CN103050222A - Array magnetic element - Google Patents
Array magnetic element Download PDFInfo
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- CN103050222A CN103050222A CN2011103151635A CN201110315163A CN103050222A CN 103050222 A CN103050222 A CN 103050222A CN 2011103151635 A CN2011103151635 A CN 2011103151635A CN 201110315163 A CN201110315163 A CN 201110315163A CN 103050222 A CN103050222 A CN 103050222A
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Abstract
The invention provides an array magnetic element which comprises an array magnetic shielding frame provided with a plurality of slotted holes, wherein mandrels and coils are arranged in the slotted holes. The array magnetic element is characterized in that all magnetic elements share a space so that the integral volume can be reduced. Powder metallurgical forming yield is improved. When the array magnetic element is assembled on a circuit board, a plurality of elements can be installed in one time so that efficiency can be improved. The size of the array magnetic shielding frame and the direction of the mandrels can be changed so that the elements with different magnetic characteristics can be formed through combination.
Description
Technical field
The present invention is mainly plug and the outer frame body combining structure of making design in conjunction with heterogeneous insulated magnetic powder, reaches according to this advantageous properties such as easy coiling, assembling and heat radiation.
Background technology
The large current combined magnetic element that uses on the market, mainly divide into following two kinds of kenels:
Kenel one: the integrated magnetic element of plug and outer frame body, it uses insulated magnetic powder or the upper outer frame body (A) of ferrite (Ferrite), lower outer frame body (B) and adds coil (C) and is combined into finished product, it as shown in figure 15, its plug (A1), (B1) have designed and have been linked in the upper and lower framework, so without the plug that separates.
Kenel two: the magnetic element that plug separates with outer frame body, it uses the outer frame body (D) of insulated magnetic powder or ferrite (Ferrite), again with bar-shaped insulated magnetic powder or ferrite (Ferrite) iron core (E) and coil (F) combination namely become finished product, it is as shown in figure 16.
Above-mentioned as shown in figure 16 kenel two: the structure (hereinafter referred to as documents one) of " the magnetic element Magnetic component in separation of bar core and frame that plug separates with outer frame body " generally is to insert unique iron core (E) with single outer frame body (D) and in its slotted eye (D1) and unique coil (F) is combined into finished product.
In addition, known utilization shares two pieces or many pieces relevant products of magnetic inductance element of framework creation and comprises, as shown in figure 17 " two magnetic inductance element Double phase power inductor " (hereinafter referred to as documents two), it utilizes reservation groove (H1), (H2) of body (G) to add several pieces of copper cash (J1), (J2) and forms this pair magnetic inductance element in the upper enclosing cover (K1) of upper and lower end combination and lower enclosing cover (K2); As shown in figure 18 " heterogeneous magnetic inductance element Multi phase power inductor " (hereinafter referred to as documents three), it utilizes S type copper sheet (N1), (N2) and magnetic body (L) combination, and its bottom is two strip conducting end.
As above three kinds of documents magnetic elements of tradition have many distinct disadvantage, and it is by shown in the comparison sheet of summary of the invention.
Summary of the invention
Before setting forth the technology of the present invention content, please hold material that the present invention is used or technique and give first definition or be described as follows:
Insulated magnetic powder: make a general reference iron powder or the alloy powder of general tool magnetic properties, and use on the market obtainable resin to carry out surface insulation to coat, forming the surface is the Magnaglo of insulation characterisitic, thereafter can be compressing through the technology of colding pressing.
Plug: make a general reference soft magnetism (Soft Magnetic) material that general magnetic element coil coats, Common Shape is solid pole or Filled Rectangle cylinder.
Coil: alleged coil among the present invention, refer to the surface insulation copper wire winding is become the coil of single-turn or multi-turn, its function is for taking advantage of the live miscarriage to give birth to externally-applied magnetic field.
Magnetic element: general reference passes into the passive part (Passive Component) that electric current can produce sensibility reciprocal in conjunction with plug and coil, usually can increase the shielding magnetic outer frame body in coil periphery.
