CN109102988B - Common-mode and differential-mode integrated reactor - Google Patents
Common-mode and differential-mode integrated reactor Download PDFInfo
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- CN109102988B CN109102988B CN201810881063.0A CN201810881063A CN109102988B CN 109102988 B CN109102988 B CN 109102988B CN 201810881063 A CN201810881063 A CN 201810881063A CN 109102988 B CN109102988 B CN 109102988B
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 144
- 230000010354 integration Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F2017/0093—Common mode choke coil
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- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
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Abstract
The invention discloses a common-mode and differential-mode integrated reactor, which comprises a differential-mode part, wherein the differential-mode part comprises a first iron core, a second iron core and a differential-mode iron core coil, and the differential-mode iron core coil is arranged on the first iron core and the second iron core; the common-mode and differential-mode integrated reactor has the advantages that the common-mode part consisting of the common-mode iron core and the common-mode iron core coil is additionally arranged on one side of the differential-mode part, so that the common-mode and differential-mode integration is realized, the structure is simple and reasonable, the implementation is easy, the whole volume and the number of components can be reduced under the condition that the differential-mode and common-mode performance is not changed, and the cost can be reduced.
Description
Technical Field
The invention relates to the technical field of reactors, in particular to a common-mode and differential-mode integrated reactor.
Background
In the prior art, a common mode inductor and a differential mode inductor are generally used for filtering out unwanted signals, and because the traditional inductor is formed by winding an enameled wire on a framework and then arranging a magnetic core, in order to meet the requirement of safe distance, the volume of a single component needs to be increased, therefore, the traditional method has the following defects: (1) the overall volume and quantity of the product is increased, which in turn increases the cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the common mode and differential mode integrated reactor which has a simple and reasonable structure, can reduce the whole volume and the number of components and can reduce the cost under the condition of ensuring that the differential mode and common mode performance is not changed.
The object of the invention is achieved in that:
the common-mode and differential-mode integrated reactor is characterized by further comprising a common-mode part, wherein the common-mode part comprises a common-mode iron core and a common-mode iron core coil, the common-mode iron core is arranged on the same side of the first iron core and the second iron core and is close in position, first air gaps are reserved between the common-mode iron core and the first iron core and between the common-mode iron core and the second iron core respectively, and the common-mode iron core coil is electrically connected with the differential-mode iron core coil; the common-mode and differential-mode integrated reactor has the advantages that the common-mode part consisting of the common-mode iron core and the common-mode iron core coil is additionally arranged on one side of the differential-mode part, so that the common-mode and differential-mode integration is realized, the structure is simple and reasonable, the implementation is easy, the whole volume and the number of components can be reduced under the condition that the differential-mode and common-mode performance is not changed, and the cost can be reduced.
The aim of the invention can also be solved by the following technical measures:
further, the first iron core and the second iron core are approximate to E-shaped iron cores and respectively comprise a first support, a second support and a third support which are the same in shape and size, and the first support, the second support and the third support of the first iron core are respectively arranged close to the first support, the second support and the third support of the second iron core, so that the two E-shaped iron cores form an iron core of a differential mode part.
Further, the first support of the first iron core and the first support of the second iron core form a first support group, the second support of the first iron core and the second support of the second iron core form a second support group, the third support of the first iron core and the third support of the second iron core form a third support group, the differential mode iron core coil comprises a first iron core coil, a second iron core coil and a third iron core coil, and the first iron core coil, the second iron core coil and the third iron core coil are respectively wound on the first support group, the second support group and the third support group so that three-phase coils are wound on the two iron cores.
Further, a second air gap is respectively arranged on the first strut group, the second strut group and the third strut group.
Furthermore, a plurality of second air gaps are respectively arranged on the first strut group, the second strut group and the third strut group.
Furthermore, the first iron core and the second iron core of the E-shaped iron core respectively extend to form a convex part towards the common mode part, and two ends of the common mode iron core of the common mode part are respectively close to the convex parts of the first iron core and the second iron core and respectively provided with a first air gap.
Further, the common mode iron core coil comprises a first common mode coil, a second common mode coil and a third common mode coil which are arranged on the common mode iron core, and the first common mode coil, the second common mode coil and the third common mode coil are respectively connected with the third iron core coil, the second iron core coil and the first iron core coil.
Further, the common mode iron core is an integral iron core.
The invention has the following beneficial effects:
(1) the common-mode and differential-mode integrated reactor has the advantages that the common-mode and differential-mode integrated part formed by the common-mode iron core and the common-mode iron core coil is additionally arranged on one side of the differential-mode part, so that the common-mode and differential-mode integrated reactor is simple and reasonable in structure and easy to implement, the overall volume and the number of components can be reduced, the use of materials can be reduced under the condition that the differential-mode and common-mode performance is unchanged, and the cost is reduced.
