CN220856303U - Common mode inductance - Google Patents
Common mode inductance Download PDFInfo
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- CN220856303U CN220856303U CN202321159074.0U CN202321159074U CN220856303U CN 220856303 U CN220856303 U CN 220856303U CN 202321159074 U CN202321159074 U CN 202321159074U CN 220856303 U CN220856303 U CN 220856303U
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- 238000005192 partition Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 239000006247 magnetic powder Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides a common-mode inductor which comprises a magnetic core, a plurality of second coils and a plurality of third coils, wherein the magnetic core comprises an upper surface and a lower surface, a plurality of phase groups are arranged on the magnetic core, each phase group comprises a first phase hole, a second phase hole and a first coil, the first end of each first coil is arranged at an opening of each first phase hole and is attached to the upper surface of the magnetic core, the second end of each first coil is wound from the upper surface to the lower surface of the magnetic core for one circle and penetrates out from each second phase hole, a first connecting piece is arranged at the first end of each second coil, the first end of each second coil penetrates out from each first phase hole and is connected with the first end of each first coil through the corresponding first connecting piece, the first end of each third coil is provided with a second connecting piece, the first ends of each third coil are connected with the second ends of each first coil through the corresponding second connecting piece, the number of each second coil and each third coil is the same as the number of the phase groups, the quick assembly of the common-mode inductor is realized, and the fault tolerance and the production efficiency of manual winding are improved.
Description
Technical Field
The utility model relates to the technical field of welding, in particular to a common mode inductor.
Background
The inductor is an important component for electromagnetic conversion and plays an irreplaceable role in the power electronics industry. The usage amount of the circular ring or the annular magnetic powder core in the field of inductors is extremely large, but the annular magnetic powder core has a serious defect that rapid winding cannot be performed, the traditional method is formed by manually winding one circle, but the traditional method is only suitable for circular coils, the flat coils are quite troublesome by manually winding one circle, and the condition that products do not reach standards easily occurs, so that the manufacturing cost of the annular inductor is increased undoubtedly.
Disclosure of utility model
The main object of the present utility model is to provide a common mode inductor which solves the above technical problems.
The utility model provides a common-mode inductor which comprises a magnetic core, a plurality of second coils and a plurality of third coils, wherein the magnetic core comprises an upper surface and a lower surface, a plurality of phase groups are arranged on the magnetic core, each phase group comprises a first phase hole, a second phase hole and a first coil, the first end of each first coil is arranged at an opening of each first phase hole and is attached to the upper surface of the magnetic core, the second end of each first coil is wound from the upper surface to the lower surface of the magnetic core for one circle and penetrates out from each second phase hole, a first connecting piece is arranged at the first end of each second coil, the first end of each second coil penetrates out from each first phase hole and is connected with the first end of each first coil through each first connecting piece, a second connecting piece is arranged at the first end of each third coil, and the first ends of each third coil are connected with the second ends of each first coil through each second connecting piece, and the number of the second coils and the third coils is the same as the number of the first coils.
Preferably, both ends of the first coil are attached to the upper surface of the magnetic core, positioning holes are formed in both ends of the first coil, and a plurality of positioning columns which are respectively embedded with the positioning holes are arranged on the magnetic core, wherein the number of the positioning columns is the same as that of the phase holes.
Preferably, the first connecting piece and the second connecting piece are respectively of a protruding structure on the second coil and the third coil, and fixing holes riveted with the protruding structures are respectively formed in two ends of the first coil.
Preferably, the magnetic core is an annular magnetic column, a plurality of partition plates are arranged at the hollow position in the middle of the annular magnetic column so as to uniformly divide a plurality of cells, and the cells are phase holes.
Preferably, a plurality of limit grooves are formed in the upper surface of the magnetic core, and two ends of the first coil are respectively attached to the upper surface of the magnetic core and embedded in the corresponding limit grooves.
Preferably, the second end of the second coil and the second end of the third coil are both provided with connecting holes.
Preferably, the first coil, the second coil and the third coil are all flat copper sheets.
