Abstract: An electric motor with a housing, at least two terminal contacts and at least one suppression device against electromagnetic emissions, wherein the suppression device comprises at least one circuit carrier with at least one filter circuit, wherein the circuit carrier is arranged on an end side of the electric motor, and wherein the filter circuit is electrically connected to the two terminal contacts. The manufacturing effort is reduced in that at least one contact means electrically connected to the filter circuit is attached to the circuit carrier, and in that the contact means bears against a ground contact with at least partial deformation, so that the filter circuit is electrically connected to the ground contact via the contact means.

Abstract: An electromechanical drive device having a housing (1) and an electric drive part (1a) having a stator part (3) and a rotor part (4). The drive part (1a) is held circumferentially in the housing in a force-fitting manner, and the housing (1) is formed by a base part (6) having a bottom section (7) and two mutually opposing lateral wall sections (8) formed thereon on its longitudinal edges, and a housing opening formed by the lateral wall sections (8) at the end side. The housing opening (9) is closed by a housing cover (11) which in the mounted state is connected to the lateral wall sections (8) in a force and form fitting manner, wherein the force-fitting between the drive part (1a) and the housing (1) is present due to a bending of the lateral wall sections (8) toward each other.

Abstract: A preformed coil (20) to produce a self-supporting air-gap skewed winding of a small electric motor consisting of at least two preformed coils (20) positioned overlapping on a circumference of a winding (6) and a method and device for producing the coil. Two preformed coil sides (24a, 24b) lying in different radial planes are formed which are connected on their front ends (26a, 26b) by front connections. The front connections feature the radial plane offset from the winding offset sections (28) bridging the preformed coil sides (24a, 24b). The preformed coil sides (24a, 24b) are formed curved with a circular shape around a longitudinal axis (16), and the radius of curvature of the one radial outer preformed coil side (24a) is greater than the radius of curvature of the radial inner preformed coil side (24b).

Abstract: A transmission (3) for an electric miniature drive or microdrive, having a transmission housing (9), an attachment flange (13) for attaching the transmission (3) to an application or load, a driven shaft (7), supported in at least one driven bearing (8), for driving the application. The driven shaft (7) is connectable via the transmission mechanism to the miniature drive or microdrive, and a torque measuring member (15) for the registration of the torque generated on the driven shaft (7) using a flexible element during operation of the miniature drive or microdrive. A magnetic encoder system (19) is disposed on the flexible element (17), which has a magnetic field measuring element (25) for measuring a rotatory displacement of the flexible element (17). The flexible element (17) is disposed axially between the transmission mechanism and the attachment flange (13).

Abstract: A redundant brushless drive system, including a coil (12) having first and second phase windings operable independently of one another and first and second independently operable sensor groups for the rotational position of a rotor (11) and for commutation of the phase windings. The first and second sensor groups are positioned along the motor axle one-behind-the-other parallel to each other and symmetrical to the motor axle (10). An encoder circuit board (7) is configured such that an association of the sensor groups (G1, G2) to a phase winding (W1, W2) is configurable such that either the first sensor group (G1) is used for controlling the first phase winding (W1) and the second sensor group (G2) for controlling the second phase winding (W2), or the first sensor group (G1) is used for controlling the second phase winding (W2) and the second sensor group (G2) for controlling the first phase winding (W1).

Abstract: A miniature electric motor (1) with an outer diameter (DA) that is smaller than or equal to 6 mm, has a hollow cylindrical stator (2) with stator coils (8) and a magnetic rotor (4) rotatably arranged around a rotational axis (16) in the stator (2) by means of a rotor shaft (10). The stator coils (8) can be energized in order to generate a magnetic rotational field in dependence upon the rotational position of the magnetic rotor (4). A sensor chip (20) having at least one magnetic field sensor (22) is arranged in such a manner in an area axially adjacent to a front face of the magnetic rotor (4) located within a plane that is vertical to the rotational axis (16) that the magnetic field sensor (22) is impinged in such a way by the magnetic field that the rotational position of the rotor can be evaluated.

Abstract: A preformed coil (20) to produce a self-supporting air-gap skewed winding of a small electric motor consisting of at least two preformed coils (20) positioned overlapping on a circumference of a winding (6) and a method and device for producing the coil. Two preformed coil sides (24a, 24b) lying in different radial planes are formed which are connected on their front ends (26a, 26b) by front connections. The front connections feature the radial plane offset from the winding offset sections (28) bridging the preformed coil sides (24a, 24b). The preformed coil sides (24a, 24b) are formed curved with a circular shape around a longitudinal axis (16), and the radius of curvature of the one radial outer preformed coil side (24a) is greater than the radius of curvature of the radial inner preformed coil side (24b).

Abstract: In a method for the determination of a current initial rotational position of a rotor and in an arrangement for carrying out same, an incremental position encoder outputs an output signal. The output signal is produced by superposition of a chronologically random and systematically fluctuating signal interference on a basic signal, and composed of at least two component signals which change periodically in accordance with the rotational position of the rotor and are in a fixed angular relationship to one another. To determine the position, the output signal is used exclusively. The current initial rotational position of the rotor relative to a reference initial rotational position is determined by comparing the time profile of the portion of the systematically fluctuating signal interference of a current measured value sequence of the signal and the measured values of a signal sequence acquired starting from the reference initial rotational position.

