Patents by Inventor Kangwei Mao
Kangwei Mao 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: 10790758Abstract: Provided herein are power converter of a drive unit for an electric vehicle. The power converter includes an inverter having a first transistor, a second transistor, and a capacitor, and a laminated bus-bar having a positive bus-bar segment, a negative bus-bar segment and a phase bus-bar segment. The positive bus-bar segment, the negative bus-bar segment, and the phase bus-bar segment can be disposed about the capacitor to form a lead frame coupled with the capacitor. The lead frame can include a first lead coupled with the first transistor. The first lead can include portions of the positive bus-bar segment and the phase bus-bar segment. The lead frame can include a second lead coupled with the second transistor. The second lead can include portions of the negative bus-bar segment and the phase bus-bar segment.Type: GrantFiled: July 31, 2018Date of Patent: September 29, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Nathan Chung, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang, Jinzhu Li
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Patent number: 10784793Abstract: Provided herein are power converter of a drive unit for an electric vehicle. The power converter includes an inverter having a first transistor, a second transistor, and a capacitor, and a laminated bus-bar having a positive bus-bar segment, a negative bus-bar segment and a phase bus-bar segment. The positive bus-bar segment, the negative bus-bar segment, and the phase bus-bar segment can be disposed about the capacitor to form a lead frame coupled with the capacitor. The lead frame can include a first lead coupled with the first transistor. The first lead can include portions of the positive bus-bar segment and the phase bus-bar segment. The lead frame can include a second lead coupled with the second transistor. The second lead can include portions of the negative bus-bar segment and the phase bus-bar segment.Type: GrantFiled: August 1, 2018Date of Patent: September 22, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Nathan Chung, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang, Jinzhu Li
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Patent number: 10778117Abstract: Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.Type: GrantFiled: December 27, 2018Date of Patent: September 15, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10779445Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: GrantFiled: December 26, 2018Date of Patent: September 15, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10778118Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: GrantFiled: July 31, 2018Date of Patent: September 15, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10772242Abstract: Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.Type: GrantFiled: August 23, 2018Date of Patent: September 8, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10756649Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: GrantFiled: December 26, 2018Date of Patent: August 25, 2020Assignees: CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD., SF MOTORS, INC.Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10608423Abstract: A laminated bus bar of an inverter module to power an electric vehicle is provided. The laminated bus bar can include a first insulating layer and a current layer disposed over the first insulting layer. The current layer can include an output terminal. The laminated bus bar can include a second insulating layer disposed over the current layer. The laminated bus bar can include a third insulating layer disposed over the second insulating layer. The laminated bus bar can include a first polarity (e.g., negative) layer disposed over the third insulating layer. The first polarity layer can include a first polarity (e.g., negative) input terminal. The laminated bus bar can include a fourth insulating layer disposed over the first polarity layer. The laminated bus bar can include a second polarity (e.g., positive) layer disposed over the fourth insulating layer and that includes a second polarity (e.g., positive) input terminal.Type: GrantFiled: August 23, 2018Date of Patent: March 31, 2020Assignees: SF MOTORS, INC., CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10600578Abstract: Provided herein is a capacitor module of an inverter module of an electric vehicle. The capacitor module can include a capacitor housing. The capacitor module can include a plurality of positive terminals coupled with a first surface of the capacitor housing and extending from the first surface at a first angle. The capacitor module can include a plurality of negative terminals coupled with the first surface of the capacitor housing and extending from the first surface at the first angle. The capacitor module can include a divider coupled with the first surface of the capacitor housing. The divider can be disposed between the plurality of positive terminals and the plurality of negative terminals. The divider can electrically isolate the plurality of positive terminals from the plurality of negative terminals. The capacitor module can include a plurality of mounting holes formed on an outer surface of the capacitor housing.Type: GrantFiled: December 27, 2018Date of Patent: March 24, 2020Assignees: SF MOTORS, INC., CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.Inventors: Yunan Song, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10600577Abstract: Provided herein is a capacitor module of an inverter module of an electric vehicle. The capacitor module can include a capacitor housing. The capacitor module can include a plurality of positive terminals coupled with a first surface of the capacitor housing and extending from the first surface at a first angle. The capacitor module can include a plurality of negative terminals coupled with the first surface of the capacitor housing and extending from the first surface at the first angle. The capacitor module can include a divider coupled with the first surface of the capacitor housing. The divider can be disposed between the plurality of positive terminals and the plurality of negative terminals. The divider can electrically isolate the plurality of positive terminals from the plurality of negative terminals. The capacitor module can include a plurality of mounting holes formed on an outer surface of the capacitor housing.Type: GrantFiled: August 23, 2018Date of Patent: March 24, 2020Assignees: SF MOTORS, INC., CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.Inventors: Yunan Song, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang
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Patent number: 10594230Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: GrantFiled: July 31, 2018Date of Patent: March 17, 2020Assignees: SF Motors, Inc., CHONGQING JINKANG NEW ENERGY VEHICLE CO., LTD.Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190333702Abstract: Provided herein is a capacitor module of an inverter module of an electric vehicle. The capacitor module can include a capacitor housing. The capacitor module can include a plurality of positive terminals coupled with a first surface of the capacitor housing and extending from the first surface at a first angle. The capacitor module can include a plurality of negative terminals coupled with the first surface of the capacitor housing and extending from the first surface at the first angle. The capacitor module can include a divider coupled with the first surface of the capacitor housing. The divider can be disposed between the plurality of positive terminals and the plurality of negative terminals. The divider can electrically isolate the plurality of positive terminals from the plurality of negative terminals. The capacitor module can include a plurality of mounting holes formed on an outer surface of the capacitor housing.Type: ApplicationFiled: December 27, 2018Publication date: October 31, 2019Inventors: Yunan Song, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190333701Abstract: Provided herein is a capacitor module of an inverter module of an electric vehicle. The capacitor module can include a capacitor housing. The capacitor module can include a plurality of positive terminals coupled with a first surface of the capacitor housing and extending from the first surface at a first angle. The capacitor module can include a plurality of negative terminals coupled with the first surface of the capacitor housing and extending from the first surface at the first angle. The capacitor module can include a divider coupled with the first surface of the capacitor housing. The divider can be disposed between the plurality of positive terminals and the plurality of negative terminals. The divider can electrically isolate the plurality of positive terminals from the plurality of negative terminals. The capacitor module can include a plurality of mounting holes formed on an outer surface of the capacitor housing.Type: ApplicationFiled: August 23, 2018Publication date: October 31, 2019Inventors: Yunan Song, Kangwei Mao, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190334334Abstract: A laminated bus bar of an inverter module to power an electric vehicle is provided. The laminated bus bar can include a first insulating layer and a current layer disposed over the first insulting layer. The current layer can include an output terminal. The laminated bus bar can include a second insulating layer disposed over the current layer. The laminated bus bar can include a third insulating layer disposed over the second insulating layer. The laminated bus bar can include a first polarity (e.g., negative) layer disposed over the third insulating layer. The first polarity layer can include a first polarity (e.g., negative) input terminal. The laminated bus bar can include a fourth insulating layer disposed over the first polarity layer. The laminated bus bar can include a second polarity (e.g., positive) layer disposed over the fourth insulating layer and that includes a second polarity (e.g., positive) input terminal.Type: ApplicationFiled: August 23, 2018Publication date: October 31, 2019Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190319551Abstract: Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.Type: ApplicationFiled: December 27, 2018Publication date: October 17, 2019Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190320549Abstract: Provided herein is an inverter module to power an electric vehicle. The inverter module can include a power module or multiple power modules. The power module can include a capacitor and a heat sink coupled with the capacitor. The power module can include a ceramic plate coupled with the heat sink. The power module can include a locator having a plurality of slots and a plurality of transistors disposed within the plurality of slots. The locator and the plurality of transistors can be disposed over a first surface of the ceramic plate. The power module can include a laminated bus bar disposed over a first surface of the locator. The power module can include a gate drive printed circuit board coupled with the laminated bus bar. The power module can include a dielectric gel tray disposed over a first surface of the gate drive printed circuit board.Type: ApplicationFiled: August 23, 2018Publication date: October 17, 2019Inventors: Yunan Song, Kangwei Mao, Jinzhu Li, Colin Haag, Nathan Chung, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190296655Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: ApplicationFiled: July 31, 2018Publication date: September 26, 2019Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190296656Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: ApplicationFiled: July 31, 2018Publication date: September 26, 2019Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190296657Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: ApplicationFiled: December 26, 2018Publication date: September 26, 2019Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang
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Publication number: 20190296658Abstract: Provided herein is a power converter component to power a drive unit of an electric vehicle drive system. The power converter component includes an inverter module formed having three half-bridge modules arranged in a triplet configuration for electric vehicle drive systems. Positive inputs, negative inputs, and output terminals of the different half-bridge inverter modules are aligned with each other. The inverter module includes a positive bus-bar coupled with the positive inputs and a negative bus-bar coupled with the negative inputs of the half-bridge inverter modules. The positive bus-bar is positioned adjacent to and parallel with the negative bus-bar. The inverter module can be coupled with a drive train unit of the electric vehicle and provide three phase voltages to the drive train unit. Each of the half bridge modules can generate a single phase voltage and three half-bridge modules arranged in a triplet configuration can provide three phase voltages.Type: ApplicationFiled: December 26, 2018Publication date: September 26, 2019Inventors: Nathan Chung, Jinzhu Li, Kangwei Mao, Colin Haag, Zhong Nie, Duanyang Wang, Yifan Tang