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公开(公告)号：US20230283221A1
公开(公告)日：2023-09-07
申请号：US18317317
申请日：2023-05-15
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Samuel Sheeks , Jeffrey M. Brozek , Keith Boulanger , Andrew T. Beyerl , Timothy R. Obermann , Alex Huber , Samantha L. Billetdeaux , Lance D. Lamont , Matthew J. Mergener
IPC: H02P29/40 , H01M10/42 , H02P6/26 , H01M10/48 , H01M50/296 , H01M50/204
CPC classification number: H02P29/40 , H01M10/425 , H02P6/26 , H01M10/4207 , H01M10/482 , H01M50/296 , H01M2010/4271 , H01M50/204
Abstract: An electrical combination, a tool system, an electric motor, a battery pack, and operating and manufacturing methods. The tool may include a tool housing, a motor supported by the tool housing, the motor having a nominal outer diameter of up to about 80 millimeters (mm), the motor being operable to output at least about 2760 watts (W), and a tool terminal electrically connected to the motor; a battery pack including a pack housing defining a volume of the battery pack, the volume being up to about 5.2×106 cubic millimeters (mm3), battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 80 volts (V), and a pack terminal electrically connectable to the tool terminal to transfer current between the battery pack and the tool; and a controller operable to control the transfer of current.
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公开(公告)号：US20230061923A1
公开(公告)日：2023-03-02
申请号：US17981624
申请日：2022-11-07
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl , Keith Boulanger , Alex Huber , William A. Elger , Jeffrey M. Wackwitz
IPC: H02K7/14 , B25F5/00 , H02K29/08 , H02K1/18 , H02K5/15 , H02K7/08 , H02K11/21 , H02K5/16 , H02K7/116 , H02K21/14
Abstract: A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor including a stator assembly including a stator core having stator laminations with an annular portion and inwardly extending stator teeth. The stator assembly defines a stator envelope in an axial direction extending between axial ends of stator end caps of the stator assembly. The brushless motor further includes a rotor assembly including a rotor core having rotor laminations and defining a central aperture that extends in the axial direction and that receives a shaft, and a position sensor board assembly including position sensors and configured to provide position information of the rotor core to the controller. The rotor assembly and the position sensor board assembly are provided at least partially within the stator envelope.
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公开(公告)号：US11515743B2
公开(公告)日：2022-11-29
申请号：US16698293
申请日：2019-11-27
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl , Derek J. Schwab
Abstract: An electric motor includes a stator assembly including a lamination stack, a printed circuit board assembly (PCBA), and a plurality of windings. The PCBA is coupled to the lamination stack at a first axial end of the stator assembly. The windings are wrapped about the lamination stack to form coils. Each winding includes crossover portions extending about a portion of a circumference of the stator assembly to connect pairs of opposite coils. The crossover portions are located at a second axial end of the stator assembly opposite the first axial end.
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公开(公告)号：US11476527B2
公开(公告)日：2022-10-18
申请号：US16045513
申请日：2018-07-25
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Samuel Sheeks , Keith Boulanger , Andrew T. Beyerl , Timothy R. Obermann , Carl B. Westerby , Matthew J. Mergener , Cameron R. Schulz , Kyle C. Fassbender , Matthew R. Polakowski
IPC: H02K1/18 , H01M50/20 , H02K11/33 , H02H7/08 , H02K1/14 , H02K9/06 , H02K3/52 , H02K5/15 , H02K7/14 , H02K21/16 , H02K1/276 , H02P27/08 , H01M50/213 , H02K5/20
Abstract: An electrical combination, a motorized device system, a motor assembly, a battery pack, and operating methods. The combination may include an electrical device including a device housing, a load supported by the device housing, the load being operable to output at least about 1800 watts (W), and a device terminal electrically connected to the load; a battery pack including a pack housing, battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 20 volts, and a pack terminal electrically connectable to the device terminal to transfer current between the battery pack and the electrical device; and a controller operable to control the transfer of current.
