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).

  • Liquid-cooled heat dissipation module
    Patent number: 7352577
    Abstract: 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 disposed in the opening of the heat sink, communicated to the pump and having an outer surface, a through hole and a guide passage formed on the outer surface. The pump drives a working fluid in the liquid-cooled heat dissipation module to pass through the through hole, the pump and the guide passage to circularly dissipate heat.
    Type: Grant
    Filed: July 21, 2005
    Date of Patent: April 1, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-Long Chen, Chien-Hsiung Huang, Yu-Hsien Lin, Wen-Shi Huang, Chin-Ming Chen
  • FAN ASSEMBLY AND IMPELLER THEREOF
    Publication number: 20080075598
    Abstract: A fan assembly and impeller thereof. The impeller comprises a hub having an upper surface, an axial sidewall extended along the axis of the impeller, and a corner connected between the upper surface and the axial sidewall; and a plurality of blades directly connected to the upper surface, the corner or the axial sidewall of the hub to define an air-intake space between an inner edge of the blades faced to the axis of the impeller and the upper surface of the hub for allowing the intake airflow to radially flow toward the blades.
    Type: Application
    Filed: November 28, 2007
    Publication date: March 27, 2008
    Inventors: Te-Fu CHEN, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Brushless DC motor drive apparatus
    Patent number: 7348744
    Abstract: 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 shutdown and auto-restart circuit detects blockage of the rotor via the DC voltage comparison circuit and shuts off the power to the drive circuit accordingly.
    Type: Grant
    Filed: December 7, 2005
    Date of Patent: March 25, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Chih-Lun Liao, Lee-Long Chen, Yueh-Lung Huang, Wen-Shi Huang
  • Method for starting single phase BLDCM having asymmetrical air gap
    Patent number: 7345440
    Abstract: A method for starting a motor having a stator, a rotor, a winding and an asymmetrical air gap is accomplished using several steps. The steps include: (a) providing the motor at standstill; (b) exciting the winding for a specific time period with a current impulse having a first amplitude to obtain a first specific position of the rotor with respect to the stator; (c) decreasing the first amplitude down to a second amplitude gradually by a controller to make the rotor to be positioned at a second specific position with respect to the stator after the specific time period, wherein the second amplitude is one of zero ampere and a specific value close to zero ampere, and the rotor is rotating close to the second specific position with an almost zero rotating speed when the second amplitude is reached.
    Type: Grant
    Filed: November 21, 2005
    Date of Patent: March 18, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Weizi Wang, Zhigan Wu, Wanbing Jin, Jianping Ying, Qiong Yuan, Shih-Ming Huang, Wen-Shi Huang
  • Fan assembly and fan frame thereof
    Patent number: 7344358
    Abstract: 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 to the housing.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: March 18, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Lobato Lu, Ke-Nan Wang, Wen-Shi Huang
  • Blower
    Patent number: 7338256
    Abstract: 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 shaped. A flow tunnel is disposed between the impeller and the housing.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: March 4, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-Chien Kuo, Tsu Liang Lin, Ming-Shi Tsai, Wen-Shi Huang
  • Stator structure of motor
    Patent number: 7339301
    Abstract: A stator structure comprising at least one first magnetic conductive plate and at least one second magnetic conductive plate, each magnetic conductive plate having a plurality of radial arms and pole tooth provided on ends of the radial arms, wherein the pole teeth of the first and second magnetic conductive plates have different shapes.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: March 4, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-long Chen, Shih-ming Huang, Wen-shi Huang
  • Fan control system
    Publication number: 20080036403
    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: October 15, 2007
    Publication date: February 14, 2008
    Inventors: Wen-Churn Ma, Venson Kuo, Wen-Shi Huang
  • Heat dissipation fans and housings therefor
    Patent number: 7329091
    Abstract: 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-guiding elements are disposed between the base and the outer frame, having a first curved surface, a second curved surface, and a bottom surface.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: February 12, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Cheng-Wei Yan, Tsu-Liang Lin, Wen-Shi Huang
