Filter circuit on an electric motor

    公开(公告)号:US11855494B2

    公开(公告)日:2023-12-26

    申请号:US17508687

    申请日:2021-10-22

    CPC classification number: H02K11/026 H02K17/30 H03H1/0007 H05K2201/0715

    Abstract: The disclosure relates to a filter circuit on an electric motor which has electrical connections at a connection end for connection to a supply voltage (U). The filter circuit consists of at least one capacitor bridge arranged between the connections of the electric motor for radio interference suppression. For increased electromagnetic compatibility (EMC), the filter circuit is arranged on a circuit board and held on the connection end of the electric motor. The circuit board has a capacitor bridge with interference suppression capacitors, which is connected between the electrical connections of the electric motor, wherein an interference suppression capacitor has a longitudinal axis between its electrical connections in the longitudinal direction. The interference suppression capacitors are arranged on the circuit board with their longitudinal axes aligned in different spatial directions.

    MOTOR
    3.
    发明申请
    MOTOR 审中-公开

    公开(公告)号:US20170257003A1

    公开(公告)日:2017-09-07

    申请号:US15358068

    申请日:2016-11-21

    Abstract: A motor, including: a rotational shaft, a rotor, a stator, a housing, a first end cover, and a second end cover. The first end cover includes: a cover body including a bottom surface and a top surface, a bearing cavity, and a plurality of first bosses. The rotor is mounted on the rotational shaft; the stator is nested and installed inside the housing. The rotor is nested inside the stator; the first end cover and the second end cover are disposed on a rear end and a front end of the housing, respectively. The bearing cavity is disposed in the middle of the bottom surface of the cover body. The first bosses are circumferentially disposed at intervals on the top surface of the cover body. Outer side surfaces of the first bosses are located on a circle having a circle center coincident with the center of the cover body.

    Motor endshield with capacitor retention structure
    4.
    发明授权
    Motor endshield with capacitor retention structure 有权
    电机末端带电容器保持结构

    公开(公告)号:US08587169B2

    公开(公告)日:2013-11-19

    申请号:US13157992

    申请日:2011-06-10

    Inventor: Craig E. Wallace

    CPC classification number: H02K17/30 H02K5/15 H02K5/1732 H02K5/20

    Abstract: An electric motor endshield includes a plate and a capacitor-mounting assembly particularly suitable for secure attachment to a capacitor. The mounting assembly includes a lug presenting a capacitor-engaging projection spaced outwardly from the endshield plate. The capacitor-engaging projection presents an inner face in an opposed relationship to the endshield plate to define a capacitor-retaining space therebetween. A peripheral lip of the capacitor housing is received within the capacitor-retaining space, and the housing lip engages the capacitor-engaging projection. The mounting assembly provides secure attachment of the capacitor to the endshield, thereby preventing inadvertent detachment of the capacitor during operation of motor.

    Abstract translation: 一种电动机罩罩包括一个板和一个电容器安装组件,特别适用于牢靠地连接到电容器上。 安装组件包括具有与端盖板间隔开的电容器接合凸起的凸耳。 电容器接合突起呈现与端板相对的内表面,以在其间限定电容器保持空间。 电容器壳体的外围唇缘容纳在电容器保持空间内,并且壳体唇缘接合电容器接合突起。 安装组件提供电容器到端盖的牢固附接,从而防止在电动机操作期间电容器的意外脱离。

    Electric motor and switch for electric motor having arc barrier
    5.
    发明授权
    Electric motor and switch for electric motor having arc barrier 失效
    具有电弧屏障的电动马达和电动机开关

    公开(公告)号:US08305028B2

    公开(公告)日:2012-11-06

    申请号:US12720418

    申请日:2010-03-09

    CPC classification number: H02K17/30 H01H1/26 H02P1/44

    Abstract: A switch for an electric motor has a switch arm comprising a lever and an arc barrier formed integrally with the lever. The switch has first and second electrical contacts. The switch arm and second electrical contact are moveable relative to the first contact between an open position and a closed position. The arc barrier is positioned adjacent the first contact in the closed position. The arc barrier limits the risk of electrical arcing associated with the electrical contacts. The switch is suitable for use in an electric induction motor. For example, the switch can be adapted to de-energize auxiliary start windings when an electric induction motor is up to speed and/or to provide a signal indicating the motor is operating.

