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).

  • Heat-dissipating device
    Patent number: 7607886
    Abstract: A heat-dissipating device includes a housing having at least one opening, and a rotor disposed in the housing and having a base, a hub, a first set of blades disposed around the hub, and a second set of blades disposed on the base for increasing air volume and stabilizing a blast pressure of airflow passing through the heat-dissipating device.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: October 27, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Wei-Chun Hsu, Shun-Chen Chang, Wen-Shi Huang, Hsiou-Chen Chang
  • Current control device and method
    Patent number: 7598691
    Abstract: 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 operating current is controlled according to a driving signal. The signal generating module generates a threshold current signal. The current detecting module receives the sampled current signal and the threshold current signal and generates a motor protecting signal according to the sampled current signal and the threshold current signal. The current controlling module receives the motor protecting signal and stops generating or decreases the driving signal according to the motor protecting signal.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: October 6, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Po-Tsun Kuo, Wen-Chuan Ma, Ming-Shi Tsai, Wen-Shi Huang
  • Heat dissipation module
    Patent number: 7586742
    Abstract: 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 second airflow passage. The first flappers and the second flappers are separately disposed within the first airflow passage and the second airflow passage. The first flappers and the second flappers are moved to an open position due to force generated by air flowing through the first airflow passage and the second airflow passage, and are moved to a closed position after the force is removed.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: September 8, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Yung-Yu Chiu, Te-Tsai Chuang, Kuo-Cheng Lin, Wen-Shi Huang
  • Centrifugal fan and impeller thereof
    Patent number: 7585154
    Abstract: 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 disposed around its outer wall to enhance its performance. A centrifugal fan including the impeller is also disclosed.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: September 8, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Chung-Kai Lan, Huan-Chi Chen, Te-Tsai Chung, Wen-Shi Huang
  • Composite fan and frame thereof
    Patent number: 7585150
    Abstract: 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, the first protrusion portion is inserted into the first recess portion along a predetermined sliding direction such that the first frame and the second frame are combined. Also, a composite fan having the composite fan frame is disclosed.
    Type: Grant
    Filed: March 9, 2006
    Date of Patent: September 8, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Shuo-Shiu Hsu, Shun-Chen Chang, Wen-Shi Huang, Li-Chen Lin
  • Fan, motor and stator structure thereof
    Patent number: 7579726
    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: Grant
    Filed: February 28, 2006
    Date of Patent: August 25, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-Long Chen, Shih-Wei Huang, Shih-Ming Huang, Wen-Shi Huang
  • Motor driving method and device thereof
    Patent number: 7573213
    Abstract: 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 receiving the first electrical power and a second electrical power from a power source, such as an electrical power generator, and outputting the first or second electrical power according to a rotation speed of the motor.
    Type: Grant
    Filed: July 5, 2006
    Date of Patent: August 11, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Chun-Lung Chiu, Ming-Shi Tsai, Wen-Shi Huang
  • SIMPLIFIED MAXIMUM POWER POINT CONTROL UTILIZING THE PV ARRAY VOLTAGE AT THE MAXIMUM POWER POINT
    Publication number: 20090189574
    Abstract: A converter system adapted to be connected between a photovoltaic power source and a load comprises a converter circuit, a control circuit, and a PWM generator circuit. The converter circuit is operatively connected to transfer energy from the photovoltaic power source to the load. The control circuit generates a raw control signal based on at least a voltage generated by the photovoltaic power source. The PWM generator circuit is operatively connected to the converter circuit and generates a PWM switch signal based on the raw control signal. The converter circuit transfers energy from the photovoltaic power source to the load based on the PWM switch signal.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: ALPHA TECHNOLOGIES, INC.
    Inventors: THANH LE, SIMON TSZ SUI YAN, WEN SHI
  • Motor
    Patent number: 7554236
    Abstract: A motor includes a stator, a first bearing, a second bearing, a first buffer element, a second buffer element and a rotor. The rotor has a shaft passing though the first bearing, the second bearing, the first buffer element and the second buffer element in order. The first buffer element is disposed adjacent to the first bearing for buffering in one direction, and the second buffer element is disposed adjacent to the second bearing for buffering in another direction.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: June 30, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-Chih Lin, Hung-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Stator structure of motor
    Patent number: 7554229
    Abstract: 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 magnetic-pole portions when the stator part is disposed on the base, and a coil wound around the stator part. The outer circumference of the main body of the base includes a plurality of circular arcs with different radii, so as to provide a function of attaining bias when the motor is driven to start and preventing reduced rotational efficiency of the motor.
