CN105719786A - Inductor structure - Google Patents
Inductor structure Download PDFInfo
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- CN105719786A CN105719786A CN201410735486.3A CN201410735486A CN105719786A CN 105719786 A CN105719786 A CN 105719786A CN 201410735486 A CN201410735486 A CN 201410735486A CN 105719786 A CN105719786 A CN 105719786A
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- Prior art keywords
- iron core
- coil
- center pillar
- induction structure
- air gap
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Abstract
The invention provides an inductor structure. The inductor structure is provided with a substrate and a magnetic element, wherein the magnetic element is provided with a flat iron core group, a first coil and a second coil; the flat iron core group is provided with a first iron core and a second iron core; the first iron core is provided with two side columns and a middle column; the second iron core is coupled with the two side columns of the first iron core; an air gap is formed between the middle column and the second iron core; the first coil is wound around the middle column; and the second coil is wound around the side columns, wherein the winding directions of the first coil and the second coil are parallel to the surface of the substrate.
Description
Technical field
The present invention is about a kind of its internal magnetic element of electrical installation configuration and structure.
Background technology
Development in science and technology is rapid now, running gear is indispensable electronic equipment in life gradually, such as mobile phone, flat board and Wearable device etc., for increasing running gear portability and convenience, major technique reduces its size emphatically, and only battery storage electricity also reduces, and running gear charge requirement improves, therefore often sample product all must be equipped with a transformator, in order to charging.Known transformator has to a certain degree volume, and its ultimate challenge system occupies certain space because of two kinds of main elements of inside transformer, causes that integrated transformers cannot be reduced, and wherein an element is electric capacity, and another element is inductance.Inductance ultimate principle, is be wound around on magnetic material by coil, and inductance value is wound around the number of turn to its coil and is directly proportional, and is intended to improve inductance value, can complete by increasing the number of turn, only increase coil turn and magnetic resistance also can be made to improve, and the heat energy of generation can cause that magnetics is damaged.
Refer to Fig. 1 and Fig. 2, the schematic diagram of its known charger internal inductance element and plan view, inductance element comprises two iron core 90 and coils 80, this iron core comprises left and right sidewall 91 and a center pillar 92, External Observation is depending on presenting an E font, coil 80 is wound in the center pillar 92 of two iron cores 90, and has an air gap 70 between two iron core middle columns 92.The inductance element of known transformator has the disadvantage that, is intended to increase inductance value, then need to increase coil turn, or have not Co-wound coil or wire diameter demand time, it is necessary to by coil around stacking, only coil array around center pillar and expands outwardly, now being subject to the impact of iron core sidewall, coil turn is also restricted.Additionally, heat energy will be made to increase as it was previously stated, increase the number of turn, for avoiding iron core to damage because of overheated damage, its sidewall must keep suitable thickness, now during two iron core couplings, anyway arranges, all occupy certain volume so that inductance element cannot micro, volume of transformer also with.Additionally, known techniques designs an air gap between iron core avoids magnetic saturation, only air gap is likely to bring the problem of impairment in leakage inductance and usefulness.
In sum, for reducing volume of transformer, for iron core and the coiling thereof of inductance element, it is necessary to do further improvement, make, in inductance reliability lifting situation, also to reduce and take up space.
Summary of the invention
Offer one induction structure is provided, reduces its internal magnetic element and taken up space.
The secondary objective of the present invention is in that to provide an induction structure so that it is the coil of internal magnetic element is not around by the restriction of iron core.
The secondary objective of the present invention is in that to provide an induction structure, reduces the loss in the leakage field of its internal magnetic element and usefulness.
The secondary objective of the present invention is in that to provide an induction structure, effectively configures its internal magnetic element, reduces magnetics and plug bond length, increases device reliability.
For reaching above-mentioned censured each purpose and effect, the invention discloses a kind of induction structure, comprise: substrate and magnetics；Magnetics comprises flat iron core group, first coil and the second coil；Additionally, flat iron core group more comprises: the first iron core and the second iron core.
