Method of controlling the commutation in an electronically commutated motor, and an electronically commutated motor for carrying out said method
    1.
    发明授权
    Method of controlling the commutation in an electronically commutated motor, and an electronically commutated motor for carrying out said method 失效
    电子换向马达中的换向控制方法以及用于执行所述方法的电子换向马达

    公开(公告)号:US06995534B2

    公开(公告)日:2006-02-07

    申请号:US10432444

    申请日:2002-07-20

    IPC分类号: H02P7/00

    CPC分类号: H02P6/20 H02P6/28

    摘要: A method is disclosed for controlling the commutation in an electronically commutated motor (20) which comprises a stator having at least one phase (24, 26), and a permanent-magnet rotor (22), and with which a current limiter (36, 58) and a controller (18) for regulating a motor variable are associated. The current limiter (36, 58) serves to limit the current (I) in the at least one phase (24, 26) to a setpoint value. The regulation by means of the controller (18) is accomplished by modifying the distance in time (W) between switching on (t1) and switching off (t2) of the current (i1, i2) in the at least one phase. In this method, the setpoint value to which the current limiter limits the current (i1, i2) in the relevant phase is modifiable. It is modified substantially as a function of a ratio of two times (W/T), namely as a function of the ratio of the distance in time (W) between switching on (t1) and switching off (t2) of the current (i1, i2) in the relevant phase (24, 26) to the time period (T) required by the rotor, at the instantaneous rotation speed, to rotate through a specified rotation angle. A decrease in noise at low rotation speeds is thereby made possible.

    摘要翻译: 公开了一种用于控制电子换向电动机(20)中的换向的方法,该电动机包括具有至少一个相位(24,26)和永磁体转子(22)的定子,并且限流器(36, 58)和用于调节电动机变量的控制器(18)相关联。 电流限制器(36,58)用于将至少一个相位(24,26)中的电流(I)限制到设定值。 通过控制器(18)的调节是通过修改在至少一个中的当前(i 1,i 2)的开启(t 1)和断开(t 2)之间的时间(W)的距离来实现的 相。 在该方法中,限流器限制相关相位中的电流(i 1,i 2)的设定值是可修改的。 它基本上作为两倍(W / T)的函数的函数进行修改,即作为开关导通(t 1)和截止(t 2)之间的时间(W)的距离的比值 在相关阶段(24,26)到转子所需时间(T)的电流(i 1,i 2)以瞬时转速旋转指定的旋转角度。 因此,可以降低低转速时的噪音。

    Electronically commutated motor
    2.
    发明授权
    Electronically commutated motor 失效
    电子换向电机

    公开(公告)号:US06906486B2

    公开(公告)日:2005-06-14

    申请号:US10433139

    申请日:2001-12-21

    IPC分类号: H02P6/08 H02P6/14 H02P7/50

    摘要: An electronically commutated motor has a rotor (108), a stator having a stator winding arrangement (102), and a full bridge circuit (137) for controlling the current (i1, i2) in the stator winding arrangement (102); in the full bridge circuit (137), first semiconductor switches (114, 130) are connected to a first DC supply lead (116) and second semiconductor switches (132, 136) to the other DC supply lead (122), said second switches being bidirectionally conductive of current in the switched-on state. The motor has an arrangement (172, 198, 188) for opening the first semiconductor switches (114, 130) and for closing the second semiconductor switches (132, 136) during a predetermined operating state. An arrangement (202) is provided for monitoring the direction of the current (i1, i2) which flows in the second semiconductor switches (132, 136) when the latter are conductive during the predetermined operating state.

    摘要翻译: 电子换向电动机具有转子(108),具有定子绕组装置(102)的定子和用于控制电流(I 1,I 2)的全桥电路(137) 在定子绕组装置(102)中; 在全桥电路(137)中,第一半导体开关(114,130)与第一直流电源引线(116)和第二半导体开关(132,136)连接到另一直流电源引线(122),所述第二开关 在接通状态下双向导通电流。 电动机具有用于打开第一半导体开关(114,130)并且用于在预定操作状态期间闭合第二半导体开关(132,136)的布置(172,198,188)。 提供了一种装置(202),用于监视在第二半导体开关(132,136)中流过的电流(i,1,i,2)的方向, 在预定的操作状态下是导电的。

    Electric Motor And Method Of Controllling Said Motor
    5.
    发明申请
    Electric Motor And Method Of Controllling Said Motor 审中-公开
    电动机及其控制方法

