| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an electric work machine in which board configuration is simplified and waterproof treatment can easily be performed on a board, and thereby a control board can be miniaturized and the cost thereof is reduced.SOLUTION: An electric work machine houses a brushless motor, drives cutters etc., by the power of the rotary shaft of the brushless motor, and includes a control board 30 provided with a plurality of switching elements 37 for driving and controlling the brushless motor, and a control circuit for controlling them . A cooling fin 32 for cooling switching elements 37 is provided in the control board 30, motor power transmission lines 36 for supplying a drive current to the brushless motor are connected to the control board 30, the control board 30 is housed in a tray-shaped container 31, the switching elements 37 and the cooling fin 32 on the control board are provided on the surface of the control board in the opening side of the tray-shaped container 31, and the motor power transmission line 36 is connected to the surface of the control board in the opening side of the tray-shaped container 31, and is extracted from the opening side of tray-shaped container 31.</p> |
