| Patent Number |
Title Of Patent |
Date Issued |
| D584698 |
Fan |
January 13, 2009 |
|
| D539408 |
Centrifugal fan |
March 27, 2007 |
|
| 7619535 |
Power monitoring apparatus of fan |
November 17, 2009 |
| A power monitoring apparatus of a fan is for receiving an input voltage from external. The power monitoring apparatus includes a starting unit and a voltage detecting unit. The starting unit receives the input voltage and starts the fan according to the input voltage. The voltage det |
| 7618236 |
Fan and fan housing with toothed-type connecting elements |
November 17, 2009 |
| A fan of the present invention includes a fan housing and an impeller disposed in the fan housing. The fan housing includes a plurality of connecting elements at its air outlet. Each connecting element includes a plurality of air-guiding teeth thereon, which can guide the air to flow |
| 7614851 |
Centrifugal fans and impellers thereof |
November 10, 2009 |
| A centrifugal fan is provided. A hub covers a driving device. An impeller surrounds the hub and includes a first blade set and a second blade set. The first blade set surrounds the hub and includes a first combining portion, a second combining portion, and a plurality of first blades. Th |
| 7608955 |
Motor |
October 27, 2009 |
| A motor includes a first housing, a second housing, a rotor and a stator. The second housing is assembled with the first housing to form an accommodating space. The second housing has a flange adjacent to the connection between the first and second housings. The rotor has a shaft ext |
| 7598691 |
Current control device and method |
October 6, 2009 |
| A current control device for a fan motor includes a current sampling module, a signal generating module, a current detecting module and a current controlling module. The current sampling module samples an operating current of the fan motor to generate a sampled current signal. The op |
| 7586742 |
Heat dissipation module |
September 8, 2009 |
| A heat dissipation module includes a first heat dissipation apparatus, a second heat dissipation apparatus, at least one first flapper and at least one second flapper. The first heat dissipation apparatus has a first airflow passage, and the second heat dissipation apparatus has a se |
| 7585154 |
Centrifugal fan and impeller thereof |
September 8, 2009 |
| An impeller applied to a centrifugal fan includes a base plate, a hub and a plurality of first blades. The hub is connected to the base plate and the first blades are disposed on the base plate with respect to the hub as a center. Furthermore, the hub has a plurality of second blades |
| 7585150 |
Composite fan and frame thereof |
September 8, 2009 |
| A composite fan frame includes a first frame and a second frame. The first frame has a first surface formed with at least one first protrusion portion. The second frame has a second surface formed with at least one first recess portion. When the first surface touches the second surface, |
| 7579726 |
Fan, motor and stator structure thereof |
August 25, 2009 |
| A stator structure of a motor includes a first magnetic substrate, a second magnetic substrate and a plurality of coil units. An outer profile of the first magnetic substrate has a plurality of first protruding parts, and an outer profile of the second magnetic substrate has a plural |
| 7573213 |
Motor driving method and device thereof |
August 11, 2009 |
| The invention provides a motor driving device including a converter receiving and converting a non-electrical power source, such as light, heat, mechanical or chemical energy, to a first electrical power, and a selector electrically connected between the converter and a motor, for re |
| 7554229 |
Stator structure of motor |
June 30, 2009 |
| A stator structure of a motor. The stator structure has a base including a main body and a plurality of protrusions extending from the main body. A stator part has a plurality of magnetic-pole portions, wherein each protrusion is positioned in a gap between every two adjacent magneti |
| 7545112 |
Fan motor control method and device thereof |
June 9, 2009 |
| A fan motor control device comprises a clock signal generator and a drive unit. The clock signal generator generates a low-frequency clock signal. A frequency of low-frequency clock signal is less than 23 KHz. The drive unit converts the low-frequency clock signal to a high-frequency dri |
| 7538466 |
Dual fan and dual motor structure thereof |
May 26, 2009 |
| A dual motor structure of a dual fan includes a first stator structure, a first rotor structure, a first bearing, a second stator structure, a second rotor structure and a second bearing. The first stator structure has a first bearing tube. The first rotor structure has a first shaft |
| 7538465 |
Fan assembly and its housing |
May 26, 2009 |
| A fan housing. The fan housing mounted on a frame of a system includes a main body, a first section, a second section and a fixing portion. Both the first and second sections are disposed on the main body. A gap is formed between the first and second sections. The fixing portion is f |
| 7529088 |
Heat dissipation module and flow direction controlling structure thereof |
May 5, 2009 |
| A heat dissipation module includes a first heat dissipation apparatus, a second heat dissipation apparatus, and a flow direction controlling structure. The first heat dissipation apparatus and the second heat dissipation apparatus are symmetrically disposed. The flow direction contro |
| 7525228 |
Three-phase opposite rotating motor and fan |
April 28, 2009 |
