Abstract: A grounding structure for a motor stator includes a silicon steel sheet unit, and upper and lower insulating frames clamping the silicon steel sheet unit therebetween. The grounding structure further includes a conductive member and a circuit board. The conductive member is clamped between the silicon steel sheet unit and the lower insulating frame, and protruding from a lower end of the lower insulating frame. The circuit board is disposed at a lower side of the lower insulating frame, and includes a negative contact that is connected to a lower edge of the conductive member.

Abstract: A fan includes a frame member, a fan body, a surrounding plate and a housing unit. The frame member surrounds an axis and defines an accommodating space in which the fan body is disposed. The fan body is rotatable about the axis. The surrounding plate surrounds the frame member and is formed with at least one plate hole extending in a transverse direction transverse to an axial direction of the axis therethrough. The housing unit surrounds the surrounding plate and has a plurality of housing holes extending in the axial direction of the axis therethrough. The housing unit and the surrounding plate cooperatively define a surrounding space therebetween that is surrounded by the housing holes.

Abstract: A fan casing for mounting of a fan includes a frame including four corner segments and four side segments that are arranged alternately with the corner segments, a seat disposed in the frame, and four support members extending radially and outwardly from the seat and connected respectively to the corner segments. Each support member includes a base connected to the seat and having a width reducing in a direction away from the seat, and a rib connected between the base and the corresponding corner segment. The bases are interconnected to surround the seat. Any two adjacent bases are interconnected to form an arc surface facing the corresponding side segment and adapted to absorb shock.

Abstract: A fan blade device includes a plurality of main fan blades and extension fan blades. Each main fan blade includes a main fan blade body arranged obliquely, a plurality of first protrusions, and at least one engaging groove. Each extension fan blade includes an extension fan blade body arranged obliquely and having a top surface that is contiguously flush with a top surface of the main fan blade body of a respective main fan blade, a plurality of second protrusions respectively abutting against the first protrusions of the respective main fan blade, and at least one engaging piece engaging the at least one engaging groove of the respective main fan blade.

Abstract: A fan includes a rotating unit and a housing unit. The rotating unit includes a base and a fan body that is rotatably mounted to the base. The housing unit includes an outer ring that surrounds and is connected to the base, a plurality of connecting members that are mounted to an outer peripheral surface of the outer ring and that are spaced apart from each other, and a base member that surrounds the rotating unit and the outer ring and that is connected to the connecting members. The base member has a plurality of receiving holes, and each of the connecting members is made of a shock-absorbing material, and is fixed in a respective one of the receiving holes.

Abstract: A motor includes a base, a rotor unit and a driving unit. The base has opposite first and second surfaces. The rotor unit includes a magnet unit disposed on a rotatable magnet carrier to face the first surface of the base. The driving unit includes induction coils disposed on a circuit board, a sensor unit that is disposed on the circuit board and spaced apart from the induction coils and that defines a first reference line with the rotation axis, and a rotor positioning component disposed on the second surface of the base, extending along a second reference line, and capable of magnet attraction with the magnet unit for positioning the rotor unit relative to the sensor unit when the rotor unit stops rotating.

Abstract: A motor includes a base, a rotor unit and a driving unit. The base has opposite first and second surfaces. The rotor unit includes a magnet unit disposed on a rotatable magnet carrier to face the first surface of the base. The driving unit includes a circuit board disposed between the base and the magnet unit, induction coils disposed on the circuit board and operatively associated with the magnet unit, a sensor unit disposed on the circuit board and spaced apart from the induction coils, and a rotor positioning component disposed on the second surface of the base and capable of magnet attraction with the magnet unit for positioning the rotor unit relative to the sensor unit when the rotor unit stops rotating.

Abstract: A motor includes a base, a rotor unit and a driving unit. The base has opposite first and second surfaces. The rotor unit includes a magnet unit disposed on a rotatable magnet carrier to face the first surface of the base. The driving unit includes induction coils disposed on a circuit board, a sensor unit that is disposed on the circuit board and spaced apart from the induction coils and that defines a first reference line with the rotation axis, and a rotor positioning component disposed on the second surface of the base, extending along a second reference line, and capable of magnet attraction with the magnet unit for positioning the rotor unit relative to the sensor unit when the rotor unit stops rotating.

Abstract: A motor includes a base, a rotor unit and a driving unit. The base has opposite first and second surfaces. The rotor unit includes a magnet unit disposed on a rotatable magnet carrier to face the first surface of the base. The driving unit includes a circuit board disposed between the base and the magnet unit, induction coils disposed on the circuit board and operatively associated with the magnet unit, a sensor unit disposed on the circuit board and spaced apart from the induction coils, and a rotor positioning component disposed on the second surface of the base and capable of magnet attraction with the magnet unit for positioning the rotor unit relative to the sensor unit when the rotor unit stops rotating.

Abstract: A motor stator includes an insulating frame having a plurality of projecting rods, an induction unit, and a plurality of conductive members. The induction unit includes an induction circuit board, a plurality of induction coils embedded within the induction circuit board, and a plurality of coil windings wound respectively on the projecting rods. The conductive members extend through the insulating frame and the induction circuit board for establishing an electrical connection between each of the induction coils and a corresponding one of the coil windings. The turn numbers of the coil windings are not limited by the area and thickness of the induction circuit board, and can be increased. Alternatively, the coil windings may be positioned to increase the magnetic pole slot number when energized. As such, a driving force of the motor stator can be increased.

