公开(公告)号：US11839066B2

公开(公告)日：2023-12-05

申请号：US17061733

申请日：2020-10-02

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Donald J. Truettner ,  Jeffrey M. Brozek ,  Steven T. Sommerfeld ,  Cameron R. Schulz

IPC: H05K7/20 ,  H02J7/00 ,  G01K1/14 ,  H01M10/48

CPC classification number: H05K7/20909 ,  G01K1/14 ,  H02J7/0042 ,  H05K7/209 ,  H05K7/20172 ,  H05K7/20945 ,  H01M10/486

Abstract: A battery charger and a method of operating a battery charger. The charger may include a housing defining an air inlet and an air outlet; a charging circuit operable to output a charging current to charge a battery couplable to the battery charger; a tubular heat sink; and a fan operable to cause air flow from the air inlet to the air outlet and along the heat sink. The charger may include a first switch operable to electrically connect the charging circuit to a power source when the battery engages the charger; and a second switch operable to electrically connect the charging circuit to a battery terminal after the charger terminal is electrically connected to the battery terminal. The charging current or a fan speed may be adjusted based on at least one of the temperature of the charger or a temperature of the battery.

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.

公开(公告)号：US20220231387A1

公开(公告)日：2022-07-21

申请号：US17671378

申请日：2022-02-14

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jeffrey M. Brozek ,  Donald J. Truettner ,  Lance D. Lamont ,  Burtrom L. Stampfl ,  Timothy R. Obermann ,  Matthew J. Mergener ,  Seyed A. Hamidi ,  Jacob N. Zimmerman ,  Kyle J. Radovich

IPC: H01M50/557 ,  H01M10/48 ,  H01M10/44 ,  H02J7/00 ,  H01M50/20

Abstract: A battery pack, an electrical combination and a method of operating a battery pack. The battery pack may include a housing; a plurality of battery cells supported by the housing; a plurality of terminals including a positive power terminal, a negative power terminal, and a low power terminal; a low power circuit connecting the plurality of battery cells to the low power terminal and the negative terminal to output a first voltage; and a power circuit connecting the plurality of battery cells to the positive power terminal and the negative terminal to output a second voltage, the second voltage being greater than the first voltage. A terminal block for one of a battery pack and an electrical device may include a terminal with a terminal blade, and a terminal support portion.

公开(公告)号：US20220166235A1

公开(公告)日：2022-05-26

申请号：US17530747

申请日：2021-11-19

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jeffrey M. Brozek ,  Matthew R. Polakowski ,  James K. Dykstra ,  Chien-Chih Chao ,  Andrew J. Spaulding

IPC: H02J7/00

Abstract: Systems described herein include a battery pack including one or more battery cells and a first resistive element connected to a positive electrode of a first battery cell. The systems also include an external device capable of receiving the battery pack. The external device includes a second resistive element, a switch, and a controller. The second resistive element is configured to be in series with the first resistive element upon the battery pack being received within the external device. The switch is positioned in series with the second resistive element and a common potential is coupled to both the battery pack and the external device. The controller is configured to activate the switch, measure a voltage between the first resistive element and the second resistive element in response to the switch being activated, and determine an identification of the battery pack based on the measured voltage.

公开(公告)号：US11251508B2

公开(公告)日：2022-02-15

申请号：US15934798

申请日：2018-03-23

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Jeffrey M. Brozek ,  Donald J. Truettner ,  Lance D. Lamont ,  Burtrom L. Stampfl ,  Timothy R. Obermann ,  Matthew J. Mergener ,  Seyed A. Hamidi ,  Jacob N. Zimmerman ,  Kyle J. Radovich

IPC: H02J7/00 ,  H01M50/557 ,  H01M10/48 ,  H01M10/44 ,  H01M50/20 ,  H01M10/42

Abstract: A battery pack, an electrical combination and a method of operating a battery pack. The battery pack may include a housing; a plurality of battery cells supported by the housing; a plurality of terminals including a positive power terminal, a negative power terminal, and a low power terminal; a low power circuit connecting the plurality of battery cells to the low power terminal and the negative terminal to output a first voltage; and a power circuit connecting the plurality of battery cells to the positive power terminal and the negative terminal to output a second voltage, the second voltage being greater than the first voltage. A terminal block for one of a battery pack and an electrical device may include a terminal with a terminal blade, and a terminal support portion.