| A three-phase opposite rotating motor of a fan comprises a stator having a three-phase coil set without a core, a first rotor and a second rotor. The number of the poles of the first rotor is unequal to the number of the poles of the second rotor. The ratio of the number of solenoids of |
| 7521830 |
Fan motor and oil-leak proof bearing system thereof |
April 21, 2009 |
| The invention relates to an oil-leak proof bearing system, and the system includes a bearing, an oil-leak proof cover and a rotor shaft. The center portion of the oil-leak proof cover defines a through hole, and the inner wall defining the through hole is provided with at least one first |
| 7507068 |
Heat-dissipating mechanism for a motor |
March 24, 2009 |
| A heat-dissipating mechanism for a motor includes a rotor and a stator base. The rotor rotates with respect to the stator base and includes a casing and a hub. The casing has a side portion and a bottom portion, and at least one opening is disposed at the bottom portion. The hub is d |
| 7498705 |
Rotor |
March 3, 2009 |
| A rotor. The rotor includes a case, a reinforcing part, a shaft and a connecting element. The reinforcing part is formed with the case and defines an opening. The shaft extends into the opening. The connecting element connects the case and the shaft, with the reinforcing part dispose |
| 7495401 |
Control systems and switch devices thereof |
February 24, 2009 |
| A control system for a motor. The control system and the motor receive an external power. The control system comprises a driver and a switch device. The driver is electrically connected to the motor. The switch device is electrically connected between the external power and the drive |
| 7479724 |
Stator structure |
January 20, 2009 |
| A stator structure includes at least one stator part having a single rolled steel sheet to serve as a waist post with a gap. A first stator part includes a first engaging portion. A second stator part includes a second engaging portion corresponding to the first engaging portion. The |
| 7459876 |
Motors and control methods thereof |
December 2, 2008 |
| Motors comprising stators and rotors having a plurality of north poles and south poles and methods of controlling the same. A first sensor and a second sensor are provided. The first and second sensors are disposed on the stator in a manner that the first and second sensors never sim |
| 7450379 |
Heat dissipation device and fan module thereof |
November 11, 2008 |
| A heat dissipation device and fan module. The fan module is fixed to a fan tray, which has a track with a first engaging portion. A securing member is disposed on a shield, comprising a second engaging portion. The second engaging portion enters the first engaging portion, fixing the fan |
| 7449849 |
Motor control circuit and method thereof |
November 11, 2008 |
| A motor control circuit and method thereof serving a coil for controlling the motor. The motor control circuit comprises a separated signal generating circuit generating a separated signal and a comparator comparing a first phase signal from a Hall element or a second phase signal fr |
| 7447423 |
Fan speed control device and method detailed description of the invention |
November 4, 2008 |
| A fan speed control device includes a controller, a switch and a voltage regulator. The controller detects a rotation speed signal of the fan to generate a first driving signal when the rotation speed signal is relatively higher than a predetermined rotation speed signal and generate |
| 7446492 |
Fan system and stopping method for motor thereof |
November 4, 2008 |
| A fan system and a stopping method for the fan system are provided. The fan system is electrically connected to a power supply and receives the power therefrom. The fan system includes an energy storage apparatus, a motor and a start-up device. The energy storage apparatus receives and |
| 7443069 |
Stator structures |
October 28, 2008 |
| Stator structures are provided. A stator structure includes at least a magnetic conductive layer and at least a first auxiliary magnetic polar layer. The magnetic conductive layer comprises a plurality of first salient poles. The first auxiliary magnetic polar layer is disposed above |
| 7439647 |
Brushless DC motor and stator thereof |
October 21, 2008 |
| A brushless DC motor and a stator thereof. The stator comprises an upper magnetic pole piece and a lower magnetic pole piece. The upper magnetic pole piece comprises a plurality of upper protruding portions extending toward the lower magnetic pole piece, and the lower magnetic pole piece |
| 7439642 |
Brushless DC motor and magnetic compensation method thereof |
October 21, 2008 |
| A magnetic compensation method for a brushless DC motor. The method of magnetic compensation for the motor provides the magnetic element disposed adjacent to the magnetic sensor to compensate the magnetic sensor for an unnecessary magnetic interference, so that the magnetic sensor pr |
| 7438525 |
Fan housing |
October 21, 2008 |
| A fan housing and a fan have stationary blades for guiding airflow. Each stationary blade has at least one airflow-guiding element extending therefrom along the circumference of the fan. The side wall of the airflow-guiding element changes the direction of the airflow so that the air |
| 7429162 |
Fan |
September 30, 2008 |
| A fan includes a frame, a motor base, an impeller, an airflow guiding component, and at least one outwardly expanded part. The motor base is disposed in the frame, and the impeller is disposed on the motor base. The outwardly expanded part, connected with the frame, is disposed at an |
| 7423358 |
Stator structure and manufacturing method thereof |
September 9, 2008 |
