公开(公告)号：US20210265676A1

公开(公告)日：2021-08-26

申请号：US17246921

申请日：2021-05-03

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow ,  Karl F. Scheucher

IPC: H01M10/48 ,  B25F5/00 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M50/20 ,  H01M50/213 ,  H01M50/543 ,  H01M50/572 ,  H01M4/525

Abstract: An electrical combination including a power tool and a battery pack. The power tool includes power tool terminals. The battery pack is configured to be interfaced with the power tool. The battery pack includes a battery pack housing, at least three terminals, and a plurality of battery cells. The battery pack terminals include a positive terminal, a negative terminal, and a sense terminal. The at least three terminals are configured to be interfaced with the power tool terminals. The plurality of battery cells are arranged within and supported by the battery pack housing. Each of the battery cells has a lithium-based chemistry and a respective state of charge, and power is transferable between the battery cells and the power tool. A circuit is configured to monitor the battery cells, detect a charge imbalance among the battery cells, and prevent the battery pack from operating when the charge imbalance is detected.

公开(公告)号：US11063446B2

公开(公告)日：2021-07-13

申请号：US16924397

申请日：2020-07-09

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Gary D. Meyer ,  Jay J. Rosenbecker ,  Kevin L. Glasgow ,  Todd W. Johnson ,  Karl F. Scheucher

IPC: H02J7/14 ,  H02J7/00 ,  H02J7/02 ,  H02J7/04 ,  H01M10/42

Abstract: A method and system for charging multi-cell lithium-based batteries. In some aspects, a battery charger includes a housing, at least one terminal to electrically connect to a battery pack supported by the housing, and a controller operable to provide a charging current to the battery pack through the at least one terminal. The battery pack includes a plurality of lithium-based battery cells, with each battery cell of the plurality of battery cells having an individual state of charge. The controller is operable to control the charging current being supplied to the battery pack at least in part based on the individual state of charge of at least one battery cell.

公开(公告)号：US20210126476A1

公开(公告)日：2021-04-29

申请号：US17140251

申请日：2021-01-04

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Karl F. Scheucher ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow

IPC: H02J7/00 ,  H01M10/44 ,  H01M50/213 ,  H01M10/46

Abstract: A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.

公开(公告)号：US20200343740A1

公开(公告)日：2020-10-29

申请号：US16924397

申请日：2020-07-09

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Gary D. Meyer ,  Jay J. Rosenbecker ,  Kevin L. Glasgow ,  Todd W. Johnson ,  Karl F. Scheucher

IPC: H02J7/00

Abstract: A method and system for charging multi-cell lithium-based batteries. In some aspects, a battery charger includes a housing, at least one terminal to electrically connect to a battery pack supported by the housing, and a controller operable to provide a charging current to the battery pack through the at least one terminal. The battery pack includes a plurality of lithium-based battery cells, with each battery cell of the plurality of battery cells having an individual state of charge. The controller is operable to control the charging current being supplied to the battery pack at least in part based on the individual state of charge of at least one battery cell.

公开(公告)号：US20200185940A1

公开(公告)日：2020-06-11

申请号：US16792665

申请日：2020-02-17

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Karl F. Scheucher ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow

IPC: H02J7/00 ,  H01M10/46 ,  H01M10/44 ,  H01M2/10

Abstract: A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.

公开(公告)号：US20200028220A1

公开(公告)日：2020-01-23

申请号：US16588686

申请日：2019-09-30

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow ,  Karl F. Scheucher

IPC: H01M10/48 ,  B25F5/00 ,  H01M2/10 ,  H01M4/505 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/42 ,  H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H02J7/04 ,  H01M2/34 ,  H01M4/525 ,  H01M2/30

Abstract: An electrical combination including a power tool and a battery pack. The power tool includes power tool terminals. The battery pack is configured to be interfaced with the power tool. The battery pack includes a battery pack housing, at least three terminals, and a plurality of battery cells. The battery pack terminals include a positive terminal, a negative terminal, and a sense terminal. The at least three terminals are configured to be interfaced with the power tool terminals. The plurality of battery cells are arranged within and supported by the battery pack housing. Each of the battery cells has a lithium-based chemistry and a respective state of charge, and power is transferable between the battery cells and the power tool. A circuit is configured to monitor the battery cells, detect a charge imbalance among the battery cells, and prevent the battery pack from operating when the charge imbalance is detected.

