reciprocating impulse transducer (100) includes an electromagnetic driver (24, 26) which effects an alternating electromagnetic field in response to an input signal. An armature (12) includes an upper planar suspension member (14) formed by a first pair of non-linear spring members arranged along a first radial axis (50), and a lower planar suspension member (16) formed by a second pair of non-linear spring members arranged along a second radial axis (52) which is substantially perpendicular to the first radial axis (50). The upper and lower planar suspensions members are coupled to the electromagnetic driver (24, 26) and suspend a magnetic motional mass (18) therebetween. The alternating electromagnetic field alternately moves the magnetic motional mass (18), the movement being transformed through the upper and lower planar suspension members (14, 16) and the electromagnetic driver (24, 26) into motional energy.

    2.
    发明专利
    未知

    公开(公告)号:AT116874T

    公开(公告)日:1995-01-15

    申请号:AT90913033

    申请日:1990-08-03

    Applicant: MOTOROLA INC

    Abstract: An apparatus for effecting a vibrating motion comprises a resonant planar armature, a housing, an electromagnetic device attached to the housing for effecting an alternating electromagnetic field, a magnetic device coupled to the armature and to the electromagnetic field for alternatively moving the armature in a first and a second direction in response to the electromagnetic field. The resonant planar armature comprises a plurality of planar spring members arranged regularly about a central planar region within a planar perimeter region of the armature, and the spring members provide a restoring force normal to a movement of the central region of the armature caused by the alternating electromagnetic field.

    3.
    发明专利
    未知

    公开(公告)号:ES2066219T3

    公开(公告)日:1995-03-01

    申请号:ES90913033

    申请日:1990-08-03

    Applicant: MOTOROLA INC

    Abstract: An apparatus for effecting a vibrating motion comprises a resonant planar armature, a housing, an electromagnetic device attached to the housing for effecting an alternating electromagnetic field, a magnetic device coupled to the armature and to the electromagnetic field for alternatively moving the armature in a first and a second direction in response to the electromagnetic field. The resonant planar armature comprises a plurality of planar spring members arranged regularly about a central planar region within a planar perimeter region of the armature, and the spring members provide a restoring force normal to a movement of the central region of the armature caused by the alternating electromagnetic field.

    SHOCK ISOLATION FOR SELECTIVE CALL RECEIVERS.
    5.
    发明公开
    SHOCK ISOLATION FOR SELECTIVE CALL RECEIVERS. 失效
    SCHOCK-ISOLIERUNGFÜRSELEKTIVRUFEMPFÄNGER。

    公开(公告)号:EP0659315A4

    公开(公告)日:1994-07-06

    申请号:EP92914207

    申请日:1992-03-02

    Applicant: MOTOROLA INC

    CPC classification number: H04B1/086 H04B2001/3894

    Abstract: A shock isolator (30) is provided within the housing (38) of a selective call receiver to substantially increase the natural frequency of vibration of the housing (38) and the printed circuit boards (54, 56) within the housing. The shock isolator (30) is a body of elastomeric material, preferably butyl rubber, which has component receiving apertures (32) molded therein for receiving the components (46, 48, 50) on the printed circuit board while at the same time contacting the printed circuit board. The butyl rubber has a damping of at least 25 % (preferably 50 %) and a Durometer of between 50 and 70 type A (preferably 60).

    Abstract translation: 减震隔离器(30)设置在选呼接收器的壳体(38)内,以大大增加壳体(38)和壳体内的印刷电路板(54,56)的固有振动频率。 防振隔离器(30)是弹性体材料体,优选地为丁基橡胶,其具有模制在其中的部件接收孔(32),用于接收印刷电路板上的部件(46,48,50),同时接触 印刷电路板。 丁基橡胶具有至少25%(优选50%)和50至70型(优选60)的硬度计的阻尼。

    TAUT ARMATURE RECIPROCATING IMPULSE TRANSDUCER
    6.
    发明公开
    TAUT ARMATURE RECIPROCATING IMPULSE TRANSDUCER 失效
    背部和脉浮数转换器,WRAP配件

    公开(公告)号:EP1016289A4

    公开(公告)日:2002-08-14

    申请号:EP97930196

    申请日:1997-06-25

    Applicant: MOTOROLA INC

    CPC classification number: H04R9/06

    Abstract: A taut armature reciprocating impulse transducer (100) includes an electromagnetic driver (24, 26) which effects an alternating electromagnetic field in response to an input signal; an armature (12), including an upper planar suspension member (14) having a radial axis (50) therethrough and a lower planar suspension member (16) having a radial axis (52) therethrough coupled to the electromagnetic driver (24, 26), the radial axis (50) is oriented substantially perpendicular to the radial axis (52); and a magnetic motional mass (18) which is suspended between the upper and lower planar suspension members (14, 16), and which is coupled to the alternating electromagnetic field for alternately moving the magnetic motional mass (18) in response thereto. Movement of the magnetic motional mass (18) is transformed through the upper and lower planar suspension members (14, 16) and the electromagnetic driver (24, 26) into motional energy.

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