The utility model has the beneficial effects that: the utility model provides a common mode inductance, it includes magnetic core, a plurality of second coil and a plurality of third coil, the magnetic core includes upper surface and lower surface, be equipped with a plurality of phase group on the magnetic core, the phase group includes first phase hole, second phase hole and first coil, wherein, the first end of first coil is arranged in the opening part of first phase hole and is attached to on the upper surface of magnetic core, the second end of first coil twines once from the upper surface of magnetic core to the lower surface and wears out from the second phase hole, the first end of second coil is equipped with first connecting piece, the first end of second coil wears out and passes through first connecting piece and first end connection of first coil, the first end of third coil is equipped with the second connecting piece, the first end of third coil passes through the second connecting piece and second end connection of first coil, wherein, the quantity of second coil and third coil are all the same with the quantity of magnetic core to the upper surface ground winding one turn and wear out of second phase hole, the first end of second coil is equipped with first connecting piece and first end connection of first coil, and the fault-tolerant rate of high-speed system of common mode is realized to the same quantity.
Drawings
FIG. 1 is a schematic diagram of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic diagram of a third embodiment of the present utility model;
FIG. 4 is an exploded view of an embodiment of the present utility model;
Fig. 5 is a schematic diagram of a connection structure of a first coil, a second coil, and a third coil according to an embodiment of the utility model.
The reference numbers in the figures are as follows:
| Reference numerals | Name of the name |
| 100 | Magnetic core |
| 101 | Upper surface of |
| 102 | Lower surface of |
| 103 | Positioning column |
| 104 | Limiting groove |
| 105 | Partition plate |
| 200 | Phase group |
| 201 | First phase hole |
| 202 | Second phase hole |
| 203 | First coil |
| 2031 | Positioning hole |
| 2032 | Fixing hole |
| 300 | Second coil |
| 301 | First connecting piece |
| 400 | Third coil |
| 401 | Second connecting piece |
| 500 | Connecting hole |
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs.
The terms "first," "second," and the like in the description and in the claims, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the common mode inductor provided by the present utility model includes a magnetic core 100, a plurality of second coils 300 and a plurality of third coils 400, wherein the magnetic core 100 includes an upper surface 101 and a lower surface 102, the magnetic core 100 is provided with a plurality of phase groups 200, the phase groups 200 include a first phase hole 201, a second phase hole 202 and a first coil 203, the first end of the first coil 203 is disposed at an opening of the first phase hole 201 and is attached to the upper surface 101 of the magnetic core 100, the second end of the first coil 203 is wound from the upper surface 101 to the lower surface 102 of the magnetic core 100 by one turn and passes through the second phase hole 202, the first end of the second coil 300 is provided with a first connecting piece 301, the first end of the second coil 300 passes through the first phase hole 201 and is connected with the first end of the first coil 203 by the first connecting piece 301, the first end of the third coil 400 is provided with a second connecting piece 401, the first end of the third coil 400 is connected with the second end of the first coil 203 by the second connecting piece 401, and the second end of the second coil 203 is as many as the first coils 200.
Specifically, the magnetic core 100 is an annular magnetic column, the hollow position in the middle of the annular magnetic column is provided with a plurality of partition boards to uniformly divide a plurality of cells, the cells are phase holes, in this embodiment, the partition boards have six partition boards and are arranged by extending from the hollow center position of the annular magnetic column towards the periphery, the divided cells are all equally divided regions, the regions are phase holes and are combined with the first coil 203 in pairs to form a phase group 200, as shown in fig. 1 and 5, it can be intuitively seen that the first coil 203 is wound between the first phase hole 201, the second phase hole 202 and the two phase holes, the second coil 300 and the third coil 400 are used as structures for extending the two ends of the first coil 203, and are correspondingly used as connecting media of the first coil 203, in the practical assembly process, the second end of the first coil 203 with a U-shaped structure passes through the second phase hole 202, the first end of the first coil 203 is arranged on the outer ring of the magnetic core 100 and faces the first coil 203 to form the position of the first phase hole 201, and the first coil 203 is bent by bending equipment, the first coil 203 is wound on the first coil 203, and the second coil 203 is wound on the second coil 203 or the second coil 203 is used as a connecting medium for extending the two ends of the first coil 203, and the second coil 203 is difficult to be wound on the second coil 203.
