-
公开(公告)号：US20220123565A1
公开(公告)日：2022-04-21
申请号：US17275504
申请日：2019-09-12
Applicant: MAKITA CORPORATION
Inventor： Yoshitaka ICHIKAWA , Akihiro NAKAMOTO , Minoru GYODA , Hayato KANO , Toru YAMADA , Hitoshi SUZUKI
Abstract: A battery pack is configured to supply electric power to an electric work machine, such as a power tool or outdoor power equipment. The battery pack includes a first battery-signal terminal and a second battery-signal terminal. The first battery-signal terminal outputs, to the electric work machine, a first signal indicating that discharging is to be prohibited or permitted. The second battery-signal terminal outputs, to the electric work machine, a second signal indicating that discharging is to be prohibited or permitted. Thus, two communication paths are provided for transmitting signals to permit or prohibit discharging of the battery pack.
-
公开(公告)号：US20230318314A1
公开(公告)日：2023-10-05
申请号：US18126584
申请日：2023-03-27
Applicant: MAKITA CORPORATION
Inventor： Tadahiko KOBAYAKAWA , Hayato KANO , Yoshitaka ICHIKAWA
CPC classification number: H02J7/0013 , H02J7/007182 , H02J7/00045 , H01M10/46 , A01D34/78 , H02J7/0047 , H01M10/486 , H02J7/0063 , H02P23/14 , H02J7/007194 , H01M2010/4278 , A01D2101/00 , A01D34/90 , H01M2220/30
Abstract: A system in one aspect of the present disclosure includes a battery pack and an electric work machine. The battery pack includes a battery, a first interface, a first memory and a first controller. The first controller is configured to transmit battery data identifying a type of the battery pack. The electric work machine includes a motor, a second interface, a switching element, a manual switch, a second memory and a second controller. The second controller is configured to transmit electric apparatus data identifying a type of the electric work machine.
-
Patent Agency Ranking
公开(公告)号：US20220190620A1
公开(公告)日：2022-06-16
申请号：US17547882
申请日：2021-12-10
Applicant: MAKITA CORPORATION
Inventor： Tomoki HORI , Hayato KANO
Abstract: A battery pack according to one aspect of the present disclosure includes an attaching portion, a battery, a voltage detection circuit, a current acquisition circuit, a next current calculation circuit, a first charging stop circuit, and a second charging stop circuit. The attaching portion is electrically and mechanically connected to the battery charger. The first charging stop circuit stops charging of the battery in response to a first condition being satisfied. The second charging stop circuit stops the charging of the battery in response to a second condition different from the first condition being satisfied.
-
公开(公告)号：US20240106012A1
公开(公告)日：2024-03-28
申请号：US18529529
申请日：2023-12-05
Applicant: MAKITA CORPORATION
Inventor： Tadahiko KOBAYAKAWA , Hiroki UESUGI , Hayato KANO
IPC: H01M10/42 , G01R31/3828 , H01M10/44 , H01M10/48
CPC classification number: H01M10/425 , G01R31/3828 , H01M10/44 , H01M10/486 , H01M2010/4278
Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.
-
公开(公告)号：US20240039308A1
公开(公告)日：2024-02-01
申请号：US18267484
申请日：2021-12-15
Applicant: MAKITA CORPORATION
Inventor： Tomoki HORI , Hayato KANO
IPC: H02J7/00 , H01M10/48 , H01M50/583
CPC classification number: H02J7/0031 , H02J7/0047 , H02J7/0063 , H02J7/00712 , H02J7/0013 , H01M10/482 , H01M50/583 , B25F5/008
Abstract: A battery pack includes a battery, a coupling portion, a connection determiner, a receiver, and a prohibition range controller. The prohibition range controller varies a prohibition range depending on the connection or non-connection of the electric work machine that is determined by the connection determiner, or the specification of the electric work machine connected to the coupling portion. The prohibition range is defined by a current range and a voltage range. A discharge from the battery is prohibited in the prohibition range.
-
公开(公告)号：US20210098832A1
公开(公告)日：2021-04-01
申请号：US17022193
申请日：2020-09-16
Applicant: MAKITA CORPORATION
Inventor： Tadahiko KOBAYAKAWA , Hiroki UESUGI , Hayato KANO
IPC: H01M10/42 , H01M10/44 , G01R31/3828 , H01M10/48
Abstract: A battery pack in one aspect of the present disclosure includes a battery and a controller provided with a counter value. During discharge of the battery pack, the controller calculates an addition value in accordance with a total number of use of the battery pack under a specified condition. The controller updates the counter value by adding the addition value. The controller prohibits the discharge of the battery pack in response to the counter value reaching a protection threshold.
-
公开(公告)号：US20200381930A1
公开(公告)日：2020-12-03
申请号：US16868055
申请日：2020-05-06
Applicant: MAKITA CORPORATION
Inventor： Hayato KANO , Toru YAMADA , Minoru GYODA
Abstract: A battery pack (60), which is rechargeable by a charger (600), includes one or more battery cells (60), a control part (620), a communication part (620, 400, 15), and a switching-control part (620). The control part is configured to be switchable to any of a plurality of operation states, including a controlled-operation state and a low-power operation state. The switching-control part: compares a communication-stop time (Ta1) to a state-switching determination value (Tth1); does not switch the operation state of the control part if the communication-stop time is less than or equal to the state-switching determination value; and does switch the operation state of the control part to the low-power operation state if the communication-stop time exceeds the state-switching determination value, whereby power consumption of the control part can be reduced upon completion, e.g., of a charging operation.
-
-
-
-
-
-
Search Results
7
records
(took 0.014 seconds)
