CN109036800B - Three-phase magnetic integrated device - Google Patents
Three-phase magnetic integrated device Download PDFInfo
- Publication number
- CN109036800B CN109036800B CN201811104924.0A CN201811104924A CN109036800B CN 109036800 B CN109036800 B CN 109036800B CN 201811104924 A CN201811104924 A CN 201811104924A CN 109036800 B CN109036800 B CN 109036800B
- Authority
- CN
- China
- Prior art keywords
- magnetic core
- winding
- post
- winding post
- magnetic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/266—Fastening or mounting the core on casing or support
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a three-phase magnetic integrated device, which comprises a top magnetic core, a middle partition magnetic core and a bottom magnetic core which are arranged in a shape-fit manner, wherein the top magnetic core and the bottom magnetic core are symmetrically designed relative to the middle partition magnetic core; the top magnetic core is provided with a first magnetic core middle post, a second magnetic core middle post, a first magnetic core winding post, a second magnetic core winding post and a third magnetic core winding post, and the first magnetic core winding post, the first magnetic core middle post, the second magnetic core winding post, the second magnetic core middle post and the third magnetic core winding post are sequentially arranged on the same horizontal straight line in sequence; the bottom magnetic core is provided with a third magnetic core middle post, a fourth magnetic core winding post, a fifth magnetic core winding post and a sixth magnetic core winding post which are symmetrical with the first magnetic core middle post, the second magnetic core middle post, the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post; the invention can reduce the loss of the combined magnetic core, is convenient for the heat dissipation of the winding in structure, is favorable for realizing higher power density and has strong practical value.
Description
Technical Field
The invention belongs to the field of inductance circuit design, and particularly relates to a three-phase magnetic integrated device.
Background
The LLC topology can realize soft switching in a wider load range, is beneficial to realizing the aims of high efficiency and high power density, and is widely applied in the field of power converters; to further increase power density and efficiency, series-parallel connection using a multi-phase LLC topology is one option. Each phase LLC contains two magnetic elements of resonant inductance and main transformer, and for multiphase LLC, if discrete devices are used, the volume is larger and the cost is higher; at present, magnetic integration schemes exist, and a plurality of magnetic devices are integrated on one magnetic core, so that the problems can be solved to a certain extent; aiming at three-phase LLC topology, two prior art schemes are adopted, one is to use discrete devices, and the three-phase LLC topology is large in size and not beneficial to improving efficiency; yet another approach to using magnetic integrated devices is shown in connection with fig. 9-13, for patent number CN106057433a, which is incorporated herein by reference. The magnetic element comprises a combined magnetic core and primary windings on the combined magnetic core, wherein each combined magnetic core comprises a main magnetic core, a secondary magnetic core and a secondary winding wound on the main magnetic core; and each primary winding is wound on the part of the main magnetic core of the corresponding combined magnetic core to serve as the primary inductance of the transformer of the corresponding branch, and each primary winding is wound on the part of the auxiliary magnetic core of the corresponding combined magnetic core to serve as the resonance inductance of the corresponding branch. Fig. 9 is a perspective view of a three-phase magnetic integrated device according to a conventional scheme, fig. 10 is a schematic view of the magnetic integrated device according to the conventional scheme in MM 'section, fig. 11 is a perspective view of a magnetic integrated device according to another conventional scheme, and fig. 12 is a schematic view of the magnetic integrated device according to the conventional scheme in MM' section.
In summary, for the three-phase LLC circuit, 6 magnetic devices are totally used, and the volume is larger, the efficiency is low, and the cost is higher; the existing magnetic integration technical scheme is not beneficial to heat dissipation of the magnetic device. As can be seen from fig. 9 and 10, only one surface of each winding on the main magnetic core and one surface of each winding on the auxiliary magnetic core are contacted with the outside, and the heat dissipation area is small; for another solution, from fig. 11 and fig. 12, in order to avoid the whole magnetic element being too long and narrow (being unfavorable for PCB layout), only a narrower side of the middle line group contacts with air, and the actual heat dissipation area is small; continuing to observe the scheme of fig. 9, fig. 13 is a schematic diagram of the magnetic flux operation of the scheme in CC' section during normal operation, but in actual operation, because the side legs 6 and 7 have no air gap, and the center legs 111 and 112 are air-gap, a significant portion of the magnetic flux is coupled through the side legs 6 and 7, and the magnetic flux is not effectively cancelled out at the base of the two sides.
