Abstract: A cooling medium flow path structure is for use at a joint of a robot. The joint of the robot includes an N-th link and an N+1-th link. A tubular projection extends from a first wall constituting the N-th link, and a motor is located on the first wall. The cooling medium flow path structure is annularly or tubularly shaped such that an inner peripheral surface of the cooling medium flow path structure is located outside an outer peripheral surface of the motor. The cooling medium flow path structure includes an internal cooling medium flow path through which a cooling medium flows.

Abstract: A cooling medium flow path structure according to the present disclosure is for use at a joint of a robot. The joint of the robot (101) includes an N-th link and an N+1-th link. A tubular projection (31c) extends from a first wall (31a) constituting the N-th link, and a motor (50) is located on the first wall (31a). The cooling medium flow path structure is annularly or tubularly shaped such that an inner peripheral surface (7b) of the cooling medium flow path structure is located outside an outer peripheral surface (5) of the motor (50). The cooling medium flow path structure includes an internal cooling medium flow path (71a) through which a cooling medium flows.