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公开(公告)号：WO2023088559A1
公开(公告)日：2023-05-25
申请号：PCT/EP2021/082211
申请日：2021-11-18
Applicant: HITACHI ENERGY SWITZERLAND AG
Inventor： RADU, Ion
Abstract: Multi-helical windings in a transformer are disclosed. A group of helical windings (100) that are connected in series (e.g., a single, continuous cable wound around a cylinder) may be concentrically arranged around a longitudinal axis to induce magnetic flux in the same direction along the longitudinal axis. A plurality of such groups (100) may be connected in series and arranged radially around the longitudinal axis. Additionally or alternatively, a pair of groups may be connected in parallel and arranged at the same radial distance around the longitudinal axis with an axial separation between the pair. In addition, spaces (DI) may be formed radially between the turns (112A-N) of the helical windings (110A-D) and axially on radial ends of the group for cooling. The disclosed configurations may be used as the LV or HV winding in any type of transformer, including single- phase and three-phase distribution, dry, and power transformers.
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公开(公告)号：WO2023087484A1
公开(公告)日：2023-05-25
申请号：PCT/CN2021/140383
申请日：2021-12-22
Applicant: 广州视源电子科技股份有限公司
Abstract: 本申请提供了一种电压变换方法、电子设备、平面变压器及其绕组结构，将平面变压器的第一绕组和第二绕组设置在磁芯的空腔内，并将第一绕组的N匝第一线圈，设置在第二绕组的M匝第二线圈的上、下两侧和左、右两侧，当第一绕组和第二绕组内流经方向相反的电流时，第一线圈和第二线圈的磁场能够相互抵消，从而能够减少了平面变压器内第一绕组和第二绕组在多个方向上的磁场强度，进而减少了平面变压器的涡流损耗。
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公开(公告)号：WO2023011448A1
公开(公告)日：2023-02-09
申请号：PCT/CN2022/109645
申请日：2022-08-02
Applicant: SHANGHAI UNITED IMAGING HEALTHCARE CO., LTD.
Inventor： CHEN, Qingchang , WANG, Bobo , LUO, Xiaopeng
Abstract: The present disclosure relates to power transformers and medical devices having the same. A power transformer may include a first magnet comprising a first magnetic core and a first winding and a second magnet comprising a second magnetic core and a second winding wound around a side wall of the second magnetic core. The first magnetic core may include an annular body, and the first winding may be wound around a side wall of the annular body. The second magnetic core may include a groove extending from an end surface of the second magnetic core. The first magnet and the second magnet may be contactless. At least part of the annular body may be embedded in the groove. The first winding and the second winding may be at least partially overlapped along an axial direction of the second magnetic core.
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公开(公告)号：WO2023002373A1
公开(公告)日：2023-01-26
申请号：PCT/IB2022/056649
申请日：2022-07-19
Applicant: 3M INNOVATIVE PROPERTIES COMPANY
Inventor： KIM, Jinwook , WOO, Seong-Woo , MO, Sang-Jun , LEE, Dongeun , KIM, Jong-Pil
Abstract: The disclosure relates to a coil and an electrical system including the same. Specifically, according to an embodiment of the disclosure, there is provided a coil including: main coil surfaces which are opposite each other and are substantially planar; and a multilayer film which is wound to form a plurality of loops which are substantially concentric, wherein the plurality of loops include an innermost loop including a first longitudinal direction end of the coil, and an outermost loop including a second longitudinal direction end of the coil, wherein the multilayer film includes a plurality of first electro-conductive layers which alternate with each other, and one or more second electrical insulation layers, wherein the first electro-conductive layer and the second electrical insulation layer have a width and a length which are substantially coextensive therebetween, such that the main coil surfaces, which are substantially planar, include corresponding end surfaces of the first electro-conductive layer and the second electrical insulation layer, respectively, wherein at least two first electro-conductive layers have different average thicknesses to reduce an alternating current resistance of the coil by 5%-11.3% inclusive in a frequency of at least about 148 kHz.
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公开(公告)号：WO2022266702A1
公开(公告)日：2022-12-29
申请号：PCT/AU2022/050624
申请日：2022-06-21
Applicant: MOMA PRODUCTS PTY LTD
Inventor： JARVIS, Michael , NELSON, Simon
IPC: F21S8/08 , F21S9/03 , F21V23/00 , F21V23/02 , F21V23/04 , F21W131/103 , H01F27/34 , H02H9/00 , H02J3/38 , H02J7/00 , F21S8/085 , F21S9/035 , F21V23/003 , F21W2131/103 , F21Y2115/10 , H02J7/0029 , H02J7/35 , H02J9/068
Abstract: Disclosed is a streetlight system. The streetlight system has a LED light, a battery for powering the LED light, a photovoltaic cell for recharging the battery, a transformer that in use converts a mains power supply down to an output having an operational voltage of the LED light, and a control unit for detecting a voltage of the battery. The control unit is configured so that when the control unit detects that a voltage of the battery is above a threshold value the LED light is powered using the battery, and when the control unit detects that a voltage of the battery is below the threshold value the LED light is powered using the output having the operational voltage of the LED light.