Disclosure of Invention
The invention mainly aims to provide a three-phase magnetic integrated device which has high magnetic integration level, can effectively reduce loss and has good heat dissipation effect, and the specific technical scheme is as follows:
A three-phase magnetic integrated device comprising a top magnetic core, a middle spacer magnetic core and a bottom magnetic core arranged in a shape-fit manner, wherein the opening of the top magnetic core is downward, and the opening of the bottom magnetic core is upward; the top magnetic core is arranged right above the middle partition magnetic core, the bottom magnetic core is arranged right below the middle partition magnetic core, and the top magnetic core and the bottom magnetic core are symmetrically designed relative to the middle partition magnetic core; wherein:
The top magnetic core comprises an upper magnetic core base, a first magnetic core middle post, a second magnetic core middle post, a first magnetic core winding post, a second magnetic core winding post and a third magnetic core winding post, wherein the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are uniformly arranged on the same horizontal straight line of the upper magnetic core base, and the first magnetic core middle post and the second magnetic core middle post are respectively arranged in gaps between the second magnetic core winding post and the first magnetic core winding post as well as between the second magnetic core winding post and the third magnetic core winding post;
The bottom magnetic core comprises a lower magnetic core base, a third magnetic core middle post, a fourth magnetic core winding post, a fifth magnetic core winding post and a sixth magnetic core winding post, wherein the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post are uniformly arranged on the same horizontal straight line of the lower magnetic core base, and the third magnetic core middle post and the fourth magnetic core middle post are respectively arranged at gaps of the fifth magnetic core winding post, the fourth magnetic core winding post and the sixth magnetic core winding post;
The first magnetic core center pillar is symmetrically arranged with the third magnetic core center pillar, the second magnetic core center pillar is symmetrically arranged with the fourth magnetic core center pillar, and the first magnetic core winding pillar, the second magnetic core winding pillar and the third magnetic core winding pillar are respectively and correspondingly arranged with the fourth magnetic core winding pillar, the fifth magnetic core winding pillar and the sixth magnetic core winding pillar.
Further, the first magnetic core winding post, the second magnetic core winding post, the third magnetic core winding post, the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post can be arranged in any shape; and the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are the same in size and shape, and the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post are the same in size and shape.
Further, the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are provided with the same first air gap, the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post are provided with the same second air gap, and the first air gap and the second air gap are used for preventing the whole magnetic integrated device from being saturated.
Further, the first, second, third and fourth core legs may be provided in any shape.
Further, the magnetic integrated device further includes a first winding, a second winding, a third winding, a fourth winding, a fifth winding, and a sixth winding, the first winding, the second winding, and the third winding being wound on the first core winding leg, the second core winding leg, and the third core winding leg to serve as resonant inductances, the first winding, the second winding, and the third winding remaining portions being wound on the fourth core winding leg, the fifth core winding leg, and the sixth core winding leg to form a transformer, and being a primary portion of the transformer, the fourth winding, the fifth winding, and the sixth winding being stacked and wound on the fourth core winding leg, the fifth core winding leg, and the sixth core winding leg to form a secondary portion of the transformer;
The first winding, the second winding and the third winding are wound on the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post to be used as resonance inductors, the residual parts of the first winding, the second winding and the third winding are wound on the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post to form a transformer and serve as primary side parts of the transformer, and the fourth winding, the fifth winding and the sixth winding are wound on the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post in a superposition mode to form secondary side parts of the transformer.
