Patents by Inventor Weiling Shi
Weiling Shi 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: 12334851Abstract: The present disclosure provides a direct drive system, a control method for the same, an electronic device and a storage medium. In the direct drive system, the plurality of primary units are designed to have the position mode and the current mode. In the position mode, a position control instruction is output according to the absolute position information of a mover on the guide rails and predetermined positions of the mover on the guide rails, in order for a respective driver to adjust current in at least one winding primary unit according to the position control instruction, to move the respective mover to a predetermined position. In the current mode, a current control instruction is output, in order for the respective driver to provide current to the at least one winding according to the current control instruction, to compensate a thrust loss occurred in movement of the respective mover.Type: GrantFiled: May 23, 2023Date of Patent: June 17, 2025Assignee: AAC Technologies (Nanjing) Co., Ltd.Inventors: Lin Qian, Shun Guo, Xueyuan Zhu, Weiling Shi
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Patent number: 12316169Abstract: The present disclosure provides a linear driving apparatus. The linear driving apparatus includes: stators; rotors slidably arranged on the stators; a driving component configured to drive the rotors to slide along an extension direction of the stators; first position feedback units provided with one first position feedback unit provided with a marking signal; and second position feedback units arranged on the stators and spaced apart. The second position feedback units is configured to read position information of the first position feedback units and read the marking signal. The linear driving apparatus in the present disclosure can simplify a manner of identifying the rotor without additional sensors, thereby reducing costs.Type: GrantFiled: July 28, 2022Date of Patent: May 27, 2025Assignee: AAC Microtech (Changzhou) Co., Ltd.Inventors: Lin Qian, Weiling Shi, Min Chen, Shun Guo, Xueyuan Zhu, Yu Huang
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Patent number: 12316188Abstract: The multi-mover direct drive transmission system includes multiple stator units, a guide rail, multiple mover units, and a controller. Each of the multiple stator units includes a stator, a winding, a photoelectric switch, a reading head, and a driver. Each of the multiple mover units includes a mover, and a magnetic steel, two stoppers, and a grating ruler. Each of the two stoppers are configured to pass and block the photoelectric switch. The grating ruler is arranged opposite to the reading head, and the reading head is configured to read information from the grating ruler in real-time. The controller is configured to obtain the reading signal and two zero signals from the photoelectric switch by the driver. Compared with the conventional art, the multi-mover direct drive transmission system of the present invention has simple structure, high positioning accuracy, and easy to use.Type: GrantFiled: May 30, 2023Date of Patent: May 27, 2025Assignee: AAC Technologies (Nanjing) Co., Ltd.Inventors: Shun Guo, Weiling Shi, Lin Qian, Xueyuan Zhu
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Patent number: 12289068Abstract: The present disclosure provides a direct drive transmission system and a control method. The direct drive transmission system includes: a base plate, guide rails, a plurality of stators, a mover, a plurality of drivers, and a controller. The plurality of stators are configured to drive the mover to slide on the guide rails. A transmission line composed of the plurality of stators is configured to have at least one low-accuracy segment and at least one high-accuracy segment connected to each other. The direct drive transmission system further includes at least one first switching signal device and a plurality of second switching signal devices. The at least one first switching signal device aligns with a respective second switching signal device, and each second switching signal device is electrically connected to a respective driver or the plurality of second switching signal devices are all electrically connected to the controller.Type: GrantFiled: June 21, 2023Date of Patent: April 29, 2025Assignee: AAC Technologies (Nanjing) Co., Ltd.Inventors: Weiling Shi, Xueyuan Zhu, Shun Guo, Lin Qian
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Patent number: 12289018Abstract: The disclosure provides a direct drive transmission system. The direct drive transmission system includes a mover unit and a stator unit driving the mover unit to move. The stator unit includes a stator assembly, two first end covers, and two first guide rails. The mover unit includes a mover assembly, two second end covers, and two second guide rails. The direct drive transmission system further includes a limiting structure. An end of the limiting structure close to each of the second end covers is located between the two second end covers. The stator assembly drives the mover assembly to cause the second guide rail to move along the first guide rail, such that the second end cover contacts a side wall of the limiting structure to realize limiting.Type: GrantFiled: May 24, 2023Date of Patent: April 29, 2025Assignee: AAC Technologies (Nanjing) Co., Ltd.Inventors: Weiling Shi, Shun Guo, Yongjian Xue
