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    Sensor to detect a mechanical stress on the battery pack
    1.
    发明授权
    Sensor to detect a mechanical stress on the battery pack 有权

    公开(公告)号：US11740146B2

    公开(公告)日：2023-08-29

    申请号：US17619419

    申请日：2020-06-17

    Applicant: Hilti Aktiengesellschaft

    Inventor： Varnim Goyal ,  Bernd Ziegler

    IPC: G01L5/00 ,  G01R31/385 ,  B25F5/00 ,  G01L1/16 ,  G01P15/00 ,  G01P15/18

    CPC classification number: G01L5/0052 ,  B25F5/00 ,  G01L1/16 ,  G01P15/001 ,  G01P15/18 ,  G01R31/385

    Abstract: A method for controlling a system including a power-tool and a battery having energy storage cells, wherein the system includes an acceleration sensor, a piezoelectric sensor, a controlling device, signal transmitter and a device for measuring a voltage. Method includes the steps:



    Determining vibration values;
    Determining that the system is free-falling;
    Determining an impact of the system by detecting an acceleration value in the X, Y and Z direction exceeding a first predetermined threshold value; and
    Determine a traveling distance between detecting an acceleration value in the X, Y and Z direction being equal to a predetermined range and detecting an acceleration value in the X, Y and Z direction exceeding the first predetermined threshold value.




    A system for carrying out the method is also provided.

    Apparatus for detecting a critical fall
    4.
    发明授权
    Apparatus for detecting a critical fall 有权

    公开(公告)号：US12259404B2

    公开(公告)日：2025-03-25

    申请号：US17761519

    申请日：2020-09-21

    Applicant: Hilti Aktiengesellschaft

    Inventor： Varnim Goyal ,  Bernd Ziegler

    IPC: G01F15/18 ,  G01P15/18 ,  H02J7/00

    Abstract: An apparatus contains an inertial body held by three electrical conductors along the three principal inertial axes, wherein a voltage is applied to each of the three electrical conductors and are configured such that when a predetermined acceleration threshold value for the inertial body is reached the conductivity of at least one electrical conductor is impaired such that the reaching of a predetermined threshold value is detectable by the voltage measuring device. A rechargeable battery having an apparatus for detecting a critical fall and a method involving detecting three voltages are also provided.

    Drop protection for a battery
    5.
    发明授权
    Drop protection for a battery 有权

    公开(公告)号：US12212179B2

    公开(公告)日：2025-01-28

    申请号：US17618670

    申请日：2020-06-16

    Applicant: Hilti Aktiengesellschaft

    Inventor： Varnim Goyal ,  Bernd Ziegler

    IPC: H01M10/44 ,  B25F5/00 ,  G01F15/18 ,  G01R31/3835 ,  H01M10/46 ,  H02J7/00

    Abstract: A method for controlling a system including at least one battery having at least one energy storage cell and a power-tool, wherein the system includes at least one acceleration sensor for detecting at least one acceleration value in an X, Y or Z direction, a device for measuring a voltage and a device for discharging the at least one energy storage cell. A system including at least one battery having at least one energy storage cell and a power-tool.

    Rechargeable tool battery, mains-operable hand-held power tool, and tool system
    8.
    发明授权
    Rechargeable tool battery, mains-operable hand-held power tool, and tool system 有权

    公开(公告)号：US10461557B2

    公开(公告)日：2019-10-29

    申请号：US15555882

    申请日：2016-03-10

    Applicant: Hilti Aktiengesellschaft

    Inventor： Bernd Ziegler ,  Holger Cecchin ,  Ralf Meixner

    IPC: H02J7/00 ,  B25F5/00 ,  H02J7/02 ,  H02M3/04 ,  H02M7/04

    Abstract: A rechargeable tool battery (200), in particular for supplying a hand-held power tool (100), including a rechargeable tool battery housing (290), inside which a secondary cell battery (210) having a nominal cell voltage (UN) is situated, the rechargeable tool battery (200) including a rechargeable battery DC-DC converter (220), integrated into the rechargeable tool battery housing (290), which is electrically connected to the secondary cell battery (210), and is designed for raising the nominal cell voltage (UN) to a supply voltage (UV) which is tappable at a rechargeable tool battery terminal (295) of the rechargeable tool battery (200).

    BATTERY FOR A HANDHELD MACHINE TOOL AND METHOD FOR PRODUCING A BATTERY FOR A HANDHELD MACHINE TOOL
    10.
    发明申请
    BATTERY FOR A HANDHELD MACHINE TOOL AND METHOD FOR PRODUCING A BATTERY FOR A HANDHELD MACHINE TOOL 审中-公开
    手持式电动工具电池及手提式电动工具电池生产方法

    公开(公告)号：US20150325826A1

    公开(公告)日：2015-11-12

    申请号：US14801220

    申请日：2015-07-16

    Applicant: Hilti Aktiengesellschaft

    Inventor： Benno Verhaag ,  Bernd Ziegler ,  Hubert Ludwig ,  Michael Brandner ,  Klaus Hauser

    IPC: H01M2/10 ,  H01M10/658 ,  H01M10/6235 ,  H01M2/02

    Abstract: The battery unit according to the invention for a handheld machine tool comprises a number of battery cells, with at least one of the battery cells being embodied as an isolation battery cell, and showing a fire protection jacket comprising an intumescent material. The fire protection jacket surrounds the isolation battery cell at least partially such that the isolation battery cell is surrounded by the fire protection jacket at a predetermined temperature such that the isolation battery cell is thermally insulated.

    Abstract translation: 根据本发明的用于手持式机床的电池单元包括多个电池单元，其中至少一个电池单元被实施为隔离电池单元，并且示出了包括膨胀材料的防火外套。 防火护套至少部分地围绕隔离电池单元，使得隔离电池单元在预定温度下被防火套包围，使得隔离电池单元被隔热。

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