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公开(公告)号：US11322792B2
公开(公告)日：2022-05-03
申请号：US17539670
申请日：2021-12-01
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl , Michael Kolden , Troy C. Thorson , Jeffrey M. Wackwitz , Jeffrey S. Holly
IPC: H01M50/213 , H01M50/20 , H01M50/209
Abstract: A battery pack that is connectable to and supportable by a power tool (e.g., a hand-held power tool). The battery pack includes a top housing having a support member. The support member of the battery pack top housing is configured or operable to reinforce a support portion of the battery pack that is used to connect the battery pack to the power tool. By reinforcing the support portion of the battery pack, an interface between the battery pack and the power tool is able to withstand greater forces (e.g., from vibrations caused by the power tool).
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Patent Agency Ranking
公开(公告)号：US20210234432A1
公开(公告)日：2021-07-29
申请号：US17228932
申请日：2021-04-13
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl
Abstract: A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.
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公开(公告)号：US10978933B2
公开(公告)日：2021-04-13
申请号：US16901192
申请日：2020-06-15
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl
Abstract: A power tool with a combined printed circuit board (PCB) having a doughnut shape and located coaxially with a motor shaft. The combined PCB is secured to a heat sink on one end of the motor and a metal end piece is positioned on an opposite end of the motor. The metal end cap and heat sink are secured to one another via fasteners to provide a rigid coupling. A tabbed end piece is provided between the heat sink and the motor stator and is also secured into place via the fasteners. The tabbed end piece includes wire support tabs that provide strain relief to motor coil leads. The wire support tabs extend axially from circumferential locations of the tabbed end piece and include channels to guide the motor coil leads to solder contact points on the combined PCB.
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公开(公告)号：US20200280243A1
公开(公告)日：2020-09-03
申请号：US16879090
申请日：2020-05-20
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Andrew T. Beyerl , Keith Boulanger , Alex Huber , William A. Elger , Jeffrey M. Wackwitz
IPC: H02K7/14 , B25F5/00 , H02K29/08 , H02K1/18 , H02K5/15 , H02K7/08 , H02K11/21 , H02K5/16 , H02K7/116 , H02K21/14
Abstract: A power tool including a housing, a controller within the housing, and a brushless motor within the housing and controlled by the controller. The brushless motor includes a stator assembly, a rotor core, and a rotor enclosure. The stator assembly includes a stator core having stator laminations defining a stack length in an axial direction. The rotor enclosure includes a front end cap provided on a first side of the rotor core having a front bearing holder; and a rear end cap provided on a second side of the rotor core. The brushless motor further includes a fan, a front bearing, and a rear bearing. The front bearing holder and the fan define a bearing-to-fan length in the axial direction between axial ends of the front bearing holder and the fan, wherein a difference between the bearing-to-fan length and the stack length is less than 23.5 millimeters.
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公开(公告)号：US20200162007A1
公开(公告)日：2020-05-21
申请号：US16751344
申请日：2020-01-24
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Samuel Sheeks , Keith Boulanger , Andrew T. Beyerl , Timothy R. Obermann , Carl B. Westerby , Matthew J. Mergener , Cameron R. Schulz , Kyle C. Fassbender , Matthew R. Polakowski
IPC: H02P27/08 , H01M2/10 , H02K1/14 , H02K1/18 , H02K1/27 , H02K3/52 , H02K7/14 , H02K9/06 , H02K11/33 , H02K21/16
Abstract: An electrical combination, a motorized device system, a motor assembly, a battery pack, and operating methods. The combination may include an electrical device including a device housing, a load supported by the device housing, the load being operable to output at least about 1800 watts (W), and a device terminal electrically connected to the load; a battery pack including a pack housing, battery cells supported by the pack housing, the battery cells being electrically connected and having a nominal voltage of up to about 20 volts, and a pack terminal electrically connectable to the device terminal to transfer current between the battery pack and the electrical device; and a controller operable to control the transfer of current.
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公开(公告)号：US20190260266A1
公开(公告)日：2019-08-22
申请号：US16399129
申请日：2019-04-30
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jeffrey C. Hessenberger , Michael Kolden , Andrew T. Beyerl
Abstract: A power tool includes a housing, a battery connection portion supported by the housing, a drive mechanism configured to operate a working element, and a brushless DC motor positioned within the housing and connected to the drive mechanism. The motor includes a rotor, stator surrounding the motor, and an output shaft fixed to the rotor such that movement of the rotor is transmitted to the output shaft. The motor also includes a fan coupled to the output shaft to rotate with the output shaft and the rotor, and a brass bushing fixed to the output shaft to rotate with the rotor and the output shaft relative to the stator. The bushing includes a balancing feature.
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