Patents by Inventor Kuo-Chen Chang

Kuo-Chen Chang 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).

  • Patent number: 10511203
    Abstract: A motor stator structure includes a main body and multiple stopper plates. The main body has multiple magnetic poles and a shaft hole. The magnetic poles outward extend from the main body. Each magnetic pole has a free end outward extending from the main body. The shaft hole passes through the main body between two ends thereof. The stopper plates are respectively correspondingly assembled with the free ends of the magnetic poles. In the motor stator structure, the windings are more densely wound on the magnetic poles to enhance the magnetization efficiency.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: December 17, 2019
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Ching-Min Yang, Kuo-Chen Chang, Yen-Chih Lu
  • Publication number: 20190027991
    Abstract: A motor stator structure includes a main body and multiple stopper plates. The main body has multiple magnetic poles and a shaft hole. The magnetic poles outward extend from the main body. Each magnetic pole has a free end outward extending from the main body. The shaft hole passes through the main body between two ends thereof. The stopper plates are respectively correspondingly assembled with the free ends of the magnetic poles. In the motor stator structure, the windings are more densely wound on the magnetic poles to enhance the magnetization efficiency.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Inventors: Ching-Min Yang, Kuo-Chen Chang, Yen-Chih Lu
  • Patent number: 9533374
    Abstract: A manufacturing method in which laser welding is used to weld multiple posts of a protection structure with multiple splits of the silicon steel sheet assembly of a stator module. The manufacturing method has high welding precision and excellent sealing effect. Also, the welding time is shortened and the thermal deformation is reduced.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 3, 2017
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Patent number: 9523368
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: December 20, 2016
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Patent number: 9506473
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: November 29, 2016
    Assignee: Asia Vital Components
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Patent number: 9366291
    Abstract: A method for combining a sleeve and bearings, comprising the steps of: providing a base having a sleeve; disposing at least one bearing in the sleeve; and providing a laser beam to illuminate and melt a contact place between the perimeter of the bearing and the sleeve such that the bearing and the sleeve is combined firmly. Therefore, the effects of securing the bearings, reinforcing the structure thereof, and increasing the lifetimes of the bearings and the sleeve can be achieved.
    Type: Grant
    Filed: May 28, 2013
    Date of Patent: June 14, 2016
    Assignee: Asia Vital Components Co., Ltd.
    Inventors: Kuo-Chen Chang, Kuo-Chieh Chao
  • Publication number: 20150125276
    Abstract: A bearing holding structure includes a base and at least one bearing. The base includes a bearing cup, which is axially extended from a center of the base and defines a receiving space therein. The bearing is fitted in the receiving space of the bearing cup and has a shaft hole. At least one groove is provided on one or both of an inner surface of the bearing cup and an outer surface of the bearing; and the groove is communicable with the receiving space of the bearing cup. The groove is filled with a meltable filler, which is melted by laser welding to fixedly connect the bearing and the bearing cup to one another, such that the bearing is not brought by a rotary shaft to rotate and slide in the bearing cup, enabling the bearing and the bearing cup to have prolonged service life.
    Type: Application
    Filed: November 1, 2013
    Publication date: May 7, 2015
    Applicant: Asia Vital Components Co., Ltd.
    Inventors: Kuo-Chen Chang, Kuo-Chieh Chao
  • Publication number: 20140355917
    Abstract: A connection structure for a shaft and a bearing includes a shaft and at least one bearing. The bearing has a shaft hole for the shaft to insert therein, a first face and a second face opposite to the first face. An outer circumference of the shaft is welded with a circumference of the shaft hole in adjacency to the first face of the bearing to form at least one first welding section connected between contact sections of the outer circumference of the shaft and the circumference of the shaft hole in adjacency to the first face. Via the first welding section, the shaft is integrally connected with the bearing. Therefore, the shaft and the bearing are more securely fixed with each other and the manufacturing cost is lowered.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Inventors: Kuo-Chen Chang, Kuo-Chieh Chao
  • Publication number: 20140352126
    Abstract: A method for combining a sleeve and bearings, comprising the steps of: providing a base having a sleeve; disposing at least one bearing in the sleeve; and providing a laser beam to illuminate and melt a contact place between the perimeter of the bearing and the sleeve such that the bearing and the sleeve is combined firmly. Therefore, the effects of securing the bearings, reinforcing the structure thereof, and increasing the lifetimes of the bearings and the sleeve can be achieved.
    Type: Application
    Filed: May 28, 2013
    Publication date: December 4, 2014
    Applicant: ASIA VITAL COMPONENTS CO., LTD.
    Inventors: Kuo-Chen Chang, Kuo-Chieh Chao
  • Publication number: 20140263210
    Abstract: A manufacturing method in which laser welding is used to weld multiple posts of a protection structure with multiple splits of the silicon steel sheet assembly of a stator module. The manufacturing method has high welding precision and excellent sealing effect. Also, the welding time is shortened and the thermal deformation is reduced.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Publication number: 20140248165
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Publication number: 20140248164
    Abstract: A fan includes a fan frame, a rotor, a stator module and a protection structure. The fan frame has a base seat and the stator module is disposed on the base seat. The stator module includes a silicon steel sheet assembly having multiple splits and multiple outer faces. The rotor is disposed in the fan frame corresponding to the outer faces of the silicon steel sheet assembly. The protection structure includes multiple posts corresponding to the splits of the silicon steel sheet assembly. The posts are welded with the splits by means of laser welding.
    Type: Application
    Filed: March 4, 2013
    Publication date: September 4, 2014
    Inventors: Bor-Haw Chang, Shu-Fan Liu, Kuo-Chen Chang
  • Publication number: 20130189130
    Abstract: A fan motor structure includes a fan frame, a rotor, at least one magnetic element, and a stator. The fan frame includes a frame body and a frame cover that are closed to each other to define a receiving space between them; and a shaft seat mounted on a bottom of the frame body to locate in the receiving space. The rotor includes a hub rotatably connected to the shaft seat, and a plurality of blades outward extended from an outer surface of the hub. The magnetic element is connected to each of the blades in a continuous manner or in a discontinuous manner. The stator is arranged in the receiving space between a bottom of the frame body and the blades. With the fan motor structure, a fan can have increased air intake, produce more air flows and be assembled with reduced time and labor.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Bor-Haw Chang, Kuo-Chen Chang
  • Patent number: 6405386
    Abstract: The present invention relates to a combination hydrotherapy swim pool structure including a plurality of side rods assembled with a plurality of transverse rods to form a swim pool support frame. An enclosure is mounted on the side rods and the transverse rods. Thus, the present invention forms a simple swim pool that can be assembled and dismantled easily and quickly. The enclosure is formed with multiple water inlet/outlet holes, and a water output control device has multiple connecting pipes each connected to the water inlet/outlet hole for ejecting water beams, thereby massaging the human body in a hydrotherapy manner. An air cushion is mounted on the periphery of the swim pool support frame, thereby keeping the water temperature of the hydrotherapy swim pool structure, and providing a comfortable sensation to the user, so as to achieve the hydrotherapy massaging effect with comfort and safety.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: June 18, 2002
    Inventor: Kuo-Chen Chang
  • Publication number: 20020042947
    Abstract: The present invention relates to a combination hydrotherapy swim pool structure including a plurality of side rods assembled with a plurality of transverse rods to form a swim pool support frame. An enclosure is mounted on the side rods and the transverse rods. Thus, the present invention forms a simple swim pool that can be assembled and dismantled easily and quickly. The enclosure is formed with multiple water inlet/outlet holes, and a water output control device has multiple connecting pipes each connected to the water inlet/outlet hole for ejecting water beams, thereby massaging the human body in a hydrotherapy manner. An air cushion is mounted on the periphery of the swim pool support frame, thereby keeping the water temperature of the hydrotherapy swim pool structure, and providing a comfortable sensation to the user, so as to achieve the hydrotherapy massaging effect with comfort and safety.
    Type: Application
    Filed: July 12, 2001
    Publication date: April 18, 2002
    Inventor: Kuo-Chen Chang