Patents by Inventor Wen Shi

Wen Shi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Fan control system
    Publication number: 20060261761
    Abstract: 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 and controls the operating state of the slave fans according to the control device of the slave fans to amend the operating state of all fans.
    Type: Application
    Filed: July 26, 2006
    Publication date: November 23, 2006
    Inventors: Wen-Churn Ma, Venson Kuo, Wen-Shi Huang
  • Fan assembly for vehicle heat-dissipating fan and forming method thereof
    Publication number: 20060257255
    Abstract: A fan assembly comprises a frame and a securing element. The frame has a first end portion, a second end portion and a middle portion. The foam securing element comprises a positioning hole having a first hole having a shape corresponding to the first end portion, a second hole having a shape corresponding to the second end portion, and a third hole having a cross section larger than that of the second hole. When the second end portion is inserted into the first hole, the second end portion and the middle portion pass through the first hole and the first end portion urges against the periphery of the second hole to receive the second end portion in the third hole. The second end portion of the frame is stopped by a periphery of the positioning hole after rotating at a predetermined angle so that the frame is positioned.
    Type: Application
    Filed: December 27, 2005
    Publication date: November 16, 2006
    Inventors: Yung-Yu Chiu, Wen-Shi Huang
  • Heat dissipation apparatus and fan frame thereof
    Publication number: 20060257254
    Abstract: A heat dissipation apparatus. A fan frame accommodates an impeller therein and includes an air inlet, an air outlet, and a passage for guiding airflow from the air inlet to the air outlet. An inner peripheral wall of the passage radially and outwardly extends a smooth curved expansion portion at the air outlet. The curved expansion portion includes a recess in which the airflow forms an airflow layer, stopping subsequent airflow from directly contacting the inner peripheral wall of the passage.
    Type: Application
    Filed: September 21, 2005
    Publication date: November 16, 2006
    Inventors: Shih-Hua Ho, Hao-Ming Chen, Tsung-Yu Lei, Wen-Shi Huang
  • Fan motor and stator thereof
    Publication number: 20060255668
    Abstract: A fan comprises a stator base, a rotor, at least one blade, an upper magnetic pole plate, a lower magnetic pole plate, a coil and a sidewall. The stator base comprises a stator base having a seat and a tubular portion protruding from the seat and having an axial hole. The seat and the tubular portion are integrally formed as a single piece to be a magnetic conductor. The rotor enclosing the tubular portion comprises a shaft disposed in the axial hole. The blades are circumferentially disposed at a periphery of the rotor. The upper magnetic pole plate is disposed near a top of the tubular portion and the lower magnetic pole plate is disposed near a bottom of the tubular portion. The coil is disposed between the upper and lower magnetic pole plates. The sidewall is circumferentially disposed at a periphery of the stator base.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 16, 2006
    Inventors: Lee-Lung Chen, Shih-Wei Huang, Shih-Ming Huang, Wen-Shi Huang
  • Fan motor and oil-leak proof bearing system thereof
    Publication number: 20060255674
    Abstract: 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 guiding groove thereon extended obliquely downward from the upper edge of the inner side face to force oil dispersed by the rotor shaft to flow back into the bearing system. The bottom surface of the oil-leak proof cover, contacting the bearing, is provided with second guiding grooves extending radially approximately from the center thereof. The capillarity of the second guiding grooves guides the oil dispersed by the rotor shaft to flow radially. The design of the first and second guiding grooves prevents the bearing system from leakage of lubricating oil, and provides a closed oil loop for operation.
    Type: Application
    Filed: November 22, 2005
    Publication date: November 16, 2006
    Inventors: Lee-Long Chen, Hsiu-Wei Wu, Wen-Shi Huang
  • Fan, motor and stator structure thereof
    Publication number: 20060255681
    Abstract: 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 plurality of second protruding parts. The first magnetic substrate and the second magnetic substrate are correspondingly disposed. The coil units disposed between the first magnetic substrate and the second magnetic substrate respectively have a coil wound around a central axis of the coil unit, and at least one magnetically conductive element disposed within the coil.
    Type: Application
    Filed: February 28, 2006
    Publication date: November 16, 2006
    Inventors: Lee-Long Chen, Shih-Wei Huang, Shih-Ming Huang, Wen-Shi Huang
  • Base assembly and wire-fixing element thereof
    Publication number: 20060256524
    Abstract: A wire-fixing element is coupled into an opening of a base. A wire passes through the opening, and one part of the wire is disposed in the base. The wire-fixing element includes a first end and a second end. A pair of arms is disposed at the first end and the arms are buckled into the opening. A supporting member is disposed at the second end and is used for supporting the wire.
