CN204010943U - A kind of little magnetic patch is filled the flat individual pen inductance of air gap - Google Patents
A kind of little magnetic patch is filled the flat individual pen inductance of air gap Download PDFInfo
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- CN204010943U CN204010943U CN201420491832.3U CN201420491832U CN204010943U CN 204010943 U CN204010943 U CN 204010943U CN 201420491832 U CN201420491832 U CN 201420491832U CN 204010943 U CN204010943 U CN 204010943U
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- magnetic core
- air gap
- seam
- flatwise coil
- straight portion
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Abstract
The utility model relates to a kind of flat individual pen inductance of little magnetic patch filling air gap, comprise flatwise coil and magnetic core, it is block-shaped that magnetic core is that the cube of air gap seam is opened at a middle part, and make the cross section of the following magnetic core part of air gap seam be down " protruding " word shape, form two first in magnetic core bottom and dodge space; Flatwise coil is made up of the moulding that pre-bends of dogleg section under upper straight portion, both sides and two welding foot one; The maximum ga(u)ge of upper straight portion equals the thickness of magnetic core air gap seam, and the width of upper straight portion is less than the degree of depth of magnetic core air gap seam; Described flatwise coil and the combination of magnetic core inlay card, the remaining inter-air space has little magnetic patch and glue to fill, and glue filling thickness is 0.10mm; Make flatwise coil form semi-surrounding state to the following magnetic core part of air gap seam.The utility model low resistance, high permeability, low eddy current loss, there is good diamagnetic interference performance, be applicable to automated production, reduce costs.
Description
Technical field
The utility model relates to inductor art, refers in particular to a kind of flat individual pen inductance of little magnetic patch filling air gap.
Background technology
Inductance, as energy storage and filter element, is widely used in electronic equipment, and along with scientific and technical development, automatic production process requires inductor to be more and more tending towards miniaturization, and volume weight requires more and more stricter.On 02 20th, 2013, China utility model Granted publication CN 202749186 U, a kind of micro electric sensor is disclosed, include magnetic core, magnetic lid and flatwise coil, this magnetic lid and magnetic core enclose formation cavity jointly, and this flatwise coil is wound on the magnetic core that cavity is corresponding, because adopting brace, this flatwise coil forms multi-turn loop, production and processing difficulty, homogeneity of product is poor, and cost is higher.
Summary of the invention
The problem that the utility model need solve is the disappearance for prior art existence, a kind of low resistance, high permeability, low eddy current loss is provided, has the flat individual pen inductance of good diamagnetic interference performance, to be applicable to automated production, reduces costs.
To achieve these goals, the utility model is designed a kind of flat individual pen inductance of little magnetic patch filling air gap, comprise flatwise coil and magnetic core, it is characterized in that: it is block-shaped that magnetic core is that the cube of air gap seam is opened at a middle part, and make the cross section of the following magnetic core part of air gap seam be down " protruding " word shape, form two first in magnetic core bottom and dodge space; Flatwise coil is made up of the moulding that pre-bends of dogleg section under upper straight portion, both sides and two welding foot one; The maximum ga(u)ge of upper straight portion equals the thickness of magnetic core air gap seam, and the width of upper straight portion is less than the degree of depth of magnetic core air gap seam; Described flatwise coil and the combination of magnetic core inlay card, the remaining inter-air space has little magnetic patch and glue to fill, and glue filling thickness is 0.10mm; Make flatwise coil form semi-surrounding state to the following magnetic core part of air gap seam.
Described semi-surrounding state is that the upper straight portion inlay card of flatwise coil is in described magnetic core air gap seam, under both sides, dogleg section is close to the both sides of the following magnetic core part of air gap seam, and two welding foots respectively two first bottom magnetic core are dodged locus and internally turned down near magnetic core mutually.
Improvement as to such scheme: under the described corresponding flatwise coil of the following magnetic core part of air gap seam both sides, the both sides of dogleg section position are indent contraction, form two second and dodge space; While making under flatwise coil both sides the assembling of dogleg section and magnetic core, side overall leveling, takies printed circuit board area less when layout printed circuit board (pcb).
The utlity model has following characteristics:
1), inductance value can reach about 270nH, low resistance, high permeability, low eddy current loss, has good diamagnetic interference performance;
2), can under the broadband up to 30 megahertzes, use at tens hertz;
3), high, the machine operation of product automation degree, to be applicable to automated production.
In addition, the utility model structural design is simply unique, by a magnetic core and flatwise coil assembling, magnetic core air gap be often sewn on can one-shot forming out, in order to avoid open air gap below and cost-saving, production cost is low, has very high superiority of effectiveness.The utility model is dodged flatwise coil welding foot design in locus in first of magnetic core bottom, do not increase inductor integral thickness under, can reach larger terminal area, make the compactedness of product better, performance is higher.The utility model product is for example mainly used in, on information, communication and consumer product: the communication exchange devices such as notebook computer, desktop computer mainboard, 3G, CMDA, liquid crystal flat-plate television convertible frequency air-conditioner, refrigerator etc.
Brief description of the drawings
Fig. 1 is to be the utility model structural representation.
Fig. 2 is the schematic perspective view for the utility model magnetic core.
Fig. 3 is to be the utility model flatwise coil schematic perspective view.
Mark in accompanying drawing is: 1 flatwise coil; 2 magnetic cores; 3 air gap seams; The following magnetic core part of 4 air gap seam; 5 first dodge space; 6 welding foots; 7 glue; 8 second dodge space; 9 little magnetic patch.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with specific embodiment and accompanying drawing, structural principle of the present utility model is described in further detail.
As shown in Figure 1, disclosed the new structural representation of this practicality.Inductor size is 10 mm × 8 mm × 7mm; It comprises flatwise coil (1) and magnetic core (2), it is block-shaped that magnetic core (2) is that the cube of air gap seam (3) is opened at a middle part, and make the cross section of the air gap following magnetic core part of seam (4) be down " protruding " word shape, form two first in magnetic core (2) bottom and dodge space (5); Flatwise coil (1) by dogleg section under upper straight portion, both sides and two welding foots (6) one pre-bend moulding form; The maximum ga(u)ge of upper straight portion equals the thickness of magnetic core air gap seam (3), and the width of upper straight portion is less than the degree of depth of magnetic core air gap seam (3); Described flatwise coil (1) and the combination of magnetic core (2) inlay card, the remaining inter-air space has little magnetic patch (9) and glue (7) to fill, and makes flatwise coil (1) form semi-surrounding state to the air gap following magnetic core part of seam (4).
Above-mentioned semi-surrounding state is that the upper straight portion inlay card of flatwise coil (1) is in described magnetic core air gap seam (3), under both sides, dogleg section is close to the both sides of the following magnetic core part of air gap seam (4), and two welding foots (6) respectively two first bottom magnetic core (2) are dodged position, space (5) and internally turned down mutually near magnetic core (2).
The thickness of above-mentioned magnetic core air gap seam (3) is 0.6-0.8mm, and described glue (7) filling thickness is 0.10mm.
The above-mentioned air gap following magnetic core part of seam (4), under corresponding flatwise coil (1) both sides, the both sides of dogleg section position are indent contraction, form two second and dodge space (8).
Claims (4)
1. the flat individual pen inductance of one kind little magnetic patch filling air gap, comprise flatwise coil (1) and magnetic core (2), it is characterized in that: it is block-shaped that magnetic core (2) is that the cube of air gap seam (3) is opened at a middle part, and make the cross section of the air gap following magnetic core part of seam (4) be down " protruding " word shape, form two first in magnetic core (2) bottom and dodge space (5); Flatwise coil (1) by dogleg section under upper straight portion, both sides and two welding foots (6) one pre-bend moulding form; The maximum ga(u)ge of upper straight portion equals the thickness of magnetic core air gap seam (3), and the width of upper straight portion is less than the degree of depth of magnetic core air gap seam (3); Described flatwise coil (1) and the combination of magnetic core (2) inlay card, the remaining inter-air space has little magnetic patch (9) and glue (7) to fill, and makes flatwise coil (1) form semi-surrounding state to the air gap following magnetic core part of seam (4).
2. a kind of little magnetic patch according to claim 1 is filled the flat individual pen inductance of air gap, it is characterized in that: described semi-surrounding state is that the upper straight portion inlay card of flatwise coil (1) is in described magnetic core air gap seam (3), under both sides, dogleg section is close to the both sides of the following magnetic core part of air gap seam (4), and two welding foots (6) respectively two first bottom magnetic core (2) are dodged position, space (5) and internally turned down mutually near magnetic core (2).
3. a kind of little magnetic patch according to claim 1 is filled the flat individual pen inductance of air gap, it is characterized in that: the thickness of described magnetic core air gap seam (3) is 0.6-0.8mm; Described glue (7) filling thickness is 0.10mm.
4. a kind of little magnetic patch according to claim 1 is filled the flat individual pen inductance of air gap, it is characterized in that: under the described air gap seam corresponding flatwise coil of following magnetic core part (4) (1) both sides, the both sides of dogleg section position are indent contraction, form two second and dodge space (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491832.3U CN204010943U (en) | 2014-08-29 | 2014-08-29 | A kind of little magnetic patch is filled the flat individual pen inductance of air gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420491832.3U CN204010943U (en) | 2014-08-29 | 2014-08-29 | A kind of little magnetic patch is filled the flat individual pen inductance of air gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204010943U true CN204010943U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420491832.3U Expired - Fee Related CN204010943U (en) | 2014-08-29 | 2014-08-29 | A kind of little magnetic patch is filled the flat individual pen inductance of air gap |
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| Country | Link |
|---|---|
| CN (1) | CN204010943U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742036A (en) * | 2016-04-01 | 2016-07-06 | 深圳振华富电子有限公司 | Power inductor and manufacturing method therefor |
| CN106169361A (en) * | 2016-07-14 | 2016-11-30 | 国网天津市电力公司 | A kind of novel magnetic core structure promoting buoy underwater power system electromagnetic coupled efficiency |
-
2014
- 2014-08-29 CN CN201420491832.3U patent/CN204010943U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742036A (en) * | 2016-04-01 | 2016-07-06 | 深圳振华富电子有限公司 | Power inductor and manufacturing method therefor |
| CN106169361A (en) * | 2016-07-14 | 2016-11-30 | 国网天津市电力公司 | A kind of novel magnetic core structure promoting buoy underwater power system electromagnetic coupled efficiency |
| CN106169361B (en) * | 2016-07-14 | 2019-05-17 | 国网天津市电力公司 | A kind of core structure promoting buoy underwater power system electromagnetic coupling efficiency |
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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: 20141210 Termination date: 20160829 |