Abstract: A stator comprises a bobbin with a winding wound therearound and having a central hole. Pole plates are mounted to both sides of the bobbin. Each pole plate includes a plurality of poles and a central tubular portion. The poles of the pole plate attached to a side of the bobbin and the poles of the pole plate attached to the other side of the bobbin are alternately disposed. A magnetically conductive tube is extended through the central hole of the bobbin and the central tubular portions of the pole plates.

Abstract: A fixing stricture of a miniature vibration motor includes a circuit board having a sensor, a conducting line, conducting connecting points, and a shaft hole. The conducting connecting point on the circuit board is soldered to the line connecting point of the seat plate, so that the circuit board is fixed and combined on the seat plate. A pivot shaft in turn passes through the shaft hole of the housing, the shaft hole of the rotor, and is positioned in the shaft hole of the circuit board. The rotor has a permanent magnet induced with the poles of the stator seat. The stator seat is wound with a coil, and is connected to the conducting line of the circuit board by a drawing wire. The housing receives the stator seat and the rotor therein.

Abstract: A stator bobbin for axial winding is made from insulating material and includes a first disc, a second disc, and a connecting tube that connects the first disc with the second disc. The connecting tube has a central hole and a space for winding is defined between the first disc and the second disc. A first pole plate is attached to an outer side of the first disc and a second pole plate is attached to an outer side of the second disc. A distance between an outer end of the inner side of the first disc and an outer end of the inner side of the second disc is greater than that between an inner end of the inner side of the first disc and an inner end of the inner side of the second disc.

Abstract: A miniature vibration motor structure includes an upper plate and a lower plate each having a seat hole for receiving each of two ends of a shaft column in a non-tight fit manner. The shaft column passes through the shaft hole of the bearing of the rotor in a loose fit manner. The annular permanent magnet is integrally formed on an outer periphery of the bearing. Thus, when the rotor is rotated, the center of gravity and the center of rotation of the rotor are not at the same central line. The stator seat wound with a coil has poles which may be induced with the permanent magnet of the rotor, so as to drive the rotor to rotate.

Abstract: A rotor shaft comprises an end fixed to a base of a rotor. The rotor shaft further includes a distal end having a dome and an engaging groove. The engaging groove is annular and defined by a lower wall and an upper wall. At least one of the lower wall and the upper wall is connected with the outer periphery of the rotor shaft by an inclined section or a round. The inclined section is at an obtuse angle with the outer periphery of the rotor shaft.

Abstract: A miniature vibration motor structure includes a housing having a hole for receiving and positioning one end of a shaft whose other end is positioned in a fixing plate. A rotor includes a bearing integrally combined with an annular permanent magnet. The bearing of the rotor is supported and rotated on the shaft. The bearing or the annular permanent magnet is provided with a recess or protruding block, so that the center of gravity and the center of rotation of the rotor are not in concert with each other. A stator seat is wound with a coil and has a power inlet for supplying an electric power into the stator seat. The stator seat has poles which may be induced with the permanent magnet of the rotor.

Abstract: A stator assembly structure of a direct current brushless motor includes a coil seat having a fitting hole for passage of the magnetic conducting tube. An upper pole plate and a lower pole plate are mounted above and under the coil seat respectively. At least one upper magnetic conducting plate and lower magnetic conducting plate are respectively bonded on the upper pole plate and the lower pole plate. Each of the upper pole plate, the lower pole plate, the upper magnetic conducting plate, and the lower magnetic conducting plate has a positioning hole for passage of the magnetic conducting tube. Side walls extending toward a vertical direction are formed on the pole ends of the upper pole plate, the lower pole plate, one upper magnetic conducting plate, or one lower magnetic conducting plate.

Abstract: A direct current brushless motor with axial winding and radial air-gap includes an upper housing and a lower housing each having a shaft seat defining an axial hole. A coil seat is mounted in the upper and lower housing. The poles of the upper and lower silicon steel plates are extended into the central hole of the coil seat, and are arranged in a staggered manner with each other. An insulating layer is provided in the upper and lower housings for isolating the circuit board and the upper housing and the lower housing. A rotor has a rotation shaft pivotally mounted in the axial hole of the upper housing and the lower housing. The rotor has a permanent magnet mating with the positions of the poles of the upper and lower silicon steel plates.

