Patents by Inventor Yi-Lun Cheng

Yi-Lun Cheng 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: 20130294030
    Abstract: The disclosure provides an electronic device and a heat dissipation module having an imaginary structural plane. The heat dissipation module includes a fin assembly, a connecting part and a heat pipe. The fin assembly is disposed on the structural plane and includes a plurality of fin elements extending along a first direction. The connecting part is connected to the fin elements. The fin elements are connected to each other via the connecting part. At least one portion of the connecting part is connected to at least one portion of the heat pipe, and the connecting part and the heat pipe both extend along a second direction. The fin assembly and the connecting part are integrated and formed into one piece by die casting. The first direction and the second direction form a first included angle greater than 0 degree.
    Type: Application
    Filed: December 14, 2012
    Publication date: November 7, 2013
    Applicants: INVENTEC CORPORATION, Inventec (Pudong) Technology Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Chih-Kai Yang, Wei-Hsin Wu, Hua-Feng Chen, Ming-Hung Lin
  • Publication number: 20130240182
    Abstract: An electronic device comprises a casing, a heat generation source, an airflow guiding structure, and a jet flow generator. The casing includes an interior space. The airflow guiding structure is in contact with the heat generation source and has one air inlet. The jet flow generator, the heat generation source, and the airflow guiding structure together are situated within the interior space. The jet flow generator includes a nozzle which directs toward the air inlet of the airflow guiding structure at a distance apart. Airflows emitted by the jet flow generator through the nozzle travel at a velocity greater than 0.1 meters/second (m/s), causing a fluid pressure differential with the neighboring air and pulling air in the vicinity along the air inlet into the airflow guiding structure.
    Type: Application
    Filed: December 14, 2012
    Publication date: September 19, 2013
    Applicants: INVENTEC CORPORATION, INVENTEC (PUDONG) TECHNOLOGY CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Chih-Kai Yang
  • Patent number: 8482916
    Abstract: A mobile computing apparatus includes a shell, a circuit board, a first heat-dissipation module, a centrifugal fan for exhaust, and a centrifugal fan for convection. The shell has a first through hole. The circuit board is disposed on the shell, and has a first heat-generation device. The first heat-dissipation module has a first heat-absorption end and a first heat-dissipation end, and the first heat-absorption end thermally contacts with the first heat-generation device. The centrifugal fan for exhaust has a first gas outlet, and the first heat-dissipation end is located between the first gas outlet and the first through hole, so that the centrifugal fan for exhaust exhausts to an outside of the shell. The centrifugal fan for convection is configured in the shell, and exhausts to an inside of the shell. Therefore, gas flow circulation occurs in the shell, so that the mobile computing apparatus has a desirable heat-dissipation effect.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: July 9, 2013
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Patent number: 8388221
    Abstract: A corresponding relation between heat resistance values of first heat dissipation modules under a non-uniform heat source and heat resistance values of the first heat dissipation modules under a uniform heat source is described through a linear equation. Therefore, before second heat dissipation modules are tested, a calculation is performed with the linear equation, such that a target heat resistance value of the first heat dissipation modules arranged on the non-uniform heat source is corresponding to a standard heat resistance value of the first heat dissipation modules arranged on the uniform heat source. Afterwards, it is predicted whether the second heat dissipation modules arranged on the non-uniform heat source satisfy a test standard or not by using a test heat resistance value acquired by testing the second heat dissipation modules arranged on the uniform heat source.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: March 5, 2013
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Patent number: 8340922
    Abstract: A method for estimating a fan life includes the following steps. Fans to be checked at a number of M are provided. A working temperature and a test temperature of a fan are set, and the test temperature is greater than the working temperature. An acceleration factor is set, which has a fixed value. The fans are kept in an operating state at the test temperature, and a number of the damaged fans is detected and recorded at intervals of a check time, until N damaged fans are detected. A distribution of time points when the fans are damaged is simulated with a Weibull distribution model, and a shape parameter and a characteristic life of the Weibull distribution model are calculated. A life value of the fans at the test temperature is calculated. A life value of the fans at the working temperature is calculated by using the acceleration factor.
    Type: Grant
    Filed: March 29, 2010
    Date of Patent: December 25, 2012
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Publication number: 20120194995
    Abstract: A mobile computing apparatus includes a shell, a circuit board, a first heat-dissipation module, a centrifugal fan for exhaust, and a centrifugal fan for convection. The shell has a first through hole. The circuit board is disposed on the shell, and has a first heat-generation device. The first heat-dissipation module has a first heat-absorption end and a first heat-dissipation end, and the first heat-absorption end thermally contacts with the first heat-generation device. The centrifugal fan for exhaust has a first gas outlet, and the first heat-dissipation end is located between the first gas outlet and the first through hole, so that the centrifugal fan for exhaust exhausts to an outside of the shell. The centrifugal fan for convection is configured in the shell, and exhausts to an inside of the shell. Therefore, gas flow circulation occurs in the shell, so that the mobile computing apparatus has a desirable heat-dissipation effect.