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Publication number: 20250125690Abstract: The present disclosure provides a linear driving apparatus. The linear driving apparatus includes: stators; rotors slidably arranged on the stators; a driving component configured to drive the rotors to slide along an extension direction of the stators; first position feedback units provided with one first position feedback unit provided with a marking signal; and second position feedback units arranged on the stators and spaced apart. The second position feedback units is configured to read position information of the first position feedback units and read the marking signal. The linear driving apparatus in the present disclosure can simplify a manner of identifying the rotor without additional sensors, thereby reducing costs.Type: ApplicationFiled: July 28, 2022Publication date: April 17, 2025Inventors: Lin Qian, Weiling Shi, Min Chen, Shun Guo, Xueyuan Zhu, Yu Huang
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Publication number: 20250125703Abstract: The present disclosure provides direct drive system, belongs to drive systems field. The direct drive system includes: base and slide spaced from the base, the base being provided with stator assembly, slide being provided with rotor assembly; rotor assembly including a first magnetic conductor and a plurality of magnets arranged on the first magnetic conductor; the stator assembly including second magnetic conductors and windings spaced on second magnetic conductors, windings being arranged opposite magnets, and magnetic field generated by windings covering magnets to generate electromagnetic thrust with magnet to drive the slide to move along sliding direction. Windings are spaced, and coils in each group of winding are cooperatively energized to drive rotor assembly with magnets to operate, which effectively reduce consumption of coils, reduce material costs, reduce heating quantity, reduce energy consumption of direct drive system, to improve operation efficiency of direct drive system.Type: ApplicationFiled: July 21, 2022Publication date: April 17, 2025Inventors: Weiling Shi, Yu Qin, Shun Guo, Min Chen
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Publication number: 20250125756Abstract: A method for controlling a direct drive transmission system and related devices. The method includes: S1: starting direct drive transmission system for overall zero returning; S2: reading a zero signal of the first incremental position feedback means identified by a corresponding second incremental position feedback means; S3: determining whether any actuator reads two zero signals; if yes, performing step S4; otherwise, returning to step S1; S4: determining according to a distance between two zero signals fed back by the actuator that the corresponding mover has completed zero returning, and further completing zero returning of the direct drive transmission system; and S5: acquiring, by the controller based on the direct drive transmission system after zero returning, position information of the movers, and driving the movers to move. Compared with the related art, the present disclosure has good position feedback effect, high positioning accuracy, and good drive control effect.Type: ApplicationFiled: September 9, 2022Publication date: April 17, 2025Inventors: Lin Qian, Shun Guo, Xueyuan Zhu, Min Chen, Weiling Shi, Yu Qin
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Publication number: 20250125702Abstract: The present disclosure provides direct drive transmission system, including primary assembly and secondary assembly. The primary assembly includes connection unit, first primary unit, and second primary unit. The secondary assembly includes first secondary unit and second secondary unit. The connection unit includes first and second ends opposite to each other. First primary units are sequentially distributed on first end of connection unit. Second primary units are sequentially distributed on second end of connection unit. The secondary assembly is movable relative to primary assembly. The first primary unit faces first secondary unit. The second primary unit faces second secondary unit. A first magnetic field loop is formed between first primary unit and first secondary unit. A second magnetic field loop is formed between second primary unit and second secondary unit. The direct drive transmission system is reasonable in structure design, is fixed in simple manner, and has good dynamic performance.Type: ApplicationFiled: July 21, 2022Publication date: April 17, 2025Inventors: Yu Qin, Weiling Shi, Shun Guo, Wanlun Wang
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Publication number: 20250119046Abstract: A direct-drive system, including a base provided with a guide rail; a slider arranged on the guide rail; a mover assembly including a mover arranged on the slider and a magnet arranged on an inner side wall of the mover; a stator assembly including a stator support arranged on the base and a stator connected to the stator support; and a blocking member. The stator is inserted into the mover and arranged opposite to and spaced from the magnet. The blocking member includes a first end connected to a side of the base away from the stator support and a second end obliquely extends towards the stator and spaced from the slider. The blocking member effectively prevents foreign matters from falling onto the guide rail, thereby preventing blockage of the slider by the foreign matters on the guide rail, and thus bringing a good protective effect and effectively improving an operation accuracy of the guide rail and prolonging a service life.Type: ApplicationFiled: July 20, 2022Publication date: April 10, 2025Inventors: Yu Qin, Weiling Shi, Shun Guo, Lin Qian
