Abstract: A magnetic induction device includes a cylindered shell, a stator assembly having a plurality stator units fixed axially and equal spaced inside the cylindered shell, each stator unit including a stator base and a plurality of coils azimuthally arranged within the stator base with equal radical angle distribution, and a rotor assembly having a plurality of rotor units, each rotor unit including a rotor base and a plurality of permanent magnets azimuthally arranged inside the rotor base with equal radical angle distribution, wherein the plurality of rotor units are connected by a rotation shaft for rotating coherently and each rotor unit is arranged in between neighboring stator units.

Abstract: The present invention discloses a magnetic rotary disc, which mainly comprises a metal rotary body and a plurality of magnetic elements. The metal rotary body is formed of metal iron, the magnetic elements are arranged on peripheral edge of the metal rotary body in a uniform distribution. Each magnetic element comprises a first magnetic pole portion and a second magnetic pole portion. All of the first magnetic pole portions and the second magnetic pole portions respectively belong to upper portion and lower portion of the magnetic elements. Most particularly, in all magnetic elements, the lower side of the second magnetic pole portion of any magnetic elements and the upper side of the first magnetic pole portion of the other magnetic elements partially attract each other, so that only the magnetic force lines of the first magnetic pole portions are retained outside the peripheral edge of the metal rotary body.

Abstract: The present invention discloses a novel magnetic and electrical energy transformation device, which comprises a control module, to provide operation control of device; a driving motor module, which comprises a driving circuit and a driving motor winding to provide an initial voltage V0 for the operation of the device; a flywheel module, connecting to the driving motor module, rotated by driving motor module and provide stable operation speed of the device; a guiding rotor, disposed around the flywheel module and comprises unidirectional bearing inside the guiding rotor; and, magnetic rotary disc, to generate variation of magnetic flux by rotation for producing induced electromotive force.

Abstract: The present invention discloses a magnetic rotary disc, which mainly comprises a metal rotary body and a plurality of magnetic elements. The metal rotary body is formed of metal iron, the magnetic elements are arranged on peripheral edge of the metal rotary body in a uniform distribution. Each magnetic element comprises a first magnetic pole portion and a second magnetic pole portion. All of the first magnetic pole portions and the second magnetic pole portions respectively belong to upper portion and lower portion of the magnetic elements. Most particularly, in all magnetic elements, the lower side of the second magnetic pole portion of any magnetic elements and the upper side of the first magnetic pole portion of the other magnetic elements partially attract each other, so that only the magnetic force lines of the first magnetic pole portions are retained outside the peripheral edge of the metal rotary body.

Abstract: A fan blade and shaft mounting arrangement for bathroom exhaust fan includes a housing, a fan blade which has a hub, a center tube at the center of the hub and blades arranged around the hub, a fan shaft inserted through the center tube of the fan blade and supported between two bearing members in the housing, and a torsion spring that has a torsionable portion sleeved onto the fan shaft and a positioning portion fastened to the fan blade. When the fan shaft is rotated, the torsionable portion of the torsion spring is twisted and secured firmly to the fan shaft so that the fan blade is rotated with the fan shaft.

Abstract: A mini axial fan includes a fan housing and a fan unit, which is mounted in the fan housing. The fan unit has a hub with integrated blades around the periphery and integrated axles at front and back sides, and two metal pins respectively press-fitted into a respective blind hole in the free end of each of the axles for rotatably supporting the fan unit on a respective bearing in the fan housing. The fan unit is injection molded from plastics and then the metal pins are installed in the fan unit so that the precision of the metal pins is maintained and the manufacturing cost of the fan unit is reduced.

Abstract: A high-performance low-noise combination axial-flow fan includes a fan hub that has a center connection portion for the connection of a fan motor shaft and a mounting groove extending around the periphery, and fan blades each having a wedge block disposed at the inner end for fastening to the mounting groove to secure the respective fan blade to the fan hub in such a manner that no gap is seen between each two adjacent fan blades when viewed from the front side.

Abstract: A high-performance low-noise combination axial-flow fan includes a fan hub that has a center connection portion for the connection of a fan motor shaft and a plurality of mounting grooves equiangularly spaced around the periphery, and fan blades each having a wedge block disposed at the inner end for insertion into one mounting groove to secure the respective fan blade to the fan hub so that the fan blades are radially fastened to the fan hub and no gap is seen between each two adjacent fan blades when viewed from the front side.

