Patents by Inventor Ching-Hsing Huang
Ching-Hsing Huang 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).
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Patent number: 7258488Abstract: A fluid bearing module has a bearing seat, a bearing, a deflecting member, and an impediment. The bearing seat has a capacity with an opening. The bearing in the capacity has a hollow space for the axis of a rotor to go through, and a lubricant medium is filled in between. The deflecting member protruding from the side near the opening of the bearing seat bends toward the capacity and clips on the rotor axis. The impediment protrudes from the side near the opening of the bearing seat for preventing the deflecting member from bending toward the opening and departing from the rotor. Moreover, the deflecting member and the impediment form a maze to keep the lubricant medium within.Type: GrantFiled: December 4, 2003Date of Patent: August 21, 2007Assignee: Industrial Technology Research InstituteInventors: Wun-Chang Shih, Ching-Hsing Huang, Yu-Hsiu Chang
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Patent number: 7251975Abstract: A manufacturing tool (20) for forming a dynamic pressure groove (52) in an inner peripheral surface of a bearing sleeve (50) includes a tool shaft (21) for being rotated in a bore of the bearing sleeve while being moved in an axial direction thereof. Protrusions (25) are integrally and circumferentially arranged on an outer periphery of the tool shaft near a leading end (22) thereof. Machining tips (26) are integrally formed on outmost ends of the protrusions for machining the inner peripheral surface of the bearing sleeve to form the dynamic pressure groove therein.Type: GrantFiled: June 24, 2005Date of Patent: August 7, 2007Assignee: Foxconn Technology Co., Ltd.Inventors: Wun-Chang Shih, Huan-Chao Lin, Ching-Hsing Huang, Chien-Long Hong, Hsien-Sheng Pei
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Patent number: 7229214Abstract: A fluid dynamic bearing unit includes a bearing housing (20) axially defining therein a bearing hole (21), a rotary shaft rotatably received in the bearing hole with a radial space formed between the rotary shaft and the bearing housing, and lubricant filled in the radial space. A ventilating path (25) is formed in a wall of the bearing housing to communicate a bottom of the bearing hole with an exterior of the bearing housing.Type: GrantFiled: December 14, 2004Date of Patent: June 12, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Ching-Hsing Huang, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20070110421Abstract: A motor structure with a built-in lens includes a lens mount (10), a motor (30) received in the lens mount, and a lens unit (50) received in the lens mount and driven by the motor to telescopically move along an axial thereof. The motor includes a stator (32) and a rotor (34) being rotatably received in the stator. A narrow gap is defined between an inner surface of the stator and an outer surface of the rotor. A bearing layer (36) is filled in the gap of the motor to avoid swing of the rotor during rotation thereof. The lens unit threadedly engages with the rotor, whereby when the rotor rotates, the lens unit has a linearly telescopic movement relative to the lens mount.Type: ApplicationFiled: August 1, 2006Publication date: May 17, 2007Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventors: CHENG-FANG HSIAO, WUN-CHANG SHIH, CHING-HSING HUANG, CHIEN-LONG HONG
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Publication number: 20070076991Abstract: A hydrodynamic bearing assembly (30) includes a bearing sleeve (10) defining at least an open end therein (14); a shaft (20) rotatably disposed in the bearing sleeve; lubricant (40) filled in a bearing clearance (11) formed between an outer face (21) of the shaft and an inner face (12) of the bearing sleeve; and a leakage-preventing band disposed at the open end of the bearing sleeve. An outer face of the shaft defines a plurality of lubricant pressure generating grooves (17) straightly along an axial direction thereof for generation of hydrodynamic pressure of the lubricant. Each groove has a depth gradually decreased along a rotation direction of the shaft.Type: ApplicationFiled: May 25, 2006Publication date: April 5, 2007Inventors: Ching-Hsing Huang, Chien-Long Hong, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20070076992Abstract: A hydrodynamic bearing assembly (10) includes a bearing sleeve (11) defining a receiving chamber (113) therein, a bearing (12) received in the receiving chamber of the bearing sleeve, a sealing cover (15) mounted to an open end (112) of the bearing sleeve and including an enlarged section (153) adjacent to the bearing, a shaft (13) extending through the sealing cover and rotatably disposed in the bearing, on which a plurality lubricant pressure generating grooves are defined, and a lubricant retaining space (117) defined by the enlarged section of the sealing cover, an end of the bearing and the shaft for receiving lubricant therein. One of the sealing cover and the shaft defines a groove (134) therein, while the other one of the sealing cover and the shaft extends a flange (156) into the groove.Type: ApplicationFiled: May 25, 2006Publication date: April 5, 2007Inventors: Chien-Long Hong, Ching-Hsing Huang, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20070053073Abstract: A motor structure with a built-in lens includes a lens mount (10), a motor (30) received in the lens mount, and a lens unit (50) received in the lens mount. The lens unit is drove by the motor to telescopically move along an axial thereof when a rotor (34) of the motor is rotated. A guiding member (70) arranged on an end of the motor for preventing an axial movement of the motor. The guiding member includes at least a leg (78) extending along an axial direction therefrom for guiding the axial movement of the lens unit.Type: ApplicationFiled: May 30, 2006Publication date: March 8, 2007Inventors: Cheng-Fang Hsiao, Wun-Chang Shih, Ching-Hsing Huang, Chien-Long Hong, Hsien-Sheng Pei
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Patent number: 7186027Abstract: A fan motor includes an integral bearing member (40?) defining therein an axial inner bearing hole (21?) and forming a ventilating path (25?) in a wall portion thereof to communicate a bottom of the bearing hole with an exterior of the bearing member, a stator assembly (50) mounted to an outer periphery of the bearing member, and a rotor assembly (60) comprising a rotary shaft (68) extending into the bearing hole and a permanent magnet (66) confronting the stator assembly. Lubricating oil is filled between the rotary shaft and bearing member to establish dynamic pressure to separate the rotary shaft and the bearing member in radial direction when the rotary shaft rotates.Type: GrantFiled: December 14, 2004Date of Patent: March 6, 2007Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Ching-Hsing Huang, Chien-Long Hong, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20070020129Abstract: A liquid pump (100) includes a top cover (40), a back plate (50), and a spacing member (60). The spacing member is sandwiched between the top cover and the back plate, thereby dividing an interior of the liquid pump into a fluid chamber (14) and a receiving cavity (16) isolated and hermetical from the fluid chamber. The fluid chamber is disposed between the top cover and the spacing member for receiving therein a fluid dynamic bearing (70) and a rotor (20) which drives working fluid to enter and leave the liquid pump. The receiving cavity is disposed between the spacing member and the back plate for receiving therein a stator (30) which drives the rotor to rotate in respective to the bearing.Type: ApplicationFiled: March 8, 2006Publication date: January 25, 2007Inventors: Ching-Hsing Huang, Wun-Chang Shih, Chien-Long Hong, Huan-Chao Lin, Wei-Ben Wang, Fong-Tan Yu, Hsien-Sheng Pei
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Patent number: 7140777Abstract: A hydrodynamic bearing assembly comprises a bearing (10) defining a bearing hole (12) therein, a shaft (20) rotatably received in the bearing hole with a bearing clearance formed between a bearing surface of the bearing and an outer surface of the shaft, and a cover (40) attached to a top end of the bearing. The bearing clearance is filled with lubricant. A locking groove (22) is formed in an outer periphery of the shaft. The cover defines a through hole (42) receiving the shaft at the locking groove. Interlocking devices are formed on the cover and the bearing to join the cover and the bearing.Type: GrantFiled: December 20, 2004Date of Patent: November 28, 2006Assignee: Hon Hai Precision Industry Co., Ltd.Inventors: Wun-Chang Shih, Ching-Hsing Huang, Chien-Long Hong, Huan-chao Lin, Hsien-Sheng Pei