Viscose: alleged among the present invention plug is inserted running through hollow slot or not running through the fixing viscose that uses of hollow slot postadhesion of array magnetic shield framework, refer to the glue kind that generally sells on the market, such as epoxy resin, silica gel, instant glue.
Following just existing documents one to documents three traditional technology products and pluses and minuses of the present invention are compared as follows, and peep according to this and know content characteristic of the present invention and difference:
Can be found that by top comparison the present invention has more the advantages such as many magnetic element combinations and improving productivity, more in the past product form progress except reaching general magnetic element requirement.
The invention provides a kind of array magnetic element, the chief component important document comprises: an array formula magnetic shield framework (1), many plugs (2) and a plurality of coil (3), this array magnetic shield framework (1) is rectangle, have in the middle of this array magnetic shield framework (1) and a plurality ofly run through hollow slot (11) or do not run through hollow slot (12), each runs through hollow slot (11) or does not run through hollow slot (12) and keeps at least an opening, each runs through hollow slot (11) or does not run through inserts after confession one plug (2) is inserted in coil (3) in the hollow slot (12), and stick together the fixing array magnetic element that forms with viscose, so that magnetic line of force path to be provided.
Described array magnetic element, wherein, array magnetic shield framework (1) and plug (2), insulated magnetic powder (Insulated magnetic powder) by pure iron (Iron), ferro-silicium (Fe-Si) or ferrite material (Ferrite), (powder metallurgy) is compressing by the technology of colding pressing through powder metallurgy technology, and array magnetic shield framework (1) has soft magnetism (soft magnetic) characteristic with plug (2).
Described array magnetic element, wherein, the slotted eye of the same race or the combination slotted eye number minimum that is harmonious that run through hollow slot (11) or do not run through hollow slot (12) of array magnetic shield framework (1) are two, wherein array magnetic shield framework (1) runs through hollow slot (11) at a distance of＞0.3mm, length and width＞1mm that each runs through hollow slot (11) or does not run through hollow slot (12) opening, the size that runs through hollow slot (11) or do not run through hollow slot (12) matches with plug (2) and coil (3) size of its combination.
Described array magnetic element, wherein, coil (3) is the coil that uses copper wire winding, coil (3) can be placed on circle or rectangle plug (2) external diameter, and reserve two contacts, the contact mode is the connection copper cash (31) that extends or welds a connection copper sheet (32) that this contact will pass running through hollow slot (11) or not running through the extension of hollow slot (12) outward opening of array magnetic shield framework (1) after the assembling.
Described array magnetic element, wherein, connect copper sheet (32) and after assembling its end is fixed along array magnetic shield framework (1) reflexed, coil (3) produces an externally-applied magnetic field (External Magnetic Field) by the contact inflow current.
Described array magnetic element, wherein, the running through hollow slot (11) or do not run through hollow slot (12) of array magnetic shield framework (1), can adjust and run through hollow slot (11) or do not run through hollow slot (12) arrangement pitches and opening size, comply with the circuit board position demand, produce each component contacts position, the place does not need element blank face (13) for middle space, can run through hollow slot (11) or not run through hollow slot (12) by setting and fill up.
Described array magnetic element, wherein, each of array magnetic shield framework (1) runs through hollow slot (11) or do not run through hollow slot (12), can select the to arrange in pairs or groups plug (2) and coil (3) of different size, form the different qualities magnetic element, run through more greatly hollow slot (11) or do not run through hollow slot (12) the opening thicker plug of collocation (2A) reaching than thick line circle (3A); The smaller opening thinner plug of collocation (2B) reaches than fine rule circle (3B).
Described array magnetic element, wherein, the long side direction that plug (2) long axis direction and array magnetic shield framework (1) can be run through hollow slot (11) or not run through hollow slot (12) is parallel, vertical or any angle combination, rely on as above that angle parallel, vertical or angle changes, can access the magnetic element of different sensibility reciprocals (inductance).