The present invention is in one embodiment, magnetics lies low and is arranged on substrate, first iron core has two side columns and a center pillar, second iron core and two side columns couple, and the surface of center pillar and the second iron core forms an air gap, and first coil is around center pillar, and around scope without lid center pillar end, second coil is around a wherein lateral column, and first coil is parallel with this substrate surface around direction with the second coil, thereby reduces magnetics volume.
In another embodiment, the second iron core surface has recess, recess geometry correspondence center pillar end geometry to the present invention, makes air gap be formed between recess.
The present invention is in another embodiment, first coil and the second coil can be formed by multiple pcb board storehouses, the plurality of pcb board has the first perforation and the second perforation, first perforation and the second perforation around have annular cabling, and the first iron core is arranged in the first perforation and the second perforation, and annular cabling is such as first coil and the second coil.
Accompanying drawing explanation
Fig. 1: it is known techniques magnetics schematic diagram；
Fig. 2: it is known techniques magnetics plan view；
Fig. 3: it is a preferred embodiment induction structure schematic diagram of the present invention；
Fig. 4: it is present pre-ferred embodiments magnetics schematic diagram；
Fig. 5: it is present pre-ferred embodiments magnetics plan view；
Fig. 6: it is the air gap schematic diagram of another preferred embodiment of the present invention；
Fig. 7: it is the air gap schematic diagram of another preferred embodiment of the present invention；
Fig. 8: it is another preferred embodiment magnetics plan view of the present invention；
Fig. 9: it is another preferred embodiment magnetics plan view of the present invention；
Figure 10: it is the magnetics schematic diagram of another preferred embodiment of the present invention.
[figure number is to as directed]
10 substrates
20 magneticss
201 flat iron core group
2011 first iron cores
20111 lateral columns
20112 center pillars
2012 second iron cores
202 first coils
203 second coils
204 air gaps
205PCB plate
2051 first perforation
2052 second perforation
2053 first annular cablings
2054 second annular cablings
70 air gaps
80 coils
90 iron cores
91 sidewalls
92 center pillars
L is around direction
Detailed description of the invention
In order to the architectural feature making the present invention and effect of reaching have a better understanding and awareness, spy's preferred embodiment and coordinate detailed description, illustrate as follows:
Refer to Fig. 3, it is a preferred embodiment induction structure schematic diagram of the present invention, in the lump with reference to Fig. 4, for a preferred embodiment magnetics schematic diagram of the present invention；As it can be seen, the induction structure of the present invention, it comprises: substrate 10 and magnetics 20, and magnetics 20 comprises: flat iron core group 201, first coil 202 and the second coil 203；Additionally, flat iron core group 201 more comprises: the first iron core 2011 and the second iron core 2012.
Please with reference to Fig. 5, it is the plan view of magnetics of the present invention, the magnetics 20 of the present invention is arranged on substrate 10, wherein the first iron core 2011 has two side columns 20111 and a center pillar 20112, first iron core 2011 outward appearance presents an E font, and the second iron core 2012 couples the two side columns 20111 of the first iron core 2011, and the second iron core 2012 outward appearance presents an I font, and between center pillar 20112 and the second iron core 2012, there is an air gap 204, the end of center pillar 20112 and the second iron core 2012 surface are formed；Additionally, the first coil 202 of magnetics 20 is around the center pillar 20112 of the first iron core 2011, first coil 202 is around the scope end without lid center pillar, and the second coil 203 is around the first iron core 2011 lateral column 20111 therein.
