Patents by Inventor Yin-Jao Luo
Yin-Jao Luo 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: 10348163Abstract: A stator assembly is used to be assembled to form a stator core. The stator assembly includes a tooth and a yoke. One end of the tooth is connected to the yoke. The yoke has an inner side, an outer side, a first coupling side, and a second coupling side. The first coupling side further includes a first engaging structure, and the second coupling side further includes a second engaging structure. The second engaging structure corresponds the first engaging structure. The outer side has a groove. The groove has a side surface and a bottom surface. An angle is defined between the side surface and the bottom surface, and the angle is in a range from 135° to 165°.Type: GrantFiled: February 23, 2017Date of Patent: July 9, 2019Assignee: CHICONY POWER TECHNOLOGY CO., LTD.Inventors: Yu-Chin Lin, Shih-Wei Hung, Shao-Chung Yuan, Yin-Jao Luo
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Patent number: 10312764Abstract: A fixing device for junction wires of a stator of a motor includes a box and flat conductors. The box has circular grooves radially arranged at a side of the box and terminal accommodating grooves located at a peripheral edge at the side of the box. Each of the flat conductors has an arc-shaped holding portion and two terminals connected to an upper edge of the arc-shaped holding portion and horizontally bended. The arc-shaped holding portions are accommodated in the circular grooves. The terminals are exposed out of the circular grooves and partially accommodated in the terminal accommodating grooves, respectively. At least one of the terminals has an extending section extending over at least one of the circular grooves. A distance between the extending section and the arc-shaped holding portion of the flat conductor in the at least one circular groove is a fixed value.Type: GrantFiled: March 6, 2017Date of Patent: June 4, 2019Assignee: Chicony Power Technology Co., Ltd.Inventors: Shao-Chung Yuan, Hui-Hsin Tsai, Yin-Jao Luo, Shih-Wei Hung
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Publication number: 20180198344Abstract: A fixing device for junction wires of a stator of a motor includes a box and flat conductors. The box has circular grooves radially arranged at a side of the box and terminal accommodating grooves located at a peripheral edge at the side of the box. Each of the flat conductors has an arc-shaped holding portion and two terminals connected to an upper edge of the arc-shaped holding portion and horizontally bended. The arc-shaped holding portions are accommodated in the circular grooves. The terminals are exposed out of the circular grooves and partially accommodated in the terminal accommodating grooves, respectively. At least one of the terminals has an extending section extending over at least one of the circular grooves. A distance between the extending section and the arc-shaped holding portion of the flat conductor in the at least one circular groove is a fixed value.Type: ApplicationFiled: March 6, 2017Publication date: July 12, 2018Inventors: Shao-Chung YUAN, Hui-Hsin TSAI, Yin-Jao LUO, Shih-Wei HUNG
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Publication number: 20180191211Abstract: A motor rotor includes a body and at least one magnet. The body has an even number of protrusions. The outer contour of the cross-sections of the protrusions conforms to at least a portion of the periphery of the relation: r=k×sin ((n/d)×?), where k is related to the maximum distance between the outer contour of the cross-sections of the protrusions and the center of the body, n is related to the number of protrusions, and d is related to the curvature of the outer contour. The magnet is disposed in the body.Type: ApplicationFiled: March 13, 2017Publication date: July 5, 2018Inventors: Shih-Wei HUNG, Yin-Jao LUO, Shao-Chung YUAN
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Publication number: 20180175706Abstract: A stator assembly is used to be assembled to form a stator core. The stator assembly includes a tooth and a yoke. One end of the tooth is connected to the yoke. The yoke has an inner side, an outer side, a first coupling side, and a second coupling side. The first coupling side further includes a first engaging structure, and the second coupling side further includes a second engaging structure. The second engaging structure corresponds the first engaging structure. The outer side has a groove. The groove has a side surface and a bottom surface. An angle is defined between the side surface and the bottom surface, and the angle is in a range from 135° to 165°.Type: ApplicationFiled: February 23, 2017Publication date: June 21, 2018Inventors: Yu-Chin LIN, Shih-Wei HUNG, Shao-Chung YUAN, Yin-Jao LUO
