CN217847643U - Copper foil winding, transformer and electronic equipment - Google Patents
Copper foil winding, transformer and electronic equipment Download PDFInfo
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- CN217847643U CN217847643U CN202222149602.6U CN202222149602U CN217847643U CN 217847643 U CN217847643 U CN 217847643U CN 202222149602 U CN202222149602 U CN 202222149602U CN 217847643 U CN217847643 U CN 217847643U
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Abstract
The utility model provides a copper foil winding, transformer and electronic equipment, the copper foil winding includes the winding, first terminal and second terminal, the winding has many connecting strips, the connecting strip has sector portion, first extension and second extension, the sector portion of many connecting strips radially is diffusion distribution in sector portion, the first end of first extension is connected with sector portion's first end, the first end of first extension is connected with sector portion's second end, the clearance has between two adjacent connecting strips, the first terminal is connected with the second end of every connecting strip's first extension, the second terminal is connected with the second end of every connecting strip's second extension. The transformer and the electronic equipment are both provided with the copper foil winding, and the copper foil winding can reduce alternating current loss generated by high-frequency skin effect and proximity effect.
Description
Technical Field
The utility model belongs to the technical field of the transformer technique and specifically relates to a copper foil winding and be provided with transformer and electronic equipment of this copper foil winding are related to.
Background
With the increasing frequency of transformers and the development of miniaturization and flattening of high frequency transformers, many high frequency transformers currently use copper foils instead of enameled wires. As shown in fig. 1, a structure diagram of a copper foil winding 9 commonly used in a conventional high-frequency transformer is shown, however, the copper foil winding 9 having such a structure is prone to ac loss due to a high-frequency skin effect and a proximity effect.
Disclosure of Invention
In order to solve the above problems, a main object of the present invention is to provide a copper foil winding capable of reducing ac loss due to a high-frequency skin effect and a proximity effect.
Another object of the utility model is to provide a be provided with above-mentioned copper foil winding's transformer.
It is still another object of the present invention to provide an electronic device provided with the transformer.
In order to realize the utility model discloses a main objective, the utility model provides a copper foil winding, wherein, including the winding, first terminal and second terminal, the winding has many connecting strips, the connecting strip has fan ring portion, first extension and second extension, the fan ring portion of many connecting strips radially is the diffusion in fan ring portion, the first end of first extension is connected with the first end of fan ring portion, the first end of first extension is connected with the second end of fan ring portion, the clearance has between two adjacent connecting strips, first terminal is connected with the second end of the first extension of every connecting strip, the second terminal is connected with the second end of the second extension of every connecting strip.
It is from top to bottom, through the structural design to the copper foil winding for many connecting strips are the offset and set up, and still are parallelly connected setting between many connecting strips, and then optimize single copper foil winding, replace current whole piece copper foil winding with utilizing the less connecting strip of a plurality of sectional areas, thereby reduce because of the high frequency skin effect with close on the alternating current loss that the effect produced, especially need the parallelly connected condition of multilayer copper foil winding to the heavy current, use the utility model provides a reduction alternating current loss that copper foil winding can be better.
Further, the winding, the first terminal and the second terminal are integrally formed by stamping and forming copper foils.
Therefore, the copper foil winding is manufactured by adopting an integrated punch forming process, so that the manufacturing of the copper foil winding is simpler and more convenient, and the formed connecting strips can be ensured to be always kept with gaps; each connecting bar of the winding is connected with the pins of the transformer through the first terminal and the second terminal, so that the copper foil winding is simpler and more convenient to assemble and weld; moreover, because the gaps are always kept between the connecting strips of the winding, the insulation between the connecting strips does not need to be additionally processed, and the cost is greatly reduced.
The first extension part is provided with a first arc-shaped section and a first straight line section, the first end of the first arc-shaped section is connected with the first end of the fan-shaped ring part, the second end of the first arc-shaped section is connected with the first end of the first straight line section, the second end of the first straight line section is connected with the first terminal, the first straight line sections of the connecting strips are parallel to each other, the second extension part is provided with a second arc-shaped section and a second straight line section, the first end of the second arc-shaped section is connected with the second end of the fan-shaped ring part, the second end of the second arc-shaped section is connected with the first end of the second straight line section, the second end of the second straight line section is connected with the second terminal, and the second straight line sections of the connecting strips are parallel to each other.
Therefore, the design enables the first junction between the first extending part and the sector ring part to be in smooth transition so as to avoid the first junction from being too sharp; and the second junction between the second extending part and the fan ring part can be smoothly transited so as to avoid the second junction from being too sharp.
Preferably, the number of connecting strips is between 2 and 10.
Therefore, through the quantity design of the connecting strips, the alternating current loss can be better reduced on the premise that the copper foil winding meets the use requirement.
Another preferred embodiment is that the thickness of the copper foil winding is between 0.1 mm and 0.5 mm.
It can be seen from above that, above-mentioned design makes the copper foil winding can have sufficient intensity to avoid the connecting strip of copper foil winding to break off, warp, still do benefit to the transformer that is provided with this copper foil winding simultaneously and carry out miniaturization, flattening design.
Further, the first width of the connection bar is between 1 and 5 times the thickness of the copper foil winding.
Therefore, the copper foil winding can meet the use requirement and the processing requirement due to the design.
In a further aspect, the second width of the gap is between 2 and 2.5 times the thickness of the copper foil winding.
Therefore, the cross-sectional area of the connecting strip can be better reduced on the premise that the copper foil winding meets the use requirement by the aid of the design, and accordingly alternating current loss is reduced.
In a further aspect, the first terminal is provided with a first through hole group, a first through hole of the first through hole group penetrates the first terminal in a thickness direction of the copper foil winding, the second terminal is provided with a second through hole group, and a second through hole of the second through hole group penetrates the second terminal in the thickness direction of the copper foil winding.
Therefore, the first through hole group on the first terminal and the second through hole group on the second terminal are designed to enable the copper foil winding to be more conveniently connected with the pins of the transformer, and a certain positioning effect can be achieved on the assembly of the copper foil winding.
In order to realize the utility model discloses a further purpose, the utility model provides a transformer, including magnetic core module, first pin group, second pin group and primary, primary installs in the magnetic core module, and primary's both ends are connected with first pin group respectively, and wherein, transformer include foretell copper foil winding, first terminal and second terminal respectively with second pin group link.
Therefore, the transformer with the copper foil winding can reduce the alternating current loss, and the production and assembly of the transformer are simpler and more convenient.
In order to achieve the above-mentioned objective, the present invention provides an electronic device, which includes the transformer.
Therefore, the electronic equipment provided with the transformer can reduce the alternating current loss generated in the using process.
Drawings
Fig. 1 is a structural diagram of a copper foil winding commonly used in a conventional high-frequency transformer.
Fig. 2 is a structural diagram of an embodiment of a copper foil winding according to the present invention at a first viewing angle.
Fig. 3 is a structural diagram of an embodiment of a copper foil winding according to the present invention at a second viewing angle.
Fig. 4 is a cross-sectional view of an embodiment of the copper foil winding of the present invention.
Fig. 5 is a structural diagram of an embodiment of the transformer of the present invention.
Fig. 6 is an exploded view of an embodiment of the transformer of the present invention.
The present invention will be further described with reference to the accompanying drawings and examples.
Detailed Description
Copper foil winding embodiments
Referring to fig. 2 and 3, the copper foil winding 100 includes a winding 1, a first terminal 2 and a second terminal 3, the first terminal 2 being connected to a first end of the winding 1, and the second terminal 3 being connected to a second end of the winding 1.
The winding 1 has a plurality of connection bars 1, and the connection bar 1 has a fan-shaped ring portion 11, a first extension portion 112, and a second extension portion 113. The sector ring part 11 of one connecting strip 1 has a diameter, and the sector ring parts 11 of the connecting strips 1 are in diffusion distribution in a certain radial direction R of the sector ring part 11, so that the connecting strips 1 are in offset arrangement; preferably, projections of the fan-shaped ring parts 11 of the plurality of connecting bars 1 are concentrically arranged in the thickness direction of the copper foil winding 100.
A first end of the first extension portion 112 is connected to a first end of the fan ring portion 11, and a second end of the first extension portion 112 is connected to the first terminal 2. Preferably, the first extension portion 112 has a first arc-shaped section 1121 and a first straight line section 1122, a first end of the first arc-shaped section 1121 is connected to a first end of the ring sector 11, a second end of the first arc-shaped section 1121 is connected to a first end of the first straight line section 1122, and a second end of the first straight line section 1122 is connected to the first terminal 2; the first arc-shaped section 1121 of one connection bar 1 has a radius, and in the thickness direction of the copper foil winding 100, the projections of the first arc-shaped sections 1121 of the connection bars 1 are arranged concentrically, and the first straight line sections 1122 of the connection bars 1 are parallel to each other.