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Publication number: 20060208616Abstract: An ultrasonic motor includes a rotor (70) and a piezoelectric driving unit (50) for driving the rotor to rotate. The driving unit includes a piezoelectric film (52) and a vibration film (54) contacting with the rotor at an outer-periphery thereof. The ultrasonic motor further includes covers (56, 58) having a plurality of poles (560, 580) extending therefrom. Free ends of the poles fixedly connect with top and bottom sides of the vibration film, respectively.Type: ApplicationFiled: March 3, 2006Publication date: September 21, 2006Inventors: Ching-Hsing Huang, Chien-Long Hong, Huan-Chao Lin, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20060197479Abstract: A sensorless and brushless motor is disclosed including a stator, a rotor, a control circuit and an induction coil (50). The stator includes a stator core (30) and a stator coil (34) wound around the stator core. The rotor includes a rotor magnet (40). The control circuit is electrically connected with the stator coil for controlling a current energizing the stator coil. The induction coil is mounted to the stator and electrically connected with the control circuit. When the rotor rotates, the induction coil is capable of outputting a signal to the control circuit and in response to the signal, the control circuit is capable of changing a direction of the current flowing in the stator coil. Thus, the commutation control for the stator coil is performed by the induction coil and the conventional Hall sensor is eliminated.Type: ApplicationFiled: December 21, 2005Publication date: September 7, 2006Inventors: Wei-Ben Wang, Wun-Chang Shih, Ching-Hsing Huang, Chien-Long Hong, Chiung-Mei Wang, Chin-Jung Chen, Hsiang-Ho Huang, Huan-Chao Lin, Hsien-Sheng Pei
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Publication number: 20060133702Abstract: A hydrodynamic bearing assembly comprises a bearing (10) defining a bearing hole (12) therein, a shaft (20) rotatably received in the bearing hole with a bearing clearance formed between a bearing surface of the bearing and an outer surface of the shaft, and a cover (40) attached to a top end of the bearing. The bearing clearance is filled with lubricant. A locking groove (22) is formed in an outer periphery of the shaft. The cover defines a through hole (42) receiving the shaft at the locking groove. Interlocking devices are formed on the cover and the bearing to join the cover and the bearing.Type: ApplicationFiled: December 20, 2004Publication date: June 22, 2006Applicant: HON HAI Precision Industry CO., LTD.Inventors: Wun-Chang Shih, Ching-Hsing Huang, Chien-Long Hong, Huan-Chao Lin, Hsien-Sheng Pei
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Publication number: 20060126976Abstract: A fan motor includes an integral bearing member (40?) defining therein an axial inner bearing hole (21?) and forming a ventilating path (25?) in a wall portion thereof to communicate a bottom of the bearing hole with an exterior of the bearing member, a stator assembly (50) mounted to an outer periphery of the bearing member, and a rotor assembly (60) comprising a rotary shaft (68) extending into the bearing hole and a permanent magnet (66) confronting the stator assembly. Lubricating oil is filled between the rotary shaft and bearing member to establish dynamic pressure to separate the rotary shaft and the bearing member in radial direction when the rotary shaft rotates.Type: ApplicationFiled: December 14, 2004Publication date: June 15, 2006Applicant: HON HAI Precision Industry CO., LTD.Inventors: Ching-Hsing Huang, Chien-Long Hong, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20060126980Abstract: A motor includes a support member (40) having a bearing housing (20) defining a bearing hole (21) therein, a stator assembly (50) mounted to an outer periphery of the support member, and a rotor assembly (60) having a rotary shaft (68) extending into the bearing hole and a permanent magnet (66) confronting the stator assembly. A bearing pattern (100) is formed on either of the bearing housing and the rotary shaft. The bearing pattern includes a number of first and second grooves (13, 16) arranged circumferentially in an alternate fashion. Each of the first grooves is in communication with one adjacent second groove at an edge of the bearing pattern. Lubricating oil filled in the bearing pattern to establish dynamic pressure to separate the shaft and the bearing sleeve in radial direction when