Patents by Inventor Wen-shi Huang

Wen-shi Huang 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).

  • Publication number: 20060115359
    Abstract: A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.
    Type: Application
    Filed: January 17, 2006
    Publication date: June 1, 2006
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Li-Kuang Tan, Tsung-Yu Lei, Wen-Ha Liu
  • Patent number: 7052236
    Abstract: A heat-dissipating device and a housing thereof. The heat-dissipating device includes an impeller and a housing. The impeller includes a hub and a plurality of rotor blades disposed around the hub. The housing includes an outer frame, an air-guiding part, and a plurality of stator blades. The air-guiding part is formed on at least one side of the outer frame. The stator blades are disposed in the outer frame corresponding to the air-guiding part. The stator blades guide the airflow through the blades, and greatly increase the static pressure of the airflow discharged from the heat-dissipating device.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: May 30, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20060099092
    Abstract: A hot swap fan includes a fan and a puller structure. The puller structure covers a side surface of the fan. The puller structure includes a base, a holder, and a fixing structure. A first end of the base is pivoted to the fan. The holder and the fixing structure are on a second end of the base.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 11, 2006
    Inventors: Ja-Jeng Lu, Peng-Chu Tao, Te-Tsai Chuang, Wen-Shi Huang
  • Patent number: 7038408
    Abstract: A fan motor speed control circuit includes a driving circuit, a voltage division circuit, and a speed modulator. The voltage division circuit has a first transistor and a plurality of resistors and is connected between a voltage source and the driving circuit. The speed modulator has a second transistor and a plurality of parallel resistors and is connected between the voltage division circuit and the driving circuit. The current of the fan motor speed control circuit flows through a first path under a first input voltage generated from the voltage source and through a second path under a second input voltage larger than the first one; the parallel resistors are in the second path such that the current value passing through the driving circuit varies according to the resulting resistance value of the parallel resistors.
    Type: Grant
    Filed: June 4, 2004
    Date of Patent: May 2, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-liang Lin, Yueh-lung Huang, Tsung-yu Lei, Ju-wen Hsieh, Wen-shi Huang
  • Publication number: 20060087264
    Abstract: 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 from a phase signal generating circuit with the separated signal. Thus, a motor speed control signal is generated to control the motor. The noise is reduced during controlling the motor.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 27, 2006
    Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Wen-Shi Huang
  • Patent number: 7033206
    Abstract: The heat-dissipating module includes at least one heat-dissipating device and a terminal mounted and fixed on one side of the heat-dissipating device and electrically connected with the heat-dissipating device. As the heat-dissipating module is inserted into a frame of the system, the terminal will be received by a receptacle inside the system such that the heat-dissipating module can be electrically connected to the system. The heat-dissipating module can be easily dissembled and replaced in a system without turning off the system and can provide the best heat-dissipating efficiency in a limited space of the system without being affected by the inside height or thickness of the system.
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: April 25, 2006
    Assignee: Delta Electronics Inc.
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20060081367
    Abstract: 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 controlling structure has several rotatable elements disposed between the first heat dissipation apparatus and the second heat dissipation apparatus. Each of the rotatable elements has a fixed end and a correspondingly movable end for guiding airflow. The rotatable elements can be sheet-shaped, wing-shaped, arc-shaped or nonlinear in cross section. The thickness of the rotatable elements varies or decreases from the fixed end to the movable end. The rotatable elements overlap an adjacent rotatable element so as to selectively seal the heat dissipation apparatuses.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 20, 2006
    Inventors: Yung-Yu Chiu, Wen-Shi Huang
  • Publication number: 20060081366
    Abstract: 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 isolation wall thereof, so that the first and second heat dissipation apparatuses respectively have a tunnel. Each of the rotatable elements has a fixed end and a correspondingly movable end for guiding air flow. When outlet pressures of the first and second heat dissipation apparatuses are different, the movable end deflects to the first heat dissipation apparatus or the second heat dissipation apparatus to change outlet areas thereof. The heat dissipation module and the flow direction controlling structure control air flow and prevent backflow, so as to maintain overall outlet area and improve heat dissipation effect of the module.