The substrate 10 of induction structure of the present invention is circuit board, and except magnetics 20, visual demand arranges other element.The first coil 202 of magnetics 20 and the second coil 203 are respectively around center pillar 20112 and a wherein lateral column 20111, do not overlap each other each other, therefore its coiling is not restrained by flat iron core group 201 space, visual circuit requirements design first coil 202 and the second respective number of turn of coil 203, or can arranging tertiary coil in another lateral column 20111, tertiary coil also will not be subject to the space of iron core to restrain；In addition, owing to flat iron core group 201 is flat, therefore magnetics 20 can lie low on substrate 10, what is called lies low in substrate 10 i.e. first coil 202 this substrate 10 surface parallel with the direction of winding L of the second coil 203, therefore, utilize flat iron core group 201 to make the setting of its substrate 10 that lies low, can significantly reduce magnetics 20 and take up space at electrical installation.
Refer to Fig. 6, it is the air gap schematic diagram of another preferred embodiment of the present invention；As shown in the figure, the air gap 204 of the present invention is formed by the end of the center pillar 20111 of the first iron core 2011 and the surface of the second iron core 2012, the surface of the second iron core 2012 has more recess, recess just can house the end of center pillar, therefore air gap 204 is formed in recess, in addition, the geometry of recess can coordinate the geometry of center pillar end, air gap 204 is arranged in the recess on the second iron core 2012 surface, forms a cladding district, can reduce the impairment in leakage field and usefulness.Please with reference to Fig. 7, it is the air gap schematic diagram of another preferred embodiment of the present invention；As it can be seen, except the present invention has recess except the surface of the second iron core 2012, the end of center pillar 20111 can form a protuberance structure, makes the protuberance structure of this end just can house in recess, has more preferably covered effect.
Refer to Fig. 8, it is another preferred embodiment magnetics plan view of the present invention；As it can be seen, first iron core 2011 outward appearance of the present invention presents an E font, the second iron core 2012 outward appearance presents a U-shaped, and the second coil 203 now also can comprise the second iron core 2012 around scope.In conjunction with previous embodiment, the second iron core 2012 surface of U-shaped has recess, and the geometry of recess can coordinate the geometry of center pillar end, forms an air gap 204.
Refer to Fig. 9, it is another preferred embodiment magnetics plan view of the present invention；As shown in the figure, the iron core group of the present invention presents prolate shape, first iron core 2011 has two side columns 20111 and a center pillar 20112, second iron core 2012 couples two side columns 20111, between center pillar 20112 and the second iron core 2012 surface, there is an air gap 204, wherein first coil 202 is around center pillar 20112, the second coil 203 around center pillar 20112 and not with first coil 202 crossover.The first coil 202 of the present embodiment and the second coil 203 are respectively around center pillar 20111, and need not overlap setting, are not also restrained by iron core space, its prolate shape iron core group can reach the reduction of powered down device apparatus structure.
Refer to Figure 10, it is the magnetics schematic diagram of another preferred embodiment of the present invention；As shown in the figure, the magnetics of the present invention is formed with iron core group and multiple PCB version 204, each PCB version 205 has one first perforation 2051, and second perforation 2052, and first perforation 2051 surroundings form a first annular cabling 2053, second perforation 2052 surrounding forms one second annular cabling 2054, when multiple PCB version 205 storehouse, first annular cabling 2053 is such as first coil 202, with the second annular cabling 2054 such as the second coil 203, and two side columns 20111 and the center pillar 20112 of the first iron core 2011 are each passed through the first perforation 2051 and the second perforation 2052.
Excessive for solving known induction structure internal magnetic element volume, and the problem occupying larger space, the induction structure that disclosed herein its comprise substrate and the magnetics being arranged on substrate, magnetics has flat-shaped iron core group, comprise the first iron core and the second ferrum core, first iron core has two side columns and a center pillar, second iron core and two side columns couple, the surface of center pillar and the second iron core forms an air gap, and there is a first coil around center pillar, and around scope without lid center pillar end, one second coil is around a wherein lateral column, wherein magnetics lies low and is arranged on substrate, what is called lies low be first coil with the second coil parallel with this substrate surface around direction, thereby reduce magnetics volume, and separately by iron core prolate characteristic, it is made to lie low on substrate, magnetics is greatly reduced taken up space, in addition, owing to first coil and the second coil are respectively around lateral column and center pillar, there is no mutual storehouse, therefore coil turn and wire diameter need not be limited by iron core.