Described array magnetic element, wherein, array magnetic shield framework (1), the different blocks height can be present on the same body, the height block of this array magnetic shield framework (1) can carry out height and adjusted size according to the characteristic demand, make this array magnetic shield framework (1) produce part breach (14), (15), array magnetic shield framework (1) height and length and width variation are applicable to the different spaces requirement, array magnetic shield framework (1) can be with the slotted eye size, adjust framework shape or edge thickness, to meet space requirement.
Described array magnetic element, wherein, plug (2) and coil (3), it is lower that it is combined in the license of array magnetic shield framework (1) space mutually, the plug of each magnetic element (2) material and coil (3) copper cash wire diameter, wire circle, according to each magnetic element characteristic requirements, can carry out identical or not identical combination.
Described array magnetic element, wherein, array magnetic shield framework (1), except rectangle appearance, rely on permutation and combination to produce and comprise the geometry that is T, L, U or trellis appearance, running through hollow slot (11) or not running through hollow slot (12) arrangement mode change on the array magnetic shield framework (1) can be satisfied the different connecting point position requirements of circuit board, and with the time because a plurality of magnetic elements share spacing, can effectively dwindle overall volume.
Description of drawings
Fig. 1 is array magnetic element stereogram of the present invention;
Fig. 2 is array magnetic element exploded perspective view of the present invention;
Fig. 3 is another embodiment stereogram of array magnetic element of the present invention;
Fig. 4 is another embodiment exploded perspective view of array magnetic element of the present invention;
Fig. 5 is running through hollow slot or not running through the hollow slot spacing and opening size alternate embodiment stereogram of array magnetic element of the present invention;
Fig. 6 to Fig. 8 is the plug direction alternate embodiment top view of array magnetic element of the present invention;
Fig. 9 is array magnetic shield framework height and the change in size embodiment stereogram of array magnetic element of the present invention;
Figure 10 to Figure 14 is the array magnetic shield framework array shape alternate embodiment stereogram of array magnetic element of the present invention;
Figure 15 is traditional plug and the integrated magnetic element subdivision of outer frame body solution cutaway view;
Figure 16 is the magnetic element exploded perspective view that traditional plug separates with outer frame body;
Figure 17 is that tradition shares two pieces of magnetic inductance element exploded perspective views of framework creation;
Figure 18 is that tradition shares many pieces of magnetic inductance element exploded perspective views of framework creation.
Description of reference numerals: array magnetic shield framework 1; Run through hollow slot 11; Do not run through hollow slot 12; Element blank face 13; Breach 14; Breach 15; Plug 2; Thicker plug 2A; Thinner plug 2B; Coil 3; Connect copper cash 31; Connect copper sheet 32; Than thick line circle 3A; Than fine rule circle 3B; Upper outer frame body A; Plug A1; Lower outer frame body B; Plug B1; Coil C; Outer frame body D; Iron core E; Coil F; Body G; Groove H1; Groove H2; Copper cash J1; Copper cash J2; Upper enclosing cover K1; Lower enclosing cover K2; Body L; S type copper sheet N1; S type copper sheet N2.
Embodiment
Please refer to Fig. 1 to Fig. 4 institute, array magnetic element chief component important document of the present invention comprises: an array formula magnetic shield framework 1, many plugs 2, a plurality of coil 3 sequentially illustrate individual component.
This array magnetic shield framework 1 is the insulated magnetic powder (Insulated magnetic powder) of pure iron (Iron), ferro-silicium (Fe-Si) or ferrite material (Ferrite) with plug 2 materials, can be compressing through the technology of colding pressing after powder metallurgy technology (powder metallurgy), it has soft magnetism (soft magnetic) characteristic.
Array magnetic shield framework 1 basic configuration is rectangle, the centre has a plurality ofly to be run through hollow slot 11 or not to run through hollow slot 12, each runs through hollow slot 11 or does not run through hollow slot 12 and keeps at least an opening, each runs through hollow slot 11 or does not run through inserts after hollow slot 12 interior confession one plugs 2 are inserted in coil 3, and stick together the fixing array magnetic element that forms with viscose, its function is for providing magnetic line of force path.
