Abstract: The invention relates to a basic body for an electric motor, which comprises the following features: a substantially cylindrical outer wall, which forms a rotor space for receiving a rotor at least partially inside the outer wall and on which a winding can be mounted at least partially outside the latter; a laminated core which is held by the outer wall; a receiving space which serves to receive a printed circuit board or another component of the electric motor and which adjoins the rotor space; a partition wall separating the receiving space from the rotor space; at least one orienting device for positionally orienting the printed circuit board or the other component of the electric motor inside the receiving space; a receptacle for a cover which closes the rotor space, said receptacle being situated on the outer wall on the side of the rotor space opposite to the partition wall; and an inner wall, which adjoins the partition wall, for receiving a bearing for the rotor, said inner wall, together with the out

Abstract: The invention relates to abasic body (1) for an electric motor (2), which comprises the following features: a substantially cylindrical outer wall (3), which forms a rotor space (4) for receiving a rotor (5) at least partially inside the outer wall (3) and on which a winding (6) can be mounted at least partially outside the latter; a laminated core (7) which is held by the outer wall (3); a receiving space (9) which serves to receive a printed circuit board (12) or another component of the electric motor (2) and which adjoins the rotor space (4); a partition wall (10) separating the receiving space (9) from the rotor space (4); at least one orienting device (13) for positionally orienting the printed circuit board (12) or the other component of the electric motor (2) inside the receiving space (9); a receptacle (17) for a cover (18) which closes the rotor space (4), said receptacle being situated on the outer wall (3) on the side of the rotor space (44) opposite to the partition wall (10); and an inner wall (

Abstract: The invention relates to abasic body (1) for an electric motor (2), which comprises the following features: a substantially cylindrical outer wall (3), which forms a rotor space (4) for receiving a rotor (5) at least partially inside the outer wall (3) and on which a winding (6) can be mounted at least partially outside the latter; a laminated core (7) which is held by the outer wall (3); a receiving space (9) which serves to receive a printed circuit board (12) or another component of the electric motor (2) and which adjoins the rotor space (4); a partition wall (10) separating the receiving space (9) from the rotor space (4); at least one orienting device (13) for positionally orienting the printed circuit board (12) or the other component of the electric motor (2) inside the receiving space (9); a receptacle (17) for a cover (18) which closes the rotor space (4), said receptacle being situated on the outer wall (3) on the side of the rotor space (44) opposite to the partition wall (10); and an inner wall (

Abstract: The present invention relates to a method for producing a stator which includes the steps of inserting a stator segment into a former; introducing a coil wire winding into a coil space of the stator segment, and out via a slot which is located in the region between two pole horns; cohesively connecting the turns of the coil at least partially, at least in parts of that region of the coil, which is located outside the slot; and removing the former.

Abstract: The present invention relates to a method for producing a stator which includes the steps of inserting a stator segment into a former; introducing a coil wire winding into a coil space of the stator segment, and out via a slot which is located in the region between two pole horns; cohesively connecting the turns of the coil at least partially, at least in parts of that region of the coil, which is located outside the slot; and removing the former.

Abstract: A novel stator for an electric drive, is described and which includes—a stator body defining a coil space for accommodating a coil wire in the form of a coil, and wherein the coil space comprises a plurality of slots, which are delimited by a stator wall and pole horns made integral with the stator; and wherein—the coil wire is inserted into the coil space, and is subsequently wound out via the slot in the region which is located between the two pole horns. In addition, the disclosed invention relates to a method for producing a stator.

Abstract: The invention relates to a commutator (1) comprising electrically conductive commutator segments (12), which are disposed about a rotational axis (10) in a manner free of a pressing material body, and which are electrically insulated from each other by means of an air gap (14) disposed between two adjacent commutator segments (12), characterized in that a fixing means (42) applied to the commutator (1) in a flowable phase in a form-free manner is cured after a flow process between two commutator segments (12) adjoining in the circumferential direction about the rotational axis (10), and that the position of the commutator segments (12) is fixed by the cured fixing means (42), and to a power tool having an electric motor comprising such a commutator, and to a method for the production of a commutator.

Abstract: A rotor (2) for a forced-air-cooled electric motor, in particular a universal motor, especially for use with electrical power tools, has a laminated armature (6) incorporating longitudinal slots (8) and with wire windings of a coil (10) protruding from the longitudinal slots (8) on the front face where the windings form coil connecting heads (20, 22). Some or all of the longitudinal slots (8) in the laminated armature (6) contain a rod (28) aligned in the longitudinal direction and protruding axially from one or both front faces (24, 26) of the laminated armature (6), whereby the protruding rod ends thus surround the coil connecting heads (20, 22) on the respective front face to protect the coil connecting heads from abrasive wear.

Abstract: A rotor (2) for a forced-air-cooled electric motor, in particular a universal motor, especially for use with electrical power tools, has a laminated armature (6) incorporating longitudinal slots (8) and with wire windings of a coil (10) protruding from the longitudinal slots (8) on the front face where the windings form coil connecting heads (20, 22). Some or all of the longitudinal slots (8) in the laminated armature (6) contain a rod (28) aligned in the longitudinal direction and protruding axially from one or both front faces (24, 26) of the laminated armature (6), whereby the protruding rod ends thus surround the coil connecting heads (20, 22) on the respective front face to protect the coil connecting heads from abrasive wear.

Abstract: The invention relates to a method for mounting an armature laminated core (6) on an armature shaft (2) for an electric motor, the armature shaft (2) being formed either from electrically insulating solid plastic or being a shaft which is sheathed with an electrically insulating plastic (10), the sheath (8) having a thickness of at least 1 mm, and having the following features: manufacture of armature cores (12) whose central opening (14) for the armature shaft (2) has a non-round cross section with at least one radially inwardly extended projection (20), the diameter of an inscribed circle (22) which forms a clear cross-sectional area of the opening (14) being smaller than the external diameter of the armature shaft (2); pressing of the armature cores (12) onto the armature shaft (2) in the axial direction (16) of the armature shaft (2) with the at least one projection (20) sinking into the surface of the plastic (10)

Abstract: The invention relates to an electric driven tool device, especially an electric hand-held tool device, comprising an asynchronous electric motor (2) or a brush-less synchronous electric motor and a computer-controlled motor control device (8). The invention is characterized by a frequency converter (4) which can be controlled by the motor control device, whereby a motor (drive) voltage can be applied to the motor (2), and with a current detector (10) which co-operates with the motor control device (8) and detects the motor current. The motor control device (8) is embodied in such a manner that, in a first phase of the motor operation, the frequency of the motor current is maintained in a constant manner up to a limiting current I(grenz) and, in a second phase of the motor operation, at loads above the load at which the motor current reaches the limiting current I(grenz), the frequency of the motor current is lowered in such a manner that the motor current is maintained at a constant value.

Abstract: The invention relates to an electric driven tool device, especially an electric hand-held tool device, comprising an asynchronous electric motor (2) or a brush-less synchronous electric motor and a computer-controlled motor control device (8). The invention is characterized by a frequency converter (4) which can be controlled by the motor control device, whereby a motor (drive) voltage can be applied to the motor (2), and with a current detector (10) which co-operates with the motor control device (8) and detects the motor current. The motor control device (8) is embodied in such a manner that, in a first phase of the motor operation, the frequency of the motor current is maintained in a constant manner up to a limiting current I(grenz) and, in a second phase of the motor operation, at loads above the load at which the motor current reaches the limiting current I(grenz), the frequency of the motor current is lowered in such a manner that the motor current is maintained at a constant value.