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Patent Agency Ranking
公开(公告)号：WO2022213602A1
公开(公告)日：2022-10-13
申请号：PCT/CN2021/129879
申请日：2021-11-10
Applicant: 海鸿电气有限公司
Abstract: 本发明公开了一种立体卷铁心变压器的夹持装置和变压器，夹持装置包括下框架、多个上压板组件和多个螺杆组件，下框架用于设置在立体卷铁心变压器的多个线圈绕组的下侧，多个上压板组件用于分布设置在所述多个线圈绕组的的上侧，所述下框架和所述上压板组件通过螺杆组件连接，从而共同夹紧所述线圈绕组。本发明实施例提供的变压器由于采用了该夹持装置，相比传统的夹持装置，减少了铁心周边的钢铁耗材，使得结构更简单，总体占有的体积更小，重量更轻，起到节省材料和减少变压器杂散损耗的作用。
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公开(公告)号：WO2022173141A1
公开(公告)日：2022-08-18
申请号：PCT/KR2022/001040
申请日：2022-01-20
Applicant: 삼성전자 주식회사
Abstract: 다양한 실시예들에 따르면, 코일은, 제1 평면 상에 배치된 제1 전도체, 제1 평면과 상이한 제2 평면 상에 배치되고, 제1 전도체의 제1 단에 전기적으로 연결되는 제1 단, 및 제1 전도체의 제2 단 근처에 위치하는 제2 단을 포함하는 제2 전도체, 및 제1 평면 상에 배치되고, 제2 전도체의 제2 단에 전기적으로 연결되는 제1 단, 및 제2 전도체의 제1 단 근처에 위치하는 제2 단을 포함하는 제3 전도체를 포함하고, 제1 전도체의 제2 단으로부터 제1 전도체의 제1 단을 연결하는 제1 전도체의 패턴은, 제1 평면을 제1 측면에서 바라보았을 때, 시계 방향 또는 반시계 방향이고, 제3 전도체의 제1 단으로부터 제3 전도체의 제2 단을 연결하는 제3 전도체의 패턴은, 제1 평면을 상기 제1 측면에서 바라보았을 때, 제1 전도체의 패턴의 방향과 반대 방향일 수 있다.
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公开(公告)号：WO2022124064A1
公开(公告)日：2022-06-16
申请号：PCT/JP2021/042780
申请日：2021-11-22
Inventor： 岩本 敬 IWAMOTO, Takashi , 稲男 健 INAO, Takeshi
Abstract: 高周波モジュール（１０）は、モジュール基板（２０）と、インダクタ装置（１００）と、弾性波フィルタ（２００）とを備える。モジュール基板（２０）の法線方向から平面視した場合に、インダクタ装置（１００）は、弾性波フィルタ（２００）の少なくとも一部と重なるように配置されている。インダクタ装置（１００）は、直列に接続された第１コイル（１３１）および第２コイル（１３２）を含む。第１コイル（１３１）および第２コイル（１３２）の各々は、１周より多く巻回されたスパイラルコイルあるいはヘリカルコイルである。モジュール基板の法線方向から平面視した場合に、第１コイル（１３１）は、第２コイル（１３２）と少なくとも一部が重なるように配置されている。第１コイル（１３１）によって形成される磁界方向は、第２コイル（１３２）によって形成される磁界方向と逆方向である。
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公开(公告)号：WO2022104897A1
公开(公告)日：2022-05-27
申请号：PCT/CN2020/132591
申请日：2020-11-30
Applicant: 深圳顺络汽车电子有限公司
IPC: H01F27/255 , H01F27/34
Abstract: 一种低损耗变压器，该变压器包括两个或多个磁芯（1）、线圈（2）、绕线骨架（3）、导电金属端子（4），该线圈（2）绕制在该绕线骨架（3）上，磁芯（1）由一种或多种高饱和低损耗合金磁粉与绝缘介质进行绝缘包覆后通过模具压制，再通过高温烘烤固化而成。该磁芯（1）初始磁导率为10～250之间，可通过改变磁粉粒径大小比例进行调整磁导率大小，从而实现无气隙的闭合磁路，消除了高频应用中传统铁氧体磁芯结构气隙扩散磁通造成的涡流损耗增加及EMI性能变差的问题。该无气隙的变压器具有高可靠性，高功率密度，高转换效率，高饱和磁通密度，优良的耐大电流性能及EMI性能优点，可完全替代传统变压器铁氧体气隙磁芯结构。
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公开(公告)号：WO2022090278A1
公开(公告)日：2022-05-05
申请号：PCT/EP2021/079755
申请日：2021-10-27
Applicant: ETA GREEN POWER LTD.
Inventor： BOWMAN, Liam
Abstract: The present invention relates to an inductor coil, comprising: a first component (12); a second component (14); a length of conductor (18); a heat sink (100); wherein, the first component is located adjacent to the second component; wherein, a core (16) is formed from the first component and the second component; wherein, a first part of the length of conductor is wound around at least the core to form a plurality of turns of conductor; wherein, the heat sink comprises a thermally conductive material; wherein, the heat sink comprises a first part (90, 110) and a second part; wherein, first part of the heat sink has a first material and/or structural characteristic and the second part of the heat sink has a second material and/or structural characteristic different to the first material and/or structural characteristic; and wherein, an inner surface of the first part of the heat sink is in contact with an outer surface of a part of the plurality of turns of conductor.
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