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公开(公告)号：US10697467B2
公开(公告)日：2020-06-30
申请号：US16122153
申请日：2018-09-05
发明人： Christian Froh , Michael Mauss
摘要： A fan wheel has a hub cup and a plurality of blades which are arranged on the hub cup and extend radially outward from an outer wall of the hub cup which is in particular at least substantially cylindrical. Each blade has a leading edge and a trailing edge, wherein for at least one blade, an axial unit depth z*(t) of the blade has an aperiodically wave-like shape. A radiator fan module has a fan wheel of the type described above, and the fan wheel can be used in a motor vehicle.
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公开(公告)号：US10320273B2
公开(公告)日：2019-06-11
申请号：US15501323
申请日：2015-08-12
IPC分类号： H02K23/36 , H02K23/30 , H02K15/095 , H02K23/26 , H02K23/28 , H02K23/34 , H01R39/32 , H01R43/06 , H02K13/00 , H02K13/04 , H02K15/00
摘要： A brush-commutated direct-current motor comprises a stator with a plurality of exciter poles, a rotor with a plurality of pole teeth, which is rotatable relative to the stator about an axis of rotation, grooves arranged between the pole teeth, and coil windings arranged on the pole teeth and a commutator which is arranged on the rotor and a plurality of lamellae to which the coil windings are connected. For manufacturing such direct-current motor the coil windings are arranged on the pole teeth in winding cycles, in each of which a coil winding is wound onto each pole tooth. It is provided that on each pole tooth a first coil winding wound around the pole tooth in a first winding direction and a second coil winding wound around the pole tooth in a second winding direction opposite to the first winding direction are arranged.
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公开(公告)号：US10211772B2
公开(公告)日：2019-02-19
申请号：US15677404
申请日：2017-08-15
发明人： Johannes Schwarzkopf
摘要： A method for operating an electric machine with a power source, an electric motor, and an intermediary power converter, in which an input current of the power source is converted to a multi-phase output current for the electric motor by a pulse width modulated control of a number of semiconductor switches of the converter, wherein the or each pulse is generated at a first point in time and terminated after a pulse duration at a second point in time, in which for each alternating current component, which is generated in the course of the pulse-width-modulated driving of the semiconductor switches in an intermediate circuit of the power source, a frequency spectrum is determined, and in which the pulse durations of the pulses of the pulse width modulated control can be set such that the sum of the frequency spectra of the alternating current components is minimal.
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公开(公告)号：US10208853B2
公开(公告)日：2019-02-19
申请号：US15055825
申请日：2016-02-29
发明人： Stephan Roos , Martin Pondelek
摘要： A motor assembly has an electric motor with a motor housing and an electronics unit. A first housing shell is formed as a motor carrier and has the motor housing fastened to it. A second housing shell is in the form of a cooling cover. An electronics carrier is arranged in sandwich-like fashion between the cooling cover and the motor carrier. The electronics carrier has, at the cooling cover side, a first, circumferentially encircling seal which seals off a first contact edge formed between the electronics carrier and the cooling cover and the electronics carrier has, at the motor carrier side, a second, circumferentially encircling seal which seals off a second contact edge formed between the electronics carrier and the motor carrier.
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公开(公告)号：US10008913B2
公开(公告)日：2018-06-26
申请号：US14890139
申请日：2014-05-13
发明人： Robert Hessdoerfer
CPC分类号： H02K23/36 , H02K3/28 , H02K15/09 , H02K23/023 , H02K23/38
摘要： A brush-commutated direct-current motor comprises a stator which is fitted with a plurality of field poles, a rotor which can rotate in relation to the stator about a rotation axis and which has a plurality of pole teeth, a plurality of windings, wherein a plurality of windings are arranged on each pole tooth, a commutator which is arranged on the rotor and has a plurality of lamellas, wherein each winding is connected to one of the lamellas by means of a first winding arm and is connected to another of the lamellas by means of a second winding arm, and a plurality of short-circuiting links which each electrically connect two windings to one another and to this end are each arranged on at least two lamellas of the commutator. The plurality of windings of the plurality of pole teeth are formed by a plurality of wire turns.
