CN203456233U - Magnetic core piece - Google Patents
Magnetic core piece Download PDFInfo
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- CN203456233U CN203456233U CN201320451441.4U CN201320451441U CN203456233U CN 203456233 U CN203456233 U CN 203456233U CN 201320451441 U CN201320451441 U CN 201320451441U CN 203456233 U CN203456233 U CN 203456233U
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Abstract
The utility model discloses a magnetic core piece which comprises a strip-shaped magnetic core bottom board. The magnetic core piece is characterized in that a middle post and two side legs are integrally formed on the magnetic core bottom board; each side leg is an upright with a polygonal bottom face and each bottom face is a face formed by a first side, a second side, a third side, a fourth side and a fifth side, wherein the first side, the second side, the third side, the fourth side and the fifth side are connected end to end; the middle post is located between the two side legs and is an upright with a kidney-shaped bottom face. The magnetic core piece has the advantages that the magnetic core piece is small in size and belongs to flat type products. Due to the cambered surface design of the side legs, the magnetic core piece is convenient to assemble, the number of vortex inductors is further reduced under the condition of the same inductance in a circuit, and the purpose of cost reduction is achieved. The problem that a magnetic core is prone to cracking is solved through the thickened side legs.
Description
Technical field
The utility model relates to a kind of magnetic core piece, in particular to a kind of EPC magnetic core piece of platypelloid type.
Background technology
Magnetic core refers to a kind of sintering magnetic metal oxide by various iron oxide compositions of mixtures.For example, manganese-zinc ferrite and nickel-Zn ferrite are typical magnetic core array materials.
EPC type magnetic core is the fields such as a kind of electronics and information industry that is widely used in, electronic transformer, inductor, voltage-stabilizing voltage regulator, computer power, earth leakage circuit-breaker, electric welding machine, magnetic amplifier, choke, LED green illumination, wind energy, solar energy, 3G network, e-book, smart mobile phone, intelligent grid, Internet of Things.Wherein EPC17 is a kind of magnetic core piece being extensively used.The effective inductance of existing EPC type magnetic core is lower.
Utility model content
For solving the deficiencies in the prior art, the EPC type magnetic core piece that provides a kind of platypelloid type effective inductance high is provided the purpose of this utility model.
In order to realize above-mentioned target, the utility model adopts following technical scheme:
A magnetic core piece, comprises and it is characterized in that the magnetic core base plate of strip, and one-body molded have center pillar and two limit legs that are positioned on above-mentioned magnetic core base plate; Above-mentioned limit leg is to using polygon as the column of bottom surface, and above-mentioned bottom surface is for by article one limit, second limit, the 3rd limit, four edges and the 5th face that limit joins end to end and forms; Above-mentioned article one limit is parallel with four edges, and second limit is perpendicular to above-mentioned article one limit, and the 5th limit is parallel to above-mentioned second limit; The length on above-mentioned second limit is less than the length on above-mentioned the 5th limit, and the length of above-mentioned four edges is less than the length on above-mentioned article one limit, and above-mentioned the 3rd limit is the camber line to the bending of above-mentioned article one edge direction; Above-mentioned article one limit and second edge the edge distribution of above-mentioned magnetic core base plate; Above-mentioned center pillar is between above-mentioned two limit legs, and above-mentioned center pillar is that bottom surface is the column of kidney-shaped.
Further, above-mentioned limit leg be take the both sides of separated time above-mentioned magnetic core base plate as symmetry axis is symmetrically distributed in the long limit of above-mentioned magnetic core base plate, and above-mentioned center pillar is symmetrical about separated time in the long limit of above-mentioned magnetic core base plate.
Further, above-mentioned article one edge the broadside edge distribution of above-mentioned magnetic core base plate, and second edge the long limit edge distribution of above-mentioned magnetic core base plate, and the length on above-mentioned article one limit is greater than the width edge length of above-mentioned magnetic core base plate.
Further, two end points on above-mentioned the 3rd limit are positioned at the edge on two long limits of above-mentioned magnetic core base plate.