Abstract: A direct current brushless motor of a radial air-gap includes a rotor having a rotation shaft rotated in a magnetic conducting tube of the stator. The magnetic conducting tube has an outer wall combined with a coil seat. The coil seat has two ends respectively mounted with an upper pole plate and a lower pole plate. Each of the upper pole plate and the lower pole plate has a periphery having upper pole faces and/or lower pole faces respectively extended upward and downward therefrom. The pole faces of the upper pole plate and the lower pole plate are arranged in a staggered manner. The pole faces encompassing the coil seat are formed with larger openings for allowing pull out of a distal end of a coating wire of the coil seat.

Abstract: A assembling structure of a miniature vibration motor includes a seat plate provided with electronic elements, a sensor, and connecting points. A conducting line is provided between the sensor and the connecting points. The seat plate is formed with a shaft hole for fixing of a pivot shaft that passes through the shaft hole of the housing and the shaft hole of the rotor. The rotor has a permanent magnet induced with the poles of the stator seat. The stator seat is wound with a coil, and has connecting legs connected to the connecting points of the seat plate. The housing may be fixed on the seat plate.

Abstract: A supporting structure includes a metal axle tube, a holding member securely mounted in the axle tube, a supporting member securely mounted in the axle tube and including a supporting portion, and a fixing member securely mounted in the axle tube and including an opening. The holding member includes a hole and an inner flange is formed on an inner periphery defining the hole. A shaft is provided to a center of the rotor and includes an engaging groove. The shaft is extended through the hole of the holding member and the opening of the fixing member with an end face of a distal end of the shaft rotatably resting on the supporting portion of the support member and with the fixing member engaging with the engaging groove of the shaft, whereby the shaft and the inner flange of the holding member have a slight contact therebetween.

Abstract: A stator assembly comprises upper and lower pole plates or silicon steel sheets each having a plurality of radial poles. Each radial pole includes a magnetic pole face extending along a direction parallel to a longitudinal direction. The magnetic pole faces of each upper pole plate, each lower pole plate, or each silicon steel sheet may be of the same or different length. Alternatively, the magnetic pole faces may be overlapped with each other or not overlapped with each other. The overall magnetic pole face formed by the magnetic pole faces may be so arranged to represent a step-like structure or an inclined side.

Abstract: A combination of a rotor and a supporting structure for the rotor comprises an axle, a fixing member securely mounted in the axle tube, a supporting member securely mounted in a lower end of the axle tube, and a rotor having a shaft base and a shaft extending from the shaft base. The shaft includes an engaging groove. The shaft is extended through the fixing member with an end face of a distal end of the shaft rotatably resting on the supporting member and with the fixing member engaging with the engaging groove of the shaft. The shaft further includes an auxiliary supporting section, the auxiliary supporting section and an inner periphery of the axle tube having a minimal gap therebetween.

Abstract: A stator comprises plural stacked silicon steel plates having aligned axle holes. An auxiliary plate is superimposed on the stacked silicon steel plates and comprises an axle hole aligned with the axle holes of the silicon steel plates. Each silicon steel plate comprises even-numbered radial arms each having a magnetic pole face at a distal end thereof. The auxiliary plate comprises auxiliary radial arms, wherein the auxiliary radial arms and the radial arms of the silicon steel plates are alternately disposed. Form on a distal end of each auxiliary radial arm is a magnetic pole face that extends vertically, the magnetic pole face being appropriately spaced from the magnetic pole faces of the radial arms of the silicon steel plates. The magnetic pole faces of the auxiliary radial arms of the auxiliary plate and the magnetic pole faces of the silicon steel plates have different widths or thicknesses.

Abstract: A miniature fan motor assembly comprises a housing base provided with a base plate and a tubular post on the base plate for engaging a cylinder so as to support a rotor along its axis. The base plate combines with a circuit board on which a coil winding and a silicon steel sheet are secured to each other by an adhesive. The rotor is started by a magnetic field generated by a magnet and the coil winding.