the shaft rotates.Type: ApplicationFiled: December 14, 2004Publication date: June 15, 2006Applicant: Hon Hai Precision Industry CO., LTD.Inventors: Ching-Hsing Huang, Chien-Long Hong, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20060123623Abstract: A manufacturing tool (20) for forming a dynamic pressure groove (52) in an inner peripheral surface of a bearing sleeve (50) includes a tool shaft (21) for being rotated in a bore of the bearing sleeve while being moved in an axial direction thereof. Protrusions (25) are integrally and circumferentially arranged on an outer periphery of the tool shaft near a leading end (22) thereof. Machining tips (26) are integrally formed on outmost ends of the protrusions for machining the inner peripheral surface of the bearing sleeve to form the dynamic pressure groove therein.Type: ApplicationFiled: June 24, 2005Publication date: June 15, 2006Applicant: FoxconnTechnology Co., Ltd.Inventors: Wun-Chang Shih, Huan-Chao Lin, Ching-Hsing Huang, Chien-Long Hong, Hsien-Sheng Pei
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Publication number: 20060039633Abstract: A fluid dynamic bearing unit includes a bearing housing (20) axially defining therein a bearing hole (21), a rotary shaft rotatably received in the bearing hole with a radial space formed between the rotary shaft and the bearing housing, and lubricant filled in the radial space. A ventilating path (25) is formed in a wall of the bearing housing to communicate a bottom of the bearing hole with an exterior of the bearing housing.Type: ApplicationFiled: December 14, 2004Publication date: February 23, 2006Applicant: HON HAI Precision Industry CO., LTD.Inventors: Ching-Hsing Huang, Wun-Chang Shih, Hsien-Sheng Pei
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Publication number: 20060034554Abstract: A fluid dynamic bearing includes a bearing member (30) axially defining an inner bearing hole therein, and a spindle shaft (20) rotatably received in the bearing hole with a bearing clearance formed between an inner periphery of the bearing member and an outer periphery of the spindle shaft. Lubricant is filled in the bearing clearance. One of the inner periphery and the outer periphery comprises a bearing surface (10) with channels formed therein. The channels form a plurality of outer communication ends (1316b) at opposite sides of the bearing surface in the axial direction of the bearing member.Type: ApplicationFiled: December 14, 2004Publication date: February 16, 2006Applicant: HON HAI Precision Industry CO., LTD.Inventors: Ching-Hsing Huang, Wun-Chang Shih, Hsien-Sheng Pei
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Patent number: 6880976Abstract: A hybrid type hydrodynamic and hydrostatic bearing and its manufacturing method are disclosed by the invention. By making use of a penetrated dynamic pressure generating groove carved on the surface of the bushing inside the housing, the processing efficiency of the tiny grooves can be substantially improved. Also, after combining the housing with the bushing, and utilizing porous material that is able to preserve a lubricant, the pressurization by gas can be added externally on the surface of the porous material. After being sealed, the gas prepress can force the lubricant to fill the interval between the bushing and shaft. The bearing can achieve the effect of lubricating and supporting the shaft.Type: GrantFiled: December 14, 2001Date of Patent: April 19, 2005Assignee: Industrial Technology Research InstituteInventors: Ching-Hsing Huang, Hung-Kuang Hsu
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Publication number: 20050069235Abstract: A fluid bearing module has a bearing seat, a bearing, a deflecting member, and an impediment. The bearing seat has a capacity with an opening. The bearing in the capacity has a hollow space for the axis of a rotor to go through, and a lubricant medium is filled in between. The deflecting member protruding from the side near the opening of the bearing seat bends toward the capacity and clips on the rotor axis. The impediment protrudes from the side near the opening of the bearing seat for preventing the deflecting member from bending toward the opening and departing from the rotor. Moreover, the deflecting member and the impediment form a maze to keep the lubricant medium within.Type: ApplicationFiled: December 4, 2003Publication date: March 31, 2005Inventors: Wun-Chang Shih, Ching-Hsing Huang, Yu-Hsiu Chang