The first coil 203, the second coil 300 and the third coil 400 are all flat copper sheets, which are obtained by press forming, stacking thickness and bending at a specified angle.
Further, two ends of the first coil 203 are attached to the upper surface 101 of the magnetic core 100, positioning holes 2031 are formed in two ends of the first coil 203, and a plurality of positioning columns 103 are formed in the magnetic core 100 and are respectively embedded in the positioning holes 2031, wherein the number of the positioning columns 103 is the same as that of the phase holes.
In this embodiment, the position of the positioning post 103 corresponds to the position of the phase hole, so that the two ends of the first coil 203 can perform an auxiliary positioning function when being bent to the upper surface of the attached magnetic core 100, and the second coil 300 and the third coil 400 cannot normally perform a connection operation with the first coil 203 due to the offset condition of the two ends or one end of the first coil 203 after being bent.
Further, in order to improve the assembly efficiency, the first connector 301 and the second connector 401 are respectively protruding structures on the second coil 300 and the third coil 400, and fixing holes 2032 riveted with the protruding structures are respectively provided on two ends of the first coil 203, so that a welding operation can be performed at the fixing holes 2032 in the following steps for enhancing the fixing effect.
Further, the upper surface 101 of the magnetic core 100 is provided with a plurality of limiting grooves 104, and two ends of the first coil 203 are respectively attached to the upper surface 101 of the magnetic core 100 and are embedded in the corresponding limiting grooves 104.
Further, the second end of the second coil 300 and the second end of the third coil 400 are provided with connection holes 500.
The foregoing is merely exemplary of the utility model, and it should be noted that modifications could be made by those skilled in the art without departing from the inventive concept, which fall within the scope of the utility model.
Claims (7)
1. A common mode inductor, comprising:
The magnetic core comprises an upper surface and a lower surface, a plurality of phase groups are arranged on the magnetic core, each phase group comprises a first phase hole, a second phase hole and a first coil, a first end of each first coil is arranged at an opening of each first phase hole and is attached to the upper surface of the magnetic core, and a second end of each first coil is wound one circle from the upper surface to the lower surface of the magnetic core and penetrates out of each second phase hole;
The first ends of the second coils are provided with first connecting pieces, and the first ends of the second coils penetrate out of the first phase holes and are connected with the first ends of the first coils through the first connecting pieces;
The first ends of the third coils are provided with second connecting pieces, and the first ends of the third coils are connected with the second ends of the first coils through the second connecting pieces;
Wherein the number of the second coils and the third coils is the same as the number of the phase groups.
2. The common-mode inductor according to claim 1, wherein both ends of the first coil are attached to an upper surface of the magnetic core, positioning holes are formed in both ends of the first coil, and a plurality of positioning posts respectively engaged with the positioning holes are formed in the magnetic core, wherein the number of the positioning posts is the same as the number of the phase holes.
3. The common mode inductor according to claim 1, wherein the first and second connection members are respectively a bump structure on the second coil and the third coil, and fixing holes are respectively provided on both ends of the first coil to rivet with the bump structure.
4. The common-mode inductor according to claim 1, wherein the magnetic core is an annular magnetic pillar, and a plurality of partition plates are provided at a hollow position in a middle part of the annular magnetic pillar to uniformly divide a plurality of cells, and the cells are phase holes.
5. The common-mode inductor of claim 1, wherein a plurality of limiting grooves are formed in the upper surface of the magnetic core, and two ends of the first coil are respectively attached to the upper surface of the magnetic core and embedded in the corresponding limiting grooves.
6. The common mode inductor of claim 1, wherein the second end of the second coil and the second end of the third coil are each provided with a connection hole.
7. The common mode inductor of claim 1 wherein the first, second and third coils are each flat copper sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321159074.0U CN220856303U (en) | 2023-05-12 | 2023-05-12 | Common mode inductance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321159074.0U CN220856303U (en) | 2023-05-12 | 2023-05-12 | Common mode inductance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220856303U true CN220856303U (en) | 2024-04-26 |
Family
ID=90781426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321159074.0U Active CN220856303U (en) | 2023-05-12 | 2023-05-12 | Common mode inductance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220856303U (en) |
-
2023
- 2023-05-12 CN CN202321159074.0U patent/CN220856303U/en active Active
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