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公开(公告)号：US11418023B2
公开(公告)日：2022-08-16
申请号：US16535112
申请日：2019-08-08
发明人： Youjun Xiong , Sheng Zhou , Malin Wang , Wenhua Fan , Jianxin Pang
摘要： A current protection circuit for a high voltage system includes: a power supply module to supply power to a load through a high voltage bus and a low voltage bus; a detection module connected to the high voltage bus and used to detect a value of current flowing through the high voltage bus; a signal processing module electrically connected to the detection module and used to amplify the current flowing through the high voltage bus; and a control module electrically connected to the signal processing module, the power supply module, and the load, and used to disconnect the load from the power supply module or perform current limiting for the load when the value of the amplified current exceeds a preset threshold.
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公开(公告)号：US20210347038A1
公开(公告)日：2021-11-11
申请号：US16902205
申请日：2020-06-15
发明人： CHENGKUN ZHANG , Liang Huang , Jianbo Li , Jingchen Li , Hongyu Ding , Wenhua Fan , Won Suk You , Raymond Ma , Muhammed Rasid Pac , Huan Tan , Youjun Xiong
摘要： A mechanical arm includes a first link connectable to a surface, a second link, a third link, a fourth link, and a fifth link that are coupled to one another in series, and an end effector connectable to the fifth link. The end effector is rotatable about an axis of rotation same as an axis of rotation of the fourth link, and rotatable about an axis of rotation orthogonal to the axis of rotation of the fourth link. The first link, the second link, the third link, the fourth link, and the fifth link are collectively structured and configured to rotate such that the end effector is actuatable to a workspace under the surface.
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公开(公告)号：US20210333082A1
公开(公告)日：2021-10-28
申请号：US16626519
申请日：2018-12-29
发明人： Xi Bai , Wenhua Fan , Malin Wang , Youjun Xiong
IPC分类号： G01B5/24 , H02P21/18 , G05B19/416
摘要： The present invention provides a rotation angle detection method and device thereof. The method includes calculating an estimated value of a rotation angle of a motor shaft during rotation according to a second rotation angle; determining an actual range of the rotation angle according to the estimated value of the rotation angle and a detection error of the second angle sensor; determining optional values of the rotation angle based on a relative relationship between a first rotation angle and the estimated value; determining an actual rotation angle of the motor shaft, based on a value falling within the actual range of the rotation angle among the optional values, and determining an actual rotation angle of the output shaft according to the actual rotation angle of the motor shaft. The present invention can improve the measurement accuracy of the rotation angles of the output shaft of the rotating mechanism.
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4.发明授权公开(公告)号：US11110607B2
公开(公告)日：2021-09-07
申请号：US16535108
申请日：2019-08-08
发明人： Youjun Xiong , Hanyu Sun , Lifu Zhang , Wenhua Fan , Zhongliang Wang , Yongping Zeng , Jianxin Pang
摘要： The present disclosure provides a servo output shaft angle calibration method and a robot using the same. In the method, when a servo output shaft rotational angle calibration instruction is obtained, an output shaft of a servo is controlled to move in a preset rotational direction, a current angle of the output shaft of the servo is obtained when it detects that the output shaft of the servo has rotated to an end point and has a stalling, and then a preset end point angle is updated as the current angle of the output shaft of the servo, so as to take the current angle of the output shaft of the servo as the new end point angle, thereby realizing the calibration of the end point angle of the output shaft of the servo. In this manner, the entire calibration process requires no manual intervention.
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公开(公告)号：US10727821B2
公开(公告)日：2020-07-28
申请号：US16509515
申请日：2019-07-12
发明人： Youjun Xiong , Lifu Zhang , Wenhua Fan , Hanyu Sun
IPC分类号： H03K3/00 , H03K3/3565 , H03K5/24
摘要： The present disclosure provides a transmission hysteresis detecting method and apparatus. The method includes: transmitting a forward rotational instruction and a reverse rotational instruction to a motor of the servo; storing motor end positions of the motor and output shaft end positions of an output shaft corresponding to the motor in a forward rotational cycle and a reverse rotational cycle, respectively; generating first position data based on the motor end positions and the corresponding output shaft end positions in the forward rotational cycle; generating second position data based on the motor end positions and the corresponding output shaft end positions in the reverse rotational cycle; and calculating a transmission hysteresis of the servo based on the first position data and the second position data. The technical solutions of the present disclosure only needs to obtain the position data of one forward rotational cycle and one reverse rotational cycle.