According to the three-phase magnetic integrated device, the top magnetic core, the middle partition magnetic core and the bottom magnetic core which are matched in shape and size are arranged, the top magnetic core, the middle partition magnetic core and the bottom magnetic core are sequentially laminated from top to bottom, the magnetic core middle column and the magnetic core winding column are respectively arranged on the top magnetic core and the bottom magnetic core and used for winding a winding, and meanwhile, the magnetic core winding column is provided with an air gap to increase the saturation of the whole inductance device; compared with the prior art, the magnetic integration level is higher, and the magnetic flux of the three-phase coil in the middle column of the magnetic core and the partition plate in the magnetic core can be completely counteracted through the optimization of the magnetic circuit, so that the loss is effectively reduced; meanwhile, the contact area between the winding coil with the structure and the outside is larger, which is more beneficial to the heat dissipation of the magnetic integrated device.
Drawings
FIG. 1 is a schematic perspective view of a three-phase magnetic integrated device according to an embodiment of the present invention;
FIG. 2 is a schematic block diagram of the top core in accordance with an embodiment of the present invention;
FIG. 3 is a schematic illustration of the mechanism of the septum core in an embodiment of the present invention;
FIG. 4 is a schematic diagram of the bottom core in accordance with an embodiment of the present invention;
FIG. 5 is a schematic view of a winding bypass of the AA cross-section of the three-phase magnetic integrated device according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a magnetic flux path along section AA of a phase resonant inductor and transformer in accordance with an embodiment of the present invention;
FIG. 7 is a schematic diagram of a phase-shifted interleaved series three-level LLC circuit in an embodiment of the invention;
FIG. 8 is a schematic diagram of other structures of a three-phase magnetic integrated device according to an embodiment of the present invention;
Fig. 9 to 13 are schematic views of a magnetic integrated device according to the related art.
Identification description: 1-top core, 2-middle separator core, 3-bottom core;
The magnetic core winding device comprises an upper magnetic core base, a first magnetic core middle pillar, a second magnetic core middle pillar, a first magnetic core winding pillar, a second magnetic core winding pillar and a third magnetic core winding pillar, wherein the upper magnetic core base is 11-the first magnetic core middle pillar, the second magnetic core middle pillar, the first magnetic core winding pillar, the second magnetic core winding pillar and the third magnetic core winding pillar are 14-the second magnetic core winding pillar, 15-the second magnetic core winding pillar and 16-the third magnetic core winding pillar; 31-lower core base, 32-third core middle leg, 33-fourth core middle leg, 34-fourth core winding leg, 35-fifth core winding leg, 36-sixth core winding leg.
Detailed Description
In order to better understand the solution of the present invention by those skilled in the art, the following will describe the solution of the embodiment of the present invention in which the resonant inductor is located on the top core in a clear and complete way with reference to the accompanying drawings in the embodiment of the present invention.