This runs through hollow slot 11 or does not run through hollow slot 12 slotted eyes of the same race or the combination slotted eye number minimum that is harmonious is two, a plurality ofly run through hollow slot 11 or do not run through hollow slot 12 at a distance of＞0.3mm, each runs through hollow slot 11 or does not run through length and the width＞1mm of hollow slot 12 openings, runs through hollow slot 11 or do not run through hollow slot 12 actual sizes to adjust according to plug 2 and coil 3 sizes with its combination.
Plug (Bar core) 2 basic configurations are solid pole or Filled Rectangle cylinder, its length is no more than and runs through hollow slot 11 or do not run through hollow slot 12 Breadth Maximums or length, plug 2 major functions are for providing induced field (Inductive magnetic Field), the present about 0.5mm～70mm of the actual use of industry length range, the about 0.5mm～50mm of diameter range.
Coil (Coils) 3 is for using the coil of copper wire winding, it can be placed on plug 2 external diameters, and reserve two contacts, the contact mode may or be welded one for the connection copper cash 31 that extends and be connected copper sheet 32, this contact will pass running through hollow slot 11 or not running through the extension of hollow slot 12 outward openings of array magnetic shield framework 1 after the assembling, if connecting copper sheet 32 fixes its end after assembling along array magnetic shield framework 1 reflexed, coil 3 major functions are by the contact inflow current, produce an externally-applied magnetic field (External Magnetic Field).
Each assembly of array magnetic element of the present invention design variation of deriving:
A. run through hollow slot 11 or do not run through hollow slot 12 spacings and the opening size variation:
1. please refer to shown in Figure 5, array magnetic shield framework 1 can be on demand, adjustment runs through hollow slot 11 or does not run through hollow slot 12 arrangement pitches and opening size, thus can be in response to the circuit board position demand, produce each component contacts position, do not need element blank face 13 for place, middle space in addition, also can use this method to fill up.
2. each runs through hollow slot 11 or does not run through hollow slot 12 can select the to arrange in pairs or groups plug 2 and coil 3 of different size, form the different qualities magnetic element, so reach than thick line circle 3A as running through more greatly hollow slot 11 or not running through the thicker plug 2A of hollow slot 12 openings collocation; The thinner plug 2B of smaller opening collocation reaches than fine rule circle 3B.
1. please refer to shown in Figure 6ly, the long side direction that plug 2 long axis directions run through hollow slot 11 with array magnetic shield framework 1 or do not run through hollow slot 12 is parallel combination.
2. please refer to shown in Figure 7ly, plug 2 long axis directions and array magnetic shield framework 1 run through hollow slot 11 or do not run through hollow slot 12 long side directions and be vertical cartel.
3. please refer to shown in Figure 8ly, it belongs in conjunction with changing, and the long side direction that plug 2 major axis run through hollow slot 11 with array magnetic shield framework 1 or do not run through hollow slot 12 is parallel, vertical or any angle and makes up.
Rely on as above that angle parallel, vertical or angle changes, can obtain the magnetic element of different sensibility reciprocals (inductance).
C. array magnetic shield framework 1 height and change in size:
1. please refer to shown in Figure 9, array magnetic shield framework 1 different blocks height can be present on the same body, its height block can carry out height and adjusted size according to the characteristic demand, make it produce part breach 14,15, its height and length and width change, applicable to the different spaces requirement, make and avoid other component feature space on the motherboard effectively in good time.
2. please refer to shown in Figure 10ly, array magnetic shield framework 1 can with slotted eye size, be adjusted framework shape or edge thickness, to meet space requirement.
Under the license of array magnetic shield framework 1 space, plug 2 materials of each magnetic element and coil 3 copper cash wire diameters, wire circle according to each magnetic element characteristic requirements, can carry out identical or not identical combination.