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6.发明授权公开(公告)号：US09954421B2
公开(公告)日：2018-04-24
申请号：US15055812
申请日：2016-02-29
发明人： Stephan Roos
IPC分类号： H02K11/00 , H02K21/12 , G01D5/14 , H02K11/215 , H02K7/00
CPC分类号： H02K11/215 , H02K7/003
摘要： An electrical machine is particularly suited as an electric motor of a motor vehicle. The machine has a rotor mounted rotatably by way of a rotor shaft and a position emitter with a rotationally fixed sensor unit and with a sensor emitter fixed relative to the rotor shaft. The emitter is an injection molding with an emitter head receiving a magnet, in particular a magnetic dipole, and with a joint shank. Alternatively, it is provided, together with the magnet on the emitter head side, with an plastic over-molding forming the joint shank. The joint shank is joined to the rotor shaft on the face side of a shaft end by form fit, forming a press fit or an interference fit.
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公开(公告)号：US20180043447A1
公开(公告)日：2018-02-15
申请号：US15677584
申请日：2017-08-15
发明人： Johannes SCHWARZKOPF
摘要： A method for operating an electric machine with a power source and with an electric motor and with an intermediary power converter, wherein an input current of the power source is converted into a multi-phase output current for the electric motor by means of a pulse width modulated control of a plurality of semiconductor switches of the converter, wherein during each period of control, for at least one phase, a pulse with a pulse duration is generated during a period duration, wherein in a period, a pulse is divided into a leading first half-pulse and a trailing second half-pulse with in each case half a pulse duration, and wherein the first half-pulse with a first displacement time and the second half-pulse with a second displacement time are mutually shifted in time within the period duration of the period.
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公开(公告)号：US09890686B2
公开(公告)日：2018-02-13
申请号：US15155730
申请日：2016-05-16
发明人： Uwe Klippert , Christoph Otto
CPC分类号： F01P7/14 , F01P5/10 , F01P5/12 , F01P2005/125 , F01P2007/146 , F04D1/00 , F04D15/0011 , F04D15/0016 , F04D29/22 , F04D29/4293
摘要： An electrically motorized coolant pump includes a pump housing, a pump impeller being driven in a pump chamber, two suction-side intake ducts and a pressure-side outflow duct for the coolant. A control actuator that can be hydraulically actuated in response to a demand for coolant is disposed in a housing section of the pump housing between the suction side and the pressure side and the control actuator is coupled to a control element so as to open and close the intake ducts.
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公开(公告)号：US09841074B2
公开(公告)日：2017-12-12
申请号：US14658665
申请日：2015-03-16
发明人： Stephan Roos
CPC分类号： F16D66/00 , B60T7/085 , B60T7/107 , B60T13/746 , F16D2066/005
摘要： An actuator for a motor vehicle functional unit includes a force transmission unit transmitting an actuating force to an actuating member and being displaced by a measuring travel in a force transmission direction. A force measurement device detects an actual value of the actuating force and includes a spring acting in the force transmission direction, having resilient action counter to which the force transmission unit is displaced and being tensioned by the actuating force over a resilient excursion, a micro switch having smaller switching travel than the measuring travel and being actuated upon displacement of the force transmission unit if the actuating force reaches the actual value, and a stop element for actuating the switch. The switch or element are coupled to or fixed relative to the force transmission unit and the switch and/or element are resiliently supported to compensate for a difference between the switching and measuring travels.
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公开(公告)号：US09722471B2
公开(公告)日：2017-08-01
申请号：US14490729
申请日：2014-09-19
发明人： Peter Klingler , Maik Brumme
摘要： An electric drive contains an electric motor for generating a driving force and a transmission for transmitting the driving force. The electric motor has a motor housing, a rotor arranged in the motor housing, and a motor shaft which bears the rotor. The transmission has at least two transmission elements which are coupled in terms of the transmission of force. The electric drive furthermore contains a drive housing for accommodating the electric motor and the transmission. Moreover, the motor shaft is mounted by at least a first radial bearing and a second radial bearing and braced transverse to its axis of rotation. The second radial bearing being arranged radially offset to the axis of rotation.
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