A stator of an electric machine includes a stator winding having a plurality of coils, the coils are connected to one another by connection conductors. A temperature sensor is arranged at a connection conductor and is in thermal contact with the connection conductor for detecting a temperature. Two parallel current paths are formed at the connection conductor and the temperature sensor is arranged at one of the current paths.

A motor drive system with a correction function of a temperature deviation of an IGBT module is provided. The system may include: a gate board configured to detect a plurality of sensing temperature information by sensing the IGBT module, acquire a difference value between maximum temperature information among the plurality of sensing temperature information and at least one sensing temperature information, and correct and output the at least one sensing temperature information by using the acquired difference value.

A motor drive system with a correction function of a temperature deviation of an IGBT module is provided. The system may include: a gate board configured to detect a plurality of sensing temperature information by sensing the IGBT module, acquire a difference value between maximum temperature information among the plurality of sensing temperature information and at least one sensing temperature information, and correct and output the at least one sensing temperature information by using the acquired difference value.

A rotor for an electric motor includes a rotor shaft rotatably mounted about an axis; and a lamination stack mounted coaxially on the rotor shaft. The lamination stack includes inner cavities; permanent magnets housed inside the inner cavities of the lamination stack; and a front flange and a rear flange mounted coaxially on the rotor shaft and arranged axially on either side of the lamination stack. At least one amongst the front flange and the rear flanges is equipped with at least one sensor.

A rotor for an electric motor includes a rotor shaft rotatably mounted about an axis; and a lamination stack mounted coaxially on the rotor shaft. The lamination stack includes inner cavities; permanent magnets housed inside the inner cavities of the lamination stack; and a front flange and a rear flange mounted coaxially on the rotor shaft and arranged axially on either side of the lamination stack. At least one amongst the front flange and the rear flanges is equipped with at least one sensor.

An electric work machine (1) includes: a motor (6) having a rotor (23), which rotates about a rotational axis relative to a stator (22A; 22B; 22C; 22D); an output part (8) driven by the rotor; and a temperature-detecting device (101; 111; 121; 131) disposed on or in the stator. The stator includes: a stator core (33; 330) having teeth (38; 380), which radially protrude from a yoke (37); an insulator (34; 340), which has tooth-covering parts (42; 420) that respectively cover at least a portion of surfaces of the respective teeth and is fixed to the stator core; and coils (35; 350) respectively wound on the teeth over the tooth-covering parts. The temperature-detecting device is disposed in a recess (56) provided on (in) the insulator.

An electric work machine (1) includes: a motor (6) having a rotor (23), which rotates about a rotational axis relative to a stator (22A; 22B; 22C; 22D); an output part (8) driven by the rotor; and a temperature-detecting device (101; 111; 121; 131) disposed on or in the stator. The stator includes: a stator core (33; 330) having teeth (38; 380), which radially protrude from a yoke (37); an insulator (34; 340), which has tooth-covering parts (42; 420) that respectively cover at least a portion of surfaces of the respective teeth and is fixed to the stator core; and coils (35; 350) respectively wound on the teeth over the tooth-covering parts. The temperature-detecting device is disposed in a recess (56) provided on (in) the insulator.

A rotor for an electric motor includes a rotor shaft mounted for rotation about an axis; a lamination stack coaxially mounted on the rotor shaft, the lamination stack having internal cavities; permanent magnets housed inside the internal cavities of the lamination stack; and at least one flange mounted axially on the rotor shaft. The at least one flange includes at least one rod extending axially inside an orifice formed axially in the lamination stack. The at least one rod is provided with at least one rod sensor. An electric motor having a rotor of the aforementioned type is also related.

A rotor for an electric motor includes a rotor shaft mounted for rotation about an axis; a lamination stack coaxially mounted on the rotor shaft, the lamination stack having internal cavities; permanent magnets housed inside the internal cavities of the lamination stack; and at least one flange mounted axially on the rotor shaft. The at least one flange includes at least one rod extending axially inside an orifice formed axially in the lamination stack. The at least one rod is provided with at least one rod sensor. An electric motor having a rotor of the aforementioned type is also related.

The invention relates to a resolver (1) for an electric machine, comprising a resolver stator (2) and a connection module (3). The resolver stator (2) and the connection module (3) are formed as a single piece. The connection module (3) comprises a first plugging portion (4), which has at least one first contact pin (6) and at least one second contact pin (7), and a second plugging portion (5), which has at least one third contact pin (8). The first contact pin (6) is electrically connected to the resolver stator (2), and the second contact pin (7) is electrically connected to the third contact pin (8).