    Type: Application
    Filed: April 13, 2006
    Publication date: November 16, 2006
    Inventors: Huan Chen, Ying-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Fan control system
    Patent number: 7135826
    Abstract: 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 and controls the operating state of the slave fans according to the control device of the slave fans to amend the operating state of all fans.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: November 14, 2006
    Assignee: Delta Electronics Inc.
    Inventors: Wen-Churn Ma, Venson Kuo, Wen-Shi Huang
  • Fan system
    Publication number: 20060245948
    Abstract: A fan system includes a first airflow generator providing a main airflow, a duct having a first feeding port to guide the main airflow, and a first fan. The first fan includes a base, a rotor connected to the base by a shaft, and a plurality of blades connected to the rotor. Each blade includes a passive part corresponding to the first feeding port and an active part. The main airflow drives the passive part rotating about the shaft to synchronously rotate the active part, dissipating heat from a heat source, increasing flow rate of airflow and decreasing pressure. The amount and location of the fans can be flexibly configured.
    Type: Application
    Filed: March 29, 2006
    Publication date: November 2, 2006
    Inventors: Shun-Chen Chang, Wei-Chun Hsu, Wen-Shi Huang
  • Fan module and fan duct thereof
    Publication number: 20060237453
    Abstract: A fan duct, which is adapted to be used with a fan, includes a body, a guiding part and at least one supporting element. The body has an accommodating space, and the guiding part is disposed therein. The guiding part has a first end surface and a second end surface, and the area of the first end surface is larger than that of the second end surface. The supporting element is disposed in the accommodating space for connecting the guiding part and the body.
    Type: Application
    Filed: March 9, 2006
    Publication date: October 26, 2006
    Inventors: Po-Hao Yu, Wen-Shi Huang
  • Heat dissipation module with twin centrifugal fans
    Patent number: 7126818
    Abstract: A heat dissipation module with twin centrifugal fans is described. The heat dissipation module is utilized in an electrical equipment and especially for a computer server system. The heat dissipation module has a honeycomb panel, a first fan, an air duct, a second fan and a plurality of sliding rails. The honeycomb panel connects with an outlet of the first fan and an out of the air duct in the rear side thereof. The first fan sucks hot air from the underside thereof and exhausts the hot air to the outside through the honeycomb panel. The second fan sucks hot air from the underside thereof and exhausts the hot air to the outside through the honeycomb by way of the air duct. The sliding rails configure along the two sides of the first fan and the second fan.
    Type: Grant
    Filed: December 24, 2003
    Date of Patent: October 24, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Cheng-Yi Lu, Te-Tsai Chuang, Kuo-Cheng Lin, Wen-Shi Huang
  • Heat-dissipating mechanism for a motor
    Publication number: 20060233643
    Abstract: 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 disposed on the casing, for preventing an external particle from entering the rotor. The hub includes a plurality of separation ribs and when the hub is disposed on the casing, a heat-dissipating passage is formed between every two adjacent separation ribs and the side portion of the casing.
    Type: Application
    Filed: December 21, 2005
    Publication date: October 19, 2006
    Inventors: Yu-Chin Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Fan module and control device thereof
    Publication number: 20060232231
    Abstract: Fan module and control device thereof. The fan module comprises a plurality of fans and the control device. The control device comprises a temperature sensing circuit, and a driving circuit. The temperature sensing circuit detects an ambient temperature of the fans and generates a sensing signal accordingly. The driving circuit is coupled between the fans and temperature sensing circuit, and comprises a fully powered operating mode and a power-saving operating mode, wherein the driving circuit selects different operating modes in accordance with the sensing signal, and generates a fan driving signal controlling the speed of the fans.
    Type: Application
    Filed: March 29, 2006
    Publication date: October 19, 2006
    Inventors: Chien Chen, Chun-Lung Chiu, Wen-Chuan Ma, Wen-Shi Huang
  • Fan blade
    Patent number: 7118345
    Abstract: An impeller is applied to a centrifugal fan and includes fan blades and a hub. Each fan blade includes a first portion and a second portion. The first portion is located relatively close to the hub and the first portion is coupled to the second portion. The first portion has a windward side and a leeward side, and the windward side is parallel to the leeward side. The second portion is located relatively far away from the hub. The second portion has a windward side and a leeward side, and the windward side and the leeward side are two curved surfaces with different specific curvatures.
