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.

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 controller includes a power source unit, a drive circuit, and a state control circuit. The drive circuit is coupled to the power source unit, and includes a drive coil and a switching transistor unit. The switching transistor unit is operable in one of a circuit-making state for making an electrical circuit between the drive coil and the power source unit so as to enable the drive coil to drive rotation of a rotor of a brushless direct current motor, and a circuit-breaking state for breaking the electrical circuit between the drive coil and the power source unit. The state control circuit is coupled to the power source unit, and includes a pulse width modulator, a sensing coil, and a control transistor coupled electrically in series. The state control circuit controls operation of the switching transistor unit according to magnetic position of the rotor relative to the sensing coil.

Abstract: A power converter module provides a regulated direct current voltage to a load, and includes a rectifier, a metal thin film capacitor, and a voltage regulating circuit. The rectifier has input rectifier terminals coupled electrically to an external alternating current power source, and output rectifier terminals. The metal thin film capacitor interconnects one of the input rectifier terminals of the rectifier to the external alternating current power source. The voltage regulating circuit provides the regulated direct current voltage from the output rectifier terminals to the load.

Abstract: A separation device of a paper towel includes a housing provided with two roll sets each having at least two rolls that may be driven by a power member to rotate relative to each other at an equal speed, so that a continuous paper towel may pass between the rolls of the two roll sets and may be pulled downward. The paper towel is provided with sensing marks at a predetermined length, so that when the sensing mark of the paper towel passes through a detection member, the detection member may detect passage of the sensing mark of the paper towel, and may send a signal, so that a rotation speed difference is produced between the rolls of the two roll sets, and the paper towel passing between the rolls of the two roll sets may be torn off.

Abstract: A power converter module provides a regulated direct current voltage to a load, and includes a rectifier, a metal thin film capacitor, and a voltage regulating circuit. The rectifier has input rectifier terminals coupled electrically to an external alternating current power source, and output rectifier terminals. The metal thin film capacitor interconnects one of the input rectifier terminals of the rectifier to the external alternating current power source. The voltage regulating circuit provides the regulated direct current voltage from the output rectifier terminals to the load.

Abstract: The present invention is to make a towel material for forming a wet towel, that is made by a drying, compressing or evacuating manner into compact units having a winding bar shape, or block shape. The units are connected by connecting members into a strap, so that the towel material strap may be stored in the chamber of the manufacturing apparatus. After the user emits the using signal, the towel material strap is serially drawn out by a control wheel member, and the connecting member is wound by the winding roller, so that the units may fall into the output member or the article outlet. The units are wet or immersed in the liquid, so that the units may be expanded into a wet towel.

Abstract: The present invention relates to a bearing device including a body formed with an inner groove that does not communicate with the shaft hole of the body. Thus, when the rotation shaft is rotated, the lubricating oil may lubricate the rotation shaft, and may flow back to be stored in the inner groove after the rotation shaft stops rotating, thereby achieving the effect of recycling use. At the same time, the inner groove does not communicate with the inner shaft hole, such that when the rotation shaft is rotated, the lubricating oil contained in the inner groove will not be directly carried out of the body and will not sputter out of the body. Thus, the amount of loss of the lubricating oil may be reduced, thereby increasing the lifetime of the bearing device.

Abstract: A heat-dissipating fan comprises a rotor and a stator. The rotor includes a ring magnetic mounted to an outer periphery thereof. The stator includes a core. A plurality of poles integrally extend from the core of the stator. An induction coil is wound around at least one of the poles and located on an end of the pole. The heat-dissipating fan has only one stator having only one core with even-numbered poles integrally extending from the core. The fan wheel can be smoothly driven while increasing the amount of air output and improving the heat-dissipating efficiency. Further, since the poles are integral with the core, a closed loop of the magnetic field is formed when cooperating with the inductive ring magnet, thereby preventing magnetic field leakage.

Abstract: A skin cleaner includes a lower container, and an upper bowl having a rim defining an opening for receiving the face of users. The container has a chamber for containing a first liquid while the bowl has a cup located in the opening for containing a second liquid. A heater is provided for heating and converting the second liquid into vapor, which is then discharged from the cup into the opening of the bowl. The skin cleaner further includes a nozzle disposed in the bowl, and a pump for pumping the first liquid to the nozzle and spurting the first liquid from the nozzle over the face received in the bowl.

Abstract: A skin cleaner includes a lower container, and an upper bowl having a rim defining an opening for receiving the face of users. The container has a chamber for containing a first liquid while the bowl has a cup located in the opening for containing a second liquid. A heater is provided for heating and converting the second liquid into vapor, which is then discharged from the cup into the opening of the bowl. The skin cleaner further includes a nozzle disposed in the bowl, and a pump for pumping the first liquid to the nozzle and spurting the first liquid from the nozzle over the face received in the bowl.

Abstract: A positioning structure for motor's pole includes a housing provided with a pivot portion having a periphery provided with multiple wall plates and a pair of insertion seats. Each of the insertion seats is formed with an insertion groove for insertion of a circuit board. The housing is provided with multiple combination posts. The pole includes a magnetically conducting material, and an insulating material. The magnetically conducting material is enclosed by the insulating material, and is partially exposed outward from the insulating material. The magnetically conducting material is wound with a conducting wire.

Abstract: A towel material for forming a wet towel is made in a drying, compressing or evacuating manner. The towel material may form a compact unit having a strip shape, block shape, or particle shape. The towel material unit stored in the manufacturing apparatus. After the user emits the using signal, the towel material unit falls according to the signal of the manufacturing amount, and is wet or immersed, so that the towel material unit is expanded into a wet towel.

Abstract: A method and a device are provided for separating a roll of toilet paper which has plural tear lines. This invention is aimed to feed the continuous toilet paper into the device, which has a feeding element and a pulling element both provided for driving the paper. The pulling element can drive the toilet paper at a speed quicker than that of the feeding element, so that the toilet paper is pulled apart along the tear lines.

Abstract: The present invention is to make a towel material for forming a wet towel, that is made by a drying, compressing or evacuating manner into compact units having a winding bar shape, or block shape. The units are connected by connecting members into a strap, so that the towel material strap may be stored in the chamber of the dispensing apparatus. After the user emits the using signal, the towel material strap is serially drawn out by a control wheel member, and the connecting member is wound by the winding roller, so that the units may fall into the output member or the article outlet. The units are wet or immersed in the liquid, so that the units may be expanded into a wet towel.

Abstract: The present invention is to make a towel material for forming a wet towel, that is made by a drying, compressing or evacuating manner. The towel material may form a compact unit having a strip shape, block shape, or particle shape. The towel material unit is stored in the manufacturing apparatus. After the user emits the using signal, the towel material unit falls according to the signal of the manufacturing amount, and is wet or immersed, so that the towel material unit is expanded into a wet towel.

Abstract: A bearing device is provided with an oil storage space. The oil storage space is an oil storage space that is formed in the bearing device, so that the lubricating oil stored in the oil storage space may gradually leak outward through the capillary pores of the bearing device, thereby slowing down the release velocity of the lubricating oil, and thereby increasing the lifetime of the bearing device.

Abstract: A heat dissipation fan structure includes a base plate provided with an air outlet which is provided with a bottom plate. The bottom plate is provided with a drive circuit control member. The base plate is provided with a plurality of poles of an even number. Each pole is wound with a coil. An insulating layer is mounted between the pole and the coil. Poles having the same polarity are connected by the same connecting wire. An impeller is pivoted and rotated on the bottom plate. The impeller has a plurality of blades that may drive air to flow. A magnet ring is mounted on peripheral edges of the blades of the impeller, and may be induced with the poles wound with coils.

Abstract: A circuit board fixing structure of a heatsink fan includes a housing having a pivot portion having a periphery provided with multiple poles. The housing is provided with a pair of positioning seats and a conducting wire receiving socket. The two positioning seats are formed with two insertion grooves. A circuit board is mounted in the insertion grooves of the positioning seats of the housing, and has a sensor and a conducting wire. The conducting wire may pass through the conducting wire receiving socket of the housing.

Abstract: A positioning structure of a bearing and an axle tube, wherein, the positioning hole of the axle tube has a periphery formed with an oil storage space corresponding to the bearing, so that when the bearing is received and positioned in the positioning hole of the axle tube, the friction force between the bearing and the inner wall of the positioning hole can be reduced efficiently. Thus, the shaft hole of the bearing is not easily deformed due to squeeze, thereby preventing the center from deflecting. At the same time, the oil storage space is relatively increased, thereby enhancing the lubricating effect of the bearing. The oil storage space is directly integrally formed in the periphery of the positioning hole during fabrication of the shaft tube. Thus, the fabrication is rapid, thereby decreasing the cost of fabrication.