CN203218074U - Magnetic element - Google Patents
Magnetic element Download PDFInfo
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- CN203218074U CN203218074U CN 201320248905 CN201320248905U CN203218074U CN 203218074 U CN203218074 U CN 203218074U CN 201320248905 CN201320248905 CN 201320248905 CN 201320248905 U CN201320248905 U CN 201320248905U CN 203218074 U CN203218074 U CN 203218074U
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- 230000005291 magnetic effect Effects 0.000 title claims abstract description 262
- 239000000463 material Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 4
- 230000004907 flux Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 229910000859 α-Fe Inorganic materials 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000000696 magnetic material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
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- 230000005684 electric field Effects 0.000 description 1
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- 229920001568 phenolic resin Polymers 0.000 description 1
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Abstract
The utility model discloses a magnetic element, it includes two first plate-shaped magnetic cores, a column magnetic core, an at least wire winding group and two second plate-shaped magnetic cores. Each first plate-shaped magnetic core is provided with a first surface and a second surface which are opposite. The columnar magnetic core has two opposite side surfaces and is connected with the first plate-shaped magnetic core through the side surfaces. The area of the first surface and the second surface of each first plate-shaped magnetic core is substantially half of the area of each side surface of the columnar magnetic core. The winding group is wound on the columnar magnetic core. The second plate-shaped magnetic core is respectively arranged on the first surface and the second surface of the first plate-shaped magnetic core.
Description
Technical field
The utility model relates to a kind of passive device, in particular to a kind of magnetic element.
Background technology
The function of choke is the electric current in the stabilizing circuit and reaches the effect of filtering noise information, effect is similar with capacitor, be to store, discharge the stability that the electric energy in the circuit is regulated electric current equally, and be to come store electrical energy with the form of electric field (electric charge) compared to electric capacity, choke then is to reach with the form in magnetic field.
Fig. 1 is the schematic perspective view of existing choke.Please refer to Fig. 1, existing choke 100 has toroidal core (toroidal core) 110 and the lead 120 that is wound on the toroidal core 110.The manufacture method of choke 100 is as described below.At first, Magnaglo (not illustrating) is pressed into toroidal core 110, then with the temperature sintered ring magnetic core 110 more than 600 ℃, then in artificial mode lead 120 is wound on the toroidal core 110.Yet choke 100 needs to twine lead 120 on toroidal core 110 in artificial mode, and can't produce in the automation mode, and therefore, the processing procedure of choke 100 need expend sizable human cost.
Another kind of choke then is to comprise E shape magnetic core, drum stand and lead, and wherein lead is wound on the drum stand, and drum stand is sheathed on the E shape magnetic core.Yet, because this choke has drum stand, so have larger volume.In addition, when using this choke as transformer, owing to need carry out contraposition to two E shape magnetic cores, so in case when the contraposition precision is not enough, will makes that the inductance value variability of transformer is big, and then cause yield to descend.
Summary of the invention
The purpose of this utility model provides a kind of magnetic element, and it can be produced in the mode of automation.
The utility model proposes a kind of magnetic element, it comprises two first tabular magnetic cores, a column magnetic core, at least one coiling group and two second tabular magnetic cores.Each first tabular magnetic core has a relative first surface and a second surface.The column magnetic core has relative both side surface, and is connected with the first tabular magnetic core through above-mentioned side surface.The first surface of each first tabular magnetic core and the area of second surface are essentially half of area of each side surface of column magnetic core.The coiling group is wound on the column magnetic core.The second tabular magnetic core is disposed at respectively on the first surface and second surface of the first tabular magnetic core.
In one of the utility model embodiment, the first surface of the first above-mentioned tabular magnetic core and the both side surface of the vertical in fact column magnetic core of second surface.
In one of the utility model embodiment, each first tabular magnetic core has more two the 3rd relative surfaces, and each the 3rd surface connection first surface and second surface, and has four arc limits.
In one of the utility model embodiment, each arc limit is 1/4th circular arc.
In one of the utility model embodiment, the radius of above-mentioned circular arc is essentially half of the length of side of the side surface of column magnetic core.
In one of the utility model embodiment, the side surface of above-mentioned column magnetic core be shaped as square.
In one of the utility model embodiment, the above-mentioned first tabular magnetic core and column magnetic core are formed in one.