Further, between above-mentioned article one limit and second limit, between above-mentioned article one limit and the 5th limit, between above-mentioned four edges and the 5th limit, by fillet, connect.
Further, a straight flange of above-mentioned center pillar on above-mentioned magnetic core base plate along above-mentioned second limit along edge distribution, the distance of two straight flanges of above-mentioned center pillar is less than the width edge length of above-mentioned magnetic core base plate.
Further, above-mentioned center pillar is identical with the height of two limit legs.
Further, the length of above-mentioned magnetic core base plate is 17.6 ± 0.4mm, the total height of magnetic core is 8.55 ± 0.2mm, and the length on above-mentioned article one limit is 6.0 ± 0.2mm, and the column length of above-mentioned center pillar is 7.7 ± 0.1mm, the post of above-mentioned center pillar is wide is 2.8 ± 0.1mm, the post of above-mentioned center pillar is high is 6.05 ± 0.2mm, and the long spacing of above-mentioned limit leg is 14.3mm, and the short spacing of above-mentioned limit leg is 11.5mm, the length on above-mentioned the 5th limit is 1.15 ± 0.4mm, and the length on above-mentioned second limit is 3.05 ± 0.4mm.
Usefulness of the present utility model is: size own is little, belongs to platypelloid type product.The cambered surface design of limit leg, makes the more convenient assembling of magnetic core piece of the present utility model, in circuit, under the condition of same inductance, can also save the quantity of eddy current inductance, reaches the object reducing costs.The limit leg of thickening has also improved the problem that magnetic core easily ftractures in the past.
Accompanying drawing explanation
Fig. 1 is the perspective view of an embodiment of the present utility model;
Fig. 2 is Facad structure schematic diagram embodiment illustrated in fig. 1;
Fig. 3 is side structure schematic diagram embodiment illustrated in fig. 1;
Fig. 4 is Facad structure size schematic diagram embodiment illustrated in fig. 1;
Fig. 5 is side structure size schematic diagram embodiment illustrated in fig. 1;
Fig. 6 is the Facad structure size schematic diagram of existing EPC type magnetic core;
Fig. 7 is the side structure size schematic diagram of existing EPC type magnetic core.
The implication of Reference numeral in figure:
1-magnetic core base plate, 2-limit leg, 3-center pillar,
A-article one limit, b-second limit, the 3rd limit of c-, d-four edges, the 5th limit of e-,
The length of A-magnetic core base plate, the total height of B-magnetic core, the length on C-article one limit (being the length of limit leg), the column length of D-center pillar, the long spacing of E-limit leg, the post of F-center pillar is high, the post of G-center pillar is wide, the short spacing of H-limit leg, the length on I-second limit (being the top margin length of limit leg), the length on the 5th limit of J-(being the base length of limit leg).
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is done to concrete introduction.
A kind of magnetic core piece as shown in Figure 1 to Figure 3, comprises the magnetic core base plate 1 of strip, and one-body molded have center pillar 3 and two limit legs 2 that are positioned on magnetic core base plate 1; Limit leg 2 is to using polygon as the column of bottom surface, and bottom surface is for by article one limit a, second limit b, the 3rd limit c, four edges d and the 5th face that limit e joins end to end and forms; Article one, limit a is parallel with four edges d, and second limit b is perpendicular to article one limit a, and the 5th limit e is parallel to second limit b; The length of second limit b is less than the length of the 5th limit e, and the length of four edges d is less than the length of article one limit a, and the 3rd limit c is the camber line to a direction bending of article one limit; Article one, limit a and second limit b are along the edge distribution of magnetic core base plate 1; Center pillar 3 between two limit legs 2, center pillar 3 for bottom surface be the column of kidney-shaped.Article three, limit c is camber line, can increase winding turns so that the inner space of magnetic core piece increases, and increases magnetic permeability.
Wherein, article one limit a is along the broadside edge distribution of magnetic core base plate 1, and second limit b is along the long limit edge distribution of magnetic core base plate 1, and the length of article one limit a is greater than the width edge length of magnetic core base plate 1.Article three, two end points of limit c are positioned at the edge on two long limits of magnetic core base plate 1.
As a kind of preferred version, between article one limit a and second limit b, between article one limit a and the 5th limit e, connect not fragile like this magnetic core piece between four edges d and the 5th limit e by fillet.
A straight flange of center pillar 3 on magnetic core base plate 1 along second limit b along edge distribution, the distance of 3 two straight flanges of center pillar is less than the width edge length of magnetic core base plate 1.Center pillar 3 is identical with the height of two limit legs 2.
Magnetic core piece as shown in Figure 4, Figure 5, the length A of magnetic core base plate is 17.6 ± 0.4mm, the total height B of magnetic core is 8.55 ± 0.2mm, article one, the length C on limit (being the length of limit leg) is 6.0 ± 0.2mm, the column length D of center pillar is 7.7 ± 0.1mm, the wide G of post of center pillar is 2.8 ± 0.1mm, the high F of post of center pillar is 6.05 ± 0.2mm, the long spacing E of limit leg is 14.3mm, the short spacing H of limit leg is 11.5mm, article five, the length J(on limit is the base length of limit leg) be 1.15 ± 0.4mm, the length I(on second limit is the top margin length of limit leg) be 3.05 ± 0.4mm.By increasing the size of magnetic core piece center pillar 3 and limit leg 2, increase the effective area of magnetic core piece, increase the anti-saturation ability of magnetic core piece.
The dimensional parameters of product is as shown in table 1:
The dimensional parameters table of an embodiment of table 1 the utility model
| A | B | C | D | E | F | G | H |
| 17.6±0.4 | 8.55±0.2 | 6.0±0.2 | 7.7±0.1 | 14.3 | 6.05±0.2 | 2.8±0.1 | 11.5 |
Dimensional units: mm.
The dimensional parameters of existing EPC type magnetic core is as shown in Figure 6, Figure 7 as shown in table 2:
The dimensional parameters table of the existing EPC type of table 2 magnetic core
| A1 | B1 | C1 | D1 | E1 | F1 | G1 | H1 |
| 13.3±0.3 | 6.6±0.2 | 4.5±0.2 | 5.5±0.15 | 10.7 | 4.5±0.2 | 2.0±0.2 | 8.6 |
Dimensional units: mm.
Embodiment magnetic core piece shown in we mark the utility model Fig. 1 is product 1, and the existing EPC type magnetic core piece shown in signature 6, Fig. 7 is product 2, and the performance parameter of product is as shown in table 3:
The performance parameter table of table 3 product
| Product | Ae | Le | Ve | C1 | AL |
| |
22.07 | 38.87 | 857.9 | 1.74 | 1140nH/N 2±25% |
| |
10.58 | 28.6 | 367.8 | 2.3 | 870nH/N 2±25% |
Wherein the unit of Ae is mm
2, the unit of Le is mm, the unit of Ve is mm
3, inductance measurement condition is as follows, and frequency is 1KHz, and voltage is 300mV.
From size and performance parameter contrast, the size of magnetic core piece of the present utility model own is little, belongs to platypelloid type product; By increasing size and the intrados of magnetic core, design, when assembling product, can many coilings, increase the equivalent inductance of magnetic core piece, reduce costs; The limit leg of thickening aborning, has also improved the easily problem of cracking of EPC magnetic core.
More than show and described basic principle of the present utility model, principal character and advantage.The technical staff of the industry should understand, and above-described embodiment does not limit the utility model in any form, and all employings are equal to replaces or technical scheme that the mode of equivalent transformation obtains, all drops in protection range of the present utility model.
Claims (8)
1. a magnetic core piece, comprises and it is characterized in that the magnetic core base plate of strip, and one-body molded have center pillar and two limit legs that are positioned on above-mentioned magnetic core base plate; Above-mentioned limit leg is to using polygon as the column of bottom surface, and above-mentioned bottom surface is for by article one limit, second limit, the 3rd limit, four edges and the 5th face that limit joins end to end and forms; Above-mentioned article one limit is parallel with four edges, and second limit is perpendicular to above-mentioned article one limit, and the 5th limit is parallel to above-mentioned second limit; The length on above-mentioned second limit is less than the length on above-mentioned the 5th limit, and the length of above-mentioned four edges is less than the length on above-mentioned article one limit, and above-mentioned the 3rd limit is the camber line to the bending of above-mentioned article one edge direction; Above-mentioned article one limit and second edge the edge distribution of above-mentioned magnetic core base plate; Above-mentioned center pillar is between above-mentioned two limit legs, and above-mentioned center pillar is that bottom surface is the column of kidney-shaped.
