CN102446614A

CN102446614A - Inductance component structure

Info

Publication number: CN102446614A
Application number: CN2010105093362A
Authority: CN
Inventors: 莫家平
Original assignee: HONGYE TECHNOLOGY Inc
Current assignee: HONGYE TECHNOLOGY Inc
Priority date: 2010-10-14
Filing date: 2010-10-14
Publication date: 2012-05-09
Anticipated expiration: 2030-10-14
Also published as: CN102446614B

Abstract

The invention relates to an inductance component structure. Two outer surfaces of an inner-layer substrate of an inductance component are respectively provided with a cooper foil layer, an accommodating groove is molded inside the substrate and accommodates a metal inner core, the two copper foil layers and the substrate are respectively molded with a plurality of through holes and a plurality of penetration holes in an opposite manner, a metal conductor is processed and molded inside each through hole and each penetration hole, the outer surfaces of the two copper foil layers are respectively molded with a plurality of stelliform metal conductor wires to form a preset circuit layout, and the metal conductors inside all the through holes and penetration holes and the plurality of stelliform metal conductor wires are mutually connected and conducted to give rise to a continuously winding type metal magnetic induction loop effect, that is to say, a complete inductance component combination is molded by means of the plurality of metal conductor wires and the preset metal inner core, so that the plurality of metal conductor wires are matched with the metal inner core to be electrically conducted in the continuously winding type metal magnetic induction loop effect manner, and each induction zone is respectively provided with an input side and an output side in an extension manner so as to transmit magnetic induction signals and achieve the purposes of reducing the volume of the inductance component and promoting an inductive effect and a rectifying function.

Description

The structure of inductance element

Technical field

The present invention relates to a kind of structure of inductance element, but finger does not need the inductance element of winding around and reduced volume especially, utilizes clamping base material and metal inner core between two copper foil layers, reaches the structure of the inductance element of inductive effect through the induction zone of circuit layout.

Background technology

Along with the science and technology epoch constantly advance by leaps and bounds; Various practical advanced electronics, electric products come out successively, also bring people on the living conditions, the many conveniences in the work, have more save time, advantages such as saving of labor, high workload efficient; And constantly bringing forth new ideas, improveing along with electronics, electric product; Various electronics, the inner topmost control system of electric product, circuit machine plate, the improvement, the progress that also continue are in order to save the volume of control system, circuit machine plate; Make that electronics, electric product have gently, thin, short, little appearance and modeling; And various electronic component avoids taking too big space on control system, the circuit machine plate also all towards the design of the volume of microminiaturization, so that control system, circuit machine plate have more sufficient space to carry out circuit layout; And can appropriateness dwindle the volume of circuit machine plate, meet that electronics, electric product appear gently, the design concept of thin, short, little external form.

And inductance element (Inductor) or claim that coil (Choke) is as shown in Figure 8 is the element that often uses in the electronic component, utilizes that the change of electric current comes store electrical energy in the circuit; Carry out the charge and discharge of appropriateness, inductance element belongs to passive device, utilizes magnetic or nonmagnetic metal material to be core A; Give winding around B and form, the electric current through coil B changes, to produce magnetic flux change; Form the magnetic field phenomenon, promptly produce magnetic field, and utilize the magnetic field induction of change to go out electric current through the electric current that exchanges; So linear scale is inductance; Present employed inductance element all is to constitute at the outside winding around B of core A, when practical application, then has many shortcomings, puzzlement, wherein:

(1) behind the outside winding around B of the core A of inductance element, causes the volume size of core A to increase, when being applied to circuit board, can take bigger space, influence the circuit layout of circuit board.

(2) the outside winding around B of the core A of inductance element, must be noted that between coil B adjacent between distance, be easy to generate the too big or too small improper winding situation of spacing; And it is outside that coil B can be exposed to core A; And uprightly be arranged at circuit board surface, when assembling or when mobile, produce collision or conflict easily with external electric parts; Cause coil B to produce scraping, phenomenon of rupture, influence the charge and discharge function of inductance element.

(3) when core A volume is too small and when giving winding around B, the difficulty in process of its automation need be come winding around B with manual work.

