摘要:
An upper sealing ring and a lower sealing ring are adhered by sealing solder. The width of tip end of sealing projection is narrower than the width of the lower sealing ring. Therefore, the sealing solder is placed on lower sealing ring and on the side surface of upper sealing ring. Further, an upper connection pad and a lower connection pad are adhered by connecting solder. The width of a tip end of a connection projection is narrower than the width of lower connection pad. Therefore, the connecting solder is placed on the lower connection pad and on the side surface of upper connection pad. Thus, a package is provided, which attains satisfactory electrical connection and hermetic seal after solder joint of the upper and lower substrates.
摘要:
In a motor, an upper surface of a flange portion of a shaft is arranged axially below a bottom end surface of a rotor core. A spacer having an axial thickness slightly greater than that of the flange portion is arranged on a radially outer side of the flange portion. A bottom surface of the spacer makes contact with an end plate whose inner circumferential surface has a radius, centered about a central axis, smaller than a radius of the flange portion. The end plate is secured to the rotor core via a fixing member.
摘要:
A magnet (10) that is an annular member is fixed or secured on an outer circumference surface or an inner circumference surface of a yoke (4) that is a cylindrical member. An lower end surface in the axial direction of the magnet is fixed or secured to the same plane as a lower end surface in the axial direction of the yoke (4), or the lower end surface in the axial direction of the magnet is fixed or secured so as to protrude a little from the lower end surface in the axial direction of the yoke. An annular groove (4a) that is recessed outward in the radial direction or inward in the radial direction is formed on a part of the outer circumference surface or the inner circumference surface that is continuous to the yoke (4).
摘要:
In order to suppress base line drift due to change in a light source and to start analysis with a short waiting time so as to improve quantitative accuracy of analysis, a detected signal in a measurement wavelength and a detected signal in a reference wavelength are measured at each of arbitrary light intensity points by varying light intensity of a light source, and the corresponding relationship between the wavelengths is stored. An incident light intensity of the measurement wavelength is estimated from a detected signal in the reference wavelength based on the stored data.
摘要:
An optical disk having a warp preventive film for preventing the warp of the substrate which does not exfoliate for a long period by forming the warp preventive film on a textured area on the substrate surface with a minute embossment, and a method of manufacturing the optical disk by controlling the plasma etching condition for forming a textured area for reinforcing the bonding force of the warp preventive film on the substrate surface, so that the warp preventive film being bonded after forming the textured area may not exfoliate for a long period.
摘要:
A scanning motor having a bracket, a shaft member secured to the bracket, a rotor rotatably supported by the shaft member via a pair of bearings and a polygonal mirror fastened to the rotor, the polygonal mirror being disposed at a position on the outside of either of a pair of the bearings. The rotor has a rotor body and a yoke member which constitutes a balance adjusting groove in cooperation with a frequency generating magnet fastened to the yoke member. A motor having a bracket, a rotor, magnetic force generating means disposed in the bracket, magnetic flux changing means fastened to the rotor, sensing means for sensing change in the magnetic flux taken place in a magnetic circuit constituted by the magnetic force generating means and the magnetic flux changing means and a covering member for covering the magnetic force generating means.
摘要:
A cowl region construction of a motor car, particularly a construction of a joint of a roof pillar of closed sectional construction extending in a vertical direction and a dashboard support member of closed sectional construction extending in a longitudinal direction is disclosed. An opening is formed in the dashboard support member at the region where the dashboard support member and the roof pillar are joined and a cowl panel is arranged at the front side of the dashboard support member and is spot-welded to the roof pillar.
摘要:
An analyzing apparatus is controlled by a microcomputer which reads out programmed information from a magnetic card. The magnetic card does not always travel at a constant speed, and therefore, it is difficult for the microcomputer to entirely resort to the software for carrying out the signal processing required for the control of the analyzing apparatus. In order to obviate this difficulty, a hard logic circuit is provided to read out inverted bit information from the magnetic card, and the information thus read out is supplied to the microcomputer so that the microcomputer can reliably carry out the processing steps including bit counting and data reception. The hard logic circuit includes a flip-flop storing an FM signal recorded on the magnetic card and an exclusive-OR gate comparing the flip-flop output with the FM signal. A simple logic circuit is also provided for writing the FM signal on the magnetic card.
摘要:
In a busbar unit, which is a distributing device arranged to supply electrical currents to coils, a busbar holder is arranged to support coil connection busbars and sensor connection busbars. A bottom surface portion of a busbar holder body portion includes a bearing holder holding a bearing defined therein, and includes resistors and capacitors defining a portion of a Hall IC circuit arranged thereon. The Hall IC circuit is arranged to input and output electrical signals to or from Hall ICs. An upper surface portion includes sensor holders each holding a separate one of the Hall ICs defined therein. A connector portion is arranged to project radially outward from the busbar holder body portion. The sensor connection busbars and each of the coil connection busbars are arranged one above another along an axial direction.
摘要:
A rotor portion of a motor includes a rotor core and a plurality of field magnets arranged in a circumferential direction at the rotor core. The rotor core includes at a flux barrier portion thereof arranged between a pair of field magnets of opposite magnetic polarities arranged next to one another a flux barrier hole. The flux barrier hole is independent of a magnet retaining hole in which the field magnet is retained. The magnet retaining hole includes a concave portion extending from a side thereof nearest to the flux barrier hole toward the corresponding flux barrier hole.