    Abstract translation: 用于电动机的开关具有开关臂,该开关臂包括与所述杠杆一体形成的杠杆和弧形阻挡件。 开关具有第一和第二电触点。 开关臂和第二电接触件可相对于打开位置和关闭位置之间的第一接触件移动。 在闭合位置,电弧屏障定位在第一触点附近。 电弧屏障限制了与电触点相关联的电弧的风险。 该开关适用于电动感应电动机。 例如,当感应电动机达到速度和/或提供指示电动机正在运行的信号时,该开关可适于对辅助启动绕组断电。

    Sensorless control induction motor rotor slot shapes and fabrication methods
    7.
    发明授权
    Sensorless control induction motor rotor slot shapes and fabrication methods 失效
    无传感器控制感应电动机转子槽形状及制作方法

    公开(公告)号:US06515395B1

    公开(公告)日:2003-02-04

    申请号:US09433760

    申请日:1999-11-04

    Abstract: A method for fabricating an induction motor rotor lamination includes using an indexed notching die to punch a plurality of closed rotor slots at -different distances from a center point of rotation by punching a first rotor slot, changing the position of a center point of the rotor lamination with respect to the notching die, and punching a second rotor slot. In another embodiment, a plurality of rotor slit patterns are punched using a variable depth indexed notching die including at least two rotor slit punching portions, one being deeper than another, by punching a first rotor slit pattern, changing the depth of closure of the notching die, and punching a second rotor slit pattern with the second rotor slit pattern having a different number of rotor slits than the first. In another embodiment, each rotor slit is open to and off center with respect to its respective rotor slot, and rotor laminations are stacked by positioning some of the rotor laminations in an orientation with is turned over and rotated with respect to others of the rotor laminations; filling the rotor slots and the rotor slits with cage material; and machining outer surfaces of the rotor laminations. In another embodiment, uniformly spaced identical rotor slots are punched and modulation is created by punching a contoured outside diameter or by inserting slot wedges of molded magnetic material.

    Abstract translation: 一种用于制造感应电动机转子叠片的方法,包括使用分度开槽模具,通过冲压第一转子槽,在与旋转中心点不同的距离上冲压多个闭合的转子槽,改变转子中心点的位置 相对于切口模具进行层压,并冲压第二转子槽。 在另一个实施例中,使用可变深度指数的切口模具冲切多个转子狭缝图案,所述切割凹口包括至少两个转子狭缝冲压部分,一个比另一个更深,通过冲压第一转子狭缝图案,改变开槽的闭合深度 模具,并且冲压第二转子狭缝图案,其中第二转子狭缝图案具有与第一转子狭缝图案不同数量的转子狭缝。 在另一个实施例中,每个转子狭缝相对于其相应的转子槽开放至中心,并且转子叠片通过将一些转子叠片定位成相对于转子叠片的其它部分翻转并旋转的方向而被堆叠 ; 用保持架材料填充转子槽和转子槽; 并加工转子叠片的外表面。 在另一个实施例中,打孔均匀间隔相同的转子槽,并通过冲压成形外径或通过插入模制磁性材料的槽楔形成调制。

    Submersible motor unit
    8.
    发明授权
    Submersible motor unit 有权
    潜水电机单元

    公开(公告)号:US06359353B1

    公开(公告)日:2002-03-19

    申请号:US09621094

    申请日:2000-07-21

    CPC classification number: H02K17/30 H02K5/132 H02K5/225

    Abstract: A submersible motor unit is used to drive a pump and is submerged with the pump in liquid (water). The motor unit includes a tubular housing member and a tubular inner member which is enclosed by and disposed in a coaxial relationship with the tubular housing member. A stator is disposed in a stator chamber formed between the tubular inner member and the tubular housing member. A rotor is disposed in a rotor chamber disposed within the inner member. End walls close opposite ends of the tubular housing member and the tubular inner member. An annular capacitor is disposed in the stator chamber in an axially spaced apart relationship with the stator. The capacitor extends around the rotor chamber. A body of potting compound is disposed in the stator chamber and at least partially encloses the stator and the capacitor.

