摘要:
A dynamoelectric machine that can suppress increases in rotor inertia to extend belt service life and increase field magnetomotive force to increase output. In the dynamoelectric machine, first and second magnetic guidance members are fitted into first and second holding grooves that are disposed so as to extend axially on facing portions of first and second trough portions radially outside inner wall surfaces, and are disposed so as to span over first and second trough portions. First and second permanent magnets that are magnetically oriented in a reverse direction to a magnetic field that originates from a field coil are fitted into and held by interfitting grooves of the first and second magnetic guidance members so as to face inner circumferential surfaces near tip ends of second and first claw-shaped magnetic pole portions so as to have a predetermined clearance.
摘要:
When a glass fiber and an inner fiber coating layer are to be attached to a connector by removing an outer fiber coating layer while leaving the inner fiber coating layer as it is, a collective coating and the outer fiber coating layer can be removed at a stretch so that the inner fiber coating layer can easily and satisfactorily be exposed. In the ultraviolet curable resin coating layer of a coated optical fiber 17 of an optical fiber ribbon 11 for wiring of equipment, the inner fiber coating layer 15 has a Young's modulus of 600 MPa to 1000 MPa, and the outer fiber coating layer 16 has a Young's modulus of 10 MPa to 300 MPa. The material of the outer fiber coating layer 16 is made by mixing 100 weight parts of base resin, 1-30 weight parts of silicone-based additive, and 0.5 to 40 weight parts of long chain fatty acid ester compound, wherein the base resin is a material made of a urethane metha acrylate oligomer, a mono-functional or multi-functional reactive dilution monomer, and an optical initiator.
摘要:
A rotor of an AC generator for vehicle according to the invention in which a conductor is wound around a spool in multi-rows and multi-layers is characterized in that at least gaps between the conductors at the deep portion out of the gaps between the conductors from the innermost layer to the outmost layer are filled evenly with resin forming resin layers A manufacturing method of a rotor of and AC generator for vehicle according to the invention includes the steps of applying a fluid resin material to a conductor immediately before the conductor is wound on a spool., and heating the entire structure to cause the resin to be heat-cured after the conductor to which the fluid resin material has been applied is wound around the spool in multi-rows and multi-layers.
摘要:
Each of plural slots has a slot peripheral wall SW and a slot opening 53d. The slot peripheral wall SW has a slot bottom wall 53a, a pair of slot side walls 53b and 53c opposing to each other and continuing to end portions of the slot bottom wall 53a, and is covered with an insulation coating 55 made of an electrical insulation material. The insulation coating 55 is formed over continuously from the slot bottom wall 53a to the pair of slot side walls 53b and 53c, and a pair of holding grooves 56 opposing to each other is formed in the insulation coating 55 at the vicinity of the slot opening 53d. The groove walls CW of the pair of the holding grooves 56 are formed in the insulation coating 55, and an electrical insulation member 57 to close the slot opening 53d is inserted in the pair of holding grooves and held between the pair of holding grooves 56.
摘要:
A rotor 1 of an AC generator for vehicle according to the invention in which a conductor 6 is wound around a spool 5 in multi-rows and multi-layers is characterized in that gaps between the conductors at least at the deep portion 22 out of the gaps between the conductors from the innermost layer to the outmost layer are filled evenly with resin 7 forming resin layers. A manufacturing method of a rotor 1 of and AC generator for vehicle according to the invention includes the steps of applying a fluid resin material 7 to a conductor 6 immediately before the conductor 6 is wound on a spool 5, and heating the entire structure to cause the resin 7 to be heat-cured after the conductor 6 to which the fluid resin material 7 has been applied is wound around the spool 5 in multi-rows and multi-layers.
摘要:
An ac generator for a vehicle is constituted so that the thickness in insulation layers of conductors in the slot-in portions located in the slot is smaller than the other to permit a metal portion of conductors to be much larger and to increase a density of conductors in the slots, causing heating from electrical conductors to efficiently conduct to a laminated core and a housing. On the contrary, the thickness in insulating layers of the cross-over portions is larger than the other to assure insulation capability among the coils and to prevent conductors of the cross-over portion axially exposed from the core to air from water immersion to improve an electrolytic corrosion resistibility without disposing unnecessary space among coils.
摘要:
An object of the present invention is to provide a buffered optical fiber, which excels in environmental characteristics and mechanical characteristics and has high flame retardancy and excels in optical transmission characteristics, and to provide a buffered optical fiber, which is terminated with a connector and uses this buffered optical fiber. The buffered optical fiber of the invention is provided with a second coating layer on an outer peripheral surface of an optical fiber produced by providing a first coating layer on an outer peripheral surface of a glass fiber. A second resin composition constituting the second coating layer comprises 100 to 250 weight parts of metal hydroxide and 10 to 100 weight parts of a nitrogen-based flame retardant material per 100 weight parts of the base polymer. Further, the second resin composition does not contain halogenated materials.
摘要:
An aqueous resin composition used to form an undercoat layer of a thermosensitive recording medium, comprising a water-repellent filler (A) having a water-repellent surface, which is composed of at least one of an organosilicon compound and an organofluorine compound, and an aqueous solution or water dispersion of a film-forming resin (B), which contains the water-repellent filler (A).
摘要:
First, a rectifier assembly is assembled from a negative heat sink assembly, a positive heat sink assembly, a circuit board assembly, and a guide. Subsequently, stator coil connecting terminals of the rectifier assembly are chucked by using a grounded chucking jig. Then, under this condition, powder coating charged with a plus polarity is sprayed to this rectifier assembly, and thus the sprayed powder coating is absorbed onto a surface of an exposed metal of the rectifier assembly by the electrostatic force. Thereafter, a heating process operation is carried out to heat/harden this powder coating, so that the insulating film is formed on the surface of the exposed metal of the rectifier assembly.
摘要:
A fluorescent display apparatus having a plurality of anodes linearly arranged and divided into consecutive several groups each containing the same number of anodes. Each of the anodes disposed in corresponding positions of the respective anode groups is electrically connected in parallel, and a control grid is provided in each of the anode groups in an opposed relation. A particular anode representing the value of an input signal is illuminated by energizing one of the anodes in the respective anode groups and one of the control grids.