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Publication number: 20250119044Abstract: A direct-drive system, including a base provided with a guide rail and a stator assembly; and at least one slide spaced from the base and fixed to the base by means of the guide rail. A mover assembly arranged opposite to the stator assembly is fixed to the at least one slide, and the mover assembly interacts with the stator assembly to drive the at least one slide to slide on the guide rail. An orthographic projection of the guide rail onto the base along a sliding direction of the at least one slide falls at least partially at an outer side of the base. The guide rail structure is first contacted when the modules are spliced, so as to ensure smooth sliding of the direct-drive system and reduce the difficulty of assembly and maintenance of the system.Type: ApplicationFiled: July 20, 2022Publication date: April 10, 2025Inventors: Weiling Shi, Yu Qin, Min Chen, Xueyuan Zhu
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Publication number: 20250119045Abstract: A direct-drive system, including: a base; a mover assembly arranged on the slide; a stator assembly arranged on the base; and at least one mover protective assembly fixed to the slide and in contact with the stator assembly. An electromagnetic force is formed between the mover assembly and the stator assembly to drive the slide to slide relative to the base; and in a direction perpendicular to a sliding direction of the slide, the mover assembly and the stator assembly are opposite to and spaced from each other to form a gap. The at least one mover protective assembly is configured to enclose the gap. The at least one mover protective assembly can enclose the gap between the mover assembly and the stator assembly, so as to effectively prevent foreign matters from entering a mover air gap and thus improving reliability of the system.Type: ApplicationFiled: July 20, 2022Publication date: April 10, 2025Inventors: Yu Qin, Weiling Shi, Shun Guo, Lin Qian
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Patent number: 12237787Abstract: A method for controlling a direct drive system, including: S1: outputting, by the actuator, a current to the winding of the stator corresponding to the actuator to cause the windings to drive the mover corresponding to the windings to move in a single direction along the guide rail; S2: sensing a position of the second position feedback means through the first position feedback means, and acquiring position information of the mover relative to the stator; and S3: changing a drive mode of the actuator according to the position information, so that the actuator adjusts, according to the drive mode, magnitude of the current outputted to the windings of the stator corresponding to the actuator. The above solution can reduce a number of power modules used in the direct drive system, so as to reduce overall manufacturing and use costs of the direct drive system.Type: GrantFiled: July 28, 2022Date of Patent: February 25, 2025Assignee: AAC Microtech (Changzhou) Co., Ltd.Inventors: Min Chen, Lin Qian, Weiling Shi, Xueyuan Zhu, Shun Guo
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Patent number: 12155327Abstract: A method for controlling a multi-mover direct drive transmission system and related devices, including: S1: detecting a real-time position of the mover units movable in the feedback segments; S2: determining whether the mover unit enters junction region between the feedback and transition segments: if yes, calculating, by using preset algorithm, an electrical angle at which the mover unit moves in the transition segment, and determining real-time position of the mover unit through the electrical angle; and setting cooperative control mode of the stator windings in a range of the transition segment according to the real-time position of the mover unit; and S3: determining whether the mover unit enters the junction region between the transition segment and the feedback segment: if yes, feeding back real-time position of the mover unit through the displacement sensor of the feedback segment. The above solution has a good control effect, low costs, and low mounting requirements.Type: GrantFiled: July 28, 2022Date of Patent: November 26, 2024Assignee: AAC Microtech (Changzhou) Co., Ltd.Inventors: Min Chen, Xueyuan Zhu, Shun Guo, Lin Qian, Weiling Shi, Wanlun Wang
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Patent number: 12081149Abstract: A multi-mover direct drive transmission system, including: stator unit formed by stator segments and includes frame and coil windings; mover units movable relative to the stator unit and each includes mover slidably connected to the stator unit and movable relative to the frame, and magnet fixed to the mover; and actuators. The magnet is arranged opposite to and spaced from the coil winding, and the coil winding drives the magnet to drive the mover. The frame includes feedback segments and transition segments. The stator unit further includes hall elements. The hall element outputs a hall signal according to a magnetic field variation detected. The actuator calculates an electrical angle and calculates a drive current, the coil winding drives the magnet to move to realize position correction. The multi-mover direct drive transmission system has a simple structure, a small number of components, and is simple and easy-to-implement the motion control method.Type: GrantFiled: July 28, 2022Date of Patent: September 3, 2024Assignee: AAC Microtech (Changzhou) Co., Ltd.Inventors: Lin Qian, Yu Qin, Min Chen, Weiling Shi, Shun Guo, Xueyuan Zhu