Additionally, for avoiding magnetics usefulness to affect, the second iron core surface of the present invention has recess one air gap, recess can house the end of center pillar, and the geometry of recess can coordinate the geometry of center pillar end, the air gap made forms a cladding district, can reduce the loss in leakage field and usefulness.The induction structure of the present invention, also can being prolate shape iron core group, now first coil be around center pillar, the second coil around center pillar and not with first coil crossover, now coil around also not space by iron core limited, reach the effect that magnetics takes up space in the internal reduction of induction structure.
Additionally, for simplify coil around, first coil of the present invention and the second coil can be formed by multiple PCB versions, each PCB version has the first perforation and the second perforation, and the first perforation around forms annular cabling with the second perforation, when multiple PCB version storehouse, annular cabling is such as first coil and the second coil, and the first iron core is each passed through the first perforation and the second perforation, so also can reach the effect of magnetics volume reduction.
Above is only presently preferred embodiments of the present invention, not it is used for limiting scope of the invention process, all equalizations done according to the shape described in the claims in the present invention scope, structure, feature and spirit change and modify, and all should be included in scope of the presently claimed invention.
Claims (18)
1. an induction structure, it is characterised in that it has a substrate and a magnetics, and this magnetics comprises:
One flat iron core group, this flat iron core group has:
One first iron core, this first iron core has two side columns and a center pillar；And
One second iron core, couples the two side columns of this first iron core, has an air gap between this center pillar and this second iron core；
One first coil, around this center pillar；And
One second coil, around a lateral column therein；
Wherein, this first coil is parallel with this substrate surface around direction with the second coil.
2. induction structure as claimed in claim 1, it is characterised in that wherein this air gap is between the end and the surface of this second iron core of this center pillar.
3. induction structure as claimed in claim 1, it is characterized in that, wherein the surface of this second iron core has a recess, and the end of this center pillar is placed in this recess, making this air gap be formed in this recess, the geometry of this air gap is to should the geometry of end of recess and this center pillar.
4. induction structure as claimed in claim 3, it is characterised in that wherein the end of this center pillar has a protuberance structure, forms this air gap with this recess, the geometry of this air gap is to should the geometry of recess and this protuberance structure.
5. induction structure as claimed in claim 1, it is characterised in that wherein this first iron core is E type, and this second iron core is I type.
6. induction structure as claimed in claim 1, it is characterised in that wherein this first iron core is E type, and this second iron core is U-shaped.
7. induction structure as claimed in claim 1, it is characterised in that wherein this first coil and the second coil are that multiple pcb board stacking is formed.
8. induction structure as claimed in claim 7, it is characterized in that, wherein those pcb boards have one first perforation and one second perforation, those pcb boards are in the first annular cabling of surrounding's formation one of this first perforation, one second annular cabling is formed in this biperforate surrounding, this first annular cabling is this first coil, and this second annular cabling is this second coil, and this first iron core is arranged in this first perforation and this second perforation.
9. induction structure as claimed in claim 1, it is characterised in that wherein this substrate is circuit board.
10. an induction structure, it is characterised in that it has a substrate and a magnetics, and this magnetics comprises:
One prolate iron core group, this prolate iron core group has:
One first iron core, this first iron core has two side columns and a center pillar；And
One second iron core, couples the two side columns of this first iron core, has an air gap between this center pillar and this second iron core；
One first coil, around this center pillar；And
One second coil, around this center pillar and not with this first coil crossover；
Wherein this first coil is parallel with this substrate surface around direction with this second coil.
