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公开(公告)号：US4274036A
公开(公告)日：1981-06-16
申请号：US004881
申请日：1979-01-19
申请人： Yoshinori Fukasaku , Kunihiro Noto
发明人： Yoshinori Fukasaku , Kunihiro Noto
CPC分类号： H02P7/2885 , Y10S388/91
摘要： A rotational speed control circuit for a D.C. motor includes a power transistor with its emitter-collector path connected in series with the D.C. motor and a power supply. A base current of the power transistor is controlled by an output of a differential amplifier which is supplied at its one of input terminals with a constant voltage and at the other input terminal with a voltage changing in accordance with a terminal voltage of the D.C. motor. Further the latter input terminal of the differential amplifier is given a variable bias potential by means of an adjustable mechanism. By this circuit configuration, the rotational speed of the D.C. motor can be continuously and proportionally adjusted over a wide range and once the rotational speed is set to predetermined value by the adjustable mechanism, a stable and constant speed control for the D.C. motor can be achieved.
摘要翻译： 用于直流电动机的转速控制电路包括功率晶体管，其发射极 - 集电极路径与直流电动机和电源串联。 功率晶体管的基极电流由在其一个输入端子处以恒定电压提供的差分放大器的输出控制，另一个输入端子的电压根据直流电动机的端子电压而变化。 此外，通过可调机构给差分放大器的后一个输入端子提供可变的偏置电位。 通过该电路结构，能够在宽范围内连续地成比例地调整直流电动机的转速，一旦通过可调节机构将转速设定为规定值，则可以实现对直流电动机的稳定且恒定的速度控制 。
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2.发明授权Cooling apparatus for motor means to protect commutator from dust and moisture in cooling air 失效用于电机的冷却装置意味着保护换向器免受冷却空气中的灰尘和湿气的影响
公开(公告)号：US4626720A
公开(公告)日：1986-12-02
申请号：US676925
申请日：1984-11-30
CPC分类号： H02K9/06
摘要： Cooling air is introduced through an opening in a wall portion of the motor housing radially opposing the commutator. A deflecting surface is provided for deflecting the cooling air entering the motor through the opening away from the commutator and toward the armature so as to prevent direct contact of dust and moisture in the cooling air with the commutator.
摘要翻译： 冷却空气通过径向相对于换向器的马达壳体的壁部中的开口引入。 提供偏转表面，用于使进入电动机的冷却空气通过开关远离换向器并朝向电枢偏转，以防止冷却空气中的灰尘和湿气与换向器的直接接触。
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公开(公告)号：US4614152A
公开(公告)日：1986-09-30
申请号：US667755
申请日：1984-11-02
CPC分类号： B60H1/00678 , Y10T137/86815 , Y10T137/86847
摘要： An air induction system for an automotive air-conditioner has an air switching housing connected to the suction opening of a blower casing. The housing is provided with a fresh outdoor air induction opening formed in the top wall opposing the suction opening, and a recirculated indoor air induction opening formed in a side wall adjacent to the top wall. An air-switching door is provided for selectively opening and closing the outdoor air induction opening and the indoor air opening. The air-switching door is foldable substantially at its mid portion so that, when the door closes the indoor air induction opening, it is folded to provide a small effective area, while, when it closes the outdoor air induction opening, it is extended to provide a large effective area. The system further has auxiliary indoor air induction openings formed in other side walls and an accordion-type shutter for selectively closing and opening the auxiliary indoor air induction opening. The air switching door and the accordion-type shutter are operatively connected such that, when the door opens the outdoor air induction opening and closes the indoor air opening, the shutter closes the auxiliary indoor air induction openings.
