Brushless direct current motor and driving unit thereof
    1.
    发明授权
    Brushless direct current motor and driving unit thereof 有权
    无刷直流电动机及其驱动单元

    公开(公告)号:US08629639B2

    公开(公告)日:2014-01-14

    申请号:US12397867

    申请日:2009-03-04

    IPC分类号: H02P25/00 H03K3/00

    CPC分类号: H02P6/14 H02K3/28 H02K29/03

    摘要: A brushless direct current (DC) motor includes a rotor, a stator and a driving unit. The rotor includes a plurality of magnetic poles. The stator includes a plurality of upper pole arms and a plurality of lower pole arms. The driving unit includes at least two coils wound on the upper pole arms and the lower pole arms respectively, and the driving unit generates an alternating magnetic field on the stator for driving the rotor.

    摘要翻译: 无刷直流(DC)电动机包括转子,定子和驱动单元。 转子包括多个磁极。 定子包括多个上极臂和多个下极臂。 驱动单元包括分别缠绕在上极臂和下极臂上的至少两个线圈,并且驱动单元在定子上产生用于驱动转子的交变磁场。

    CONTROL METHOD OF FAN ROTATION SPEED
    2.
    发明申请
    CONTROL METHOD OF FAN ROTATION SPEED 有权
    风速转速控制方法

    公开(公告)号:US20120269652A1

    公开(公告)日:2012-10-25

    申请号:US13185729

    申请日:2011-07-19

    IPC分类号: F04B49/00

    摘要: A control method of a fan rotation speed, which controls the operation of a fan set including fans connected in series, is disclosed. The control method includes the steps of acquiring a control factor; judging whether the control factor is less than a first threshold value; executing a first control procedure when the control factor is less than the first threshold value; judging whether the control factor is greater than a second threshold value when the control factor is greater than the first threshold; executing a second control procedure when the control factor is greater than the second threshold value; and executing a third control procedure when the control factor is less than the second threshold value.

    摘要翻译: 公开了一种风扇转速的控制方法,其控制包括串联连接的风扇的风扇组的操作。 控制方法包括获取控制因子的步骤; 判断所述控制因子是否小于第一阈值; 当所述控制因子小于所述第一阈值时,执行第一控制程序; 当所述控制因子大于所述第一阈值时,判断所述控制因子是否大于第二阈值; 当所述控制因子大于所述第二阈值时执行第二控制过程; 以及当所述控制因子小于所述第二阈值时执行第三控制过程。

    Driving apparatus for fan motor
    3.
    发明授权
    Driving apparatus for fan motor 有权
    风扇电机驱动装置

    公开(公告)号:US07826722B2

    公开(公告)日:2010-11-02

    申请号:US11450419

    申请日:2006-06-12

    IPC分类号: H02P7/29

    CPC分类号: H02P7/2913

    摘要: A driving apparatus for fan motors, electrically connected between a pulse width modulation (PWM) signal generator and a controller, includes a converter electrically connected to the PWM signal generator, generating a first reference voltage according to the duty cycle of a PWM signal generated by the PWM signal generator; a reference voltage generator electrically connected to an external power source, generating a second reference voltage according to the external power source; and a comparator having a first and second input terminal and an output terminal; wherein the first input terminal is electrically connected to the converter, the second input terminal is connected to the reference voltage generator and the output terminal is connected to the controller, and when the first reference voltage is greater than the second reference voltage, a driving signal is output from the output terminal to the controller to control the rotation speed of the fan motor.

    摘要翻译: 电连接在脉宽调制(PWM)信号发生器和控制器之间的风扇电动机的驱动装置包括电连接到PWM信号发生器的转换器,根据由PWM信号发生器产生的PWM信号的占空比产生第一参考电压, PWM信号发生器; 电连接到外部电源的参考电压发生器,根据外部电源产生第二参考电压; 以及具有第一和第二输入端子和输出端子的比较器; 其中所述第一输入端子与所述转换器电连接,所述第二输入端子连接到所述参考电压发生器,并且所述输出端子连接到所述控制器,并且当所述第一参考电压大于所述第二参考电压时,驱动信号 从输出端子输出到控制器,以控制风扇马达的转速。

    CIRCUIT BOARD ADAPTED TO FAN AND FAN STRUCTURE
    4.
    发明申请
    CIRCUIT BOARD ADAPTED TO FAN AND FAN STRUCTURE 审中-公开
    电路板适应风扇和风扇结构

