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公开(公告)号:US12202171B2
公开(公告)日:2025-01-21
申请号:US17605870
申请日:2020-11-25
Applicant: HUSQVARNA AB
Inventor: Robert Lerbro
IPC: H01M50/262 , B23D45/16 , B23D57/02 , B25F5/00 , B25F5/02 , B26B25/00 , B27B17/02 , B28D1/04 , F16F7/10 , F16F15/08 , H01M10/613 , H01M10/6235 , H01M10/6556 , H01M10/6563 , H01M10/6566 , H01M50/244 , H01M50/247 , H01M50/296 , B28D1/08 , F16F15/04
Abstract: A battery compartment battery lock mechanism (700) comprising a locking member (710) rotatably supported on a shaft (720) and comprising a leading edge portion (750) arranged to enter a recess (760) formed in a battery (220) to lock the battery in position, The leading edge portion (750) has an arcuate form with a curvature corresponding to that of a circle segment with radius corresponding to the distance from the leading edge portion (750) to the center of the shaft (720) The recess (760) formed in the battery (220) comprises a surface (770) arranged to engage the leading edge portion (750), wherein the surface (770) has an arcuate form to match that of the leading edge portion (750). The invention further comprises an electrically powered hand-held work tool comprising such a battery lock mechanism.
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公开(公告)号:US20250007058A1
公开(公告)日:2025-01-02
申请号:US18885240
申请日:2024-09-13
Applicant: Hilti Aktiengesellschaft
Inventor: Robert STANGER , Markus HUNGER
IPC: H01M50/213 , H01M10/613 , H01M10/6235 , H01M10/6551
Abstract: A method for manufacturing a rechargeable battery pack for an electric handheld power tool, wherein the rechargeable battery pack has a housing including a plurality of preferably cylindrical rechargeable battery cells, wherein the rechargeable battery cells are surrounded, at least in sections, by a thermally conductive potting material for the purpose of dissipating heat.
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公开(公告)号:US20240413461A1
公开(公告)日:2024-12-12
申请号:US18810192
申请日:2024-08-20
Applicant: MILWAUKEE ELECTRIC TOOL CORPORATION
Inventor: Mackenzie J. Nick
IPC: H01M50/247 , H01M10/6235 , H02J7/00
Abstract: A power tool battery pack receptacle including a cavity in which a portion of a battery pack is receivable, the cavity defined in part by a first wall, a second wall, an intermediate wall coupled between the first wall and the second wall. The receptacle includes insertion end, a closed end opposite the insertion end along an insertion axis of the battery pack, a rail, and a groove. The rail is coupled to the first wall and extends between the insertion end and the closed end and defines a guide surface. The groove is defined between the intermediate wall and the guide surface and has a lateral wall coupled between the intermediate wall and the guide surface. An insert is positioned adjacent the closed end and configured to apply a biasing force on the battery pack to stabilize the battery pack within the receptacle and prevent relative movement therebetween.
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公开(公告)号:US20240222736A1
公开(公告)日:2024-07-04
申请号:US18603321
申请日:2024-03-13
Applicant: MAKITA CORPORATION
Inventor: Hitoshi SUZUKI , Masaaki FUKUMOTO
IPC: H01M10/615 , H01M10/44 , H01M10/48 , H01M10/6235 , H01M50/209 , H01M50/247 , H01M50/271 , H01M50/55 , H01M50/553 , H01M50/566
CPC classification number: H01M10/615 , H01M10/443 , H01M10/486 , H01M10/6235 , H01M50/247 , H01M50/209 , H01M50/271 , H01M50/55 , H01M50/553 , H01M50/566
Abstract: A battery pack (174; 174′) having at least one all-solid-state battery cell for driving a motor of a battery-powered portable tool (1) can be charged using regenerated electric power generated by an electric motor (196). However, charging with regenerated electric power might cause damage to the battery pack if the battery cells are not in a state capable of being recharged with regenerated electric power. Therefore, the battery pack includes a battery-condition determination circuit that is configured or programmed to: (i) assess the condition of the at least one all-solid-state battery cell and (ii) generate an electrical signal that indicates whether or not the battery pack is in a state that permits charging using the regenerated electric power.
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公开(公告)号:US20240145809A1
公开(公告)日:2024-05-02
申请号:US18469915
申请日:2023-09-19
Applicant: Nanjing Chervon Industry Co., Ltd.
Inventor: Xiaohong Lin , Keqiong Zhong , Jing Li , Pingbo Shi , Yingdong Zhang
IPC: H01M10/6235 , H01M10/42 , H01M50/284 , H01M50/545
CPC classification number: H01M10/6235 , H01M10/4257 , H01M50/284 , H01M50/545
Abstract: A battery pack includes: a housing assembly; plurality of cells disposed in the housing assembly; a circuit board disposed in the housing assembly and connected to the plurality of cells; and at least two electrical terminals connected to the circuit board and configured to be coupled to an apparatus terminal on an external device when the battery pack is connected to the external device. The at least two electrical terminals include a Type-C terminal and a metal terminal fixed on a terminal block, where output power of the Type-C terminal is greater than 65 W, a power device for supplying power to the Type-C terminal is disposed on the circuit board, and the terminal block and the power device are disposed on the same mounting surface of the circuit board.