Summary of the invention

Main purpose of the present invention is to improve the structure of inductance element, and internal layer base material two outer surfaces of this inductance element are respectively equipped with copper foil layer, and moulding storage tank and take in the metal inner core in the base material; And in two copper foil layers, a plurality of through holes of the base material difference relative formula of moulding, a plurality of open-work; Each through hole, open-work machine-shaping metallic conductor, and two copper foil layer outer surface moulding are the preinstalled circuit layout of actinoid a plurality of plain conductors, utilize each through hole, open-work interior metal conductor and are actinoid a plurality of plain conductor; Interlink and conducting; To constitute the metal magnetic induction loop effect of continuous reeling formula, promptly through plain conductor be preset in the metal inner core in it, the inductance element combination that moulding is complete; So that being the magnetic strength of continuous reeling formula, plain conductor complexed metal inner core conducts effect; And each induction zone outwards extends input side and outlet side respectively, so that the transmission of magnetic strength signal, to reach the purpose of minimize inductance component size, lifting inductive effect and rectification function.

Secondary objective of the present invention is base material, the two relative formula copper foil layers of this inductance element; And two relative formula copper foil layers; Comprise upper strata Copper Foil, lower floor's Copper Foil, inner and clamping base material, the metal inner core in the outer surface cooperation base material of upper strata Copper Foil, lower floor's Copper Foil; Machine-shaping has a plurality of through holes, a plurality of open-work; And the outer surface that a plurality of through holes are radiation wire Copper Foil, lower floor's Copper Foil in the upper strata is shaped to induction zone, is actinoid a plurality of plain conductor, and the upper strata Copper Foil has outwards extended input side, outlet side by induction zone, and lower floor's Copper Foil has outwards extended outlet side by induction zone.

A purpose more of the present invention is this two relative formula copper foil layer, in outer surface machine-shaping be the preinstalled circuit layout induction zone, be actinoid a plurality of plain conductor, and in the two copper foil layer outer surfaces resin bed of coating insulation respectively; Avoid the phenomenon of oxidation, solder shorts with the preset circuit of protection moulding; Usually earlier two copper foil layer outer surfaces are brushed processed such as mill or little erosion, made the copper face of two copper foil layers carry out suitable alligatoring clean, and be coated with or processing method such as electrostatic spraying through screen painting, curtain; The green lacquer of liquid photosensitive is coated on two copper foil layer outer surfaces; Treat its cooling after promptly handling, send into and carry out exposure-processed in the ultraviolet exposure machine, make green lacquer receive ultraviolet irradiation at the egative film transmission region through oven dry; Just produce polymerization reaction; Remove, impose high-temperature baking again the resin bed in the green lacquer is hardened fully, then take shape in the outer surface of two copper foil layers and utilize aqueous sodium carbonate to be developed in the zone that does not receive illumination on the coating.

Another object of the present invention is to the storage tank of various processing mode moulding recess such as this base material inner utilization Milling Process, attrition process or boring processing; And cooperate the shape of storage tank to take in identical shaped metal inner core; And storage tank, metal inner core can be rounded, annular, rectangle, polygon, hollow shaped as frame shape or geometric form etc., the design of different shape, and cooperate a plurality of open-works of the storage tank medial and lateral of base material; Relative two relative formula copper foil layers; Between a plurality of through holes of outer surface, form and be actinoid a plurality of plain conductor, be shaped to the radiation wire and arrange; And a plurality of through holes, a plurality of open-work are rounded, annular respectively, rectangle, polygon or geometric form etc., the radiation wire arrangement of different shape.

Description of drawings

Fig. 1 is a stereo appearance figure of the present invention.

Fig. 2 is a three-dimensional exploded view of the present invention.

Fig. 3 is the three-dimensional exploded view of other direction of the present invention.

Fig. 4 is the three-dimensional exploded view of the present invention when assembling.

Fig. 5 is a side cutaway view of the present invention.

Fig. 6 is the stereo appearance figure of preferred embodiment of the present invention.

Fig. 7 is the stereo appearance figure of another embodiment of the present invention.

Fig. 8 is the stereo appearance figure of existing inductance element.

Description of reference numerals: 1-copper foil layer; 11-upper strata Copper Foil; 12-lower floor Copper Foil; The 110-through hole; The 120-through hole; The 111-induction zone; The 121-induction zone; The 1111-plain conductor; The 1211-plain conductor; The 112-input side; The 122-outlet side; The 113-outlet side; The 2-base material; The 20-storage tank; The 21-open-work; The 201-limit body; 22-metal inner core; The 3-metallic conductor; The A-core; The B-coil.

