CN117355914A - 矩阵变压器 - Google Patents
矩阵变压器 Download PDFInfo
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- CN117355914A CN117355914A CN202280035903.6A CN202280035903A CN117355914A CN 117355914 A CN117355914 A CN 117355914A CN 202280035903 A CN202280035903 A CN 202280035903A CN 117355914 A CN117355914 A CN 117355914A
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- magnetic
- circuit board
- matrix transformer
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- 239000011159 matrix material Substances 0.000 title claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 239000000696 magnetic material Substances 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 230000004907 flux Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/22—Cooling by heat conduction through solid or powdered fillings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2847—Sheets; Strips
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
- H01F2027/065—Mounting on printed circuit boards
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2804—Printed windings
- H01F2027/2819—Planar transformers with printed windings, e.g. surrounded by two cores and to be mounted on printed circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F2038/006—Adaptations of transformers or inductances for specific applications or functions matrix transformer consisting of several interconnected individual transformers working as a whole
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
本发明涉及一种矩阵变压器，该矩阵变压器由软磁材质的基体构成，所述基体贯穿至少一个电路板中的开口而构造封闭的磁回路，其中，所述基体具有多个被导电的线圈包围的磁芯，其中，所述基体具有两个在双侧平行于电路板的磁板，所述磁板将所述磁芯相连，其中，所述线圈通过恰当选择的卷绕方向而在所述磁板中分别构造至少一个无磁场的区域，并且其中，所述无磁场的区域内的至少一个磁板中引进有缺口，与冷却体相连的冷却塞贯穿所述缺口延伸直至所述电路板的表面。
Description
技术领域
本发明涉及一种矩阵变压器，该矩阵变压器由软磁材质的基体构成，所述基体贯穿至少一个电路板中的开口而构造封闭的磁回路，其中，基体具有多个被导电的线圈包围的磁芯，其中，基体具有两个在双侧平行于电路板的磁板，磁板将磁芯相连，其中，线圈通过恰当选择的卷绕方向而在磁板中分别构造至少一个无磁场的区域。
为了实现扁平的构形和可预测的热量导出，使用集成电路板的变压器。所述变压器由扁平的软磁材料、优选地由铁氧体构成，所述材料贯穿电路板的多个开口而构造封闭的磁回路，并且变压器还由通过电路板上的导体迹线形成的、包围铁氧体的线圈构成。
线圈同样可借助多个电路板构造，而非借助一个电路板构造。同样可将通过电导体形成的额外的线圈部件安装在该电路板上，所述电路板例如可由卷绕线或者经切割的金属板形成。
为了使电路板中所需的导体层数量保持在低位，通过导体迹线结构形成的线圈分布在多个设置在成行结构中与成列结构中的磁芯。通过线圈的恰当选择的围绕各个磁芯的卷绕方向，这一布置构造所谓的矩阵变压器。
US4665357A中描述了这样的矩阵变压器。
矩阵变压器所具有的优点在于，在矩阵变压器中，磁通部分地相互抵消，并且磁交变场引起的磁损同样减小。在此，通过对磁芯和卷绕方向的适当的设置来构造至少一个无磁场的区域。
发明内容
本发明的任务在于在矩阵变压器中实现改进的冷却和/或更高的电功率。
根据本发明，通过在无磁场的区域内的至少一个磁板中引进缺口、并且使与冷却体相连的冷却塞贯穿所述缺口延伸直至电路板的表面，来解决所述任务。
本发明基于的认识在于，无磁场的区域对于变压器的功能而言是不需要的，从而在那里能够省去磁性材料，并且借此能够将冷却体联接在变压器上。
附图说明
后文借助附图进一步展示并阐述本发明。图中：
图1示出根据本发明的矩阵变压器的截面图，
图2示出矩阵变压器的原理性构造，
图3示出根据图2的矩阵变压器的流向，
图4示出具有用于冷却塞的开口的磁板的实施方式。
具体实施方式
图2示意性地示出了矩阵变压器的原理性构造。所述矩阵变压器由软磁材质的基体1构成，所述基体贯穿至少一个电路板的至少两个开口而构造封闭的磁回路。
图2专门示出了由铁氧体材料构成的四个圆柱状磁芯2，所述磁芯并排地以两行和两列设置，其中，并排而立的磁芯2分别具有相同的间距。分别通过磁板5、6封闭所述磁芯2的下端面和上端面。在此，一个或多个磁芯2与所述磁板5、6中的一个磁板同样可一体式地实施。
围绕着所述磁芯2，示意性地分别示出电导体的多个线圈4。通过多层的电路板的导体迹线构造这些线圈4。为了更清楚展示，所述电路板自身未在图2中绘出，但在图1中作为配有附图标记3的对象示出。
图3通过绘出的箭头释明了围绕所述磁芯2的线圈中的电流方向7以及由此产生的磁通方向8。可看出的是，围绕着相邻设置的磁芯2的所述线圈分别具有相反的电流方向7。由此产生了这里示例性示出的上磁板6的边缘区域中的绘出的磁通方向8。
