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    • 72. 发明专利
    • Motor drive device, sheet transport device, and image forming device
    • 电机驱动装置,片材运输装置和图像形成装置
    • JP2013099056A
    • 2013-05-20
    • JP2011238183
    • 2011-10-31
    • Ricoh Co Ltd株式会社リコー
    • YOSHIMIZU HIDEKIMURATA TAKUYA
    • H02P6/16H02K29/08H02K29/10H02P6/24
    • PROBLEM TO BE SOLVED: To freely adjust the speed of a driven body by using a DC brushless motor as a drive source, as well as restrain the motor rotation from becoming instable due to inclusion of noise into a rotation sensing signal and also restrain the speed of a first transport roller 16a from being destabilized by a load fluctuation.SOLUTION: In order for the excitation coil switchover timing of a transport motor 210 consisting of a DC brushless motor to be grasped by a driver circuit 212, separately from a hall element 217 to detect a rotation amount of the transport motor 210, a motor encoder 211 to detect the rotation amount with higher accuracy than the hall element 217 is incorporated in the transport motor 210, and also the driver circuit 212 is incorporated in the transport motor 210. In a motor control circuit 200, a speed adjustment process is executed in such a way that the revolution speed of the transport motor 210 is adjusted by adjusting the amount of an excitation voltage supplied from the driver circuit 212 to the coil is adjusted on the basis of the result of detection by the motor encoder 211.
    • 要解决的问题:通过使用DC无刷电动机作为驱动源来自由地调节从动体的速度,并且由于将噪声包含在旋转感测信号中而抑制电动机旋转变得不稳定,并且还 抑制第一输送辊16a的速度由于载荷波动而不稳定。 解决方案:为了使由直流无刷电动机组成的输送电动机210的励磁线圈切换定时由驱动电路212与霍尔元件217分离以检测输送电动机210的旋转量, 用于检测高于霍尔元件217的精度的旋转量的电动机编码器211被结合在传送电动机210中,并且驱动电路212也被结合在传送电动机210中。在电动机控制电路200中,调速过程 以通过根据电动机编码器211的检测结果来调整从驱动电路212向线圈供给的激励电压的量来调整输送电动机210的转速的方式进行。 版权所有(C)2013,JPO&INPIT
    • 75. 发明专利
    • Electric motor
    • 电动马达
    • JP2013059166A
    • 2013-03-28
    • JP2011195046
    • 2011-09-07
    • Jtekt Corp株式会社ジェイテクト
    • SEGAWA MASAYA
    • H02K29/08G01D5/244H02K11/00
    • PROBLEM TO BE SOLVED: To provide an electric motor that allows suppression of incorporation of noise into an output signal from a rotation angle sensor, between the rotation angle sensor and a signal processing circuit.SOLUTION: A sensor circuit including a rotation angle sensor 11, a signal processing circuit 12, a thermoelectric conversion element 13, a charging circuit 14, and a secondary battery 15 is provided in a motor case 1a. The rotation angle sensor 11 is composed of a plurality of hall elements 11a and 11b. The signal processing circuit 12 includes amplifier circuits 12a and 12b amplifying output signals from the hall elements 11a and 11b. The thermoelectric conversion element 13 converts heat generated by an electric motor 1 into electric power. The charging circuit 14 boosts an output voltage Vt from the thermoelectric conversion element 13 to a voltage capable of charging the secondary battery 15 and charges the secondary battery 15 by using the boosted voltage. The secondary battery 15 supplies power to the signal processing circuit 12.
    • 要解决的问题:提供一种电动机,其允许抑制在旋转角度传感器和信号处理电路之间的旋转角度传感器的输出信号中引入噪声。 解决方案:在马达壳体1a中设置有包括旋转角度传感器11,信号处理电路12,热电转换元件13,充电电路14和二次电池15的传感器电路。 旋转角度传感器11由多个霍尔元件11a,11b构成。 信号处理电路12包括放大电路12a和12b,放大来自霍尔元件11a和11b的输出信号。 热电转换元件13将由电动机1产生的热量转换成电力。 充电电路14将来自热电转换元件13的输出电压Vt升压到能够对二次电池15充电的电压,并且通过使用升压电压对二次电池15充电。 二次电池15向信号处理电路12供电。版权所有:(C)2013,JPO&INPIT
    • 76. 发明专利
    • Electric power tool having dc brushless motor
    • 具有直流无刷电机的电动工具
    • JP2013042659A
    • 2013-02-28
    • JP2012251238
    • 2012-11-15
    • Makita Corp株式会社マキタ
    • OGINO KAZUTOSHI
    • H02K29/08H02K11/00
    • PROBLEM TO BE SOLVED: To provide a structure for fitting a sensor base substrate to an end face of a stator such that the sensor base substrate can be fitted without shaking in a substrate thickness direction even if the substrate thickness is uneven, since, in conventional structure fitted by an engaging claw, there is a problem that the sensor base substrate may shake in a substrate thickness direction if the substrate thickness is uneven in a fitted state.SOLUTION: In a structure for fitting a sensor base substrate, elastic force is imparted to an engaging arm portion 32e and an engaging face 32b of an engaging pawl 32a is elastically pressed against a circumferential edge of the sensor base substrate 30 while inclining, thus the sensor base substrate 30 is pressed to eliminate shaking.
