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公开(公告)号：US20240208028A1
公开(公告)日：2024-06-27
申请号：US18597411
申请日：2024-03-06
Applicant: Black & Decker Inc.
Inventor： Joseph P. KELLEHER , William F. GALLAGHER , Craig A. OKTAVEC , David J. SMITH , Jarrett A. DUNSTON
IPC: B25F5/00 , B24B23/02 , B25F5/02 , H02K1/14 , H02K1/2706 , H02K3/18 , H02K3/34 , H02K3/38 , H02K3/487 , H02K3/52 , H02K5/10 , H02K5/20 , H02K7/08 , H02K7/116 , H02K7/14 , H02K9/04 , H02K9/06 , H02K9/22 , H02K11/215 , H02K11/33 , H02K21/16
CPC classification number: B25F5/008 , B24B23/028 , B25F5/02 , H02K1/146 , H02K1/2706 , H02K3/18 , H02K3/34 , H02K3/487 , H02K3/522 , H02K5/10 , H02K5/207 , H02K7/08 , H02K7/116 , H02K7/145 , H02K9/04 , H02K9/06 , H02K9/227 , H02K11/215 , H02K11/33 , H02K21/16 , H02K3/38 , H02K2203/09 , H02K2203/12 , H02K2213/03
Abstract: A power tool is provided including a tool housing including a motor housing and a handle portion; a battery receptacle disposed at an end of the handle portion opposite the motor housing, the battery receptacle being configured to receive a battery pack; and a brushless DC motor including a stator and a rotor. The stator includes a stator lamination stack, an end insulator, and input terminals supported by the end insulator. A power circuit board is coupled to the input terminals to supply power to the motor. The motor produces a maximum power output of at least 1600 watts for driving an output shaft at a maximum torque of at least 30 inch-pounds and a maximum speed of at least 8000 rotations-per-minute.
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公开(公告)号：US11791694B2
公开(公告)日：2023-10-17
申请号：US17060472
申请日：2020-10-01
Applicant: Equipmake Ltd , aim CO., LTD.
Inventor： Yoshitoshi Sakurai , Ian Foley , Martin Ogilvie , Rob Williamson , Michio Kawamoto
IPC: H02K5/20 , H02K9/197 , H02K9/06 , H02K5/128 , H02K9/04 , H02K1/32 , H02K1/274 , H02K3/24 , H02K1/276
CPC classification number: H02K9/197 , H02K1/274 , H02K1/32 , H02K3/24 , H02K5/128 , H02K5/203 , H02K5/207 , H02K9/04 , H02K9/06 , H02K1/2773
Abstract: A stator and a rotor suitable for use in an electric motor or generator. The stator comprises a plurality of stator cons and a support for holding the coils around a rotor of the motor. A cylindrical sleeve is mounted radially inwardly on the support to form a barrier in use between cooling fluid passing over the coils and a rotor located within the stator. The rotor comprises a hub, a plurality of rotor segments, and a plurality of permanent magnets. The segments are arranged around the hub in a ring, with the permanent magnets disposed between the segments. A radially outwardly facing exposed surface of each magnet is spaced radially inwardly from an outer cylindrical profile defined by the segments.
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公开(公告)号：US11691260B2
公开(公告)日：2023-07-04
申请号：US17495494
申请日：2021-10-06
Applicant: Black & Decker Inc.
