Abstract: A foreign-body-proof or water-proof fan includes an impeller and a motor. The motor includes a rotor, a stator, a housing, at least one bearing and a spacer. The rotor has a shaft. The stator is disposed corresponding to the rotor. The housing supports for the stator and the rotor and has an axial hole, and the shaft passes through the axial hole. One end of the shaft protrudes out of the housing and is connected to the impeller. The bearing for supporting the shaft is disposed in the axial hole and securely disposed in the axial hole. The spacer loops the shaft and urges against the bearing.

Abstract: A motor includes a stator, a first bearing, a second bearing, a first buffer element, a second buffer element and a rotor. The rotor has a shaft passing though the first bearing, the second bearing, the first buffer element and the second buffer element in order. The first buffer element is disposed adjacent to the first bearing for buffering in one direction, and the second buffer element is disposed adjacent to the second bearing for buffering in another direction.

Abstract: A motor includes a motor body and a housing for covering and accommodating the motor body. The housing includes a seat and a cover. The seat has at least one first connecting portion disposed at the circumference of the seat, and the cover has at least one second connecting portion disposed at the circumference of the cover and corresponding to the first connecting portion. The first and second connecting portions are connected by the relative movement of the seat and the cover, so that the seat and the cover can be combined tightly.

Abstract: A dishwasher has multiple wash zones which are each supplied by a wash liquid supply. An interior tub configured to provide an interior wash chamber for washing dishes is divisible into a plurality of wash zones supplied by separate wash liquid supplies. One of the wash zones is supplied by a spray manifold having rotating spray heads. The spray heads are provided with internal vanes which urge the spray heads to rotate and direct wash liquid to outlets in the spray heads.

Abstract: A power factor correction method and the controller thereof, applied to a boost-type converter, are provided. First, the power factor correction method uses the input and output voltages to generate a reference switching signal. Next, a voltage control circuit uses the difference between the output voltage and a voltage command to get a duty phase. Then, the switching control signal is determined by shifting the phase of the reference switching signal according to the duty phase. Finally, a comparator compares the switching control signal with a triangle waveform signal to determine the switching signal. A power factor controller, which utilizes this method, uses only a single voltage control circuit to get the switching signal to regulate the output voltage and shape the current waveform without sensing current and a current control circuit, so that the complexity of the invented control circuit for the power factor correction is reduced dramatically.

Abstract: A fan has an impeller, a motor and a frame. The impeller and the motor are disposed within the frame, and the motor is connected to the impeller and drives the impeller to rotate. The impeller includes a hub and an odd number of blade sets. The blade sets are disposed around the circumference of the hub. Bach blade set has a plurality of the blades, and the blades of each blade set can be the same or not. For example, the blades in each of the blade sets have different tilting angles, heights and/or lengths while the blades are connected with the hub. Or the blades in each of the blade sets have different curvatures, arc lengths, thicknesses, or side-view shapes.

Abstract: A scroll type compressor with an enhanced sealing arrangement includes two sealing rings, mounted one between a first part of a gliding block and a first chamber of a fixed scroll and another one between a second part of the gliding block and a second chamber of the fixed scroll, respectively. The sealing ring has a U-shape cross section characterized in having a center depth smaller than half of a total height of the cross section. By providing such sealing rings, damage in mounting the sealing rings can be reduced to a minimum, possible leakage from the damage can be avoided, the assembly process in producing the compressor can be improved, and the compressor can be successfully merchandized.

Abstract: An impeller includes a hub, a plurality of blades, and an annular structure. The blades are disposed around the hub. The annular structure is connected to the blades. The annular structure includes a plurality of apertures. A balance material is filled in the apertures to achieve rotational balance of the impeller. Furthermore, a fan with the described impeller is provided. The fan and the impeller improve rotational stability, reliability and product life.

Abstract: A motor stator includes a yoke, a plurality of winding portions, a plurality of protrusions, and a plurality of arc extensions. The yoke includes a through hole at the center of the yoke. The winding portions are disposed around the exterior and extend outside of the yoke. The protrusion is disposed at an end of each winding portion. Each arc extension is engaged with each protrusion.

Abstract: A fan and a motor thereof are disclosed. The motor includes a first module, a rotor assembly and a second module. The first module includes a housing and a stator assembly disposed within the housing. The rotor assembly includes a shaft and a magnetic element which mounts the shaft and is disposed corresponding to the stator assembly. The second module includes a base and a driving element disposed on the base and electrically connected with the stator assembly through a conducting structure. When the housing and the base are assembled, a space is obtained for accommodating the rotor assembly therein, and the shaft protrudes from the housing.

Abstract: A magnetic conducting housing of a motor includes a body and at least one first positioning structure. The magnetic conducting housing has a magnetic element disposed around an inner wall thereof. The body has a top surface and a side wall connected with a circumference of the top surface to form an opening. The first positioning structure extends from the side wall of the body and is close to the opening for holding the magnetic element. Also, a motor and a fan with above-mentioned magnetic conducting housing are disclosed.

Abstract: A motor includes a stator and a rotor. The stator has a magnetically conductive element. The rotor has a shaft and a magnetic element. The shaft penetrates through the magnetic element and the magnetically conductive element. The magnetic element is disposed corresponding to the magnetically conductive element. The stator and rotor are disposed within a closed space, and the shaft protrudes from the closed space. A fan for a vehicle is also disclosed.

Abstract: An impeller includes a hub, a plurality of first blades, and a plurality of second blades. The first blades are disposed around the hub. The second blades are disposed between the first blades. The lengths of the second blades are shorter than those of the first blades. The impeller can avoid the airflow reflux and have good airflow efficiency.

Abstract: A rotor structure of a motor includes a shaft, a holding ring, at least one connecting portion and a magnetic element. The holding ring is disposed on and connected with a periphery of the shaft. The connecting portion is disposed at a conjunction of the shaft and the holding ring. The magnetic element is disposed on a periphery of the holding ring.

Abstract: A circuit module includes a printed circuit board, which is vertically mounted on a system circuit board. The support structure includes a first supporting member and a second supporting member. The first supporting member is arranged on a first side of the printed circuit board and includes a first bottom surface lying flat on the system circuit board. The second supporting member is arranged on a second side of the printed circuit board and includes a second bottom surface lying flat on the system circuit board, wherein the second side is opposed to the first side. The first supporting member and the second supporting member cooperatively clamp a lower edge of the printed circuit board therebetween.

Abstract: A housing includes a top portion and a wall portion. The wall portion is connected with the circumference of the top portion. The top portion has a plurality of protruding structures disposed around a central axis of the top portion for increasing the force-bearing area of top portion. The thicknesses of the protruding structures are substantially the same as that of the top portion. The housing can be applied to a fan or a motor, and the housing can serve as a base of the motor, or serve as a hub of an impeller of the fan.

Abstract: A bearing structure, which is cooperated with a shaft, includes a housing, a bearing, an elastic element and a blocking element. The shaft passes through the bearing. The elastic element presses against the bearing to provide a pre-stress to the bearing. The blocking element is apart from the bearing by a predetermined distance.

Abstract: A fan includes an inner-rotor type motor and an impeller. The inner-rotor type motor includes a housing, a stator structure, a rotor structure and a driving device. The stator structure has a magnetically conducting element. The rotor structure includes a shaft and a magnetic element. The shaft passes through the housing. The magnetic element mounts on the shaft and is disposed corresponding to the magnetic conducting element. The driving device is electrically connected with the magnetically conducting element. The stator structure, the rotor structure and the driving device are accommodated in the housing. The impeller is connected to the shaft.

Abstract: A terminal structure is fixed to a circuit board for electrically connecting a wire with the circuit board. The terminal structure includes a fixing part and a connecting part. The fixing part is fixed to the circuit board. The connecting part is connected with the fixing part to be electrically connected with the wire. A connecting method of the terminal structure is also disclosed.

Abstract: A scroll apparatus with an axial gap control function is described. The scroll apparatus is capable of controlling the axial gap between its fixed scroll and orbiting scroll. The scroll apparatus has a frame with a pair of indentations installed in the casing of the scroll apparatus, a pair of flexible elements installed at the lateral side top of the frame and spanning the pair of indentations for defining a suspended flexible segment at the span, a sidewall having a positioning ring with a downward protruding body corresponding to the indentation, in which the protruding body of the positioning ring is fixed to the flexible segment of the flexible element, a fixed scroll suspended at the positioning ring, and an orbiting scroll for orbiting into the fixed scroll.