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公开(公告)号：US11626769B2
公开(公告)日：2023-04-11
申请号：US16605327
申请日：2018-04-18
申请人： Lenze Drives GmbH
发明人： Volker Grabs , Matthias Thesseling , Olaf Huebner
摘要： An electric machine may be an external rotor motor with a stator and a rotor surrounding the stator. The rotor may be mounted on bearings so as to be rotatable around an axis of rotation relative to the stator, where the mechanical forces transmitted by the bearings of the rotor may be absorbed at least in part by the stator. The stator may have a coil winding for generating a magnetic field, the coil winding being surrounded at least partially by a casting compound. At the output, the mechanical forces of the rotor or the device transmitted by the bearings and taken up by the stator may be introduced into the stator largely via the casting compound. The casting compound thus reduces induced vibrations.
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公开(公告)号：US11486793B2
公开(公告)日：2022-11-01
申请号：US16470623
申请日：2018-01-25
申请人： Lenze Drives GmbH
发明人： Tim-Oliver Ricke
IPC分类号： G01M15/02 , G07C3/14 , G05B19/042
摘要： An electric drive unit having an electric motor having a flange-mounted adapter that is attached to the electric motor and has a motor shaft extension for extending the motor shaft through the adapter. The electric drive unit has at least one sensor for measuring at least one operating variable of the electric motor and an evaluation unit for evaluating the operating variable(s) measured by the sensor(s). The sensor(s) and evaluation unit are arranged in and/or on the electric motor and/or adapter. The evaluation unit is designed to evaluate the measured operating variable(s) with respect to the need for maintenance and/or repair and to output a signal about the need for maintenance and/or repair via a signal transmission device for signaling the need for maintenance if the result of the evaluation of the operating variable(s) indicates the need for maintenance.
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3.发明授权公开(公告)号：US11005329B2
公开(公告)日：2021-05-11
申请号：US15768289
申请日：2016-10-11
申请人： Lenze Drives GmbH
摘要： An electric motor with a heat source is arranged on a shaft in a co-rotating manner, wherein a first and a second cooling fin arrangement interact in order to dissipate heat from the heat source to the outside.
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公开(公告)号：US10958125B2
公开(公告)日：2021-03-23
申请号：US15768416
申请日：2016-10-11
申请人： Lenze Drives GmbH
发明人： Jan Wettlaufer , Karsten Huebner , Martin Ehlich
摘要： A circuit board to be mounted in a non-drive end shield of an electric motor has a converter formed on the circuit board. The circuit board is divided into a central region and a number of toothed regions surrounding the central region, wherein planes of the toothed regions are bent with respect to a plane of the central region in a mounting position.
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5.发明授权公开(公告)号：US10778069B2
公开(公告)日：2020-09-15
申请号：US15575891
申请日：2016-05-11
申请人： Lenze Drives GmbH
发明人： Jan Wettlaufer , Karsten Huebner
摘要： A motor system includes a stator, a rotor, a number of power modules which each have planar contact faces for dissipating heat, a control device which is designed to actuate the power modules, a housing, wherein the stator and the rotor are arranged inside the housing, and at least one heat sink. The heat sink has a number of planar contact faces which are connected in a thermally conductive fashion to respectively corresponding contact faces of the power modules. The heat sink has regions for dissipating heat, wherein a coolant flows around the regions in order to dissipate heat.
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公开(公告)号：US09964155B2
公开(公告)日：2018-05-08
申请号：US14889508
申请日：2014-05-08
申请人： Lenze Drives GmbH
发明人： Tino Goetz , Ralf Guhl
CPC分类号： F16D1/0817 , F16D1/0847 , F16D1/0858 , F16D1/095
摘要： In the case of an arrangement with a hollow shaft, an input shaft partially contained in the hollow shaft, and a clamping device, the hollow shaft is connected to the input shaft by forces which are directed radially to the hollow shaft being introduced into the hollow shaft at at least three discrete introduction points arranged along a circumference of the hollow shaft.
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公开(公告)号：US20210399632A1
公开(公告)日：2021-12-23
申请号：US17268772
申请日：2019-08-07
申请人： LENZE DRIVES GMBH
摘要： A frequency converter includes: at least one bridge arm, wherein a shunt resistor is arranged in the bridge arm; an evaluation device having an input connection, the evaluation device being designed to evaluate a measurement signal which is present at the input connection and which is dependent on a voltage drop across the shunt resistor, in order to determine a measured variable; and a voltage peak suppression device, which is designed to short-circuit the input connection of the evaluation device when a voltage peak occurs at the shunt resistor.
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公开(公告)号：US20210152045A1
公开(公告)日：2021-05-20
申请号：US16605327
申请日：2018-04-18
申请人： Lenze Drives GmbH
发明人： Volker Grabs , Matthias Thesseling , Olaf Huebner
摘要： An electric machine may be an external rotor motor with a stator and a rotor surrounding the stator. The rotor may be mounted on bearings so as to be rotatable around an axis of rotation relative to the stator, where the mechanical forces transmitted by the bearings of the rotor may be absorbed at least in part by the stator. The stator may have a coil winding for generating a magnetic field, the coil winding being surrounded at least partially by a casting compound. At the output, the mechanical forces of the rotor or the device transmitted by the bearings and taken up by the stator may be introduced into the stator largely via the casting compound. The casting compound thus reduces induced vibrations.
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公开(公告)号：US10892701B2
公开(公告)日：2021-01-12
申请号：US16472387
申请日：2017-12-22
申请人： Lenze Drives GmbH
发明人： Andreas Tolksdorf , Dennis Steup
摘要： A drive system includes a three-phase motor having a shaft, a first three-phase stator winding which is to be connected to a three-phase AC voltage grid, a second three-phase stator winding which is to be connected to the three-phase AC voltage grid in such a way that a second stator rotating field rotating in opposition results with respect to a first stator rotating field which is generated by means of the first stator winding, and a rotor winding system which is mechanically coupled in a rotationally fixed manner to the shaft. The drive system further includes at least one inverter which is mechanically coupled in a rotationally fixed manner to the shaft and which is electrically coupled to the rotor winding system, wherein the at least one inverter is configured to generate actuation signals for the rotor winding system such that a first rotor rotating field and a second rotor rotating field rotating in opposition to the first rotor rotating field are generated. The at least one inverter is configured to generate the actuation signals for the rotor winding system solely depending on signals detected on the rotor side.
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公开(公告)号：US10811929B2
公开(公告)日：2020-10-20
申请号：US15529403
申请日：2015-11-23
申请人： Lenze Drives GmbH
摘要： A motor system includes: a stator; a rotor; a motor shaft, which is mechanically coupled for conjoint rotation with the rotor, and which defines a radial direction and an axial direction of the motor system; heat-generating components, in particular power semiconductors; a control device which is designed to control an operation of the motor system; and a housing. The housing has a first central chamber, wherein the stator, the rotor and the heat-generating components are arranged inside the first chamber, and wherein the heat-generating components are connected to an outer wall of the first chamber, and has a number of second chambers, wherein the second chambers radially surround the first chamber, and wherein the second chambers form closed channels for guiding cooling air.
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