Referring to fig. 1 to 8, in an embodiment of the present invention, there is provided a three-phase magnetic integrated device, the device including a top magnetic core 1, a middle barrier magnetic core 2, and a bottom magnetic core 3 which are arranged in a shape-fit manner, with the top magnetic core 1 opening downward and the bottom magnetic core 3 opening upward; the top magnetic core 1 is arranged right above the middle partition magnetic core 2, the bottom magnetic core 3 is arranged right below the middle partition magnetic core 2, and the top magnetic core 1 and the bottom magnetic core 3 are symmetrically designed about the middle partition magnetic core 2; the top magnetic core 1 comprises an upper magnetic core base 11, a first magnetic core middle pillar 12, a second magnetic core middle pillar 13, a first magnetic core winding pillar 14, a second magnetic core winding pillar 15 and a third magnetic core winding pillar 16, wherein the first magnetic core winding pillar 14, the second magnetic core winding pillar 15 and the third magnetic core winding pillar 16 are uniformly arranged on the same horizontal straight line on the upper magnetic core base 11, and the first magnetic core middle pillar 12 and the second magnetic core middle pillar 13 are respectively arranged at the gaps between the second magnetic core winding pillar 15 and the first magnetic core winding pillar 14 and between the second magnetic core middle pillar 13 and the third magnetic core winding pillar 16; the bottom magnetic core 3 comprises a lower magnetic core base 31, a third magnetic core middle post 32, a fourth magnetic core middle post 33, a fourth magnetic core winding post 34, a fifth magnetic core winding post 35 and a sixth magnetic core winding post 36, wherein the fourth magnetic core winding post 34, the fifth magnetic core winding post 35 and the sixth magnetic core winding post 36 are uniformly arranged on the same horizontal straight line of the lower magnetic core base 31, and the third magnetic core middle post 32 and the fourth magnetic core middle post 33 are respectively arranged at the gaps between the fifth magnetic core winding post 35 and the fourth magnetic core winding post 34 and between the third magnetic core middle post 33 and between the fourth magnetic core winding post 36; the first core leg 12 is symmetrically disposed with the third core leg 32, the second core leg 13 is symmetrically disposed with the fourth core leg 33, and the first core leg 14, the second core leg 15, and the third core leg 16 are symmetrically disposed with respect to the fourth core leg 34, the fifth core leg 35, and the sixth core leg 36, respectively.
In order to facilitate winding and appearance of windings, the invention can be hollowed out on the middle partition magnetic core 2, and other parts except the third magnetic core middle column, the fourth magnetic core middle column, the fifth magnetic core middle column and the sixth magnetic core middle column are hollowed out on the magnetic core base of the bottom magnetic core 3.
In particular embodiments, the first, second, third, fourth, fifth and sixth core winding legs 14, 15, 16, 34, 35, 36 may be provided in any shape, such as square, circular, or other similar shapes, etc.; likewise, the first core leg 12, the second core leg 13, the third core leg 32, and the fourth core leg 33 may be provided in any shape; in order to better surround the windings wound around the first, second, third, fourth, fifth and sixth core winding limbs 14, 15, 16, 34, 35 and 36, the present invention preferably provides all core center limbs with an inner circular arc shape, although the present invention is not limited and fixed to all core center limbs and core winding limbs, and may be selected according to practical situations.
In the embodiment of the present invention, the first air gap is formed on the first magnetic core winding leg 14, the second magnetic core winding leg 15 and the third magnetic core winding leg 16, and the second air gap is formed on the fourth magnetic core winding leg 34, the fifth magnetic core winding leg 45 and the sixth magnetic core winding leg 46, so as to prevent saturation of the whole magnetic integrated device; and all magnetic core center posts do not set up the air gap, and first air gap and second air gap can set up different length to the invention is not limited this, can integrate three resonance inductance and three transformer in the three-phase LLC resonant circuit in a combination magnetic core, the effectual holistic volume that has reduced.
Still further, in connection with fig. 6, the magnetic integrated device of the present invention includes a first winding, a second winding, a third winding, a fourth winding, a fifth winding, and a sixth winding, the first winding, the second winding, and the third winding being wound around the first core leg 14, the second core leg 15, and the third core leg 16 as resonant inductances, the remaining portions of the first winding, the second winding, and the third winding being wound around the fourth core leg 34, the fifth core leg 35, and the sixth core leg 36 as primary portions of the transformer, the fourth winding, the fifth winding, and the sixth winding being stacked around the fourth core leg 34, the fifth core leg 35, and the sixth core leg 36 to form secondary portions of the transformer; similarly, the present invention may be used as a resonant inductor by winding the first, second and third winding designated portions of the fourth, fifth and sixth core winding legs 34, 35 and 36, the remainder being wound on the first, second and third core winding legs 14, 15 and 16 as the primary side portions of the transformer, and the fourth, fifth and sixth windings being wound on the first, second and third core winding legs 14, 15 and 16 in an overlapping manner as the secondary side portions of the transformer; in order to facilitate outgoing lines, corresponding slotted holes are formed in the middle partition magnetic core 2 and the bottom magnetic core base 31.
