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公开(公告)号：US10418868B1
公开(公告)日：2019-09-17
申请号：US15893383
申请日：2018-02-09
摘要： Embodiments of a modular motor assembly are disclosed. In some embodiments, a motor comprises a plurality of modular magnetic units, where each of the modular magnetic units includes at least one rotor and at least one stator. The motor further comprises a plurality of structural segments each adapted to support a stator of a corresponding one of the modular magnetic units, where each of the structural segments interlocks with a next structural segment to form a stack. A method of manufacturing a motor includes arranging a selected number of modular magnetic units, coupling the selected number of modular magnetic units to a shaft, coupling the selected number of modular magnetic units to respective structural segments, and forming electrical connections to apply three-phase voltage to stator windings of the modular magnetic units.
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公开(公告)号：US20180292234A1
公开(公告)日：2018-10-11
申请号：US16004224
申请日：2018-06-08
IPC分类号： G01D5/14
摘要： At least an output shaft angle associated with an output shaft is initialized to a known value where the output shaft is coupled to a motor shaft via a set of one or more gears. A direction of rotation associated with the motor shaft is determined using a plurality of discrete Hall sensors in the motor and the output shaft angle is updated using an incremental value and the direction of rotation.
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公开(公告)号：US20180290544A1
公开(公告)日：2018-10-11
申请号：US16008801
申请日：2018-06-14
发明人： Geoffrey Alan Long
摘要： One or more converters are selected from a plurality of converters to enable where there is a plurality of energy storage modules electrically connected together in series. Each converter is electrically connected to a corresponding energy storage module. The selected converters are enabled where in response to being enabled, an enabled converter converts an input, from its corresponding energy storage module, at a first voltage level into an output at a second voltage level and the outputs of the enabled converters are electrically combined to produce a combined output. The combined output is compared against a desirable operating region defined by an upper threshold and a lower threshold. In response to the combined output being outside of the desirable operating region, the number of enabled converters is adjusted.
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公开(公告)号：US10036654B1
公开(公告)日：2018-07-31
申请号：US15421038
申请日：2017-01-31
IPC分类号： G01D5/14
摘要： A first measurement of a magnet that rotates is received from a first set of Hall sensors in a first component. A second measurement is received from a second set of Hall sensors in a second component where the first component and the second component are in a plane that is parallel to an axis of rotation associated with the magnet. An angle associated with the magnet is determined based at least in part on the first measurement and the second measurement.
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公开(公告)号：US20190185140A1
公开(公告)日：2019-06-20
申请号：US16282186
申请日：2019-02-21
发明人： Geoffrey Alan Long
摘要： A lift fan includes a stator which is configured to output a magnetic field. The lift fan also includes a first housing which in turn includes a blade, a second housing, and a magnet array. The magnet array is coupled to either the first housing or the second housing and the housing, which is coupled to the magnet array, rotates in response to the magnet array responding magnetically to the magnetic field output by the stator.
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公开(公告)号：US20180191215A1
公开(公告)日：2018-07-05
申请号：US15398344
申请日：2017-01-04
发明人： Geoffrey Alan Long
CPC分类号： H02K1/28 , H02K1/2793 , H02K15/03 , H02K16/02
摘要： Techniques described here provide a rotor and a method of making a rotor. In an embodiment, a method of making a rotor includes forming a magnet array by assembling a plurality of magnets into the magnet array, providing pre-preg adjacent to the magnet array, co-curing the magnet array with the pre-preg, and magnetizing the magnet array subsequent to the formation of the magnet array.
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公开(公告)号：US09764833B1
公开(公告)日：2017-09-19
申请号：US15297033
申请日：2016-10-18
CPC分类号： B64C29/0025 , B64C2211/00 , B64D13/006 , B64D2013/0614
摘要： A rotor mounting boom assembly includes a rotor mounting boom releasably attachable to a wing of the personal aircraft, one or more vertical lift rotors, and one or more rotor controller assemblies. Controller assemblies for each rotor are positioned on the rotor mounting booms such that downwash from the rotor causes increased airflow across the controller assembly to cool the controller assembly components. A rotor controller enclosure includes an air inlet and an air outlet to allow airflow through the enclosure to cool the controller components. The air inlet is positioned relative to the path of the rotor blades such that the downwash from the rotor that flows into the air inlet is maximized. The structure of the enclosure includes features for increasing the airflow through the enclosure.
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公开(公告)号：US10350960B1
公开(公告)日：2019-07-16
申请号：US15838779
申请日：2017-12-12
发明人： Geoffrey Alan Long
IPC分类号： H01M10/663 , B60H1/00 , H01M10/613 , H01M10/625 , B64D27/24 , B64C27/02
摘要： A coupled battery and motor controller thermal management system is disclosed. In various embodiments, a motor controller and a heat sink are coupled thermally to a battery. At least a portion of waste heat generated by the motor controller is transferred to the thermal mass of the battery during at least a first mode of operation in which a relatively low amount of ambient air flows through the heat sink.
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公开(公告)号：US20180216964A1
公开(公告)日：2018-08-02
申请号：US15421038
申请日：2017-01-31
IPC分类号： G01D5/14
摘要： A first measurement of a magnet that rotates is received from a first set of Hall sensors in a first component. A second measurement is received from a second set of Hall sensors in a second component where the first component and the second component are in a plane that is parallel to an axis of rotation associated with the magnet. An angle associated with the magnet is determined based at least in part on the first measurement and the second measurement.
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公开(公告)号：US09783288B1
公开(公告)日：2017-10-10
申请号：US15372125
申请日：2016-12-07
CPC分类号： B64C27/322 , B64C29/0025 , B64C29/0091 , H01F7/0226 , H01F7/0247
摘要： A lift fan position lock mechanism is disclosed. In various embodiments, a position lock mechanism includes a ring structure having a first surface, the ring structure including one or more detents defined in the first surface of the ring structure. For each detent, the lock mechanism includes a stationary magnet coupled fixedly to the ring structure at a location adjacent to the detent. The lock mechanism further includes a rotating magnet assembly comprising a magnet of opposite magnetic polarity to at least one of the stationary magnets and a mechanical stop structure of a size and shape to fit into a corresponding detent and engage mechanically with a surface defining at least one extent of said corresponding detent when the rotating magnet assembly is in a locked position.
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