Abstract: A motor stator includes a stator unit and at least one auxiliary unit. The stator unit includes a circuit substrate, and a plurality of spaced-apart induction coils embedded within the circuit substrate. The auxiliary unit includes an auxiliary coil attached to and disposed outwardly of the circuit substrate.

Abstract: In a method of fan speed control, a flow value corresponding to airflow amount through a fan during operation of the fan is detected with a fan controller. The flow value and a preset value are subsequently compared, and when the flow value is less than the preset value, a pulse-width-modulation (PWM) signal is outputted to increase rotation speed of the fan.

Abstract: A method of making a porous bushing for an impeller shaft of a heat dissipation fan, includes: compacting a porous body-forming material in a mold to form a green body that has a shape conforming to the porous bushing; and sintering the green body to form the porous bushing. A heat dissipating fan incorporating the porous bushing is also disclosed.

Abstract: A motor stator includes a stator unit and an auxiliary induction unit. The stator unit includes a circuit substrate, and a plurality of induction coils embedded within the circuit substrate. The auxiliary induction unit includes an insulating member, a magnetic conductor, and at least one coil winding assembly. The coil winding assembly includes a conductive rod and an auxiliary coil. The rod has an insert rod section extending through the magnetic conductor, the insulating member, and the circuit substrate, and a wound rod section permitting the auxiliary coil to be wound thereon, such that the auxiliary coil is disposed outwardly of the magnetic conductor. During assembly, the induction coil assembly is mounted to the magnetic conductor, and the insulating member is superposed on the circuit substrate. Subsequently, the rod is inserted through the insulating member and into the circuit substrate.

Abstract: A motor stator includes a stator unit and at least one auxiliary unit. The stator unit includes a circuit substrate, and a plurality of spaced-apart induction coils embedded within the circuit substrate. The auxiliary unit includes an auxiliary coil attached to and disposed outwardly of the circuit substrate.

Abstract: A motor stator includes an insulating frame having a plurality of projecting rods, an induction unit, and a plurality of conductive members. The induction unit includes an induction circuit board, a plurality of induction coils embedded within the induction circuit board, and a plurality of coil windings wound respectively on the projecting rods. The conductive members extend through the insulating frame and the induction circuit board for establishing an electrical connection between each of the induction coils and a corresponding one of the coil windings. The turn numbers of the coil windings are not limited by the area and thickness of the induction circuit board, and can be increased. Alternatively, the coil windings may be positioned to increase the magnetic pole slot number when energized. As such, a driving force of the motor stator can be increased.

Abstract: A rotary shaft assembly includes: a rotary shaft having an insertion end portion that is disposed co-axially in a hollow base, and rotatable relative to the base; a bearing sleeved on the insertion end portion of the rotary shaft, and partitioning an inner receiving space in the base into a lower oil-storage portion and an upper oil-flow portion; and a stirring member mounted on one end of the insertion end portion and co-rotatable with the rotary shaft. When the rotary shaft rotates, the stirring member stirs lubricating oil in the lower oil-storage portion to urge flow of the lubricating oil from the lower oil-storage portion through a first oil passage unit in one of the base and the bearing, through the upper oil-flow portion and through a second oil passage unit between the bearing and the insertion end portion of the rotary shaft, and back into the lower oil-storage portion.

Abstract: A beverage heating method includes the steps of: preheating a thermal storage heater unit in a predetermined temperature; dispensing a cool beverage from a beverage container via a dispensing conduit; heating the cool beverage by passing it through the thermal storage heater unit; and supplying the hot beverage from the thermal storage heater unit. A beverage heater apparatus includes a beverage container, a thermal storage heater unit, a liquid-dispensing valve, a control unit and a dispensing conduit. The beverage container connects with a heat-exchanging channel provided in the thermal storage heater unit. The thermal storage heater unit stores heat energy in a predetermined temperature by preheating. The control unit has a sensor to detect the temperature of the thermal storage heater unit. The liquid-dispensing valve is switched on or off to control the dispensing conduit which supplies cool beverage from the beverage container to the thermal storage heater unit.

Abstract: A cooling fan includes: a casing having a surrounding wall that defines an accommodating space; a circuit board disposed in the accommodating space and including a substrate and a control circuit, the substrate having a center portion that has a peripheral edge, and a plurality of spaced apart connecting beams that extend from the peripheral edge of the center portion and that are connected directly and securely to the surrounding wall; a hollow shaft secured directly to and protruding from the circuit board into the accommodating space; a stator mounted securely on the center portion of the substrate of the circuit board and coupled to the control circuit; a fan blade unit disposed in the accommodating space and including an annular hub journalled rotatably to the hollow shaft; and a rotor mounted on the hub.

Abstract: A cooling fan includes: a casing having a base wall and a surrounding wall that extends transversely from the base wall, and that has an inner wall surface and a top opening; a stator mounted on the inner wall surface of the surrounding wall; a shaft protruding from the base wall; a fan blade unit including an annular hub that is journalled rotatably to the shaft, a supporting ring that surrounds the hub, and a plurality of blades that extend between and that are connected to the hub and the supporting ring; a rotor mounted on the supporting ring; and a cover in the form of a circuit board mounted on the top end face of the surrounding wall for covering the top opening in the casing and including a substrate formed with a central opening.