所述磁通8在所述上磁板和下磁板5、6的中央区域9中几乎完全抵消，从而所述上磁板和下磁板5、6的中央区域9基本上没有磁场。因为所述磁板5、6的中央区域9分别对变压器的功能没有贡献，所以同样可去掉该中央区域而不会有损所述变压器的功能。
如图4简略示出的那样，借此例如可将圆形的缺口10引进所述下磁板5的中部。借此还以有利的方式节省铁氧体材料。
如图1所示，此处纯粹示例性地与实心的冷却体11一体式相连的冷却塞12可置入所述缺口10中。所述冷却塞12被引导直至所述电路板3的表面，并且在那里构造冷却面13。因为所述冷却塞12被引导通过所述磁板5的无磁通的区域，所以该冷却塞能够以有利的方式无问题地由金属构成。
以这种方式能够实现对矩阵变压器的非常有效率的冷却，借此尤其同样可提高所述变压器的功率。
附图标记列表
1 (软磁的)基体
2 磁芯
3 电路板
4 线圈
5 (下)磁板
6 (上)磁板
7 电流方向
8 磁通方向
9 中央区域(无磁场的区域)
10 缺口
11 冷却体
12 冷却塞
13 冷却面
Claims (4)
1.一种矩阵变压器，
其由软磁材质的基体(1)构成，所述基体贯穿至少一个电路板(3)中的开口而构造封闭的磁回路，
其中，所述基体(1)具有多个被导电的线圈(4)包围的磁芯(2)，
其中，所述基体(1)具有两个在双侧平行于电路板(3)的磁板(5、6)，所述磁板将所述磁芯(2)相连，
其中，所述线圈(4)通过恰当选择的卷绕方向而在所述磁板(5、6)中分别构造至少一个无磁场的区域(9)，
其特征在于，
所述无磁场的区域(9)内的至少一个磁板(5、6)中引进有缺口(10)，与冷却体(11)相连的冷却塞(12)贯穿所述缺口延伸直至所述电路板(3)的表面。
2.根据权利要求1所述的矩阵变压器，其特征在于，所述磁芯(2)和所述磁板(5、6)是通过铁氧体构造的。
3.根据权利要求1所述的矩阵变压器，其特征在于，所述线圈(4)是通过所述电路板(3)的导体迹线构造的。
4.根据权利要求1或3所述的矩阵变压器，其特征在于，所述线圈(4)至少部分地通过安装在所述电路板(3)上的卷绕线或者经切割的金属板形成。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021003119.9A DE102021003119A1 (de) | 2021-06-17 | 2021-06-17 | Matrixtransformator |
| DE102021003119.9 | 2021-06-17 | ||
| PCT/EP2022/065333 WO2022263221A1 (de) | 2021-06-17 | 2022-06-07 | Matrixtransformator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117355914A true CN117355914A (zh) | 2024-01-05 |
Family
ID=82308223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202280035903.6A Pending CN117355914A (zh) | 2021-06-17 | 2022-06-07 | 矩阵变压器 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20240047128A1 (zh) |
| EP (1) | EP4356405A1 (zh) |
| CN (1) | CN117355914A (zh) |
| DE (1) | DE102021003119A1 (zh) |
| WO (1) | WO2022263221A1 (zh) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4665357A (en) | 1984-04-23 | 1987-05-12 | Edward Herbert | Flat matrix transformer |
| US5479146A (en) | 1993-07-21 | 1995-12-26 | Fmtt, Inc. | Pot core matrix transformer having improved heat rejection |
| US20160307695A1 (en) * | 2014-03-19 | 2016-10-20 | Ionel Jitaru | Magnetic structures for low leakage inductance and very high efficiency |
| US10074474B2 (en) | 2016-05-13 | 2018-09-11 | Enphase Energy, Inc. | Matrix planar transformer |
| US10910140B2 (en) * | 2017-02-03 | 2021-02-02 | Virginia Tech Intellectual Properties, Inc. | Matrix transformer and winding structure |
-
2021
- 2021-06-17 DE DE102021003119.9A patent/DE102021003119A1/de active Pending
-
2022
- 2022-06-07 EP EP22734878.6A patent/EP4356405A1/de active Pending
- 2022-06-07 WO PCT/EP2022/065333 patent/WO2022263221A1/de active Application Filing
- 2022-06-07 CN CN202280035903.6A patent/CN117355914A/zh active Pending
-
2023
- 2023-10-19 US US18/489,914 patent/US20240047128A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021003119A1 (de) | 2022-12-22 |
| WO2022263221A1 (de) | 2022-12-22 |
| US20240047128A1 (en) | 2024-02-08 |
| EP4356405A1 (de) | 2024-04-24 |
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