    Type: Application
    Filed: October 11, 2005
    Publication date: April 20, 2006
    Inventors: Yung-Yu Chiu, Kuo-Cheng Lin, Wen-Shi Huang
  • Patent number: 7025569
    Abstract: An axial flow fan with a plurality of segment blades is described. The axial flow fan has a base, a hub and a plurality of blade units. The hub is mounted on, or pivots on, the base and supports the blade units. Each of the blade units is connected to a periphery of the hub and extends radially outward from the base has a plurality of segment blades. A segment space between the segment blades reforms a boundary layer of fluid passing over the segment blades and reduces the thickness of the boundary layer on the blade surfaces. As a result, the separation between the blade surfaces and fluid is avoided to maintain a laminar flow of the fluid adjacent to the segment blades.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: April 11, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20060073783
    Abstract: A flow direction control mechanism is provided, which includes at least a rotatable means provided in a passage of an electronic system or apparatus. The rotatable means moves to an open position by means of a force generated from fluids flowing through the passage and returns to a close position in the absence of the force. Further, a restrictor is disposed adjacent to the rotatable means for restricting movement of the rotatable means between the open position and the close position.
    Type: Application
    Filed: November 15, 2005
    Publication date: April 6, 2006
    Inventors: I-Hsuan Tsai, Chao-Wu Wen, Wen-Shi Huang, Te-Tsai Chuang
  • Patent number: 7015606
    Abstract: An outer-rotor type brushless fan motor is provided, wherein the outer edge of a stator of the outer-rotor type brushless fan motor is surrounded in the cup-shaped outer periphery of a rotor case of a rotor thereof, and the rotor is rotated with respect to the stator. The outer-rotor type brushless fan motor is characterized in that at least one projection and a corresponding opening thereof are formed on a surface of the rotor case, so that the projection and the corresponding opening thereof are rotated together with the rotation of the rotor, thereby heat generated by the stator is dissipated.
    Type: Grant
    Filed: January 6, 2005
    Date of Patent: March 21, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Shih-Ming Huang, Wen-Shi Huang
  • Publication number: 20060056822
    Abstract: A brushless direct current motor. The brushless direct current motor comprises a rotor, a stator, and a driver. The rotor comprises magnetic poles. The stator is enclosed by or enclosing the rotor. The stator comprises salient poles and at least one permanent magnetic element. The salient poles correspond to the magnetic poles, and the permanent magnetic element is disposed on one of the salient poles to facilitate the rotation of the rotor. The driver is coupled to the stator and produces a primary magnetic field on the salient poles. The rotor is rotated by a secondary salient pole induced by the permanent magnetic element and the primary magnetic field alternately.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 16, 2006
    Inventors: Lee-Long Chen, Shih-Ming Huang, Wen-Shi Huang
  • Publication number: 20060056823
    Abstract: A fan speed control circuit includes a pulse width modulation (PWM) signal generating circuit, a driving circuit and a phase compensation unit. The PWM signal generating circuit generates a PWM control signal with a sequence of alternating on-time and off-time, and the driving circuit outputs a driving signal according to the PWM control signal to a fan motor. The phase compensation unit is connected to the fan motor for delaying or advancing the PWM control signal by a phase angle to synchronize the acting period of the back electromotive force formed by the magnetic flux variation with the off-time of the PWM control signal. The present invention further provides a bi-power motor driving system including a motor rotating by receiving a first power from a first power generator, and a driving circuit for driving the motor according to a second power from a second power generator.
    Type: Application
    Filed: November 10, 2005
    Publication date: March 16, 2006
    Inventors: Chia-Feng Wu, Yueh-Lung Huang, Ming-Shi Tsai, Wen-Shi Huang
  • Publication number: 20060051221
    Abstract: A heat-dissipation structure for a motor. The heat-dissipation structure comprises a shaft, a seat and a rotator. The rotator coupled to the seat by the shaft comprises a housing and a cover. The housing comprises an inner side connected to the shaft and a bottom comprising at least one through hole. The cover is connected to an exterior of the bottom of the housing and a distance is formed between the cover and the housing, so that the cover prevents objects from entering the through hole.