摘要翻译： 用于汽车空调的空气感应系统具有连接到鼓风机壳体的吸入口的空气切换壳体。 壳体设置有形成在与吸入口相对的顶壁中的新鲜的室外空气感应开口，以及形成在与顶壁相邻的侧壁中的再循环的室内空气感应开口。 设置有用于选择性地打开和关闭室外空气吸入口和室内空气开口的空气切换门。 空气切换门可在其中间部分大体上折叠，使得当门关闭室内空气感应开口时，它被折叠以提供小的有效面积，而当其关闭室外空气感应开口时，其延伸到 提供较大的有效面积。 该系统还具有形成在其他侧壁中的辅助室内空气感应开口和用于选择性地关闭和打开辅助室内空气感应开口的手风琴式快门。 空气切换门和手风琴式快门可操作地连接，使得当门打开室外空气吸入口并关闭室内空气开口时，快门关闭辅助室内空气感应开口。
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公开(公告)号：US4428719A
公开(公告)日：1984-01-31
申请号：US260275
申请日：1981-05-06
CPC分类号： F04D25/0606
摘要： Provided is a brushless-motor fan unit having a centrifugal fan and a scroll casing enclosing the centrifugal fan therein. The rotor of the brushless-motor is carried by the centrifugal fan. Further, the motor shaft carrying the centrifugal fan is supported at its front and rear ends by the scroll casing. With this construction, the motor housing can be eliminated so as to obtain a compact centrifugal type motor fan unit in a small thickness as a whole.
摘要翻译： 本发明提供一种具有离心风扇和将离心式风扇包围的涡旋壳体的无刷电动机风扇单元。 无刷电机的转子由离心风机承载。 此外，承载离心式风扇的马达轴在其前端和后端由涡旋壳体支撑。 通过这种结构，可以消除电动机壳体，从而获得整体上厚度小的紧凑型离心式电动机风扇单元。
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公开(公告)号：US5714826A
公开(公告)日：1998-02-03
申请号：US398521
申请日：1995-03-03
申请人： Sumio Furukawa , Kunihiro Noto , Masaru Watanabe , Koji Nosaka
发明人： Sumio Furukawa , Kunihiro Noto , Masaru Watanabe , Koji Nosaka
CPC分类号： H01R39/40 , H02K13/10 , H02K23/18 , H02K5/148 , H02K2213/03
摘要： An electric motor is provided with especially brushes of which rear ends are cut diagonally to form acute angles at the corner edges on the backward side of the rotating direction of the armature. The brushes are maintained securely in brush holders without vibration by first and second side walls of the brush holders according to component force of pressing force applied on the slant rear ends of the brushes by pressing members, therefore the objectionable noise caused by the "stick-slip" is prevented very effectively without introducing complicated structure in the motor.
摘要翻译： 电动机具有特别是电刷，其后端被对角切割，以在电枢的旋转方向的后侧的拐角边缘处形成锐角。 根据施加在刷子的倾斜后端上的按压力的分力，按下刷子的第一侧壁和第二侧壁，电刷可靠地保持在刷架中，因此由“ 滑动“被非常有效地防止，而不会在马达中引入复杂的结构。
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公开(公告)号：US3997806A
公开(公告)日：1976-12-14
申请号：US530281
申请日：1974-12-06
申请人： Kunihiro Noto , Hiroaki Mizoguchi
发明人： Kunihiro Noto , Hiroaki Mizoguchi
摘要： A rotor for a flat-type motor is constructed to include a flat armature, which comprises a flat armature winding in the form of a disk, and an insulating resinous body in which the armature winding is embedded. The insulating resinous body has a greater thickness than the armature winding so as to cover the winding, but is formed with cooling structure, such as grooves and bores, in positions where the coil portions of the armature winding on which the magnetic flux of the field magnets acts effectively are embedded, thereby promoting dissipation of heat from the armature winding.
摘要翻译： 用于平面型电动机的转子被构造成包括扁平电枢，其包括盘形的扁平电枢绕组和埋入电枢绕组的绝缘树脂体。 绝缘树脂体的厚度大于电枢绕组，以覆盖绕组，而是形成有诸如槽和孔的冷却结构，其中电枢绕组的线圈部分在其上具有磁场的磁通量 磁体作用有效地嵌入，从而促进来自电枢绕组的热耗散。
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