(2) Furthermore, the differential mode part can remove the high frequency of the voltage phase of each phase coil, and the common mode part removes the high frequency of each phase coil relative to the N lines.
Drawings
FIG. 1 is a schematic diagram of the matching of a differential mode iron core and a common mode iron core of the common mode and differential mode integrated reactor of the invention.
FIG. 2 is a schematic structural diagram of the common-mode and differential-mode integrated reactor of the invention.
FIG. 3 is a schematic diagram of the common mode and differential mode integrated reactor of the present invention.
Detailed Description
The invention will be further described in detail with reference to the drawings and examples.
As shown in fig. 1 to 3, a common mode and differential mode integrated reactor includes a differential mode portion 1, where the differential mode portion 1 includes a differential mode iron core formed by a first iron core 2 and a second iron core 3, and a differential mode iron core coil 4 thereof, where the differential mode iron core coil 4 is disposed on the first iron core 2 and the second iron core 3, and is characterized by further including a common mode portion 5, where the common mode portion 5 includes a common mode iron core 6 and a common mode iron core coil 7, the common mode iron core 6 is an integral iron core, the common mode iron core 6 is disposed on the same side of the first iron core 2 and the second iron core 3 and has a position close to the same side, a first air gap 88 is reserved between the common mode iron core 6 and the first iron core 2 and the second iron core 3, and the common mode iron core coil 7 is electrically connected to the differential mode iron core coil 4.
As shown in the figure, in the present embodiment, the first core 2 and the second core 3 are approximately E-shaped cores, and each of them includes first supports 81, 82, second supports 83, 84, and third supports 85, 86, which are the same in shape and size, and the first support 81, the second support 83, and the third support 85 of the first core 2 are respectively disposed adjacent to the first support 82, the second support 84, and the third support 86 of the second core 3; and the first pillar 81 of the first iron core 2 and the first pillar 82 of the second iron core 3 constitute a first pillar group 8, the second pillar 83 of the first iron core 2 and the second pillar 84 of the second iron core 3 constitute a second pillar group 9, the third pillar 85 of the first iron core 2 and the third pillar 86 of the second iron core 3 constitute a third pillar group 10, the differential mode iron core coil 4 includes a first iron core coil 41, a second iron core coil 42 and a third iron core coil 43, and the first iron core coil 41, the second iron core coil 42 and the third iron core coil 43 are respectively wound on the first pillar group 8, the second pillar group 9 and the third pillar group 10.
As a more specific scheme, one or several second air gaps 11 are respectively arranged on the first strut group 8, the second strut group 9 and the third strut group 10.
As shown in the figure, the first iron core 2 and the second iron core 3 of the E-shaped iron core extend to form convex portions 21 and 31 respectively towards the common mode part 5, and two ends of the common mode iron core 6 of the common mode part 5 are respectively close to the convex portions 21 and 31 of the first iron core 2 and the second iron core 3, and a first air gap 88 is respectively reserved. The common mode core coil 7 includes a first common mode coil 71, a second common mode coil 72 and a third common mode coil 73, which are disposed on the common mode core 6, and the first common mode coil 71, the second common mode coil 72 and the third common mode coil 73 are respectively connected to the third core coil 43, the second core coil 42 and the first core coil 41.
The common-mode and differential-mode integrated reactor has the advantages that the common-mode part consisting of the common-mode iron core and the common-mode iron core coil is additionally arranged on one side of the differential-mode part, so that the common-mode and differential-mode integration is realized, the structure is simple and reasonable, the implementation is easy, the whole volume and the number of components can be reduced under the condition of ensuring that the differential-mode and common-mode performance is not changed, the use of materials can be reduced, and the cost is reduced.
Claims (5)
1. The common-mode and differential-mode integrated reactor comprises a differential-mode part (1), wherein the differential-mode part (1) comprises a first iron core (2), a second iron core (3) and a differential-mode iron core coil (4), the differential-mode iron core coil (4) is arranged on the first iron core (2) and the second iron core (3), the common-mode integrated reactor is characterized by further comprising a common-mode part (5), the common-mode part (5) comprises a common-mode iron core (6) and a common-mode iron core coil (7), the common-mode iron core (6) is arranged on the same side of the first iron core (2) and the second iron core (3) and is close in position, a first air gap (88) is reserved between the common-mode iron core (6) and the first iron core (2) and the second iron core (3), and the common-mode iron core coil (7) is electrically connected with the differential-mode;
the first iron core (2) and the second iron core (3) are approximate to E-shaped iron cores and respectively comprise first support columns (81, 82), second support columns (83, 84) and third support columns (85, 86) which are the same in shape and size, and the first support column (81), the second support column (83) and the third support column (85) of the first iron core (2) are respectively arranged close to the first support column (82), the second support column (84) and the third support column (86) of the second iron core (3);
the differential mode iron core coil comprises a first iron core coil (41), a second iron core coil (42) and a third iron core coil (43), wherein the first support (81) of the first iron core (2) and the first support (82) of the second iron core (3) form a first support group (8), the second support (83) of the first iron core (2) and the second support (84) of the second iron core (3) form a second support group (9), the third support (85) of the first iron core (2) and the third support (86) of the second iron core (3) form a third support group (10), the differential mode iron core coil (4) comprises the first iron core coil (41), the second iron core coil (42) and the third iron core coil (43), and the first iron core coil (41), the second iron core coil (42) and the third iron core coil (43) are respectively wound on the first support group (8), the second support group (9) and the third support group (10);
the E-shaped iron core comprises a first iron core (2) and a second iron core (3) which extend out of convex parts (21 and 31) towards a common mode part (5), wherein two ends of a common mode iron core (6) of the common mode part (5) are close to the convex parts (21 and 31) of the first iron core (2) and the second iron core (3) respectively, and first air gaps (88) are reserved respectively.