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公开(公告)号：US20230415354A1
公开(公告)日：2023-12-28
申请号：US18243665
申请日：2023-09-08
发明人： ZHONGKUI HUANG , Ming Chen , Qixiang Luo , Hongyu Ding , Zheng Xie , Wenhua Fan
CPC分类号： B25J15/0009 , B25J15/022 , B25J15/12
摘要： A linkage mechanism includes: a base member; a first link rotatably connected to the base member, the first link defining a first arc-shaped guide groove centered on a pivot axis about which the first link rotates relative to the base member; a second link rotatably connected to the first link; a connecting member rotatably connected to the base member and the second link; an actuating mechanism including a linear actuator and a transmission member that is driven by the linear actuator, the transmission member having a first end rotatably connected to the output shaft, and a second end slidably received in the first arc-shaped guide groove. When the linear actuator drives the connecting member to extend and move, the second end of the transmission member abuts against one end of the first arc-shaped guide groove, which drives the first link to rotate relative to the base member.
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公开(公告)号：US10962109B2
公开(公告)日：2021-03-30
申请号：US16447982
申请日：2019-06-21
发明人： Youjun Xiong , Wenhua Fan , Zhongliang Wang , Hanyu Sun
摘要： A servo includes a motor having a rotating shaft, an output shaft disposed apart from the rotating shaft, a transmission mechanism to transmit mechanical power from the motor to the output shaft, a circuit board, a first detected member fixed to an end of the rotating shaft, a second detected member fixed to an end of the output shaft adjacent to the circuit board; and a first detecting member and a second detecting member mounted on the circuit board and configured to respectively detect rotational angles of the rotating shaft and the output shaft, based on changes caused by rotation of the first detected member and the second detected member.
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8.发明授权公开(公告)号：US10960319B2
公开(公告)日：2021-03-30
申请号：US16727969
申请日：2019-12-27
发明人： Yongping Zeng , Wei He , Wenhua Fan , Zhongliang Wang , Youjun Xiong
摘要： A building element for a modular device includes a male connector comprising M first magnets, a first ground terminal, a first detection terminal, a first power terminal, and a first signal terminal; and a female connector comprising M second magnets that are magnetically attractable to the first magnets, N second ground terminals, O second detection terminals, P second power terminals, and a second signal terminal. When the male connector of one building element is mechanically connected to the female connector of another building element, the first ground terminal, the first detection terminal, the first power terminal and the first signal terminal of the male connector of the one of two building elements respectively come into contact with one of the second ground terminals, one of the second detection terminals, one of the second power terminals, and the second signal terminal of the other one of the two building elements.
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公开(公告)号：US20200206935A1
公开(公告)日：2020-07-02
申请号：US16508335
申请日：2019-07-11
发明人： YOUJUN XIONG , Hanyu Sun , Wenhua Fan , Lifu Zhang , Zhongliang Wang , Jianxin Pang
摘要： The present disclosure provides a servo calibration method as well as an apparatus and a robot using the same. The method includes: obtaining data of a position sensor on a motor shaft of the servo; obtaining data of a position sensor on an output shaft of the servo; determining whether a clutch protection has been performed on the servo based on data of the position sensor on the motor shaft and data of the position sensor on the output shaft; and calibrating a position of the motor shaft based on the data of the position sensor on the output shaft, if the clutch protection has been performed on the servo. Through the present disclosure, the problem in the prior art that the process of the calibration is cumbersome can be solved.
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10.发明申请公开(公告)号：US20200206646A1
公开(公告)日：2020-07-02
申请号：US16727969
申请日：2019-12-27
发明人： Yongping Zeng , Wei He , Wenhua Fan , Zhongliang Wang , Youjun Xiong
摘要： A building element for a modular device includes a male connector comprising M first magnets, a first ground terminal, a first detection terminal, a first power terminal, and a first signal terminal; and a female connector comprising M second magnets that are magnetically attractable to the first magnets, N second ground terminals, O second detection terminals, P second power terminals, and a second signal terminal. When the male connector of one building element is mechanically connected to the female connector of another building element, the first ground terminal, the first detection terminal, the first power terminal and the first signal terminal of the male connector of the one of two building elements respectively come into contact with one of the second ground terminals, one of the second detection terminals, one of the second power terminals, and the second signal terminal of the other one of the two building elements.
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