公开(公告)号：US11152171B2

公开(公告)日：2021-10-19

申请号：US16712720

申请日：2019-12-12

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Yi Wu ,  Yifei Wu ,  Fei Yang ,  Mingzhe Rong ,  Chunping Niu

IPC: H01H33/18 ,  H02H9/02

Abstract: There is provided a direct current breaker based on vacuum magnetic blowout transfer and a breaking method thereof. The direct current breaker includes a first connection terminal, a second connection terminal, a main current branch, a transfer branch, an energy dissipation branch and a blowout unit. The main current branch is connected between the first connection terminal and the second connection terminal. During current conduction of the direct current breaker, current flows through the main current branch. The transfer branch is connected between the first connection terminal and the second connection terminal and connected in parallel with the main current branch. The energy dissipation branch is connected between the first connection terminal and the second connection terminal and connected in parallel with the main current branch and the transfer branch. The blowout unit is arranged between the main current branch and the transfer branch.

公开(公告)号：US11018575B2

公开(公告)日：2021-05-25

申请号：US16712704

申请日：2019-12-12

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Yifei Wu ,  Yi Wu ,  Fei Yang ,  Chunping Niu ,  Mingzhe Rong

IPC: H02M1/34 ,  H02H3/08 ,  H02M3/335

Abstract: The present invention discloses a semiconductor assembly. The semiconductor assembly comprises a fully controlled power electronic device and a snubber circuit, wherein the snubber circuit is connected to the fully controlled power electronic device in parallel; the snubber circuit comprises a capacitor (C), an inductor (L), a resistor (R), a diode (D) and a half controlled power electronic device (A1); the inductor (L) and the half controlled power electronic device (A1) are connected in series and are together connected to the resistor (R) in parallel; and the diode (D) and the resistor (R) are connected in parallel and are together connected to the capacitor (C) in series.

公开(公告)号：US11980101B2

公开(公告)日：2024-05-07

申请号：US17858829

申请日：2022-07-06

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Hailong He ,  Chunping Niu ,  Hongrui Ren ,  Yi Wu ,  Mingzhe Rong

IPC: H10N10/854 ,  H10N10/17 ,  H10N10/81

CPC classification number: H10N10/854 ,  H10N10/17 ,  H10N10/81

Abstract: Disclosed are a thermoelectric device and a manufacturing mold and manufacturing method thereof. The thermoelectric device includes at least one set of thermoelectric arm unit, wherein a first thermoelectric arm is provided with a first upper surface and a first lower surface opposite to the first upper surface; a second thermoelectric arm is provided with a second upper surface and a second lower surface opposite to the second upper surface; the second thermoelectric arm is seamlessly bonded with the first thermoelectric arm via an insulating adhesive layer; the first upper surface is flush with the second upper surface, and a first spacing groove is formed between adjacent positions of the first upper surface and the second upper surface; the first lower surface is flush with the second lower surface, and a second spacing groove is formed between adjacent positions of the first lower surface and the second lower surface.

公开(公告)号：US11443909B2

公开(公告)日：2022-09-13

申请号：US16712722

申请日：2019-12-12

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Mingzhe Rong ,  Yifei Wu ,  Fei Yang ,  Yi Wu ,  Chunping Niu

IPC: H01H33/68 ,  H02H9/04 ,  H01H33/22 ,  H01H33/42

Abstract: The present disclosure discloses a liquid arc extinguish chamber for direct current breaking. The liquid arc extinguish chamber for direct current breaking includes a cavity, a fixed contact and a moving contact. A liquid medium is sealed in the cavity. The fixed contact is hermetically fixed in the cavity. One end of the fixed contact is fixed in the cavity, and the other end of the fixed contact is connected with an outlet terminal A1. The moving contact is movably sealed in the cavity. One end of the moving contact may adjacently abut against or be in contact with the fixed contact, and the other end of the moving contact is connected with an outlet terminal A2.

公开(公告)号：US20200343807A1

公开(公告)日：2020-10-29

申请号：US16712704

申请日：2019-12-12

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Yifei Wu ,  Yi Wu ,  Fei Yang ,  Chunping Niu ,  Mingzhe Rong

IPC: H02M1/34 ,  H02M3/335 ,  H02H3/08

Abstract: The present invention discloses a semiconductor assembly. The semiconductor assembly comprises a fully controlled power electronic device and a snubber circuit, wherein the snubber circuit is connected to the fully controlled power electronic device in parallel; the snubber circuit comprises a capacitor (C), an inductor (L), a resistor (R), a diode (D) and a half controlled power electronic device (A1); the inductor (L) and the half controlled power electronic device (A1) are connected in series and are together connected to the resistor (R) in parallel; and the diode (D) and the resistor (R) are connected in parallel and are together connected to the capacitor (C) in series.