    Type: Grant
    Filed: January 17, 2006
    Date of Patent: June 30, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-Long Chen, Chung-Yuan Tsang, Shih-Ming Huang, Wen-Shi Huang
  • Fan motor control method and device thereof
    Patent number: 7545112
    Abstract: 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 drive signal and outputs the high-frequency drive signal to drive the fan motor. A frequency of the high-frequency drive signal is higher than 23 KHz.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: June 9, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Chia-Feng Wu, Yueh-Lung Huang, Ming-Shi Tsai, Wen-Shi Huang
  • Fan assembly and its housing
    Patent number: 7538465
    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: Grant
    Filed: February 18, 2004
    Date of Patent: May 26, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Yi-Fang Chou, Tsu-Liang Lin, Kuo-Cheng Lin, Wen-Shi Huang
  • Dual fan and dual motor structure thereof
    Patent number: 7538466
    Abstract: 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 inserted into the first bearing tube. The first bearing is telescope onto the first shaft, and is mounted in the first bearing tube. The second stator structure has a second bearing tube. The second rotor structure has a second shaft inserted into the second bearing tube. The second bearing is telescope onto the second shaft, and is mounted in the second bearing tube. The first shaft is positioned corresponding to the second shaft to generate a magnetic interaction therebetween.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: May 26, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Shun-Chen Chang, Po-Hao Yu, Wen-Shi Huang
  • Heat dissipation module and flow direction controlling structure thereof
    Patent number: 7529088
    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: Grant
    Filed: October 11, 2005
    Date of Patent: May 5, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Yung-Yu Chiu, Wen-Shi Huang
  • Three-phase opposite rotating motor and fan
    Patent number: 7525228
    Abstract: 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 the three-phase coil set and the number of the first poles of the first rotor is 3:4, and the ratio of the number of solenoids of the three-phase coil set and the number of the second poles of the second rotor is 3:2, to ensure the motor works normally in an opposite rotating operation.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: April 28, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Kun-Fu Chuang, Shun-Chen Chang, Shih-Ming Huang, Wen-Shi Huang
  • Fan motor and oil-leak proof bearing system thereof
    Patent number: 7521830
    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: Grant
    Filed: November 22, 2005
    Date of Patent: April 21, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Lee-Long Chen, Hsiu-Wei Wu, Wen-Shi Huang
  • MOTOR WINDING BOBBIN AND TERMINAL STRUCTURE THEREOF
    Publication number: 20090079288
    Abstract: A motor winding bobbin and terminal structure there are disclosed. The terminal structure includes a fixing portion and at least one positioning portion. The fixing portion is disposed at one end of the terminal structure and has at least one fixing pattern. The fixing portion is connected with a connecting end of the motor winding structure. The positioning portion is disposed adjacent to the fixing portion and urged against the motor winding structure for positioning the fixing portion while it is connected with the connecting end.
    Type: Application
    Filed: April 25, 2008
    Publication date: March 26, 2009
    Inventors: Wen-Shi Huang, Chin-Chu Hsu, Chun-Hua Yang, Chia-Ying Hsu
  • Heat-dissipating mechanism for a motor
    Patent number: 7507068
    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: Grant
    Filed: December 21, 2005
    Date of Patent: March 24, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Yu-Chih Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Rotor
    Patent number: 7498705
    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: Grant
    Filed: June 24, 2005
    Date of Patent: March 3, 2009
    Assignee: Delta Electronics, Inc.
    Inventors: Shih-Kai Lin, Huan-Chi Chen, Te-Tsai Chuang, Wen-Shi Huang
  • Heat-dissipating device
    Patent number: 7497659
    Abstract: A heat-dissipating device includes a housing having an air inlet and an air outlet, and a rotor disposed in the housing and having a first set of blades, wherein the housing has a sidewall extending inward from the air inlet to define an air-gathering chamber in the housing, and a plurality of air-guiding members disposed along the sidewall for increasing and stabilizing a blast pressure of airflow passing through the heat-dissipating device.
    Type: Grant
    Filed: June 13, 2005
    Date of Patent: March 3, 2009
    Assignee: Delta Electronics Inc.
    Inventors: Wei-Chun Hsu, Shun-Chen Chang, Wen-Shi Huang, Hsiou-Chen Chang