Reverse rotation detection and overspeed protection for power tool with brushless motor
    2.
    发明授权
    Reverse rotation detection and overspeed protection for power tool with brushless motor 有权
    带无刷电机的电动工具的反转检测和超速保护

    公开(公告)号:US09209724B2

    公开(公告)日:2015-12-08

    申请号:US13908521

    申请日:2013-06-03

    发明人: John C. Vanko

    摘要: A reverse rotation detection module is provided for a power tool having an electric motor intended to rotate in a first direction but not an opposite second direction. The reverse rotation detection module is comprised of: a switching arrangement having a plurality of motor switches; three position sensors; a first latch circuit; a second latch circuit; and a motor driver module that is configured to receive the shutdown signal from the second latch circuit and discontinue driving the motor in response to the shutdown signal. An overspeed protection module is provided for a handheld power tool. The overspeed protection module is comprised of: an electric motor; a switching arrangement having a plurality of motor switches; a diode pump circuit; a comparator circuit; and a motor driver module that is configured to receive a shutdown signal from the comparator circuit and discontinue driving the motor in response to the shutdown signal.

    摘要翻译: 为具有电动马达的电动工具提供反转检测模块,该电动机旨在沿第一方向旋转,而不是相反的第二方向。 反转检测模块包括:具有多个电动机开关的开关装置; 三位传感器; 第一锁存电路; 第二锁存电路; 以及电动机驱动器模块,其被配置为从所述第二锁存电路接收所述关闭信号,并且响应于所述关闭信号中止所述电动机的驱动。 为手持式电动工具提供超速保护模块。 超速保护模块包括:电动机; 具有多个电动机开关的开关装置; 二极管泵电路; 比较器电路; 以及电动机驱动器模块,其被配置为从所述比较器电路接收关闭信号,并且响应于所述关闭信号中止所述电动机的驱动。

    Protective Redudant Subsystem for Power Tools
    3.
    发明申请
    Protective Redudant Subsystem for Power Tools 审中-公开
    电动工具保护性助剂子系统

    公开(公告)号:US20150288250A1

    公开(公告)日:2015-10-08

    申请号:US14744599

    申请日:2015-06-19

    摘要: A protective redundancy circuit is provided for a power tool having an electric motor. The protective redundant subsystem is comprised of: a motor switch coupled in series with the motor; a motor control module that controls the switching operation of the motor switch; and a protective control module that monitors switching operation of the motor switch and disables the power tool when the switching operation of the motor switch fails. In the context of an AC powered tool, the switching operation of the motor switch is correlated to and synchronized to the waveform of the AC input signal. During each cycle or half cycle, the motor control module introduces a delay period before closing the motor switch and the protective control module determines the operational status of the motor switch by measuring the voltage across the motor switch during the delay period.

    摘要翻译: 为具有电动机的电动工具提供保护冗余电路。 保护冗余子系统包括:与电动机串联耦合的电动机开关; 控制电动机开关的开关动作的电动机控制模块; 以及保护控制模块,用于监视电动机开关的切换操作,并且在电动机开关的切换操作失败时禁用电动工具。 在交流电动工具的上下文中,电动机开关的开关操作与AC输入信号的波形相关并与其同步。 在每个周期或半周期期间,电机控制模块在关闭电动机开关之前引入延迟时间,并且保护控制模块通过在延迟期间测量电动机开关两端的电压来确定电动机开关的操作状态。

    COOLING SYSTEM CONTROL IN DISTRIBUTED ANTENNA SYSTEMS
    5.
    发明申请
    COOLING SYSTEM CONTROL IN DISTRIBUTED ANTENNA SYSTEMS 有权
    分布式天线系统中的冷却系统控制

    公开(公告)号:US20140037294A1

    公开(公告)日:2014-02-06

    申请号:US13950397

    申请日:2013-07-25

    IPC分类号: H04B10/07

    摘要: Power distribution modules in distributed antenna systems include fan monitoring circuits for indicating an alarm condition to head-end equipment. The alarm condition can be used by system operator/owners that a fan is drawing excessive power, thereby detracting from system performance, or indicating that the fan may fail. The alarm condition signal can be returned to the head-end equipment via an uplink communication path between a remote unit powered by the module and the head-end equipment.

    摘要翻译: 分布式天线系统中的配电模块包括用于向前端设备指示报警状况的风扇监控电路。 系统操作员/所有者可以使用报警条件,即风扇正在吸收过大的功率,从而降低系统性能,或指示风扇可能会失效。 报警条件信号可以通过由模块供电的远程单元和头端设备之间的上行链路通信路径返回到头端设备。

    Driving device and protection method thereof
    6.
    发明授权
    Driving device and protection method thereof 失效
    驱动装置及其保护方法

    公开(公告)号:US08089736B2

    公开(公告)日:2012-01-03

    申请号:US12409508

    申请日:2009-03-24

    申请人: Song-Ling Yang

    发明人: Song-Ling Yang

    IPC分类号: H01L41/08

    摘要: A driving device includes a motor, a first rotating portion, a second rotating portion, a piezoelectric assembly, and a controlling unit. The motor includes a rotating shaft. The first rotating portion is fixed to the rotating shaft. The second rotating portion is engaged with the first rotating portion. The piezoelectric assembly is sandwiched between the first rotating portion and the second rotating portion. The controlling unit is electrically connected to the motor and the piezoelectric assembly. The controlling unit is configured for storing a predetermined voltage, and determining whether an electric voltage output by the piezoelectric assembly is greater than or equal to the predetermined voltage and inactivating the motor if the electric voltage output by the piezoelectric assembly is greater than or equal to the predetermined voltage. A protection method for the driving device is also provided.