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Patent number: 8089040Abstract: An encoder assembly includes an encoder, a fixing cover for receiving the encoder, and a protecting cover for receiving the fixing cover. The encoder includes a main body, and a trumpet-shaped rubber collar extending from a first end of the main body. The fixing cover includes a first open end and a second open end opposite to the first open end. The second open end engages with an outer side of the rubber collar. The protecting cover includes an open end and a closed end opposite to the open end. A circular protrusion extends from an inner wall of the closed end to engage with an inner side of the rubber collar.Type: GrantFiled: June 10, 2009Date of Patent: January 3, 2012Assignee: Foxnum Technology Co., Ltd.Inventors: Shao-Chung Yuan, Yin-Jao Luo, Yi-Cheng Su
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Patent number: 8061893Abstract: A testing system for testing a temperature characteristic of a first motor includes a second motor, a controller, a driver, a load, a temperature sensor, and a temperature recorder. The controller provides a drive command for the driver to drive the second motor. The second motor drives the first motor via a coupling. A current of the first motor is determined by adjusting the resistance of the load. The temperature sensor senses the temperatures of the first motor every a determined time and sends the temperatures to the temperature recorder. The temperature recorder records and transmits the temperatures to the controller for the temperature characteristic test of the first motor.Type: GrantFiled: January 15, 2009Date of Patent: November 22, 2011Assignee: Foxnum Technology Co., Ltd.Inventors: Yi-Cheng Su, Yin-Jao Luo, Shao-Chung Yuan, An-Zheng Yang, Chia-Ching Lin, Han-Chieh Chang
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Patent number: 8047719Abstract: A support device for a shaft extension of a motor, the motor including a flange facing and a shaft, the shaft not protruding outward beyond the flange facing. The support device includes a retainer and a bearing. The retainer includes a receiving chamber. The retainer is fastened to the flange facing of the motor. The bearing includes an inner hole. The bearing is received in the receiving chamber of the retainer. A shaft extension is coupled with the shaft of the motor through the inner hole of the bearing. The shaft extension is supported by the retainer and bearing.Type: GrantFiled: November 7, 2008Date of Patent: November 1, 2011Assignee: Foxnum Technology Co., Ltd.Inventors: Shao-Chung Yuan, Yin-Jao Luo, An-Zheng Yang, Yi-Cheng Su, Chia-Ching Lin
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Publication number: 20100225184Abstract: A servo motor includes an enclosure defining airflow passages in the outer surface thereof, an end cover attached to the enclosure, a rotor shaft accommodated in the enclosure and having an end protruding out of the end cover, an encoder attached to the protruding end of the rotor shaft, an encoder cover attached to the end cover and covering the encoder, a fan duct covering the end cover, and a fan attached to the fan duct. The end cover, the encoder cover, and the fan duct cooperatively define an airflow space communicating with the airflow passages of the enclosure. The encoder cover includes a guiding portion gradually shrinking toward a small end which is away from the end cover. The fan duct includes a guiding portion gradually shrinking toward an end to which the fan is attached, thereby to guide the airflow smoothly flow toward the fan.Type: ApplicationFiled: May 19, 2009Publication date: September 9, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: SHAO-CHUNG YUAN, YIN-JAO LUO
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Publication number: 20100219705Abstract: A cooling apparatus for an electric motor includes a mount to be fixed to and abutted against the electric motor, and a cooling unit installed to the mount. The mount defines at least two channels. The cooling unit connects adjacent said at least two channels to form a passage to allow a cooling fluid flowing in the passage.Type: ApplicationFiled: April 27, 2009Publication date: September 2, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: AN-ZHENG YANG, YIN-JAO LUO, SHAO-CHUNG YUAN, YI-CHENG SU, CHIA-CHING LIN
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Publication number: 20100213798Abstract: An encoder assembly includes an encoder, a fixing cover for receiving the encoder, and a protecting cover for receiving the fixing cover. The encoder includes a main body, and a trumpet-shaped rubber collar extending from a first end of the main body. The fixing cover includes a first open end and a second open end opposite to the first open end. The second open end engages with an outer side of the rubber collar. The protecting cover includes an open end and a closed end opposite to the open end. A circular protrusion extends from an inner wall of the closed end to engage with an inner side of the rubber collar.Type: ApplicationFiled: June 10, 2009Publication date: August 26, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: SHAO-CHUNG YUAN, YIN-JAO LUO, YI-CHENG SU
