Abstract:
The invention relates to a DC commutator motor for a drive device, especially in a motor vehicle. Said commutator motor comprises a stator having a plurality of stator poles, an armature rotor having a plurality of armature teeth which are arranged on the periphery of the armature rotor with interposed rotor grooves, individual tooth coils being provided on every armature tooth, a commutator, one respective end of an individual tooth coil being connected to a respective lamella of the commutator, a respective number of lamellae being interconnected by bridges, and the number of lamellae being a multiple of the stator poles and a multiple of the number of pole pairs of the stator poles. The invention further relates to an anti-lock braking device.
Abstract:
The invention relates to a brush-commutated direct-current motor, comprising a stator, which bears a plurality of exciter poles, and a rotor, which can be rotated about an axis of rotation in relation to the stator and which has a plurality of pole teeth. A plurality of windings is arranged on each pole tooth. A commutator arranged on the rotor has a plurality of bars, wherein each winding is connected to one of the bars by means of a first winding arm and to another of the bars by means of a second winding arm. In addition, a plurality of shorting jumpers is provided, each of which electrically connects two windings to each other and for this purpose is arranged on at least two bars of the commutator. The plurality of windings of the plurality of pole teeth is formed by a plurality of wire revolutions, wherein each wire revolution comprises at least one winding of each pole tooth and shorting wires that connect the windings and is wound from a continuous wire. In addition, a first wire end (20) of the continuous wire (2, 2A, 2B) is connected to a first bar (L1-L24) and a second wire end (21) of the continuous wire (2, 2A, 2B) is connected to a second bar (L1-L24) different from the first bar (L1-L24). In this way, a brush-commutated direct-current motor is created in which the windings and shorting jumpers can be wound from a continuous wire without the required axial installation space being too greatly increased thereby.
Abstract:
A distributed winding arrangement for an electric motor is provided that reduces brush arcing while reducing the size of the commutator. The electric motor is comprised generally of an armature having a plurality of spaced apart posts defining a plurality of spaced apart winding slots; a stator disposed coaxially with the armature; and a commutator having a plurality of commutator bars, where the number of commutator bars is an integer greater than the number of winding slots but less than twice the number of winding slots provided by the armature.
Abstract:
The invention relates to a brush-commutated electrical machine (1), comprising: a rotor (6) having a number of rotor teeth (8); rotor coils (10), which each enclose one or a plurality of the rotor teeth (8); a stator arrangement having stator poles, which have at least one permanent magnet stator pole (4) formed with a permanent magnet (3) and at least one subsequent pole (5) which is not provided with a permanent magnet and are arranged in a subsequent pole arrangement; a commutator having at least one brush pair in order to make contact with a rotor coil group of rotor coils which are connected to each other, wherein in each case the entire inductance of the connected rotor coils (10) is equal to one of the rotor coil group at a first and at a second position of the rotor (6) in relation to the stator arrangement.
Abstract:
A device for eliminating overvoltages caused by a magnetic armature reaction in armature phase windings of dynamo-electric machines, by compensating for the natural mutual inductances between each phase winding and the others in the armature. Low relative value couplings are not compensatable. The device may be used in dynamo-electric machines and related electronic circuits.