Embodiment

For reaching above-mentioned purpose and effect, technological means that the present invention adopted and execution mode thereof are drawn now and are explained in detail that with regard to preferred embodiment of the present invention its characteristic and function are following.

See also Fig. 1,2,3,4, shown in 5; Three-dimensional exploded view, side cutaway view during for the three-dimensional exploded view of stereo appearance figure of the present invention, three-dimensional exploded view, other direction, assembling; Find out that by knowing shown in the figure inductance element of the present invention comprises copper foil layer 1, base material 2, wherein:

This copper foil layer 1 comprises upper strata Copper Foil 11, lower floor's Copper Foil 12 of two relative formulas; And the internal layer of upper strata Copper Foil 11, lower floor's Copper Foil 12; Machine-shaping preinstalled circuit layout respectively, and respectively at the induction zone 111,121 of outer surface machine-shaping preinstalled circuit layout, each induction zone 111,121 machine-shaping respectively has a plurality of through holes 110,120; Each through hole 110, between 120; Form a plurality of

plain conductors

1111,1211 that are the arrangement of radiation wire respectively, and the induction zone 111 of upper strata Copper Foil 11 has outwards extended input side 112, outlet side 113, the induction zone 121 of lower floor's Copper Foil 12 has outwards extended outlet side 122.

This base material 2 is in the storage tank 20 of inner moulding recess, and in storage tank 20 medial and lateral a plurality of open-works 21 of moulding respectively, and in storage tank 20, take in identical shaped metal inner core 22.

Above-mentioned each member is when assembling, and in the upper strata Copper Foil 11 of two relative formula copper foil layers 1, the relative inner of lower floor's Copper Foil 12, clamping sets firmly base material 2; And so that each induction zone 111,121 and actinoid a plurality of

plain conductor

1111,1211 of upper strata Copper Foil 11, lower floor's Copper Foil 12; Take in metal inner core 22 with respect to 20 of the storage tanks of base material 2 respectively, and each induction zone 111,121 of upper strata Copper Foil 11, lower floor's Copper Foil 12, a plurality of through holes 110,120 of moulding respectively; A plurality of open-works 21 with respect to base material 2; In each through hole 110,120, each open-work 21 inside, machine-shaping has metallic conductor 3, so that each induction zone 111,121 of upper strata Copper Foil 11, lower floor's Copper Foil 12; Utilization is actinoid a plurality of

plain conductor

1111,1211; Between the medial and lateral of metal inner core 22, form the metal magnetic induction loop effect of continuous reeling formula, promptly through a plurality of

plain conductors

1111,1211 and a plurality of

metallic conductor

3,22 places are electric conducting state at the metal inner core; And then the metal magnetic induction loop effect of generation continuous reeling formula, promptly constitute inductance element structure of the present invention for 22 groups through two relative formula copper foil layers 1, base material 2 and metal inner core.

And the upper strata Copper Foil 11 of above-mentioned two relative formula copper foil layers 1, lower floor's Copper Foil 12; Be a plurality of through holes 110,120 that the radiation wire is arranged respectively at the outer surface moulding; Respectively at upper strata Copper Foil 11, the actinoid induction zone 111,121 of lower floor's Copper Foil 12 outer surface moulding and be actinoid a plurality of

plain conductor

1111,1211; A plurality of through holes 110,120 of each induction zone 111,121 are arranged so that a plurality of open-work 21 is the radiation wire in storage tank 20 medial and lateral with respect to a plurality of open-works 21 of base material 2; And a plurality of

plain conductors

1111,1211 and a plurality of open-work 21 of 110,120 of a plurality of through holes, can be rounded respectively, annular, rectangle, polygon or geometric form etc., various actinoid arrangements.

And each induction zone 111, be between 121 1111,1211 moulding respectively of actinoid a plurality of plain conductor, smooth in the upper strata outer surface of Copper Foil 11, lower floor's Copper Foil 12, a plurality of through hole 110, a plurality of plain conductors between 120 1111,1211, the adjacent rows column pitch is quite accurate; The too big or too small phenomenon of adjacent spacing can not take place, also can not protrude on outer surface, after input side 112 entering of electric current by upper strata Copper Foil 11; Via a plurality of plain conductors 1111 of a plurality of through holes 110, cooperate 3 transmission of inner metallic conductor, behind a plurality of open-works 21 through base material 2 during through induction zone 111; Transfer to a plurality of through holes 120 of lower floor's Copper Foil 12; And be transmitted in a plurality of plain conductors 1211 of induction zone 121, and and utilize a plurality of radiation wire