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Publication number: 20100162828Abstract: A testing system for testing a temperature characteristic of a first motor includes a second motor, a controller, a driver, a load, a temperature sensor, and a temperature recorder. The controller provides a drive command for the driver to drive the second motor. The second motor drives the first motor via a coupling. A current of the first motor is determined by adjusting the resistance of the load. The temperature sensor senses the temperatures of the first motor every a determined time and sends the temperatures to the temperature recorder. The temperature recorder records and transmits the temperatures to the controller for the temperature characteristic test of the first motor.Type: ApplicationFiled: January 15, 2009Publication date: July 1, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: YI-CHENG SU, YIN-JAO LUO, SHAO-CHUNG YUAN, AN-ZHENG YANG, CHIA-CHING LIN, HAN-CHIEH CHANG
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Publication number: 20100102667Abstract: A motor housing structure includes a first cover, a stator, and a second cover. The first cover is fixed to the one end of the stator. The second cover is fixed to the other end of the stator. The second cover defines a slanted annular groove. One lower end of the groove defines an opening.Type: ApplicationFiled: March 17, 2009Publication date: April 29, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: SHAO-CHUNG YUAN, YIN-JAO LUO
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Publication number: 20100061670Abstract: A support device for a shaft extension of a motor, the motor including a flange facing and a shaft, the shaft not protruding outward beyond the flange facing. The support device includes a retainer and a bearing. The retainer includes a receiving chamber. The retainer is fastened to the flange facing of the motor. The bearing includes an inner hole. The bearing is received in the receiving chamber of the retainer. A shaft extension is coupled with the shaft of the motor through the inner hole of the bearing. The shaft extension is supported by the retainer and bearing.Type: ApplicationFiled: November 7, 2008Publication date: March 11, 2010Applicant: FOXNUM TECHNOLOGY CO., LTD.Inventors: SHAO-CHUNG YUAN, YIN-JAO LUO, AN-ZHENG YANG, YI-CHENG SU, CHIA-CHING LIN
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Patent number: 6847144Abstract: A permanent magnet rotor for a brushless electric motor, comprising at least two main magnetic poles, disposed on a periphery of a rotor. Each opening angle A covers N/2 times the opening angle of each of the stator sections, with N being an odd number greater or equal to 3. A is required to be the nearest angle that is smaller than 360/P degrees, with P being the number of poles. Each of the main magnetic poles has a periphery with a central section R1 and two end sections R2 R1has an opening angle A1. The opening angle A1 covers N/2 times the opening angle of each of the stator sections, with N being an odd number greater or equal to 3. A1 is required to be smaller than the opening angle A of each of the main magnetic poles of the rotor. Each of the main magnetic poles contains a dual-plate permanent magnet.Type: GrantFiled: December 10, 2003Date of Patent: January 25, 2005Assignee: Industrial Technology Research InstituteInventor: Yin-Jao Luo
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Patent number: 6196347Abstract: A power transmission and pedal force sensing system for an electric motor includes an electric motor, a gear reduction train, a pedal force sensing system, and a power combination mechanism. These four mechanisms are concentrically, closely mounted in a single casing. The pedal force sensing system includes a pedal force transmitting sleeve having an elastic device mounted therein, and a pedal force sensing sleeve mounted outside the pedal force transmission path for converting the pedal force into an axial displacement. A proximity sensor is used to detect the axial displacement and outputs a voltage signal representing the magnitude of the pedal force. The power transmission path is shortened and only one casing is required to house all of the elements to thereby obtain a structure of a higher transmission efficiency and reduced volume and weight.Type: GrantFiled: September 22, 1998Date of Patent: March 6, 2001Assignee: Industrial Technology Research InstituteInventors: Chin-Yu Chao, Chih-Jin Wang, Yin-Jao Luo, Yuh-Wen Hwang