| A main body of a motor stator. The main body includes a cylindrical waist post, a plurality of first salients and a plurality of second salients. The waist post has a first end and a second end. The first salients, spaced at intervals, are connected to the first end and located on a |
| 7417856 |
Heat dissipation module and flow direction controlling structure thereof |
August 26, 2008 |
| A heat dissipation module is disclosed. A first heat dissipation apparatus and a second heat dissipation apparatus are symmetrically disposed. A flow direction controlling structure has a rotatable element disposed between the first and second heat dissipation apparatuses and formed an |
| 7417345 |
Fan assembly with magnetic thrust bearings |
August 26, 2008 |
| A motor. The 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 comprises a shaft, extended axially from the rotor. The shaft does |
| 7416387 |
Fan and fan frame thereof |
August 26, 2008 |
| A fan includes a fan frame and an impeller. The fan frame has a housing, a base and at least one supporting element. The inner wall of the housing has at least one guiding portion in the form of a curved cavity for increasing an airflow intake of the fan, and the base is disposed within |
| 7416386 |
Heat dissipation apparatus |
August 26, 2008 |
| A heat dissipation apparatus. A fan frame includes an air inlet, an air outlet, a passage, and a curved expansion portion. The air inlet is opposite the air outlet. The passage is between the air inlet and the air outlet, guiding airflow from the air inlet to the air outlet. The curved |
| 7401638 |
Heat-dissipating device and its manufacturing process |
July 22, 2008 |
| A heat-dissipating device and its manufacturing process are provided for significantly increasing the number and size of blades so as to enhance the heat-dissipating performance. The heat-dissipating device has a plurality of blades arranged around the hub of the heat-dissipating dev |
| 7387496 |
Fan assembly and impeller thereof |
June 17, 2008 |
| A fan assembly and impeller thereof. The fan assembly includes a plurality of blades and a hub. The hub includes an upper surface and a center point. The blades have bottom portions arranged in a circle on the upper surface with respect to the center point. |
| 7380955 |
Fan assembly |
June 3, 2008 |
| A fan assembly. The fan assembly is applicable to a light source that produces heat. The fan assembly comprises a frame and an impeller. The frame comprises an opening, and a periphery of the opening has a curved surface. The impeller is disposed in the frame. When light emitted from |
| 7352577 |
Liquid-cooled heat dissipation module |
April 1, 2008 |
| A liquid-cooled heat dissipation module for circularly dissipating heat from a heat source. The liquid-cooled heat dissipation module includes a fan having a base; a pump disposed on the base; a heat sink coupled to the fan and having an opening to receive the pump; and a guide part |
| 7348744 |
Brushless DC motor drive apparatus |
March 25, 2008 |
| A brushless DC motor drive apparatus for driving a rotor includes a drive circuit rotating the rotor, a current shutdown and auto-restart circuit coupled to the drive circuit, and a DC voltage comparison circuit coupled to the current shutdown and auto-restart circuit. The current shutdo |
| 7344358 |
Fan assembly and fan frame thereof |
March 18, 2008 |
| A fan assembly and fan frame thereof. A housing includes an opening. A motor base is disposed in the housing. A plurality of ribs are disposed in the opening and between the housing and the motor base for supporting the motor base. Each rib has a varied cross section from the motor base |
| 7338256 |
Blower |
March 4, 2008 |
| A blower comprises a housing and an impeller. The housing comprises a side outlet and an inlet comprising a predetermined profile, and the impeller is disposed in the housing. The predetermined profile is quadratrical, elliptical, polygonal, non-coaxial circle, or irregularly closed shap |
| 7329091 |
Heat dissipation fans and housings therefor |
February 12, 2008 |
| A heat dissipation fan and a housing thereof. The heat dissipation fan includes a housing and a plurality of blades. The housing includes an outer frame, a base, and a plurality of air-guiding elements. The base is disposed in the outer frame, supporting the blades thereon. The air-g |
| 7324316 |
Hot-swap circuit system for fan tray module |
January 29, 2008 |
| A hot-swap circuit system for fan tray module includes a soft-start circuit module in charge of the power start of the fan tray module hot-plugged into an application system. The soft-start circuit module includes a capacitor and a field effect transistor. The capacitor discharges an |
| 7323838 |
Motor control method and device thereof |
January 29, 2008 |
| A motor control method and device. The motor control device includes a programmable integrated circuit (IC) receiving a phase signal, the phase of which is consistent with the rotation phase of a coil of the motor. The programmable IC generates a duty-cycle signal in accordance with the |
| 7315100 |
Motor and magnetic bearing assembly thereof |
January 1, 2008 |
| A motor comprising a stator, a rotor, and a plurality of blades. The stator comprises a stator base with an opening, a first magnetic structure disposed at a bottom of the opening, a magnetic pole disposed on the stator base, and a second magnetic structure disposed at a top of the m |
| 7294980 |
Fan control system |
November 13, 2007 |
| A fan control system. The system includes a plurality of fans, each having a control device. One of the fans is designated as a master fan and others are served as slave fans according to a specific designation method, wherein the control device of the master fan actively monitors an |
