摘要:
A switching device includes a movable coil which is reinforced by a stiffener to increase the resistance of the movable coil to bending moments. The stiffener may include a nonmagnetic case which surrounds the movable coil. Alternatively or in addition, it may include a resin or other material encapsulating the movable coil.
摘要:
A switching apparatus for multiphase electric power includes switching units corresponding to different phases. Each switching unit includes an operating mechanism having a movable coil disposed between two fixed coils, and a switch portion having a movable contact operatively connected to the movable coil. A separate power supply may be provided for each switching unit to permit individual control of the different phases.
摘要:
A switching device includes a pair of fixed coils and a pair of movable coils, with one pair being disposed between the other pair. Two of the coils may be connected back to back on opposite sides of a support plate to increase the stiffness of the coils and reduce damage due to impact between the fixed and movable coils. The coils include two sets of coils, each set including one of the fixed coils and one of the movable coils. The coil sets can be driven simultaneously or at different times to effect contact opening and closing.
摘要:
A switching apparatus includes a switch, a movable coil, stationary coil members, and a direction-of-conduction setter comprising diodes. The switch has a stationary electrode. The movable coil is fixedly mounted on a movable shaft coupled to the movable electrode. The stationary coil members are opposed to the movable coil. The power supply supplies an excitation current to the coils. The direction-of-conduction setter sets the direction of conduction, in which the excitation current flows from the power supply into the coils, so that the coils will electromagnetically react on each other. This arrangement provides highly efficient electromagnetic driving. Moreover, an opening power supply or closing power supply is required to have only a small capacity.
摘要:
A switching assembly includes a switch portion having a fixed electrode and a movable electrode which are separable, a movable portion secured between a movable shaft connected to the movable electrode and a movable coil by a magnetic body, and a fixed portion having a magnetic body disposed radially inside a fixed coil disposed opposite the movable portion, thereby enabling intensification and swift establishment of magnetic fields generated between the coils.
摘要:
A laminated core manufacturing method is linearly arranging and punching out a plurality of separate core pieces formed of a back yoke portion and a magnetic-pole teeth portion protruding from the back yoke portion and die-cut caulking. The manufacturing method includes: a first step of punching out a first region located on an opposite side to the magnetic-pole teeth portion between adjacent ends of the back yoke portions of the core pieces; a second step of punching out a second region located on a side of the magnetic-pole teeth portion between the adjacent ends of the back yoke portions of the core pieces; a third step of punching out a region that brings the first region punched out in the first step and the second region punched out in the second step into communication; and a fourth step of forming the magnetic-pole teeth portion by punching.
摘要:
Provided are an armature for rotary electric machine, an insulator therefor, and a coil winding device for winding a conductive wire on a tooth to which the insulator has been attached, wherein in each of all forward-wound coils and reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which conductive wires in respective layers of the coil are parallel, a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, and an insulator has a guide for guiding the conductive wire along a base of an inner flange of the insulator at a first turn of each coil.
摘要:
In a method for winding a core having an arch-like yoke portion, a tooth portion, and a tooth end portion by revolving a nozzle for feeding a conductive wire, when winding is performed in a bow-like area surrounded by an inner circumferential arc of the yoke portion and the chord thereof, upon winding on an end surface of the core, the nozzle moves so as to draw a convex-shaped trajectory proceeding from the tooth end portion side toward the yoke portion side with reference to the chord of the bow-like area, and upon winding on a side surface of the core, the nozzle returns from the yoke portion side to the tooth end portion side with reference to the chord of the bow-like area, and then moves along the side surface of the core.
摘要:
Provided is a rotor for a rotating electric machine which includes: an N pole integrally-stacked core in which a plurality of stacked tooth portions that contact with N pole side portions of adjacent ones of first permanent magnets are integrated with each other; and an S pole integrally-stacked core in which a plurality of stacked tooth portions that contact with S pole side portions of adjacent ones of the first permanent magnets are integrated with each other, and in which the N pole integrally-stacked core and the S pole integrally-stacked core are disposed around a rotation shaft having a non-magnetic outer circumferential surface so as to dispose the first permanent magnets and a gap therebetween.
摘要:
Provided are an armature for rotary electric machine, an insulator therefor, and a coil winding device for winding a conductive wire on a tooth to which the insulator has been attached, wherein in each of all forward-wound coils and reversely-wound coils, a part wound on a first side surface of two side surfaces of each tooth that are opposed to the respective adjacent teeth forms a straight portion in which conductive wires in respective layers of the coil are parallel, a part wound on a second side surface forms a cross portion in which the conductive wire in an upper layer is wound in a crossed manner on the conductive wire in an adjacent lower layer, and an insulator has a guide for guiding the conductive wire along a base of an inner flange of the insulator at a first turn of each coil.