公开(公告)号：US20190238022A1

公开(公告)日：2019-08-01

申请号：US16258745

申请日：2019-01-28

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Russell M. Rapant ,  Brian Trump ,  Jeffrey C. Hessenberger

IPC: H02K3/52 ,  H02K15/00 ,  H02K16/00 ,  H02K21/00

CPC classification number: H02K3/522 ,  H02K15/00 ,  H02K16/00 ,  H02K21/00

Abstract: An electric motor includes a stator including an annular stator core and an end cap coupled to an axial end of the stator core. The stator core and the end cap together define a body portion and a plurality of teeth projecting inwardly from the body portion. Each tooth includes a tooth crown portion at a radially distal end and a tooth body portion extending between the body portion and the crown portion. Steps are formed on at least one tooth body portion at the axial end of the stator core.

公开(公告)号：US20170170774A1

公开(公告)日：2017-06-15

申请号：US15378757

申请日：2016-12-14

Applicant: Milwaukee Electric Tool Corporation

Inventor： David H. Selfors ,  Brian Trump

IPC: H02P29/032 ,  H02P25/10 ,  H02P6/16 ,  B25F5/00 ,  B24B23/02

CPC classification number: B24B23/028 ,  B23Q11/04 ,  B25F5/00 ,  H02H7/093 ,  H02P29/10

Abstract: A power tool includes a motor, a power circuit coupled to the motor, and a speed sensor coupled to the motor. The power circuit provides power to the motor. The speed sensor detects a position of the motor. The power tool also includes an electronic processor coupled to the motor and the speed sensor. The electronic processor is configured to receive an output signal from the speed sensor indicative of a measured speed of the motor at a first time, determine a cumulative value based on the measured speed of the motor, and interrupt power from the power circuit to the motor when the cumulative value exceeds an accumulator threshold.

公开(公告)号：US20240313620A1

公开(公告)日：2024-09-19

申请号：US18681228

申请日：2022-08-19

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Linnea Emerson ,  Brian Trump

IPC: H02K9/06 ,  A01G20/47 ,  F04D25/06 ,  H02K21/22

CPC classification number: H02K9/06 ,  F04D25/064 ,  H02K21/22 ,  A01G20/47

Abstract: An outer rotor for use with a brushless DC electric motor includes a rotor body, a shaft coupled for co-rotation with the rotor body and defining a rotational axis, a cover surrounding at least a portion of the rotor body, and a fan integrally formed with the cover as a single piece. The fan includes a plurality of blades extending radially outward of the cover and configured to induce an airflow along an exterior surface of the cover in a direction parallel with the rotational axis.

公开(公告)号：US20220014055A1

公开(公告)日：2022-01-13

申请号：US17373923

申请日：2021-07-13

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Russell M. Rapant ,  Brian Trump ,  Jeffrey C. Hessenberger

IPC: H02K1/27 ,  H02K9/04 ,  H02K15/03

Abstract: An electric motor includes a stator and a rotor assembly received in the stator. The rotor assembly includes a shaft, a rotor core, a rotor molding that is molded to the rotor core, and a fan. A coupler is formed on the rotor molding and a corresponding mounting hub is formed on the fan. The shaft is pressed into the rotor core after the rotor molding is molded to the rotor core, and the fan is affixed to the rotor molding by connecting the coupler and the mounting hub after the shaft is pressed into the rotor core.

公开(公告)号：US20240293924A1

公开(公告)日：2024-09-05

申请号：US18590233

申请日：2024-02-28

Applicant: Milwaukee Electric Tool Corporation

Inventor： Alex R. Kuhls ,  Andrew R. Tess ,  Brian Trump

IPC: B25F5/00 ,  B25F3/00 ,  F15B15/18

CPC classification number: B25F5/005 ,  F15B15/18 ,  B25F3/00

Abstract: A hydraulic tool including an outer rotor electric motor having a rotor and a stator, a hydraulic pump, and a gearbox coupled between the electric motor and the hydraulic pump. In one example, the stator is at least partially received within the rotor. In another example, the electric motor drives the hydraulic pump via the gearbox to pressurize hydraulic fluid within the hydraulic tool.

公开(公告)号：US20210234492A1

公开(公告)日：2021-07-29

申请号：US17051216

申请日：2020-04-15

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Brian Trump ,  David H. Selfors

IPC: H02P29/024 ,  B25F5/00 ,  H02H7/20 ,  H02P23/14

Abstract: Power tools including a housing, a motor, a power circuit supplying operating power to the motor through a triac, a speed sensor configured to detect a speed of the motor, a speed selector, and an electronic processor. The electronic processor is configured to determine a selected speed and set a present conduction angle of the triac to an initial conduction angle corresponding to the selected speed. The electronic processor is also configured to determine whether the speed is decreasing and determine whether the present conduction angle is below a maximum conduction angle corresponding to the selected speed when the speed is decreasing. The electronic processor is further configured to increase the present conduction angle when the present conduction angle is below the maximum conduction angle and maintain the present conduction angle at the maximum conduction angle when the present conduction angle is at or above the maximum conduction angle.