Inventor： Joseph P. Kelleher , William F. Gallagher , Sean R. Templeton , Mark R. Poetzl , Seth M. Robinson , Marcell E. Coates , Madhur M. Purohit , Timothy J. Seeley , Joshua M. Lewis
IPC: B25F5/00 , B25F5/02 , H02K3/487 , H02K3/52 , H02K5/20 , H02K9/22 , H02K11/33 , B24B23/02 , H02K7/116 , H02K7/14 , H02K9/06 , H02K11/215 , H02K7/08 , H02K9/04 , H02K1/14 , H02K1/2706 , H02K3/18 , H02K21/16 , H02K3/34 , H02K5/10 , H02K3/38
CPC classification number: B25F5/008 , B24B23/028 , B25F5/02 , H02K1/146 , H02K1/2706 , H02K3/18 , H02K3/34 , H02K3/487 , H02K3/522 , H02K5/10 , H02K5/207 , H02K7/08 , H02K7/116 , H02K7/145 , H02K9/04 , H02K9/06 , H02K9/227 , H02K11/215 , H02K11/33 , H02K21/16 , H02K3/38 , H02K2203/09 , H02K2203/12 , H02K2213/03
Abstract: A power tool is provided including a gear case having a spindle, a motor case connected to a rear end of the gear case along a longitudinal axis; a handle portion extending from a rear end of the motor case along the longitudinal axis; a motor housed inside the motor case; a fan in rotational connection with the motor; at least one air intake arranged at least one of the motor case or the handle portion near the rear end of the motor case; and a power module including power switches for driving the motor and a heat sink. The power module is housed in at least one of the motor case or the handle portion near the rear end of the motor case such that rotation of the fan causes air flow to enter through the air intake and flow near the heat sink and through the motor.
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公开(公告)号：US20230167822A1
公开(公告)日：2023-06-01
申请号：US18161906
申请日：2023-01-31
Applicant: Raymond Zhou Shaw , JIAN WEI ZHANG , Xiaoqing Pan
Inventor： Raymond Zhou Shaw , JIAN WEI ZHANG , Xiaoqing Pan
CPC classification number: F04C18/126 , F04C25/02 , F04C23/001 , H02K9/04 , F04C2210/221 , F04C2220/10 , F28B11/00
Abstract: A vacuum system having a condenser and a root vacuum pump set includes an independent inlet condenser set having an inlet end for receiving vapor inputted from an output of an air cooling power generator condenser of a generator; air in the vapor being condensed, and the surplus air is outputted; a root vacuum pump set including a plurality of root vacuum pumps; the root vacuum pump set further including an input end and an output end; the input end being connected to the independent inlet condenser set; air outputted from the independent inlet condenser set being inputted to the plurality of root vacuum pump for compression and then the compressed air being outputted from the output end; and a backing pump connected to the output end of the root vacuum pump set by using an output pipe; the backing pump serving to receive air outputted from the root vacuum pump set.
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公开(公告)号：US11644789B2
公开(公告)日：2023-05-09
申请号：US17333279
申请日：2021-05-28
Applicant: Canon Kabushiki Kaisha
Inventor： Eijiro Ohashi , Yasukazu Maeda , Takuya Miyashita
IPC: H02P21/14 , G03G21/16 , H02P6/16 , H02P6/28 , H02K9/04 , H02K1/2753 , H02M7/5387 , H02K1/16
CPC classification number: G03G21/16 , H02K9/04 , H02P6/16 , H02P6/28 , H02K1/16 , H02K1/2753 , H02M7/53871
Abstract: A motor control apparatus excites an excitation phase targeted for excitation among a plurality of excitation phases of a motor. The motor control apparatus, in a state in which a rotor of the motor is stopped, excites an excitation phase corresponding to a stop position of the rotor among the plurality of the excitation phases, and measures a physical quantity which changes in accordance with an inductance of at least one of a plurality of coils configuring the plurality of excitation phases. The motor control apparatus estimates a temperature of the rotor from a measurement value of the measured physical quantity, and decides a parameter value for control of the motor based on the estimated temperature.
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Patent Agency Ranking
公开(公告)号：US20190214882A1
公开(公告)日：2019-07-11
申请号：US16334292
申请日：2017-09-06
Applicant: INSTITUT VEDECOM
Inventor： Guy Diemunsch
CPC classification number: H02K7/003 , H02K1/32 , H02K5/1732 , H02K7/00 , H02K9/04 , H02K9/06 , H02K9/14 , H02K9/22 , H02K15/00
Abstract: The invention relates to a sleeve (1) providing a mechanical connection between a shaft of an electrical machine and a rotational bearing of the electrical machine (100) comprising: a first portion (3) arranged to co-operate with the electrical machine shaft, a second portion (5) arranged to co-operate with the rotational bearing, characterized in that the first portion (3) defines at least one internal chamber (4) and comprises at least one means of communication (6) between an environment surrounding the sleeve (1) and the internal chamber (4). Said invention is applicable to motor vehicles.
