| 摘要 |
PROBLEM TO BE SOLVED: To provide a battery type electric sprayer capable of stably performing spraying under a pressure required by a user even when using various different nozzle holes and capable of on-off operation of the rotation of a motor only by opening and closing a cock. SOLUTION: The battery type electric sprayer is equipped with a pressure setting part 30 for setting the discharge pressure of a liquid discharged from the nozzle hole 24, a pressure sensor 38 for detecting the pressure (the pressure in a flow path) in a discharge hose 16, and a control part 34 for PI-controlling the number of revolutions of the motor 20 so that the pressure of the liquid discharged from the nozzle hole 24 is made constant by increasing the duty value of PWM (pulse width modulation) control when the pressure detected by the pressure sensor 38 is lower than the set pressure by the pressure setting part 30 and decreasing the duty when the pressure is higher. COPYRIGHT: (C)2011,JPO&INPIT |
