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公开(公告)号：US20240136103A1
公开(公告)日：2024-04-25
申请号：US18360839
申请日：2023-07-27
发明人： Teng LIU , Jianxing DONG , Xiaohu LI , Liang WANG , Lei CHEN
CPC分类号： H01F27/022 , H01F27/24 , H01F27/327 , H01F41/127
摘要： The present disclosure discloses a planar magnetic element and a manufacturing method thereof. The planar magnetic element includes: a housing, with an internal space; a core, accommodated in the internal space of the housing, and the core including at least one limb; at least one planar winding corresponding to the limb; and potting adhesive, filled in all air gaps in the internal space of the magnetic element, and blocking the clearance and creepage path between the planar winding and the core and/or between the two planar windings. The present disclosure may significantly reduce the volume of the magnetic element and greatly increase the partial discharge extinction voltage, thereby reducing the partial discharge risk of the magnetic element and improving the reliability. Moreover, the compact structure of the planar magnetic element is conducive to improving the power density of the module.
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公开(公告)号：US20200312517A1
公开(公告)日：2020-10-01
申请号：US16835764
申请日：2020-03-31
发明人： Yong ZENG , Jianxing DONG , Qiang WANG , Teng LIU , Weijun WANG
摘要： A potting box for assembling a transformer comprises an inner wall and an outer wall. The inner wall is sleeved in the outer wall. A bottom plate connected to a bottom portion of the inner wall and a bottom portion of the outer wall to form a potting space for accommodating a first winding and a second winding. An inner side of the outer wall comprises a first support portion for supporting the first winding and an outer side of the inner wall comprises a second support portion for supporting the second winding. An iron core of the transformer penetrates through an inner side of the inner wall.
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公开(公告)号：US20210035725A1
公开(公告)日：2021-02-04
申请号：US16897293
申请日：2020-06-10
发明人： Jianping YING , Liang WANG , Qiang WANG , Teng LIU , Yong ZENG , Jianxing DONG
摘要： The invention relates to a transformer and a method for manufacturing the same. The transformer includes a magnetic core having a body part and a hollow part passing through the body part; a first winding wound around the body part of the magnetic core through the hollow part and including two first leads; a first infiltration material member enclosing the body part and the first winding through the hollow part, with the two first leads being exposed; a second winding wound around the first infiltration material member through the hollow part, isolated from the first winding, and including two second leads; a shell including an accommodating space, in which the magnetic core, the first winding, the first infiltration material, and the second winding are accommodated; and a pouring sealant poured into the accommodating space and maintaining the first leads and the second leads to be exposed outside the shell.
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公开(公告)号：US20200312547A1
公开(公告)日：2020-10-01
申请号：US16836833
申请日：2020-03-31
发明人： Yong ZENG , Jianxing DONG , Qiang WANG , Weijun WANG , Teng LIU
摘要： A transformer comprises at least two windings and each of the at least two windings includes at least one lead-out wire, and a silicone rubber heat-shrinkable sleeve is wrapped around the outer surface of the lead-out wire. The at least two windings and a portion of the silicone rubber heat-shrinkable sleeve are encapsulated in a potting box with a first potting sealant, and another portion of the silicone rubber heat-shrinkable sleeve is exposed outside of the potting box.
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公开(公告)号：US20240234004A9
公开(公告)日：2024-07-11
申请号：US18360839
申请日：2023-07-28
发明人： Teng LIU , Jianxing DONG , Xiaohu LI , Liang WANG , Lei CHEN
CPC分类号： H01F27/022 , H01F27/24 , H01F27/327 , H01F41/127
摘要： The present disclosure discloses a planar magnetic element and a manufacturing method thereof. The planar magnetic element includes: a housing, with an internal space; a core, accommodated in the internal space of the housing, and the core including at least one limb; at least one planar winding corresponding to the limb; and potting adhesive, filled in all air gaps in the internal space of the magnetic element, and blocking the clearance and creepage path between the planar winding and the core and/or between the two planar windings. The present disclosure may significantly reduce the volume of the magnetic element and greatly increase the partial discharge extinction voltage, thereby reducing the partial discharge risk of the magnetic element and improving the reliability. Moreover, the compact structure of the planar magnetic element is conducive to improving the power density of the module.
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公开(公告)号：US20230041739A1
公开(公告)日：2023-02-09
申请号：US17816730
申请日：2022-08-02
发明人： Jianxing DONG , Teng LIU , Xin WANG , Jianping YING
摘要： The disclosure discloses a method and device for detecting insulation state in a conversion system, wherein the conversion system includes an excitation source, a converter having an input end coupled to the excitation source, a connection element coupled between an output end of the converter and a reference point, and a coupling impedance having a first end coupled to the excitation source and a second end coupled to the reference point, the method for detecting insulation state including steps of: S1, controlling at least one main power switch of the converter not to switch; S2, detecting a pulse current signal of the connection element; and S3, processing the pulse current signal and outputting a partial discharge information, the partial discharge information indicating an insulation state of an isolating transformer in the converter. The disclosure can overcome electromagnetic interference of high frequency steep waves on a partial discharge signal.
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公开(公告)号：US20200312516A1
公开(公告)日：2020-10-01
申请号：US16835304
申请日：2020-03-31
发明人： Yong ZENG , Teng LIU , Jianxing DONG
摘要： A transformer comprises an iron core, a support module, a winding unit, a potting box. The potting box includes an inner wall, an outer wall and a bottom plate and the inner wall is sleeved in the outer wall. The bottom plate is connected to a bottom portion of the inner wall and a bottom portion of the outer wall and a potting space is defined by the outer wall, the inner wall and the bottom plate. The winding unit is disposed in the potting space and a magnetic pole of the iron core penetrates through an inner side of the inner wall of the potting box. The support module is disposed between at least one end surface of the potting box and a cover of the iron core to form an insulation clearance. The support odule is close to the inner wall of the potting box.
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