  • Hot-swap circuit system for fan tray module
    Patent number: 7324316
    Abstract: 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 and the field effect transistor turns off when an input voltage is changed from a certain value to zero.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: January 29, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Hunter Chen, Chun-Lung Chiu, Wen-Shi Huang
  • Motor control method and device thereof
    Patent number: 7323838
    Abstract: 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 period of the phase signal. The duty-cycle signal comprises a rising segment and a falling segment and when the phase signal changes phase, the duty cycle represented by the duty-cycle signal is a first duty cycle, allowing the input power of the motor remain at a minimum. The duty-cycle signal is input to the coil, controlling the coil on and off and, thereby rotating the motor.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: January 29, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Chuan Ma, Yen-Hung Chen, Po-Tsun Kuo, Chun-Lung Chiu, Wen-Shi Huang
  • Centrifugal fan and housing thereof
    Publication number: 20080019825
    Abstract: A centrifugal fan. The centrifugal fan has at least one air inlet and one air outlet, and at least one set of rotor blades. A sidewall extends downward from an inner margin of the air inlet to define an air-gathering chamber in the housing of the centrifugal fan for increasing airflow pressure and heat dissipating efficiency.
    Type: Application
    Filed: August 13, 2007
    Publication date: January 24, 2008
    Inventors: Shun-Chen Chang, Wen-Shi Huang
  • METHOD AND CIRCUIT FOR TESTING MOTOR
    Publication number: 20080018285
    Abstract: A method for testing a motor having a rotor and a winding is provided. The method includes steps of (a) providing a power to rotate the rotor to a predetermined speed, (b) removing the power, (c) measuring a terminal voltage of the winding while a current within the winding is zero, (d) obtaining a back electromotive force in the winding by compensating the terminal voltage with a performance of the rotor, (e) selecting a characteristic of the back electromotive force and (f) determining a magnetization of the motor by comparing the characteristic with a predetermined parameter.
    Type: Application
    Filed: May 30, 2007
    Publication date: January 24, 2008
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Li-Jian Wu, Wan-Bing Jin, Jian-Ping Ying, Shih-Ming Huang, Wen-Shi Huang
  • Fan housing and wire clipping mechanism thereof
    Publication number: 20080014085
    Abstract: A fan housing includes a first frame and a second frame. The first frame includes a clip member protruding toward the second frame, and a limit member connected with the clip member. The limit member has a slot along the outer wall of the first frame so that a wire can pass through the slot. The second frame includes an engaging member corresponding to the clip member and having a recess to be engaged with the clip member. When the first and second frames are combined, the wire will be securely fastened in the slot.
    Type: Application
    Filed: July 13, 2007
    Publication date: January 17, 2008
    Inventors: Chih-Hua Lin, Chao-Wen Lu, Wen-Shi Huang
  • Motor and magnetic bearing assembly thereof
    Patent number: 7315100
    Abstract: 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 magnetic pole. The rotor, coupled to the stator, comprises a hub, a shaft, a third magnetic structure disposed at the hub and encircled one en of the shaft and corresponded to the first magnetic structure, and a fourth magnetic structure disposed at the hub without contacting the second magnetic structure. The blades encircle the rotor. The first and third magnetic structures attract the second and the fourth magnetic structures, respectively.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: January 1, 2008
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-Long Chen, Chien-Hsiung Huang, Shih-Ming Huang, Wen-Shi Huang
  • Heat dissipation fan
    Publication number: 20070286727
    Abstract: A heat dissipation fan includes a housing, a first rotor, a second rotor, a base and a plurality of static blades. The first rotor has a shaft and a plurality of rotor blades. The second rotor is coupled to the first rotor and has a plurality of rotor blades. The base is disposed in the housing for supporting the first and second rotors. The static blades are disposed between the housing and the base, wherein a rear portion of each static blade extends along an axial line of the heat dissipation fan for improving the working efficiency of the second rotor.
