Patents by Inventor Qiu Mei LI
Qiu Mei LI 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: 10844945Abstract: The present invention relates to a ring gear and a gear reduction device. The ring gear includes an annular body with a plurality of mounting portions, and a plurality of teeth arranged on an inner circumferential surface of the annular body. The annular body and the teeth are integrally formed from powder metal, and the mounting portions and the teeth are at least partly overlapped in an axial direction of the annular body. The mounting portions are integrally formed with the annular body and the teeth, which results in concentricity between the mounting portion and the teeth being improved and cost of the ring gear being reduced. Furthermore, the mounting portions are overlapped with the teeth, which reduces the axial size of the ring gear.Type: GrantFiled: July 26, 2017Date of Patent: November 24, 2020Assignee: Johnson Electric International AGInventors: Jing Ning Ta, Lap Wah Lo, Xing Ju Yi, Qiu Mei Li
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Patent number: 10612641Abstract: The present invention relates to a ring gear and a gear reduction device. The ring gear includes an annular body with a plurality of mounting portions, and a plurality of teeth arranged on an inner circumferential surface of the annular body. The annular body and the teeth are integrally formed from powder metal, and the mounting portions and the teeth are at least partly overlapped in an axial direction of the annular body. The mounting portions are integrally formed with the annular body and the teeth, which results in concentricity between the mounting portion and the teeth being improved and cost of the ring gear being reduced. Furthermore, the mounting portions are overlapped with the teeth, which reduces the axial size of the ring gear.Type: GrantFiled: July 26, 2017Date of Patent: April 7, 2020Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Jing Ning Ta, Lap Wah Lo, Xing Ju Yi, Qiu Mei Li
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Patent number: 10536054Abstract: A mounting structure includes at least one first hole formed in a first component of the gear motor, at least one second hole formed in a second component of the gear motor, arranged coaxially with the first hole, and at least one expansion member extending into the first and second holes. The expansion member has an interference fit with one of the first and second holes, and has a transition fit with the other of the first and second holes. The present invention can effectively prevent falling off of the expansion member, and reduce the assembly difficulties of the gear motor as well as the degree of deformation of the expansion member during the assembly process.Type: GrantFiled: June 2, 2017Date of Patent: January 14, 2020Assignee: Johnson Electric International AGInventors: Jing Ning Ta, Wei Xing Mao, Qiu Mei Li, Zhi Qiang Wu, Lan Gui Xing
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Patent number: 10480619Abstract: The present invention provides a ring gear and a gear reduction device. The ring gear includes a one-piece annular body made from powder metallurgy material, and a first ring gear part and a second ring gear part formed on a surface of the annular body. The first ring gear part and the second ring gear part are arranged along an axial direction of the annular body. The ring gear has a density that is less than 92% of its theoretical density and in the range of 6.0 to 8.0 grams per cubic centimeter. The present invention further provides a mold for manufacturing the ring gear. The ring gear of the present invention includes two ring gears integrally formed at once, and the two ring gears have improved concentricity.Type: GrantFiled: July 26, 2017Date of Patent: November 19, 2019Assignee: Johnson Electric International AGInventors: Jing Ning Ta, Lap Wah Lo, Xing Ju Yi, Qiu Mei Li
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Patent number: 10443688Abstract: A driving device includes a motor and a gearbox. The gearbox includes a first sun gear, first planetary gears surrounding and engaged with the first sun gear, and a first internal gear ring surrounding and engaged with the first planetary gears. The first sun gear is coaxially fixed to a rotary shaft of the motor. Meshing planes of the first sun gear and the first planetary gears are slanted with respect to the rotary shaft. Each of the first planetary gears is subjected to an externally-exerted first force and exerts a transverse component of force toward the rotary shaft on the first sun gear. The motor structure of the driving device is simplified, which makes the driving device have a more compact structure, lighter weight and lower cost.Type: GrantFiled: February 24, 2017Date of Patent: October 15, 2019Assignee: Johnson Electric International AGInventors: James Ching Sik Lau, Jing Ning Ta, Qiu Mei Li, Bin Yu
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Patent number: 10329826Abstract: A driving mechanism drives a vehicle window to move up and down. The driving mechanism includes a housing, and a driving assembly and a transmission assembly. The driving assembly is engaged with the transmission assembly. The driving assembly is partially received in the housing. The transmission assembly includes a first transmission member connected to the driving assembly, a second transmission member engaging with the first transmission member, and a planetary gear set. The planetary gear set connects to an external device. The driving assembly drives the first transmission member which in turn drives the second transmission member to rotate. The second transmission member drives the planetary gear set which in turn drives the vehicle window to move.Type: GrantFiled: September 30, 2016Date of Patent: June 25, 2019Assignee: JOHNSON ELECTRIC INTERNATIONAL AGInventors: Yue Li, Jing Ning Ta, Yong Jun Zhao, Qiu Mei Li, Chui You Zhou, Yong Wang, Yong Li
