Patent ID: 9198347
Filing Date: 2015-12-01
Classification: A01D,H02P

Abstract:
1. A work machine, comprising: an operation rod configured to be separated into at least a first partial rod and a second partial rod; a front unit disposed at a front end of the operation rod and configured to attach a tool; a rear unit disposed at a rear end of the operation rod and configured to attach a battery; a handle provided on a middle portion of the operation rod; a motor disposed in the front unit and configured to drive the tool; at least one sensor disposed in the front unit and configured to detect a condition index of the motor; a motor controller disposed in the rear unit, in order to reduce the size and weight of the front unit, and electrically coupled with the battery; at least one motor power line disposed along the operation rod and configured to transmit electric power outputted from the motor controller to the motor; at least one sensor signal line disposed along the operation rod and configured to transmit a signal outputted from the at least one sensor to the motor controller; and a pair of electric connectors including a first electric connector disposed on the first partial rod and a second electric connector disposed on the second partial rod, the first and second electric connectors being configured to be electrically connected to each other when the first and second partial rods are coupled with each other, wherein the motor power line comprises a first partial motor power line disposed along the first partial rod and electrically coupled with the first electric connector, and a second partial motor power line disposed along the second partial rod and electrically coupled with the second electric connector, the sensor signal line comprises a first partial sensor signal line disposed along the first partial rod and electrically coupled with the first electric connector, and a second partial sensor signal line disposed along the second partial rod and electrically coupled with the second electric connector, the first electric connector comprises a plurality of first electric terminals, each of which is coupled with corresponding one of the first partial motor power line or the first partial sensor signal line, the second electric connector comprises a plurality of second electric terminals, each of which is coupled with corresponding one of the second partial motor power line or the second partial sensor signal line, and each of the plurality of first electric terminals is electrically connected to corresponding one of the plurality of second electric terminals when the first and second partial rods are coupled with each other.