초록 ▼

An electric motor, gearbox, position phase angle sensor and motor phase angle sensor are integrated in a common housing to reduce the size of a positioning and actuating system. The housing also includes electronics for detecting and processing the signals from the phase angle sensors. The rotor sha

An electric motor, gearbox, position phase angle sensor and motor phase angle sensor are integrated in a common housing to reduce the size of a positioning and actuating system. The housing also includes electronics for detecting and processing the signals from the phase angle sensors. The rotor shaft of the electric motor is designed to be hollow, and the drive shaft is mounted coaxially. The output shaft passing coaxially through the gearbox, and the end of the shaft which protrudes from the gear box is provided with a coupling. The drive shaft passes coaxially through the rotor of the electric motor and carries a position phase angle sensor at the end of the electric motor opposite the gear box. The motor phase angle sensor on the rotor shaft coaxially encloses the position phase angle sensor. The scanning detectors of both sensors are arranged on a common circuit board, which also carries the electronics for detecting and processing the signals of these sensors. Thus the phase angle sensors and electronics can be compactly mounted in the housing. A second circuit board, carrying the control and power electronics can be integrated parallel to the circuit board carrying the sensors. Both circuit boards are arranged perpendicular to the axis of the rotor and output shafts, the circuit boards add little to the overall dimensions of the housing.

대표청구항 ▼

[ What is claimed is:] [1.]1. A positioning and actuating drive, comprising:an electric DC motor, which has a stator and a rotor rotatably mounted coaxially in the stator;a rotor shaft of the rotor, which is designed as a hollow shaft;an output shaft rotatably mounted coaxially in the rotor shaft;a

[ What is claimed is:] [1.]1. A positioning and actuating drive, comprising:an electric DC motor, which has a stator and a rotor rotatably mounted coaxially in the stator;a rotor shaft of the rotor, which is designed as a hollow shaft;an output shaft rotatably mounted coaxially in the rotor shaft;a gear box which drivingly connects the rotor shaft to the output shaft and is arranged at a first end face of the electric motor, the output shaft protruding outward from the rotor shaft and the gear box at the first end face;a position phase angle sensor and a motor phase angle sensor, which are arranged at an opposite second end face of the electric motor, the position phase angle sensor having a position phase angle sensing unit mounted on the output shaft and a fixed position phase angle sensor, and the motor phase angle sensor having a motor phase angle sensing unit mounted on the rotor shaft and a fixed motor phase angle sensor;electronics for detecting and processing signals from the position phase angle sensor and of the phase angle sensor; anda housing, which encloses the electric motor, the gear box, the position phase angle sensor, the motor phase angle sensor, and the electronics, with the output shaft protruding at an end face.