plain conductors

1111,1211 of each induction zone 111,121, be positioned at that the metal inner core 22 of base material 2 is inside and outside to be the metal magnetic induction loops that continuous shape is reeled; And then form plane coiled metal magnetic strength coil inductance effect; And make inductance magnetic field be looped around a plurality of plain conductors 1111 of each induction zone 111,121, between 1211, and be difficult for outwards flowing, again electric current is outwards exported by the outlet side 113 of upper strata Copper Foil 11, the outlet side 122 of lower floor's Copper Foil 12 respectively; Reach the purpose that produces good inductive effect, rectification function; So that inductance element stable carry out charge and discharge, rectification etc., and inductance element electric current through the time, the inductance magnetic wave of generation also is difficult for disturbing other electronic component of periphery; Simultaneously; Inductance element after the moulding is because needn't carry out the manufacturing procedure of winding around, so can reduce the cost of manufacturing in addition.

Moreover a plurality of open-works 21 of the upper strata Copper Foil 11 of two relative formula copper foil layers 1, lower floor's Copper Foil 12 set a plurality of through holes 110,120 and base material 2; This a plurality of through hole 110,120, a plurality of open-work 21 inside; Plating machine-shaping copper product capable of using, aluminum, nickel material or alloy material etc.; The metallic conductor 3 of various metal material; So that a plurality of

plain conductors

1111,1211 of each induction zone 111,121 of upper strata Copper Foil 11, lower floor's Copper Foil 12 and each metallic conductor 3; The metal magnetic induction loop electric conducting state that is the continuous reeling formula promptly utilizes two relative formula copper foil layers 1, base material 2 with metal inner core 22 and the moulding volume is little, inductive effect is good, have the inductance element of rectification function.

As for base material 2; Process by insulating material; And can convex with limit body 201 in storage tank 20 inside; And take in ringwise metal inner core 22 in the storage tank 20, and and metal inner core 22 can be magnet inner core, irony inner core, copper inner core or noncrystalline metal inner core etc., various have materials such as the material of magnetic, nonmagnetic metal material; And the storage tank 20 of base material 2, metal inner core 22 can be rounded, annular, rectangle, polygon, hollow shaped as frame shape or geometric form etc., and the corresponding different shape design of moulding is so that metal inner core 22 is incorporated in the storage tank 20.

See also Fig. 2,4,5,6, shown in 7; Three-dimensional exploded view during for three-dimensional exploded view of the present invention, assembling, side cutaway view, the stereo appearance figure of preferred embodiment, the stereo appearance figure of another embodiment; Find out by knowing shown in the figure; The base material 2 of inductance element of the present invention is provided with metal inner core 22, and is clamped between the two outer surface copper foil layers 1, and so that the induction zone 111,121 of two copper foil layers, 1 surface difference moulding; Through a plurality of through holes 110,120 in the medial and lateral of each induction zone 111,121 and be a plurality of

plain conductors

1111,1211 that the radiation wire is electrically connected; The metallic conductor 3 that cooperates a plurality of through holes 110,120 and a plurality of open-work 21 inside, and so that a plurality of

plain conductor

1111,1211 and metallic conductor 3, form the metal magnetic induction loop of continous way rolled in the outside of metal inner core 22; And then between a plurality of

plain conductors

1111,1211 and metal inner core 22 of each induction zone 111,121, form the inductive effect of plane formula takeup type metal magnetic induction loop.

And the manufacturing approach of inductance element of the present invention the steps include:

(100) copper foil layer 1 of two outer surfaces of base material 2; Through processing mode (processing of the pickling of chemical agent, milling machine mills or processing mode such as attrition process is removed) a plurality of optics points are removed and stayed to the copper foil layer 1 of two side surfaces, with the base material 2 that exposes inner interlayer.

(101) again in this surface to the storage tank 20 of base material 2 machined moulding recess, and utilize storage tank 20 inside to take in metal inner core 22.

(102) and base material 2 two side surfaces again through the bonding copper foil layer 1 of film, then keep having two relative formula copper foil layers 1, and metal inner core 22 be coated between two copper foil layers 1 in base material 2 two outer surfaces.