公开(公告)号：US10381819B2

公开(公告)日：2019-08-13

申请号：US15494166

申请日：2017-04-21

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Yifei Wu ,  Mingzhe Rong ,  Fei Yang ,  Yi Wu ,  Chunping Niu

IPC: H02H3/087 ,  H01H9/54 ,  H01H33/14 ,  H01H33/59

Abstract: The present invention provides a DC circuit breaker combining magnetic induction transfer and resistance current limiting, the circuit breaker comprising: a main current circuit, a current-limiting branch, a breaking branch, and an energy dissipation branch; the current-limiting branch and the breaking circuit each comprises a magnetic induction transfer module; an inductor in the magnetic induction transfer module of the current-limiting branch and a branch inductor in the current-limiting branch are coupled to form a mutual inductor; an inductor in the magnetic induction transfer module of the breaking branch and a second inductor in the transfer current loop are coupled to form a mutual inductor. The present invention can limit the current rising speed and amplitude and completely turned off the short-circuit current, thereby reducing the size and manufacturing cost of the circuit breaker. The main loop capacitance needs not be pre-charged; isolation between a secondary charging circuit and the main loop is realized; the discharging capacitance of the magnetic induction transfer modules adopt a bridge structure, which may two-way limit and break the fault current.

公开(公告)号：US11289280B2

公开(公告)日：2022-03-29

申请号：US16858314

申请日：2020-04-24

Applicant: Xi'an Jiaotong University ,  Huawei Technologies Co., Ltd.

Inventor： Chunping Niu ,  Yi Wu ,  Xufeng Kang ,  Fei Yang ,  Mingzhe Rong ,  Guangchao Yan ,  Qingyin Fang

IPC: H01H1/54 ,  H01H50/18 ,  H01H50/36 ,  H01H50/44 ,  H01H50/58

Abstract: A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.

公开(公告)号：US20200343062A1

公开(公告)日：2020-10-29

申请号：US16712720

申请日：2019-12-12

Applicant: XI'AN JIAOTONG UNIVERSITY

Inventor： Yi Wu ,  Yifei Wu ,  Fei Yang ,  Mingzhe Rong ,  Chunping Niu

IPC: H01H33/18 ,  H02H9/02

Abstract: The present disclosure discloses a direct current breaker based on vacuum magnetic blowout transfer and a breaking method thereof. The direct current breaker includes a first connection terminal, a second connection terminal, a main current branch, a transfer branch, an energy dissipation branch and a blowout unit. The main current branch is connected between the first connection terminal and the second connection terminal. During current conduction of the direct current breaker, current flows through the main current branch. The transfer branch is connected between the first connection terminal and the second connection terminal and connected in parallel with the main current branch. The energy dissipation branch is connected between the first connection terminal and the second connection terminal and connected in parallel with the main current branch and the transfer branch. The blowout unit is arranged between the main current branch and the transfer branch.

公开(公告)号：US09692225B2

公开(公告)日：2017-06-27

申请号：US14157777

申请日：2014-01-17

Applicant: Xi'an Jiaotong University

Inventor： Yi Wu ,  Mingzhe Rong ,  Fei Yang ,  Yifei Wu ,  Hao Sun ,  Chunping Niu

IPC: H02H9/00 ,  H02H3/087 ,  H01H9/54 ,  H01H33/59

CPC classification number: H02H3/087 ,  H01H9/548 ,  H01H33/596

Abstract: A hybrid DC breaker, comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein the main current circuit, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.

公开(公告)号：US09640973B2

公开(公告)日：2017-05-02

申请号：US14157765

申请日：2014-01-17

Applicant: Xi'an Jiaotong University

Inventor： Mingzhe Rong ,  Yi Wu ,  Chunping Niu ,  Yifei Wu ,  Hao Sun ,  Fei Yang

IPC: H02H9/00 ,  H02H3/087 ,  H02H7/22

CPC classification number: H02H3/087 ,  H02H7/222 ,  Y10T307/747

Abstract: A hybrid high-voltage DC breaker, consists of a plurality of completely identical breaker modules connected in series. Each of the breaker modules comprises a main current circuit, a transfer current circuit, an over-voltage limiting circuit and a control system, wherein a high-speed mechanical switch, the transfer current circuit and the over-voltage limiting circuit are connected in parallel. The transfer current circuit consists of circuits 1-4, wherein the circuit 1 and the circuit 4 are connected in series at first and then connected with the main current circuit in parallel; a pre-charged capacitor is connected with the circuit 4 in parallel after being connected with the circuit 3 in series; and, one end of the circuit 2 is connected with the left end of the main current circuit while the other end thereof is connected with a connection point of the pre-charged capacitor and the circuit 3.