Method of controlling a physical variable in an electronically commutated motor, and motor for carrying out said method
    1.
    发明授权
    Method of controlling a physical variable in an electronically commutated motor, and motor for carrying out said method 失效
    电子换向马达中的物理变量的控制方法以及执行所述方法的马达

    公开(公告)号:US06956343B2

    公开(公告)日:2005-10-18

    申请号:US10433193

    申请日:2001-12-21

    IPC分类号: H02P6/15 H02P6/28 H02P7/50

    CPC分类号: H02P6/15 H02P6/28 H02P2209/07

    摘要: In a method for controlling a physical variable in an electronically commutated motor, current is supplied to the stator winding arrangement (102) of the motor in the form of current blocks. The interval (BW) between the switch-on command and switch-off command for controlling those current blocks, i.e. the length (BW) of the control signals, is influenced by a control apparatus, and the effective current value of those current blocks is influenced by setting a pulse duty factor (pwm). The length of the control signals is limited in both directions. If a control signal becomes shorter than a specified lower limit, the pulse duty factor (pwm) is decreased, so that the effective value of the current falls and the length (BW) of the current blocks is increased by the control system. If a control signal becomes longer than a specified upper limit, the pulse duty factor is increased, so that the effective value of the current rises and the length of the current blocks decreases in compensatory fashion.

    摘要翻译: 在用于控制电子换向马达的物理变量的方法中,以电流块的形式将电流提供给马达的定子绕组装置(102)。 用于控制这些当前块的接通命令和关断命令之间的间隔(BW),即控制信号的长度(BW)受到控制装置的影响,并且这些当前块的有效电流值是 受脉冲占空系数(pwm)的影响。 控制信号的长度在两个方向都受到限制。 如果控制信号变得短于指定的下限,则脉冲占空比(pwm)减小,使得当前块的有效值下降,并且通过控制系统增加当前块的长度(BW)。 如果控制信号变得长于指定的上限,则脉冲占空因数增加,使得电流的有效值上升,并且当前块的长度以补偿的方式减小。

    Method for commutating an electronically commutated motor and motor for carrying out said method
    2.
    发明授权
    Method for commutating an electronically commutated motor and motor for carrying out said method 失效
    一种用于实现所述方法的电子换向马达和马达换向的方法

    公开(公告)号:US07015668B2

    公开(公告)日:2006-03-21

    申请号:US10503641

    申请日:2003-01-28

    申请人: Hansjörg Berroth

    发明人: Hansjörg Berroth

    IPC分类号: H01R39/46

    CPC分类号: H02P6/15

    摘要: An improved method of commutating an electronically commutated motor (20) is disclosed. The motor has a positive (34) and a negative connecting lead (36), a stator having at least one winding phase (22), a permanent-magnet rotor (26), a rotor-position sensor (28) for producing a rotor position signal (u1, u2), and a full bridge circuit (78), comprising a pair of Metal Oxide Semiconductor Field Effect Transistors (MOSFETs) coupled to each end of each winding phase (22). In order to prevent current shoot-through and prolong the service life of the MOSFETs, without employing a microprocessor, a respective-comparator (90, 90′, 92, 92′) is coupled to the gate of each MOSFET, in order to assure that the MOSFET is switched ON and OFF at an optimum time.

    摘要翻译: 公开了一种改进电子换向马达(20)换向的方法。 电机具有正极(34)和负极连接引线(36),定子具有至少一个绕组相(22),永磁转子(26),转子位置传感器(28),用于产生转子 位置信号(u 1,u 2)和全桥电路(78),包括耦合到每个绕组相(22)的每一端的一对金属氧化物半导体场效应晶体管(MOSFET)。 为了防止电流突发并延长MOSFET的使用寿命,不使用微处理器,相应的比较器(90,90',92,92')耦合到每个MOSFET的栅极,以确保 MOSFET在最佳时间切换为ON和OFF。

    Electronically commutated motor
    3.
    发明授权
    Electronically commutated motor 有权
    电子换向电机

    公开(公告)号:US07859145B2

    公开(公告)日:2010-12-28

    申请号:US11668508

    申请日:2007-01-30

    IPC分类号: H02K1/04

    摘要: For many applications, it is desirable to use fans which weigh less than 30 grams and are driven by electric motors not more than a few centimeters in size. Mass-producing products this small, which nevertheless must be extremely reliable, poses unique manufacturing challenges, which are best overcome by an improved structure which is susceptible to automation. Preferably, the fan motor is electronically commutated and has an internal stator (50) and an external rotor (22) supported on a central rotor shaft (34). The shaft is journaled within a bearing tube (70) supporting first and second rotor bearings (72, 76). By injection-molding the bearing tube (70) with first and second axial extensions (90′, 90″), the extensions can hold the bearings in place and insure uniform manufacturing quality and a desirably long service life. One of the extensions can also be shaped to abut against a circuit board (46) which supports components which control commutation.