(103) and between upper strata Copper Foil 11, lower floor's Copper Foil 12 and the base material 2 of two copper foil layers 1, each optics point of contraposition is through processing a plurality of through holes 110,120 and a plurality of open-work 21 of (drilling or Milling Process) relative formula of moulding respectively.

(104) in the upper strata Copper Foil 11 of two copper foil layers 1, the outer surface of lower floor's Copper Foil 12; The machine-shaping preinstalled circuit layout through image transfer technology; And the preinstalled circuit layout of upper strata Copper Foil 11, lower floor's Copper Foil 12 is distinguished a plurality of

plain conductors

1111,1211 of moulding with respect to each through hole 110,120.

(105) in the upper strata Copper Foil 11 of two copper foil layers 1, each through hole 110,120 of lower floor's Copper Foil 12 moulding and each open-work 21 of base material 2; After respectively inner surface being carried out activation processing, utilize processing mode (processing modes such as plating or welding) to form metallic conductor 3 again.

(106),, via etch process two copper foil layers, 1 surperficial unnecessary Copper Foil is stung erosion again and remove two copper foil layers 1 are formed conducting through each through hole 110,120, each open-work 21 inner metallic conductor 3 also through electric plating of whole board technology.

(107) promptly Copper Foil 11, lower floor's Copper Foil 12 are shaped to the preinstalled circuit layout of required induction zone 111,121 respectively in the upper strata; And in a plurality of through holes 110 of each induction zone 111,121, between 120; Form and be actinoid a plurality of

plain conductor

1111,1211; And each induction zone 111,121 corresponds to metal inner core 22, a plurality of open-work 21 of base material 2; And a plurality of

plain conductors

1111,1211 and a plurality of metallic conductor 3 through each induction zone 111,121, so that each induction zone 111,121 of upper strata copper foil plate 11, lower floor's copper foil plate 12, be the electric conducting state of continuous reeling formula metal magnetic induction loop effect.

(108) induction zone 111 of Copper Foil 11 outwards extends input side 112, outlet side 113 respectively in the upper strata again; And the induction zone 121 of lower floor's Copper Foil 12 has then outwards extended outlet side 122.

(109) with two copper foil layers 1 of moulding, the thin inductance element that base material 2 is processed tabular continous way rolled.

And the upper strata Copper Foil 11 of above-mentioned two relative formula copper foil layers 1, lower floor's Copper Foil 12; Can pass through processing modes such as screen painting processing, etching and processing or plating processing respectively at outer surface; Machine-shaping has preinstalled circuit layout and induction zone 111,121 and is actinoid a plurality of

plain conductor

1111,1211, can save time, the reduction manufacturing cost of manufacturing procedure; And upper strata Copper Foil 11, lower floor's Copper Foil 12 outer surfaces in two relative formula copper foil layers 1; Respectively between the storage tank 20 of the induction zone 111,121 of the preinstalled circuit of moulding and base material 2; Boring processing capable of using, Milling Process or punch process form a plurality of through hole 110,120, a plurality of open-work 21 respectively; And a plurality of through hole 110,120, open-work 21 are a plurality of

plain conductors

1111,1211 that the radiation wire is arranged respectively, and may be molded to circle, annular, rectangle, polygon or geometric form etc., are actinoid arrangement mode; As for each open-work 21 inside of each through hole 110,120 and base material 2, can be through electroplating machine-shaping copper product, aluminum, nickel material or alloy material etc., the metallic conductor 3 of various metal materials.

And base material 2; Process by insulating material; And can convex with limit body 201 in storage tank 20 inside; And take in ringwise metal inner core 22 in the storage tank 20, and and metal inner core 22 can be magnet inner core, irony inner core, copper inner core or noncrystalline metal inner core etc., various have materials such as magnetic material, nonmagnetic metal material; And the storage tank 20 of base material 2, metal inner core 22 can be rounded, annular, rectangle, polygon, hollow shaped as frame shape or geometric form etc., and the corresponding different shape design of moulding is so that metal inner core 22 is incorporated in the storage tank 20.