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Patent number: 9969303Abstract: A driving device and a seat adjusting mechanism for vehicle are provided. The driving device includes a motor and a gearbox. The gearbox includes a worm and a worm gear. The worm is fixedly connected to an output shaft of the motor. The gearbox further includes first and second driving gears, and first and second driven gears. The first and second driving gears are coaxially fixed to the worm gear and located at two sides of the worm gear, respectively. The first and second driven gears are fixed coaxially with each other and engaged with the first and second driving gears, respectively. Two driving gears are arranged at the two sides of the worm gear symmetrically, and two driven gears are also arranged at the two sides of the worm gear symmetrically, which results in a compact structure and reduced volume of the driving device.Type: GrantFiled: February 24, 2017Date of Patent: May 15, 2018Assignee: JOHNSON ELECTRIC S.A.Inventors: Jing Ning Ta, Yong Jun Zhao, Qiu Mei Li
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Publication number: 20180051777Abstract: The present invention provides a ring gear and a gear reduction device. The ring gear includes a one-piece annular body made from powder metallurgy material, and a first ring gear part and a second ring gear part formed on a surface of the annular body. The first ring gear part and the second ring gear part are arranged along an axial direction of the annular body. The ring gear has a density less than 92% of its theoretical density and a mass of 6.0 to 8.0 grams per cubic millimeter. The present invention further provides a mold for manufacturing the ring gear. The ring gear of the present invention includes two ring gears integrally formed at once, and the two ring gears have improved concentricity.Type: ApplicationFiled: July 26, 2017Publication date: February 22, 2018Inventors: Jing Ning TA, Lap Wah LO, Xing Ju YI, Qiu Mei LI
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Publication number: 20180051791Abstract: The present invention relates to a ring gear and a gear reduction device. The ring gear includes an annular body with a plurality of mounting portions, and a plurality of teeth arranged on an inner circumferential surface of the annular body. The annular body and the teeth are integrally formed from powder metal, and the mounting portions and the teeth are at least partly overlapped in an axial direction of the annular body. The mounting portions are integrally formed with the annular body and the teeth, which results in concentricity between the mounting portion and the teeth being improved and cost of the ring gear being reduced. Furthermore, the mounting portions are overlapped with the teeth, which reduces the axial size of the ring gear.Type: ApplicationFiled: July 26, 2017Publication date: February 22, 2018Inventors: Jing Ning TA, Lap Wah LO, Xing Ju YI, Qiu Mei LI
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Publication number: 20170366066Abstract: A mounting structure and a gear motor are disclosed. The mounting structure includes at least one first hole formed in a first component of the gear motor, at least one second hole formed in a second component of the gear motor, arranged coaxially with the first hole, and at least one expansion member extending into the first and second holes. The expansion member has an interference fit with one of the first and second holes, and has a transition fit with the other of the first and second holes. The present invention can effectively prevent falling off of the expansion member, and reduce the assembly difficulties of the gear motor as well as the degree of deformation of the expansion member during the assembly process.Type: ApplicationFiled: June 2, 2017Publication date: December 21, 2017Inventors: Jing Ning TA, Wei Xing MAO MAO, Qiu Mei LI, Zhi Qiang WU, Lan Gui XING
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Publication number: 20170326712Abstract: A driving device includes a motor and a gearbox. The gearbox includes a sun gear, planetary gears surrounding and meshing with the sun gear, and an internal ring gear surrounding and meshing with the planetary gears. The motor is a single phase motor. The sun gear is integrally formed with a rotary shaft of the motor. A power tool is also disclosed which includes the driving device, a rotatable working head driven by the driving device, and a striking unit disposed between the driving device and the working head. By integrating the sun gear and the motor rotary shaft to form an integral gear shaft, the number of the teeth of the sun gear can be reduced to five or less. Therefore, the transmission ratio of the gearbox can be effectively increased without changing the maximum geometric outer diameter.Type: ApplicationFiled: April 24, 2017Publication date: November 16, 2017Inventors: Yue LI, Jing Ning TA, Bin YU, Qiu Mei LI
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Publication number: 20170259708Abstract: A driving device and a seat adjusting mechanism for vehicle are provided. The driving device includes a motor and a gearbox. The gearbox includes a worm and a worm gear. The worm is fixedly connected to an output shaft of the motor. The gearbox further includes first and second driving gears, and first and second driven gears. The first and second driving gears are coaxially fixed to the worm gear and located at two sides of the worm gear, respectively. The first and second driven gears are fixed coaxially with each other and engaged with the first and second driving gears, respectively. Two driving gears are arranged at the two sides of the worm gear symmetrically, and two driven gears are also arranged at the two sides of the worm gear symmetrically, which results in a compact structure and reduced volume of the driving device.Type: ApplicationFiled: February 24, 2017Publication date: September 14, 2017Inventors: Jing Ning TA, Yong Jun ZHAO, Qiu Mei LI