In one of the utility model embodiment, the second above-mentioned tabular magnetic core and the above-mentioned first tabular magnetic core moulding separately.
In one of the utility model embodiment, above-mentioned at least one coiling group is a plurality of coiling groups.
In one of the utility model embodiment, also comprise an isolated material.Isolated material is disposed between the above-mentioned coiling group.
In one of the utility model embodiment, above-mentioned magnetic element is a transformer.
Based on above-mentioned, the embodiment of the utility model comprise following advantage or effect at least one of them.In the embodiment of the utility model, because making the coiling group be wrapped in earlier, the magnetic element of present embodiment is positioned on the column magnetic core between the first tabular magnetic core, then again the second tabular magnetic core is configured on the first tabular magnetic core, so when winding the line, because there being open space comparatively convenient, thereby make the magnetic element of present embodiment to produce in the mode of automation.
State feature and advantage on the utility model and can become apparent for allowing, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Fig. 1 is the schematic perspective view of existing choke.
Fig. 2 is the part three-dimensional exploded view of the magnetic element of the utility model first embodiment.
Fig. 3 A does not contain the schematic top plan view of tabular magnetic core and coiling group for the magnetic element of Fig. 2.
Fig. 3 B does not contain the front-view schematic diagram of tabular magnetic core and coiling group for the magnetic element of Fig. 2.
Fig. 3 C does not contain the schematic side view of tabular magnetic core and coiling group for the magnetic element of Fig. 2.
Fig. 4 is the schematic perspective view after the magnetic element assembling of Fig. 2 is finished.
Fig. 5 is the schematic side view of the magnetic element of the utility model second embodiment.
Fig. 6 is the schematic side view of the magnetic element of the utility model the 3rd embodiment.
[main element symbol description]
100: choke
110: toroidal core
120: lead
200,200A, 200B: magnetic element
300: circuit board
210,240: tabular magnetic core
212: depression
220: the column magnetic core
230,232,234: the coiling group
250: isolated material
S1, S2, S5: surface
S3, S4: side surface
TE1, TE2: the two ends of coiling group
B, B1, B2: the magnetic line of force
X1, X5, X8, W: width
X2, X4, X7, X9, L: length
X3, H, H
t: thickness
C: arc limit
C1: circular arc
R: radius
O: subpoint
OD: external diameter
ID: internal diameter
Embodiment
About addressing other technologies content, characteristics and effect before the utility model, more than following cooperation reference is graphic, in the detailed description of an embodiment, can clearly present.The direction term of mentioning in following examples, for example " on ", D score, " preceding ", " back ", " left side ", " right side " etc., only be the direction with reference to annexed drawings.Therefore, the direction term of use is explanation, but not is used for limiting the utility model.
First embodiment:
Fig. 2 is the part three-dimensional exploded view of the magnetic element of the utility model first embodiment.Please refer to Fig. 2, magnetic element 200 adapts to and is used for circuit board 300, to filter unnecessary noise.As shown in Figure 2, two tabular magnetic cores 210, column magnetic core 220, at least one coiling group 230 and two tabular magnetic cores 240 up and down before and after magnetic element 200 comprises.Wherein column magnetic core 220 is between two tabular magnetic cores 210, and coiling group 230 is wound on the column magnetic core 220.In addition, the coiling group 230 of present embodiment sees through its two ends TE1, TE2 and circuit board 300 electrically connects.
At this, the partial component of the magnetic element 200 of Fig. 2 has been assembled and has been finished, and the tabular magnetic core 240 that is positioned at column magnetic core 220 tops then illustrates to decomposing with convenient explanation with other member.As shown in Figure 2, each tabular magnetic core 210 has facing surfaces S1 and surperficial S2, and wherein surperficial S1, S2 for example are respectively two surfaces up and down of tabular magnetic core 210.Tabular magnetic core 240 is disposed at respectively on the surperficial S1 and surperficial S2 of tabular magnetic core 210.In the present embodiment, up and down the width X1 of two tabular magnetic cores 240, length X 2 and thickness X 3 for example be respectively 15 millimeters (mm), 20 millimeters with 2.5 millimeters, only the utility model is not subject to this.
