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    • 1. 发明专利
    • Power supply device
    • 电源设备
    • JP2014135461A
    • 2014-07-24
    • JP2013004145
    • 2013-01-14
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • OOKA SHINJIOKUBO TAKUYA
    • H05K9/00H02M3/28
    • H01F27/02H01F27/362
    • PROBLEM TO BE SOLVED: To provide a power supply device in which leakage of electromagnetic noise can be suppressed effectively.SOLUTION: A power supply device 1 includes a magnetic component 2 having a coil 21 formed annularly, a case body 3 consisting of a conductor having an open surface in the axial direction of the coil 21, a case lid consisting of a conductor having internal surface along the open surface, and a plurality of conduction parts 5 for electrically conducting the case body 3 and the case lid in the open surface, with a lower resistance than other parts. When viewed from the axial direction, the conduction parts 5 are arranged at the intersection where a straight line L that is 45°±15° for the perpendicular N, drawn on a side plate 32 closest to the center C of the coil 21 of at least one magnetic component 2, crosses the side plate 32 on which the perpendicular N is drawn.
    • 要解决的问题:提供能够有效地抑制电磁噪声泄漏的电源装置。解决方案:电源装置1包括具有环形形状的线圈21的磁性部件2,壳体3, 线圈21的轴向的开放面,由沿着开放面的内表面的导体构成的壳体盖,以及用于导引壳体3和开口面的壳体盖的多个导电部5, 电阻比其他部分低。 当从轴向观察时,导电部分5布置在垂线N的直线L为45°±15°的交点处,该直线L被绘制在最靠近线圈21的中心C的侧板32上 至少一个磁性部件2穿过其上绘制垂直N的侧板32。
    • 3. 发明专利
    • Transmission driver circuit
    • 传动驱动电路
    • JP2012169905A
    • 2012-09-06
    • JP2011029732
    • 2011-02-15
    • Nippon Soken IncDenso Corp株式会社デンソー株式会社日本自動車部品総合研究所
    • SUZUKI YOICHIROOOKA SHINJIMORI HIROYUKINAGASE KAZUYOSHIWANG FAN
    • H04L25/02H03K19/0175
    • H04L25/028H04L25/0272
    • PROBLEM TO BE SOLVED: To provide a transmission driver circuit capable of appropriately suppressing generation of a common mode voltage even in differential communication where signal transmission speed is fast.SOLUTION: A level hold circuit 3 detects a change in the common mode voltage generated in a transmission line 5 when a communication signal output part 2 changes the voltage level of a differential signal, and holds the detected level. A signal processing circuit 4 compares the detected level with an upper limit reference value and a lower limit reference value, and adjusts an output state of the voltage by the communication signal output part 2 so as to reduce the common mode voltage to be generated at the next signal transmission when the detected level exceeds the upper limit reference value or falls below the lower limit reference value.
    • 要解决的问题:即使在信号传输速度快的差分通信中,也提供能适当地抑制共模电压的产生的传输驱动电路。 解决方案:当通信信号输出部分2改变差分信号的电压电平时,电平保持电路3检测在传输线5中产生的共模电压的变化,并保持检测到的电平。 信号处理电路4将检测电平与上限基准值和下限基准值进行比较,并且通过通信信号输出部分2调节电压的输出状态,以便降低在该信号输出部分2产生的共模电压 当检测到的电平超过上限参考值或低于下限参考值时的下一个信号传输。 版权所有(C)2012,JPO&INPIT
    • 5. 发明专利
    • Switching device
    • 切换设备
    • JP2013038916A
    • 2013-02-21
    • JP2011173035
    • 2011-08-08
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • OOKA SHINJIIYASU SEIJIYOSHIKAWA SATORUYAMASHITA TAKESHI
    • H02M3/155H02M3/28H02M7/12H02M7/48
    • PROBLEM TO BE SOLVED: To provide a switching device which can stabilize the control target to satisfy specifications on harmonic current or electromagnetic noise even when a switching frequency is spectrum spread.SOLUTION: An input current sine wave control device 50A (switching device) includes: pulse cycle selection means 55a which selects two or more kinds of pulse cycles from multiple kinds of pulse cycles; control cycle setting means 55b which sets a sum total of pulse cycles selected by the pulse cycle selection means 55a as a control cycle; and operation signal transmission means 55c which transmits an operation signal Sp after changing an on/off duty cycle every control cycle which was set by the control cycle setting means 55b. According to this configuration, the length of the control cycle is maintained at constant length, and also the duty cycle is maintained within the control cycle. Therefore, the control target is stabilized, making it possible to reduce harmonic current or electromagnetic noise.