E. array change of shape:
Please refer to shown in Figure 11 to Fig. 14, array magnetic shield framework 1 is except aforementioned rectangle appearance, can produce different geometries by permutation and combination, it comprises to be and is T, L, U or trellis moulding, running through hollow slot 11 or not running through the change of hollow slot 12 arrangement modes on it, can satisfy the different connecting point position requirements of circuit board, and with the time because a plurality of magnetic elements share spacing, can effectively dwindle overall volume.
Claims (11)
1. array magnetic element, it is characterized in that, the chief component important document comprises: an array formula magnetic shield framework (1), many plugs (2) and a plurality of coil (3), this array magnetic shield framework (1) is rectangle, have in the middle of this array magnetic shield framework (1) and a plurality ofly run through hollow slot (11) or do not run through hollow slot (12), each runs through hollow slot (11) or does not run through hollow slot (12) and keeps at least an opening, each runs through hollow slot (11) or does not run through inserts after confession one plug (2) is inserted in coil (3) in the hollow slot (12), and stick together the fixing array magnetic element that forms with viscose, so that magnetic line of force path to be provided.
2. array magnetic element as claimed in claim 1, it is characterized in that, array magnetic shield framework (1) and plug (2), insulated magnetic powder by pure iron, ferro-silicium or ferrite material, compressing by the technology of colding pressing through powder metallurgy technology, array magnetic shield framework (1) has soft magnetic characteristic with plug (2).
3. array magnetic element as claimed in claim 1, it is characterized in that, the slotted eye of the same race or the combination slotted eye number minimum that is harmonious that run through hollow slot (11) or do not run through hollow slot (12) of array magnetic shield framework (1) are two, wherein array magnetic shield framework (1) runs through hollow slot (11) at a distance of＞0.3mm, length and width＞1mm that each runs through hollow slot (11) or does not run through hollow slot (12) opening, the size that runs through hollow slot (11) or do not run through hollow slot (12) matches with plug (2) and coil (3) size of its combination.
4. array magnetic element as claimed in claim 1, it is characterized in that, coil (3) is the coil that uses copper wire winding, coil (3) can be placed on circle or rectangle plug (2) external diameter, and reserve two contacts, the contact mode is the connection copper cash (31) that extends or welds a connection copper sheet (32) that this contact will pass running through hollow slot (11) or not running through the extension of hollow slot (12) outward opening of array magnetic shield framework (1) after the assembling.
5. array magnetic element as claimed in claim 4 is characterized in that, connects copper sheet (32) and after assembling its end is fixed along array magnetic shield framework (1) reflexed, and coil (3) produces an externally-applied magnetic field by the contact inflow current.
6. array magnetic element as claimed in claim 1, it is characterized in that, the running through hollow slot (11) or do not run through hollow slot (12) of array magnetic shield framework (1), can adjust and run through hollow slot (11) or do not run through hollow slot (12) arrangement pitches and opening size, comply with the circuit board position demand, produce each component contacts position, the place does not need element blank face (13) for middle space, can run through hollow slot (11) or not run through hollow slot (12) by setting and fill up.
7. array magnetic element as claimed in claim 1, it is characterized in that, each of array magnetic shield framework (1) runs through hollow slot (11) or do not run through hollow slot (12), can select the to arrange in pairs or groups plug (2) and coil (3) of different size, form the different qualities magnetic element, run through more greatly hollow slot (11) or do not run through hollow slot (12) the opening thicker plug of collocation (2A) reaching than thick line circle (3A); The smaller opening thinner plug of collocation (2B) reaches than fine rule circle (3B).
8. array magnetic element as claimed in claim 1, it is characterized in that, the long side direction that plug (2) long axis direction and array magnetic shield framework (1) can be run through hollow slot (11) or not run through hollow slot (12) is parallel, vertical or any angle combination, rely on as above that angle parallel, vertical or angle changes, can access the magnetic element of different sensibility reciprocals.
