Patents by Inventor Chih-Wei Chan

Chih-Wei Chan 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: 20190226522
    Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN
  • Publication number: 20190226523
    Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
    Type: Application
    Filed: March 29, 2019
    Publication date: July 25, 2019
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN
  • Publication number: 20190136908
    Abstract: A bearing structure includes a plurality of wave-shaped grooves and an inner surface. The wave-shaped grooves are formed on the inner surface for receiving a lubricating fluid. Each of the wave-shaped grooves extends along a longitudinal axis of the bearing structure. Each of the wave-shaped grooves includes a first peak section, a second peak section, two first connecting sections, two second connecting sections and a trough section. The two first connecting sections are connected to opposite sides of the first peak section, and the two second connecting sections are connected to opposite sides of the second peak section. The trough section is disposed between the first peak section and the second peak section, and the trough section is connected to one of the first connecting sections and one of the second connecting sections. The first and second peak sections and the trough section have a circular arc structure.
    Type: Application
    Filed: October 1, 2018
    Publication date: May 9, 2019
    Inventors: Ching-Hsien YEH, Chih-Wei CHAN
  • Patent number: 10280975
    Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: May 7, 2019
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Cheng-Hsien Yeh, Chih-Wei Chan
  • FAN
    Publication number: 20190128278
    Abstract: A fan includes a hub and a blade assembly. The hub has a central portion and an extension portion. The extension portion is extended outwardly from a peripheral edge of the central portion. The blade assembly includes a plurality of blades. Each blade has a leading edge, each of the leading edges is an end point of each blade that is most close to the central portion. The blades are disposed around the hub. At least a part of the leading edges of the blades are connected to the extension portion, and distances between a center of the central portion and the leading edges of at least two blades are different. Therefore, the factors of fan and the quality of voice could be enhanced, and the multi-frequencies noise could be avoided during operation.
    Type: Application
    Filed: March 30, 2018
    Publication date: May 2, 2019
    Applicant: DELTA ELECTRONICS, INC.
    Inventors: Chih-Wei Chan, Ching-Hsien Yeh
  • Publication number: 20180231009
    Abstract: A thin fan includes a frame and a driving device disposed in the frame. The driving device includes a stator structure and a rotor structure. The stator structure includes a stator pole group and a base body connected to the frame. The stator pole group is disposed on the outer periphery of the base body. The rotor structure is disposed corresponding to the stator structure, and includes a rotor shell, a magnetic structure and an impeller connected to the rotor shell. The center of the rotor shell is formed with a cylindrical shaft, which deeply penetrates into the base body. The rotor shell and the shaft are a single component manufactured by processing a single material workpiece. The magnetic structure is disposed on the inner wall of the rotor shell, and the stator magnetic pole group magnetically drives the magnetic structure as well as the rotor shell to rotate.
    Type: Application
    Filed: December 29, 2017
    Publication date: August 16, 2018
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN
  • Publication number: 20180235103
    Abstract: A thin fan includes a frame and a driving device. The fan frame includes a base and a frame shell. The driving device includes a stator structure and a rotor structure disposed corresponding to the stator structure. The stator structure includes a stator pole group, a bushing, a bearing and a compression-resistant pillar. The rotor structure includes a hollow-cylindrical shaft, a rotor shell, a magnetic structure and an impeller. The shaft is mounted on the outer periphery of the compression-resistant pillar and is disposed between the compression-resistant pillar and the bearing. The rotor shell is connected to the shaft. The magnetic structure is disposed on the inner wall of the rotor shell, and the impeller is connected to the rotor shell. The maximum height of the rotor structure is lower than the height of the compression-resistant pillar when the rotor structure is connected to the stator structure.