公开(公告)号：US11095148B2

公开(公告)日：2021-08-17

申请号：US16654203

申请日：2019-10-16

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Matthew J. Mergener ,  Timothy Ryan Obermann ,  Kevin L. Glasgow ,  Jeffrey M. Brozek

IPC: H02J7/00 ,  H02J9/06 ,  H01M10/42 ,  H02P27/08

Abstract: A power device including a housing, charging circuitry, and discharge circuitry. The housing defining a first support operable to support a first battery pack, and a second support operable to support a second battery pack. The charging circuitry electrically is connected to the first battery pack and the second battery pack in a parallel-type connection. The charging circuitry is configured to simultaneously charge the first battery pack and the second battery pack. The discharge circuitry is electrically connected to the first battery pack and the second battery pack. The discharge circuitry is configured to electrically connect the first battery pack and the second battery pack in a series-type connection during a discharge

公开(公告)号：US10892624B2

公开(公告)日：2021-01-12

申请号：US16415232

申请日：2019-05-17

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Matthew J. Mergener ,  Jeffrey M. Brozek ,  Christian Funda ,  Nicholas Konetzke

IPC: H02J7/00 ,  B25F5/00 ,  H01M10/48

Abstract: Methods and systems for selectively connecting a plurality of battery cells in a dual-mode battery pack in series and parallel configurations and/or for individual cell monitoring. A dual-mode battery pack may generally include a housing; a first set of battery cells connected in series; and a second set of battery cells connected in series. The battery pack may also include series connection contacts selectively connectable to the first set of battery cells and to the second set of battery cells and, when engaged, connecting the first set of battery cells and the second set of battery cells in a series configuration; and parallel connection contacts selectively connectable to the first set of battery cells and the second set of battery cells and, when engaged, connecting the first set of battery cells and the second set of battery cells in a parallel configuration.

公开(公告)号：US10827655B2

公开(公告)日：2020-11-03

申请号：US16018533

申请日：2018-06-26

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Donald J. Truettner ,  Jeffrey M. Brozek ,  Steven T. Sommerfeld ,  Cameron R. Schulz

IPC: H05K7/20 ,  H02J7/00 ,  G01K1/14

Abstract: A battery charger and a method of operating a battery charger. The charger may include a housing defining an air inlet and an air outlet; a charging circuit operable to output a charging current to charge a battery couplable to the battery charger; a tubular heat sink; and a fan operable to cause air flow from the air inlet to the air outlet and along the heat sink. The charger may include a first switch operable to electrically connect the charging circuit to a power source when the battery engages the charger; and a second switch operable to electrically connect the charging circuit to a battery terminal after the charger terminal is electrically connected to the battery terminal. The charging current or a fan speed may be adjusted based on at least one of the temperature of the charger or a temperature of the battery.

公开(公告)号：US20200220206A1

公开(公告)日：2020-07-09

申请号：US16819854

申请日：2020-03-16

Applicant: Milwaukee Electric Tool Corporation

Inventor： Todd W. Johnson ,  Jay J. Rosenbecker ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow ,  Jonathan A. Zick ,  Jeffrey M. Brozek ,  Karl F. Scheucher

IPC: H01M10/0525 ,  H02J7/00 ,  H01M10/42 ,  H01M10/48 ,  H01M10/44 ,  H01M4/505 ,  H01M2/10 ,  B25F5/00

Abstract: An electrical combination. The combination comprises a hand held power tool, a battery pack and a controller. The battery pack includes a battery pack housing connectable to and supportable by the hand held power tool, a plurality of battery cells supported by the battery pack housing, each of the plurality of battery cells having a lithium-based chemistry, being individually tapped and having an individual state of charge. A communication path is provided by a battery pack sense terminal and a power tool sense terminal. The controller is operable to monitor a state of charge of a number of battery cells less than the plurality of battery cells and to generate a signal based on the monitored state of charge of the number of battery cells less than the plurality of battery cells, the signal being operable to control the operation of the hand held power tool.

公开(公告)号：US20190006980A1

公开(公告)日：2019-01-03

申请号：US16025491

申请日：2018-07-02

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 ,  H01M10/48 ,  H01M10/42 ,  H01M2/30

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.