In the specific embodiment of the invention, the coupling exists among the three resonant inductors in the top magnetic core 1, among the three transformers in the bottom magnetic core 2 and between the resonant inductors and the transformers, and the loss can be reduced through proper design; as can be seen from the fact that the magnetic integrated device of the present invention is connected to the circuit shown in fig. 7, the phase difference between the three-phase currents is 120 degrees, and the sum of the three-phase currents is zero in an ideal case, for the top magnetic core 1, in combination with fig. 6, the magnetic fluxes at the positions of the first magnetic core center pillar 12 and the second magnetic core center pillar 13 can be completely offset, and the losses on the two magnetic core center pillars can be ignored, so that the area of the center pillar can be made small; similarly, the magnetic fluxes generated by the three transformers of the bottom magnetic core 3 are coupled, that is, the areas of the third magnetic core middle leg 32 and the fourth magnetic core middle leg 33 can be reduced, so that the space is saved; further, the magnetic flux on the upper surface of the intermediate shield core 2, which is a common magnetic flux closed path of the resonant inductor and the main transformer, can be offset because the current of the resonant inductor and the current of the transformer are equal, and the loss of the upper surface can be offset, thereby further improving the efficiency and reducing the size of the intermediate shield core 2.
In other embodiments, the circuit connected in the same way can be added in the circuit diagram shown in fig. 7, so as to form an N-phase magnetic integrated device; in addition, in other embodiments, the top magnetic core 1, the middle partition magnetic core 2 and the bottom magnetic core 3 may be designed to be equilateral triangle on the same plane, and as shown in fig. 8, the top magnetic core 1, the middle partition magnetic core 2 and the bottom magnetic core 3 may be closely arranged and connected together, so as to reduce the volume of the whole device.
According to the three-phase magnetic integrated device, the top magnetic core, the middle partition magnetic core and the bottom magnetic core which are matched in shape and size are arranged, the top magnetic core, the middle partition magnetic core and the bottom magnetic core are sequentially laminated from top to bottom, the magnetic core middle column and the magnetic core winding column are respectively arranged on the top magnetic core and the bottom magnetic core and used for winding a winding, and meanwhile, the magnetic core winding column is provided with an air gap to prevent the whole inductance device from being saturated; compared with the prior art, the magnetic integration level is higher, and the magnetic flux of the three-phase coil in the middle column of the magnetic core and the partition plate in the magnetic core can be completely counteracted through the optimization of the magnetic circuit, so that the loss is effectively reduced; meanwhile, the contact area between the winding coil with the structure and the outside is larger, which is more beneficial to the heat dissipation of the magnetic integrated device.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that the foregoing embodiments may be modified or equivalents substituted for some of the features thereof. All equivalent structures made by the content of the specification and the drawings of the invention are directly or indirectly applied to other related technical fields, and are also within the scope of the invention.