2. a kind of magnetic core piece according to claim 1, is characterized in that, above-mentioned limit leg be take the both sides of separated time above-mentioned magnetic core base plate as symmetry axis is symmetrically distributed in the long limit of above-mentioned magnetic core base plate, and above-mentioned center pillar is symmetrical about separated time in the long limit of above-mentioned magnetic core base plate.
3. a kind of magnetic core piece according to claim 2, it is characterized in that, above-mentioned article one edge the broadside edge distribution of above-mentioned magnetic core base plate, and second edge the long limit edge distribution of above-mentioned magnetic core base plate, and the length on above-mentioned article one limit is greater than the width edge length of above-mentioned magnetic core base plate.
4. a kind of magnetic core piece according to claim 3, is characterized in that, two end points on above-mentioned the 3rd limit are positioned at the edge on two long limits of above-mentioned magnetic core base plate.
5. a kind of magnetic core piece according to claim 4, is characterized in that, between above-mentioned article one limit and second limit, between above-mentioned article one limit and the 5th limit, connect by fillet between above-mentioned four edges and the 5th limit.
6. a kind of magnetic core piece according to claim 5, it is characterized in that, a straight flange of above-mentioned center pillar on above-mentioned magnetic core base plate along above-mentioned second limit along edge distribution, the distance of two straight flanges of above-mentioned center pillar is less than the width edge length of above-mentioned magnetic core base plate.
7. according to a kind of magnetic core piece described in claim 1 to 6 any one, it is characterized in that, above-mentioned center pillar is identical with the height of two limit legs.
8. a kind of magnetic core piece according to claim 7, it is characterized in that, the length of above-mentioned magnetic core base plate is 17.6 ± 0.4mm, the total height of magnetic core is 8.55 ± 0.2mm, the length on above-mentioned article one limit is 6.0 ± 0.2mm, the column length of above-mentioned center pillar is 7.7 ± 0.1mm, the post of above-mentioned center pillar is wide is 2.8 ± 0.1mm, the post of above-mentioned center pillar is high is 6.05 ± 0.2mm, the long spacing of above-mentioned limit leg is 14.3mm, the short spacing of above-mentioned limit leg is 11.5mm, and the length on above-mentioned the 5th limit is 1.15 ± 0.4mm, and the length on above-mentioned second limit is 3.05 ± 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451441.4U CN203456233U (en) | 2013-07-26 | 2013-07-26 | Magnetic core piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320451441.4U CN203456233U (en) | 2013-07-26 | 2013-07-26 | Magnetic core piece |
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| Publication Number | Publication Date |
|---|---|
| CN203456233U true CN203456233U (en) | 2014-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320451441.4U Expired - Lifetime CN203456233U (en) | 2013-07-26 | 2013-07-26 | Magnetic core piece |
Country Status (1)
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|---|---|
| CN (1) | CN203456233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426606A (en) * | 2013-07-26 | 2013-12-04 | 鸿康磁业电子（昆山）有限公司 | Magnetic core component |
| CN103943298A (en) * | 2014-03-24 | 2014-07-23 | 鸿康磁业电子（昆山）有限公司 | Heat dissipation magnetic core |
-
2013
- 2013-07-26 CN CN201320451441.4U patent/CN203456233U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103426606A (en) * | 2013-07-26 | 2013-12-04 | 鸿康磁业电子（昆山）有限公司 | Magnetic core component |
| CN103943298A (en) * | 2014-03-24 | 2014-07-23 | 鸿康磁业电子（昆山）有限公司 | Heat dissipation magnetic core |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
|
| CX01 | Expiry of patent term |