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公开(公告)号：US20240275161A1
公开(公告)日：2024-08-15
申请号：US18642039
申请日：2024-04-22
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jeffrey M. Brozek , Benjamin Tesch , Chien-Chih Chao
Abstract: A resettable electronic fuse for a high-power device such as a power tool, a battery pack for the power tool, or a battery pack charger. The resettable electronic fuse is connected in a current path of the device and is operable or configured to selectively interrupt current through the resettable electronic fuse based on a detected condition of the device (e.g., a detected fault condition of the device). The resettable electronic fuse is also configured to be reset after a detected fault condition has ended. In some embodiments, the resettable electronic fuse is configured to reset itself. In other embodiments, the resettable electronic fuse is configured to receive a signal (e.g., from a device controller) to reset.
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公开(公告)号：US20240085489A1
公开(公告)日：2024-03-14
申请号：US18508444
申请日：2023-11-14
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Samuel Sheeks , Jeffrey M. Brozek , Matthew J. Mergener , Ryan B. Jipp
IPC: G01R31/392 , H01M10/44 , H01M10/617 , H01M10/6235 , H01M10/643 , H01M10/6554 , H01M50/213 , H01M50/269 , H01M50/284 , H01M50/296 , H02J7/00
CPC classification number: G01R31/392 , H01M10/443 , H01M10/617 , H01M10/6235 , H01M10/643 , H01M10/6554 , H01M50/213 , H01M50/269 , H01M50/284 , H01M50/296 , H02J7/0029 , H02J7/0042 , H02J7/0045 , H02J7/007192 , H02J7/007194 , H01M10/652
Abstract: A battery pack, a method of heating a battery cell and an electrical combination. The battery pack may include a housing; a battery cell; a heating element operable to provide heat to the battery cell; a temperature sensing device operable to sense a temperature of an interior of the battery pack; a heating switch operable to control whether power is provided to the heating element; and an electronic processor configured to receive a signal from the temperature sensing device, the signal indicating the temperature of the interior of the battery pack, determine that the temperature of the interior of the battery pack is less than a predetermined temperature threshold, and in response to determining that the temperature of the interior of the battery pack is less than the predetermined temperature threshold, close the heating switch to provide power to the heating element.
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公开(公告)号：US20230144937A1
公开(公告)日：2023-05-11
申请号：US17051504
申请日：2020-07-17
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Jeffrey M. Brozek , Benjamin Tesch , Chien-Chih Chao
Abstract: A resettable electronic fuse for a high-power device such as a power tool, a battery pack for the power tool, or a battery pack charger. The resettable electronic fuse is connected in a current path of the device and is operable or configured to selectively interrupt current through the resettable electronic fuse based on a detected condition of the device (e.g., a detected fault condition of the device). The resettable electronic fuse is also configured to be reset after a detected fault condition has ended. In some embodiments, the resettable electronic fuse is configured to reset itself. In other embodiments, the resettable electronic fuse is configured to receive a signal (e.g., from a device controller) to reset.
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公开(公告)号：US11374528B2
公开(公告)日：2022-06-28
申请号：US16700216
申请日：2019-12-02
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
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.
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公开(公告)号：US20210359526A1
公开(公告)日：2021-11-18
申请号：US17389770
申请日：2021-07-30
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Matthew J. Mergener , Timothy Ryan Obermann , Kevin L. Glasgow , Jeffrey M. Brozek
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 circuity 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
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Patent Agency Ranking
公开(公告)号：US20210022272A1
公开(公告)日：2021-01-21
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
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.
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公开(公告)号：US10804711B2
公开(公告)日：2020-10-13
申请号：US15865764
申请日：2018-01-09
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor： Samuel Sheeks , Jeffrey M. Brozek , Matthew J. Mergener , Ryan B. Jipp
IPC: H02J7/00 , H01M2/10 , H01M10/617 , H01M10/6235 , H01M10/643 , H01M10/6554 , G01R31/392 , H01M10/44 , H01M2/30 , H01M10/652 , H01M10/6557 , G01R31/396
Abstract: A battery pack and a method of inhibiting failure of a battery pack. The battery pack may generally include a housing; a battery cell supported in the housing and electrically connectable to an electrical device, power being transferrable between the battery cell and the electrical device; a resistor supported in the housing and operable to receive current from the battery cell; and an electronic processor configured to detect a failure condition of the battery pack, and, in response to detecting the failure condition of the battery pack, cause the battery cell to discharge through the resistor.
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公开(公告)号：US20190198914A1
公开(公告)日：2019-06-27
申请号：US16292031
申请日：2019-03-04
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 , B25F5/00 , H01M2/10 , H01M4/505 , H01M10/42 , H01M10/44 , H02J7/04 , H01M10/48
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.
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公开(公告)号：US20180277801A1
公开(公告)日：2018-09-27
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
CPC classification number: H01M2/0212 , H01M2/1022 , H01M10/441 , H01M10/482 , H01M2220/30 , H02J7/0021 , H02J7/0063 , H02J2007/0098
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.
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公开(公告)号：US09819051B2
公开(公告)日：2017-11-14
申请号：US15602186
申请日：2017-05-23
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
CPC classification number: H01M10/0525 , B25F5/00 , G01R31/3606 , H01M2/1016 , H01M2/1022 , H01M2/1055 , H01M4/505 , H01M10/4207 , H01M10/425 , H01M10/4257 , H01M10/441 , H01M10/46 , H01M10/482 , H01M2010/4271 , H01M2010/4278 , H01M2200/00 , H01M2220/30 , H02J7/0011 , H02J7/0026 , H02J7/0031 , H02J7/0045 , H02J7/0063 , H02J7/041 , H02J7/042 , Y02E60/122
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.
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