Claims (4)
1. The three-phase magnetic integrated device is characterized by comprising a top magnetic core, a middle partition magnetic core and a bottom magnetic core which are arranged in a shape-adaptive manner, wherein the opening of the top magnetic core is downward, and the opening of the bottom magnetic core is upward; the top magnetic core is arranged right above the middle partition magnetic core, the bottom magnetic core is arranged right below the middle partition magnetic core, and the top magnetic core and the bottom magnetic core are symmetrically designed relative to the middle partition magnetic core; wherein:
The top magnetic core comprises an upper magnetic core base, a first magnetic core middle post, a second magnetic core middle post, a first magnetic core winding post, a second magnetic core winding post and a third magnetic core winding post, wherein the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are uniformly arranged on the same horizontal straight line of the upper magnetic core base, and the first magnetic core middle post and the second magnetic core middle post are respectively arranged in gaps between the second magnetic core winding post and the first magnetic core winding post as well as between the second magnetic core winding post and the third magnetic core winding post;
The bottom magnetic core comprises a lower magnetic core base, a third magnetic core middle post, a fourth magnetic core winding post, a fifth magnetic core winding post and a sixth magnetic core winding post, wherein the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post are uniformly arranged on the same horizontal straight line of the lower magnetic core base, and the third magnetic core middle post and the fourth magnetic core middle post are respectively arranged at gaps of the fifth magnetic core winding post, the fourth magnetic core winding post and the sixth magnetic core winding post;
The first magnetic core middle post and the third magnetic core middle post are symmetrically arranged, the second magnetic core middle post and the fourth magnetic core middle post are symmetrically arranged, and the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are respectively and symmetrically arranged corresponding to the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post;
the magnetic integrated device further comprises a first winding, a second winding, a third winding, a fourth winding, a fifth winding and a sixth winding, wherein designated parts of the first winding, the second winding and the third winding are wound on the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post to be used as resonance inductance, the remaining parts of the first winding, the second winding and the third winding are wound on the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post to form a transformer and serve as a primary side part of the transformer, and the fourth winding, the fifth winding and the sixth winding are wound on the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post in a superposition way to form a secondary side part of the transformer;
Or the first winding, the second winding and the third winding appointed parts are wound on the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post to be used as resonance inductance, the residual parts of the first winding, the second winding and the third winding are wound on the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post to form a transformer and serve as primary side parts of the transformer, and the fourth winding, the fifth winding and the sixth winding are wound on the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post in a superposition way to form secondary side parts of the transformer;
The first magnetic core winding post, the second magnetic core winding post, the third magnetic core winding post, the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post can be arranged in any shape; and the first magnetic core winding post, the second magnetic core winding post and the third magnetic core winding post are the same in size and shape, and the fourth magnetic core winding post, the fifth magnetic core winding post and the sixth magnetic core winding post are the same in size and shape.
2. The three-phase magnetic integrated device of claim 1, wherein the first, second and third core legs are provided with the same first air gap, and the fourth, fifth and sixth core legs are provided with the same second air gap, the first and second air gaps being used to prevent saturation of the entire magnetic integrated device.
3. The three-phase magnetic integrated device according to claim 1, wherein the first core leg, the second core leg, the third core leg, and the fourth core leg are provided in arbitrary shapes.
4. A three-phase magnetic integrated device according to any one of claims 1 to 3, wherein the middle spacer core is hollowed out and the bottom core is hollowed out for winding and outgoing of windings on the magnetic integrated device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104924.0A CN109036800B (en) | 2018-09-21 | 2018-09-21 | Three-phase magnetic integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104924.0A CN109036800B (en) | 2018-09-21 | 2018-09-21 | Three-phase magnetic integrated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109036800A CN109036800A (en) | 2018-12-18 |
