ENGINE DRIVING WORKING MACHINE

• Main Authors: SAKAKIBARA YASUTOSHI, MARUOKA TADASHI
• Format: Patent
• Language: English; Japanese
• Published: 25.07.2019
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; COMBUSTION ENGINES; COMBUSTION ENGINES IN GENERAL; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERATION; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INTERNAL-COMBUSTION PISTON ENGINES; LIGHTING; MACHINE TOOLS; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SOLDERING OR UNSOLDERING; TRANSPORTING; WEAPONS; WELDING; WORKING BY LASER BEAM

To avoid reduction of output voltage of an AC output terminal even in a case where a DC power source and an AC power source are simultaneously used.SOLUTION: An engine welding machine 1 (engine driving working machine) incudes a power generation body 12 which is driven by an engine 11, and has a function of outputting, through an AC output terminal 23, AC power generated by the power generation body 12, and a function of rectifying, at a rectifier 31, the AC power generated by the power generation body 12 to DC power and outputting the DC power through a DC output terminal 33. An output control unit 43 controls the rectifier 31 to reduce DC output current to be outputted from the DC output terminal 33 when AC current outputted from the AC output terminal 23 exceeds a predetermined first threshold.SELECTED DRAWING: Figure 1 【課題】直流電源と交流電源とが同時に使用された場合においても交流出力端子の出力電圧の低下を回避する。【解決手段】エンジン溶接機１（エンジン駆動作業機）は、エンジン１１によって駆動される発電体１２を有し、発電体１２が発生する交流電力を交流出力端子２３から出力する機能と、発電体１２が発生する交流電力を整流器３１で整流して、直流電力として直流出力端子３３から出力する機能とを備える。そして、出力制御部４３は、交流出力端子２３から出力される交流出力電流が所定の第１閾値を超えた場合に、直流出力端子３３から出力される直流出力電流を減少させるように整流器３１を制御する。【選択図】図１