A first end of the second extension portion 113 is connected to a second end of the fan-shaped ring portion 11, and a second end of the second extension portion 113 is connected to the second terminal 3. Preferably, the second extension 113 has a second arc-shaped section 1131 and a second straight section 1132, a first end of the second arc-shaped section 1131 is connected to a second end of the fan ring portion 11, a second end of the first arc-shaped section 1121 is connected to a first end of the second straight section 1132, and a second end of the second straight section 1132 is connected to the second terminal 3; wherein, the second arc 1131 of a connecting strip 1 has a radius, and in the thickness direction of the copper foil winding 100, the projections of the second arc 1131 of a plurality of connecting strips 1 are arranged concentrically, and the second straightway 1132 of a plurality of connecting strips 1 are parallel to each other. Through the design of the first extending portion 112 and the second extending portion 113, the first junction between the first extending portion 112 and the fan-shaped ring portion 11 can be smoothly transited to avoid the first junction from being too sharp, and the second junction between the second extending portion 113 and the fan-shaped ring portion 11 can be smoothly transited to avoid the second junction from being too sharp.
The number of the connecting strips 1 is preferably between 2 and 10, and the number of the connecting strips 1 is designed, so that the alternating current loss of the copper foil winding 100 can be better reduced on the premise of meeting the use requirement. In addition, a gap is formed between two adjacent connecting strips 1 to avoid mutual contact between the two adjacent connecting strips 1. Preferably, the winding 1, the first terminal 2 and the second terminal 3 are integrally formed by copper foil in a punching mode, so that the copper foil winding 100 is simpler and more convenient to manufacture, and gaps can be kept among the formed connecting strips 1 all the time; moreover, because the gap is always kept between the connecting strips 1 of the winding 1, the insulation between the connecting strips 1 does not need to be additionally processed, and the cost is greatly reduced.
The first terminal 2 is provided with a first through hole group 21, and a first through hole of the first through hole group 21 penetrates the first terminal 2 in the thickness direction of the copper foil winding 100. The second terminal 3 is provided with a second via group 31, and a second via of the second via group 31 penetrates the second terminal 3 in the thickness direction of the copper foil winding 100. The arrangement of the first terminal 2 and the second terminal 3 enables each connecting bar 1 of the winding 1 to be electrically connected with a pin of the transformer through the first terminal 2 and the second terminal 3, and therefore assembly and welding of the copper foil winding 100 are simpler and more convenient.
Referring to fig. 4, the thickness H of the copper foil winding 100 is between 0.1 mm and 0.5 mm, so that the copper foil winding 100 has sufficient strength to prevent the connection bar 1 of the copper foil winding 100 from breaking and deforming, and meanwhile, the transformer provided with the copper foil winding 100 is beneficial to miniaturization and flattening design. The first width W1 of the connecting strip 1 is preferably between 1 and 5 times the thickness H of the copper foil winding 100, i.e. the first width W1 is preferably between H and 5H, so that the copper foil winding 100 can meet the use and processing requirements. The second width W2 of the gap is between 2 times and 2.5 times of the thickness H of the copper foil winding 100, that is, the second width W2 is preferably between 2H and 2.5H, so that the cross-sectional area of the connecting bar 1 can be better reduced on the premise that the copper foil winding 100 meets the use requirement, and further, the ac loss is reduced.
To sum up, through the structural design to the copper foil winding for many connecting strips are the offset and set up, and still are parallelly connected setting between many connecting strips, and then optimize single copper foil winding to utilize the less connecting strip of a plurality of sectional areas to replace current a whole piece copper foil winding, thereby reduce because of the high frequency skin effect with close on the alternating current loss that the effect produced, especially need the parallelly connected condition of multilayer copper foil winding to the heavy current, use the utility model provides a reduction alternating current loss that copper foil winding can be better.
Embodiments of the Transformer
Referring to fig. 5 and 6, the transformer 4 includes a magnetic core module 41, a base 42, at least one primary coil 43, and at least one copper foil winding 44, wherein the copper foil winding 44 is the copper foil winding described in the above copper foil winding embodiments.
The core module 41 includes a first core 411 and a second core 412, the first core 411 and the second core 412 are connected to each other, and an accommodation cavity is formed between the first core 411 and the second core 412. The base 42 has a bottom plate 421, a first pin group 422 and a second pin group 423, the first pin group 422 and the second pin group 423 are mounted on the bottom plate 421, the second magnetic core 412 is connected with the base 42, and the second magnetic core 412 is located between the first pin group 422 and the second pin group 423.