    Type: Application
    Filed: July 5, 2011
    Publication date: August 2, 2012
    Applicant: INVENTEC CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Patent number: 8078438
    Abstract: A method for simulating a thermal resistance value of a thermal test die is provided to estimate a relationship between the thermal resistance value of a heating block and the thermal resistance value of the thermal test die, and to find out a size of the heating block that matches an actual thermal situation of the thermal test die. In addition, after being tested by the heating block, the reliability of the testing result may be improved by verifying whether the relationship of a transient response of thermal resistance of the heating block and a steady-state response of thermal resistance of the thermal test die is within a range of a setting variation.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: December 13, 2011
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Publication number: 20110125418
    Abstract: A method for estimating a fan life includes the following steps. Fans to be checked at a number of M are provided. A working temperature and a test temperature of a fan are set, and the test temperature is greater than the working temperature. An acceleration factor is set, which has a fixed value. The fans are kept in an operating state at the test temperature, and a number of the damaged fans is detected and recorded at intervals of a check time, until N damaged fans are detected. A distribution of time points when the fans are damaged is simulated with a Weibull distribution model, and a shape parameter and a characteristic life of the Weibull distribution model are calculated. A life value of the fans at the test temperature is calculated. A life value of the fans at the working temperature is calculated by using the acceleration factor.
    Type: Application
    Filed: March 29, 2010
    Publication date: May 26, 2011
    Applicant: INVENTEC CORPORATION
    Inventors: Feng Ku Wang, Yi Lun Cheng
  • Publication number: 20110122915
    Abstract: A method for testing heat pipes includes the following steps. A plurality of bar-shaped heat pipes having the same size is provided, and the heat pipes are deformed. The deformed heat pipes are placed in a temperature regulator, such that a temperature of the heat pipes is periodically changed between a first temperature and a second temperature. The heat pipes are then taken out of the temperature regulator. One end of each heat pipe is maintained at a third temperature by a thermostatic device, and a heat pipe temperature difference of two opposite ends of the heat pipe is measured. The heat pipes having the heat pipe temperature difference greater than a standard temperature difference in the heat pipes are marked.
    Type: Application
    Filed: May 3, 2010
    Publication date: May 26, 2011
    Applicant: INVENTEC CORPORATION
    Inventors: Feng Ku Wang, Yi Lun Cheng, Chih-Kai Yang
  • Publication number: 20110122914
    Abstract: A corresponding relation between heat resistance values of first heat dissipation modules under a non-uniform heat source and heat resistance values of the first heat dissipation modules under a uniform heat source is described through a linear equation. Therefore, before second heat dissipation modules are tested, a calculation is performed with the linear equation, such that a target heat resistance value of the first heat dissipation modules arranged on the non-uniform heat source is corresponding to a standard heat resistance value of the first heat dissipation modules arranged on the uniform heat source. Afterwards, it is predicted whether the second heat dissipation modules arranged on the non-uniform heat source satisfy a test standard or not by using a test heat resistance value acquired by testing the second heat dissipation modules arranged on the uniform heat source.
    Type: Application
    Filed: March 29, 2010
    Publication date: May 26, 2011
    Inventors: Feng Ku WANG, Yi Lun CHENG
  • Patent number: 7757627
    Abstract: An automatic coating device uses a driving motor and a conveyer to form a cyclically rotating module. An injector filled with a coating material is disposed on one side of the conveyer. When an object to be coated is disposed on the other side of the moving conveyer, the coating material is then applied onto the object by the injector. This can increase the coating speed and quality.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: July 20, 2010
    Assignee: Inventec Corporation
    Inventors: Yi-Lun Cheng, Feng-Ku Wang, Chun-Lung Lin, Chih-Kai Yang
  • Publication number: 20100014247
    Abstract: An anti-turbulent casing includes a plate and an airflow guiding element. The plate has a first surface and a second surface opposite to the first surface. The first surface faces outward, and the second surface faces an interior of an electronic device. In addition, the plate has an opening passing through the first surface and the second surface. The airflow guiding element is disposed on the plate and has a curved surface and two sidewall surfaces connected between the curved surface and the second surface, and the curved surface protrudes out of the second surface and extends on top of the opening. The airflow guiding element makes the cooling airflow in a state of laminar.
    Type: Application
    Filed: July 15, 2009
    Publication date: January 21, 2010
    Applicant: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Patent number: 7589969
    Abstract: A folding protective cover structure is used to cover and protect a heat-conductive medium disposed on the bottom surface of a heat sink device. An unfoldable plate body is employed and has a hollow portion, a folding portion, and an adhesive area; wherein the hollow portion is used for surrounding the heat-conductive medium with a frame-fixing plate extending from its edge, which is folded towards an opposite direction of the heat-conductive medium, so as to keep an upright state; the folding portion is folded towards the hollow portion, so that the frame-fixing plate passes through the folding portion to clip and fix the folding portion, thus forming an accommodating space for protecting the heat-conductive medium; and the adhesive area is located at the edge of the hollow portion, facing the surface of the heat sink device, for adhering and securing the plate body to the heat sink device.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: September 15, 2009
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Chun-Yi Chang, Jui-Chan Fan, Chun-Lung Lin, Chih-Kai Yang
  • Patent number: 7558062
    Abstract: A heat-dissipating module suitable for dissipating heat generated by a heat-generating element is provided. The heat-dissipating module includes a first heat-conducting plate, a first heat-dissipating tube, and a fan. The first heat-conducting plate is thermally coupled to the heat-generating element. The first heat-dissipating tube has a first opening and a second opening opposite to the first opening. The first heat-conducting plate is connected to the first heat-dissipating tube and located at an outside of the first heat-dissipating tube. The fan is disposed adjacent to the first opening and corresponding to first opening. The fan is adapted for generating an air current flowing in the first heat-dissipating tube. The heat-dissipating module can transfer the heat generated by the heat-generating element during operation to an external environment.
