公开(公告)号：US20210215761A1

公开(公告)日：2021-07-15

申请号：US16744109

申请日：2020-01-15

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wei-Min Hsiao ,  Shih-Chang Tseng ,  Kuo-Kuang Jen ,  Gwo-Huei You ,  Chih-Hsien Chung

IPC: G01R31/364 ,  G01R31/36 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.

公开(公告)号：US10807487B2

公开(公告)日：2020-10-20

申请号：US15836951

申请日：2017-12-11

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chi-Sheng Wu ,  Chih-Hsien Chung ,  Hsuang-Chang Chiang ,  Tsang-Li Tai

IPC: B60L58/22 ,  B60L53/30 ,  H02J7/00

Abstract: A battery management and balance circuit comprises multiple battery group balance circuits, multiple battery module balance circuits and a battery management unit. The battery group balance circuits connect to battery groups for executing first charge or discharge command. The battery management unit connect to the battery group balance circuits and the battery module balance circuits for generating the first and second charge or discharge commands to the battery module balance circuits. A battery system and a battery management and balance circuit method is also introduced.

公开(公告)号：US09660515B1

公开(公告)日：2017-05-23

申请号：US14971008

申请日：2015-12-16

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Chi-Sheng Wu ,  Chih-Hsien Chung ,  Hsuang-Chang Chiang ,  Tsang-Li Tai

IPC: H02M1/14 ,  H02M3/335

CPC classification number: H02M1/14 ,  H02M3/33507 ,  H02M3/3372 ,  H02M7/48 ,  H02M2001/007

Abstract: A control method for reducing second-order ripple is adapted to reduce second-order ripple on an input side of a DC-DC conversion device, wherein the input side of the DC-DC conversion device is coupled to a preceding voltage supply device, and an output side of the DC-DC conversion device is coupled to a DC-AC transforming device, characterized in that a voltage control device for controlling the preceding voltage supply device is designed according to a transfer function, and the transfer function is adjusted and controlled with an output voltage of the DC-DC conversion device and an amplitude voltage of pulse width modulation to reduce second-order ripple of an input voltage input to the input side of the DC-DC conversion device, thereby dispensing the need to increase circuits or increase capacitance of components and cutting costs.

公开(公告)号：US11658370B2

公开(公告)日：2023-05-23

申请号：US17190437

申请日：2021-03-03

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Wei-Min Hsiao ,  Chih-Hsien Chung ,  Gwo-Huei You ,  Kuo-Kuang Jen

IPC: H01M50/583 ,  G01R31/385 ,  H01M10/42 ,  G01R31/36

CPC classification number: H01M50/583 ,  G01R31/3644 ,  G01R31/385 ,  H01M10/425 ,  H01M2010/4271

Abstract: A safety protection device for a battery test system includes a system device, an alternating current changeover switch and a direct current changeover switch. The system device is coupled to a load device. One terminal of the AC changeover switch is coupled to an AC source, the other terminal of the AC changeover switch is coupled to the system device. One terminal of the DC changeover switch is coupled to a battery pack, the other terminal of the DC changeover switch is coupled to the system device. The system device detects in real time a plurality of sets of detection information of the battery pack, performs a plurality of determinations on the plurality of sets of detection information to obtain a plurality of sets of determination information. The system device respectively switches the AC changeover switch and DC changeover switch according to the plurality of sets of determination information.

公开(公告)号：US10263302B1

公开(公告)日：2019-04-16

申请号：US15832995

申请日：2017-12-06

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Fu-Min Fang ,  Chih-Hsien Chung ,  Kuo-Kuang Jen ,  Hsin-Chi Chen

IPC: H01M4/02 ,  H01M10/6556 ,  H01M10/625 ,  H01M2/10

Abstract: A baffle structure for heat dissipation, mounted on an electric vehicle on top of which a battery pack is mounted, includes a base, a plurality of baffle fins and a mask. The base is connected to the battery pack. The baffle fins are disposed on the base. The baffle fins each have a first end and a second end. The mask covers the baffle fins. The mask includes at least an air inlet and at least an air outlet which correspond in position to the first and second ends, respectively. The baffle structure guides hot air out, takes up no space inside the electric vehicle, dispenses with a need to be connected to any external cooling system, and saves electrical power supplied by the battery pack.

公开(公告)号：US11675018B1

公开(公告)日：2023-06-13

申请号：US17564264

申请日：2021-12-29

Applicant: NATIONAL CHUNG SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Dao-Qin Lin ,  Wei-Min Hsiao ,  Shih-Chang Tseng ,  Chih-Hsien Chung ,  Gwo-Huei You ,  Kuo-Kuang Jen

IPC: G01R31/389 ,  G01K13/00 ,  G01R31/367 ,  G01R27/02 ,  G01N33/00

CPC classification number: G01R31/389 ,  G01K13/00 ,  G01N33/0027 ,  G01R27/02 ,  G01R31/367

Abstract: A portable battery detection device includes a battery data receiving module for receiving battery data, a temperature measurement module for measuring battery temperature, a gas measurement module for measuring discharged gas, an insulation resistance measurement module for measuring insulation resistance, a serial impedance measurement module for measuring serial impedance, a data acquisition module for receiving various data sent by the temperature measurement module and the gas measurement module, an electric meter module for measuring DC voltage, current, and impedance, the data integration module for receiving data transmitted by the battery data receiving module, the electric meter module, and the insulation resistance measurement module, and then integrating the data to the processor module, and the processor module for using data received from the data integration module, the data acquisition module, and the serial impedance measurement module to transmit data, control, and manage the operation of the portable battery detection device.

公开(公告)号：US11169212B2

公开(公告)日：2021-11-09

申请号：US16744109

申请日：2020-01-15

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Wei-Min Hsiao ,  Shih-Chang Tseng ,  Kuo-Kuang Jen ,  Gwo-Huei You ,  Chih-Hsien Chung

IPC: G01R31/364 ,  G01R31/36 ,  H01M10/42 ,  H01M10/48

Abstract: The present invention discloses an external battery short-circuit testing device, configured to perform short-circuit test on a battery pack under test. The external battery short-circuit testing device comprises a plurality of fuses; a Hall current transducer, coupled to the plurality of fuses; a current meter, coupled to the Hall current transducer and the battery pack under test; a voltmeter, coupled to the battery pack under test; a variable resistor, coupled to the Hall current transducer; an electromagnetic switch, coupled to the variable resistor and the battery pack under test; and an operation unit, comprising a voltage measurement unit, a current measurement unit, a temperature measurement unit and a switch control unit.

公开(公告)号：US10903674B2

公开(公告)日：2021-01-26

申请号：US16223072

申请日：2018-12-17

Applicant: National Chung-Shan Institute of Science and Technology

Inventor： Shu-Hsien Wen ,  Chih-Hsien Chung ,  Jin-Kuan Chang

IPC: H02J7/00 ,  H02J7/06 ,  H02J7/02 ,  H02J7/10

Abstract: A power conversion system comprises a plurality of power converter modules, each including a bi-directional DC to DC converter and a current controller, wherein the bi-directional DC to DC converter is connected to the current controller, for charging or discharging a DC power source according to a distribution command received from the current controller, and a voltage controller, connecting to the plurality of power converter modules, for generating a current command to the current controller, wherein the voltage controller generates a current command to the current controller of the power converter module according to the detected capacity and voltage of the DC power source, whereby the current controller generates the distribution command to the bi-directional DC to DC converter with the received current command.