The primary coil 43 is installed in the accommodating cavity, and two ends of the primary coil 43 are respectively connected with corresponding first pins in the first pin group 422. The copper foil module is installed in holding the intracavity, and the first terminal and the second terminal of copper foil module are connected with corresponding second pin in second pin group 423 respectively. When the number of the copper foil windings 44 is more than two, an insulation sheet 45 is arranged between two adjacent copper foil windings 44, and the two or more copper foil windings 44 are connected in parallel. Preferably, a partition 46 is disposed between adjacent one of the primary coils 43 and one of the copper foil windings 44, and the partition 46 is disposed to increase leakage inductance. By arranging the copper foil winding in the copper foil winding embodiment in the transformer 4, the alternating current loss can be reduced, and the production and assembly of the transformer 4 are simpler and more convenient.
Embodiments of the electronic device
The electronic equipment comprises the transformer in the transformer embodiment, and the electronic equipment provided with the transformer can reduce the alternating current loss generated in the using process.
Finally, it should be emphasized that the above-described embodiments are merely preferred examples of the present invention, and are not intended to limit the invention, as those skilled in the art will appreciate that various changes and modifications may be made, and any and all modifications, equivalents, and improvements made, while remaining within the spirit and principles of the present invention, are intended to be included within the scope of the present invention.
Claims (10)
1. A copper foil winding, comprising:
the winding is provided with a plurality of connecting strips, each connecting strip is provided with a sector ring part, a first extending part and a second extending part, the sector ring parts of the connecting strips are in diffusion distribution in the radial direction of the sector ring parts, the first end of the first extending part is connected with the first end of the sector ring part, the first end of the first extending part is connected with the second end of the sector ring part, and a gap is formed between every two adjacent connecting strips;
a first terminal connected to a second end of the first extension of each of the connector strips;
a second terminal connected to the second end of the second extension portion of each of the connection bars.
2. The copper foil winding of claim 1, wherein:
the winding, the first terminal and the second terminal are integrally formed by copper foil in a punching mode.
3. The copper foil winding of claim 2, wherein:
the first extending part is provided with a first arc-shaped section and a first straight line section, the first end of the first arc-shaped section is connected with the first end of the fan-shaped ring part, the second end of the first arc-shaped section is connected with the first end of the first straight line section, the second end of the first straight line section is connected with the first terminal, and the first straight line sections of the connecting strips are parallel to each other;
the second extension part is provided with a second arc-shaped section and a second straight-line section, the first end of the second arc-shaped section is connected with the second end of the fan-shaped ring part, the second end of the second arc-shaped section is connected with the first end of the second straight-line section, the second end of the second straight-line section is connected with the second terminal, and the second straight-line sections of the connecting strips are parallel to each other.
4. The copper foil winding of claim 3, wherein:
the number of the connecting strips is between 2 and 10.
5. The copper foil winding of claim 3, wherein:
the thickness of the copper foil winding is between 0.1 mm and 0.5 mm.
6. The copper foil winding of claim 5, wherein:
the first width of the connecting strip is between 1 and 5 times the thickness of the copper foil winding.
7. The copper foil winding of claim 6, wherein:
the second width of the gap is between 2 and 2.5 times the thickness of the copper foil winding.
8. The copper foil winding according to any one of claims 1 to 7, wherein:
the first terminal is provided with a first through hole group, and a first through hole of the first through hole group penetrates through the first terminal in the thickness direction of the copper foil winding;
and a second through hole group is arranged on the second terminal, and a second through hole of the second through hole group penetrates through the second terminal in the thickness direction of the copper foil winding.
9. The transformer, including magnetic core module, first pin group, second pin group and primary coil, primary coil installs in the magnetic core module, primary coil's both ends respectively with first pin group link, its characterized in that:
the transformer comprises the copper foil winding of any one of claims 1 to 8, the first terminal and the second terminal being respectively connected to the second pin group.
10. Electronic equipment, characterized in that it comprises a transformer according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222149602.6U CN217847643U (en) | 2022-08-15 | 2022-08-15 | Copper foil winding, transformer and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222149602.6U CN217847643U (en) | 2022-08-15 | 2022-08-15 | Copper foil winding, transformer and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217847643U true CN217847643U (en) | 2022-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222149602.6U Active CN217847643U (en) | 2022-08-15 | 2022-08-15 | Copper foil winding, transformer and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217847643U (en) |
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2022
- 2022-08-15 CN CN202222149602.6U patent/CN217847643U/en active Active
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