    Type: Application
    Filed: February 16, 2005
    Publication date: March 9, 2006
    Inventors: Hung-Chi Chen, Ying-Chi Chen, Te-Tsai Chuang, Kuo-Cheng Lin, Wen-Shi Huang
  • Fan
    Publication number: 20060045738
    Abstract: 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 airflow inlet or an airflow outlet, for increasing areas of intake airflow or discharge airflow. One end of the airflow guiding component is connected with the motor base, and the other end is connected with an inner surface of the frame, instead of being connected with the outwardly expanded part, to prevent the fan from forming blocks on the frame during molding process.
    Type: Application
    Filed: May 4, 2005
    Publication date: March 2, 2006
    Inventors: Chin-Hong Lee, Shun-Chen Chang, Wen-Shi Huang
  • Publication number: 20060045774
    Abstract: A fan with a fan frame and an impeller. The fan frame includes a housing and a motor base. The housing includes a passage. The passage forms an air outlet and an air inlet on both ends of the housing. The motor base is disposed in the housing. The impeller is disposed on the motor base. When the motor base is at the air outlet or the air inlet, the bottom of the motor base locates on a plane different from that of the air outlet or the air inlet. The motor base is raised into the housing, increasing the area of air flow intake or discharge. Additionally, during the operation of the fan, noise, caused by vibrations generated by rotation of the impeller and transferred to an exterior system via the motor base, can be reduced.
    Type: Application
    Filed: October 27, 2005
    Publication date: March 2, 2006
    Inventors: Lobato Lu, Ke-Nan Wang, Wen-Shi Huang
  • Publication number: 20060045736
    Abstract: A heat-dissipating fan with an upward air-guiding member is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of blades disposed around the hub, a base disposed inside the housing for supporting the impeller thereon, and an air-guiding member disposed between the base and the housing, wherein the air-guiding member has at least one inclined edge on the windward side or its opposite side relative to the horizontal line perpendicular to the axis of the heat-dissipating fan.
    Type: Application
    Filed: December 2, 2004
    Publication date: March 2, 2006
    Inventors: Chin-Hung Lee, Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang, Hsiou-Chen Chang
  • Publication number: 20060043813
    Abstract: Stator structures are provided. A stator structure includes at least a magnetic conductive layer and at least an auxiliary magnetic polar layer. The magnetic conductive layer comprises a plurality of first poles. The auxiliary magnetic polar layer is disposed above the magnetic conductive layer, below the magnetic conductive layer, or between two magnetic conductive layers. The auxiliary magnetic polar layer comprises at least a second pole and a third pole. The total number of the second and the third poles is equal to that of the first poles. The second pole comprises permanent magnetic material.
    Type: Application
    Filed: August 26, 2005
    Publication date: March 2, 2006
    Inventors: Lee-Long Chen, Shih-Ming Huang, Wen-Shi Huang
  • Publication number: 20060042894
    Abstract: A heat-dissipating fan with a plurality of upward rotor blades is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of rotor blades disposed around the hub, and a base disposed inside the housing for supporting the impeller thereon. The rotor blades have at least one inclined edge with a first inclined angle relative to the horizontal line perpendicular to the axis of the heat-dissipating fan, respectively.
    Type: Application
    Filed: December 3, 2004
    Publication date: March 2, 2006
    Inventors: Chin-Hung Lee, Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang, Hsiou-Chen Chang
  • Publication number: 20060045777
    Abstract: Electronic devices and fans thereof are provided. An electronic device comprises a fan cavity and separately disposed heat sources. A fan is disposed in the fan cavity with a frame shaped according to the profile of the fan cavity. The frame also includes an extended portion formed according to the relative position of the fan cavity and separated heat sources, optimizing the heat dissipation.
    Type: Application
    Filed: August 31, 2005
    Publication date: March 2, 2006
    Inventors: Yu-Chien Kao, Yi-Fang Chou, Tsu-Liang Lin, Wen-Shi Huang