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: July 7, 2009
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Chun-Lung Lin, Chih-Kai Yang, Cheng-Shi Liu
  • Publication number: 20090016020
    Abstract: A heat-dissipating module suitable for dissipating heat generated by a heat-generating element is provided. The heat-dissipating module includes a first heat-conducting plate, a first heat-dissipating tube, and a fan. The first heat-conducting plate is thermally coupled to the heat-generating element. The first heat-dissipating tube has a first opening and a second opening opposite to the first opening. The first heat-conducting plate is connected to the first heat-dissipating tube and located at an outside of the first heat-dissipating tube. The fan is disposed adjacent to the first opening and corresponding to first opening. The fan is adapted for generating an air current flowing in the first heat-dissipating tube. The heat-dissipating module can transfer the heat generated by the heat-generating element during operation to an external environment.
    Type: Application
    Filed: September 5, 2007
    Publication date: January 15, 2009
    Applicant: INVENTEC CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Chun-Lung Lin, Chih-Kai Yang, Cheng-Shi Liu
  • Publication number: 20090006048
    Abstract: A method for simulating a thermal resistance value of a thermal test die is provided to estimate a relationship between the thermal resistance value of a heating block and the thermal resistance value of the thermal test die, and to find out a size of the heating block that matches an actual thermal situation of the thermal test die. In addition, after being tested by the heating block, the reliability of the testing result may be improved by verifying whether the relationship of a transient response of thermal resistance of the heating block and a steady-state response of thermal resistance of the thermal test die is within a range of a setting variation.
    Type: Application
    Filed: February 6, 2008
    Publication date: January 1, 2009
    Applicant: INVENTEC CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng
  • Patent number: 7436673
    Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.
    Type: Grant
    Filed: November 30, 2006
    Date of Patent: October 14, 2008
    Assignee: Inventec Corporation
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang
  • Publication number: 20080130240
    Abstract: A fixing structure of heat conduction pad is used to uniformly press two heat conduction pads on the two heat generating electronic components on a circuit board respectively. The fixing structure includes a fixing member and an elastic member. The two ends of the elastic member are a fastening portion and a fixing portion respectively. The middle part of the elastic member is a pressing portion. In addition, a suspension arm is extended from the fixing portion. When the fastening portion is to be fasten on the circuit board and the fixing portion is to be fixed on the circuit board by the fixing member, the pressing portion presses one of the heat conduction pad on one of the heat generating electronic component, and the suspension arm presses the other heat conduction pad on the other heat generating electronic component.
    Type: Application
    Filed: November 30, 2006
    Publication date: June 5, 2008
    Applicant: INVENTEC CORPORATION
    Inventors: Feng-Ku Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang
  • Patent number: 7339787
    Abstract: A heat sink module includes a fan set and a heat sink plate. The fan set is integrated as a whole, reducing manufacture time, and the material of the fan set is plastic, thus reducing the weight as well. Due to the hook design of the fan set and the ear design of the heat sink plate, the number of screws is reduced. Furthermore, the screws pass through the first lug of the heat sink plate and the second lug of the fan set, so that the heat sink plate and the fan set are fixed on the motherboard, and thereby the number of the parts to be fixed by screws is reduced. Heat from the heat source on the motherboard is conducted to the fan set to be dispersed through the heat sink plate extending to the heat source and covering the fan set.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: March 4, 2008
    Assignee: Inventec Corporation
    Inventors: Yi-Lun Cheng, Chun-Lung Lin, Feng-Ku Wang
  • Patent number: 7319592
    Abstract: A protective cover with a heat-conductive medium of a heat sink apparatus is provided, which is used to cover and protect the heat-conductive medium placed at the bottom surface of a base of the heat sink apparatus. It includes a sheet-like board, an elastic wall, and an accommodation chamber, wherein the sheet-like board is concave and located at one side of the protective cover with the heat-conductive medium; the elastic wall is extended along the edge of the sheet-like board so as to provide a clipping force for clipping with the heat sink apparatus; and the accommodation chamber is formed by the concave portion of the sheet-like board to mask and cover the heat-conductive medium; while the sheet-like board is clipped to the heat sink apparatus through the elastic wall, such that the accommodation chamber is used to mask and cover the heat-conductive medium.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: January 15, 2008
    Assignee: Inventec Corporation
    Inventors: Frank Wang, Yi-Lun Cheng, Jui-Chan Fan, Chun-Yi Chang, Chun-Lung Lin, Chih-Kai Yang