Abstract: A motor with a plurality of stator modules and a driving method of the motor are provided. The motor includes a plurality of stator modules, a control unit, and a rotor. The plurality of stator modules is detachably assembled into a motor stator. Each of the plurality of stator modules includes a driving circuit. Each driving circuit is electrically connected to a plurality of coils of an associated one of the plurality of stator modules. The control unit is coupled to the driving circuits. The control unit designates one of the plurality of stator modules as a starting unit and designates remaining stator modules as relay units. The rotor includes at least one magnetic member corresponding to the plurality of coils of the plurality of stator modules. The starting unit drives the rotor to rotate. The relay units drive the rotor according to a phase change of the starting unit.

Abstract: A motor includes a plurality of stator modules, a plurality of circuit boards, a rotor, and a sensing module coupled to the circuit boards. The stator modules are detachably assembled into a stator assembly. Each stator module includes pole posts and coils of different phases wound around the pole posts. Each circuit board is electrically connected to the coils of an associated stator module. Each circuit board independently switches the associated stator module between the different phases. A power source supplies power to the coils via the circuit boards. The rotor includes at least one magnetic member which has magnetic poles corresponding to the coils of the stator modules. The sensing module detects a magnetic field change of the at least one magnetic member responsive to a movement of the rotor, determines a rotational position of the rotor, and informs each circuit board about the rotational position of the rotor.

Abstract: A lamp includes a lighting module providing illumination, a control unit, and a detecting unit. The control unit is connected or not connected to the lighting module. The detecting unit is coupled to the control unit. The detecting unit detects operational statuses of the lighting module and sends a detection result to the control unit. The control unit controls the lighting module or an alarm unit to enter an alarm mode based on the detection result. A user can immediately know the operational statuses by the alarm unit and take necessary actions to assure normal operation of the lamp.

Abstract: A heat dissipating module includes a housing having a bottom wall and a peripheral wall interconnected to a periphery of the bottom wall. The peripheral wall defines a compartment and includes an air inlet in communication with the compartment and an air outlet in communication with the compartment. A stator is received in the compartment of the housing. An impeller is coupled to the stator. A lid can be mounted to the air inlet side of the housing. A plurality of rows of fins is formed on at least one heat conducting section of at least one of the peripheral wall, the bottom wall, and the lid and is located in the compartment.

Abstract: A lamp includes a lighting module providing illumination, a control unit, and a detecting unit. The control unit is connected or not connected to the lighting module. The detecting unit is coupled to the control unit. The detecting unit detects operational statuses of the lighting module and sends a detection result to the control unit. The control unit controls the lighting module or an alarm unit to enter an alarm mode based on the detection result. A user can immediately know the operational statuses by the alarm unit and take necessary actions to assure normal operation of the lamp.

Abstract: A driving circuit board assembly for a motor includes a plurality of driving circuit boards having a plurality of faces for mounting a plurality of electronic elements thereon. The driving circuit boards are stacked in an axial direction of a motor. Two of the driving circuit boards adjacent to each other are spaced by a conductive connecting member that is in electrical connection with the two driving circuits.

Abstract: A driving circuit board assembly for a motor includes a plurality of driving circuit boards having a plurality of faces for mounting a plurality of electronic elements thereon. The driving circuit boards are stacked in an axial direction of a motor. Two of the driving circuit boards adjacent to each other are spaced by a conductive connecting member that is in electrical connection with the two driving circuits.

Abstract: The invention relates to a shaft assembly for a motor. The shaft assembly comprises: a shaft tube, a bearing, a shaft and at least two engaged rings. The shaft has an end and a slot. At least two engaged rings are disposed in the slot of the shaft, and comprise a first engaged ring and a second engaged ring. The first engaged ring is a metal material and the second engaged ring is a non-metal material. The material strength of the first engaged ring is larger than that of the second engaged ring. The first engaged ring can be utilized to support and position the shaft, and the second engaged ring can be utilized to cushion the shaft. Therefore, the problems of motor noise, rotor shift or even separating from the bearing can be resolved simultaneously so as to increase the stability of motor.

