摘要:
This repair method for a hollow fiber membrane module is a method for repairing a leaking section occurring in the hollow fiber membrane module, the repair method having a repair step for using a repair adhesive that hardens due to a composite curing function that comprises a moisture-curing function and a photo-curing function, to repair the leaking section.
摘要:
This repair method for a hollow fiber membrane module is a method for repairing a leaking section occurring in the hollow fiber membrane module, the repair method having a repair step for using a repair adhesive that hardens due to a composite curing function that comprises a moisture-curing function and a photo-curing function, to repair the leaking section.
摘要:
A rotary electric machine is provided in which the press-fit load of a stator magnetic pole to a frame is stabilized, thus stabilizing the performance of the rotary electric machine, and that has high anti-corrosiveness and anti-rusty sealing property and is inexpensive. Particularly a rotary electric machine suitable for a motor for motor power steering apparatus is provided. In a rotary electric machine having a stator magnetic pole press-fitted and fixed on an inner circumferential surface of a cylindrical frame made of a steel plate and having a rotor arranged via a gap to an inner circumferential side of the stator magnetic pole, the frame is formed by pressing a surface-treated steel plate having a plating layer of aluminum, magnesium, silicon, and zinc for the remaining part formed on a surface of the steel plate, into a cylindrical shape.
摘要:
An electro-optical device includes a substrate, a plurality of self-emitting elements formed in the substrate, a sealing member attached to the substrate so as to seal the self-emitting elements in cooperation with the substrate, and a circuit that is disposed to overlap the sealing member and that drives or controls the self-emitting elements.
摘要:
A rotation angle detector includes a stator core (2) comprised of a plurality of core sheets (4) each having plural core members (4a) each including a tooth and a yoke portion (5a, . . . , 5h, 4b) disposed in a strip-like array with adjacent core members being coupled to one another by coupling means (4d) at yoke end portion. The core member is laminated. The stator core is shaped into an annular form by bending the core members at coupled portions so that the tooth portions extend centrally while capable of extending substantially linearly upon expansion thereof. An exciting winding (8) and output windings (9, 10) of n phases are wound on the tooth portions. A rotor core (3) is disposed rotatably relative to the stator core such that gap permeance between the rotor core and the tooth portions changes sinusoidally as a function of the rotation angle.
摘要:
A rotary electric machine of the present invention includes a yoke, a multi-polar magnetic field portion composed of 4 poles fixed to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature fixed to the shaft having a winding composed of a conductor wire wound by double wave winding into an even number of slots formed on the outer circumferential surface of a core so as to extend in the axial direction thereof, a commutator comprising a plurality of segments fixed to an end portion of the shaft, and a plurality of brushes contacting the surface of the commutator. With this arrangement, there can be obtained a rotary electric machine capable of reducing operation noise.
摘要:
A motor for an electric power steering assembly includes a yoke, a multipolar magnetic field portion composed of at least four poles secured to the inner wall of the yoke, a shaft disposed within the yoke so as to be able to rotate freely, an armature secured to the shaft having a winding constructed by winding wiring into an even number of slots formed on the outer circumferential surface of a core so as to extend in the axial direction thereof, a commutator comprising a plurality of segments secured to an end portion of the shaft; and a plurality of brushes contacting the surface of the commutator.
摘要:
A motor for an electric power steering assembly comprises permanent magnets constituting four or more poles secured to the inner wall of a yoke, a shaft disposed inside the yoke so as to be able to rotate freely, an armature secured to the shaft having a winding composed of wiring wound by a lap winding method into slots formed on the outer circumferential surface of a core so as to extend in the axial direction thereof, a commutator comprising a plurality of commutator segments secured to an end portion of the shaft, brushes disposed singly on the positive side and the negative side of the commutator so as to contact the surface thereof; and equalizing connectors connecting commutator segments which should have the same electric potential to each other.
摘要:
A stator of an AC generator according to the present invention has a stator core which is formed in a ring shape having tooth portions protecting inside said ring shape and forming slots. The width of the slot formed in a stator core is designed in such a manner that, with respect to the depth direction thereof, each inner half section of the slot is a tapered shape having a larger bottom width, and each outer half section of the opening-side of the slot has a constant width between parallel edges, so as to allow a stator coil to be inserted easily between the tooth portions.
摘要:
A vehicular AC generator comprises a stator connected to a front bracket and a rear bracket, a rotor fixedly mounted on a rotational shaft rotatably supported by both the brackets, and a front fan and a rear fan each serving for cooling the generator. A plurality of air intake holes are formed around the inner circumstance of each bracket, while a plurality of air outlet holes are formed around the outer circumstance of the same. As the rotor is rotated, cooling air is introduced into the generator through the air intake holes and then exhausted to the outside through the air outlet holes while cooling the interior of the generator. The number of blades on each fan is set to a certain odd numeral, and moreover, the number of blades on the front fan is different from that of the rear fan. The number of blades on each fan may be set to an odd numeral which is not a multiple of numeral of three. Alternatively, the number of blades on at least the front fan may be set to an odd number which is not a multiple of the number of air intake holes formed on the front bracket. The aforementioned characterizing feature of the vehicular AC generator is equally applicable to a three-phase AC generator as it is.