    公开(公告)号:US20080112136A1

    公开(公告)日:2008-05-15

    申请号:US12013228

    申请日:2008-01-11

    IPC分类号: H05K7/20

    摘要: A circuit board adapted to a fan comprises a circuit region and a heat-dissipative film. The circuit region is provided on a first surface of the circuit board and comprises at least one heat-generating component thereon. The heat-dissipative film is coated on an edge portion of the first surface and is in contact with the heat-generating component. A plurality of openings through the heat-dissipative film, a protrusion of the circuit board, a cutout in the protrusion to expose the heat-generating component to airflow, etc., have been disclosed and claimed for enhancing the efficiency in heat dissipation. A heat sink may also be provided on a second surface opposite to the first surface of the circuit board. The heat sink is connected to the heat-dissipative film to help dissipate the heat generated by the operation of the fan.

    摘要翻译: 适于风扇的电路板包括电路区域和散热膜。 电路区域设置在电路板的第一表面上,并且在其上包括至少一个发热部件。 散热膜涂覆在第一表面的边缘部分上并与发热部件接触。 为了提高散热效率,已经公开并要求了通过散热膜的多个开口,电路板的突起,突起中的切口以将发热部件暴露于气流等。 也可以在与电路板的第一表面相对的第二表面上设置散热器。 散热器连接到散热片,以帮助消散风扇运行产生的热量。

    Fan system and driving control device of motor
    5.
    发明申请
    Fan system and driving control device of motor 有权
    电机风扇系统和驱动控制装置

    公开(公告)号:US20080088463A1

    公开(公告)日:2008-04-17

    申请号:US11898734

    申请日:2007-09-14

    IPC分类号: G08B17/00

    CPC分类号: H05K7/20209

    摘要: A driving control device of a motor includes a temperature sensing circuit, a comparing circuit, a rotation speed control circuit and a driving circuit. The temperature sensing circuit detects an environmental temperature for generating a sensing signal. The comparing circuit is electrically connected to the temperature sensing circuit, and compares the sensing signal with a reference voltage signal for outputting a comparing signal. The rotation speed control circuit is electrically connected to the comparing circuit and has a first threshold voltage and a second threshold voltage, both of which are compared with the comparing signal for outputting a rotation speed control signal. The driving circuit is electrically connected to the rotation speed control circuit, and generates a driving signal to drive the motor in accordance with the rotation speed control signal.

    摘要翻译: 电动机的驱动控制装置包括温度检测电路,比较电路,转速控制电路和驱动电路。 温度检测电路检测用于产生感测信号的环境温度。 比较电路电连接到温度检测电路,并将感测信号与用于输出比较信号的参考电压信号进行比较。 旋转速度控制电路电连接到比较电路,并且具有第一阈值电压和第二阈值电压,两者都与用于输出转速控制信号的比较信号进行比较。 驱动电路与旋转速度控制电路电连接,并根据转速控制信号产生驱动电机的驱动信号。

    Fan systems
    6.
    发明申请
    Fan systems 有权
    风扇系统

    公开(公告)号:US20070258805A1

    公开(公告)日:2007-11-08

    申请号:US11790851

    申请日:2007-04-27

    IPC分类号: F04D15/00

    摘要: A fan system comprising a first switch, a second switch, a coil, and a drive device. The drive device comprises a third switch and a fourth switch. The third switch, the fourth switch, the first switch, the second switch and the coil form a bridge connection.

    摘要翻译: 一种风扇系统,包括第一开关,第二开关,线圈和驱动装置。 驱动装置包括第三开关和第四开关。 第三开关,第四开关,第一开关,第二开关和线圈形成桥连接。

    Fan system and detector thereof
    7.
    发明申请
    Fan system and detector thereof 审中-公开
    风扇系统及其检测器

    公开(公告)号:US20070201612A1

    公开(公告)日:2007-08-30

    申请号:US11647472

    申请日:2006-12-29

    CPC分类号: H05K7/20209

    摘要: A fan system comprising a motor, a driving unit, and a detector is disclosed. The driving unit is electrically connected to the motor and generates a driving signal to drive the motor. The detector is electrically connected to the driving unit and receives a voltage signal. When the motor operates normally, the detector outputs an examined signal S1. When the motor operates abnormally, the detector receives a detection signal and transforms the examined signal to an alarm signal according to the voltage signal to detect the abnormal state.

    摘要翻译: 公开了一种包括马达,驱动单元和检测器的风扇系统。 驱动单元电连接到电动机,并产生驱动电机的驱动信号。 检测器电连接到驱动单元并接收电压信号。 当电机正常运行时,检测器输出检测信号S 1。 当电机异常运行时,检测器接收检测信号,根据电压信号将检测信号转换为报警信号,检测异常状态。

    Fan system and speed detecting device thereof
    8.
    发明申请
    Fan system and speed detecting device thereof 有权
    风扇系统及其速度检测装置

    公开(公告)号:US20070145920A1

    公开(公告)日:2007-06-28

    申请号:US11638508

    申请日:2006-12-14

    IPC分类号: H02P7/00

    摘要: A fan system includes a driving device, a speed detecting device and a logic device. The driving device generates a speed detecting signal and a predetermined alarm signal. The speed detecting device, which is electrically connected with the driving device, receives the speed detecting signal, and generates a low speed signal when the speed detecting signal is lower than a reference signal. The logic device is respectively electrically connected with the driving device and the speed detecting device, and generates an alarm signal when the logic device receives the predetermined alarm signal or the low speed signal.

    摘要翻译: 风扇系统包括驱动装置,速度检测装置和逻辑装置。 驱动装置产生速度检测信号和预定报警信号。 与驱动装置电连接的速度检测装置接收速度检测信号,当速度检测信号低于基准信号时,生成低速信号。 逻辑装置分别与驱动装置和速度检测装置电连接,并且当逻辑装置接收到预定的报警信号或低速信号时产生报警信号。

    Fan speed control circuit
    9.
    发明授权
    Fan speed control circuit 有权
    风扇转速控制电路

    公开(公告)号:US07233121B2

    公开(公告)日:2007-06-19

    申请号:US11270494

    申请日:2005-11-10

    IPC分类号: H02P25/12

    CPC分类号: H02P6/15

    摘要: A fan speed control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a phase compensation unit. The PWM signal generating circuit generates a PWM control signal with a sequence of alternating on-time and off-time, and the driving circuit outputs a driving signal according to the PWM control signal to a fan motor. The phase compensation unit is connected to the fan motor for delaying or advancing the PWM control signal by a phase angle to synchronize the acting period of the back electromotive force formed by the magnetic flux variation with the off-time of the PWM control signal. The present invention further provides a bi-power motor driving system including a motor rotating by receiving a first power from a first power generator, and a driving circuit for driving the motor according to a second power from a second power generator.

    摘要翻译: 风扇速度控制电路包括脉宽调制(PWM)信号发生电路,驱动电路和相位补偿单元。 PWM信号发生电路产生具有交替导通时间和关断时间的序列的PWM控制信号,并且驱动电路根据PWM控制信号向风扇电动机输出驱动信号。 相位补偿单元连接到风扇电动机,用于使PWM控制信号延迟或前进相位角,以使由磁通量变化形成的反电动势的动作周期与PWM控制信号的关闭时间同步。 本发明还提供一种双功率电动机驱动系统,其包括通过从第一发电机接收第一功率而旋转的电动机和用于根据来自第二发电机的第二功率驱动电动机的驱动电路。

    Fan system and its control device and control method
    10.
    发明申请
    Fan system and its control device and control method 有权
    风机系统及其控制装置及控制方法

    公开(公告)号:US20070041824A1

    公开(公告)日:2007-02-22

    申请号:US11504719

    申请日:2006-08-16

    IPC分类号: F04D15/00

    CPC分类号: F04D27/004

    摘要: A control device of a fan system, which has at least one fan, receives a starting voltage. The control device includes a start controlling unit and a driving unit. The start controlling unit receives the starting voltage and outputs a start controlling signal according to the starting voltage. After a predetermined period, the start controlling unit stops sending the start controlling signal. The driving unit is electrically connected to the start controlling unit and the fan, respectively. The driving unit receives the start controlling signal for controlling the rotation speed of the fan.

    摘要翻译: 具有至少一个风扇的风扇系统的控制装置接收启动电压。 控制装置包括起动控制单元和驱动单元。 起动控制单元接收起动电压,并根据起动电压输出起动控制信号。 在预定时间段之后,起动控制单元停止发送起始控制信号。 驱动单元分别与启动控制单元和风扇电连接。 驱动单元接收用于控制风扇转速的起始控制信号。