And two copper foil layers 1, base material 2 are shaped to the tabular inductance element of thin type; And the upper strata Copper Foil 11, the lower floor's Copper Foil 12 that utilize two copper foil layers 1 are coated on the base material 2 and metal inner core 22 outsides; Then the inductance element of moulding has characteristics such as volume is little, inductive effect is good, rectification function is good, can not take too large space during practical application; Can meet light, thin, short, the little design concept of electronic product, sufficient room carries out circuit layout so that the preinstalled circuit plate of electronic product has more; And inductance element is when practical application; After input side 112 entering of electric current,, transmit via a plurality of through holes 110 inner metallic conductors 3 again through a plurality of plain conductors 1111 of induction zone 111 by upper strata Copper Foil 11; Behind a plurality of open-works 21 through base material 2; Transfer to a plurality of through holes 120 of lower floor's Copper Foil 12, the induction zone 121 of a plurality of plain conductor 1211, and utilize a plurality of

plain conductors

1111,1211 of each induction zone 111,121, cooperate the metal inner core 22 of base material 2; Form conducting of continuous reeling formula metal magnetic induction loop effect; Again electric current is outwards exported by the outlet side 113 of upper strata copper foil plate 11, the outlet side 122 of lower floor's Copper Foil 12 respectively, is reached the purpose that produces good metal magnetic induction loop effect, rectification function so that inductance element stable carry out charge and discharge, rectification etc.; And when inductance element passed through at electric current, the inductance magnetic field of generation also was difficult for disturbing other electronic component of periphery.

Moreover the upper strata Copper Foil 11 of two relative formula copper foil layers 1, the outer surface of lower floor's Copper Foil 12 are after the machine-shaping preinstalled circuit layout; The outer surface of Copper Foil 11, lower floor's Copper Foil 12 in the upper strata again, the resin bed of coating insulation respectively, and be coated with or the manufacturing procedure mode of electrostatic spraying through screen painting, curtain; With the green lacquer of liquid photosensitive, be coated on respectively on the resin bed of outer surface of upper strata Copper Foil 11, lower floor's Copper Foil 12, upper strata Copper Foil 11, lower floor's Copper Foil 12 are dried handle the back cooling again; And with upper strata Copper Foil 11, lower floor's Copper Foil 12 transmission region at egative film; Implement exposure process through in the ultraviolet exposure machine, film with moulding so that green lacquer after the transmission region of egative film receives ultraviolet irradiation, produces assembly effect; Remove and utilize aqueous sodium carbonate not developed by the zone of illumination; Be high-temperature baking operation capable of using, so that contained resin bed sclerosis and take shape in upper strata Copper Foil 11, lower floor's Copper Foil 12 outer surfaces in the green lacquer, through the resin bed of coating insulation; The preinstalled circuit layout of protection upper strata Copper Foil 11, the 12 outer surface moulding of lower floor's Copper Foil avoids the phenomenon of oxidation and solder shorts to take place.

Be with; The above is merely preferred embodiment of the present invention, and is non-so limit to claim of the present invention, the structure of inductance element of the present invention; Clamping base material 2, metal inner core 22 between upper strata Copper Foil 11 through two relative formula copper foil layers 1, the lower floor's Copper Foil 12; And the outer surface of Copper Foil 11, lower floor's Copper Foil 12 in the upper strata has the formed induction zone 111,121 of preinstalled circuit layout and a plurality of through hole 110,120, a plurality of

plain conductor

1111,1211 respectively, and a plurality of

plain conductors

1111,1211 of each induction zone 111,121; System is with respect to the metal inner core 22 of base material 2; A plurality of open-works 21 of 110,120 difference of a plurality of through holes contraposition base material 2, and in a plurality of through holes 110,120 and a plurality of open-work 21 machine-shaping metallic conductors 3, so that the induction zone 121 of the induction zone 111 of upper strata Copper Foil 11, lower floor's Copper Foil 12; Metallic conductor 3 through each through hole 110,120 and each open-work 21 inside; Form conducting of continuous reeling formula metal magnetic induction loop effect, utilize two 1 clamping base material 2 of relative formula copper foil layer and metal inner cores 22 in order to do reaching, group constitutes the purpose of the inductance element that volume is little, inductive effect is good; And a plurality of

plain conductors

1111,1211 of each induction zone 111,121; The system be the radiation wire be flattened on two copper foil layers, 1 outer surface, also be difficult for touching peripheral electronic component, also can reduce and peripheral electronic component between the magnetic wave interference phenomenon.

The structure of the inductance element of the invention described above, in reality implement, when using, for can having following advantage, as:

(1) 1 coating of two of inductance element relative formula copper foil layers, clamping base material 2, metal inner core 22; Can reduce the volume size of inductance element; Meet light, thin, short, the little design concept of electronic product; Also can not take too large space, carry out circuit layout so that the preinstalled circuit plate has sufficient room.

(2) outer surface of the upper strata Copper Foil 11 of two of inductance element relative formula copper foil layers 1, lower floor's Copper Foil 12; Has the formed plane of preinstalled circuit layout pattern induction zone 111,121 respectively; And 110,120 of a plurality of through holes are actinoid a plurality of

plain conductor

1111,1211; Interlink to form the metal magnetic induction loop effect of continuous reeling formula; Between a plurality of

plain conductors

1111,1211 and each metallic conductor 3, be conducting of continuous reeling formula metal magnetic induction loop, and then solve the bottleneck that inductance element uses metal coiling semi-automation.

(3) volume is little after the inductance element moulding; And during the interior metallic conductor 3 of a plurality of

plain conductors

1111,1211 of each induction zone 111,121 of electric current through two relative formula copper foil layers 1 and a plurality of through hole 110, more than 120 open-work 21; Formed magnetic field; Be difficult for producing disturbed condition, can make that the electric current of preinstalled circuit plate or signal transmission are stable, rectification function is good with the electronic component of periphery.

(4) the little inductance element of volume, by two copper foil layers, 1 surface of inductance element, a plurality of actinoid

plain conductors

1111,1211 of the type that is tied to form and preset circuit layout replace artificial coiling, and can reduce the manufacturing cost of inductance element.

The present invention is the structure Design that is primarily aimed at inductance element; For passing through clamping base material, metal inner core between two relative formula copper foil layers; And utilize the induction zone of two copper foil layer outer surfaces, respectively with respect to the metal inner core, and a plurality of through holes of two copper foil layers a plurality of open-works of base material relatively then; And in a plurality of through holes, open-work the machine-shaping metallic conductor; So that the induction zone of two copper foil layers forms conducting of continuous reeling formula metal magnetic induction loop, be main key protection point to reach moulding volume inductance element little, that reduce cost, and so that inductance element when practical application; Not taking the too large space of preinstalled circuit plate, is only to make inductance element meet the function of light, thin, short, the little design concept of electronic product.

More than shown in be merely the preferred embodiments of the present invention, only be illustrative for the purpose of the present invention, and nonrestrictive.Understand the common knowledge personnel of this professional skill field tool, in spirit that claim of the present invention limited and scope, can carry out many changes, revise it, even equivalent change, but all will fall in protection scope of the present invention.

Claims

1. the structure of an inductance element comprises that two outer surfaces have the substrate of copper foil layer, metal inner core, is characterized in that:

This base material inside has been taken in the metal inner core and has been had a plurality of open-works; Two outer surfaces are provided with the copper foil layer of a plurality of through holes of tool; And the inner forming metal conductor respectively of a plurality of through holes, a plurality of open-work; And the induction zone that cooperates two copper foil layers is between actinoid plain conductor and the metal inner core, forms conducting of continuous reeling formula metal magnetic induction loop effect, and has the preset configuration of induction zone, input side and outlet side in two copper foil layer surface formings.

2. the structure of inductance element as claimed in claim 1; It is characterized in that; This two relative formula copper foil layer comprises upper strata Copper Foil, lower floor's Copper Foil, and the induction zone of upper strata Copper Foil, lower floor's Copper Foil, is respectively equipped with to be the radiation wire and to arrange a plurality of through holes, a plurality of plain conductor of conducting; And a plurality of through holes, a plurality of plain conductor are rounded, annular respectively, the radiation wire arrangement of rectangle, polygon or geometric form.

3. the structure of inductance element as claimed in claim 2 is characterized in that, the configuration of this upper strata Copper Foil has outwards extended input side, outlet side respectively by induction zone, and the configuration of lower floor's Copper Foil has outwards extended outlet side.

4. the structure of inductance element as claimed in claim 1; It is characterized in that; This base material by clamping, be fixed between the two relative formula copper foil layers, and substrate surface is provided with the storage tank of taking in the metal inner core with respect to the induction zone of two copper foil layers; And the inside and outside a plurality of open-works that are respectively equipped with respect to a plurality of through holes of two copper foil layers of storage tank, and each through hole, each open-work inside respectively moulding make two induction zones be the metallic conductor that conducts.

5. the structure of inductance element as claimed in claim 4; It is characterized in that; This base material is processed by insulating material; And convex with limit body in storage tank inside, and in storage tank, take in ringwise metal inner core, and the metal inner core is magnet inner core, irony inner core, copper inner core or noncrystalline metal inner core, the material with magnetic, nonmagnetic metal material.

