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公开(公告)号：US20210395583A1
公开(公告)日：2021-12-23
申请号：US17331851
申请日：2021-05-27
Applicant: DELTA ELECTRONICS (SHANGHAI) CO.,LTD.
Abstract: The present disclosure relates to a potting adhesive, including: a component A and a component B, the component A including a first liquid organic adhesive containing dimethyl siloxane, the component B including a second liquid organic adhesive containing methyl hydrogen siloxane and silicone oil, at least one of the component A and the component B further including ceramic particles which are spherical particles with a particle size of 0.1 mm to 3 mm. The present disclosure further relates to a heat dissipation device, including an adhesive potting groove, a transformer provided in the adhesive potting groove, and a filling medium which fills and is consolidated in a gap between the transformer and the adhesive potting groove.
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公开(公告)号：US20210043357A1
公开(公告)日：2021-02-11
申请号：US17082020
申请日：2020-10-28
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Zhen-Rong HUANG , Pei-Ai YOU , Hao SUN , Hai-Jun YANG , Zeng-Yi LU
Abstract: A magnetic component includes a magnetic core and a first winding module. The magnetic core has two opposite openings and at least one magnetic column. The first winding module has a plurality of annular metal plates disposed around the at least one magnetic column. Each of the annular metal plates has an electrical connection end, an annular portion and a heat-dissipating end. The electrical connection end and the heat-dissipation end are located at the two opposite openings of the magnetic core respectively. A thermal-dissipating area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.
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公开(公告)号：US20190245430A1
公开(公告)日：2019-08-08
申请号：US16239554
申请日：2019-01-04
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Peiai YOU , Hao SUN , Jinfa ZHANG
Abstract: A power conversion apparatus is provided, which comprises a housing, a mother board, an electromagnetic filter board, a signal board, and a heat-dissipation module. The housing includes a first heat-dissipation wall and a coolant passage. The mother board is disposed upon the housing, and comprises a first surface facing the housing and a first power device. The heat-dissipation module includes a first insulated heat-conducting sheet adhered to the corresponding first heat-dissipation wall and a first elastic clamp. When the first surface of the mother board approaches the housing to clamp the first power device within the accommodating space, the first power device is pressed against by the first elastic clamp and thus adhered to the first insulated heat-conducting sheet, so that the first power device is thermally coupled to the first heat-dissipation wall and the coolant passage via the first insulated heat-conducting sheet.
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公开(公告)号：US20190243431A1
公开(公告)日：2019-08-08
申请号：US16240802
申请日：2019-01-07
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Peiai YOU , Hao SUN , Jinfa ZHANG
CPC classification number: G06F1/20 , H02M11/00 , H04B15/005 , H05K7/20154 , H05K7/20263
Abstract: A power conversion apparatus is provided, which comprises a housing, a main board, a first electromagnetic filtering board, a second electromagnetic filtering board, a signal board, a capacitor board, and a heat-dissipation module. The housing includes a heat-dissipation wall and a coolant runner. The main board is disposed upon the housing and comprises a first surface facing the housing and a power device. The heat-dissipation module includes an thermal conductive insulating sheet adhered to the heat-dissipation wall and an elastic clamp. When the main board approaches the housing to clamp the power device in the accommodating space between the elastic clamp and the thermal conductive insulating sheet, the power device is pressed against by the elastic clamp and thus adhered to the thermal conductive insulating sheet, so that the power device is thermally coupled to the heat-dissipation wall and the coolant runner via the thermal conductive insulating sheet.
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公开(公告)号：US20180358162A1
公开(公告)日：2018-12-13
申请号：US15987896
申请日：2018-05-23
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Zhen-Rong HUANG , Pei-Ai YOU , Hao SUN , Hai-Jun YANG , Zeng-Yi LU
CPC classification number: H01F27/22 , H01F17/043 , H01F17/06 , H01F27/08 , H01F27/16 , H01F27/24 , H01F27/2847 , H01F27/2866 , H01F27/2876 , H01F27/30 , H01F2017/048 , H01F2017/067 , H01F2027/065 , H02M1/32 , H02M2001/327
Abstract: A magnetic component includes a magnetic core and a first winding module. The magnetic core has two opposite openings and at least one magnetic column. The first winding module has a plurality of annular metal plates disposed around the at least one magnetic column. Each of the annular metal plates has an electrical connection end, an annular portion and a heat-dissipating end. The electrical connection end and the heat-dissipation end are located at the two opposite openings of the magnetic core respectively. A thermal-dissipating area of the heat-dissipating end is greater than a cross-sectional area of a connection portion between the heat-dissipating end and the annular portion.
