Charging Device and Charging System
    2.
    发明公开

    公开(公告)号:US20240348071A1

    公开(公告)日:2024-10-17

    申请号:US18754162

    申请日:2024-06-26

    Abstract: A charging device includes a housing, a plurality of charging grooves, a handle, a first wheel and a supporting assembly. Wherein, the plurality of the charging grooves is arranged side by side inside the housing for accommodating an inserted battery pack. The handle is for a user to hold and is movably connected with the housing. The first wheel may be rotatably arranged at a bottom of the housing. The supporting assembly is arranged at the bottom of the housing. When the charging device is pulled, the handle is held, and the charging device is inclined and slides relative to a ground by the first wheel. When the charging device is placed horizontally, the first wheel and the supporting assembly are in contact with the ground.

    BATTERY PACK, POWER TOOL SYSTEM AND COMMUNICATION SYSTEM THEREOF

    公开(公告)号:US20240332983A1

    公开(公告)日:2024-10-03

    申请号:US18613743

    申请日:2024-03-22

    Abstract: A battery pack electrically comprising a temperature terminal and is configured such that when an external device is electrically connected to the battery pack, the device can detect the temperature of the battery pack, and the battery pack is further configured to receive a PWM signal from the external device when in the electrical connection state, and, on the basis of the PWM signal, determine the type and/or operating state of the external device. Also disclosed, a power tool system comprising the battery pack, as well as a communication system for the battery pack and the system. With the battery pack and the power tool system, it is possible to perform both a temperature sampling function and a function of identifying external device information only by a temperature terminal of the battery pack, thus same have the advantages of a simple and compact structure and low cost.

    Power management device and method

    公开(公告)号:US12068604B2

    公开(公告)日:2024-08-20

    申请号:US18057841

    申请日:2022-11-22

    Abstract: The present invention relates to an electrical power management device (300) capable of preventing or allowing the passage of current to a power grid (70). The present invention also relates to an electrical power management method (400). Particularly, the device (300) of the present invention is capable of performing electrical data telemetry and reporting it to a control center. The device (300) receives, from a power generation system (50), a source of alternating current through a power grid circuit (80), wherein the device (300) comprises: a control unit (10); a data transmission and reception module (20) configured to receive an external command signal; and at least one switching element (30a, 30b); the control unit (10) being adapted to actuate the at least one switching element (30a, 30b) so as to selectively open and close the power grid circuit (80) upon receipt of the external command signal to enable or prevent the passage of alternating current.

    Electronic Device
    6.
    发明公开
    Electronic Device 审中-公开

    公开(公告)号:US20240275184A1

    公开(公告)日:2024-08-15

    申请号:US18014268

    申请日:2022-04-27

    CPC classification number: H02J7/00309 H02J7/0013 H02J7/0045 H02J7/007192

    Abstract: This application provides an electronic device in which a distance between a connection end of a first battery and a first power conversion module corresponding to the first battery is within a certain small range, which can reduce a length of a current path between the first power conversion module and the first battery, and avoid corresponding heat generation. In addition, a distance between the first power conversion module and a processor is relatively long.

    Charge protection circuit, charger, electronic device, and charge protection method

    公开(公告)号:US12062931B2

    公开(公告)日:2024-08-13

    申请号:US17539817

    申请日:2021-12-01

    CPC classification number: H02J7/00308 H02J7/00302 H02J7/00304 H02J7/00309

    Abstract: Disclosed is a charge protection circuit including: a switch that switches between allowing and not allowing power supply from an external power source to a charging circuit that supplies power for charging a rechargeable battery; a detector that detects at least one of a current flowing from the charging circuit to the rechargeable battery and a voltage between two electrodes of the rechargeable battery; a determiner that determines whether a detection result of the detector is abnormal; and a controller that, in response to the determiner determining that the detection result of the detector is abnormal, causes the switch to switch to an interrupting state so as to interrupt power supply to the charging circuit.

    Charging circuit and electronic device

    公开(公告)号:US12046932B2

    公开(公告)日:2024-07-23

    申请号:US17390361

    申请日:2021-07-30

    Inventor: Zhendong Li

    CPC classification number: H02J7/00309 H02J7/00308

    Abstract: A charging circuit and an electronic device are provided, where the charging circuit includes: a charging receptacle, where a connection path is provided between a charging terminal of the charging receptacle and a to-be-charged battery; a temperature control and surge protection circuit, where the temperature control and surge protection circuit includes: a switch tube, where the switch tube includes a first terminal, a second terminal, and a control terminal that controls the first terminal and the second terminal to be turned on or off, the first terminal is connected to the connection path, and the second terminal is grounded; a temperature control circuit, configured to acquire temperature data of the charging receptacle and control a working status of the switch tube; a voltage control circuit, with one end connected to the control terminal of the switch tube, and the other end connected to the connection path.

    BATTERY SYSTEM
    10.
    发明公开
    BATTERY SYSTEM 审中-公开

    公开(公告)号:US20240178677A1

    公开(公告)日:2024-05-30

    申请号:US18281922

    申请日:2022-11-01

    Inventor: Sunwoo YOON

    Abstract: Discussed is a battery system including: a battery pack including a plurality of battery cells; a battery monitoring integrated circuit (BMIC) configured to monitor each of a plurality of cell voltages of the plurality of battery cells; a plurality of balancing batteries each charged by a target battery cell requiring a cell balancing among the plurality of battery cells; a power conversion unit including a direct-current to direct-current (DC-DC) converter receiving voltages from the plurality of balancing batteries and configured to convert the voltages into output voltages; and a power supply unit configured to supply the output voltages to the BMIC when the output voltages have a voltage equal to or greater than a predetermined level for driving the BMIC.

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