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 method for making a stator of a brushless direct current motor, includes the steps of: winding a coil set to predetermined turns, thereby forming a ring body having a central hole, and performing an insulation process; mounting at least two pole plates on two end faces of the coil set respectively, the pole face and the magnetically conducting plates of each pole plate encompassing the inner and outer periphery of the coil set respectively, and a wiring head of the coil set being drawn outside of the pole plate; and mounting a combination member on the magnetically conducting rings (or plates) of each pole plate, thereby forming a stator. The pole faces of each pole plate may be induced with the permanent magnet of the rotor.

Abstract: A DC brushless motor structure comprises a cylinder-like base having a through-hole or a chamber. The through-hole acts as an axle hole for rotatably receiving a shaft of a rotor. Alternatively, the shaft of the rotor is rotatably received in the chamber. An axle hole is defined in an end of the base. Another axle hole is defined in a lid attached to an end of the base. The shaft of the rotor is rotatably received in the axle holes. At least two sets of windings are mounted to the base. Also mounted to the base is an IC control member electrically connected to the windings. A magnetic force is generated by a magnetic field that is created as a result of energizing the windings to thereby repulse the permanent magnet of the rotor having a north pole and a south pole, thereby driving the rotor to turn.

Abstract: A winding method comprises winding a single conducting wire around a predetermined number of pegs in sequence to thereby form a stator coil assembly having even coils and two ends. The winding direction of each coil is opposite to a coil adjacent thereto. The stator coil assembly having even coils is mounted to a casing of a D.C. motor with the coils located corresponding to a permanent magnet of a rotor. The rotor having the permanent magnet is driven to turn by magnetic forces created as a result of energizing the coils.

Abstract: An easy-to-start structure for a D.C. brushless motor comprises a base including a through-hole. Plural windings and an IC control member are mounted to the base. At least one magnetically attractive positioning member is mounted to the base and located between two windings that are adjacent to each other. A rotor comprises a shaft rotatably held by a support section in the through-hole and a permanent ring magnet mounted to the shaft, the permanent ring magnet having north and south poles, each of the south pole and the north pole having a strong magnetic area. The positioning member attracts and thus retains one of the strong magnetic areas of the permanent ring magnet in a position proximal to the positioning member when the rotor stops. Thus, the rotor rests in a pre-determined position not located in a dead corner for restarting.

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 winding method comprises winding a single conducting wire around a predetermined number of pegs in sequence to thereby form a stator coil assembly having even coils and two ends. The winding direction of each coil is opposite to a coil adjacent thereto. The stator coil assembly having even coils is mounted to a casing of a D.C. motor with the coils located corresponding to a permanent magnet of a rotor. The rotor having the permanent magnet is driven to turn by magnetic forces created as a result of energizing the coils.

Abstract: A stator includes a bobbin, plural pole plates, and an axle tube. Half of the plural pole plates are mounted on top of the bobbin and the other half of the plural pole plates are mounted to a bottom of the bobbin. The axle tube is extended through the pole plates and the bobbin to form a stator having four or eight poles. Each of the pole plates has a single pole end and single pole face extending from the pole end.

Abstract: A fan structure having horizontal convection is disclosed herein mainly comprising a casing and a centrifugal flow fan wheel. The casing includes an air inlet, an air outlet, and a horizontal channel directly connected therebetween. The centrifugal flow fan wheel is mounted in the horizontal channel and selectively aligned or misaligned with a center of the casing.

Abstract: A casing for a heat-dissipating fan defines a space having an air inlet and an air outlet. A bottom plate is provided in the air outlet. The bottom plate rotatably supports a fan wheel having a hub and a plurality of blades extending outward from the hub. An annular wall is formed on the bottom plate and has an outer wall face that tapers gradually toward the bottom plate to form a conic shape.

Abstract: A fan structure having horizontal convention includes a casing and a cross-flow type fan wheel. The casing includes an air inlet, an air outlet, and a horizontal channel directly connected therebetween. The cross-flow type fan wheel is mounted in the horizontal channel and selectively aligned or misaligned with a center of the casing.

Abstract: A fan having balancing blade sets is disclosed herein comprising a central hub, a shaft and a plurality of blade sets. The blade sets are radially extended from an outer circumference of the central hub and each blade set is uniformly formed within an appropriate angular length to ensure stable rotation. Each blade set is comprised of various blade designs to enhance blowing efficiency.