CN203406154U - Air gap-free coupling degree-variable coupling inductor - Google Patents
Air gap-free coupling degree-variable coupling inductor Download PDFInfo
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- CN203406154U CN203406154U CN201320354510.XU CN201320354510U CN203406154U CN 203406154 U CN203406154 U CN 203406154U CN 201320354510 U CN201320354510 U CN 201320354510U CN 203406154 U CN203406154 U CN 203406154U
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- iron core
- shape iron
- shaped iron
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Abstract
The utility model provides an air gap-free coupling degree-variable coupling inductor, which comprises a U-shaped iron core and an inverted m-shaped iron core arranged inside the U-shaped iron core, wherein the inverted m-shaped iron core is connected inside the U-shaped iron core in an inverted way, column feet and the connection place are tightly fit with the U-shaped iron core; coils are wound on the U-shaped iron core and the inverted m-shaped iron core respectively; the coils, the U-shaped iron core and the inverted m-shaped iron core together make up a coupling circuit; and the cross section areas at two sides of the U-shaped iron core are more than two times of the cross section area of the inverted m-shaped iron core column feet.
Description
Technical field
The utility model belongs to coupling inductor technical equipment field, especially relates to a kind of without air gap variable coupling degree coupling inductor.
Background technology
In recent years, Switching Power Supply is more and more extensive in the application in the fields such as electric automobile, hybrid electric vehicle, uninterrupted power supply (UPS), quality of power supply adjusting, airplane power source, renewable energy power generation and superconducting energy storage.By adopting the integrated topological structure of multiphase interleaving magnetic, Switching Power Supply can increase output current and power, reduce the capacity of switching device.But when design topology, the design of coupling magnetic part has certain difficulty and challenge, the Steady state and transient state performance of crisscross parallel magnetic integrated converter and integrated magnetics degree of coupling size present the relation of opposition, and therefore reasonably the degree of coupling of integrated design magnetic part is most important for the Steady state and transient state performance of taking into account converter.
At present, for the design of coupling inductor, be more to focus on reducing magnetic part volume, weight and the consumption of minimizing material, but antagonistic relations between the degree of coupling of integrated magnetics and converter stable state, transient performance consideration not deep enough when design.
Utility model content
In order to make up above-mentioned technological deficiency, the utility model proposes a kind of without air gap variable coupling degree coupling inductor.
The technical scheme that realizes above-mentioned beneficial effect is, a kind of without air gap variable coupling degree coupling inductor, comprise " ㄩ " shape iron core and be arranged on " Ш " shape iron core in " ㄩ " shape iron core, described " Ш " shape iron core is inverted and is connected in " ㄩ " shape iron core and together with its suspension column and junction closely adhere to " ㄩ " shape iron core, on " ㄩ " shape iron core and " Ш " shape iron core, be wound with respectively coil, coil and " ㄩ " shape iron core, the both sides cross-sectional area that " Ш " shape iron core forms coupling circuit and " ㄩ " shape iron core is jointly more than the twice of " Ш " shape iron core suspension column cross-sectional area.
Described coil also comprises a phase coil, diphase winding and three-phase coil, one phase coil and three-phase coil are intertwined from " ㄩ " shape iron core both sides and left side suspension column and the right side suspension column of " Ш " shape iron core respectively, and diphase winding is wrapped in alone on three suspension columns of " Ш " shape iron core.
This novel both can be integrated for the inductance of the Switching Power Supply of traditional unidirectional operation, also can be integrated for the inductance of the crisscross parallel Switching Power Supply of the way traffic of rising in recent years, by changing the coupling inductance degree of coupling, can meet the requirement of multiphase interleaving magnetic integrated converter to integrated coupling inductor, thereby realize the integrated of Switching Power Supply, complanation, high efficiency.
" the ㄩ Ш " of this novel proposition thus shape coupling inductor changes the degree of coupling of coupling inductance in the situation that not opening air gap by changing coil windings, not only reduce magnetic resistance and the leakage inductance value of coupling inductance, also the leakage flux that has reduced coupling inductance, has reduced the electromagnetic interference to miscellaneous equipment effectively.