11. induction structure as claimed in claim 10, it is characterised in that wherein this air gap is between the end and the surface of this second iron core of this center pillar.
12. induction structure as claimed in claim 10, it is characterized in that, wherein the surface of this second iron core has a recess, and the end of this center pillar is placed in this recess, making this air gap be formed in this recess, the geometry of this air gap is to should the geometry of end of recess and this center pillar.
13. induction structure as claimed in claim 10, it is characterised in that wherein the end of this center pillar has a protuberance structure, forms this air gap with this recess, the geometry of this air gap is to should the geometry of recess and this protuberance structure.
14. induction structure as claimed in claim 10, it is characterised in that wherein this first iron core is E type, and this second iron core is I type.
15. induction structure as claimed in claim 10, it is characterised in that wherein this first iron core is E type, and this second iron core is U-shaped.
16. induction structure as claimed in claim 10, it is characterised in that wherein this first coil and this second coil are formed by the multiple pcb board of storehouse.
17. induction structure as claimed in claim 16, it is characterized in that, wherein those pcb boards have one first perforation and one second perforation, those pcb boards are in the first annular cabling of surrounding's formation one of this first perforation, one second annular cabling is formed in this biperforate surrounding, this first annular cabling is this first coil, and this second annular cabling is this second coil, and this first iron core is arranged in this first perforation and this second perforation.
18. induction structure as claimed in claim 10, it is characterised in that wherein this substrate is circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735486.3A CN105719786A (en) | 2014-12-05 | 2014-12-05 | Inductor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410735486.3A CN105719786A (en) | 2014-12-05 | 2014-12-05 | Inductor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105719786A true CN105719786A (en) | 2016-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410735486.3A Pending CN105719786A (en) | 2014-12-05 | 2014-12-05 | Inductor structure |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236176A (en) * | 1999-06-28 | 1999-11-24 | 邓忠宪 | Magnetic core with continuously adjustable air gap |
| CN2475107Y (en) * | 2001-04-18 | 2002-01-30 | 台湾光宝电子股份有限公司 | Inductive assembly with various air gap combination |
| TWI281173B (en) * | 2005-09-14 | 2007-05-11 | Wan-Shiun Wang | Circuit board type windings device and manufacturing method thereof |
| CN101027733A (en) * | 2002-11-01 | 2007-08-29 | 梅特格拉斯公司 | Bulk laminated amorphous metal inductive device |
| CN202058537U (en) * | 2011-03-29 | 2011-11-30 | 清流县鑫磁线圈制品有限公司 | Inductance device |
| TWM446964U (en) * | 2012-08-22 | 2013-02-11 | Super Flower Comp Inc | Edge-winding type winding transformer |
| CN204497003U (en) * | 2014-12-05 | 2015-07-22 | 张腾龙 | Induction structure |
-
2014
- 2014-12-05 CN CN201410735486.3A patent/CN105719786A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1236176A (en) * | 1999-06-28 | 1999-11-24 | 邓忠宪 | Magnetic core with continuously adjustable air gap |
| CN2475107Y (en) * | 2001-04-18 | 2002-01-30 | 台湾光宝电子股份有限公司 | Inductive assembly with various air gap combination |
| CN101027733A (en) * | 2002-11-01 | 2007-08-29 | 梅特格拉斯公司 | Bulk laminated amorphous metal inductive device |
| TWI281173B (en) * | 2005-09-14 | 2007-05-11 | Wan-Shiun Wang | Circuit board type windings device and manufacturing method thereof |
| CN202058537U (en) * | 2011-03-29 | 2011-11-30 | 清流县鑫磁线圈制品有限公司 | Inductance device |
| TWM446964U (en) * | 2012-08-22 | 2013-02-11 | Super Flower Comp Inc | Edge-winding type winding transformer |
| CN204497003U (en) * | 2014-12-05 | 2015-07-22 | 张腾龙 | Induction structure |
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Application publication date: 20160629 |
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