| CN109036800B true CN109036800B (en) | 2024-07-12 |
Family
ID=64617354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104924.0A Active CN109036800B (en) | 2018-09-21 | 2018-09-21 | Three-phase magnetic integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109036800B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11990267B2 (en) * | 2020-09-23 | 2024-05-21 | Astec International Limited | Three-phase magnetics assembly |
| CN112117098A (en) * | 2020-10-16 | 2020-12-22 | 江苏佰迪凯磁性材料有限公司 | A multi-column special-shaped magnetic core |
| CN113871156B (en) * | 2021-09-28 | 2025-04-22 | 天津大学 | A matrix transformer based on leakage inductance control |
| CN114156041B (en) * | 2021-12-07 | 2024-01-12 | 捷蒽迪电子科技(上海)有限公司 | A kind of magnetic core structure and magnetic component |
| FR3132378A1 (en) * | 2022-02-01 | 2023-08-04 | Valeo Siemens Eautomotive France Sas | Built-in magnetic device |
| CN114649952A (en) * | 2022-03-09 | 2022-06-21 | 华为数字能源技术有限公司 | voltage converter |
| CN114974802A (en) * | 2022-05-18 | 2022-08-30 | 英飞特电子（杭州）股份有限公司 | Magnetic device, resonant circuit and LED driving power supply |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595367A (en) * | 2013-11-07 | 2014-02-19 | 华为技术有限公司 | Magnetic integrated device and power conversion circuit |
| CN104779037A (en) * | 2014-01-09 | 2015-07-15 | 台达电子企业管理（上海）有限公司 | Magnetic core structure and reactor |
| CN208834873U (en) * | 2018-09-21 | 2019-05-07 | 安徽动力源科技有限公司 | A kind of three-phase magnetic integrated device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499364B (en) * | 2008-10-20 | 2012-06-27 | 天通浙江精电科技有限公司 | Magnetic core and integrated electrical inductance |
| KR20140066837A (en) * | 2012-11-22 | 2014-06-02 | 현대중공업 주식회사 | Transformer core and transformer for wind turbine generator system with the same |
| CN105140002A (en) * | 2015-09-14 | 2015-12-09 | 广东新昇电业科技股份有限公司 | Three-phase metal magnetic powder core structure with symmetrical equivalent air gaps |
-
2018
- 2018-09-21 CN CN201811104924.0A patent/CN109036800B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595367A (en) * | 2013-11-07 | 2014-02-19 | 华为技术有限公司 | Magnetic integrated device and power conversion circuit |
| CN104779037A (en) * | 2014-01-09 | 2015-07-15 | 台达电子企业管理（上海）有限公司 | Magnetic core structure and reactor |
| CN208834873U (en) * | 2018-09-21 | 2019-05-07 | 安徽动力源科技有限公司 | A kind of three-phase magnetic integrated device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109036800A (en) | 2018-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109036800B (en) | Three-phase magnetic integrated device | |
| US12334249B2 (en) | Magnetic component and switch power supply device | |
| US10971290B2 (en) | Magnetic assembly and power supply system with same | |
| JP6985578B2 (en) | LLC resonant converter with integrated magnetic circuit | |
| US8134443B2 (en) | Extended E matrix integrated magnetics (MIM) core | |
| US9991043B2 (en) | Integrated magnetic assemblies and methods of assembling same | |
| US8072305B2 (en) | DC/DC converter | |
| US10083791B2 (en) | Integrated magnetics for soft switching converter | |
| US11270832B2 (en) | Integrated magnetic device and direct current-direct current converter | |
| CN107302298B (en) | Power supply module with two or more output voltages | |
| CN112700961A (en) | Inductor winding method for reducing power frequency magnetic flux density of coupling inductor and coupling inductor with low power frequency magnetic flux density | |
| WO2017140225A1 (en) | Magnetic integrated device and power conversion circuit | |
| CN112712980A (en) | Integrated inductor and power supply module | |
| CN110534316B (en) | Resonant transformer | |
| CN113257531A (en) | Magnetic core unit, integrated magnetic core and integrated magnetic core structure | |
| US20200211755A1 (en) | Adjustable leakage inductance transformer | |
| JP7606237B2 (en) | Power converter having segmented windings - Patents.com | |
| Iyer et al. | A half-turn winding for compact, high-current, high-turns-ratio, low-leakage-inductance transformer | |
| CN218100914U (en) | Magnetic core structure and transformer | |
| WO2012072732A2 (en) | A method for increasing power transferred by an integrated inductor and a resonant-mode power supply with an integrated inductor | |
| CN208834873U (en) | A kind of three-phase magnetic integrated device | |
| KhakparvarYazdi et al. | Low-Profile Fractional Planar Transformer Based on a Novel Infinite-shape pcb winding For 5kW Dual Active Bridge Converter | |
| CN219105893U (en) | Two-way staggered magnetic integrated inductor | |
| US20250299874A1 (en) | High power high current transformer | |
| CN217544320U (en) | An inductive device, converter circuit, printed circuit board, electronic equipment and power system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |