CN204834286U - A magnetic core for charger microfilter - Google Patents
A magnetic core for charger microfilter Download PDFInfo
- Publication number
- CN204834286U CN204834286U CN201520434913.4U CN201520434913U CN204834286U CN 204834286 U CN204834286 U CN 204834286U CN 201520434913 U CN201520434913 U CN 201520434913U CN 204834286 U CN204834286 U CN 204834286U
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- Prior art keywords
- projection
- magnetic core
- charger
- lug
- magnetic
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- Expired - Fee Related
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Abstract
The utility model relates to a magnetic core for charger microfilter, this magnetic core include the magnetic core base, set up middle bar lug and symmetrical first lug and the second lug that sets up in the middle upper and lower both sides of bar lug on the magnetic core base, vertically highly the equalling of first lug and second lug, and vertical vertical height that highly is greater than first lug of middle bar lug. Compared with the prior art, the utility model discloses simple structure adopts conventional shaping mode to produce, and the processing degree of difficulty is little, and production efficiency is high, low in manufacturing cost, be used in the PCB board of smart mobile phone above, use highly lowly, can reduce PCB plate height degree, and then effectively reduce the height of charger, reduce the volume of charger, be favorable to the miniaturized production of charger.
Description
Technical field
The utility model belongs to technical field of electronic devices, relates to a kind of magnetic core for charger microfilter.
Background technology
In recent years, along with the continuous progress of the consumer electronics industry, smart mobile phone develops rapidly towards energy-saving, miniaturization, slimming, environmental protection direction.Require supporting charger for mobile phone industry as with Mobile Industry, it is also proposed higher energy-saving, slimming, miniaturization, environmental protection requirement.And the ultrathin type of smart mobile phone, miniaturized feature, also ultrathin requirement is proposed to pcb board, and the size of filter volume size to pcb board that on pcb board, magnetic core is made there is maximum effect.At present, in conventional charger industry, the conventional EE type magnetic core that magnetic core adopts usually, foreign minister's size of the type magnetic core is greater than 13mm usually, width is greater than 6mm, and due to own dimensions reason, conventional EE type magnetic core can not meet the technical need of slimming, energy-saving.
In the structured design process of charger magnetic core, the size discrete of magnetic core directly can have influence on inductance and the leakage inductance discreteness of charger, this just requires that magnetic core must be processed in strict accordance with specification, and processing dimension discreteness control will be ground within 0.05mm, this also controls to propose strict requirement to the mill processing dimension of magnetic core.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of structure simple, above the pcb board being used in smart mobile phone, can effectively reduce pcb board height, thus reduce charger whole height, effectively reduce the magnetic core for microfilter in charger of charger volume.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of magnetic core for charger microfilter, this magnetic core comprises magnetic base, is arranged on the middle bar shaped projection on magnetic base and is symmetricly set on the first projection and second projection of the middle upper and lower both sides of bar shaped projection, the first described projection is longitudinally highly equal with the second projection, and the longitudinal direction of described middle bar shaped projection is highly greater than the longitudinally height of the first projection.
The first described projection and the second projection are separately positioned on the upper/lower terminal of magnetic base along the direction perpendicular to magnetic base.
The first described projection and the cross section of the second projection are kidney-shaped cross section.
The first described projection, the transverse width of the second projection are equal with the transverse width of magnetic base.
The transverse width of described middle bar shaped projection is the transverse width 1/2 of magnetic base.
Described middle bar shaped projection is arranged on magnetic base along the edge-perpendicular of magnetic base.
The cross section of described middle bar shaped projection is rectangular cross section, and four right angle of this rectangular cross section are that arc-shaped transition connects.
Described magnetic core material is KH15.
The utility model adopts KH15 material to prepare magnetic core, and relative to KH12 or the KH10 material of routine, KH15 material has higher magnetic permeability (magnetic permeability approximately improves 30%-50%).Permeability raising just means under the requirement of equal outputting inductance, the number of turns of copper cash can be reduced, be conducive to reducing production cost, and reduce copper cash power loss, simultaneously, the lower power consumption of material just represents that the overall heating power of transformer reduces under equal operating state, is conducive to energy-conservation and improves the efficiency of transmission of filter.
Compared with prior art, the utility model has following characteristics:
1) owing to adopting KH15 material, charger in working order time, need the clutter in filtering circuit, and the KH15 material of high magnetic permeability, in working order, outputting inductance is high, can filtering clutter expeditiously;
2) core structure is simple, conventional molding mode is adopted to produce, difficulty of processing is little, and production efficiency is high, low cost of manufacture, above the pcb board being used in smart mobile phone, use highly low, pcb board height can be reduced, and then effectively reduce the height of charger, reduce the volume of charger, the miniaturization being conducive to charger is produced.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of the utility model;
Fig. 2 is the left TV structure schematic diagram of the utility model;
Description of symbols in figure:
1-magnetic base, 2-middle bar shaped projection, the 3-the first projection, the 4-the second projection.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As shown in Figure 1-2, a kind of magnetic core for charger microfilter, this magnetic core comprises magnetic base 1, is arranged on the middle bar shaped projection 2 on magnetic base 1 and is symmetricly set on the first projection 3 and the second projection 4 of the middle upper and lower both sides of bar shaped projection 2, first projection 3 is longitudinally highly equal with the second projection 4, and the longitudinal direction of middle bar shaped projection 2 is highly greater than the longitudinally height of the first projection 3.
Wherein, magnetic core material is KH15; First projection 3 and the second projection 4 are separately positioned on the upper/lower terminal of magnetic base 1 along the direction perpendicular to magnetic base 1, and the cross section of the first projection 3 and the second projection 4 is kidney-shaped cross section; The transverse width of the first projection 3, second projection 4 is equal with the transverse width of magnetic base 1.
The transverse width of middle bar shaped projection 2 is the transverse width 1/2 of magnetic base 1, and is arranged on magnetic base 1 along the edge-perpendicular of magnetic base 1; The cross section of middle bar shaped projection 2 is rectangular cross section, and four right angle of this rectangular cross section are that arc-shaped transition connects.
In practical structures size design, the height of magnetic base 1 is 7.5 ± 0.20mm, and length is 3.45 ± 0.10mm, and width is 3.1 ± 0.15mm; Wherein, first projection 3, second projection 4 is 2.55 ± 0.15mm with the length of middle projection 2, and the vertical interval between the first projection 3 and the second projection 4 is 5.3mm, the longitudinal direction of middle bar shaped projection 2 is highly 1.8 ± 0.10mm, and transverse width is 1.55 ± 0.075mm.
The classical insulation of the present embodiment magnetic core is as shown in table 1.
Table 1 magnetic core classical insulation
The present embodiment controls to propose strict requirement to the mill processing dimension of magnetic core; In outward appearance, the requirement higher than conventional products is proposed to the burr of magnetic core, flatness, degree of deformation.
Claims (8)
1. the magnetic core for charger microfilter, it is characterized in that, this magnetic core comprises magnetic base, is arranged on the middle bar shaped projection on magnetic base and is symmetricly set on the first projection and second projection of the middle upper and lower both sides of bar shaped projection, the first described projection is longitudinally highly equal with the second projection, and the longitudinal direction of described middle bar shaped projection is highly greater than the longitudinally height of the first projection.
2. a kind of magnetic core for charger microfilter according to claim 1, is characterized in that, the first described projection and the second projection are separately positioned on the upper/lower terminal of magnetic base along the direction perpendicular to magnetic base.
3. a kind of magnetic core for charger microfilter according to claim 1, is characterized in that, the first described projection and the cross section of the second projection are kidney-shaped cross section.
4. a kind of magnetic core for charger microfilter according to claim 1 or 2 or 3, is characterized in that, the first described projection, the transverse width of the second projection are equal with the transverse width of magnetic base.
5. a kind of magnetic core for charger microfilter according to claim 4, is characterized in that, the transverse width of described middle bar shaped projection is the transverse width 1/2 of magnetic base.
6. a kind of magnetic core for charger microfilter according to claim 5, is characterized in that, described middle bar shaped projection is arranged on magnetic base along the edge-perpendicular of magnetic base.
7. a kind of magnetic core for charger microfilter according to claim 6, is characterized in that, the cross section of described middle bar shaped projection is rectangular cross section, and four right angle of this rectangular cross section are that arc-shaped transition connects.
8. a kind of magnetic core for charger microfilter according to claim 1, is characterized in that, described magnetic core material is KH15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434913.4U CN204834286U (en) | 2015-06-23 | 2015-06-23 | A magnetic core for charger microfilter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434913.4U CN204834286U (en) | 2015-06-23 | 2015-06-23 | A magnetic core for charger microfilter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204834286U true CN204834286U (en) | 2015-12-02 |
Family
ID=54691858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434913.4U Expired - Fee Related CN204834286U (en) | 2015-06-23 | 2015-06-23 | A magnetic core for charger microfilter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204834286U (en) |
-
2015
- 2015-06-23 CN CN201520434913.4U patent/CN204834286U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20190623 |