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Publication number: 20170254389Abstract: A driving device includes a motor and a gearbox. The gearbox includes a first sun gear, first planetary gears surrounding and engaged with the first sun gear, and a first internal gear ring surrounding and engaged with the first planetary gears. The first sun gear is coaxially fixed to a rotary shaft of the motor. Meshing planes of the first sun gear and the first planetary gears are slanted with respect to the rotary shaft. Each of the first planetary gears is subjected to an externally-exerted first force and exerts a transverse component of force toward the rotary shaft on the first sun gear. The motor structure of the driving device is simplified, which makes the driving device have a more compact structure, lighter weight and lower cost.Type: ApplicationFiled: February 24, 2017Publication date: September 7, 2017Inventors: James Ching Sik LAU, Jing Ning TA, Qiu Mei LI, Bin YU
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Publication number: 20170089117Abstract: A driving mechanism drives a vehicle window to move up and down. The driving mechanism includes a housing, and a driving assembly and a transmission assembly. The driving assembly is engaged with the transmission assembly. The driving assembly is partially received in the housing. The transmission assembly includes a first transmission member connected to the driving assembly, a second transmission member engaging with the first transmission member, and a planetary gear set. The planetary gear set connects to an external device. The driving assembly drives the first transmission member which in turn drives the second transmission member to rotate. The second transmission member drives the planetary gear set which in turn drives the vehicle window to move.Type: ApplicationFiled: September 30, 2016Publication date: March 30, 2017Inventors: Yue LI, Jing Ning TA, Chui You ZHOU, Yong WANG, Yong LI, Yong Jun ZHAO, Qiu Mei LI
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Publication number: 20170089118Abstract: A driving mechanism drives a vehicle window to move up and down. The driving mechanism includes a housing, and a driving assembly and a transmission assembly. The driving assembly is engaged with the transmission assembly. The driving assembly is partially received in the housing. The transmission assembly includes a first transmission member connected to the driving assembly, a second transmission member engaging with the first transmission member, and a planetary gear set. The planetary gear set connects to an external device. The driving assembly drives the first transmission member which in turn drives the second transmission member to rotate. The second transmission member drives the planetary gear set which in turn drives the vehicle window to move.Type: ApplicationFiled: September 30, 2016Publication date: March 30, 2017Inventors: Yue LI, Jing Ning TA, Yong Jun ZHAO, Qiu Mei LI, Chui You ZHOU, Yong WANG, Yong LI
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Publication number: 20170054353Abstract: A power tool includes a main body and a working portion. The working portion is rotatably coupled to the main body. A single phase brushless motor is mounted in the main body to drive the working portion to rotate bidirectionally. In comparison with a traditional motor, the single phase brushless motor make the power tool has a reduced size and reduced cost while ensuring the stable performance.Type: ApplicationFiled: August 18, 2016Publication date: February 23, 2017Inventors: Yue LI, Jing Ning TA, Chui You ZHOU, Qiu Mei LI, Yong WANG, Ming CHEN, Hong Liang YI, Tao ZHANG, Kwong Yip POON, Jie CHAI, Wen Liang LI, Lin Ping GUI
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Patent number: 9506539Abstract: An actuator for a vehicle door lock mechanism has a motor, a first gear, a second gear and a third gear. The motor has a shaft to which the first gear is connected. The motor rotates the first gear, which in turn drives the second gear and the third gear. A non-tooth part is formed on the second gear. A projection is formed on the third gear. Stops are arranged for stopping rotation of the third gear. When the second gear rotates to a position where the non-tooth part corresponds to the third gear, the projection is spaced from one stop by an angle. When the second gear rotates further, the gears re-mesh and the third gear rotates till the projection contacts the stop.Type: GrantFiled: January 7, 2016Date of Patent: November 29, 2016Assignee: JOHNSON ELECTRIC S.A.Inventors: Jing Ning Ta, Zhong Ping Wu, Bin Yu, Qiu Mei Li
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Publication number: 20160201773Abstract: An actuator for a vehicle door lock mechanism has a motor, a first gear, a second gear and a third gear. The motor has a shaft to which the first gear is connected. The motor rotates the first gear, which in turn drives the second gear and the third gear. A non-tooth part is formed on the second gear. A projection is formed on the third gear. Stops are arranged for stopping rotation of the third gear. When the second gear rotates to a position where the non-tooth part corresponds to the third gear, the projection is spaced from one stop by an angle. When the second gear rotates further, the gears re-mesh and the third gear rotates till the projection contacts the stop.Type: ApplicationFiled: January 7, 2016Publication date: July 14, 2016Inventors: Jing Ning TA, Zhong Ping WU, Bin YU, Qiu Mei LI
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Publication number: 20150047448Abstract: A gear includes an inner ring portion, an outer ring portion, and a number of spokes connecting the inner ring portion with the outer ring portion. An outer circumferential surface of the outer ring portion is provided with teeth. Each spoke includes a curve-shaped main portion, an inner end section at an inner end of the main portion which connects to the inner ring portion, and an outer end section at an outer end of the main portion which connects to the outer ring portion. At least one of the inner end section and outer end section is formed with a furcated structure.Type: ApplicationFiled: August 15, 2014Publication date: February 19, 2015Inventors: Jing Ning TA, Zhi Guo WANG, Qiu Mei LI, Yong Jun ZHAO