2. The common-mode and differential-mode integrated reactor as claimed in claim 1, wherein a second air gap (11) is respectively arranged on the first strut group (8), the second strut group (9) and the third strut group (10).
3. The common-mode and differential-mode integrated reactor as claimed in claim 2, characterized in that a plurality of second air gaps (11) are respectively arranged on the first strut group (8), the second strut group (9) and the third strut group (10).
4. A common-mode and differential-mode integrated reactor according to claim 1, characterized in that the common-mode core coil (7) comprises a first common-mode coil (71), a second common-mode coil (72) and a third common-mode coil (73), which are arranged on the common-mode core (6), and the first common-mode coil (71), the second common-mode coil (72) and the third common-mode coil (73) are respectively connected with the third core coil (43), the second core coil (42) and the first core coil (41).
5. A common-mode and differential-mode integrated reactor according to claim 4, characterized in that the common-mode iron core (6) is a monolithic iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810881063.0A CN109102988B (en) | 2018-08-04 | 2018-08-04 | Common-mode and differential-mode integrated reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810881063.0A CN109102988B (en) | 2018-08-04 | 2018-08-04 | Common-mode and differential-mode integrated reactor |
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| Publication Number | Publication Date |
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| CN109102988A CN109102988A (en) | 2018-12-28 |
| CN109102988B true CN109102988B (en) | 2020-08-25 |
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| CN201810881063.0A Active CN109102988B (en) | 2018-08-04 | 2018-08-04 | Common-mode and differential-mode integrated reactor |
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| EP3761500A1 (en) * | 2019-07-04 | 2021-01-06 | Siemens Aktiengesellschaft | Galvanically isolated single-phase or multi-phase power converter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1391333A (en) * | 2001-06-08 | 2003-01-15 | 台达电子工业股份有限公司 | Differential mode and common mode integrated filter |
| CN102074330A (en) * | 2010-11-30 | 2011-05-25 | 薛韬 | Multi-phase differential-mode and common-mode joint reactor |
| CN204834277U (en) * | 2015-06-23 | 2015-12-02 | 深圳市宝应隆电机制造有限公司 | Plane magnetic cores structure of three -phase AC differential mode and common mode integration |
| CN204857364U (en) * | 2015-06-23 | 2015-12-09 | 深圳市宝应隆电机制造有限公司 | Three -phase AC system differential mode and common mode magnetism integrated reactor |
| CN206312690U (en) * | 2016-12-30 | 2017-07-07 | 上海意兰可电力电子设备有限公司 | The built-in common mode reactor of three-phase reactor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6751106B2 (en) * | 2002-07-25 | 2004-06-15 | General Electric Company | Cross current control for power converter systems and integrated magnetic choke assembly |
| CN203721415U (en) * | 2014-01-06 | 2014-07-16 | 伍尔特电子(深圳)有限公司 | Differential mode and common mode integrated inductor |
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- 2018-08-04 CN CN201810881063.0A patent/CN109102988B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1391333A (en) * | 2001-06-08 | 2003-01-15 | 台达电子工业股份有限公司 | Differential mode and common mode integrated filter |
| CN102074330A (en) * | 2010-11-30 | 2011-05-25 | 薛韬 | Multi-phase differential-mode and common-mode joint reactor |
| CN204834277U (en) * | 2015-06-23 | 2015-12-02 | 深圳市宝应隆电机制造有限公司 | Plane magnetic cores structure of three -phase AC differential mode and common mode integration |
| CN204857364U (en) * | 2015-06-23 | 2015-12-09 | 深圳市宝应隆电机制造有限公司 | Three -phase AC system differential mode and common mode magnetism integrated reactor |
| CN206312690U (en) * | 2016-12-30 | 2017-07-07 | 上海意兰可电力电子设备有限公司 | The built-in common mode reactor of three-phase reactor |
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| CN109102988A (en) | 2018-12-28 |
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