CN204303496U - Electrical inductor assembly - Google Patents
Electrical inductor assembly Download PDFInfo
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- CN204303496U CN204303496U CN201420757982.4U CN201420757982U CN204303496U CN 204303496 U CN204303496 U CN 204303496U CN 201420757982 U CN201420757982 U CN 201420757982U CN 204303496 U CN204303496 U CN 204303496U
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- inductor
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- magnetic cores
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Abstract
The utility model provides a kind of electrical inductor assembly, this electrical inductor assembly is formed by multiple inductor packaging, inductor comprises inductance coil and two E-type magnetic cores, magnetic core comprises foundation and the center pillar that protruded out towards the same side by foundation and two side columns, foundation, center pillar and two side columns form a core plane jointly, and two side columns are respectively in the both sides of center pillar; The openend of two magnetic cores is facing, and the center pillar of two magnetic cores is facing, the side column of two magnetic cores between two and face, face offset, two magnetic cores form two magnetic loops; Inductance coil winding, on the center pillar of two magnetic cores, forms air gap between the center pillar of two magnetic cores; The orthogonal array of inductor close-packed arrays on core plane, the core plan face of every two adjacent inductors offsets.The external electromagnetic interference of this electrical inductor assembly reduces greatly, and significantly improves space availability ratio, namely makes that the volume of inductor is little, Magnetic Shielding Effectiveness good.
Description
Technical field
The utility model relates to inductors technique field, relates more specifically to a kind of electrical inductor assembly.
Background technology
Electric equipment products develops rapidly towards miniaturized, multifunction direction increasingly, in these products power inductor due to its volume larger, especially when needs use multiple power inductor, its space availability ratio is then lower, a lot of degree hinders the miniaturization of product; Further, these power inductor Magnetic Shielding Effectiveness are poor, easily produce electromagnetic interference to other circuit, especially can produce the various restriction being difficult to evade when the various functional module of product set to the Design and implementation of the multifunction of product.Therefore, existing inductor requires further improvement.
Utility model content
The purpose of this utility model is to provide a kind of electrical inductor assembly, is intended to the problem solving low, the easy generation electromagnetic interference of existing inductor space availability ratio.
The utility model is achieved in that provides a kind of electrical inductor assembly, formed by multiple inductor packaging, described inductor comprises inductance coil and two E-type magnetic cores, described magnetic core comprises foundation and the center pillar that protruded out towards the same side by described foundation and two side columns, described foundation, described center pillar and two described side columns form a core plane jointly, and two described side columns are respectively in the both sides of described center pillar; The openend of two described magnetic cores is facing, and the center pillar of two described magnetic cores is facing, the side column of two described magnetic cores between two and face, face offset, two described magnetic cores form two magnetic loops; Described inductance coil winding, on the described center pillar of two described magnetic cores, forms air gap between the center pillar of two described magnetic cores;
Described inductor is the orthogonal array of close-packed arrays on described core plane, and the core plan face of every two adjacent described inductors offsets.
Further, at least one place in the described core plan face place of offseting of two adjacent described inductors offers air gap.
Further, described electrical inductor assembly also comprises the conducting plug be electrically connected respectively with the two ends of described inductance coil.
Further, described electrical inductor assembly also comprises the fixed head fixed with described inductor, and described conducting plug is vertically fixed on described fixed head.
Further, described inductance coil is arranged in the rectangular array of 1 × 2.
Further, described inductance coil is arranged in the rectangular array of 2 × 2.
Further, described conducting plug is conductive insert.
Further, described conducting plug is conductive pin.
In electrical inductor assembly of the present utility model, multiple inductor close-packed arrays, the core plan face of every two adjacent inductors offsets, this set not only makes the external electromagnetic interference of whole electrical inductor assembly greatly reduce, and significantly improve space availability ratio, make that the volume of inductor is little, Magnetic Shielding Effectiveness good, thus the demand of electric equipment products miniaturization, multifunction can be met better.Further, offer air gap in the outside at the magnetic core place of offseting, this not only further reduce inductor volume, improve Magnetic Shielding Effectiveness, also enhance the anti-saturation ability of inductor, thus realize lower D.C. resistance and higher rated current.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the magnetic core of the utility model preferred embodiment;
Fig. 2 is the structural representation of the inductor of the utility model preferred embodiment;
Fig. 3 is the arrangement schematic diagram of inductor in the electrical inductor assembly of the utility model first preferred embodiment;
Fig. 4 is the perspective view of the electrical inductor assembly of the utility model second preferred embodiment;
Fig. 5 is the arrangement schematic diagram of inductor in the utility model the 3rd preferred embodiment electrical inductor assembly;
Fig. 6 is the perspective view of the electrical inductor assembly of the utility model the 4th preferred embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.