    摘要翻译: 驱动装置包括电机,第一旋转部分,第二旋转部分,压电组件和控制单元。 马达包括旋转轴。 第一旋转部固定在旋转轴上。 第二旋转部与第一旋转部接合。 压电组件夹在第一旋转部分和第二旋转部分之间。 控制单元电连接到电动机和压电组件。 控制单元被配置为存储预定电压,并且确定由压电组件输出的电压是否大于或等于预定电压,并且如果由压电组件输出的电压大于或等于 预定电压。 还提供了一种用于驱动装置的保护方法。

    Motor protection device and method
    7.
    发明授权
    Motor protection device and method 有权
    电机保护装置及方法

    公开(公告)号:US08013557B2

    公开(公告)日:2011-09-06

    申请号:US11976984

    申请日:2007-10-30

    申请人: Ching-Sheng Li

    发明人: Ching-Sheng Li

    IPC分类号: H02H7/08

    CPC分类号: H02H7/093 H02H3/006

    摘要: A motor protection device includes a detection unit for detecting an operating state of a motor and outputting a detection signal; a reference unit for generating a variable reference signal; a discriminating unit for comparing the detection signal with the variable reference signal to discriminate whether the motor is in an abnormal condition; and a protection unit that receives a result of discrimination from the discriminating unit and limits a driving current for the motor when the motor is in an abnormal condition. The motor protection device is characterized in that the reference unit adjusts the variable reference signal according to a motor rotation detection signal, so that the motor rotation detection signal and the detection signal are used synchronously in discriminating whether the motor is in an abnormal condition, and the motor in an abnormal condition may be doubly protected.

    摘要翻译: 电动机保护装置包括:检测电动机的运转状态并输出检测信号的检测部; 用于产生可变参考信号的参考单元; 鉴别单元,用于将检测信号与可变参考信号进行比较,以区分电动机是否处于异常状态; 以及保护单元,其接收到识别单元的鉴别结果,并且当电动机处于异常状态时限制电动机的驱动电流。 电动机保护装置的特征在于,基准单元根据电动机旋转检测信号来调整可变基准信号,使得电动机转动检测信号和检测信号被同步地使用以区分电动机是否处于异常状态,以及 电机处于异常状态可能会受到双重保护。

    Clothes dryer motor with broken belt switch
    9.
    发明授权
    Clothes dryer motor with broken belt switch 有权
    干衣机马达带断开皮带开关

    公开(公告)号:US07609491B2

    公开(公告)日:2009-10-27

    申请号:US11549192

    申请日:2006-10-13

    IPC分类号: H02H7/08

    摘要: A clothes dryer includes a motor adapted to be mounted on a frame of the dryer for driving a dryer belt to rotate a drum of the dryer. The motor includes a rotor adapted to rotate the belt, at least one winding energizable to cause rotation of the rotor, and a first switch operable to control energization of the winding. A second switch has a sensor for sensing belt breakage. The second switch is mounted on the first switch and is electrically connected to the winding so that when the belt is no longer sensed, the second switch stops operation of the winding and thereby stops rotation of the rotor.

    摘要翻译: 干衣机包括适于安装在干衣机的框架上的马达,用于驱动干衣机带旋转干衣机的滚筒。 所述马达包括转子,所述转子适于旋转所述带,所述至少一个线圈可激励以引起所述转子的旋转;以及第一开关,其可操作以控制所述绕组的通电。 第二开关具有用于感测皮带断裂的传感器。 第二开关安装在第一开关上,并且电连接到绕组,使得当不再感测到带时,第二开关停止绕组的操作,从而停止转子的旋转。

    Opening/closing member control apparatus and method for detecting pinching
    10.
    发明授权
    Opening/closing member control apparatus and method for detecting pinching 有权
    打开/关闭构件控制装置和检测夹紧方法

    公开(公告)号:US07579708B2

    公开(公告)日:2009-08-25

    申请号:US11516681

    申请日:2006-09-07

    CPC分类号: H02H7/0851 H02H3/44 H02H7/093

    摘要: A power window device includes window glass, an elevating mechanism, and a control device for detecting pinching of a foreign object by the window glass. The control device calculates an amount (a rotation speed variation ΣΔωα) of the pinching based on a variation amount of an opening/closing speed of the window glass, and estimates the amount (a rotation speed variation ΣΔωβ) of the pinching before the opening/closing speed changes due to the pinching. The control device determines the pinching of the foreign object based on these pinching calculation and estimation amounts.

    摘要翻译: 电动窗装置包括窗玻璃,升降机构和用于检测由窗玻璃夹住异物的控制装置。 控制装置基于窗玻璃的打开/关闭速度的变化量来计算夹持的量(旋转速度变化量SigmaDeltaomegaal),并且估计打开/关闭之前的夹持量(旋转速度变化SigmaDeltaomegabeta) 关闭速度由于夹紧而改变。 控制装置基于这些挤压计算和估计量来确定异物的夹持。