CN215868939U - Low-leakage-inductance integrated resonant transformer - Google Patents
Low-leakage-inductance integrated resonant transformer Download PDFInfo
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- CN215868939U CN215868939U CN202122122331.0U CN202122122331U CN215868939U CN 215868939 U CN215868939 U CN 215868939U CN 202122122331 U CN202122122331 U CN 202122122331U CN 215868939 U CN215868939 U CN 215868939U
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- magnetic core
- leakage inductance
- low leakage
- metal skin
- resonant transformer
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Abstract
The utility model discloses a low leakage inductance integrated resonance transformer, which comprises a primary coil, a secondary coil and a magnetic core, and is characterized in that: the primary coil is formed by rolling a square metal sheet from the edge to the opposite edge, the primary coil is rolled into a cylindrical structure with unsealed side edges, the metal sheet is used as a conductor, the edge and the opposite edge are respectively connected with the anode and the cathode of a power line, the secondary coil is wound outside the metal sheet, and the magnetic flux of the magnetic core passes through the inner cavity of the cylindrical metal sheet.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a low-leakage-inductance integrated resonant transformer.
Background
The current transformer structure, as shown in fig. 1, is formed by winding a primary coil 1 or a secondary coil 2 on a magnetic core 3 through a coil winding, which has the advantages of easy control of the turn ratio of the primary coil and the secondary coil, easy production and low cost, but due to the structural reason, the leakage inductance is large, as shown in fig. 2, the leakage flux 4 can leak through the gap between the primary coils 1, and is not suitable for some special occasions.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a low leakage inductance integrated resonant transformer for reducing leakage inductance.
The technical scheme of the utility model is as follows:
the utility model provides a low leakage inductance integration resonance transformer, includes primary, secondary and magnetic core, its characterized in that: the primary coil is formed by rolling a square metal skin from the edge to the opposite edge, the primary coil is rolled into a cylindrical structure with the side edge not closed, the metal skin is used as a conductor, the edge and the opposite edge of the primary coil are respectively connected with the anode and the cathode of a power line, the secondary coil is wound outside the metal skin, and the magnetic flux of the magnetic core penetrates through the inner cavity of the cylindrical metal skin.
Preferably, the metal skin is a copper skin.
Preferably, the magnetic core is a double-opening magnetic core on the same side, wherein the same side part penetrates through the inner cavity of the metal sheet.
Preferably, the dual-port magnetic core comprises an upper magnetic core and a lower magnetic core, and a gap is arranged between the upper magnetic core and the lower magnetic core.
Preferably, the width of the gap is 0.1-0.2 cm.
Preferably, the upper magnetic core and the lower magnetic core are identical in structure and size.
Preferably, the magnetic core is made of iron core.
Preferably, the length of the cylindrical primary coil wound by the metal sheath at least ensures that the wire does not protrude from the two bottom edges of the cylindrical metal sheath when the wire is wound tightly on the cylindrical metal sheath.
The utility model has the beneficial effects that: this application uses the structure that the metal skin book was made to replace the coil coiling on transformer core, very big reduction the leakage inductance.
Drawings
FIG. 1 is a schematic diagram of a prior art transformer structure;
FIG. 2 is a diagram illustrating the leakage effect of a transformer according to the prior art;
FIG. 3 is an exploded view of the transformer of the present invention;
fig. 4 is a schematic cross-sectional view of a transformer according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the features of the following embodiments and examples may be combined with each other without conflict.
As shown in fig. 3-4, a low leakage inductance integrated resonance transformer includes a primary coil 1, a secondary coil 2 and a magnetic core 3, wherein the primary coil 1 is formed by rolling a square metal sheet from a main edge 11 to an opposite edge 12, the metal sheet is rolled into a cylindrical structure with unsealed side edges, the metal sheet is used as a conductor, the main edge 11 and the opposite edge 12 are respectively connected with an anode and a cathode of a power line, the secondary coil 1 is wound outside the metal sheet, and a magnetic flux of the magnetic core 3 passes through an inner cavity of the cylindrical metal sheet. The metal sheet of this embodiment is a copper sheet.