Abstract: A magnetic floating shaft set is disclosed to include two guides kept apart from each other at a distance in such a manner that one guide is movable relative to the other guide to adjust the distance between the two guides, a shaft set in between the two guides with the two distal ends thereof respectively facing the two guides, a magnetic member mounted on the shaft, and a winding coaxially mounted around the shaft for generating a magnetic field to induce the magnetic member and to further cause floating of the shaft between the two guides and rotation of the magnetic member on the shaft.

Abstract: A computer input device includes a cursor control device for controlling the positioning of a cursor on a screen of a computer, a handwriting input member installed in the cursor control device for handwriting input with an input pen, operation buttons, and a selection switch switchable between a first mode position for allowing operation of the operation buttons to control the operation of the cursor control device and a second mode position for allowing operation of the operation buttons to control the operation of the handwriting input member.

Abstract: A heat dissipating structure of accelerated graphics port (AGP) card, disposed at the AGP card for dissipating heat with respect to a certain chip therein, at least includes an extruded aluminum heat dissipating section and a fan. The invention is characterized that, at least one heat conducting pipe is disposed at a lower portion of the extruded aluminum heat dissipating section, and extended to a rear side of the AGP card; and thermal energy produced by the AGP card chip is conducted by the heat conducting pipes to cooling fins at the rear side of the AGP card, thereby increasing an effective heat dissipating area for enhancing heat dissipation effects.

Abstract: A magnetic floating bearing of a fan includes an outer magnetic ring formed with a central axial through hole and an upper and a lower ends of the wall of the through hole having a magnetic strength greater than that of a center of the wall. An inner magnetic ring formed with a central axial fitting hole in which a rotary shaft is snugly fitted. The polarity of an outer circumferential wall of the inner magnetic ring is identical to the polarity of the wall of the through hole of the outer magnetic ring and an upper and a lower ends of the outer circumferential wall of the inner magnetic ring having a magnetic strength less than that of a center of the outer circumferential wall. Therefore, the inner magnetic ring is rotatably restricted and located within the outer magnetic ring without upward or downward detaching therefrom.

Abstract: A modularized computer servo working cabinet having side wall plates which are assembled by a plurality of unit pieces. A sliding track is installed in a proper position of each side wall plate on an inner portion thereof for receiving one or more main frame racks. The racks have a U-shape and feed track grooves installed thereon. Each unit piece is a large plate with notches and stopping portions installed thereon for assembling with assembling pieces and connecting pieces. Each assembling piece is a medium plate with a flange installed thereon for engaging with the stopping portion and with a plurality of assembling piece holes installed thereon for fixing the sliding track and locking with the connecting pieces. Each connecting piece is a small plate with at least one insertion portion having holes for engaging with the assembling pieces.

Abstract: A heat-radiator for CPU of a computer, mainly including an air exhaust box, a collection funnel means and a bellows connecting the air exhaust box with the collection funnel means. An air blower and a detector means are disposed in the air exhaust box and connected by a circuit interface board inserted in an interface socket of the computer. The collection funnel means includes a heat-radiating plate located on the CPU, whereby the heat generated by the CPU is conducted through the heat-radiating plate and radiated therefrom to the ambient air and the hot air in the collection funnel means is sucked by the air blower to flow through the bellows and the air exhaust box to be exhausted from the computer housing.

Abstract: A computer mainframe housing, of which the main materials are made in flat shapes from steel sheets with plastic directly molded thereon through the process of injection molding, including a back panel, two identical cover panels with one for the top and the other for the bottom, two identical side panels with one for the left and the other for the right, a partition board, a plurality of master board mounting plates, a main disk drive case, an auxiliary disk drive case, a front panel connected with other parts by retaining devices thereon, the front panel having a square window with a square control panel detachably mounted thereon, the main disk drive case having a square front face, the hole into which the main disk drive case is inserted, being made in the shape of a square, wherein the steel sheets of the materials provide good shielding effect against magnetic waves; the front, back, side, and cover panels can be piled up together to reduce space occupation before assembly; retaining devices are directl