SELF-LUBRICATING BEARINGS
    11.
    发明授权
    SELF-LUBRICATING BEARINGS 有权
    SELBSTSCHMIERENDE LAGER

    公开(公告)号:EP1668265B1

    公开(公告)日:2012-05-09

    申请号:EP04768454.3

    申请日:2004-09-13

    申请人: Minebea Co. Ltd.

    IPC分类号: F16C33/20 F16C23/04 F16C33/12

    摘要: A self-lubricating bearing for use in low pressure, high frequency, small amplitude applications and methods of operating and constructing the same, the bearing having a self-lubricating liner (3) and a counterface surface (5) in close sliding contact therewith, the counterface surface (5) having a surface finish of less than 20nm and a hardness of less than in the region of 1OOOVPN.

    摘要翻译: 一种用于低压,高频,小幅度应用的自润滑轴承及其操作和构造方法,所述轴承具有自润滑衬套和与其紧密滑动接触的对置表面,所述对置表面具有表面 完成小于20nm,硬度小于1000 VPN的区域。

    Method of detecting state of synchronization loss in stepping motor
    16.
    发明公开
    Method of detecting state of synchronization loss in stepping motor 有权
    在einem Schrittmotor的Verfahren zum Erfassen des Zustands des Synchronisationsverlusts

    公开(公告)号:EP2110942A2

    公开(公告)日:2009-10-21

    申请号:EP09005045.1

    申请日:2009-04-06

    申请人: MINEBEA Co., Ltd.

    IPC分类号: H02P8/38

    摘要: In a method of detecting synchronization loss in a stepping motor, a means for applying either control current or control voltage to a coil (4) of each phase to thereby drive a stepping motor (1) and a means for individually measuring a back EMF voltage (V) induced at the coil (4) of each phase are employed, wherein application of either the control current or the control voltage at the coil (4) of each phase is halted by turns phase by phase for such a short time period (t) as not to affect rotation of a rotor (3) of the stepping motor (1) at a predetermined timing within one step period (stp) of the rotor (3), the back EMF voltage (V) at the coil (4) is measured during the short time period (t), and the stepping motor (1) is judged to lose synchronization when the measurement result of the back EMF voltage (V) at the coil (4) of at least one phase satisfies a predetermined detection criterion.

    摘要翻译: 在步进电动机中检测同步损耗的方法中,用于将控制电流或控制电压施加到每相的线圈(4)的装置,从而驱动步进电动机(1)和单独测量反电动势电压的装置 (V)在每个相的线圈(4)处感应,其中在每个相的线圈(4)处施加控制电流或控制电压在相当短的时间段内相位停止( t)在转子(3)的一个阶段周期(stp)内的预定定时不影响步进电动机(1)的转子(3)的旋转,线圈(4)的反电动势电压(V) )在短时间段(t)期间被测量,并且当至少一相的线圈(4)处的反电动势电压(V)的测量结果满足预定的时间时,判断步进电机(1)失去同步 检测标准。

    Spread illuminating apparatus of multiple panel type
    17.
    发明公开
    Spread illuminating apparatus of multiple panel type 审中-公开
    具有多个面板的面状照明装置

    公开(公告)号:EP1918768A3

    公开(公告)日:2009-09-30

    申请号:EP07019111.9

    申请日:2007-09-28

    申请人: MINEBEA Co., Ltd.

    IPC分类号: G02F1/13357

    摘要: A spread illuminating apparatus (22) includes a plurality of lighting units (12) which are arranged two dimensionally, and each of which includes light sources (14) and a light conductor plate (16) which has a light inlet surface (16a) having the light sources (14) disposed thereat, an opposite end surface (16b) opposite to the light inlet surface (16a), and a major surface (16c) defined as a light outlet surface for the lighting unit (12), wherein an overhang (24) is formed integrally with the light conductor plate (16) so as to protrude from the opposite end surface (16b), and wherein every two adjacent lighting units (12-1, 12-2) of the plurality of lighting units (12) are jointed to each other such that the light outlet surface side faces of the light sources (14) of the lighting unit (12-1) are covered by the overhang (24), and wherein a light diffusing means (25) is disposed at a side surface of the overhang (24) positioned toward the light outlet surface (16c).

    STEPPING MOTOR
    18.
    发明公开
    STEPPING MOTOR 审中-公开
    SCHRITTMOTOR

    公开(公告)号:EP1693947A4

    公开(公告)日:2009-05-27

    申请号:EP04792271

    申请日:2004-10-12

    申请人: MINEBEA CO LTD

    IPC分类号: H02K37/24 H02K7/06 H02K7/08

    摘要: A stepping motor in which the performance is enhanced by preventing a variation in the axial urging force of a rotary shaft caused by generation of heat from the stator coil of the motor. The stepping motor comprises a rotary shaft having one side provided with a lead screw and the other side to which a rotor magnet is secured. The rotor magnet is rotatably opposed to the inner circumference of the stator. The rotary shaft is supported rotatably at the opposite end parts thereof by bearings. An urging force means is provided on one side of the rotary shaft and a resilient member is contained in a recess provided at the fore end part on one side of the rotary shaft. The urging force means urges the rotary shaft in the axial direction by means of the resilient member through a point contact member interposed between the bearing for supporting the fore end part and the resilient member.

    摘要翻译: 一种步进电机,其中通过防止由电机的定子线圈产生热量而引起的旋转轴的轴向推力的变化来提高性能。 步进电机包括一个旋转轴,该旋转轴的一侧设有导螺杆,另一侧固定有转子磁体。 转子磁体可旋转地与定子的内周相对。 旋转轴在其相对的端部由轴承可旋转地支撑。 在旋转轴的一侧设置推压装置,并且在旋转轴的一侧的前端部设置的凹部中容纳有弹性构件。 推动力装置通过插入在用于支撑前端部分的轴承和弹性部件之间的点接触部件,通过弹性部件沿轴向推动旋转轴。

    Load driving apparatus
    20.
    发明公开
    Load driving apparatus 审中-公开
    Ladeantriebsgerät

    公开(公告)号:EP2034599A2

    公开(公告)日:2009-03-11

    申请号:EP08015706.8

    申请日:2008-09-05

    申请人: MINEBEA Co., Ltd.

    发明人: Masuda, Shigemi

    IPC分类号: H02M5/293

    摘要: A load driving apparatus includes a transformer, a transformer driving circuit for supplying an alternate current signal to a primary side of the transformer, a load connected at a secondary side of the transformer, a dummy load connected at the secondary side of the transformer, a first switching device for switching whether to supply a secondary side signal of the transformer to the load, a second switching device for switching whether to supply the secondary side signal to the dummy load, and a switching control portion for controlling the first and second switching devices such that the supply of the secondary side signal to the dummy load is stopped when the secondary side signal is supplied to the load, and that the supply of the secondary side signal to the load is stopped when the secondary side signal is supplied to the dummy load.

    摘要翻译: 负载驱动装置包括变压器,用于向变压器的初级侧提供交流信号的变压器驱动电路,连接在变压器的次级侧的负载,连接在变压器次级侧的虚拟负载, 用于切换是否将变压器的次级侧信号提供给负载的第一开关装置,用于切换是否将二次侧信号提供给虚拟负载的第二开关装置,以及用于控制第一和第二开关装置的开关控制部分 使得当次级侧信号被提供给负载时,将二次侧信号提供给虚拟负载被停止,并且当次级侧信号被提供给虚拟机时,向负载提供次级侧信号被停止 加载。