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Patent Agency Ranking
公开(公告)号：US20220077767A1
公开(公告)日：2022-03-10
申请号：US17446305
申请日：2021-08-30
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Xiaolei WANG , Peng ZHU , Jianpeng LIN , Haixin WU , Hao SUN
Abstract: A startup control method for a DC/DC converter is used for starting the DC/DC converter with energy transferred from a low-voltage side to a high-voltage side, and includes: determining a duty cycle or a frequency of a driving signal based on at least a voltage spike reference value and a voltage spike measurement value of a power switch at the low-voltage side; and outputting the driving signal to the power switch, thereby controlling the on and off of the power switch. The startup control method for a DC/DC converter of the disclosure can improve a reverse charging power of the converter to the maximum extent and reduce the time needed for charging a bus capacitor during a reverse startup process while ensuring voltage stress on the power switch not to exceed a limit.
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公开(公告)号：US20210061114A1
公开(公告)日：2021-03-04
申请号：US16993282
申请日：2020-08-14
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Hao SUN , Minli JIA , Jinfa ZHANG
Abstract: The embodiments of the present disclosure provide an on-board charging and discharging system, including: a first power conversion module, a second power conversion module, and a third power conversion module, where the input terminals of the first power conversion module, the second power conversion module and the third power conversion module are respectively electrically connected to one corresponding phase of a three-phase power supply; each power conversion module includes an AC-DC converter, a bus capacitor and a first DC-DC converter, an input terminal of the AC-DC converter is electrically connected to the one corresponding phase of the three-phase power supply, and the bus capacitor is connected in parallel with an output of the AC-DC converter and an input of the first DC-DC converter, respectively; where at least the third power conversion module is a bidirectional power conversion module.
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公开(公告)号：US20200321796A1
公开(公告)日：2020-10-08
申请号：US16827731
申请日：2020-03-24
Applicant: Delta Electronics (Shanghai) Co., Ltd.
Inventor： Lei CHANG , Minli JIA , Hao SUN , Jinfa ZHANG
Abstract: The present invention relates a single-phase and three-phase compatible circuit and a charge-discharge apparatus. The circuit comprises: a terminal, a first bridge arm, a first switch, a second bridge arm, a switch set, a third bridge arm, a fourth switch, two bus capacitors connected in series, and a fifth switch. The terminal is configured to receive or provide an AC power. When the terminal receives or provides a single-phase AC power, the first switch and the fifth switch are turned on and the first and third terminals of the switch set are electrically connected. The third inductor, the third bridge arm and the two bus capacitors form a half-bridge active filter circuit. A regulation module is electrically connected to the two bus capacitors and the third bridge arm, and controls the third bridge arm based on the voltages of the two bus capacitors.
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公开(公告)号：US20240006986A1
公开(公告)日：2024-01-04
申请号：US18468746
申请日：2023-09-18
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Xiaolei WANG , Peng ZHU , Jianpeng LIN , Haixin WU , Hao SUN
CPC classification number: H02M1/36 , G01R19/04 , H02M1/088 , H02M3/33576 , H02M3/33584
Abstract: A voltage spike measurement circuit for a power switch includes a rectifier unit, a capacitive divider unit and a discharge unit, the rectifier unit configured to receive a voltage signal at both ends of a power switch and output a rectified signal; the capacitive divider unit includes at least two capacitors connected in series and configured to receive the rectified signal, divide the rectified signal based on a capacitance ratio of the at least two capacitors, and output a divider signal to a digital signal processor to calculate a voltage spike measurement value of the power switch; and the discharge unit connected in parallel to the capacitive divider unit.
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公开(公告)号：US20240006985A1
公开(公告)日：2024-01-04
申请号：US18468745
申请日：2023-09-18
Applicant: Delta Electronics (Shanghai) Co.,Ltd.
Inventor： Xiaolei WANG , Peng ZHU , Jianpeng LIN , Haixin WU , Hao SUN
CPC classification number: H02M1/36 , G01R19/04 , H02M1/088 , H02M3/33576 , H02M3/33584
Abstract: A startup control method for a DC/DC converter is used for starting the DC/DC converter with energy transferred from a low-voltage side to a high-voltage side, and includes: acquiring a voltage spike measurement value of a power switch at the low-voltage side; determining a duty cycle or a frequency of a driving signal according to the voltage spike measurement value and a preset voltage; and outputting the driving signal to a power switch at the high-voltage side, thereby charging a clamping capacitor of the power switch at the low-voltage side. The startup control method for a DC/DC converter of the disclosure can improve a reverse charging power of the converter to the maximum extent and reduce the time needed for charging a bus capacitor during a reverse startup process while ensuring voltage stress on the power switch not to exceed a limit.
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