    摘要翻译: 对于许多应用,希望使用重量小于30克的风扇,并由不超过几厘米尺寸的电动机驱动。 批量生产这种小型产品,但是必须非常可靠,构成了独特的制造挑战,最好由易于自动化的改进结构来克服。 优选地,风扇电动机被电子换向并且具有支撑在中心转子轴(34)上的内部定子(50)和外部转子(22)。 轴支承在支撑第一和第二转子轴承(72,76)的支承管(70)内。 通过用第一和第二轴向延伸部(90',90“)注射成型轴承管(70),延伸部可将轴承保持就位并确保均匀的制造质量和期望的长的使用寿命。 延伸部之一也可以成形为抵靠支撑控制换向的部件的电路板(46)。

    Method for controlling the commutation of an electronically commutated motor
    4.
    发明授权
    Method for controlling the commutation of an electronically commutated motor 有权
    用于控制电子换向马达的换向的方法

    公开(公告)号:US06825627B2

    公开(公告)日:2004-11-30

    申请号:US10433129

    申请日:2003-05-29

    IPC分类号: H02P750

    CPC分类号: H02P6/14 H02P2209/07

    摘要: In a method for commutating an electronically commutated motor, a predictive calculation is made of a first time span that the rotor will need in order to pass through a specified rotation angle that lies between a first rotational position (∂0) and a later second rotational position (∂1) at which a switching operation is to be effected in the motor. Upon actual passage through the first rotational position, a reference time is identified and stored. The time difference between the present time and the stored reference time is then monitored repeatedly and compared to the first time span; and when a specified relationship exists between the time difference and the first time span, the switching operation is performed.

    摘要翻译: 在一种用于换向电子换向电动机的方法中,预测计算转子将需要的第一时间跨度,以便通过位于第一旋转位置(∂0)和稍后的第二旋转 位置(∂1),其中在电动机中进行切换操作。 在实际通过第一旋转位置时,识别并存储参考时间。 然后重复监视当前时间和存储的参考时间之间的时间差,并将其与第一时间段进行比较; 并且当在时间差和第一时间跨度之间存在指定的关系时,执行切换操作。

    Assembly for transporting fluids
    5.
    发明授权
    Assembly for transporting fluids 有权
    运输液体的装配

    公开(公告)号:US07780422B2

    公开(公告)日:2010-08-24

    申请号:US11576881

    申请日:2005-09-02

    申请人: Hansjörg Berroth

    发明人: Hansjörg Berroth

    IPC分类号: F04B17/03 H02K49/00

    摘要: An arrangement for pumping fluids has an electronically commutated external-rotor motor. The latter has a stator arranged on a stator carrier and a rotor joined to a first permanent magnet, which rotor is rotatably journaled, in a bearing tube, with respect to the stator. This bearing tube is arranged, at least partly, radially inside the stator carrier. The first permanent magnet is arranged in an annular interstice between the stator carrier and the bearing tube. A fluid pump has a pump wheel arranged rotatably inside a pump housing, which wheel is joined to a second permanent magnet, a liquid-tight but magnetically transparent partition being provided between the first permanent magnet and the second permanent magnet. This keeps fluid away from the motor wiring. The first permanent magnet forms, by coaction with the second permanent magnet, a magnetic coupling to the fluid pump, which magnetic coupling automatically produces a rotation of the pump wheel as a result of rotation of the motor rotor.

    摘要翻译: 用于泵送流体的布置具有电子换向的外转子马达。 后者具有定子,其布置在定子载体上,转子与相对于定子的支承管中的第一永久磁铁接合,所述第一永磁体可旋转地轴颈支承。 该轴承管至少部分地布置在定子托架的径向内部。 第一永久磁铁布置在定子托架和轴承管之间的环形空隙中。 流体泵具有可旋转地布置在泵壳体内的泵轮,该轮毂连接到第二永磁体,在第一永磁体和第二永磁体之间设置有液密但透明的隔板。 这使流体远离电机接线。 第一永磁体通过与第二永磁体的共同作用而形成与流体泵的磁耦合,该磁耦合由于电机转子的旋转自动地产生泵轮的旋转。

    Electronically commutated motor
    6.
    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。

    Control circuit for an electronically commutated motor
    7.
    发明授权
    Control circuit for an electronically commutated motor 有权
    电子换向电机的控制电路

    公开(公告)号:US07688011B2

    公开(公告)日:2010-03-30

    申请号:US11814172

    申请日:2006-01-17

    IPC分类号: H02P1/00

    CPC分类号: H02P6/15 H02P6/28

    摘要: A control circuit for an electronically commutated motor (120), having a power stage (122) that comprises at least two semiconductor switches (216, 218) to influence the motor current. The semiconductor switches are controllable by way of commutation signals. The control circuit comprises a current measuring element (170) to make available a motor current control variable (I) dependent on the motor current, a base diode (240) that is arranged in series with the current measuring element and between the current measuring element and the at least two semiconductor switches, and a motor current setting element (180) with which the commutation signals can be influenced as a function of the motor current control variable.

    摘要翻译: 一种用于电子换向电动机(120)的控制电路,具有包括至少两个半导体开关(216,218)的功率级(122)以影响电动机电流。 半导体开关可通过换向信号控制。 控制电路包括电流测量元件(170),以根据电机电流提供电动机电流控制变量(I);基极二极管(240),其与电流测量元件串联布置,并且在电流测量元件 和所述至少两个半导体开关以及电动机电流设定元件(180),所述换向信号可以作为所述电动机电流控制变量的函数而被影响。

    Method of controlling the commutation in an electronically commutated motor, and an electronically commutated motor for carrying out said method
    8.
    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。