    Abstract translation: 潜水电机单元用于驱动泵,并将泵浸入液体(水)中。 马达单元包括管状壳体构件和管状内部构件,该管状内部构件与管状壳体构件封闭并且与管状壳体构件以同轴的关系布置。 定子被布置在形成在管状内部构件和管状壳体构件之间的定子室中。 转子设置在设置在内部构件内的转子室中。 端壁靠近管状壳体构件和管状内部构件的相对端部。 环形电容器以与定子轴向隔开的关系设置在定子室中。 电容器围绕转子室延伸。 一组灌封料置于定子室中,并至少部分包围定子和电容器。

    Hybrid-secondary uncluttered induction machine
    9.
    发明授权
    Hybrid-secondary uncluttered induction machine 失效
    混合二次整流感应电机

    公开(公告)号:US06310417B1

    公开(公告)日:2001-10-30

    申请号:US09475591

    申请日:1999-12-30

    Applicant: John S. Hsu

    Inventor: John S. Hsu

    CPC classification number: H02K17/24 H02K17/30 H02P6/005

    Abstract: An uncluttered secondary induction machine (100) includes an uncluttered rotating transformer (66) which is mounted on the same shaft as the rotor (73) of the induction machine. Current in the rotor (73) is electrically connected to current in the rotor winding (67) of the transformer, which is not electrically connected to, but is magnetically coupled to, a stator secondary winding (40). The stator secondary winding (40) is alternately connected to an effective resistance (41), an AC source inverter (42) or a magnetic switch (43) to provide a cost effective slip-energy-controlled, adjustable speed, induction motor that operates over a wide speed range from below synchronous speed to above synchronous speed based on the AC line frequency fed to the stator.

    Abstract translation: 整体二次感应电机(100)包括安装在与感应电机的转子(73)相同的轴上的整流式旋转变压器(66)。 转子(73)中的电流与变压器的转子绕组(67)中的电流电连接,该电流不与定子次级绕组(40)电连接,而是磁耦合。 定子次级绕组(40)交替地连接到有效电阻(41),AC源逆变器(42)或磁性开关(43),以提供经济有效的滑动能量控制的可调速度感应电动机,其操作 基于馈送到定子的交流线路频率,从低于同步速度到高于同步速度的宽速度范围。

    Fan with improved electric motor and mounting
    10.
    发明申请
    Fan with improved electric motor and mounting 有权
    风扇具有改进的电动机和安装

    公开(公告)号:US20010018027A1

    公开(公告)日:2001-08-30

    申请号:US09850450

    申请日:2001-05-07

    Inventor: Yung Chen

    Abstract: A household fan with motor and motor housing for shielding the motor. The electric motor is preferably a four-pole permanent-split capacitor motor with a narrow profile enabling it to fit within a narrow box fan, the motor having a stator including a core of stacked laminations. A first outermost lamination defines a first supporting surface, and a second outermost lamination defines a second supporting surface on which the front and rear casings are supported. Copper windings are wound about the core. A rotor has an output shaft which passes through a central region of the core. The front and rear casings are generally dome-shaped. Each casing has a circumferential side wall and a vented end wall. The front casing has a recessed area around the opening for the output shaft such that a portion of the bladed propeller assembly protrudes within the recessed area, allowing for a narrow profile design. Radially extending legs allow for mounting on parallel brackets along a rear grill of the fan.

    Abstract translation: 具有电机和电机外壳的家用风扇,用于屏蔽电机。 电动机优选是四极永久分割电容器电动机,其具有窄的轮廓,使其能够装配在窄的箱形风扇内,该电动机具有定子,该定子包括堆叠的叠片的芯。 第一最外层压件限定第一支撑表面,并且第二最外层叠件限定第二支撑表面,前壳体和后壳体在该第二支撑表面上被支撑。 铜绕组缠绕在芯上。 转子具有穿过芯的中心区域的输出轴。 前后壳通常为圆顶形。 每个壳体具有周向侧壁和通风端壁。 前壳体具有用于输出轴的开口周围的凹陷区域,使得叶片式螺旋桨组件的一部分在凹陷区域内突出,允许窄的轮廓设计。 径向延伸的腿允许沿着风扇的后部格栅安装在平行支架上。

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