摘要:
An automotive alternator includes a magnet holder that is composed of first and second magnet holder pieces. Each of the first and second magnet holder pieces is made of a nonmagnetic metal plate to have a one-piece structure. Each of the first and second magnet holder pieces includes a plurality of receiving portions, each of which receives a permanent magnet, and a plurality of connecting portions. All the receiving portions of the first magnet holder piece have the same orientation. Each of the connecting portions of the first magnet holder piece connects a circumferentially-adjacent pair of the receiving portions of the first magnet holder piece. All the receiving portions of the second magnet holder piece have the same orientation. Each of the connecting portions of the second magnet holder piece connects a circumferentially-adjacent pair of the receiving portions of the second magnet holder piece.
摘要:
The vehicle-use generator driven by a vehicle engine at a rotating shaft thereof includes a rotor rotatably mounted to the rotating shaft, a stator fixedly located radially outward of the rotor, a cooling fan fixed to the rotor to rotate together with the rotating shaft in order to generate cooling air for cooling the stator, and a housing that houses the rotor and the stator and rotatably supports the rotating shaft. The housing is provided with ribs arranged in a circumferential direction of the rotating shaft so as to form cooling air outlet windows. The ribs are inclined with respect to a radial direction of the rotating shaft, and shaped such that widths of the ribs are gradually changed cyclically in the circumferential direction.
摘要:
A brushless alternating current generator for vehicles comprises a stator, rotor, field winding, rectifier, housing, cover, and extension member. The rectifier has plural rectifying elements to rectify a voltage from the stator winding and output the rectified voltage and a radiating fin to which the rectifying elements are attached. The housing has a side wall and houses both the stator and the rotor and has an end face to which electric parts including the rectifier are attached. The side wall Is along the axial direction. The end face is along the radial direction. Both the side wall and the radiating fin are mutually adjacent to provide a gap in the radial direction. The cover encloses the end face of the housing and has plural air inlets that takes in cooling air. The extension member is secured to the cover and extends into the gap in the axial direction.
摘要:
A brushless alternator includes a stationary field winding, a rotor, a stator, a rectifier, a terminal, and a protective resistor. The stationary field winding creates a magnetic flux. The rotor creates a rotating magnetic field with the magnetic flux created by the field winding. The stator includes three different-phase windings to generate a three-phase AC power in the rotating magnetic field created by the rotor. The rectifier rectifies the three-phase AC power generated by the stator into a DC power. The terminal is provided so that AC power generated by one of the three windings of the stator can be output from the alternator to external through the terminal. The protective resistor is electrically connected between the terminal and the one of the three windings of the stator to protect the alternator from electrical damage.
摘要:
A Lundell type rotor of an alternator has a rotor core disposed on an outer side of a field coil in a radial direction of the rotor, and a non-magnetic claw pole joint ring. The rotor core has claw poles disposed along a circumferential direction of the rotor at predetermined intervals. Each claw pole extends along an axial direction of the rotor and is magnetized in response to an electric current supplied to the field coil. The joint ring is formed by spirally bending a long band bar in a coil shape and has turn portions disposed along the axial direction. Each turn portion of the joint ring has no seams and is attached to inner side surfaces of the claw poles in the radial direction.
摘要:
A touch-sensored display device 20 according to the present invention includes: a counter substrate 6 disposed on a viewer side of an active matrix substrate 8 via a display medium layer 4, the counter substrate 6 having a counter electrode 5 which opposes pixel electrodes; a display panel driving circuit 14 for supplying to the counter electrode 5 a common voltage which undergoes periodic inversion in polarity; a transparent conductive film 7 for position detection placed so as to oppose the counter electrode 5 via the counter substrate 6; a strobe signal generation circuit 32 for generating a strobe signal which is in synchronization with a polarity inversion period of the common voltage, and a noise-cut current signal generation circuit 30 for generating a noise-cut current signal which is obtained by eliminating based on the strobe signal a predetermined portion from a current flowing from a terminal connected to the transparent conductive film 7 for position detection.
摘要:
A projection type color image display apparatus of the present invention includes: a light source section for generating white light beams; a first fly-eye lens array comprising a plurality of lenses for forming a plurality of secondary light source image spots of the light source section; a second fly-eye lens array comprising at least the same number of lenses as the first fly-eye lens array, provided near a position where the plurality of secondary light source image spots are formed by the first fly-eye lens array; a microlens array comprising a plurality of microlenses, wherein the light beams which have passed through the respective lenses of the second fly-eye lens array are superimposed on one another on the microlens array; a single image display device comprising a plurality of color pixels arranged in a predetermined arrangement for modulating the light beams from the microlenses; a color separator provided in a predetermined position in an optical path from the light source section to the microlens array for color-separating the white light beams into R, G and B beams; and a projection lens for projecting the light beams output from the image display device.
摘要:
A video caption detection scheme capable of detecting captions from the coded video data which are coded by using a combination of predictive coding and motion compensation, without requiring the decoding of coded video data into frame images. In this video caption detection scheme, whether each pixel/block in the video data is coded by using inter-frame correlation without using motion compensation or not is judged. Then, a region in the video data at which pixels/blocks that is judged as being coded by using inter-frame correlation without using motion compensation are concentrated time-wise and space-wise, is detected as a caption region. The detection can be realized by counting a frequency of appearance of a pixel/block which is judged as being coded by using inter-frame correlation without using motion compensation, at each pixel/block position of a frame over a prescribed counting period, and then comparing the counted frequency of appearance with a prescribed threshold value.
摘要:
The present invention relates to a method for displaying hierarchical structures. The method of the present invention can display graphically hierarchical structures of nodes from the nodes that are branch points, relay points or end points corresponding to apparatuses or functions and the connection relationships between the nodes. The display method of the present invention has the steps of arranging the nodes of the same layer subordinate to the same node on the same ellipse, arranging the subordinate ellipse of the same layer concentrically on an ellipse larger than the ellipse of the upper layer, and displaying the arranged hierarchical structure of nodes.
摘要:
A photoresist is applied to a first substrate made of glass or resin which has been subjected to alignment treatment. Next, the photoresist is exposed and developed by UV light so as to form a non-optical rotatory region in a stripe manner after a mask having a desired pattern is provided on the photoresist. Then, polymerized liquid crystal is applied or dropped on the substrate complex thus prepared so far after an alignment layer on the substrate is rubbed. Further, a second substrate whose surface has been subjected to alignment treatment is placed on the substrate complex such that the directions of the alignment of the two substrates are orthogonal to each other, and the substrate thus positioned is pressed against the substrate complex. Finally, the substrate complex is irradiated by the UV light to cure the polymerized liquid crystal so as to form an optical rotatory region, thereby completing an optical rotatory device.