A stator, a circuit board for supplying a current to the stator, a rotor rotating by the current supplied to the stator, a lead wire connecting an external power supply to the circuit board, and a first mold resin covering at least a portion of the stator, at least a portion of the circuit board, and a portion of the lead wire, and a second mold resin covering a predetermined range from the first mold resin of the lead wire led out from the first mold resin are provided. The second mold resin has the hardness lower than the hardness of the first mold resin.

A canned motor device includes a base, a fixed seat, a motor unit and a motor cover. Each of the base and the fixed seat is formed in a shape of a hollow cylinder that surrounds an axis. The base has an inner base surface surrounding the axis and defining an accommodating space. The fixed seat is disposed in the accommodating space and has an inner seat surface, an outer seat surface, a plurality of recesses and a plurality of first heat-dissipating fins. The recesses are indented from the outer seat surface and extend toward the inner seat surface. Each of the first heat-dissipating fins is located between two adjacent ones of the recesses.

A canned motor device includes a base, a fixed seat, a motor unit and a motor cover. Each of the base and the fixed seat is formed in a shape of a hollow cylinder that surrounds an axis. The base has an inner base surface surrounding the axis and defining an accommodating space. The fixed seat is disposed in the accommodating space and has an inner seat surface, an outer seat surface, a plurality of recesses and a plurality of first heat-dissipating fins. The recesses are indented from the outer seat surface and extend toward the inner seat surface. Each of the first heat-dissipating fins is located between two adjacent ones of the recesses.

A canned motor device includes a casing, a rear cover and a leak detector. The rear cover has a main body portion having a cover end wall, and an extended disk portion cooperating with the main body portion to define an accommodating space. The casing and the rear cover cooperatively define an annular groove, a liquid-receiving space and a plurality of guiding grooves therebetween. The leak detector is disposed on one side of the cover end wall opposite to the liquid-receiving space for detecting a change in electrostatic capacity between the leak detector and the liquid-receiving space. The annular groove communicates with the liquid-receiving space, the accommodating space and each of the guiding grooves.

A system includes a tool and an emergency response vehicle transitionable between a motive gear and a non-motive gear. The emergency response vehicle includes a mount for removably securing the tool to the emergency response vehicle. The system further includes a scanner coupled to the emergency response vehicle and operable to detect the tool when the tool is secured to the emergency response vehicle by the mount and a controller communicatively coupled to the scanner. The system is configured to determine that the emergency response vehicle has transitioned between a non-motive gear and a motive gear and in response to determining that the emergency response vehicle has transitioned between the non-motive gear and the motive gear, cause the scanner to scan the emergency response vehicle for the tool to determine whether the tool is secured to the emergency response vehicle.

A system includes a tool and an emergency response vehicle transitionable between a motive gear and a non-motive gear. The emergency response vehicle includes a mount for removably securing the tool to the emergency response vehicle. The system further includes a scanner coupled to the emergency response vehicle and operable to detect the tool when the tool is secured to the emergency response vehicle by the mount and a controller communicatively coupled to the scanner. The system is configured to determine that the emergency response vehicle has transitioned between a non-motive gear and a motive gear and in response to determining that the emergency response vehicle has transitioned between the non-motive gear and the motive gear, cause the scanner to scan the emergency response vehicle for the tool to determine whether the tool is secured to the emergency response vehicle.

An electric work machine (1; 201) includes: a motor housing (6; 212) having a tube part (6C; 212C) and a bottom part (6M; 212M); a brushless motor (5; 228) having a stator (20), which has a first contact surface (58F; 258F), and a rotor (21; 231) disposed in the stator; a baffle plate (25; 285); and an output shaft (31; 292). The stator includes a tube-shaped stator core (50) having a ring-shaped second contact surface (50S; 250S) that is opposite of the first contact surface, and coils (56; 256) wound on the stator core. The stator is held by the motor housing with the first contact surface in contact with the bottom part. A protruding part (25S; 285S) of the baffle plate contacts the entire circumference of the second contact surface of the stator core and is fixed to the motor housing by three or more screws (68; 288).

An electric work machine (1; 201) includes: a motor housing (6; 212) having a tube part (6C; 212C) and a bottom part (6M; 212M); a brushless motor (5; 228) having a stator (20), which has a first contact surface (58F; 258F), and a rotor (21; 231) disposed in the stator; a baffle plate (25; 285); and an output shaft (31; 292). The stator includes a tube-shaped stator core (50) having a ring-shaped second contact surface (50S; 250S) that is opposite of the first contact surface, and coils (56; 256) wound on the stator core. The stator is held by the motor housing with the first contact surface in contact with the bottom part. A protruding part (25S; 285S) of the baffle plate contacts the entire circumference of the second contact surface of the stator core and is fixed to the motor housing by three or more screws (68; 288).

A rotation driving device includes: a body 10, made of resin, and having an accommodation hole 13 in a cylindrical shape with an axis S as a center; a motor M, comprising a rotor 60 provided in an accommodation hole of the body and rotating around the axis and a rotation shaft 40 integrally rotating around the axis with the rotor and extending in an axial direction; a first bearing B1 fixed to an end side of the body and a second bearing B2 fixed to the other end side of the body in the axial direction, so as to rotatably support the rotation shaft; and a first cover member 110 connected to the one end side of the body and a second cover member 120 connected to the other end side of the body.

A superconducting generator including an armature configured to be rotated via a shaft and a stationary field disposed concentric to and radially outward from the armature. The stationary field including a superconducting field winding and a vacuum vessel having an inner wall of one of a non-magnetic material or a paramagnetic material facing the armature, an opposed outer wall of a ferromagnetic material and a plurality of sidewalls coupling the inner wall and the opposed outer wall. The superconducting field winding is disposed in the vacuum vessel. A wind turbine and method are additionally disclosed. The wind turbine includes a rotor having a plurality of blades. The wind turbine further includes a shaft coupled to the rotor. Moreover, the wind turbine includes the superconducting generator coupled to the rotor via the shaft.