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    • 3. 发明授权
    • Engine-driven permanent magnetic type welding generator
    • 发动机驱动永磁式焊接发电机
    • US5936320A
    • 1999-08-10
    • US87935
    • 1998-06-01
    • Masanobu TakedaYasumasa MizunoShunichi TetsuiHirotaka Yamamoto
    • Masanobu TakedaYasumasa MizunoShunichi TetsuiHirotaka Yamamoto
    • F02B63/04H02K1/27H02K1/32H02K5/15H02K7/18H02K9/06H02K21/48H02K27/00H02K5/00H02K1/00H02K1/12H02K5/10
    • H02K1/278F02B63/04H02K1/32H02K27/00H02K5/15H02K7/1815H02K9/06F02B63/042H02K21/48
    • Disclosed is an engine-driven welding generator using a plurality of neodymium-iron-boron based rare earth magnets and provided with countermeasures for suppressing a rise in temperature of the magnets. The engine-driven welding generator driven by an engine (200) to generate both a dc welding power output and an auxiliary ac power output comprises: a stator (110) including a laminated-structure armature core (111) and an armature winding (112) wound around the armature core (111); a rotor (120) supported by the engine in cantilever fashion and including a laminated-structure field core (121) a plurality of magnet plates (122) containing neodymium-iron-boron based rare earth as the major component and arranged on an outer circumferential surface of the laminated-structure field core with a smallest possible gap between the two adjacent magnet plates, a plurality of centrifugal fan blades (123) arranged in the vicinity of the outer circumference of and on both side surfaces of the field core, and a plurality of axial air passages (121a) formed on an inner side of the field core; and an enclosure including a housing (101) fixed to the engine for supporting the stator, and a top cover (103) for introducing cooling air from one side surface of the rotor remote from the engine through the fan-shaped air passages formed in the rotor core in cooperation with the housing.
    • 公开了一种使用多个钕 - 铁 - 硼的稀土磁体的发动机驱动的焊接发生器,并且提供了用于抑制磁体的温度上升的对策。 由发动机(200)驱动以产生直流焊接功率输出和辅助交流功率输出的发动机驱动的焊接发生器包括:定子(110),其包括层叠结构的电枢铁芯(111)和电枢绕组(112) )缠绕在电枢铁芯(111)上; 由发动机以悬臂方式支撑的转子(120),并且包括层叠结构的磁芯(121),多个磁铁板(122),其包含以钕铁硼为基础的稀土作为主要部件并且设置在外周 层叠结构的磁芯的表面在两个相邻的磁体板之间具有尽可能小的间隙;多个离心式风扇叶片(123)布置在磁场磁芯的外周的外周附近, 形成在所述场磁芯的内侧的多个轴向空气通路(121a) 以及壳体,其包括固定到用于支撑定子的发动机的壳体(101),以及用于从远离发动机的转子的一个侧表面通过形成在所述发动机中的扇形空气通道引入冷却空气的顶盖(103) 转子芯与房屋配合。
    • 5. 发明授权
    • Brush holder assembly for electric motor
    • 电动机刷架总成
    • US4851730A
    • 1989-07-25
    • US136287
    • 1987-12-22
    • Fusao FushiyaKenji YoshidaAkira Naitoh
    • Fusao FushiyaKenji YoshidaAkira Naitoh
    • H02K27/00H02K5/14
    • H02K5/148
    • A brush holder assembly for a commutator type electric motor includes a substantially circular base plate of insulating material having a central aperture for receiving the motor commutator. The base plate includes a pair of brush holders for supporting brushes in operative relation to the commutator. A pair of conductive members are embedded in the base plate. Each conductive member has a brush holder mounting portion exposed on both sides of the base plate and a connecting terminal for electrical connection to the corresponding terminal of the stator coils. Power connecting means is provided on the base plate for electrically connecting the terminals of the stator coils to an electrical power source.
    • 用于换向器型电动机的电刷架组件包括具有用于接收电动机换向器的中心孔的绝缘材料的基本圆形的基板。 基板包括一对电刷架,用于支撑与换向器有效关系的电刷。 一对导电构件嵌入基板中。 每个导电构件具有暴露在基板两侧的电刷架安装部分和用于与定子线圈的相应端子电连接的连接端子。 电源连接装置设置在基板上,用于将定子线圈的端子电连接到电源。
    • 9. 发明申请
    • MOTOR
    • 发动机
    • US20110001384A1
    • 2011-01-06
    • US12921764
    • 2009-03-10
    • Noboru Segawa
    • Noboru Segawa
    • H02K27/00
    • B06B1/045H02K1/17H02K5/145H02K7/063H02K11/028H02K23/04
    • A vibration motor includes: a core pivotally supported on a shaft; a commutator for supplying electric current to a coil; a commutator holder having through holes extending in an axial direction of the shaft; and chip type varistors fitted into the through holes. The commutator is provided with conductors extending in the axial direction of the shaft, and the conductors are inserted into the through holes and press-fixed to end electrodes of the chip type varistors. A first protrusion is provided on a first wall surface forming each through hole, and a second protrusion facing the first protrusion is provided on a second wall surface.
    • 振动马达包括:枢轴地支撑在轴上的芯; 用于向线圈提供电流的换向器; 换向器支架,其具有沿轴的轴向延伸的通孔; 并安装在通孔中的芯片型压敏电阻。 换向器设置有沿轴的轴向延伸的导体,并且导体插入到通孔中并压固在芯片型压敏电阻的端电极上。 在形成每个通孔的第一壁表面上设置有第一突起,并且在第二壁表面上设置面向第一突起的第二突起。
    • 10. 发明授权
    • Method and apparatus for quiet variable motor speed control
    • 用于静音可变电机速度控制的方法和装置
    • US07330004B2
    • 2008-02-12
    • US11447728
    • 2006-06-06
    • Stuart DeJongeJames P SteinerAaron DobbinsChen Ming Wu
    • Stuart DeJongeJames P SteinerAaron DobbinsChen Ming Wu
    • H02K27/00
    • H02P25/14H02P25/04H02P27/16H02P29/50
    • An apparatus for controlling the speed of an AC motor comprising a switch adapted to be coupled in parallel with power terminals for the AC motor; a capacitor coupled in series with the parallel combination of the switch and the motor; the capacitor adapted to provide an AC supply voltage from an AC source to the parallel circuit comprising the motor and the switch; and a control circuit for controlling the conduction time of the switch in order to vary the speed of the motor. The switch is preferably pulse-width modulated at a frequency twice the line frequency of the AC supply voltage, and the switch is turned on when the voltage across the AC motor is zero volts. The apparatus is operable to provide for continuously variable control of the motor speed while minimizing acoustic noise in the motor.
    • 一种用于控制AC电动机的速度的装置,包括适于与AC电动机的电源端并联耦合的开关; 电容器与开关和电动机的并联组合串联耦合; 所述电容器适于将AC电源电压从AC电源提供给包括电动机和开关的并联电路; 以及用于控制开关的导通时间以便改变电动机的速度的控制电路。 该开关优选地以两倍于AC电源电压的频率的频率进行脉冲宽度调制,并且当交流电动机上的电压为零伏特时,该开关导通。 该装置可操作以提供电动机速度的连续可变控制,同时最小化电动机中的声学噪声。