公开(公告)号：US10218194B2

公开(公告)日：2019-02-26

申请号：US15948311

申请日：2018-04-09

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Karl F. Scheucher ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M2/10 ,  H02J7/02 ,  H01M6/42 ,  H01M10/052

Abstract: A method for conducting an operation including a power tool battery pack. The battery pack can include a housing, a first cell supported by the housing and having a voltage, and a second cell supported by the housing and having a voltage. The battery pack also can be connectable to a power tool and be operable to supply power to operate the power tool. The method can include discharging one of the first cell and the second cell until the voltage of the one of the first cell and the second cell is substantially equal to the voltage of the other of the first cell and the second cell.

公开(公告)号：US10137559B2

公开(公告)日：2018-11-27

申请号：US15927149

申请日：2018-03-21

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Joseph M. Debaker ,  Scott R. Fischer ,  Daniel H. Schneider ,  Todd W. Johnson ,  Abhijeet A. Khangar

IPC: B25B7/00 ,  B21K5/00 ,  B25B7/10 ,  B25B7/22 ,  B25G1/10

Abstract: A pliers includes a first member and a second member pivotally coupled to the first member. The first member and the second member each include a head and a handle having a recessed area with a non-circular cross-sectional shape and an exposed end portion adjacent the recessed area. The recessed area is bounded by a forward lip and a rear lip. The forward lip has a cross-sectional area not greater than a cross-sectional area of a portion of the handle adjacent the forward lip and opposite the recessed area. The pliers also includes a first grip positioned on the recessed area of the handle of the first member and a second grip positioned on the recessed area of the handle of the second member. The end portions of the handles are made of metal.

公开(公告)号：US20180309304A1

公开(公告)日：2018-10-25

申请号：US16017788

申请日：2018-06-25

Applicant: Milwaukee Electric Tool Corporation

Inventor： Gary D. Meyer ,  Jay J. Rosenbecker ,  Kevin L. Glasgow ,  Todd W. Johnson ,  Karl F. Scheucher

IPC: H02J7/00 ,  H02J7/04 ,  H02J7/02

CPC classification number: H02J7/0019 ,  H02J7/0004 ,  H02J7/0006 ,  H02J7/0013 ,  H02J7/0014 ,  H02J7/0021 ,  H02J7/0022 ,  H02J7/0029 ,  H02J7/0031 ,  H02J7/0036 ,  H02J7/0042 ,  H02J7/0045 ,  H02J7/0047 ,  H02J7/0057 ,  H02J7/0091 ,  H02J7/0093 ,  H02J7/027 ,  H02J7/041 ,  H02J7/045 ,  H02J2007/004 ,  H02J2007/005 ,  H02J2007/0098

Abstract: A method and system for charging multi-cell lithium-based batteries. In some aspects, a battery charger includes a housing, at least one terminal to electrically connect to a battery pack supported by the housing, and a controller operable to provide a charging current to the battery pack through the at least one terminal. The battery pack includes a plurality of lithium-based battery cells, with each battery cell of the plurality of battery cells having an individual state of charge. The controller is operable to control the charging current being supplied to the battery pack at least in part based on the individual state of charge of at least one battery cell.

公开(公告)号：US10097026B2

公开(公告)日：2018-10-09

申请号：US15620431

申请日：2017-06-12

Applicant: Milwaukee Electric Tool Corporation

Inventor： Todd W. Johnson ,  Dennis J. Grzybowski ,  Mark A. Kubale ,  Jay J. Rosenbecker ,  Karl F. Scheucher ,  Gary D. Meyer ,  Jeffrey M. Zeiler ,  Kevin L. Glasgow

IPC: H01M10/46 ,  H02J7/00

Abstract: An electrical combination. The electrical combination comprises a battery pack configured to be interfaced with a hand held power tool, a control component, and a semiconducting switch. The transfer of power from the battery pack to the hand held power tool is controlled by the control component and the switch based on one of a battery pack state of charge and a respective state of charge of one of a plurality of battery cells. A discharge current of the battery pack is regulated based on the switch being controlled into one of a first state and a second state by the control component to selectively enable the transfer power from the plurality of battery cells to the hand held power tool.