Electric tool

Electric tool

  • CN 105,471,146 A
  • Filed: 09/04/2014
  • Published: 04/06/2016
  • Est. Priority Date: 09/04/2014
  • Status: Active Application
First Claim
Patent Images

1. an electric tool, comprising:

  • Casing;

    Be contained in the motor in casing, for work package provides power;

    Described motor comprises the stator with excitation winding and the rotor with armature winding, described excitation winding and armature winding series connection;

    First power input unit, can be connected with external AC electrical power source thus provide alternating current for motor;

    Second source input unit, can be connected with battery component thus provide direct current for motor;

    Power control unit, controls motor and obtains power supply input by one of the first power input unit and second source input unit.

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