    公开(公告)号:US20080157707A1

    公开(公告)日:2008-07-03

    申请号:US11817406

    申请日:2006-02-28

    IPC分类号: H02P6/14 H02P6/18

    摘要: The invention relates to a sensorless electric motor and a method of controlling such an electric motor, which motor comprises a permanently magnetic rotor, a stator having at least one winding, and a power stage for influencing the current flowing through the winding. As a function of a predetermined commutation duration (T_K), a commutation period is defined, during which period the direction of the magnetic field generated by current flow through the winding is not modified, during which period a commutation completion operation (107) and a commutation initiation operation (109) take place, and which period starts at a first commutation instant (t_KN) and ends at a second commutation instant (t_KN+1); preferably, commutation timing is adjusted, based upon a value of induced voltage picked up at a currently non-energized one of the winding strands, during a plateau portion (108) of a winding voltage trace, located temporally between commutation instants.

    摘要翻译: 本发明涉及无传感器电动机和控制这种电动机的方法,该电动机包括永磁转子,具有至少一个绕组的定子和用于影响流过绕组的电流的功率级。 作为预定换向持续时间(T_K)的函数,定义了换向周期,在此期间,通过绕组的电流产生的磁场的方向不被修改,在此期间,换向完成操作(107)和 进行换向启动操作(109),并且哪个时段在第一换向时刻(t_K N N N)开始,并在第二换向时刻(t_K N + 1)结束。 优选地,在时间上位于换相时刻之间的绕组电压迹线的高原部分(108)期间,基于在当前未通电的绕组线圈拾取的感应电压的值来调整换向定时。

    Valve with bendable actuating element
    6.
    发明授权
    Valve with bendable actuating element 失效
    具有可弯曲致动元件的阀

    公开(公告)号:US06959911B2

    公开(公告)日:2005-11-01

    申请号:US10681333

    申请日:2003-10-09

    IPC分类号: F16K31/00 F15B13/00

    CPC分类号: F16K31/006

    摘要: A valve features a deflectable actuating element (1) that controls the movements of at least one actual sealing element (3) for opening and/or closing at least one sealing contour (6), and the actuating element is loaded via an elastic element (5) essentially perpendicularly relative to the direction of the deflection; and the longitudinal axis of the actuating element and the force applied by the elastic element are aligned in a position of the actuating element that is between its two extreme positions. The actuating element (1) is preferably an unilaterally loaded piezoelectric bending transducer, and the sealing element (3) is preferably a toggle that has the ability to swing around an axis arranged perpendicularly relative to the direction of the deflection of the actuating element (1).

    摘要翻译: 阀具有可偏转的致动元件(1),其控制用于打开和/或关闭至少一个密封轮廓(6)的至少一个实际密封元件(3)的运动,并且致动元件经由弹性元件 5)基本上相对于偏转方向垂直; 并且致动元件的纵向轴线和由弹性元件施加的力在致动元件的位于其两个极限位置之间的位置对准。 致动元件(1)优选地是单向负载的压电弯曲换能器,并且密封元件(3)优选地是具有绕相对于致动元件(1)的偏转方向垂直布置的轴线摆动的肘杆 )。

    Valve with unilaterally constrained piezoelectric bending element as actuating device
    7.
    发明授权
    Valve with unilaterally constrained piezoelectric bending element as actuating device 失效
    具有单向约束压电弯曲元件的阀作为致动装置

    公开(公告)号:US06945276B2

    公开(公告)日:2005-09-20

    申请号:US10461882

    申请日:2003-06-16

    摘要: Valve with a displaceable actuating device that controls the movements of at least one actual sealing element for opening and closing, and the actuating device is loaded with an elastic element essentially in a perpendicular direction relative to the direction of displacement, and the longitudinal axis of the actuating device and the force exercised by the elastic element are aligned in one position of the actuating device between its two extreme positions. In order to realize a valve that can be electrically switched using minimal currents and that is characterized, in particular, by its small construction size but that is still able to achieve large regulating distances, the actuating device is a unilaterally constrained piezoelectric bending element.

    摘要翻译: 具有可移动致动装置的阀,其控制用于打开和关闭的至少一个实际密封元件的运动,并且致动装置基本上在相对于位移方向的垂直方向上装载有弹性元件,并且该纵向轴线 致动装置和由弹性元件施加的力在致动装置的两个极限位置之间的一个位置对齐。 为了实现可以使用最小电流进行电气切换的阀门,特别是其特征在于其小的结构尺寸但仍然能够实现大的调节距离的致动装置是单方向约束的压电弯曲元件。