摘要:
In this stator, in each of a plurality of slots, a protruding length, in an axial direction, of each of protrusions of an outermost coil portion that is a linear coil portion on a radially outermost side and of an innermost coil portion that is a linear coil portion on a radially innermost side is shorter than a protruding length, in the axial direction, of protrusions of intermediate coil portions that are linear coil portions disposed between the outermost coil portion and the innermost coil portion.
摘要:
In a stator, a bus bar portion includes a joint portion that is formed at an end of the bus bar portion and is joined to a terminal portion of a different one of the coils, and a connecting portion that is formed between the joint portion and a winding portion, and in the coils of each of three phases that are U-phase, V-phase, and W-phase, a first coil and a second coil that serve as the two coils joined to each other are joined to each other by the joint portion of the bus bar portion of the first coil and the terminal portion of the second coil, and ends of the terminal portions of middle coils that are the coils disposed between the first coil and the second coil are located at a height closer to a stator core than the connecting portion of the first coil in a direction of a central axis of the stator core.
摘要:
In an armature coil according to the present invention and, more particularly, in an armature coil including a plurality of coil conductors wound around a plurality of slots which are formed in a stator core and opened on the radially inner side, the circumferential width of the plurality of the coil conductors is formed in a substantially trapezoidal shape which gets narrower toward the radially inner side and the cross-sectional areas of the plurality of the coil conductors in the slot are each substantially the same and the circumferential width thereof is formed narrower as the coil conductor is arranged toward the radially inner side; and one coil conductor is formed in a convex shape and another coil conductor is formed in a concave shape along the convex shape.
摘要:
An electric motor-driven compressor having an electrical terminal block assembly and corresponding method of assembly are provided. The electrical terminal block assembly includes a base plate that has a staging feature for receiving a lug end of a motor stator cable prior to connection of the motor stator cable with a terminal bar of the terminal block assembly. In this way, once the terminal block assembly is lowered into the enclosure and the motor stator cable is no longer visible to the user, a stator cable fastener may be passed through a stator cable mounting hole in the terminal bar to engage the stator cable lug that is being held in the proper position by the staging feature of the base plate. Upon rotation of the stator cable fastener, the stator cable lug may be drawn into conductive engagement with the terminal bar.
摘要:
Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Herstellen einer elektrotechnischen Spule mit einer oder mehrerer Wicklung(en), wobei eine eine Spulengeometrie enthaltende Negativform, insbesondere eine verlorene Form oder eine Dauerform, bereitgestellt oder hergestellt wird, wobei ein zur Ausbildung der Wicklung(en) geeignetes Spulenmaterial, insbesondere ein elektrisch leitfähiges Metall, in flüssiger Form in diese Negativform gegossen wird, und wobei dieses Spulenmaterial erstarrt wird und/oder man dieses Spulenmaterial unter kontrollierte Bedingungen erstarren lässt. Darüber hinaus bezieht sich die Erfindung auf entsprechend hergestellte Spulen.
摘要:
The invention relates to a stator winding for a transversal flow machine, the stator winding (98) being embodied as a cord (244) and said cord (244) having a plurality of individual wires (245). Said stator winding (98) is embodied as a coil with several windings (245), characterised in that one or more windings (245) are layered in the axial direction or radial direction.
摘要:
A device (1) for detecting and precisely locating defects (25) within the insulation of an insulated conductor (20) comprises an antenna (2), arranged to couple the high frequency signals (27) produced by the partial discharge pulses (26) generated by defects (25) within the insulating layer of the insulated conductor (20). The antenna (2) is connected to a connector (3) to be connected to a measurement device (4). The antenna (2) is a compact antenna having dimensions similar to or smaller than those of the cross section of the stator bar to be tested and is shaped to detect signals having a frequency less then 800 MHz. The present invention also refers to a method for detecting defects (25) within the insulation of an insulated conductor (20), such as for example stator bars (Roebel bars) of rotating electrical machines such as a generator or a motor or other electrical machines, during, for example, testing or manufacturing quality control operations.
摘要:
Ein Roebelstab (10) für eine elektrische Maschine umfasst eine Mehrzahl von im wesentlichen parallel verlaufenden, transponierten Teilleitern (11, 12, 13), die über- und/oder nebeneinanderliegend einen Stab mit im wesentlichen rechteckigem Querschnitt bilden, der aussen mit einer Isolation (19) umgeben ist und zwischen der Isolation (19) und den Teilleitern (11, 12, 13) Mittel (14, 14'; 15, 15'; 17, 18) zur Ausbildung eines Innenglimmschutzes (IGS) aufweist. Bei einem solchen Roebelstab wird ein besonders wirksamer Innenglimmschutz dadurch erreicht, dass die Innenglimmschutzmittel vorgeformte, abgewinkelte Profile (17, 18) aus einem elektrisch leitenden Material umfassen, welche in Längsrichtung des Roebelstabes (10) verlaufend die Kanten des aus den Teilleitern (11, 12, 13) gebildeten Stabes umschliessen, und auf welche die Isolation (19) aufgebracht ist.
摘要:
Ein Roebelstab (10) für eine elektrische Maschine umfasst eine Mehrzahl von im wesentlichen parallel verlaufenden, transponierten Teilleitern (11, 12, 13), die über- und/oder nebeneinanderliegend einen Stab mit im wesentlichen rechteckigem Querschnitt bilden, der aussen mit einer Isolation (19) umgeben ist und zwischen der Isolation (19) und den Teilleitern (11, 12, 13) Mittel (14, 14'; 15, 15'; 17, 18) zur Ausbildung eines Innenglimmschutzes (IGS) aufweist. Bei einem solchen Roebelstab wird ein besonders wirksamer Innenglimmschutz dadurch erreicht, dass die Innenglimmschutzmittel vorgeformte, abgewinkelte Profile (17, 18) aus einem elektrisch leitenden Material umfassen, welche in Längsrichtung des Roebelstabes (10) verlaufend die Kanten des aus den Teilleitern (11, 12, 13) gebildeten Stabes umschliessen, und auf welche die Isolation (19) aufgebracht ist.