Patents by Inventor Kaiyuan Cao
Kaiyuan Cao 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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Publication number: 20230392655Abstract: A brake apparatus, a motor, and a robot. The brake apparatus includes a first ring connected to a shaft and being rotatable together with the shaft. Wherein the first ring includes a first set of magnets. The brake apparatus also includes a second ring, which is spaced apart from the first ring by a gap, and includes a second set of magnets, the second set of magnets being magnetically coupled to the first set of magnets such that the second ring tends to rotate along with the first ring. The brake apparatus includes a first member connected to the second ring and being rotatable together with the second ring; and a second member being switchable between a first state and a second state. An impact force will not be transmitted to the shaft when the shaft is rotating, and thus a damping effect can be achieved during braking.Type: ApplicationFiled: January 22, 2021Publication date: December 7, 2023Applicant: ABB Schweiz AGInventors: Jiafan Zhang, Kaiyuan Cao
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Patent number: 10661437Abstract: A stopper apparatus for robot rotary joint, for limiting the rotation angle of a turning shaft. The stopper apparatus includes: a rotary protrusion, fixed to the shaft and extended from an outer circumference surface of the shaft; a ring-like orbit, fixed to a mounting housing of the robot rotary joint, inserting the shaft therein; a first slider and a second slider, rotatably accommodated in the orbit and able to push each other to rotate; a stop protrusion, fixed to the housing of a robot rotary joint and extended in the direction of the center of the shaft; the rotary protrusion is able to directly push the second slider to rotate, while it is not able to directly push the first slider to rotate; the shaft, the rotary protrusion and the second slider cannot be obstructed by the stop protrusion when rotate, while the first slider is able to be obstructed by the stop protrusion when rotate, thereby the relative rotation between the shaft and the housing can be stopped.Type: GrantFiled: April 25, 2018Date of Patent: May 26, 2020Assignee: ABB Schweiz AGInventors: Jiajie Sha, Xiaodong Cao, Kaiyuan Cao, Yun Ha, Zhu Zhu
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Patent number: 10647009Abstract: The present application discloses a routing unit. A routing unit comprises a first rotation portion, a second rotation portion and one or more baffles; and the routing unit is divided into two or more spaces by the baffles, thereby each space is capable of respectively enclosing a single member therein; wherein the first rotation portion rotates with respect to the second rotation portion; and a first portion of each single member is connected to the first rotation portion and a second portion of each member is connected to the second rotation portion. The present application also provides a rotary joint comprising the routing unit and a robot comprising the rotary joint. Compared with the existing prior arts, embodiments of the proposed solution are compact, easy for assembly or disassembly, and enable a large rotation range.Type: GrantFiled: March 24, 2017Date of Patent: May 12, 2020Assignee: ABB Schweiz AGInventors: Kaiyuan Cao, Jianqiang Jia, Xiaodong Cao, Huafeng Mao
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Patent number: 10632630Abstract: A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.Type: GrantFiled: April 2, 2018Date of Patent: April 28, 2020Assignee: ABB Schweiz AGInventors: Kaiyuan Cao, Xiaodong Cao, Yun Ha, Zhu Zhu, Jiajie Sha
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Patent number: 10603801Abstract: The present application discloses a protection apparatus. The protection apparatus is connected to an end effector which includes a casting, a fixed part fixed to the casting, a rotational part rotatable relative to the fixed part, and a sealing part provided in a circumference of the rotational part. The protection apparatus comprises a cover, an annular elastically deformable sealing member and a fixing member; the sealing member is partly accommodated between the cover and the rotational part; the cover is attached to the fixed part, the cover being adapted to cover the exterior of the fixed part by the fixing member, so as to prevent the fixed part from being exposed to an exterior; and the cover and the sealing member are configured to jointly cover the sealing part to prevent the sealing part from being exposed to an exterior. The present invention also provides an end effector and a robot.Type: GrantFiled: May 31, 2017Date of Patent: March 31, 2020Assignee: ABB Schweiz AGInventors: Zhu Zhu, Xiaodong Cao, Yun Ha, Kaiyuan Cao
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Publication number: 20190118374Abstract: A stopper apparatus for robot rotary joint, for limiting the rotation angle of a turning shaft. The stopper apparatus includes: a rotary protrusion, fixed to the shaft and extended from an outer circumference surface of the shaft; a ring-like orbit, fixed to a mounting housing of the robot rotary joint, inserting the shaft therein; a first slider and a second slider, rotatably accommodated in the orbit and able to push each other to rotate; a stop protrusion, fixed to the housing of a robot rotary joint and extended in the direction of the center of the shaft; the rotary protrusion is able to directly push the second slider to rotate, while it is not able to directly push the first slider to rotate; the shaft, the rotary protrusion and the second slider cannot be obstructed by the stop protrusion when rotate, while the first slider is able to be obstructed by the stop protrusion when rotate, thereby the relative rotation between the shaft and the housing can be stopped.Type: ApplicationFiled: April 25, 2018Publication date: April 25, 2019Inventors: Jiajie Sha, Xiaodong Cao, Kaiyuan Cao, Yun Ha, Zhu Zhu
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Patent number: 10112311Abstract: Disclosed is a wiring unit having a main portion of a flexible printed circuit (FPC) board therein. Said rotary joint further comprises a protective unit fixed to said wiring unit, in which an end portion of said FPC board is connected to a group of cables. Also disclosed is a robot comprising said rotary joint. Compared with the existing prior arts, the proposed solutions prevent the damage of FPC during assembly and/or disassembly of robots, while not losing compactness.Type: GrantFiled: May 26, 2016Date of Patent: October 30, 2018Assignee: ABB Schweiz AGInventors: Tao Feng, Kaiyuan Cao, Yun Ha
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Publication number: 20180222063Abstract: A robot joint and a robot using the robot joint is provided. The robot joint includes a first part and a second part configured to be rotatable with each other around a joint axis. A flexible printed circuit board is further included with a first fixing point and a second fixing point respectively fastened to the first part and the second part. The flexible printed circuit board is spiral-shaped prior to bending. With the relative rotation of the first part and the second part, the flexible printed circuit board is bent at various bending portions. This makes the robot joint more compact with a larger rotation range and a long lifetime in a cost effective way.Type: ApplicationFiled: April 2, 2018Publication date: August 9, 2018Inventors: Kaiyuan Cao, Xiaodong Cao, Yun Ha, Zhu Zhu, Jiajie Sha
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Publication number: 20170266820Abstract: The present application discloses a protection apparatus, The protection apparatus is connected to an end effector which includes a casting, a fixed part fixed to the casting, a rotational part rotatable relative to the fixed part, and a sealing part provided in a circumference of the rotational part. The protection apparatus comprises a cover, an annular elastically deformable sealing member and a fixing member; the sealing member is partly accommodated between the cover and the rotational part; the cover is attached to the fixed part, the cover being adapted to cover the exterior of the fixed part by the fixing member, so as to prevent the fixed part from being exposed to an exterior; and the cover and the sealing member are configured to jointly cover the sealing part to prevent the sealing part from being exposed to an exterior. The present invention also provides an end effector and a robot.Type: ApplicationFiled: May 31, 2017Publication date: September 21, 2017Inventors: Zhu Zhu, Xiaodong Cao, Yun Ha, Kaiyuan Cao
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Publication number: 20170197319Abstract: The present application discloses a routing unit. A routing unit comprises a first rotation portion, a second rotation portion and one or more baffles; and the routing unit is divided into two or more spaces by the baffles, thereby each space is capable of respectively enclosing a single member therein; wherein the first rotation portion rotates with respect to the second rotation portion; and a first portion of each single member is connected to the first rotation portion and a second portion of each member is connected to the second rotation portion. The present application also provides a rotary joint comprising the routing unit and a robot comprising the rotary joint. Compared with the existing prior arts, embodiments of the proposed solution are compact, easy for assembly or disassembly, and enable a large rotation range.Type: ApplicationFiled: March 24, 2017Publication date: July 13, 2017Inventors: Kaiyuan Cao, Jianqiang Jia, Xiaodong Cao, Huafeng Mao
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Publication number: 20160271808Abstract: The present invention discloses a rotary joint, comprises a wiring unit having a main portion of a flexible printed circuit (FPC) board therein. Said rotary joint further comprises a protective unit fixed to said wiring unit, in which an end portion of said FPC board is connected to a group of cables. The present application also provides a robot comprising said rotary joint. Compared with the existing prior arts, the proposed solutions prevent the damage of FPC during assembly and/or disassembly of robots, while not losing compactness.Type: ApplicationFiled: May 26, 2016Publication date: September 22, 2016Inventors: Tao Feng, Kaiyuan Cao, Yun Ha
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Patent number: D776735Type: GrantFiled: July 15, 2014Date of Patent: January 17, 2017Assignee: ABB TECHNOLOGY LTD.Inventors: Zhu Zhu, Yongzhi Huang, Tao Feng, Xiaodong Cao, Hui Yu, Kaiyuan Cao, Jingjing Zhou
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Patent number: D800813Type: GrantFiled: July 15, 2016Date of Patent: October 24, 2017Assignee: ABB Schweiz AGInventors: Zhu Zhu, Yongzhi Huang, Tao Feng, Xiaodong Cao, Hui Yu, Kaiyuan Cao, Jingjing Zhou
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Patent number: D847890Type: GrantFiled: August 25, 2016Date of Patent: May 7, 2019Assignee: ABB Schweiz AGInventors: Bin Liu, Hui Yu, Jing Wu, Kaiyuan Cao, Said Zahrai, Heng Xie, Bing Xu