CN103779040A - High-power density inductor - Google Patents
High-power density inductor Download PDFInfo
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- CN103779040A CN103779040A CN201410048700.8A CN201410048700A CN103779040A CN 103779040 A CN103779040 A CN 103779040A CN 201410048700 A CN201410048700 A CN 201410048700A CN 103779040 A CN103779040 A CN 103779040A
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- copper wire
- flat copper
- inductor
- magnetic ring
- magnet ring
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Abstract
The invention relates to a high-power density inductor, which belongs to the field of inductors. The inductor comprises a magnetic ring, a framework and frequency pins. The inductor is characterized in that a flat copper wire coil is wound on the rectangular magnetic ring, the rectangular magnetic ring which is provided with the flat copper wire coil is fixed on the framework, the frequency pins are fixed in four corners of the framework, and both ends of the flat copper wire coil are respectively welded on the closest frequency pins on the framework. According to the invention, the copper wire is changed into a flat wire with certain thickness from the traditional round wire; the coil can be densely wound, enables high current to pass and has high power density, and meanwhile, the coil is small in leakage inductance and good in anti-EMI effects; the inductive magnetic ring of the inductor is changed into an integrated rectangle from two n shapes in the traditional inductive magnetic ring, and then, the magnetic ring is small in leakage magnetism, high in inductance value and good in anti-EMI effects. The inductor is wound by the flat copper wire from the traditional multiple strands of copper wires, and then, the volume is reduced, thereby achieving a super-thin inductor.
Description
Technical field
The present invention relates to inductance field, say in detail it is a kind of ultra-thin high-capacity density inductance.
Background technology
Well-known: along with Switching Power Supply is to high frequency, high power density, high reliability, high integration development, EMI inductance have been proposed to higher designing requirement.
Inductance is one of passive component often using in Switching Power Supply product.Pursuing in light, thin, short, the little effort of electric product, it is but an insoluble problem that the volume of thinking reduced inductance is taken into account electrical characteristic simultaneously always.
Tradition is with the inductance of circular copper cash design, because copper cash is the circle coil that the forms most volumes in inductance that will account for that cause reeling, and the space that can form between circumference and circumference in a few stacked coils increases, cause inductance leakage inductance to increase, have a strong impact on EMI filter effect.In the time increasing input current, just must increase copper wire winding number of share of stock, and then more increase inductance leakage inductance and reduced area of dissipation.
Summary of the invention
Object of the present invention is just to overcome prior art deficiency, provides that a kind of cost is low, power density is high, leakage inductance is little, the inductance of thickness ultrathin.
The technical solution adopted for the present invention to solve the technical problems is: a kind of high power density inductance, comprise magnet ring, skeleton, frequency pin, it is characterized in that, flat copper wire coil winding is to rectangle magnet ring, rectangle magnet ring with flat copper wire coil is fixed on skeleton, frequently pin is fixed on four angles of skeleton, and the two ends of flat copper wire coil are welded on respectively on frequency pin nearest on skeleton.
The present invention also can be achieved by the following measures: flat copper wire coil is closely wound and is formed by a thin slice copper cash parallel circle circle.Rectangle magnet ring is an entirety, has two flat copper wire coils respectively on two long limits of rectangle magnet ring.
The invention has the beneficial effects as follows, copper cash changes certain thickness flat wire into by traditional round line, coil can be close around, can lead to super-high-current, power density is high, coil leakage inductance is little simultaneously, anti-EMI is effective; Inductance magnet ring changes an Integral rectangular into by 2 ∏ types of tradition, and magnet ring leakage field is few, and inductance value is high, anti-EMI better effects if; Inductance changes flat copper wire coiling into by the circular copper cash of traditional multiply, and volume reduces, and inductance can be accomplished ultrathin.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is front view of the present invention.
Fig. 2 is end view of the present invention.
Fig. 3 is vertical view of the present invention.
Fig. 4 is skeleton front view of the present invention.
Fig. 5 is skeleton end view of the present invention.
Fig. 6 is skeleton vertical view of the present invention.
Fig. 7 is rectangle magnet ring vertical view of the present invention.
Fig. 8 is assembling schematic diagram of the present invention.
1. skeletons in figure, 2. coil, 3. magnet ring, 4. frequency pin.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, to help understanding content of the present invention.
In Fig. 1-Fig. 8, the new flat copper wire coil 2 of this practicality is wound on rectangle magnet ring 3, be fixed on skeleton 1 with the rectangle magnet ring 3 of flat copper wire coil 2, flat copper wire coil 2 is closely wound and is formed by a thin slice copper cash parallel circle circle, flat copper wire coil 2 numbers of turn are determined according to the length of skeleton 1, rectangle magnet ring 3 is an entirety, there are two flat copper wire coils 2 respectively on two long limits of rectangle magnet ring 3, skeleton 1 will be according to the overall dimension design of rectangle magnet ring 3, must guarantee flat copper wire coil 2 on skeleton 1 close around, rectangle magnet ring 3 is an entirety, its size determines according to inductance value.Frequently pin 4 is fixed on four angles of skeleton 1, and the two ends of flat copper wire coil 2 are welded on respectively on frequency pin 4 nearest on skeleton 1.When the present invention makes at inductance, first rectangle magnet ring 3 is fixed on coil winding machine, flat copper wire, directly around to rectangle magnet ring 3, is then placed into the rectangle magnet ring 3 with flat copper wire coil 2 on skeleton 1, and the two ends of last flat copper wire coil 2 are welded to respectively on nearest frequency pin 4.
Claims (3)
1. a high power density inductance, comprise magnet ring, skeleton, frequency pin, it is characterized in that: flat copper wire coil winding is to rectangle magnet ring, rectangle magnet ring with flat copper wire coil is fixed on skeleton, frequently pin is fixed on four angles of skeleton, and the two ends of flat copper wire coil are welded on respectively on frequency pin nearest on skeleton.
2. high power density inductance according to claim 1, is characterized in that described flat copper wire coil is closely wound and is formed by a thin slice copper cash parallel circle circle.
3. high power density inductance according to claim 1, is characterized in that described rectangle magnet ring is an entirety, has two flat copper wire coils respectively on two long limits of rectangle magnet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048700.8A CN103779040A (en) | 2014-02-12 | 2014-02-12 | High-power density inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410048700.8A CN103779040A (en) | 2014-02-12 | 2014-02-12 | High-power density inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103779040A true CN103779040A (en) | 2014-05-07 |
Family
ID=50571185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410048700.8A Pending CN103779040A (en) | 2014-02-12 | 2014-02-12 | High-power density inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103779040A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332276A (en) * | 2014-10-28 | 2015-02-04 | 田村（中国）企业管理有限公司 | Multilayer vertically-wound inductor |
| CN110867307A (en) * | 2019-10-07 | 2020-03-06 | 深圳市金威源科技股份有限公司 | Inductor and preparation method thereof |
-
2014
- 2014-02-12 CN CN201410048700.8A patent/CN103779040A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332276A (en) * | 2014-10-28 | 2015-02-04 | 田村（中国）企业管理有限公司 | Multilayer vertically-wound inductor |
| CN110867307A (en) * | 2019-10-07 | 2020-03-06 | 深圳市金威源科技股份有限公司 | Inductor and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140507 |