    Type: Application
    Filed: December 29, 2017
    Publication date: August 16, 2018
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN
  • Publication number: 20180128312
    Abstract: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
    Type: Application
    Filed: February 22, 2017
    Publication date: May 10, 2018
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN
  • Patent number: 9903415
    Abstract: A motor includes a shaft, a rotor shell, a bushing, a bearing, and a thrust plate. The rotor shell is connected with the shaft. The bushing has an accommodating space. The bearing is disposed in the accommodating space, and the shaft is disposed through the bearing. The thrust plate is connected with the shaft, and is disposed between a bottom of the accommodating space and a bottom of the bearing. At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center.
    Type: Grant
    Filed: October 10, 2014
    Date of Patent: February 27, 2018
    Assignee: DELTA ELECTRONICS, INC.
    Inventors: Cheng-Hsien Yeh, Chih-Wei Chan, Chao-Wen Lu
  • Patent number: 9238318
    Abstract: A method for manufacturing a motor includes the following steps of: providing a substrate with an opening and a bushing; disposing the bushing within the opening of the substrate; providing a cushioning material disposed between the substrate and the bushing by injection molding.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: January 19, 2016
    Assignee: DELTA ELETRONICS, INC.
    Inventors: Chao-Wen Lu, Chih-Wei Chan
  • Publication number: 20150192171
    Abstract: A motor includes a shaft, a rotor shell, a bushing, a bearing, and a thrust plate. The rotor shell is connected with the shaft. The bushing has an accommodating space. The bearing is disposed in the accommodating space, and the shaft is disposed through the bearing. The thrust plate is connected with the shaft, and is disposed between a bottom of the accommodating space and a bottom of the bearing. At least one surface of the thrust plate is formed with a plurality of grooves tapering off from an edge to a center.
    Type: Application
    Filed: October 10, 2014
    Publication date: July 9, 2015
    Inventors: Cheng-Hsien YEH, Chih-Wei CHAN, Chao-Wen LU
  • Publication number: 20130056902
    Abstract: A method for manufacturing a motor includes the following steps of: providing a substrate with an opening and a bushing; disposing the bushing within the opening of the substrate; providing a cushioning material disposed between the substrate and the bushing by injection molding.
    Type: Application
    Filed: August 29, 2012
    Publication date: March 7, 2013
    Inventors: Chao-Wen LU, Chih-Wei Chan
  • Patent number: 8082324
    Abstract: A method of establishing a tunnel between network terminal devices passing through firewall is applied to a network system which comprises at least two private networks and Internet wherein each of said private networks comprises at least a NAT router and at least a network terminal device (such as a computer, web camera, IP phone, network disk or network printer with network interface etc.), and each of said network terminal devices connects to the Internet through corresponding NAT router respectively. The method enables each of said network terminal devices of said private networks to detect the firewall policy of corresponding NAT router so as to pass through the firewall installed in corresponding NAT router according to its setting and establish a tunnel between said network terminal devices over the Internet for communication and data access by using p2p, a local relay or a remote relay.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: December 20, 2011
    Assignee: D-Link Corporation
    Inventors: Yi-Hsiang Lin, You-Hsin Yen, Chih-Wei Chan, Li-Ming Huang
  • Publication number: 20090106394
    Abstract: A method of establishing a tunnel between network terminal devices passing through firewall is applied to a network system which comprises at least two private networks and Internet wherein each of said private networks comprises at least a NAT router and at least a network terminal device (such as a computer, web camera, IP phone, network disk or network printer with network interface etc.), and each of said network terminal devices connects to the Internet through corresponding NAT router respectively. The method enables each of said network terminal devices of said private networks to detect the firewall policy of corresponding NAT router so as to pass through the firewall installed in corresponding NAT router according to its setting and establish a tunnel between said network terminal devices over the Internet for communication and data access by using p2p, a local relay or a remote relay.
    Type: Application
    Filed: December 4, 2007
    Publication date: April 23, 2009
    Applicant: D-Link Corporation
    Inventors: Yi-Hsiang Lin, You-Hsin Yen, Chih-Wei Chan, Li-Ming Huang