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公开(公告)号：US20210226512A1
公开(公告)日：2021-07-22
申请号：US16745419
申请日：2020-01-17
Applicant: LCDRIVES CORP.
Inventor： Dylan BROOMFIELD , Russel Hugh Marvin , Matthew Honickman
Abstract: A rotary electric machine includes a stator extending along an axis and having teeth arranged about the axis. The teeth are circumferentially spaced apart by slots. Conductors extend around the teeth and through the slots. The conductors are electrically connected to one another to form phases. Cooling devices are provided in the slots. Each cooling device is fluidly connected to an inlet tube for supplying cooling fluid to the cooling device and an outlet tube for removing cooling fluid from the cooling device. A manifold includes a first cooling channel fluidly connected to each inlet tube and a second cooling channel fluidly connected to each outlet tube such that all the cooling devices in the machine are fluidly connected in parallel.
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公开(公告)号：US10361650B2
公开(公告)日：2019-07-23
申请号：US15790561
申请日：2017-10-23
Applicant: LCDRIVES CORP.
Inventor： Russel Hugh Marvin , David H. Leach
Abstract: One example includes a half-bridge switching circuit system. The system includes a first plurality of switches arranged between a first rail voltage and an output on which an output voltage is provided and a second plurality of switches arranged between a second rail voltage and the output, the first and second pluralities of switches being controlled via a plurality of switching signals. The system also includes a plurality of flying capacitors arranged to interconnect the first and second pluralities of switches, and further includes a plurality of snubber circuits that are each arranged in parallel with a respective one of the plurality of flying capacitors, the first plurality of switches, and the second plurality of switches.
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公开(公告)号：US20210226490A1
公开(公告)日：2021-07-22
申请号：US16747223
申请日：2020-01-20
Applicant: LCDRIVES CORP.
Inventor： RUSSEL HUGH MARVIN , MATTHEW HONICKMAN , DYLAN BROOMFIELD
Abstract: A rotor stack for connection to a shaft of a rotary electric machine includes a series of platters each centered about a centerline and including an opening for receiving the shaft such that the platters are stacked along the shaft. Passages extend through the platter and are arranged about the centerline. Permanent magnets are positioned in the passages. Hubs associated with the platters mechanically connect each of the platters to the shaft.
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公开(公告)号：US10770953B2
公开(公告)日：2020-09-08
申请号：US13855801
申请日：2013-04-03
Applicant: LCDrives Corp.
Inventor： Russel Hugh Marvin
Abstract: A rotary electric machine includes a stator having a circumferentially spaced series of axially extending teeth defining winding slots therebetween. Stator windings are at least partially disposed in each winding slot and electrically connected to form a plurality of phases. One or more slots contain the same magnitude of current at substantially all times for each phase. Structure defines a plurality of elongated coolant passageways disposed in each winding slot. A subset of the coolant passageways contained in the slots for a single phase is an even number. Fluid flows in one direction for half of the subset of coolant passageways and in the opposite direction for the other half of the subset of coolant passageways. At least two of the coolant passageways in the machine are fluidly connected in parallel. At least one of the coolant passageways is located circumferentially between two windings in the same slot.
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公开(公告)号：US11251681B2
公开(公告)日：2022-02-15
申请号：US15394522
申请日：2016-12-29
Applicant: LCDRIVES CORP.
Inventor： Russel H. Marvin , Dylan Broomfield , David Leach
Abstract: A method for securing metallic first and second parts together includes positioning filler metal along an interface between the first and second parts. The first and second parts are inserted into a fixture such that at least one of the first and second parts engages the fixture. The fixture is heated with at least one electrical heating element to heat the filler metal by thermal conduction above a melting point of the filler metal and form metallurgical bonds between the filler metal and the first and second parts. The melted filler metal is cooled to join the first and second parts together.
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Patent Agency Ranking
公开(公告)号：US20210180729A1
公开(公告)日：2021-06-17
申请号：US16711517
申请日：2019-12-12
Applicant: LCDRIVES CORP.
Inventor： MATTHEW HONICKMAN , RYAN W. LOAR
Abstract: An assembly includes at least one member having first and second ends. A dual metal adapter for connecting to the at least one member includes an inner tube for receiving and contacting the first end of the at least one member and being formed from a first metal having a first resistivity. An outer tube extends over the inner tube and is secured thereto. The outer tube is formed from a second metal having a second resistivity greater than the first resistivity. The first end of the at least one member is metallurgically bonded to the inner tube.
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公开(公告)号：US09362785B2
公开(公告)日：2016-06-07
申请号：US13670423
申请日：2012-11-06
Applicant: LCDrives Corp.
Inventor： Russel H. Marvin , Thomas Johnson
Abstract: A permanent magnet motor, generator or the like that is constructed with a concentrated winding using a separate tooth. This tooth is preloaded in such a way to achieve high structural rigidity and good magnetic performance.
Abstract translation: 永磁电动机，发电机等，其使用单独的齿构成集中绕组。 该齿以这样的方式被预先加载，以实现高结构刚性和良好的磁性能。
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公开(公告)号：US20220407398A1
公开(公告)日：2022-12-22
申请号：US17349082
申请日：2021-06-16
Applicant: LCDRIVES CORP.
Inventor： Eric SCHUMAN , David H. LEACH , Matthew HONICKMAN , Dylan BROOMFIELD , Eric M. FORREST , Russel H. MARVIN
Abstract: One example includes a rotary electric machine. The device includes at least one sensor. Each of the at least one sensor can be configured to provide a sensor signal in a first data format, the sensor signal providing an indication of a respective one of a plurality of operational characteristics of the rotary electric machine. The device also includes a programmable interface configured to receive the sensor signal from each of the at least one sensor and to translate the first data format associated with each of the at least one sensor into a second data format associated with a respective type of sensor corresponding to the respective at least one sensor and to provide at least one output signal in the second data format. Each of the at least one output signal can correspond to at least one of the operational characteristics.
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公开(公告)号：US11095181B2
公开(公告)日：2021-08-17
申请号：US16745465
申请日：2020-01-17
Applicant: LCDRIVES CORP.
Inventor： Matthew Honickman , Russel Hugh Marvin
Abstract: A stator for a rotary electric machine includes a core extending along an axis and having a series of axially extending passages arranged circumferentially about the axis. A plurality of teeth are provided with each tooth including an axially extending inner surface defining a passage and a projection extending therein. Retention devices secure each tooth to the stator. Each retention device includes a resilient member having a base extending within one of the passages of the stator and an arm extending from the base and within the passage of one of the teeth. The arm including an enlarged portion for engaging the projection to pull the tooth into engagement with the core.
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公开(公告)号：US20210226511A1
公开(公告)日：2021-07-22
申请号：US16745413
申请日：2020-01-17
Applicant: LCDRIVES CORP.
Inventor： Dylan BROOMFIELD , Russel Hugh MARVIN , Matthew HONICKMAN
Abstract: A rotary electric machine includes a stator extending along an axis and having teeth arranged about the axis. The teeth are circumferentially spaced apart by slots. Conductors extend around the teeth and through the slots. The conductors are electrically connected to one another to form phases. A cooling device is provided in at least one winding slot. The cooling device includes an outer tube and an inner tube provided in the outer tube such that cooling fluid flows in a first axial direction within the inner tube and a second axial direction opposite the first axial direction within the outer tube.
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