This is novel by the rational turn ratio of selecting iron core and design inductance, can meet the symmetry of inductance parameters, can obtain again required inductance value and inductance coupling high degree.Between each phase, adopt reverse coupled, can eliminate Partial DC magnetic bias.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of execution mode of the present utility model;
In figure, 1, " ㄩ " shape iron core; 2, " Ш " shape iron core; 3, coil; 31, a phase coil; 32, diphase winding; 33, three-phase coil; 4, suspension column; In figure, arrow represents the sense of current.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
In conjunction with Fig. 1, a kind of execution mode of the utility model.A kind of without air gap variable coupling degree coupling inductor, comprise " ㄩ " shape iron core 1 and be arranged on " Ш " shape iron core 2 in " ㄩ " shape iron core, described " Ш " shape iron core is inverted and is connected in " ㄩ " shape iron core and together with its suspension column 4 and junction closely adhere to " ㄩ " shape iron core, on " ㄩ " shape iron core and " Ш " shape iron core, be wound with respectively coil 3, coil forms coupling circuit jointly with " ㄩ " shape iron core, " Ш " shape iron core, and the both sides cross-sectional area of " ㄩ " shape iron core is more than the twice of " Ш " shape iron core suspension column cross-sectional area.In the present embodiment, described coil also comprises a phase coil 31, diphase winding 32 and three-phase coil 33, one phase coil and three-phase coil are intertwined from " ㄩ " shape iron core both sides and left side suspension column and the right side suspension column of " Ш " shape iron core respectively, and diphase winding is wrapped in alone on three suspension columns of " Ш " shape iron core.
The utility model is after considering magnetic core yoke magnetic resistance, the width of " ㄩ " font left border is larger than " Ш " font suspension column width, the both sides cross-sectional area that guarantees " ㄩ " shape iron core is more than the twice of " Ш " shape iron core suspension column cross-sectional area, because " ㄩ " shape iron core transverse amasss the cross-sectional area that is greater than " Ш " font iron core in the street, make it more meet use needs.Because " Ш " font suspension column is inverted in " ㄩ ", therefore form from left to right five iron core column, be followed successively by " ㄩ " font iron core left border, the Right Border of " Ш " font left side suspension column, central suspension column, right side suspension column and " ㄩ " font iron core.
Because designed is without air gap coupling inductance, therefore " Ш " font iron core contacts part without air gap with " U " font iron core, laminating completely.One phase coil is walked around the left frame of " ㄩ " font iron core, left side suspension column, the central suspension column of " Ш " font iron core successively, forms first-phase; Diphase winding is from left to right walked around three suspension columns of " Ш " font iron core successively, forms second-phase; Three-phase coil is walked around the left frame of " ㄩ " font iron core, right suspension column and the left suspension column of " Ш " font iron core successively, forms third phase.This novel employing adopts the canoe of reverse coupled, and the flow direction of the central suspension column of the left suspension column of described " Ш " font iron core and the flow direction of right suspension column and the left frame of " ㄩ " font iron core, " Ш " font iron core, the left frame of " ㄩ " font iron core is identical.
By adjusting, be wrapped in the variation that coil turn in each iron core column can be realized the coupling inductor degree of coupling, can also reduce leakage inductance, reduce electromagnetic interference, eliminate Partial DC magnetic bias, improve magnetic core utilance simultaneously.
The above; for better case study on implementation of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection range of technical solutions of the utility model.
Claims (2)
1. one kind without air gap variable coupling degree coupling inductor, it is characterized in that, comprise " ㄩ " shape iron core (1) and be arranged on " Ш " shape iron core (2) in " ㄩ " shape iron core, described " Ш " shape iron core is inverted and is connected in " ㄩ " shape iron core and together with its suspension column (4) and junction closely adhere to " ㄩ " shape iron core, on " ㄩ " shape iron core and " Ш " shape iron core, be wound with respectively coil (3), coil and " ㄩ " shape iron core, " Ш " shape iron core forms coupling circuit jointly, and the both sides cross-sectional area of " ㄩ " shape iron core is more than the twice of " Ш " shape iron core suspension column cross-sectional area.
2. according to claim 1 without air gap variable coupling degree coupling inductor, it is characterized in that, described coil also comprises a phase coil (31), diphase winding (32) and three-phase coil (33), one phase coil and three-phase coil are intertwined from " ㄩ " shape iron core both sides and left side suspension column and the right side suspension column of " Ш " shape iron core respectively, and diphase winding is wrapped in alone on three suspension columns of " Ш " shape iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320354510.XU CN203406154U (en) | 2013-06-20 | 2013-06-20 | Air gap-free coupling degree-variable coupling inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320354510.XU CN203406154U (en) | 2013-06-20 | 2013-06-20 | Air gap-free coupling degree-variable coupling inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203406154U true CN203406154U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320354510.XU Expired - Fee Related CN203406154U (en) | 2013-06-20 | 2013-06-20 | Air gap-free coupling degree-variable coupling inductor |
Country Status (1)
| Country | Link |
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| CN (1) | CN203406154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895302A (en) * | 2014-09-01 | 2016-08-24 | 杨玉岗 | Multiphase magnetic integration coupling inductor |
-
2013
- 2013-06-20 CN CN201320354510.XU patent/CN203406154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895302A (en) * | 2014-09-01 | 2016-08-24 | 杨玉岗 | Multiphase magnetic integration coupling inductor |
| CN105895302B (en) * | 2014-09-01 | 2019-05-28 | 杨玉岗 | A kind of integrated coupling inductor of multiphase magnetic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20140620 |
|
| EXPY | Termination of patent right or utility model |