| Patent application number | Description | Published |
|---|
| 20080213104 | Motor - A motor includes a stator, a rotor, a top magnetic structure, and a bottom magnetic structure. The stator is disposed in a frame. The rotor is also disposed in the frame, corresponding to the stator. The rotor includes a shaft extending axially from the rotor. The bottom magnetic structure is at the bottom of the frame. The top magnetic structure is on the top of the frame. The top and bottom magnetic structures are opposite to each other in an axial direction. Magnetic attraction generated between the first magnetic structure and the shaft, and the second magnetic structure and the shaft positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned. | 09-04-2008 |
| 20080258584 | MOTOR AND CONTROL CIRCUIT THEREOF - A control circuit of a motor includes at least two sensor chips and at least two winding sets. The sensor chips are electrically connected to each other, and each of the winding sets has a first winding and a second winding. The first end of the first windings and the first end of the second windings are electrically connected to each other, and the second end of the first windings and the second end of the second windings are electrically connected to the sensor chips correspondingly. In addition, a motor having the control circuit is also disclosed. | 10-23-2008 |
| 20080286088 | FAN SYSTEM AND MOTOR CONTROL CIRCUIT - A control circuit is electrically connected to at least one fan device. The fan device has a motor and generates a sensing signal. The control circuit receives a power-source signal and the sensing signal and includes a power converting unit, a control unit and a switch unit. The power converting unit receives the power-source signal and thus respectively outputs a first power-source signal and a second power-source signal according to the power-source signal. The control unit receives the first power-source signal and the sensing signal and thus generates a control signal according to the sensing signal. The switch unit receives the control signal and generates at least one switch signal according to the control signal. The fan device receives the second power-source signal and the switch signal and drives the motor according to the switch signal. | 11-20-2008 |
| 20090125159 | HEAT DISSIPATING SYSTEM - A heat dissipating system includes a fan set and a monitoring module. The fan set has at least one fan. The monitoring module has at least one sensing unit, a controlling unit and a setting unit. The setting unit sets a plurality of parameter values. The controlling unit controls a rotation speed of the fan according to the parameter values and/or at least one measured value sensed by the sensing unit. | 05-14-2009 |
| 20090269225 | FAN AND MOTOR THEREOF - A fan includes an inner rotor motor, which includes a housing, a rotor assembly and a stator assembly. The rotor assembly includes a rotor, which includes blades and is accommodated in the housing. The stator assembly is disposed in the housing corresponding to the rotor assembly. The stator assembly includes a coil disposed around the rotor. The coil is a flat helix structure formed by a continuous wire, and the flat helix structure forms a cylindrical plane perpendicular to a radius plane of the motor. | 10-29-2009 |
| 20100181950 | FAN AND CONTROLLING DEVICE THEREOF - A fan is electrically connected with an alternating current power source. The fan includes an impeller, a motor and a controlling device. The controlling device includes a commutating unit, a magnetic detecting unit, a first switching unit, a second switching unit, a third switching unit and a controlling unit. The alternating current power source is electrically connected with the first switching unit, the second switching unit and the commutating unit, respectively. The commutating unit is electrically connected with the magnetic detecting unit and the controlling unit, respectively. The controlling unit is electrically connected with the third switching unit and the first switching unit, respectively. The third switching unit is electrically connected with the second switching unit. The first switching unit and the second switching unit are electrically connected with the motor, respectively. A controlling device of the fan is also disclosed. | 07-22-2010 |
| 20110122581 | HEAT EXCHANGE DEVICE AND CLOSED-TYPE ELECTRONIC APPARATUS USING THE SAME - A heat exchange device includes a housing, an internal circulating fan, an external circulating fan and a heat exchange unit. The internal and external circulating fans and the heat exchange unit are disposed in the housing. The internal and external circulating fans are disposed at the same side relative to the heat exchange unit. A closed-type electronic apparatus including the heat exchange device is also disclosed. | 05-26-2011 |
| 20110198061 | HEAT EXCHANGE DEVICE FOR CLOSED ELECTRICAL APPARATUS - A heat exchange unit is disclosed. At least one air opening of the heat exchange unit is formed from a sloped surface, enabling the area of the air opening to exceed the cross-sectional area of heat exchange of the heat exchange unit, and further enhancing heat exchange efficiency. A heat exchange device employing the heat exchange unit and a closed electrical apparatus employing the heat exchange device are also disclosed. | 08-18-2011 |