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公开(公告)号:US11600869B2
公开(公告)日:2023-03-07
申请号:US16870153
申请日:2020-05-08
Applicant: Andreas Stihl AG & Co. KG , Murata Manufacturing Co., Ltd.
Inventor: Daniel Sauerteig , Julien Scholl , Kenichi Ozawa , Takayuki Sato , Daiki Misawa , Yosuke Kono , Masaki Kuratsuka
IPC: H01M10/48 , H01M10/6235 , H01M50/247 , H01M50/211 , H01M10/0585 , H01M10/42 , H01M50/209 , H01M50/569
Abstract: A battery pack supplies an electrically driven treatment apparatus with an electric driving power and includes: a first stack limiting structure and a second stack limiting structure, wherein the second stack limiting structure is disposed opposite and with a fixed distance to the first stack limiting structure; a plurality of pouch cells, wherein the pouch cells are disposed in a stack, wherein the stack is disposed between the first stack limiting structure and the second stack limiting structure and a height of the stack in a stack direction is limited by the first stack limiting structure and the second stack limiting structure; and a sensor arrangement. The sensor arrangement is disposed in the stack. The sensor arrangement extends across a major part of a surface of the pouch cells and is configured such that the height of the stack across the extension is approximately equal. The sensor arrangement has a pressure sensor. The pressure sensor is configured for detecting a pressure force acting in the stack direction on the pouch cells.
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公开(公告)号:US11583052B2
公开(公告)日:2023-02-21
申请号:US17348674
申请日:2021-06-15
Applicant: Spur Concepts Inc
Inventor: Jonathan Friedman , Ryan Goldman , Zachary Rattner
IPC: A45D20/12 , A45D20/10 , F26B21/00 , H01M10/613 , H01M10/623 , H01M10/643 , H01M10/6563 , H01M50/213 , F26B21/10 , F26B23/04 , F26B23/06 , H01M10/6235
Abstract: A battery powered blow dryer having a novel battery cooling feature to simultaneously cool the batteries and improve hair dryer performance.
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公开(公告)号:US20230046437A1
公开(公告)日:2023-02-16
申请号:US17793585
申请日:2020-12-11
Inventor: Itaru MURUI
IPC: H01M10/6235 , H01M10/647 , H01M10/658
Abstract: A battery pack is a battery pack for an electric tool. The battery pack is attachable to a tool body. The tool body includes a tool attachment part to which a tool is to be attached and a driver configured to drive the tool. The battery pack includes an electricity accumulator, a battery case, and a cushioning structure. The electricity accumulator includes an all-solid-state battery. The electricity accumulator is configured to accumulate electric power to be supplied to the driver. The battery case houses the electricity accumulator. The cushioning structure is configured to suppress acceleration acting on the electricity accumulator from being changed.
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公开(公告)号:US11495844B2
公开(公告)日:2022-11-08
申请号:US16970527
申请日:2019-03-25
Applicant: Robert Bosch GmbH
Inventor: Andreas Sedlmayr , Axel Hubertz , Marc-Alexandre Seibert , Marcin Rejman , Wolf Zahn
IPC: H02J7/00 , H01M10/6235 , H01M10/613 , H01M10/6563 , H01M10/44
Abstract: A charging device for charging an energy accumulator unit, in particular a battery pack, of a hand-held power tool. The charging device includes a cooling device for cooling the energy accumulator unit, in particular the battery pack, a charger housing, which at least in sections forms an outer housing, and a receptacle unit which may detachably accommodate the energy accumulator unit, and is provided to accommodate the energy accumulator unit in a connected state and/or hold it at the charging device. The cooling device is provided to form an airflow directed onto the energy accumulator unit in such a way that the airflow at least in sections flows around the energy accumulator unit.
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10.
公开(公告)号:US20220212330A1
公开(公告)日:2022-07-07
申请号:US17605463
申请日:2020-11-25
Applicant: HUSQVARNA AB
Inventor: Torbjörn Almqvist , Paul Johansson
IPC: B25F5/00 , B28D1/04 , H01M10/613 , H01M10/6563 , H01M10/6235
Abstract: A handheld work tool comprising a cutting tool (130), an electric motor (140) having a rotational axis and being arranged to drive the cutting tool (130), a battery compartment (150) for a battery (220) arranged to power the electric motor (140), a support arm (240) and a belt guard (115). The support arm (240) is arranged to support the circular cutting tool (130) on a first end (241) of the support arm, and to support the electric motor (140) at a second end of the support arm (242), opposite to the first end (241). The belt guard (115) and at least a part of the support arm (240) are configured to enclose an interior space (340), where the hand-held work tool (100, 200, 800, 1000) comprises a fan (145), configured to generate a flow of cooling air. A portion of the flow of cooling air is arranged to be guided via at least one opening (310) into the interior space (340), thereby increasing an air pressure in the interior space (340) above an ambient air pressure level.
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