Patents by Inventor Tsung-Yu Lei

Tsung-Yu Lei 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: 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
  • 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
  • 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
  • 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
  • Publication number: 20070172350
    Abstract: A fan includes an impeller and a motor. The impeller includes a hub and a plurality of blades. The hub has a top portion, a connection portion, and at least one airflow-guiding portion. The top portion is connected to the connection portion. The blades are disposed around the connection portion. The motor is disposed corresponding to the impeller and used to drive the impeller to rotate. The airflow-guiding portion is disposed between two adjacent blades.
    Type: Application
    Filed: January 19, 2007
    Publication date: July 26, 2007
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Shihhua Ho, Shihying Huang, Tsung-Yu Lei, Chung-Kai Lan, Huan-Chi Chen, Wen-Shi Huang
  • Publication number: 20070122278
    Abstract: A heat dissipation apparatus. A fan frame includes an air inlet, an air outlet, a passage, and a curved expansion portion. The air inlet is opposite the air outlet. The passage is between the air inlet and the air outlet, guiding airflow from the air inlet to the air outlet. The curved expansion portion is radially and outwardly extended from an inner peripheral wall of the passage at the air inlet or air outlet. An impeller is disposed in the fan frame and includes a plurality of blades. Each blade is disposed in the passage and includes an extension end extending to the curved expansion portion.
    Type: Application
    Filed: January 29, 2007
    Publication date: May 31, 2007
    Inventors: Shih-Hua Ho, Hao-Ming Chen, Tsung-Yu Lei, Wen-Shi Huang
  • Patent number: 7220101
    Abstract: A centrifugal fan, comprising a frame and a first guide portion. The frame comprises a bottom portion and a curved wall connected thereto. The curved wall comprises an airflow inlet. The first guide portion disposed along the curved wall at the bottom portion comprises a beginning area, a middle area, and an ending area. The middle area connects the beginning and the ending areas, and the beginning area extends from the airflow inlet. The beginning area has a width less than that of the ending area, and the beginning area has a height greater than that of the ending area.
    Type: Grant
    Filed: July 13, 2004
    Date of Patent: May 22, 2007
    Assignee: Delta Electronics, Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20070092373
    Abstract: A centrifugal fan, comprising a frame and a first guide portion. The frame comprises a bottom portion and a curved wall connected thereto. The curved wall comprises an airflow inlet. The first guide portion disposed along the curved wall at the bottom portion comprises a beginning area, a middle area, and an ending area. The middle area connects the beginning and the ending areas, and the beginning area extends from the airflow inlet. The beginning area has a width less than that of the ending area, and the beginning area has a height greater than that of the ending area.
    Type: Application
    Filed: December 11, 2006
    Publication date: April 26, 2007
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Publication number: 20070001523
    Abstract: The invention provides a magnetic-positioning motor having a magnetic element or magnet disposed at the interior center of a rotor, so that attractive force between the magnetic element and a metallic stator can maintain a rotor at a predetermined position during fan rotation. Additionally, a magnetic element or magnet can be placed on a stator, so that attractive force between the magnetic element and a metallic rotor can maintain a rotor at a predetermined position during fan rotation to reduce vibration, flotation and friction between the shaft and bearing under high speed operation.
    Type: Application
    Filed: October 12, 2005
    Publication date: January 4, 2007
    Inventors: Hao-Wen Ko, Tsung-Yu Lei, Wen-Shi Huang
  • Publication number: 20060285295
    Abstract: A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotational axis of the heat-dissipating device or the passage so as to enlarge intake or discharge area for the air streams. Accordingly, the intake airflow rate may be greatly increased and the heat-dissipating efficiency of the heat-dissipating device may be greatly enhanced without changing assembling conditions with other elements.
    Type: Application
    Filed: August 28, 2006
    Publication date: December 21, 2006
    Inventors: Hao-wen Ko, Tsung-Yu Lei, Kuo-cheng Lin, Hsiou-chen Chang
  • 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
  • Patent number: 7110255
    Abstract: A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotational axis of the heat-dissipating device or the passage so as to enlarge intake or discharge area for the air streams. Accordingly, the intake airflow rate may be greatly increased and the heat-dissipating efficiency of the heat-dissipating device may be greatly enhanced without changing assembling conditions with other elements.
    Type: Grant
    Filed: July 23, 2003
    Date of Patent: September 19, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Hao-wen Ko, Tsung-Yu Lei, Kuo-cheng Lin, Hsiou-chen Chang
  • Patent number: 7083387
    Abstract: An axial flow fan. The axial flow fan includes an impeller, an annular structure, and a plurality of connecting elements. The impeller has a plurality of blades, arranged radially. Each blade has an outer periphery. The outer periphery has a top portion. The annular structure is attached to the top portion of the outer periphery of each blade. Each connecting element respectively connects each blade to the annular structure.
    Type: Grant
    Filed: June 2, 2004
    Date of Patent: August 1, 2006
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Patent number: 7063504
    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: Grant
    Filed: January 9, 2003
    Date of Patent: June 20, 2006
    Assignee: Delta Electronics, Inc.
    Inventors: Wen-Shi Huang, Kuo-Cheng Lin, Li-Kuang Tan, Tsung-Yu Lei, Wen-Ha Liu
  • 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: 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: 20050207886
    Abstract: A centrifugal fan, comprising a frame and a first guide portion. The frame comprises a bottom portion and a curved wall connected thereto. The curved wall comprises an airflow inlet. The first guide portion disposed along the curved wall at the bottom portion comprises a beginning area, a middle area, and an ending area. The middle area connects the beginning and the ending areas, and the beginning area extends from the airflow inlet. The beginning area has a width less than that of the ending area, and the beginning area has a height greater than that of the ending area.
    Type: Application
    Filed: July 13, 2004
    Publication date: September 22, 2005
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Fan
    Patent number: D509896
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: September 20, 2005
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Hao-Wen Ko, Hao-Ming Chen
  • Fan
    Patent number: D511824
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: November 22, 2005
    Assignee: Delta Electronics, Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Kuo-Cheng Lin, Wen-Shi Huang
  • Fan
    Patent number: D513530
    Type: Grant
    Filed: April 1, 2004
    Date of Patent: January 10, 2006
    Assignee: Delta Electronics Inc.
    Inventors: Te-Fu Chen, Tsung-Yu Lei, Hao-Wen Ko, Hao-Ming Chen