6. the structure of inductance element as claimed in claim 4 is characterized in that, the storage tank of this base material, metal inner core are rounded, annular, rectangle, polygon, hollow shaped as frame shape or geometric form.

7. the structure of inductance element as claimed in claim 1; It is characterized in that; Through electroplating the metallic conductor of machine-shaping copper product, aluminum, nickel material or alloy material,, the induction zone of two relative formula copper foil layers forms conducting of continuous reeling formula metal magnetic induction loop effect in each through hole of these two relative formula copper foil layers, each open-work of base material so that being.

8. the structure of inductance element as claimed in claim 1 is characterized in that, after the preinstalled circuit layout moulding of this two relative formula copper foil layer outer surface; Again in the resin bed of two copper foil layer outer surface coatings insulation; And be coated with or the manufacturing procedure of electrostatic spraying through screen painting, curtain, the green lacquer of liquid photosensitive is coated on the resin bed of two copper foil layer outer surfaces, two copper foil layers are dried handle the back cooling again; And implement exposure process in the process ultraviolet exposure machine; Film with moulding so that green lacquer produces assembly effect after ultraviolet irradiation, and utilize aqueous sodium carbonate, developed in the zone that does not receive illumination on filming and remove; Be high-temperature baking operation capable of using, so that contained hardening of resin and take shape in two copper foil layer outer surfaces in the green lacquer.

9. the structure of an inductance element comprises that two side surfaces have the substrate of copper foil layer, metal inner core, is characterized in that:

This base material is provided with the metal inner core that is clamped between the two side surface copper foil layers, and the induction zone of difference moulding of two copper foil layers surface and metal inner core formation continuous reeling formula metal magnetic induction loop effect.

10. the structure of inductance element as claimed in claim 9; It is characterized in that; This base material inside is provided with the storage tank of taking in the metal inner core; And be respectively equipped with a plurality of open-works in the storage tank medial and lateral, and a plurality of relatively open-work is respectively equipped with a plurality of through holes in the induction zone of two copper foil layers, and between the through hole of a plurality of medial and lateral and be provided with actinoid plain conductor.

11. the structure of inductance element as claimed in claim 10; It is characterized in that; These a plurality of through holes, a plurality of open-works inside moulding respectively conduct the metallic conductor of the induction zone of two copper foil layers; And cooperate the plain conductor between a plurality of through holes, form conducting of continuous reeling formula metal magnetic induction loop effect in the metal inner core.

12. the structure of inductance element as claimed in claim 11; It is characterized in that; Pass through to electroplate the metallic conductor of machine-shaping copper product, aluminum, nickel material or alloy material in each through hole of these two relative formula copper foil layers, each open-work of base material, so that the induction zone of two relative formula copper foil layers is continuous reeling formula metal magnetic induction loop effect.

13. the structure of inductance element as claimed in claim 10; It is characterized in that; This base material is that insulating material is processed; And convex with limit body in storage tank inside, and in storage tank, take in ringwise metal inner core, and the metal inner core is magnet inner core, irony inner core, copper inner core or noncrystalline metal inner core, tool magnetic material, nonmagnetic metal material.

14. the structure of inductance element as claimed in claim 10 is characterized in that, the storage tank of this base material, metal inner core are rounded, annular, rectangle, polygon, hollow shaped as frame shape or geometric form.

15. the structure of inductance element as claimed in claim 9; It is characterized in that; These base material two outer surfaces are the relative formula copper foil layer of moulding respectively; And two relative formula copper foil layers comprise upper strata Copper Foil, lower floor's Copper Foil, and respectively at upper strata Copper Foil, the actinoid induction zone of lower floor's Copper Foil moulding, each induction zone is respectively equipped with a plurality of through holes that are radiation wire arrangement conducting; And the actinoid plain conductor of moulding between a plurality of through holes, a plurality of plain conductors are rounded, annular, the radiation wire of rectangle, polygon or geometric form is arranged.

16. the structure of inductance element as claimed in claim 15 is characterized in that, this upper strata Copper Foil is provided with the configuration of tool induction zone, and configuration has outwards extended input side, outlet side respectively by induction zone; And lower floor's Copper Foil is provided with the configuration with induction zone, and configuration has outwards extended outlet side by induction zone.