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公开(公告)号：US20190058374A1
公开(公告)日：2019-02-21
申请号：US16078298
申请日：2016-02-25
Applicant: Hitachi, Ltd.
Inventor： Yuji ENOMOTO , Hirooki TOKOI , Naoki SAKURAI , Hisashi TANIE , Kenta DEGUCHI
IPC: H02K9/20 , H02K7/14 , H02K11/33 , H02K11/40 , H02K16/02 , H02K21/24 , F28D15/02 , F04D3/00 , F04D13/06
CPC classification number: H02K9/20 , F04D3/00 , F04D13/0606 , F04D13/0666 , F04D29/5806 , F28D15/02 , F28D15/0233 , F28D15/04 , F28D2021/0028 , F28D2021/004 , H02K1/146 , H02K5/18 , H02K7/14 , H02K9/04 , H02K9/14 , H02K11/33 , H02K11/40 , H02K16/02 , H02K21/24 , H02K2211/03
Abstract: To significantly improve a heat dissipation property of an axial gap rotary electric machine within a size necessary for configuring a motor. In an axial gap rotary electric machine comprising a stator and a rotor in an axial direction, the stator has a plurality of stator cores arranged in a circumferential direction and coils wound around the stator cores, and a heat pipe obtained by filling an inside of a metal hollow pipe with a refrigerant is arranged in a gap between adjacent coils formed in an outer diameter portion of the stator in a radial direction and a housing with a necessary insulation distance between the coils and the heat pipe. The heat pipe extends in a direction of a rotation axis and an opposite output side, and is in contact with a heat dissipating fin outside an end bracket on the opposite output side.
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公开(公告)号：US20180241286A1
公开(公告)日：2018-08-23
申请号：US15439214
申请日：2017-02-22
Applicant: General Electric Company
Inventor： Vishwanath U. HANGARI , Mathieu BITTERMANN
Abstract: Provided is a cooling apparatus for an electric machine combined with an external fan or blower that includes a plurality of cooler tubes or plates spaced a predetermined distance apart within a chamber of the cooling apparatus. Internally circulating air of the electric machine flows through the cooler tubes and externally circulating air flows over the cooler tubes in a direction perpendicular or opposite that of the internally circulating air perform the cooling process. The velocity of externally circulated air is increased using cones and thus the Venturi effect is created. The fresh air enters the cooler from the adjacent openings due to Venturi effect and the total mixed air at lower temperature flows over the reminder of the tubes or plates to cool the internal circuit air, thus improves the cooler efficiency.
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公开(公告)号：US20180222011A1
公开(公告)日：2018-08-09
申请号：US15884898
申请日：2018-01-31
Applicant: GERD EISENBLAETTER GMBH
Inventor： Gerd EISENBLAETTER
CPC classification number: B24B55/102 , B24B23/02 , B24B23/028 , B24B41/007 , B24B41/02 , B25F5/008 , B25F5/02 , H02K7/145 , H02K9/04
Abstract: The invention relates to an electric hand-held tool with a tool mount, a motor for driving a tool fastened in the tool mount, and a housing which includes a handle area, a motor area for accommodating the motor, and in which vent openings are configured for the ventilation of the motor. At least in the area of the vent openings, the housing is provided with at least one cover with a closed surface, said cover sitting flush against the housing with an edge area facing the tool mount, being arranged at a distance from the housing in an area above the vent openings, and leaving a gap between the cover and the housing in the area of its edge area facing away from the tool mount.
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公开(公告)号：US09958025B2
公开(公告)日：2018-05-01
申请号：US14673166
申请日：2015-03-30
Applicant: SANYO DENKI CO., LTD.
Inventor： Daigo Kuraishi
Abstract: A structure for attaching a cooling fan includes: a fan attachment plate interposed between a ventilation cover of a servomotor and the cooling fan and having a cut-out hole; and a tubular vibration-proof member supported by the cut-out hole of the fan attachment plate and fixed to the ventilation cover.
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