A first U-shaped part that is bent so as to form a pair of opposite surfaces facing each other, and a second U-shaped part that is bent so as to form a pair of opposite surfaces facing each other are provided side by side in a bus bar main body of a neutral conductor bus bar. One of the first pair of opposite surfaces and one of the second pair of opposite surfaces are located in the same plane, and the other of the first pair of opposite surfaces and the other of the second pair of opposite surfaces are located in the same plane. A temperature sensor is retained by being inserted through a gap between the first pair of opposite surfaces and a gap between the second pair of opposite surfaces.

A stator unit includes: a stator core; three-phase coils inserted into slots of the stator core; a neutral point busbar connected to the three-phase coils; a busbar holder made of a resin material and covering at least a part of the neutral point busbar; and a temperature sensor that is fixed to the busbar holder while in contact with the neutral point busbar, the temperature sensor measuring the temperature of the neutral point busbar.

A stator unit includes: a stator core; three-phase coils inserted into slots of the stator core; a neutral point busbar connected to the three-phase coils; a busbar holder made of a resin material and covering at least a part of the neutral point busbar; and a temperature sensor that is fixed to the busbar holder while in contact with the neutral point busbar, the temperature sensor measuring the temperature of the neutral point busbar.

An object is to more surely prevent a temperature sensor inserted into a gap between coils, from slipping out of the gap. A temperature sensor includes: a sensor element including a thermosensitive body, paired electric wires electrically connected to the thermosensitive body, and a covering body having elasticity and covering the thermosensitive body; and a housing including an abutting portion and a supporting portion extending in a direction intersecting with the abutting portion, and the housing holding the sensor element. The covering body protrudes from the abutting portion at a position separated by a predetermined distance from the supporting portion. The paired electric wires are drawn out from the housing in a direction intersecting with the covering body.

An object is to more surely prevent a temperature sensor inserted into a gap between coils, from slipping out of the gap. A temperature sensor includes: a sensor element including a thermosensitive body, paired electric wires electrically connected to the thermosensitive body, and a covering body having elasticity and covering the thermosensitive body; and a housing including an abutting portion and a supporting portion extending in a direction intersecting with the abutting portion, and the housing holding the sensor element. The covering body protrudes from the abutting portion at a position separated by a predetermined distance from the supporting portion. The paired electric wires are drawn out from the housing in a direction intersecting with the covering body.

An electromagnetic coupling device includes an electromagnetic coil, a field core including a recessed portion containing the electromagnetic coil, and a terminal block inserted in a hole passing through the wall of the recessed portion. The terminal block includes a terminal portion projecting outside the field core, a pair of terminals provided at the terminal portion, and a pair of through holes passing through the terminal block via the pair of terminals. The winding start end and winding termination end of the electromagnetic coil pass through the pair of through holes, project from the pair of terminals, and are soldered to the pair of terminals together with a pair of external connection lead wires.

An electromagnetic coupling device includes an electromagnetic coil, a field core including a recessed portion containing the electromagnetic coil, and a terminal block inserted in a hole passing through the wall of the recessed portion. The terminal block includes a terminal portion projecting outside the field core, a pair of terminals provided at the terminal portion, and a pair of through holes passing through the terminal block via the pair of terminals. The winding start end and winding termination end of the electromagnetic coil pass through the pair of through holes, project from the pair of terminals, and are soldered to the pair of terminals together with a pair of external connection lead wires.

A rotary electric machine system of a combined power system includes a rotary electric machine, a rotary electric machine housing in which the rotary electric machine is accommodated, and a rotation parameter detector that detects a rotation parameter of a rotating shaft constituting the rotary electric machine. The rotating shaft includes a first end part and a second end part, a first bearing is provided between the first end part and the housing, and a second bearing is provided between the second end part and the housing. The first end part includes a protruding distal end that passes through the first bearing and protrudes to an exterior of the housing. The rotation parameter detector is disposed on the protruding distal end.

A rotary electric machine system of a combined power system includes a rotary electric machine, a rotary electric machine housing in which the rotary electric machine is accommodated, and a rotation parameter detector that detects a rotation parameter of a rotating shaft constituting the rotary electric machine. The rotating shaft includes a first end part and a second end part, a first bearing is provided between the first end part and the housing, and a second bearing is provided between the second end part and the housing. The first end part includes a protruding distal end that passes through the first bearing and protrudes to an exterior of the housing. The rotation parameter detector is disposed on the protruding distal end.

A control system is configured such that a carriage that a processing head is mounted is driven by a motor and reciprocates. The motor is controlled by a controller. The controller reciprocates the carriage by selecting a control mode as a target mode based on temperature information related to temperature of the motor and controlling the motor in the target mode. The controller selects the target mode to be applied to the control of the motor for each of particular work units. The target mode is selected from a group of particular control modes. Each control mode in the group of particular control modes is a control mode in which a maximum temperature, which is estimated based on the temperature information, when the control of the motor using the selected control mode would be executed until the processing is completed, is less than a reference value.