    • 要解决的问题:为了提供一种用于将传感器基底安装到定子的端面的结构,使得即使基板厚度不均匀,传感器基底也可以在基板厚度方向上摇动而安装,因为 在由接合爪装配的常规结构中,如果基板厚度在嵌合状态下不均匀,则传感器基板可能在基板厚度方向上振动的问题。 解决方案:在用于安装传感器基底的结构中,向接合臂部32e施加弹性力,并且接合爪32a的接合面32b被弹性地压靠在传感器基底30的周向边缘上,同时倾斜 因此传感器基底30被按压以消除抖动。 版权所有(C)2013,JPO&INPIT
    • 78. 发明专利
    • Motor and ventilating fan
    • 电动和通风扇
    • JP2012253846A
    • 2012-12-20
    • JP2011122542
    • 2011-05-31
    • Mitsubishi Electric Corp三菱電機株式会社
    • OGAWA RYOHEIWAKITA KAKUJIOKADA JUNJIISOKAWA KOICHIUKAI SATOSHI
    • H02K5/173H02K5/06H02K5/08H02K7/14H02K11/00H02K29/08
    • PROBLEM TO BE SOLVED: To provide a motor that prevents a decrease in precision of detecting the position of a rotor so as to prevent a decrease in efficiency and abnormal sounds.SOLUTION: A motor 31 includes: a stator 2; a frame 1 that houses the stator 2 thereinside; a rotor 3b that is arranged on an inner side of the stator 2 and that has an annular shape; a shaft 3a that is connected to the rotor 3b; a resin bracket 5 that has a shaft holding portion 5e erected around an outer perimeter of the shaft 3a; a bearing 4 that supports the shaft 3a rotatably; and a metal housing 8 that is provided on a shaft side of the shaft holding portion 5e. The shaft holding portion 5e holds the bearing 4 through the metal housing 8.
    • 要解决的问题:提供一种防止检测转子位置的精度降低的电动机,以防止效率和异常声音的降低。 电动机31包括:定子2; 一个容纳定子2的框架1; 转子3b,其布置在定子2的内侧并且具有环形形状; 与转子3b连接的轴3a; 树脂支架5,其具有围绕轴3a的外周竖立的轴保持部5e; 可转动地支承轴3a的轴承4; 以及设置在轴保持部5e的轴侧的金属壳体8。 轴保持部分5e通过金属壳体8保持轴承4.版权所有:(C)2013,JPO&INPIT
    • 80. 发明专利
    • Steering device for vehicle
    • 车辆转向装置
    • JP2012153163A
    • 2012-08-16
    • JP2011011145
    • 2011-01-21
    • Jtekt Corp株式会社ジェイテクト
    • NAKAI MOTOOTANI NAOKI
    • B62D5/04H02K29/08
    • PROBLEM TO BE SOLVED: To provide a steering device for a vehicle, which can be made small-sized with a simple structure and in which the deterioration of the performance of a rotation angle sensor can be prevented.SOLUTION: An ECU 12 is arranged between an electric motor 18 and a speed reduction mechanism 19. The ECU 12 includes a rotation angle sensor 55 for detecting the rotation angle of the electric motor 18. The rotation angle sensor 55 includes a detection magnet 56 rotating accompanying the rotation of the electric motor 18 and a magnetoelectric transducer 57 installed in a control substrate 67 of the ECU 12. A cover 68 held by a first housing prevents a space S1, between the opposed surfaces 56a, 57a of the detection magnet 56 and the magnetoelectric transducer 57, from communicating on the side of the speed reduction mechanism 19.
    • 解决的问题:提供一种车辆用转向装置,其能够以简单的结构制成小型化,并且可以防止旋转角度传感器的性能劣化。 解决方案:ECU12设置在电动马达18和减速机构19之间.ECC 12包括用于检测电动机18的旋转角度的旋转角度传感器55.旋转角度传感器55包括检测 伴随电动机18的旋转旋转的磁体56和安装在ECU 12的控制基板67中的磁电变换器57.由第一壳体保持的盖68防止在检测到的相对表面56a,57a之间的空间S1 磁体56和磁电变换器57在减速机构19一侧进行通信。版权所有(C)2012,JPO&INPIT