CN201689757U - Inductor - Google Patents
Inductor Download PDFInfo
- Publication number
- CN201689757U CN201689757U CN200920276016XU CN200920276016U CN201689757U CN 201689757 U CN201689757 U CN 201689757U CN 200920276016X U CN200920276016X U CN 200920276016XU CN 200920276016 U CN200920276016 U CN 200920276016U CN 201689757 U CN201689757 U CN 201689757U
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- CN
- China
- Prior art keywords
- magnetic
- magnetic post
- inductor
- cylinder blocks
- cores
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an inductor with simple structure, less consumption and large energy storage to meet the requirements of a switch power supply with large power and high frequency. The inductor comprises two U-shaped magnetic cores butted in a way of mouth to mouth and coils wound on the magnetic cylinders of the two U-shaped magnetic cores and further comprises a plurality of magnetic cylinder blocks which are positioned between the butted magnetic cylinders of the two U-shaped magnetic cores; the cross sections of the magnetic cylinder blocks are same as those of the magnetic cylinders of the U-shaped magnetic cores; epoxy resin is coated between the magnetic cylinder blocks and on the contact faces of the magnetic cylinder blocks and the magnetic cylinders; and the U-shaped magnetic core and the magnetic cylinder blocks are made of ferrite.
Description
Technical field
The utility model relates to a kind of inductor, is mainly used in the high-frequency switching rectifier of communication power supply.
Background technology
In existing P FC inductance, adopt EI, EE, PQ, H type magnetic core mostly, because inductance value can not be linear change with current strength, so can't realize the Digital Control of PFC.Saturated in order to prevent, generally be on existing magnetic core, to increase an air gap, as described in Figure 1, coil (2) is wrapped in the magnetic post outside of two U type magnetic cores (1), have an air gap (3) between two U type magnetic cores (1), the inductance value on the inductor is linear change with current strength at this moment, but owing to have only an air gap, loss is big, energy storage is few, is difficult to satisfy needs high-power, high-frequency Switching Power Supply.
The utility model content
The utility model provides a kind of simple in structure, loss is little, energy storage is big inductor.Particular content is as follows:
A kind of inductor comprises two with mode butted U-shaped magnetic core mouth to mouth be wrapped in two coils on the U type magnetic core magnetic post, also comprises a plurality of magnetic post pieces, and magnetic post piece is between the butt joint magnetic post of two U type magnetic cores; The cross section of magnetic post piece is identical with the magnetic post cross section of U type magnetic core; Between the magnetic post piece, be coated with epoxy resin on the contact-making surface of magnetic post piece and magnetic post; The material of U type magnetic core and magnetic post piece is a ferrite.
The utility model has added a plurality of magnetic post pieces, has increased the quantity of air gap on the magnetic core, makes that the loss of inductor diminishes, energy storage increases.
Description of drawings
Fig. 1 is the structural representation of inductor in the prior art;
Fig. 2 is the structural representation of the utility model inductor.
What marked in the utility model accompanying drawing is labeled as: 1-U type magnetic core, 2-coil, 3-air gap, 4-magnetic post piece.
Specific embodiment
The present invention is described in detail below with reference to accompanying drawing.As shown in Figure 2, between the butt joint magnetic post of two U type magnetic cores (1), add a plurality of magnetic post pieces (4).Between the magnetic post piece (4), be coated with epoxy resin between the magnetic post of magnetic post piece (4) and U type magnetic core (1), change the size that the thickness of epoxy resin can be regulated air gap (3).Coil (2) is wrapped on butt joint magnetic post and the magnetic post piece (4).Magnetic post piece has identical cross section with the magnetic post of U type magnetic core, and the material of U type magnetic core and magnetic post piece all is a ferrite.
Adopt the utility model by adding a plurality of magnetic post pieces, increased the air gap quantity on the magnetic core, make the loss of whole inductor diminish, energy storage increases, and simple in structure, and easily processing has stronger practical value.
Above explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, above content should not be construed as restriction of the present utility model.
Claims (4)
1. inductor comprises two with mode butted U-shaped magnetic core mouth to mouth be wrapped in two coils on the U type magnetic core magnetic post, and it is characterized in that: also comprise a plurality of magnetic post pieces, magnetic post piece is between the butt joint magnetic post of two U type magnetic cores.
2. inductor according to claim 1, it is characterized in that: the cross section of magnetic post piece is identical with the magnetic post cross section of U type magnetic core.
3. inductor according to claim 1 is characterized in that: between the magnetic post piece, be coated with epoxy resin on the contact-making surface of magnetic post piece and magnetic post.
4. inductor according to claim 1, it is characterized in that: the material of U type magnetic core and magnetic post piece is a ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920276016XU CN201689757U (en) | 2009-12-03 | 2009-12-03 | Inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920276016XU CN201689757U (en) | 2009-12-03 | 2009-12-03 | Inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689757U true CN201689757U (en) | 2010-12-29 |
Family
ID=43378036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920276016XU Expired - Lifetime CN201689757U (en) | 2009-12-03 | 2009-12-03 | Inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| WO2020164084A1 (en) * | 2019-02-15 | 2020-08-20 | 佛山市顺德区伊戈尔电力科技有限公司 | Inductor |
-
2009
- 2009-12-03 CN CN200920276016XU patent/CN201689757U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| WO2020164084A1 (en) * | 2019-02-15 | 2020-08-20 | 佛山市顺德区伊戈尔电力科技有限公司 | Inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |