摘要:
A vehicle AC generator having a rotor located with in a main unit of the generator and journaled at a rotary shaft includes a rectifier unit 21, including a plurality of diodes, a circuit board, and positive-electrode and negative-electrode side cooling plates, for rectifying an AC current. A rear bracket covers at least one of the cooling plates. Preferably, the diodes are soldered to the cooling plates, which are formed in an arcuate-belt shape. Diode leads oppose each other diametrically; connection terminals of the circuit board are collectively spot-welded. The cooling plate is provided with radial cooling fins, allowing air to flow smoothly and, thus, cooling at a relatively high efficiency. The rectifier unit is mounted in the rear bracket, the cooling plate is directly connected to the bracket, and its heat is radiated therefrom. The diodes are arranged such that they overlap diametrically in the generator, allowing its axial length to be reduced.
摘要:
Phase coil lead wires of a vehicle-mounted alternator with two three-phase star connections are led almost in parallel out of the armature in an axial direction, welded to lead wire connection parts of insert terminals of a circuit board, and connected in parallel to form the star connections by way of the insert terminals. The star connections are achieved in a solderless manner, without twisting or bending the phase coil lead wires. Consequently, there is no possibility of injuring the lead wires due to applications of large stress.
摘要:
The stator winding has winding assemblies that are disposed in a stator core so as to be stacked in three or more layers in a radial direction such that slot-housed portions line up in single columns in a clot depth direction inside slots, and radial widths of return portions of the winding assemblies that are mounted so as to be stacked in a radial direction are made sequentially narrower in order of return portions of a winding assembly that is positioned centrally, return portions of a winding assembly that is positioned on an inner circumferential side, and return portions of a winding assembly that is positioned on an outer circumferential side.
摘要:
An alternator is provided with a rectifier including a positive-side and a negative-side heatsink that cool rectifier elements corresponding to each heatsink and a circuit board that holds the positive-side and the negative-side heatsink, wherein one of either the positive-side and the negative-side heatsink or the circuit board is provided with engaging holes, and the other with engaging protrusions that are engaged with the holes.
摘要:
An object of the present invention is to provide a pharmaceutical agent useful for treating and preventing neurological disease, having satisfactory solubility and oxidative stress-mediated cell death suppressive activity as well as capable of exhibiting excellent blood-brain barrier permeability. The present invention is directed to an acylaminoimidazole derivative represented by general formula (I) or a salt thereof, and a pharmaceutical and a therapeutic or preventive agent for neurological disease containing the same, as an active ingredient.
摘要:
In the automotive rotary electric machine stator according to the present invention, a stator winding is constituted by distributed windings, slot-housed portions and root portions of coil end portions are formed so as to have flat cross sections, and the slot-housed portions are housed in the slots in contact with each other so as to line up in a single column in a radial direction such that long sides of the flat cross sections are oriented circumferentially. Flatnesses of root portions of the coil end portions that are radially adjacent and that extend outward in different circumferential directions from the slots are mutually different.
摘要:
Provided is a vehicle AC generator that further enhances safety at the time of a vehicle collision, without resorting to changes in material or changes in overall thickness. A vehicle AC generator 50 has: a rotor 5 provided on a shaft 4; a stator 10 disposed so as to oppose the rotor; a rectifier 12 rectifying current generated in the stator; a regulator 13 adjusting voltage generated in the stator; and a resin cover 14 covering the rectifier. A partitioning section 15 is integrally formed on the inner side of the resin cover. The partitioning section extends in the peripheral direction and rises in the axial direction of the shaft.
摘要:
A method to manufacture an optical module is disclosed, wherein the optical module has an optically active device on a lead frame and a lens co-molded with the active device and the lead frame by a transparent resin as positioning the lens with respect to the lead frame. The molding die of the present invention has a positioning pin to support the lens during the molding. Because the lead frame is aligned with the molding die, the precise alignment between the active device on the lead frame and the lens is not spoiled during the molding.
摘要:
The present invention provides an automotive rotary electric machine that can suppress unnecessary disengagement of a protective cover by increasing supporting strength for the protective cover.The automotive rotary electric machine according to the present invention includes: a rectifier and a voltage regulator that are disposed outside a first axial end of a casing; and a resin protective cover that is formed so as to have a cup shape that is constituted by a bottom portion and a cylindrical peripheral wall portion, and that is mounted onto a casing so as to cover the rectifier and the voltage regulator. The protective cover is held by a circuit board of the rectifier by coupling by snap-fitting a plurality of projections that are disposed so as to protrude from an inner circumferential wall surface of the peripheral wall portion to a plurality of projection-engaging portions that are formed on an outer peripheral wall surface of the circuit board so as to be separated circumferentially.
摘要:
A light receiving device includes a microlens 21 located in each of regions corresponding to pixels, the microlens being disposed on a rear surface of an InP substrate 1. The microlens is formed by using a resin material having a range of a transmittance of light in the wavelength region between 0.7 and 3 μm of 25% or less, the transmittance being 70% or more.