    Type: Application
    Filed: February 22, 2007
    Publication date: December 13, 2007
    Inventors: Shun-Chen Chang, Chia-Ming Hsu, Tsung-Yu Lei, Chin-Sheng Liu, Peng-Chu Tao, Chia-Ching Lin, Shih-Wei Huang, Ching-Chuang Mai, Wen-Shi Huang, Hsiou-Chen Chang
  • Method for manufacturing bearing assembly
    Publication number: 20070283563
    Abstract: The invention provides a method for manufacturing bearing assembly. The method comprises: coating a photoresist on an inner wall of a through hole of a bearing; inserting an ultraviolet lamp having a transparent groove pattern thereon into through hole and performing exposure process so as to photosensitize the photoresist corresponding to the groove pattern; removing the ultraviolet lamp and cleaning the photosensitized portion of the photoresist by developer; etching the inner wall not covered with the photoresist by an etchant or forming a deposited layer on the inner wall not covered with the photoresist; removing the photoresist reminding on the inner wall by a stripping agent so as to complete the method for manufacturing a dynamic bearing. The method is also proved to a surface of a shaft to manufacture the dynamic bearing.
    Type: Application
    Filed: August 17, 2007
    Publication date: December 13, 2007
    Inventors: Cheng-Chang Lee, Zong-Ting Yuan, Heng-Chung Chang, Huang-Kun Chen, Tai-Kang Shing, Wen-Shi Huang
  • Heat dissipation module
    Publication number: 20070286720
    Abstract: A heat dissipation module includes a housing, and a fan including an outer frame, a first rotor, a base, a second rotor and a driving device. The first rotor includes a shaft, a first hub and a plurality of first rotor blades disposed around the first hub. The base is disposed in the outer frame. The second rotor includes a plurality of second rotor blades, and is coupled to the shaft of the first rotor and disposed next to the first rotor. The driving device is supported by the base for driving the first rotor and the second rotor simultaneously.
    Type: Application
    Filed: April 6, 2007
    Publication date: December 13, 2007
    Inventors: Shun-Chen Chang, Chia-Ming Hsu, Tsung-Yu Lei, Chin-Sheng Liu, Peng-Chu Tao, Chia-Ching Lin, Shih-Wei Huang, Ching-Chuang Mai, Wen-Shi Huang, Hsiou-Chen Chang
  • Heat dissipating fan
    Publication number: 20070284955
    Abstract: A heat dissipating fan includes a frame, a first rotor having a shaft and a hub, a base disposed in the frame, a second rotor disposed at one side of the first rotor and coupled to the first rotor, and a driving element supported by the base for driving the first and second rotors to rotate. The hubs of the first and second rotors include a plurality of heat dissipating holes formed on the surface thereof. Airflow passes through the plurality of heat dissipating holes to generate a forced convection effect on the driving element.
    Type: Application
    Filed: February 26, 2007
    Publication date: December 13, 2007
    Inventors: Shun-Chen Chang, Chia-Ming Hsu, Tsung-Yu Lei, Chin-Sheng Liu, Peng-Chu Tao, Chia-Ching Lin, Shih-Wei Huang, Ching-Chuang Mai, Wen-Shi Huang, Hsiou-Chen Chang
  • Heat dissipating device
    Publication number: 20070286721
    Abstract: A heat dissipating device includes an outer frame, a first rotor, a base, a second rotor and a driving device. The first rotor comprises a shaft, a first hub and a plurality of first rotor blades disposed around the first hub. The base is disposed in the outer frame. The second rotor comprises a plurality of second rotor blades, coupled to the shaft of the first rotor and disposed next to the first rotor. The driving device is supported by the base for driving the first rotor and the second rotor.
    Type: Application
    Filed: December 27, 2006
    Publication date: December 13, 2007
    Inventors: Shun-Chen Chang, Chia-Ming Hsu, Tsung-Yu Lei, Chin-Sheng Liu, Peng-Chu Tao, Chia-Ching Lin, Shih-Wei Huang, Ching-Chuang Mai, Wen-Shi Huang, Hsiou-Chen Chang