会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 73. 发明授权
    • Alternating current generator and schottky barrier diode
    • 交流发电机和肖特基势垒二极管
    • US5780996A
    • 1998-07-14
    • US667307
    • 1996-06-21
    • Shin KusaseAtsushi UmedaMakoto Taniguchi
    • Shin KusaseAtsushi UmedaMakoto Taniguchi
    • H01L29/872H01L29/47H02J7/14H02K19/36H02P9/00H02P9/02H02P9/30
    • H02P9/02H02P9/305
    • Rectifying elements that constitute a full-wave rectifier of an on-vehicle alternator are constituted by Schottky barrier diodes. The Schottky barrier diode has on one hand the drawback that rectifying characteristics thereof deteriorate due to the heat generation resulting from large avalanche breakdown current that is produced due to surge voltage, with the result that leakage current that occurs when reverse voltage is applied increases. However, according to the present invention, since the surge voltage is absorbed by a voltage regulation diode connected in parallel with the Schottky barrier diode, the voltage regulation diode is broken down when surge voltage has been applied. Accordingly, it does not happen that reverse voltage that exceeds the breakdown voltage of the voltage regulation diode is applied to the Schottky barrier diode. Therefore, it does not happen that the current due to surge voltage exceeding the breakdown voltage thereof flows in the Schottky barrier diode.
    • 构成车载交流发电机的全波整流器的整流元件由肖特基势垒二极管构成。 肖特基势垒二极管一方面具有由于由于浪涌电压而产生的大雪崩击穿电流导致的发热而导致整流特性恶化的缺点,结果是施加反向电压时发生的漏电流增加。 然而,根据本发明,由于浪涌电压被与肖特基势垒二极管并联连接的电压调节二极管吸收,所以在施加了浪涌电压时,电压调节二极管被分解。 因此,不会将超过电压调节二极管的击穿电压的反向电压施加到肖特基势垒二极管。 因此,不会由于浪涌电压超过其击穿电压而流过的电流在肖特基势垒二极管中流动。
    • 74. 发明授权
    • Alternator
    • 发电机
    • US5780953A
    • 1998-07-14
    • US658532
    • 1996-06-05
    • Atsushi UmedaNorihito TokuraHirohide SatoMakoto TaniguchiShin Kusase
    • Atsushi UmedaNorihito TokuraHirohide SatoMakoto TaniguchiShin Kusase
    • H02J7/14H02K1/22H02K11/04H02K21/00H02K21/04H02P9/48
    • H02P9/48H02J7/1492H02K11/046H02K21/044Y02T10/92
    • In an on-vehicle alternator, both the magnetic flux variation frequency and maximum flux density are decreased sufficiently to thereby decrease the internal iron loss and thereby realize an increase in the current generation efficiency. The on-vehicle alternator comprises a rotor wherein magnetic pole cores that are polarized by a rotor coil to alternately different polarities are circumferentially disposed on the outer periphery thereof at prescribed equi-angular intervals. A permanent magnet which is embedded within a resin-made retainer body is provided between the magnetic pole cores and has side faces, as viewed circumferentially, which are polarized respectively to the same polarities as those of adjacent respective magnetic pole cores to thereby vary the magnetic flux quantity directed toward stator coils so as to exhibit a circumferential gentle curve. A rectifier is constructed using SiC-MOS transistors so that it is conductive and operative to thereby charge a battery with the current developed in the stator coils only when the alternating current voltages generated in the stator coils have become higher than the battery voltage.
    • 在车载交流发电机中,磁通量变化频率和最大磁通密度都充分降低,从而降低内部铁损,从而实现电流产生效率的提高。 车载交流发电机包括转子,其中由转子线圈极化为交替不同极性的磁极铁芯以规定的等角间隔周向地设置在其外周。 嵌入在树脂制保持器本体内的永磁体设置在磁极芯之间,并且具有圆周方向的侧面,其分别极化到与相邻的各个磁极芯的极性相同的极性,从而改变磁性 磁通量定向于定子线圈,以便呈现圆周平缓曲线。 使用SiC-MOS晶体管构造整流器,使得它是导电的并且可操作,从而仅当在定子线圈中产生的交流电压变得高于电池电压时,才能利用定子线圈中产生的电流对电池充电。
    • 77. 发明授权
    • Rotary electric machine having engine cooling water pump
    • 旋转电机具有发动机冷却水泵
    • US5655485A
    • 1997-08-12
    • US651485
    • 1996-05-22
    • Shin KusaseAtsushi Umeda
    • Shin KusaseAtsushi Umeda
    • H02K5/20F02B67/00F04D13/06F04D29/42H02K7/00H02K7/10H02K7/14H02K9/02H02K9/22F01P1/06
    • F04D13/0666F04D29/426H02K7/00H02K7/1004H02K7/14H02K9/22
    • A rotary electric machine such as an alternator or a motor has an engine-cooling water-pump in an integral unit. The rotary electric machine is composed of a frame secured to a front surface of an engine, an electric machine unit , a pump unit and a driving unit. The frame has a wall portion and a water passage formed on a rear surface of the wall portion and connected between the engine cooling system and the engine. The electric machine unit has a stator disposed in thermal contact with a front surface of the wall portion and a rotor fixed to a shaft of the driving unit. The pump unit is fixed to the frame and has a pump impeller disposed in the water passage to take cooling water from the cooling system to the engine through the cooling water passage. The driving member includes a pulley driven by an engine and a shaft supported by the wall portion through a bearing to drive the rotor and the impeller.
    • 诸如交流发电机或电动机的旋转电机具有集成单元中的发动机冷却水泵。 旋转电机由固定在发动机前表面上的框架,电机单元,泵单元和驱动单元组成。 框架具有形成在壁部的后表面上并连接在发动机冷却系统和发动机之间的壁部分和水通道。 电机单元具有与壁部的前表面热接触的定子和固定到驱动单元的轴的转子。 泵单元固定在框架上,并具有设置在水通道中的泵叶轮,以将冷却水从冷却系统通过冷却水通道引入发动机。 驱动构件包括由发动机驱动的滑轮和由轴承支撑的轴,以驱动转子和叶轮。