In the present embodiment, magnetic element 200 for example is choke (choke) or inductance (inductor).Furthermore, magnetic element 200 can be used as merit because revising (power factor correction, PFC) secondary side of choke, transformer (secondary) inductance, differential mode (difference mode) inductance or common mode (common mode) inductance etc.In addition, tabular magnetic core 210,240 and the material of column magnetic core 220 can be ferrite (ferrite) material, iron or low magnetic loss material.Ferrite (ferrite) material comprises nickel-zinc ferrite (Ni-Zn ferrite) or manganese-zinc ferrite (Mn-Zn ferrite).Furthermore, tabular magnetic core 210,240 and column magnetic core 220 can be MnZn magnetic core, ferromagnetic core (iron core), ferro-silicon-aluminium magnetic core (sendust core), noncrystalline Magnaglo magnetic core (FAA) or crooked shape magnetic core (flex core), only the utility model is not limited to this.
Fig. 3 A is the schematic top plan view that the magnetic element 200 of Fig. 2 does not contain tabular magnetic core 240 and coiling group 230, and Fig. 3 B does not contain the front-view schematic diagram of tabular magnetic core 240 and coiling group 230 for the magnetic element 200 of Fig. 2.Please refer to Fig. 2 and Fig. 3 A, column magnetic core 220 has relative both side surface S3, S4, and column magnetic core 220 is connected with tabular magnetic core 210 through side surface S3, S4.In the present embodiment, tabular magnetic core 210 can be formed in one with column magnetic core 220.In addition, the side surface S3 of column magnetic core 220 is two identical surfaces of shape size with S4, and the shape of side surface S3 and S4 can be square (shown in the oblique line part of Fig. 3 B).In addition, side surface S3, the S4 of the surperficial S1 of tabular magnetic core 210 and the vertical in fact column magnetic core 220 of surperficial S2.
Then, please refer to Fig. 3 A and Fig. 3 B, it should be noted, the surperficial S1 of tabular magnetic core 210 and the area of S2 are essentially half of area of the side surface S3 of column magnetic core 240 or S4.That is the side surface S3 of Fig. 3 B or the area of S4 are the twice of the area of the surperficial S1 of Fig. 3 A or surperficial S2.For example, length X 4 and the width X5 of the surperficial S1 of the tabular magnetic core 210 of Fig. 3 A for example are respectively 20 millimeters and 2.5 millimeters, and the length X 7 of the side surface S3 of the column magnetic core 220 of Fig. 3 B for example is all 10 millimeters with width X8.In other words, in the present embodiment, the area of side surface S3, the S4 of column magnetic core 220 for example is 100 square millimeters (mm2), and surperficial S1, the S2 of tabular magnetic core 210 for example are 50 square millimeters.
As shown in Figure 2, when the two ends of coiling group 230 TE1 and TE2 and circuit board 300 electrically connect, and circuit board 300 is when connecting with the mains (not illustrating), and magnetic element 200 can produce induced fields, and wherein the size of induced field and direction can be represented with magnetic line of force B.Please be simultaneously with reference to Fig. 2 and Fig. 3 A, in the present embodiment, magnetic line of force B the path of process be a loop, and the magnetic line of force of the side surface S3 by column magnetic core 220 two surperficial relatively S1 and the S2 of past tabular magnetic core 210 advance respectively.What deserves to be mentioned is, because the shape of the tabular magnetic core 210 of present embodiment is symmetrical in side surface S3 and the S4 of column magnetic core 220, so magnetic line of force B is after passing through side surface S3, the quantity of the magnetic line of force can divide half haply, and the direction of magnetic line of force B1, B2 is respectively towards surperficial S1 and the S2 of tabular magnetic core 210.
For example, shown in Fig. 2 and Fig. 3 A, have approximately half magnetic line of force B1 can be in regular turn surperficial S1, the tabular magnetic core 240 of top, the surperficial S1 of the tabular magnetic core 210 in rear and the side surface S4 of column magnetic core 220 of the tabular magnetic core 210 in side surface S3, the place ahead by column magnetic core 220 return in the column magnetic core 220.Second half magnetic line of force B2 then is that surperficial S2, the tabular magnetic core 240 of below, the surperficial S2 of the tabular magnetic core 210 in rear and the side surface S4 of column magnetic core 220 of the tabular magnetic core 210 in side surface S3, the place ahead by column magnetic core 220 in regular turn returns in the column magnetic core 220.In other words, the cross section that side surface S3, the S4 of column magnetic core 220 and the surperficial S1 of tabular magnetic core 210, S2 are equivalent to magnetic flux, and the summation of the magnetic flux of surperficial S1, S2 equals the magnetic flux of side surface S3, S4 in fact.