    Type: Grant
    Filed: June 17, 2004
    Date of Patent: October 10, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Hsiu-Wei Wu, Heng-Yi Chen, Chin-Fu Lee, Wen-Tsao Lee, Wen-Shi Huang, Kuo-Chen Huang, Chieh-Lung Ho
  • Starting method for hall-less single-phase BLDCM
    Publication number: 20060220602
    Abstract: The methods for starting a Hall-less single-phase BLDCM having an asymmetrical air gap are proposed. The provided methods are employed to input a specific amount of current impulse and stop the current impulse at a specific time such that the rotor of the single-phase BLDCM having an asymmetrical air gap can be realized to rotate in the pre-determined direction through one of the cogging torque and the rotor inertia after that specific time so as to accomplish the normal starting of a motor without the Hall-effect sensor.
    Type: Application
    Filed: November 21, 2005
    Publication date: October 5, 2006
    Applicant: Delta Electronics Inc.
    Inventors: Weizi Wang, Zhigan Wu, Wanbing Jin, Jianping Ying, Lijian Wu, Shih-Ming Huang, Wen-Shi Huang
  • Axial fan
    Publication number: 20060222536
    Abstract: An axial fan comprises a base, a rotor mounted on the base by a shaft, and a plurality of blades mounted on the rotor. The blade comprises a passive part corresponding to a feeder and an active part, so that a main airflow from the feeder drives the passive part rotating around the shaft to synchronously rotate the active part, to increase flow rate of airflow, to decrease the pressure and to dissipate heat generated from a heat source.
    Type: Application
    Filed: March 22, 2006
    Publication date: October 5, 2006
    Inventors: Shun-Chen Chang, Wen-Shi Huang
  • Method and circuit for controlling sensorless single-phase BLDCM
    Publication number: 20060214611
    Abstract: The method and circuit for controlling a sensorless single-phase BLDCM having a stator with a winding are proposed. The provided controlling circuit includes a power supply circuit, an inverter coupled to the winding and the power supply circuit, a BEMF detecting circuit coupled to the winding and the inverter and measuring a BEMF of the winding, and a controller coupled to the power supply circuit, the inverter and the BEMF detecting circuit and analyzing a status of the BEMF to control the BLDCM accordingly. The provided method is based on the motor winding time-sharing theory, and the controller controls the inverter to make the winding used as a driving element with loading current when the absolute value of the BEMF is relatively large and as a sensing element when the absolute value of the BEMF is relatively small.
    Type: Application
    Filed: January 10, 2006
    Publication date: September 28, 2006
    Applicant: Delta Electronics Inc.
    Inventors: Weizi Wang, Zhigan Wu, Wanbing Jin, Jianping Ying, Shih-Ming Huang, Wen-Shi Huang
  • Coupling structure for tandem motor
    Patent number: 7112905
    Abstract: A coupling structure for a tandem motor includes two bearing sleeves formed with grooves thereon, a connector and elastic fasteners. The connector has a first end and an opposed second end, and each of the first end and second end is formed with at least one groove. A first elastic fastener is fit into the groove of the connector at the first end and received in the groove formed on one of the two bearing sleeve, and a second elastic fastener is fit into the groove of the connector at the second end and received in the grooves formed on the other bearing sleeve.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: September 26, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Shun-chen Chang, Kuo-cheng Lin, Wen-shi Huang
  • Motor rotor and manufacturing method thereof
    Patent number: 7112906
    Abstract: A motor rotor. The motor rotor adapted to be used in a fan includes a hub, a metal plate and a magnet. The metal plate has a first end and a second end. The metal plate is disposed in the hub. The magnet is disposed in the metal plate. A method for manufacturing a motor rotor mentioned includes providing a metal plate having a first end and a second end; connecting the first and second ends to shape the metal plate as a ring; placing the metal plate in a hub; and placing a magnet in the metal plate.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: September 26, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Yi-Fang Chou, Tsu-Liang Lin, Kuo-Cheng Lin, Wen-Shi Huang
  • Rotor
    Publication number: 20060208590
    Abstract: 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 disposed inside.
    Type: Application
    Filed: June 24, 2005
    Publication date: September 21, 2006
    Inventors: Shih-Kai Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang