公开(公告)号：US11710974B2

公开(公告)日：2023-07-25

申请号：US16711510

申请日：2019-12-12

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Dean W. Nowalis ,  Gary Lee McMurray ,  Brian Alves ,  Timothy R. Obermann ,  Benjamin C. Tesch ,  DanJun Guo ,  HuaLiang Lai

IPC: H02J7/00 ,  H05K7/14 ,  H01M50/247

CPC classification number: H02J7/0063 ,  H01M50/247 ,  H05K7/1432 ,  H02J7/0024

Abstract: A power adapter assembly and an electrical system. The power adapter assembly is operable to supply power to an electrical device. The power adapter assembly includes a power box including a housing, an electrical circuit supported by the housing, the electrical circuit being operable to receive as input AC power and to output DC power, an adapter controller operable to control the adapter assembly; and an adapter electrically connected to the power box, the adapter including an adapter engagement portion connectable to a device engagement portion to connect the adapter to the electrical device, DC power being output from the electrical circuit through the adapter to the electrical device to power the load, when the adapter engagement portion is connected to the device engagement portion, a communication interface between the adapter assembly and the electrical device being active even when power is not being output to power the load.

公开(公告)号：US20240072554A1

公开(公告)日：2024-02-29

申请号：US18454187

申请日：2023-08-23

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Benjamin C. Tesch ,  David Brochtrup

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/44

CPC classification number: H02J7/0042 ,  H01M10/425 ,  H01M10/441 ,  H02J7/0047

Abstract: A portable power supply includes a housing, a control area network (“CAN”) bus, a battery core configured to be charged by a battery core charger, a battery pack charger connected to the battery core and to the CAN bus via a galvanic isolation barrier. A battery management system is connected to the battery pack charger via the CAN bus and a power line and configured to control an operation of the battery pack charger and the battery core charger. A battery pack detection circuit is connected to one or more charging ports of the one or more charging modules. The battery pack detection circuit configured to draw current from a battery pack and produce a battery pack detection signal at battery management system via a galvanic isolation device.

公开(公告)号：US20230396087A1

公开(公告)日：2023-12-07

申请号：US18326758

申请日：2023-05-31

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Chun Jian Tang ,  Michael A. Barrowclift ,  Brian M. Hockers ,  Benjamin C. Tesch

IPC: H02J7/00

CPC classification number: H02J7/0068 ,  H02J7/0048 ,  H02J7/007194

Abstract: A portable power supply includes an internal power source, a thermal management system configured to control a temperature of one or more internal components of the portable power supply, a power input unit configured to charge the internal power source, a power output unit configured to provide power output by the internal power source, a first sensing circuit configured to detect the temperature of the one or more internal components, a secondary power source, and a controller. The controller is configured to receive a first signal from the first sensing circuit, enable the thermal management system based on the temperature of the one or more internal components, and enable charging of the internal power source based on the temperature of the one or more internal components.

公开(公告)号：US20240047767A1

公开(公告)日：2024-02-08

申请号：US18359320

申请日：2023-07-26

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： David Brochtrup ,  Benjamin C. Tesch ,  Brian M. Hockers

IPC: H01M10/42 ,  G01R31/371 ,  H04L12/40 ,  H02J7/00

CPC classification number: H01M10/425 ,  G01R31/371 ,  H04L12/40 ,  H02J7/00036 ,  H01M2010/4271 ,  H01M2010/4278 ,  H04L2012/40215 ,  H02J2207/20

Abstract: A portable power supply. The portable power supply includes a housing, a CAN bus in the housing, a battery core in the housing and configured to be charged by a battery core charger, a battery pack charger connected to the battery core and to the CAN bus via a galvanic isolation barrier and including one or more charging modules, a battery management system connected to the battery pack charger via the CAN bus and configured to control an operation of the battery pack charger and the battery core charger, and a human machine interface connected to the battery management system via the CAN bus and configured to allow a user to generate one or more control commands or information requests on the CAN bus for execution by one or more of the battery management system, battery core charger, or battery pack charger.

公开(公告)号：US20220200303A1

公开(公告)日：2022-06-23

申请号：US17554315

申请日：2021-12-17

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Mahesh M. Swamy ,  Omid H. Shirazi ,  Matthew R. Polakowski ,  Nathan J. Gustafson ,  Chien-Chih Chao ,  Samantha L. Billetdeaux ,  Michael R. Halverson ,  Benjamin C. Tesch ,  Chun Jian Tang ,  Michael A. Matthews ,  James Dykstra ,  Brian M. Hockers ,  Catherine Kelli Semon ,  Andrew S. Lentz

IPC: H02J7/00

Abstract: A portable power supply including an internal power source, an AC output, a DC output, and an input unit configured to receive power from a first external source. The portable power supply further includes a first power conversion unit configured to convert the power received from the first external source to a first DC power used for charging the internal power source, an AC power conversion unit configured to convert power output by the internal power source to an AC power used for powering a first peripheral device connected to the AC output, and a DC power conversion unit configured to convert power output by the internal power source to a second DC power used for powering a second peripheral device connected to the DC output.

公开(公告)号：US20210281084A1

公开(公告)日：2021-09-09

申请号：US17190158

申请日：2021-03-02

Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION

Inventor： Chun Jian Tang ,  Benjamin C. Tesch ,  Chien-Chih Chao ,  Brian M. Hockers

IPC: H02J7/00

Abstract: A portable power supply including a first subcore including a first plurality of battery cells, a second subcore including a second plurality battery cells and electrically connected in series with the first subcore, and a controller including an electronic processor. The controller is configured to receive a first voltage value indicative of a voltage of the first plurality of battery cells from the first subcore and a second voltage value indicative of a voltage of the second plurality of battery cells from the second subcore. The controller is further configured to determine a difference between the first voltage value and the second voltage value, compare the difference to a balance threshold, and perform a balancing operation when the difference is greater than or equal to the balance threshold.