9. array magnetic element as claimed in claim 1, it is characterized in that, array magnetic shield framework (1), the different blocks height can be present on the same body, the height block of this array magnetic shield framework (1) can carry out height and adjusted size according to the characteristic demand, make this array magnetic shield framework (1) produce part breach (14), (15), array magnetic shield framework (1) height and length and width variation are applicable to the different spaces requirement, array magnetic shield framework (1) can be with the slotted eye size, adjust framework shape or edge thickness, to meet space requirement.
10. array magnetic element as claimed in claim 1, it is characterized in that, plug (2) and coil (3), it is lower that it is combined in the license of array magnetic shield framework (1) space mutually, the plug of each magnetic element (2) material and coil (3) copper cash wire diameter, wire circle, according to each magnetic element characteristic requirements, can carry out identical or not identical combination.
11. array magnetic element as claimed in claim 1, it is characterized in that, array magnetic shield framework (1), except rectangle appearance, rely on permutation and combination to produce and comprise the geometry that is T, L, U or trellis appearance, running through hollow slot (11) or not running through the change of hollow slot (12) arrangement mode on the array magnetic shield framework (1) can be satisfied the different connecting point position requirements of circuit board, and because a plurality of magnetic elements share spacing, can effectively dwindle overall volume with the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315163.5A CN103050222B (en) | 2011-10-17 | 2011-10-17 | Array magnetic element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110315163.5A CN103050222B (en) | 2011-10-17 | 2011-10-17 | Array magnetic element |
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| Publication Number | Publication Date |
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| CN103050222A true CN103050222A (en) | 2013-04-17 |
| CN103050222B CN103050222B (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110315163.5A Active CN103050222B (en) | 2011-10-17 | 2011-10-17 | Array magnetic element |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110942890A (en) * | 2019-12-06 | 2020-03-31 | 三积瑞科技（苏州）有限公司 | Integrated inductor |
| CN111724968A (en) * | 2019-03-22 | 2020-09-29 | 乾坤科技股份有限公司 | Inductor array |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020057174A1 (en) * | 1999-07-07 | 2002-05-16 | Tdk Corporation | Method of manufacturing a multi-layer ferrite chip inductor array |
| US20070096354A1 (en) * | 2003-08-07 | 2007-05-03 | Gabel Jonathan B | Process of making flowable hemostatic compositions and devices containing such compositions |
| TWM312757U (en) * | 2006-11-30 | 2007-05-21 | Mag Layers Scient Technics Co | inductor structure improvement |
| CN101409142A (en) * | 2008-07-23 | 2009-04-15 | 董学娟 | Multi-pole combined magnet core with magnetic shield |
| CN101685699A (en) * | 2008-09-09 | 2010-03-31 | 通用汽车环球科技运作公司 | DC-DC converter for fuel cell application using hybrid inductor core material |
-
2011
- 2011-10-17 CN CN201110315163.5A patent/CN103050222B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020057174A1 (en) * | 1999-07-07 | 2002-05-16 | Tdk Corporation | Method of manufacturing a multi-layer ferrite chip inductor array |
| US20070096354A1 (en) * | 2003-08-07 | 2007-05-03 | Gabel Jonathan B | Process of making flowable hemostatic compositions and devices containing such compositions |
| TWM312757U (en) * | 2006-11-30 | 2007-05-21 | Mag Layers Scient Technics Co | inductor structure improvement |
| CN101409142A (en) * | 2008-07-23 | 2009-04-15 | 董学娟 | Multi-pole combined magnet core with magnetic shield |
| CN101685699A (en) * | 2008-09-09 | 2010-03-31 | 通用汽车环球科技运作公司 | DC-DC converter for fuel cell application using hybrid inductor core material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111724968A (en) * | 2019-03-22 | 2020-09-29 | 乾坤科技股份有限公司 | Inductor array |
| CN110942890A (en) * | 2019-12-06 | 2020-03-31 | 三积瑞科技（苏州）有限公司 | Integrated inductor |
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| Publication number | Publication date |
|---|---|
| CN103050222B (en) | 2015-06-24 |
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