Abstract:
An electric connector assembly is provided that is designed to provide a simple and reliable electric connection between a source of electric power on an aircraft and a plurality of electrical connections, such as those from stator windings, in an electric drive means powering an aircraft landing gear drive wheel. The plurality of drive means electrical connections are individually connected to power distribution elements designed to significantly reduce the number of connectors required to establish an electrical connection between the drive means and an aircraft power supply. The reduced number of connectors is directed out of the wheel and guided along a path by a path guide element to a connector element designed to connect directly with a wire harness or other connection with an aircraft source of electric power. This electric connector design facilitates disconnection and reconnection when removal and remounting of the drive wheel is required.
Abstract:
A direct-current electric motor, in particular with small dimensions, comprises a shaft, a winding former, a commutator having a plurality of commutator wires, and an air-cored external rotor winding with a plurality of winding connections. The external rotor winding is connected to the shaft, such that they rotate together, at one end via the winding former. In this case, the winding former represents a load-bearing component. The external rotor winding is furthermore electrically connected to the commutator. In the case of a direct-current electric motor which furthermore has a printed circuit board, the invention provides that the winding former is replaced by the printed circuit board as a load-bearing component composed of a glass-fibre-reinforced thermosetting plastic, wherein the printed circuit board is formed from at least one layer and is connected to the shaft via a metal hub. Alternatively, the invention provides for the winding former to be a metal plate which has a central hole for the connection to the shaft, an isolation ring composed of plastic or ceramic is provided on the external circumference of the metal plate, for electrical isolation from the external rotor winding. The invention also relates to corresponding production methods.
Abstract:
Die Erfindung betrifft einen Kommutator (1) für eine elektrische Maschine, mit mehreren Kommutator-Lamellen (3), die jeweils an einem verlängerten Lamellenende (6) ein Halteelement (9) für einen Wicklungsdraht (13) einer Rotorwicklung aufweisen. Hierbei ist vorgesehen, dass das Lamellenende (6) als Halteelement (9) eine im Wesentlichen gabelförmige Wicklungsdraht-Aufnahme (10) aufweist. Weiter betrifft die Erfindung eine elektrische Maschine mit einem Rotor, der wenigstens eine mehrere Wicklungsdrähte (13) umfassende Rotorwicklung aufweist, wobei zumindest jeweils ein Wicklungsdraht (13) an einem Halteelement (9) eines verlängerten Lamellenendes (6) einer Kommutator-Lamelle (3) eines Kommutators (1) gehalten ist.
Abstract:
Die Erfindung betrifft einen Kommutator (1) mit einer Bürstenlauffläche (8) bildenden voneinander distanzierten Kontaktsegmenten (4), die jeweils mit einem Befestigungsabschnitt eines metallischen Segmenttragteils (6) fest und elektrisch leitend verbunden sind und mit einem Nabenkörper (3) aus einem elektrisch isolierenden Material, der die ebenfalls voneinander distanzierten Segmentteile (4) trägt, welche jeweils an einem Axialabschnitt mit einem Wicklungsanschlusshaken (7) versehen sind. Erfindungsgemäß ist vorgesehen, dass in dem Axialabschnitt (6) mindestens eine Ausnehmung (12) eingebracht ist.
Abstract:
Un induit rotorique d'un moteur électrique comprend un bobinage rotorique imprégné partiellement par un agent d'imprégnation le long d'une distance axiale (v) prédéterminée s' étendant depuis le chignon arrière (43) dans la zone de soudure (44) des extrémités des conducteurs (41) sur les lames (45) du collecteur (23), jusqu'à une position intermédiaire du circuit magnétique (39), de manière à laisser le chignon avant (42) libre de toute imprégnation pour augmenter sa surface d'échange thermique. Application : démarreurs de véhicule automobile
Abstract:
The subject of this invention is the way of forming the armature's commutator bars of the wire ends of the armature windings. The commutator consisting these and isolation material furthermore the processing method of these commutators will be discussed. The goal of this invention is that the armature parts of the rotating electric motors be more robust and reliable, equisolid both mechanically as well electrically. We achieve the above mentioned goal by forging the commutator bars from the armature windings wire end themselves and connect the wire pairs to each other with same forging and these formed commutator bars which are continuously connected to the armature winding separate from each other with an isolation ring that is fixed to the armature shaft. The commutator bars are embedded into the isolation or fixed on its surface with isolating ring.
Abstract:
The armature is fabricated from pre-machined copper sheet metal parts with an electrical conductor pattern of numerous axially extending conductive bands. These precision machined sheet metal parts are cold rolled to form two work hardened cylinders, each cylinder having a complimentary pattern of electrically conductive bands creating a half-electric circuit. The two cold rolled metal cylinders are sized such that the smaller diameter inner cylinder fits inside the larger diameter outer cylinder. The surface of the inner cold rolled cylinder is over-wrapped with fiber strands, woven in several layers to provide physical spacing and electrical insulation. The fiber wrapped inner cylinder is placed inside the larger outer cylinder radially oriented to ensure that an electrical circuit is created by welding the inner and outer cylinder at the conductor tabs. The surface of this cylinder assembly is over-wrapped with fiber strands, woven in several layers and holding the two cylinders together.
Abstract:
The invention relates to a method for fixing a rotor winding (15) which is hooked onto the terminal lugs (122) of the commutator segments (121) of a commutator (12). The rotor winding is to be fixed in the area between the end windings (151) configured on the front face of the rotor body (11) and the terminal lugs (122). In order to simplify the process, a heat-shrinkable tube (16) is drawn over the commutator (12) of the finished rotor (10) and pulled far enough onto the end windings (151) to cover the terminal lugs (122) and the connection wires (152) of the rotor winding (15) which run to the terminal lugs (122). When the rotor (10) turns, the mechanically fixed heat-shrinkable tube (16) is homogeneously heated with hot air so that after cooling, it shrinks onto the terminal lugs (122) and connection wires (152) as well as parts of the end windings (151).
Abstract:
When the number of risers (5) is, for example, 20, ten through holes (3c) are made in the boss (3a) of an armature core, and have a size large enough to view the backs of two adjacent risers through each hole (3c). After a sub-electrode (6a) is inserted into each of the through holes, a first main electrode (7a) is installed in contact with the first riser (5)(1 - (1)) of the first riser pair, and a second electrode (7a), in contact with the second riser (5)(6 - (2)) of the sixth riser pair. These risers are welded to the respective electrodes, and then, every other electrode of the rest main electrodes is welded to the corresponding riser, thus all the risers being welded to the electrodes.