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    • 6. 发明授权
    • Brushless motor
    • 无刷电机
    • US06297572B1
    • 2001-10-02
    • US09499352
    • 2000-02-08
    • Hideki SunagaTakeshi ObaShigenori Ohira
    • Hideki SunagaTakeshi ObaShigenori Ohira
    • H02K1100
    • H02K11/33F04D25/0613H02K5/225
    • A brushless motor comprising a housing; a drive shaft rotatably held by the housing; a stator disposed on said housing and having a plurality of coils which are arranged to surround the drive shaft; a yoke secured to the drive shaft to rotate therewith; a plurality of magnets that are held by the yoke in a manner to surround the stator keeping a given space therebetween; an electric parts protecting case on which the housing is mounted; a drive circuit installed in the case for energizing the coils of the stator, the drive circuit including a plurality of switching elements each changing the direction of electric current flowing in the corresponding coil of the stator; a control circuit installed in the case for controlling operation of the switching elements to adjust a rotation speed of the drive shaft; electric connectors for connecting the drive and control circuits; and a heat sink held by the case, the heat sink including a hidden portion exposed to an interior of the case and a plurality of heat radiation fins exposed to the outside of the case, the hidden portion having the switching elements attached thereto. The drive circuit and control circuit are arranged on respective substitutes which are arranged at different positions in the electric parts protecting case. The drive and control circuits are connected through electric connectors.
    • 1.一种无刷电动机,包括壳体; 由所述壳体可旋转地保持的驱动轴; 定子,其设置在所述壳体上并且具有多个线圈,所述多个线圈被布置成围绕所述驱动轴; 固定到驱动轴以与其一起旋转的轭; 多个磁体,其以围绕定子的方式由磁轭保持,其间保持给定的空间; 安装壳体的电气部件保护壳体; 驱动电路,其安装在用于对定子的线圈通电的情况下,所述驱动电路包括多个开关元件,每个开关元件改变在定子的相应线圈中流动的电流的方向; 安装在所述壳体中用于控制所述开关元件的操作以调节所述驱动轴的转速的控制电路; 用于连接驱动和控制电路的电连接器; 以及由所述壳体保持的散热器,所述散热器包括暴露于所述壳体内部的隐藏部分和暴露于所述壳体的外部的多个散热片,所述隐藏部分具有安装有所述开关元件。 驱动电路和控制电路布置在电气部件保护壳体中的布置在不同位置的各个替代物上。 驱动和控制电路通过电气连接器连接。
    • 7. 发明授权
    • Non-contacting position detecting apparatus
    • 非接触式位置检测装置
    • US5430547A
    • 1995-07-04
    • US14677
    • 1993-02-08
    • Kiyoshi TakagiToshio KuriharaShoichi KuwahataKazuo OhomoriAtsumi ToyamaTakeshi Oba
    • Kiyoshi TakagiToshio KuriharaShoichi KuwahataKazuo OhomoriAtsumi ToyamaTakeshi Oba
    • G01B11/00G01B11/24G01B11/14
    • G01B11/005G01B11/007
    • A non-contacting position detecting apparatus includes a laser unit having a light emitting portion and a light receiving portion for irradiating laser light upon a detection point of a subject for measurement and receiving laser light reflected from the detection point to recognize the distance to the detection point. An arm is capable of moving the laser unit in the direction of at least one axis of a rectangular coordinate system. A coordinate detecting member is provided for detecting coordinates of the arm. Coordinates of the detection point are recognized in accordance with the coordinates of the arm when the positional relationship between the detection point and the laser unit reaches a predetermined relationship. The laser unit includes a needle-like indicating member for indicating the crossing point between extension lines of an optic axis of laser light radiated from the light emitting portion and an optic axis of laser light received by the light receiving portion when the detection point and the laser unit reach the predetermined positional relationship.
    • 非接触位置检测装置包括具有发光部分的激光单元和用于将激光照射在被测定物的检测点上并用于接收从检测点反射的激光的光接收部分,以识别到检测距离 点。 臂能够沿着直角坐标系的至少一个轴的方向移动激光单元。 坐标检测构件用于检测臂的坐标。 当检测点和激光单元之间的位置关系达到预定关系时,根据臂的坐标识别检测点的坐标。 激光单元包括针状指示构件,用于指示从发光部分发射的激光的光轴的延伸线与由光接收部分接收的激光的光轴之间的交叉点,当检测点和 激光单元达到预定的位置关系。
    • 9. 发明授权
    • Method for forming compacts
    • 成型方法
    • US6080358A
    • 2000-06-27
    • US215959
    • 1998-12-18
    • Takeshi ObaYoshimi Sugaya
    • Takeshi ObaYoshimi Sugaya
    • B22F5/10B29C43/02B30B11/02B22F3/12
    • B29C43/027B22F5/10B30B11/027B29K2105/251B29K2105/253
    • There is disclosed a method for forming compacts having a hole extending along a direction crossing the compressing direction. In the method, a powder or a pre-compressed compact and a core for forming a hole are assembled in a cavity. The core and a die are set in a condition that the core can move in the compressing direction. The punch compresses the powder and forms a compact. The core does not engage with the die, whereby the core is not exerted with load. Therefore, the method does not need control of compressing for avoiding exertion of load on the core, and can prevent transformation or break of the core. The compact in which the core is inserted is drawn out from the die, so that damages such as break or crumble of the compact is prevented in drawing out.
    • 公开了一种用于形成具有沿着与压缩方向交叉的方向延伸的孔的压块的方法。 在该方法中,在空腔中组装粉末或预压缩压块和用于形成孔的芯。 芯部和模具设置成芯部能够沿压缩方向移动的状态。 冲头压制粉末并形成紧凑型。 芯不与模具接合,由此芯体不承受负载。 因此,该方法不需要压缩控制,以避免在核心上的负载的使用,并且可以防止芯的变换或断裂。 将芯体插入其中的压块从模具中拉出,从而防止压块的破损或破碎等损坏。