    • 要解决的问题:即使当开关频率是频谱扩展时,提供一种可以使控制目标稳定以满足谐波电流或电磁噪声的规格的开关装置。 输入电流正弦波控制装置50A(开关装置)包括:脉冲周期选择装置55a,其从多种脉冲周期中选择两种以上的脉冲周期; 控制周期设定单元55b,将由脉冲周期选择单元55a选择的脉冲周期的总和设定为控制周期; 以及在由控制周期设定装置55b设定的每个控制周期改变开/关占空比之后发送操作信号Sp的操作信号发送装置55c。 根据该结构,将控制周期的长度保持为恒定长度,并且将占空比保持在控制周期内。 因此,控制目标稳定,可以减少谐波电流或电磁噪声。 版权所有(C)2013,JPO&INPIT
    • 6. 发明专利
    • Power conversion apparatus
    • 功率转换装置
    • JP2012257370A
    • 2012-12-27
    • JP2011128376
    • 2011-06-08
    • Nippon Soken Inc株式会社日本自動車部品総合研究所Denso Corp株式会社デンソー
    • YOSHIKAWA SATORUIYASU SEIJIANDO SHINJIOOKA SHINJIISHII ATSUSHI
    • H02M3/155
    • H02M1/12H02M1/4225Y02B70/126
    • PROBLEM TO BE SOLVED: To provide a power conversion apparatus capable of suppressing a level of switching noise over a wide frequency domain.SOLUTION: A diffusion pattern of switching frequency is configured by composing a main diffusion pattern specifying two frequencies f1 and f2 with respect to time and a sub diffusion pattern, in which intervals of frequencies adjacent to each other are smaller than those of main diffusion pattern, specifying three frequencies f3, f4 and f5 with respect to time. Switching frequencies can be diffused as conventionally by the main diffusion pattern. This can suppress a level of switching noise in a low frequency domain. Furthermore, peaks of switching noise at a frequency of switching frequency in a harmonic wave category can be sufficiently diffused by the sub diffusion pattern. This can suppress a level of switching noise in a high frequency domain. Thus, the level of switching noise can be suppressed over a wide frequency domain.
    • 解决的问题:提供能够抑制宽频域的开关噪声的电平的电力转换装置。 解决方案:通过组合指定相对于时间的两个频率f1和f2的主扩散图案和相邻的频率间隔小于主扩散模式的子扩散模式来配置开关频率的扩散图案 扩散图案,相对于时间指定三个频率f3,f4和f5。 开关频率可以如常规地通过主扩散图案扩散。 这可以抑制低频域中的开关噪声水平。 此外,谐波类别中的开关频率的开关噪声的峰值可以被子扩散图案充分地扩散。 这可以抑制高频域的开关噪声水平。 因此,可以在宽频域上抑制开关噪声的电平。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Motor equipment
    • 电机设备
    • JP2008022615A
    • 2008-01-31
    • JP2006191117
    • 2006-07-12
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • OOKA SHINJIASAKURA FUMIOYOSHIDA HIDEJI
    • H02K5/00H02K5/22H02K29/08H02M7/00
    • PROBLEM TO BE SOLVED: To reduce the adverse effects due to noise currents without using a large shield plate, in motor equipment 1. SOLUTION: The motor equipment 1 is equipped with a conductive member 7 which covers a surface 38 which faces closest to a motor 2, within the surface of a connector 6, and a surface 39 which faces closest to a drive circuit 4 and a first inductor 23. Since the motor 2, the drive circuit 4, and the first inductor 23 are sources of generating magnetic flux, magnetic flux can be shielded efficiently by covering the surfaces 38 and 39 facing closest to each with the conductive member 7. Therefore, adverse effects due to noise currents can be mitigated without using a large shield plate. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:在电动机设备1中,为了减少噪声电流的不利影响而不使用大的屏蔽板。解决方案:电动机设备1配备有覆盖表面38的导电部件7 在连接器6的表面内最靠近电动机2的面和最靠近驱动电路4和第一电感器23的表面39.由于电动机2,驱动电路4和第一电感器23是 产生磁通量的源可以通过覆盖最靠近导电部件7的表面38和39来有效地屏蔽磁通。因此,可以减轻由于噪声电流引起的不利影响而不使用大的屏蔽板。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Wiring structure and electronic device using the same
    • 使用它的接线结构和电子器件
    • JP2006216677A
    • 2006-08-17
    • JP2005026441
    • 2005-02-02
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • OOKA SHINJISAKAKIBARA HIROYUKIYOSHIDA HIDEJI
    • H05K9/00H05K1/14H05K7/06H05K7/20
    • PROBLEM TO BE SOLVED: To reduce a radiation magnetic field and inductance, which occur by a current path comprising bus bars in a three-dimensional module structure using the bus bars.