The magnetic core of this embodiment is the diplopore formula magnetic core on same limit, and wherein the inner chamber of metal skin is passed to same limit part, and is special, and the diplopore formula magnetic core includes magnetic core and lower magnetic core, be provided with the gap between magnetic core and the lower magnetic core on going up, the width in gap is 0.1-0.2 cm.
And the upper and lower magnetic cores are identical in structure and size.
The magnetic core, the upper magnetic core, and the lower magnetic core are made of iron cores.
It should be noted that the length of the metal sheath at least ensures that the wire does not protrude from the two bottom edges of the cylindrical metal sheath when the wire is wound tightly on the metal sheath.
In addition, the length of the metal sheet can be matched with the number of windings of the secondary wire winding according to the requirement.
The transformer with the structure greatly reduces the leakage inductance.
The above embodiments are merely representative of the centralized embodiments of the present invention, and the description thereof is specific and detailed, but it should not be understood as the limitation of the scope of the present invention, and it should be noted that those skilled in the art can make various changes and modifications without departing from the spirit of the present invention, and these changes and modifications all fall into the protection scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (8)
1. The utility model provides a low leakage inductance integration resonance transformer, includes primary, secondary and magnetic core, its characterized in that: the primary coil is formed by rolling a square metal skin from the edge to the opposite edge, the primary coil is rolled into a cylindrical structure with the side edge not closed, the metal skin is used as a conductor, the edge and the opposite edge of the primary coil are respectively connected with the anode and the cathode of a power line, the secondary coil is wound outside the metal skin, and the magnetic flux of the magnetic core penetrates through the inner cavity of the cylindrical metal skin.
2. The low leakage inductance integrated resonant transformer of claim 1, wherein: the metal sheet is a copper sheet.
3. The low leakage inductance integrated resonant transformer of claim 1, wherein: the magnetic core is the diplopore formula magnetic core on the same side, wherein the portion of same side passes the inner chamber of metal skin.
4. The low leakage inductance integrated resonant transformer of claim 3, wherein: the two port type magnetic cores include magnetic core and lower magnetic core, go up the magnetic core and be provided with the gap down between the magnetic core.
5. The low leakage inductance integrated resonant transformer of claim 4, wherein: the width of the gap is 0.1-0.2 cm.
6. The low leakage inductance integrated resonant transformer of claim 4, wherein: the upper magnetic core and the lower magnetic core are identical in structure and size.
7. The low leakage inductance integrated resonant transformer of claim 1 or 3, wherein: the magnetic core is made of iron cores.
8. The low leakage inductance integrated resonant transformer of claim 1, wherein: the length of the cylindrical primary coil wound by the metal skin at least ensures that the wire does not protrude from two bottom edges of the cylindrical metal skin when the wire is wound on the cylindrical metal skin in a close manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122331.0U CN215868939U (en) | 2021-09-03 | 2021-09-03 | Low-leakage-inductance integrated resonant transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122122331.0U CN215868939U (en) | 2021-09-03 | 2021-09-03 | Low-leakage-inductance integrated resonant transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215868939U true CN215868939U (en) | 2022-02-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122122331.0U Active CN215868939U (en) | 2021-09-03 | 2021-09-03 | Low-leakage-inductance integrated resonant transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215868939U (en) |
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2021
- 2021-09-03 CN CN202122122331.0U patent/CN215868939U/en active Active
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| TR01 | Transfer of patent right |
Effective date of registration: 20220527 Address after: 710076 room 1801, 18 / F, unit 1, building 1, Greenland Central Plaza - territorial sea block AB, No. 1, Jinye Road, high tech Zone, Xi'an, Shaanxi Province Patentee after: Xi'an shijiusui Information Technology Co.,Ltd. Address before: 710000 Room 301, office building, No. 58, Gongye Second Road, national civil aerospace industry base, Xi'an, Shaanxi Province Patentee before: Xi'an Tiantong Digital Technology Co.,Ltd. |