摘要:
The reversible multiphase rotary machine comprises a device (3) for supplying current to the windings (12-14) of the stator, which is produced in the form of a mechanical inverter (2) able to be coupled to the aforementioned shaft of the machine and connected to the windings (12-14) of the stator. The invention finds an application in the field of motor vehicles.
摘要:
A DC voltage permanent magnet, rotating brush type motor that is characterized by a high output power-to-weight ratio so as to be particularly suitable for use in an electric vehicle. Efficiency is maximized by commutating the motor mechanically rather than electronically. To this end, the motor includes a stationary double sided commutator assembly having sets of electrically conductive commutator bars extending radially on opposite sides thereof, whereby to increase the current carrying capacity of the commutator assembly. A pair of brush assemblies rotate at opposite sides of the stationary commutator assembly. Each brush assembly includes a lightweight brush holder coupled to the motor shaft by which to carry a plurality of shuntless electrically conductive brushes, whereby the brushes rotate relative to the commutator bars at the opposite sides of the commutator assembly.
摘要:
An improved structure for a high efficiency DC motor is disclosed. The DC motor is a motor with built-in field windings, its center shaft is set up in a non-ferromagnetic base which has three equally spaced confinement slots formed around its outer peripheral surface for installing three stacks of laminated silicon steel sheets, a field winding is wound over each laminated silicon steel sheet stack thereby forming a three split phase DC motor. A control unit composed of a commutator assembly and a hollow stationary base is connected in cascade with the motor field so as to drive and control the motor operation. A plurality of motors can be connected in cascade on a common center shaft to form a bulk motor unit operated by one control unit.
摘要:
A direct current motor according to the present invention is provided with a stator 2 in which coils 4 corresponding to N phases are arranged almost at equal intervals in a circle-circumferential direction of stator cores 3, a rotor 8 in which a plurality of permanent magnets 9 are respectively arranged at positions corresponding to the coils 4 of the stator 2, and a current carrying device, having a commutator 11, for commutating direct current supplied from a power source to N-phase current in cooperation with the rotor 8 and carrying the N-phase current to each coil of the stator 2. In the internal space of the current carrying device, a plurality of noise eliminating members 23 connected with a plurality of brush holding plates corresponding to the coil phases are arranged.
摘要:
A power supply motor brushes 25 for a current carrying device is arranged in a sensor power supplying unit 21 with a sensor. This allows connecting terminals 5 of the sensor power supplying unit 1 and receiving connectors 7 of a DC motor unit 6, which are arranged in proximity to motor brushes 9 of the DC motor unit 6 and which are connected to the connecting terminals 5, to be dispensed with. These components are required in a conventional device in order to supply a current from a power supply terminal 2 to the motor brushes 9.
摘要:
A rotor 55 having magnets 57 is assembled to rotate freely by bearings 58, 59 with respect to a stator which comprises coils 54 and stator cores 53. A current carrying device is formed from motor brushes 73, and slip rings 75 and commutator pieces 74 of a disk-shaped feeding unit 72, and the current carrying device is arranged on an outer side opposite to a side arranging the magnets 57 on a rotational axis X of the rotor 55 with respect to the bearing 58.
摘要:
In a d.c. motor, the stator may form the armature and has its windings inserted in slots in its cylindrical surface and the rotor may comprise a permanent magnet or be provided with d.c. windings. Switching means operate in synchronism with rotation of the rotor to connect a d.c. source to the armature windings so that a rotating field is produced in arrears of the rotor field to exert a repelling force on the rotor poles. Because the rotor and stator fields are in opposition, rather than in mutual assistance, less energy is needed to energize the windings to produce a given torque. Also the current in each winding is very low when commutation occurs, and sparking avoided.
摘要:
A magnetic motor which includes a rotor, having a preselected number of polarized magnetic poles spaced about its periphery rotating with respect to an armature having a differing, preselected number of circumferentially spaced, magnetic poles, the motor utilizing at least four pole-polarity switching circuits responsive to the rotation of the rotor each of which circuits will selectively reverse the polarity of the armature poles to continue the rotation of the rotor with respect to the armature.
摘要:
A DC motor having a ring stator slotted on the inside and outside surfaces to receive insulated square iron wire windings to form a stationary armature, the windings being connected at a plurality of taps thereon to a stationary commutator for creation of a rotating magnetic field. A rotating brush holder, driven by an external motor cooperates with the stationary commutator to effect the rotating magnetic field, DC voltage being applied to the brushes by way of a slip ring arrangement. A bipolar field structure is rotatably mounted inside the armature ring and is continuously energized in one polarity for reaction with the armature by another slip ring and brush arrangement.