      SOLUTION: A first bus bar 50 and a second bus bar 60 have parts which mutually become parallel. When a distance between the parts which mutually become parallel is smaller than a distance between a first connection point and a second connection point, or a distance between a third connection point and a fourth connection point; at least the first bus bar 50 or the second bus bar 60 is brought close to a first substrate 20 or a second substrate 30 so as to be made parallel. A direction of current flowing in the first bus bar 50 and a direction of current flowing in the second bus bar 60 become opposite. Mutual inductance which occurs by current flowing in the respective bus bars 50 and 60 reduces total inductance of the bus bar 50 and 60.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了减少由使用母线的三维模块结构中的包括母线的电流路径发生的辐射磁场和电感。 解决方案:第一母线50和第二母线60具有相互平行的部分。 当彼此平行的部分之间的距离小于第一连接点和第二连接点之间的距离或者第三连接点和第四连接点之间的距离时, 至少第一汇流条50或第二汇流条60靠近第一基板20或第二基板30以使其平行。 在第一母线50中流动的电流的方向和在第二母线60中流动的电流的方向变得相反。 通过在各母线50和60中流动的电流而发生的相互电感降低了母线50和60的总电感。版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Motor controller
    • 电机控制器
    • JP2005057883A
    • 2005-03-03
    • JP2003285990
    • 2003-08-04
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • OOKA SHINJIMORITA NAOHARU
    • H02P7/29
    • PROBLEM TO BE SOLVED: To offer a motor controller which can suppress a cost up and besides can reduce electromagnetic noise without dropping the mountability to a vehicle.
      SOLUTION: A switching controller adjusts the output timing of gate signals G1 and G4 so that noise components may not arise in common mode voltage. For example, in case delay occurs between the operation timing of a switching element Q4 to a gate signal G4 and the operation timing of a switching element Q1 to a gate signal G1, it controls the output timing of the gate signal G1 by the amount of its delay time. According to the above method, the operation timing of the switching element Q1 and that of the switching element Q4 accord roughly with each other, therefore as for the common-mode voltage in switching, the voltage waveform generated in a motor terminal M1 and the voltage waveform generated in a motor terminal M2 are offset and it reduces to potential half VD and noise components are not generated.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供可以抑制成本的电动机控制器,并且还可以降低电磁噪声,而不会降低对车辆的安装能力。 解决方案:开关控制器调节栅极信号G1和G4的输出定时,使得在共模电压下不会产生噪声分量。 例如,在开关元件Q4与栅极信号G4的动作定时与开关元件Q1的操作定时与栅极信号G1之间发生延迟的情况下,将栅极信号G1的输出定时控制为 其延迟时间。 根据上述方法,开关元件Q1和开关元件Q4的动作时刻大致相同,因此与开关用的共模电压一样,在电动机端子M1中产生的电压波形和电压 在电动机端子M2中产生的波形偏移,并且其减小到潜在的一半VD,并且不产生噪声分量。 版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Dc motor
    • 直流电动机
    • JP2005020797A
    • 2005-01-20
    • JP2003177761
    • 2003-06-23
    • Denso CorpNippon Soken Inc株式会社デンソー株式会社日本自動車部品総合研究所
    • OOKA SHINJIMORITA NAOHARU
    • H02K3/12H02K3/34H02K23/30
    • PROBLEM TO BE SOLVED: To provide a DC motor in which a cost rise can be suppressed, and the generation of an electromagnetic noise can be reduced without lowering mountability in a vehicle.
      SOLUTION: The DC motor includes an insulating material 16 for protecting an armature conductor 13 in the slot 12a of an armature core 12, which is increased in thickness as compared with a conventional article to increase an impedance between the armature conductor 13 and the armature core 12 (film thickness of powder coating: 0.1 mm to 1 mm). Thus, the armature conductor 13 is concentrated at the central part in the slot 12a in the radial section of the armature core 12 and mounted. On account of this, since a distance between the armature conductor 13 and the armature core 12 can be secured larger than a prior art and the impedance between the armature conductor 13 and the armature core 12 is increased, noise current (common mode current) flowing from the armature conductor 13 to the armature core 12 is reduced to suppress the generation of the electromagnetic noise.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供可以抑制成本上升的直流电动机,并且可以降低电磁噪声的产生而不降低车辆的安装性。 解决方案:直流电动机包括绝缘材料16,用于保护电枢芯12的槽12a中的电枢导体13,其与常规制品相比增加了厚度,以增加电枢导体13和 电枢芯12(粉末涂层的膜厚度:0.1mm至1mm)。 因此,电枢导体13集中在电枢铁心12的径向部分的槽12a的中央部并安装。 因此,由于电枢导体13与电枢铁芯12之间的距离可以比现有技术更大,电枢导体13与电枢铁芯12之间的阻抗增加,所以流动的噪声电流(共模电流) 从电枢导体13到电枢铁心12的电压降低,抑制电磁噪声的产生。 版权所有(C)2005,JPO&NCIPI