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).

  • Magnetic bearing system
    Publication number: 20050140228
    Abstract: A magnetic bearing system for a rotating machine is disclosed. The magnetic bearing system provides a non-contacting radial rigid support for the rotating machine by employing two magnetic assemblies each being formed by stacked annular magnets. The magnetic assemblies are mounted separately on a shaft of the rotating machine and a shaft hole provided on the stator seat of the rotating machine for containing the shaft.
    Type: Application
    Filed: December 23, 2004
    Publication date: June 30, 2005
    Inventors: Ting-Jen Yeh, Kun-Fu Chuang, Wen-Shi Huang
  • Heat-dissipated mechanism for outer-rotor type brushless DC fan motor
    Publication number: 20050116556
    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: Application
    Filed: January 6, 2005
    Publication date: June 2, 2005
    Inventors: Shih-Ming Huang, Wen-Shi Huang
  • Heat-dissipating device and motor structure thereof
    Publication number: 20050110366
    Abstract: A heat-dissipating device and a motor structure. The heat-dissipating device has a outer frame provided with a seat, at least two rotors, a control unit and a stator. The rotors are respectively disposed on the seat. The control unit is disposed on the seat for controlling the rotation of the rotors. The stator for driving the rotors includes a plurality of silicon steel sheets or iron core embedded in the seat and a plurality of coils. Controlling the rotors with a single stator and a single control unit reduce the volume and cost of the heat-dissipating device.
    Type: Application
    Filed: May 13, 2004
    Publication date: May 26, 2005
    Inventors: Shun-Chen Chang, Wen-Shi Huang
  • Magnetizing structure of motor
    Patent number: 6891296
    Abstract: The present invention provides a structure for magnetizing a rotor magnet of a motor, which includes a rotor having a magnet cylinder with a wavy curve surface and a stator having a plurality of silicon steel sheets wound by a plurality of winding coils. The present invention also provides a structure for magnetizing a stator magnet of a motor, which includes a stator having a magnet cylinder with a wavy curve surface and a rotor having a plurality of silicon steel sheets wound by a plurality of winding coils.
    Type: Grant
    Filed: October 10, 2000
    Date of Patent: May 10, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Lin Kuo-Cheng, Tsai Ming-Shi
  • Axial flow fan with multiple segment blades
    Publication number: 20050095131
    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: Application
    Filed: December 1, 2004
    Publication date: May 5, 2005
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Centrifugal fan with stator blades
    Publication number: 20050095125
    Abstract: A centrifugal fan with stator blades. The centrifugal fan includes a first frame, a second frame, a driving device, and a blade structure with a first portion and a second portion. The second frame includes a plurality of stator blades thereon. The first portion is coupled with the driving device, and includes a plurality of first rotor blades thereon. The second portion is combined with the first portion and includes a plurality of second rotor blades thereon. The stator blades are located between the first rotor blades and the second rotor blades respectively.
    Type: Application
    Filed: May 19, 2004
    Publication date: May 5, 2005
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Centrifugal fan and housing thereof
    Publication number: 20050095126
    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: May 19, 2004
    Publication date: May 5, 2005
    Inventors: Shun-Chen Chang, Wen-Shi Huang
  • Centrifugal fan
    Publication number: 20050095132
    Abstract: A centrifugal fan includes a hub and an impeller. The impeller is composed of a plurality of blades mounted around an outer circumference of the hub. The paraxial side of the blade forms a backward leaning structure, while the non-paraxial side thereof forms a forward leaning structure. A chamfer structure also can be formed at a paraxial side of each blade to enlarge the air inlet of the fan. Each blade further includes a protrusion, which is located at a side opposite to the inlet and extends toward a center of the hub, to increase the airflow rate through the fan motor. The centrifugal fan further includes an anti-decompression cap connected to an inlet side of the impeller to prevent an axial flow of the intake air from decompression.
    Type: Application
    Filed: October 14, 2004
    Publication date: May 5, 2005
    Inventors: Yu-Chien Kao, Tsu-Liang Lin, Kuo-Cheng Lin, Wen-Shi Huang
  • Heat-dissipating device and its manufacturing process
    Patent number: 6877958
    Abstract: 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 device and there is an overlapped region formed between every two adjacent blades. A single mold is used to manufacture such a heat-dissipating device so that not only can the manufacturing cost be reduced but it can significantly increase the number and size of blades so as to increase the heat-dissipating efficiency.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: April 12, 2005
    Assignee: Delta Electronics Inc.
