Power tool

Power tool

  • CN 105,794,411 B
  • Filed: 12/30/2014
  • Issued: 04/07/2020
  • Est. Priority Date: 12/30/2014
  • Status: Active Grant
First Claim
Patent Images

1. A power tool, comprising:

  • the functional device comprises a functional component for realizing the function of the tool, an operation component for the operation of a user and a functional shell for forming the functional component and the operation component into a whole;

    a power device detachably mountable to the functional device and providing power to the functional device;

    the power device comprises;

    the power source at least comprises a battery;

    a prime mover for driving the functional component to perform a tool function;

    a power housing for housing the prime mover;

    the power shell is also provided with a battery slot for accommodating the power source, and the power source is detachably mounted in the battery slot;

    the prime mover is a motor, and when the power source and the motor are both arranged in the power shell, the power source and the prime mover form a whole which can be detachably mounted to the functional shell together;

    wherein the ratio of the battery capacity to the power plant volume is greater than or equal to 7000Wh/m3And is less than or equal to 750000Wh/m3

    The battery is detachably inserted into the battery slot along a first direction, the prime mover comprises a motor, the motor is provided with an output shaft rotating by taking a first axis as a shaft, and the first direction is parallel to the first axis;

    when the battery is positioned in the battery slot, the value range of the ratio of the overlapping size of the battery and the motor in the first direction to the size of the motor in the first direction is more than or equal to 20% and less than or equal to 100%;

    the power tool is a push mower, and the functional assembly comprises;

    a mowing element drivable by the power plant mounted to the functional device;

    the operating assembly includes;

    an operating handle capable of controlling the power unit mounted to the function unit;

    the functional device further comprises;

    the walking device at least comprises a host and a wheel set which can enable the host to move;

    the mowing element is rotatably mounted to the main machine;

    the operating handle is connected to the host;

    wherein said operating handle, said mowing element, and said traveling apparatus form a unitary body that moves together when said power housing, said power source, and said prime mover form a unitary body that is removed;

    the number of the batteries is 2, the number of the motors is 1, the power shell forms two battery slots, the two batteries are respectively inserted into the two battery slots, the motor is arranged in the area of the power shell between the two battery slots, the battery further includes a battery electrical interface located on a side of the battery proximate the motor, the battery electrical interface is located between the battery and the electric machine, the battery electrical interface is located between two of the batteries, the power shell is provided with a device electrical interface for docking with the battery electrical interface, the device electrical interface is located between the motor and the battery and directly opposite the battery electrical interface, the power tool further comprises a power supply circuit, and the power supply circuit is arranged between the two batteries.

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