It should be noted, in the present embodiment, because the area of the surperficial S1 of tabular magnetic core 210 and S2 is essentially half of area of the side surface S3 of column magnetic core 240.That is, the area of surperficial S1 and S2 and equal side surface S3 or the S4 of column magnetic core 240 in fact.Therefore, even if surperficial S1(or surperficial S2) magnetic flux be side surface S3(or side surface S4) half, but area because surperficial S1(or the surperficial S2 of tabular magnetic core 210) also is side surface S3(or the side surface S4 of column magnetic core 240) half, so it is all identical with the magnetic flux density of surperficial S1, S2 generally speaking, to be positioned at side surface S3, S4.
Fig. 3 C does not contain the schematic side view of tabular magnetic core 240 and coiling group 230 for the magnetic element 200 of Fig. 2.Please refer to Fig. 2, Fig. 3 B and Fig. 3 C, the tabular magnetic core 210 of present embodiment has more two opposite surfaces S5, and each surperficial S5 connects surperficial S1 and surperficial S2.In addition, shown in Fig. 3 B, surperficial S5 also has four arc limit C.In the present embodiment, arc limit C can be 1/4th circular arc C 1.In detail, the center of circle of circular arc C 1 is the subpoint O of summit on surperficial S5 of side surface S3, and the radius r of circular arc C 1 is essentially half of length X 7 of the side surface S3 of column magnetic core 240.Wherein the length X 7 of side surface S3 for example is all 10 millimeters with width X8, and the radius r of circular arc C 1 for example is 5 millimeters.In addition, the length X 9 of the tabular magnetic core 210 of Fig. 3 C for example is 20 millimeters, and the thickness X 6 of column magnetic core 220 for example is 10 millimeters.In the present embodiment, the direct of travel of the magnetic line of force B of the design of above-mentioned circular arc energy derivation graph 2 is so that magnetic line of force B1 and B2 are evenly distributed in surperficial S1 and the S2 of tabular magnetic core 210.In addition, the design of circular arc can form depression 212 with the coiling group 220 of expose portion between tabular magnetic core 210 in the side of magnetic element 200, thereby helps the heat radiation of coiling group 220, and then promotes the stability of magnetic element 200.In addition, the also production of convenient tabular magnetic core 210 of the design of circular arc.
Please continue with reference to Fig. 2, what deserves to be mentioned is, the framework of the magnetic element 200 of present embodiment is convenient to make coiling group 230 to be wrapped in magnetic element 200 between the two tabular magnetic cores 210 of front and back earlier, and then with front and back up and down two tabular magnetic cores 240 be configured in surperficial S1 and the S2 of tabular magnetic core 210.Therefore, above-mentioned framework is convenient to the winding of coiling group 230, thereby the mode that magnetic element 200 can automation is produced, and then can promote production capacity.In other words, the magnetic element 200 of present embodiment is packaging magnetic element, and wherein tabular magnetic core 240 is moulding separately with tabular magnetic core 210.Therefore, tabular magnetic core 240 can just be configured in above the column magnetic core 220 after coiling finishes, and is wound on the column magnetic core 220 so the framework of the magnetic element 200 of present embodiment is conducive to coiling group 230.
Table one is the comparison sheet of the magnetic element of the different enforcement aspects with present embodiment of choke 100 of existing different size.It should be noted, listed data information is not in order to limit the utility model in the following table one, have in the technical field under any and know the knowledgeable usually after reference the utility model, its parameter or setting are done suitable change, must belong in the category of the utility model.
(table)
| Choke 100 | A L | OD（mm） | ID（mm） | H t（mm） | l e（cm） | A e（cm 2） | V（cm 3） |
| Type one | 32 | 21.1 | 12.07 | 7.11 | 5.09 | 0.226 | 1.15 |
| Type two | 43 | 23.62 | 13.9 | 8.38 | 5.67 | 0.331 | 1.88 |
| Type three | 51 | 24.3 | 13.77 | 9.7 | 5.88 | 0.388 | 2.28 |
| Type four | 75 | 27.7 | 14.1 | 11.99 | 6.35 | 0.654 | 4.15 |
| Type five | 61 | 33.83 | 19.3 | 11.61 | 8.15 | 0.672 | 5.48 |
| |
A L | L（mm） | W（mm） | H（mm） | l e（cm） | A e（cm 2） | V（cm 3） |
| Implement aspect one | 165 | 25 | 20 | 15 | 4.25 | 0.95 | 4.00 |
| Implement aspect two | 203 | 30 | 25 | 15 | 5.1 | 1.4 | 7.10 |
In Table 1, parameter OD, ID and H
tBe respectively external diameter, internal diameter and the thickness of the toroidal core 110 of Fig. 1, parameter L, W, H then are respectively length, width and the thickness of the magnetic element 200 of Fig. 4, and wherein Fig. 4 is the schematic perspective view of magnetic element 200 assembling of Fig. 2 after finishing.In addition, V parameter then is the volume of the magnetic element 200 of existing choke 100 or present embodiment.
In addition, parameter l
eWith A
eBe respectively the sensibility reciprocal of the magnetic element 200 magnetic loop length of existing choke 100 or present embodiment and magnetic flux sectional area, parameter A wherein
LBe inductance coefficent.Inductance coefficent A
LIn order to the sensibility reciprocal (μ H) of weighing magnetic element.In detail, inductance coefficent A
LMore big, then sensibility reciprocal can be more big, wherein inductance coefficent A
LAvailable following formula is represented:
μ wherein
rBe the permeability (permeability) of magnetic material, and μ
0Permeability for vacuum.In Table 1, the permeability of magnetic material for example is 60.By following formula as can be known, the inductance coefficent A of magnetic material
LBe with magnetic flux sectional area A
eIncrease and increase, and with the magnetic loop length l
eMinimizing and increase.Therefore, preferable magnetic material need have short magnetic loop length l usually
eAnd bigger magnetic flux sectional area A
e, bigger inductance coefficent A just can be provided
L
As shown in Table 1, the magnetic element 200 of present embodiment has higher magnetic flux sectional area A compared to existing choke 100
e, so bigger inductance coefficent A can be provided
L, thereby more sensibility reciprocal can be provided.In other words, under the much the same situation of the two volume, 200 sensibility reciprocals that can provide of the magnetic element of present embodiment are higher.In addition, compared to the magnetic element of E shape magnetic core, the magnetic loop length of the magnetic element 200 of present embodiment is also shorter, so more sensibility reciprocal can be provided.In addition, because magnetic element 200 is to adopt coiling earlier to assemble again, so compared to existing technologies, the coiling step of the making magnetic element 200 of present embodiment can be reached in the mode of automation, thereby can save cost of manufacture.
Second embodiment:
Fig. 5 is the schematic side view of the magnetic element 200A of the utility model second embodiment.The magnetic element 200A of Fig. 5 and the magnetic element 200 of Fig. 2 are similar, and only magnetic element 200A and magnetic element 200 main difference parts are: magnetic element 200A comprises that a plurality of coiling groups 232 only schematically illustrate two with 234().In other words, the magnetic element 200A of present embodiment quite is two inductance, and two inductance difference corresponding coiling group 232 and 234.Because the schematic perspective view of magnetic element 200A can be with reference to Fig. 2, and the detailed description of magnetic element 200A can be with reference to first embodiment, so do not repeat them here.
The 3rd embodiment:
Fig. 6 is the schematic side view of the magnetic element 200B of the utility model the 3rd embodiment.The magnetic element 200B of Fig. 6 and the magnetic element 200A of Fig. 5 are similar, and only magnetic element 200B and the main difference part of magnetic element 200A are: magnetic element 200B also comprises isolated material 250.Isolated material 250 is disposed between coiling group 232 and 234.Specifically, isolated material 250 is disposed on the coiling group 232, and coiling group 234 is disposed on the isolated material 250.In other words, the magnetic element 200B of present embodiment quite is transformer.In addition, the material of isolated material 250 can be dielectric material, bakelite material, for example: epoxy resin (Epoxy), polyimides (Polyimide resin), phenolic resins (PF) etc.Because the schematic perspective view of magnetic element 200B can be with reference to Fig. 2, and the detailed description of magnetic element 200B can be with reference to first embodiment, so do not repeat them here.
In sum, the embodiment of the utility model comprise following advantage or effect at least one of them.In the embodiment of the utility model, because magnetic element is packaging magnetic element, its can make the coiling group be wound in earlier before and after column magnetic core between the two tabular magnetic cores, and then up and down two tabular magnetic cores are configured in the relative both sides of column magnetic core, the advantage easily so magnetic element of present embodiment winds the line, thus can produce in the automation mode.In addition, because the tabular magnetic core of both sides, back has the arc design before the present embodiment, thus can expose the part drum stand between the two, thus the effect of good heat radiating is arranged.
In addition, compared to existing choke, because the coiling group of present embodiment is directly to be wrapped on the column magnetic core, so compared to existing choke with E shape magnetic core, lacked the member of drum stand.Therefore, the volume of the magnetic element of present embodiment is less.In addition, the magnetic loop length of the magnetic element of present embodiment is also come shortly than E shape magnetic core, so bigger sensibility reciprocal can be provided.In addition, when the magnetic element of using present embodiment during as transformer, do not have the problem of deficiency of the contraposition precision of existing E shape magnetic core yet.
Moreover, because the magnetic element of present embodiment has preferable magnetic flux area compared to existing choke or toroidal core, so big sensibility reciprocal can be provided under the situation of equal volume.
Though the utility model discloses as above with embodiment; so it is not in order to limit the utility model; have in the technical field under any and know the knowledgeable usually; in the spirit and scope that do not break away from the utility model; when doing a little change and retouching, so the protection range of the utility model attached claim person of defining after looking is as the criterion.
Claims (11)
1. a magnetic element is characterized in that, comprising:
Two first tabular magnetic cores, each first tabular magnetic core has a relative first surface and a second surface;
One column magnetic core has relative both side surface, and sees through those side surfaces and be connected with those first tabular magnetic cores, and wherein the area of the first surface of each first tabular magnetic core and second surface is essentially half of area of each side surface of this column magnetic core;
At least one coiling group is wound on this column magnetic core; And
Two second tabular magnetic cores are disposed at respectively on the first surface and second surface of those first tabular magnetic cores.
2. magnetic element as claimed in claim 1 is characterized in that, those side surfaces of the first surface of those first tabular magnetic cores and vertical in fact this column magnetic core of second surface.
3. magnetic element as claimed in claim 1 is characterized in that, each first tabular magnetic core has more two the 3rd relative surfaces, and each the 3rd surface this first surface of connection and this second surface, and has four arc limits.
4. magnetic element as claimed in claim 3 is characterized in that, each arc limit is 1/4th circular arc.
5. magnetic element as claimed in claim 4 is characterized in that, the radius of this circular arc is essentially half of the length of side of the side surface of this column magnetic core.
6. magnetic element as claimed in claim 1 is characterized in that, the side surface of this column magnetic core be shaped as square.
7. magnetic element as claimed in claim 1 is characterized in that, those first tabular magnetic cores and this column magnetic core are one-body molded.
8. magnetic element as claimed in claim 1 is characterized in that, those second tabular magnetic cores and those first tabular magnetic core moulding separately.
9. magnetic element as claimed in claim 1 is characterized in that, this at least one coiling group is a plurality of coiling groups.
10. magnetic element as claimed in claim 9 is characterized in that, also comprises an isolated material, is disposed between those coiling groups.
11. magnetic element as claimed in claim 10 is characterized in that, this magnetic element is a transformer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW101208854 | 2012-05-10 | ||
| TW101208854U TWM439247U (en) | 2012-05-10 | 2012-05-10 | Magnetic element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218074U true CN203218074U (en) | 2013-09-25 |
Family
ID=47719450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320248905 Expired - Fee Related CN203218074U (en) | 2012-05-10 | 2013-05-06 | Magnetic element |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN203218074U (en) |
| TW (1) | TWM439247U (en) |
-
2012
- 2012-05-10 TW TW101208854U patent/TWM439247U/en not_active IP Right Cessation
-
2013
- 2013-05-06 CN CN 201320248905 patent/CN203218074U/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TWM439247U (en) | 2012-10-11 |
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