Patents by Inventor Aijuan JIN
Aijuan JIN 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: 11394278Abstract: The present invention provides a shunt wound direct-current (DC) motor driving device and electrical equipment. The shunt wound DC motor driving device provided by the present invention includes a shunt wound DC motor, a DC power supply, and a chopper that converts a constant voltage into a variable voltage based on a control signal and provides the variable voltage for the shunt wound DC motor.Type: GrantFiled: February 1, 2019Date of Patent: July 19, 2022Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan Jin, Shaolong Li
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Patent number: 11387717Abstract: The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.Type: GrantFiled: December 27, 2019Date of Patent: July 12, 2022Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan Jin, Shaolong Li
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Patent number: 11355973Abstract: The present invention provides a direct current motor, including: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole, two neighboring main poles are different in polarity, the two brushes in each pair of brushes are arranged at neighboring positions, each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, each field winding part includes m field winding units corresponding to the m pairs of main poles, respectively, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around one pair of main poles corresponding to each othType: GrantFiled: November 8, 2018Date of Patent: June 7, 2022Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong Li, Aijuan Jin
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Patent number: 11329582Abstract: The present invention provides a series shunt wound direct-current (DC) motor driving device and electrical equipment. The series shunt wound DC motor driving device provided by the present invention includes a series shunt wound DC motor, a DC power supply and a chopper.Type: GrantFiled: December 27, 2019Date of Patent: May 10, 2022Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong Li, Aijuan Jin
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Patent number: 11329581Abstract: The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment.Type: GrantFiled: December 27, 2019Date of Patent: May 10, 2022Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong Li, Aijuan Jin
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Publication number: 20220045635Abstract: The present invention provides a series shunt wound direct-current (DC) motor driving device and electrical equipment. The series shunt wound DC motor driving device provided by the present invention includes a series shunt wound DC motor, a DC power supply and a chopper.Type: ApplicationFiled: December 27, 2019Publication date: February 10, 2022Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong LI, Aijuan JIN
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Patent number: 11239775Abstract: The invention provides a separately excited direct current motor drive apparatus and electric equipment.Type: GrantFiled: December 27, 2019Date of Patent: February 1, 2022Assignee: University of Shanghai for Science and TechnologyInventors: Aijuan Jin, Shaolong Li
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Publication number: 20220029565Abstract: The present invention provides a shunt series wound direct-current (DC) motor driving device and electric equipment.Type: ApplicationFiled: December 27, 2019Publication date: January 27, 2022Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong LI, Aijuan JIN
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Publication number: 20220021320Abstract: The invention provides a separately excited direct current motor drive apparatus and electric equipment.Type: ApplicationFiled: December 27, 2019Publication date: January 20, 2022Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan JIN, Shaolong LI
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Publication number: 20220021281Abstract: The invention provides a series wound DC motor driving device and electrical equipment. The series wound DC motor driving device provided by the invention comprises a series wound DC motor, a DC power supply and a chopper, wherein the chopper comprises m chopping units; control signals comprise m unit control signals formed according to preset phase stagger rules and corresponding to the m chopping units separately, and each unit control signal comprises w switch control signals corresponding to w switch control ends in the corresponding chopping units; m pairs of power output terminals are formed at m first power output ends and m second power output ends of the chopping units correspondingly, and m pairs of external terminals of the series wound DC motor are connected with m pairs of power output terminals correspondingly one by one; m is a positive integer not smaller than 2, and w is 1, 2 or 4.Type: ApplicationFiled: December 27, 2019Publication date: January 20, 2022Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan JIN, Shaolong LI
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Publication number: 20220021282Abstract: The present invention provides a shunt wound direct-current (DC) motor driving device and electrical equipment. The shunt wound DC motor driving device provided by the present invention includes a shunt wound DC motor, a DC power supply, and a chopper that converts a constant voltage into a variable voltage based on a control signal and provides the variable voltage for the shunt wound DC motor.Type: ApplicationFiled: February 1, 2019Publication date: January 20, 2022Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan JIN, Shaolong LI
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Patent number: 11211855Abstract: The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.Type: GrantFiled: November 8, 2018Date of Patent: December 28, 2021Assignee: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan Jin, Shaolong Li
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Publication number: 20210242762Abstract: The present invention provides a direct current motor, comprising: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, including a plurality of armature windings in a predetermined connection, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole; each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, the field winding part includes k field winding units, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around the m pairs of main poles, and m is a positive integer not less than 2, n is 1 or 2, and k is a positive integer not less than 2.Type: ApplicationFiled: November 8, 2018Publication date: August 5, 2021Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan JIN, Shaolong LI
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Publication number: 20210210997Abstract: The present invention provides a direct current motor, including: a casing; m pairs of brushes fixed within the casing; a stator provided within the casing, including m main poles corresponding to the m pairs of brushes, and n field winding parts; and a rotor provided within the stator, wherein each pair of main poles includes an S-polarity main pole and an N-polarity main pole, two neighboring main poles are different in polarity, the two brushes in each pair of brushes are arranged at neighboring positions, each pair of brushes includes an S-pole corresponding brush corresponding to the S-polarity main pole, and an N-pole corresponding brush corresponding to the N-polarity main pole, each field winding part includes m field winding units corresponding to the m pairs of main poles, respectively, each field winding unit is made up of field coils formed by winding an insulated conductor strip, which is made of a metal wire coated with an insulating layer, around one pair of main poles corresponding to each othType: ApplicationFiled: November 8, 2018Publication date: July 8, 2021Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Shaolong LI, Aijuan JIN
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Patent number: 10622876Abstract: An electric drive apparatus includes a DC motor for driving the electric device; a DC power source for outputting constant-voltage DC power to the DC motor; and a chopper for converting the constant-voltage DC power into variable-voltage DC power according to a driving signal and providing the variable-voltage DC power to the DC motor. The DC motor has 2j armature winding branches, each of which consists of m windings, 2j×m commutator segments connected to the windings, and two brush sets respectively connected to two power line sets of the DC motor and in contact with the commutator segments.Type: GrantFiled: December 26, 2017Date of Patent: April 14, 2020Assignee: University of Shanghai for Science and TechnologyInventors: Aijuan Jin, Shaolong Li
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Publication number: 20190319523Abstract: A DC electric drive apparatus and an electric device.Type: ApplicationFiled: December 26, 2017Publication date: October 17, 2019Applicant: UNIVERSITY OF SHANGHAI FOR SCIENCE AND TECHNOLOGYInventors: Aijuan JIN, Shaolong LI