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Publication number: 20240217095Abstract: A single axis robot includes: a base plate, a first guiding unit extending along a first direction, a first slider, a driver, a second guiding unit extending along a second direction, a second slider and a third guiding unit extending along a third direction. The first end of the first slider is connected to the first guiding unit to realize guiding fitting. The driver is connected to the first slider. The second guiding unit is provided at a second end of the first slider. A first end of the second slider and the second end of the first slider form guiding fitting. A plane of the third direction is perpendicular to a plane of the first direction. With the first and second sliders and the first, second and third guiding units, the movement along the axial direction of the driving screw is converted into movement in a direction perpendicular thereto.Type: ApplicationFiled: June 21, 2023Publication date: July 4, 2024Inventors: Chongdeng Wu, Qihuan Zhu, Xueyuan Zhu, Shun Guo, Weiling Shi
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Publication number: 20240213901Abstract: A method for controlling a multi-mover direct drive transmission system and related devices, including: S1: detecting a real-time position of the mover units movable in the feedback segments; S2: determining whether the mover unit enters junction region between the feedback and transition segments: if yes, calculating, by using preset algorithm, an electrical angle at which the mover unit moves in the transition segment, and determining real-time position of the mover unit through the electrical angle; and setting cooperative control mode of the stator windings in a range of the transition segment according to the real-time position of the mover unit; and S3: determining whether the mover unit enters the junction region between the transition segment and the feedback segment: if yes, feeding back real-time position of the mover unit through the displacement sensor of the feedback segment. The above solution has a good control effect, low costs, and low mounting requirements.Type: ApplicationFiled: July 28, 2022Publication date: June 27, 2024Inventors: Min Chen, Xueyuan Zhu, Shun Guo, Lin Qian, Weiling Shi, Wanlun Wang
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Publication number: 20240213902Abstract: A method for controlling a direct drive system, including: S1: outputting, by the actuator, a current to the winding of the stator corresponding to the actuator to cause the windings to drive the mover corresponding to the windings to move in a single direction along the guide rail; S2: sensing a position of the second position feedback means through the first position feedback means, and acquiring position information of the mover relative to the stator; and S3: changing a drive mode of the actuator according to the position information, so that the actuator adjusts, according to the drive mode, magnitude of the current outputted to the windings of the stator corresponding to the actuator. The above solution can reduce a number of power modules used in the direct drive system, so as to reduce overall manufacturing and use costs of the direct drive system.Type: ApplicationFiled: July 28, 2022Publication date: June 27, 2024Inventors: Min Chen, Lin Qian, Weiling Shi, Xueyuan Zhu, Shun Guo
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Publication number: 20240213869Abstract: The present disclosure provides direct drive system, including stator, a primary assembly, mover, secondary assembly, and first magnetic yoke. One side of stator being provided with first magnetic yoke. The primary assembly is arranged on first magnetic yoke. The mover has first support surface and second support surface. First support surface and second support surface are arranged on two opposite sides of stator. The secondary assembly is arranged on first support surface. The secondary assembly faces primary assembly, first gap is formed between secondary assembly and primary assembly. A magnetic field loop is formed among secondary assembly, primary assembly, and first magnetic yoke. The side of stator away from first magnetic yoke faces second support surface. Second support surface is to support a work table surface. The direct drive system is reasonable in structure design, can better protect primary assembly and secondary assembly, and has high stability and reliability.Type: ApplicationFiled: July 21, 2022Publication date: June 27, 2024Inventors: Yu Qin, Weiling Shi, Xueyuan Zhu, Min Chen
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Publication number: 20240213870Abstract: The disclosure provides a direct drive motor, including: a primary assembly, the primary assembly including a slide, a coil assembly fixed to the slide, and two first end covers respectively fixed to the slide; and a secondary assembly, the secondary assembly including a base arranged opposite to the slide, a yoke fixed to the base, a magnet assembly fixed to the yoke, and two second end covers respectively fixed to two opposite circumferential sides of the base. The slide is slidably supported on the base. A side of each of the second end covers close to the yoke is provided with a mounting groove recessed in a direction away from the yoke, and two opposite ends of the yoke are respectively inserted and fixed in the mounting grooves of the two second end covers.Type: ApplicationFiled: June 21, 2023Publication date: June 27, 2024Inventors: Weiling Shi, Shun Guo, Wanlun Wang