ELECTRIC WORK MACHINE

To provide an electric work machine that can achieve improvement in workability and low power consumption with good balance.SOLUTION: An electric work machine 1 comprises a motor 6 being a brushless motor, an inverter circuit 43 for distributing electricity to the motor 6, and a control part 40 for...

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Bibliographische Detailangaben
1. Verfasser:	KUMAKURA TAKESHI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR ELECTRICITY GENERATION HAND TOOLS MANIPULATORS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS TRANSPORTING
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Beschreibung
Zusammenfassung:	To provide an electric work machine that can achieve improvement in workability and low power consumption with good balance.SOLUTION: An electric work machine 1 comprises a motor 6 being a brushless motor, an inverter circuit 43 for distributing electricity to the motor 6, and a control part 40 for controlling the inverter circuit 43. The control part 40 can execute first control. In the first control, when a load of the motor 6 exceeds a first threshold, a lead angle is widened, and when the load exceeds a second threshold higher than the first threshold, the lead angle is narrowed.SELECTED DRAWING: Figure 8 【課題】作業性の改善と低消費電力をバランス良く実現可能な電動作業機を提供する。【解決手段】電動作業機１は、ブラシレスモータであるモータ６と、モータ６に通電するためのインバータ回路４３と、インバータ回路４３を制御する制御部４０と、を備える。制御部４０は、第１制御を実行可能であり、前記第１制御では、モータ６の負荷が第１閾値を超えると進角を大きくし、前記負荷が前記第１閾値よりも高い第２閾値を超えると進角を小さくする。【選択図】図８