    Inventors: Chen-Chang Lin, Kuo-Cheng Lin, Wen-Shi Huang
  • Fan device with increased airflow output
    Patent number: 6869269
    Abstract: A fan device with increased airflow output is provided, which includes: a frame having an air inlet and an air outlet, and formed with an opening penetrating through the frame; and a rotating mechanism received in the opening of the frame and connected to a driving mechanism that drives the rotating mechanism to rotate, the rotating mechanism being composed of a hub and a plurality of blades peripherally mounted to the hub, wherein each of the blades is formed with at least an extending portion, and the extending portions are adapted to expose to the air inlet for increasing contact area between the blades and ambient air. By the above fan device with increased air intake, pressure and quantity of airflow outputted from the fan device can be desirably enhanced, so as to achieve optimal heat dissipation effect for an electronic device mounted with the fan device.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: March 22, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Shun-Chen Chang, Wen-Hao Liu
  • Fan control system
    Publication number: 20050046362
    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: August 24, 2004
    Publication date: March 3, 2005
    Inventors: Wen-Churn Ma, Venson Kuo, Wen-Shi Huang
  • Stator structure and manufacturing method thereof
    Publication number: 20050046287
    Abstract: 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 first plane. The second salients, spaced at intervals, are connected to the second end and located on a second plane. When the first salients project onto the second plane along the axial direction of the cylindrical waist post, each projected first salient is located between two adjacent second salients.
    Type: Application
    Filed: July 13, 2004
    Publication date: March 3, 2005
    Inventors: Shih-Ming Huang, Wen-Shi Huang
  • Motor speed control device
    Publication number: 20050047762
    Abstract: A motor speed control device. The motor speed control device applied to a direct current (DC) fan includes a driving element constituted by a driving IC and Hall IC, a thermal sensor and a control element electrically connected between the driving element and the thermal sensor. The present invention utilizes a thermal sensor and a simple control element to effectively and stably control the variable speed of the fan within different temperature ranges.
    Type: Application
    Filed: February 12, 2004
    Publication date: March 3, 2005
    Inventors: Cheng-Chieh Liu, Yao-Lung Huang, Ming-Shi Tsai, Wen-Shi Huang
  • Fan motor speed control circuit
    Publication number: 20050040778
    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: Application
    Filed: June 4, 2004
    Publication date: February 24, 2005
    Inventors: Yu-liang Lin, Yueh-lung Huang, Tsung-yu Lei, Ju-wen Hsieh, Wen-shi Huang
  • Heat-dissipating module
    Publication number: 20050037660
    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: Application
    Filed: September 24, 2004
    Publication date: February 17, 2005
    Applicant: Delta Electronics Inc.
    Inventors: Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Motor
    Publication number: 20050035670
    Abstract: 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 not contact the stator or the frame. 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 second magnetic structure attracts and positions the shaft therebetween such that the first magnetic structure, the second magnetic structure, and the shaft are coaxially aligned.
    Type: Application
    Filed: June 29, 2004
    Publication date: February 17, 2005
    Inventors: Lee-Long Chen, Shih-Ming Huang, Sean Chang, Wen-Shi Huang
  • Fan assembly and its housing
    Publication number: 20050023914
    Abstract: 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 formed in the gap.
    Type: Application
    Filed: February 18, 2004
    Publication date: February 3, 2005
    Inventors: Yi-Fang Chou, Tsu-Liang Lin, Kuo-Cheng Lin, Wen-Shi Huang
  • Motor having a magnetic bearing
    Patent number: 6849978
    Abstract: A motor having a magnetic bearing. The motor includes a base provided with a bearing seats, a stator fixed to the base, a rotor equipped with a rotation shaft and able to rotate relative to the stator by magnetic forces generated from excitation, a bearing fastened to the bearing seat of the base for accommodating the rotation shaft of the rotor, and a magnetic unit composed of a first, a second and a third magnetic elements. The second magnetic element is located below the first magnetic element. The third magnetic element is located below the second magnetic element. By employing the magnetic force, the second magnetic element is restrained between the first and third magnetic elements, thereby limiting a shift range of the rotation shaft.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: February 1, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: Sung-wei Sun, Ming-shi Tsai, Wen-shi Huang, Kuo-cheng Lin
  • Fan
    Patent number: D506540
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: June 21, 2005
    Assignee: Delta Electronics Inc.
    Inventors: Yung-Yu Chiu, Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang
  • Impeller
    Patent number: D506823
    Type: Grant
    Filed: August 21, 2003
    Date of Patent: June 28, 2005
    Assignee: Delta Electronics Inc.
    Inventors: Yung-Yu Chiu, Shun-Chen Chang, Kuo-Cheng Lin, Wen-Shi Huang