Abstract: The present invention relates to an electrical actuating drive (1) for devices to be adjusted mechanically, having an electrical drive motor (2) and an output-drive shaft (4) which can be adjusted over a rotation actuating range of more than 360°, comprising an integrated contactless sensor angle measurement system (6) for determining and feeding back the respective rotation position of the output-drive shaft (4). The sensor angle measurement system (6) produces an output signal which largely simulates the characteristics of a conventional multiple potentiometer system.

Abstract: In a method for the determination of a current initial rotational position of a rotor and in an arrangement for carrying out same, an incremental position encoder outputs an output signal. The output signal is produced by superposition of a chronologically random and systematically fluctuating signal interference on a basic signal, and composed of at least two component signals which change periodically in accordance with the rotational position of the rotor and are in a fixed angular relationship to one another. To determine the position, the output signal is used exclusively. The current initial rotational position of the rotor relative to a reference initial rotational position is determined by comparing the time profile of the portion of the systematically fluctuating signal interference of a current measured value sequence of the signal and the measured values of a signal sequence acquired starting from the reference initial rotational position.

Abstract: A drive mechanism for a device with two operating parts, which are connected so as to be pivotally displaceable relative to each other between a first position and a second position about a common axis of rotation. The drive mechanism has a driving mechanism such that a movement from the first position to the second position can be initiated initially by a slight movement and the additional movement is then effected automatically through spring force (F) until the second position has been reached. The movement out of the first position into the second position is possible in either a clockwise and counterclockwise movement. The driving mechanism comprises a driven part, one operating part and two drives that are in the form of a force storing device The force storing devices interact with the driven part in opposing directions in such a manner that only the one for storing device is in driving connection with the driven part while the other force storing device is retained in its starting position.

Abstract: A miniature electric motor (1) with an outer diameter (DA) that is smaller than about 6 mm, having a hollow cylindrical stator (2) with stator coils (8) and a magnetic rotor (4) rotatably arranged around a rotational axis (16) in the stator (2) by rotor shaft (10). The stator coils (8) can be energized in order to generate a magnetic rotational field in dependence upon the rotational position of the magnetic rotor (4). To detect the rotational position of the magnetic rotor (4), a sensor chip (20) having at least one magnetic field sensor (22) is arranged in an area axially adjacent to a front face of the magnetic rotor (4) located within a plane that is vertical to the rotational axis (16). The magnetic field sensor (22) is impinged by the magnetic field of the magnetic rotor (4) so that the rotational position of the rotor can be evaluated.

Abstract: The present invention relates to a miniature electrical drive (1), in particular a rotating field drive with permanent magnet excitation, having a stator (2) and a soft-magnetic return path element (6) which cylindrically surrounds the stator (2) and has a multiplicity of sheet-metal laminates (22) which are in the form of annular disks and are arranged in layers to form a cylindrical laminated core (20). The sheet-metal laminates (22) in the laminated core (20) are held prestressed exclusively with a force fit and in an interlocking manner in the axial and radial directions, and without adhesive or integral joint means such as this, in a supporting sleeve (24) which coaxially surrounds said sheet-metal laminates (22).

Abstract: The present invention relates to an electrical actuating drive (1) for devices to be adjusted mechanically, having an electrical drive motor (2) and an output-drive shaft (4) which can be adjusted over a rotation actuating range of more than 360°, comprising an integrated contactless sensor angle measurement system (6) for determining and feeding back the respective rotation position of the output-drive shaft (4). The sensor angle measurement system (6) produces an output signal which largely simulates the characteristics of a conventional multiple potentiometer system.

Abstract: In at least one embodiment of the present invention a bell-armature coil for an electric motor is provided. The bell-armature coil comprises a hollow-cylindrical coil winding which forms a coil opening at one end and is wound from a winding wire. The bell-armature coil further comprises a coil former plate. The coil former plate includes a printed circuit board. Into the coil opening the coil former plate is inserted. The coil winding has conductor ends which are connected to the printed circuit board.

Abstract: A transmission element for a zero backlash transmission with at least two transmission paths that are tensioned relative to one another has a first transmission part and a second transmission part that are elastically tensionable relative to one another. At least one torsion spring element for increasing the elasticity is provided. The torsion spring element transmits torque between the first and second transmission parts and the first and second transmission parts are rotatable relative to one another.

Abstract: An electric motor has a rotor and a magnet system having at least one permanent magnet generating a magnetic field. At least one braking element made of ferromagnetic material is positioned at least partially within the magnetic field of the permanent magnet. The electric motor has a housing with a housing wall, and the magnetic field is generated between the permanent magnet and the housing wall. The permanent magnet is annular and surrounds a rotor shaft of the rotor at a spacing. The braking element is fixedly connected to the rotor or fixedly arranged on the housing.

Abstract: An electric motor, having a coil without iron-core and having an integrated electronic control device, has a sine commutator supplying the electric motor with sine-shaped currents or voltages. The control device has an rpm control with which a magnitude of the sine-shaped currents or voltages is preset. The electronic control device also has a position control for the motor shaft.

Abstract: A microelectric motor has a housing and a rotatable motor shaft extending axially in the housing. The housing has an axial length. A rotor is fastened to the motor shaft and a stator is positioned in the housing for cooperating with the rotor. A receiving chamber is provided in the housing within its axial length. The transducer is positioned in the receiving chamber.