In description of the present utility model, it will be appreciated that, term " on ", the orientation of the instruction such as D score, "front", "rear", "left", "right", position relationship be based on orientation shown in the drawings, position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, can not be interpreted as restriction of the present utility model.
Incorporated by reference to consulting Fig. 1, Fig. 2.Inductor 1 comprises inductance coil 11 and two magnetic cores, i.e. the first magnetic core 12 and the second magnetic core 13.
Wherein, magnetic core 12 is E-type magnetic core.Particularly, first magnetic core 12 comprises the foundation 124 extended along a direction (horizontal direction in Fig. 1, Fig. 2), and the center pillar 121 that vertically protrudes out towards side (direction straight up in Fig. 1, Fig. 2) of foundation 124 and two side columns 122,123, and two side columns 122,123 are respectively in the both sides of center pillar 121.The structure of foundation 124, center pillar 121 and two side columns 122,123 composition " E " font; In Fig. 1, Fig. 2, be somebody's turn to do the opening upwards of " E " character form structure.In the side of side column 122,123 away from center pillar 121, offer air gap 12a respectively; In the side away from center pillar 121 of foundation 124, offer air gap 12b.One end away from foundation 124 (i.e. openend 12P) of center pillar 121 also offers air gap 12c.
In the same manner, magnetic core 13 is also E-type magnetic core, particularly, second magnetic core 13 comprises the foundation 134 extended along a direction (horizontal direction in Fig. 2), and the center pillar 131 that vertically protrudes out towards side (direction straight down in Fig. 2) of foundation 134 and two side columns 132,133, and two side columns 132,133 list in the both sides of center pillar 131 symmetrically.Foundation 134, center pillar 131 and two side columns 132,133 composition " E " character form structure; In fig. 2, Open Side Down to be somebody's turn to do " E " character form structure.In the side of side column 132,133 away from center pillar 131, offer air gap 13a respectively; In the side away from center pillar 131 of foundation 134, offer air gap 13b.In one end away from foundation 134 of center pillar 131, also offer air gap (in figure non-label).
Both first magnetic core 12 and the second magnetic core 13 are only towards difference, and namely the first magnetic core 12 is opening up, the second magnetic core 13 opening down, and the towards the opposite and face, face of the openend of the first magnetic core 12 and the second magnetic core 13 offsets.Wherein, the side column 123 of the first magnetic core 12 and side column 132 faces of the second magnetic core 13 offset, and the side column 122 of the first magnetic core 12 and side column 133 faces of the second magnetic core 13 offset; The center pillar 121 of the first magnetic core 12 and the center pillar 131 of the second magnetic core 13 face.The air gap 13a that the air gap 12a that side column 123 is offered and side column 132 the are offered air gap 1a that a common composition sectional area is larger on the bearing of trend of air gap 12a, 13a; The air gap 13a that the air gap 12a that side column 122 is offered and side column 133 are offered forms the larger air gap 1a of a sectional area jointly.The air gap that the air gap 12c that center pillar 121 openend is offered and the openend of center pillar 131 are offered jointly forms a thicker air gap 12C on the thickness direction of air gap.
Thus, the first magnetic core 12 and the second magnetic core 13 form " saying " character form structure put upside down.The center pillar 121 of the first magnetic core 12 and center pillar 131 organization center post (not indicating in figure) of the second magnetic core 13, inductance coil 11 windings are on newel.When inductance coil 11 is energized, the excitation field that " saying " character form structure that the first magnetic core 12 and the second magnetic core 13 form can be inductance coil provides two magnetic loops P1, P2.
The existence of air gap 12C can improve the anti-current saturability of inductor 1 significantly.But, this inductor is when being used alone, quite a few magnetic potential that this design also correspondingly causes inductance coil 11 to produce all is added on air gap 12C, and then make that air gap 12C edge and contiguous magnetic circuit exist comparatively serious edge flux and stray flux, namely easy generation other circuit modules is disturbed.
Core material in the utility model preferentially selects the core material with higher magnetic permcability, also multiple identical or roughly the same above-mentioned inductor close-packed arrays is become rectangular array, and be packaged into the electrical inductor assembly of integration, instead of single inductor is applied, to improve magnetic utilization ratio, to reduce edge flux and stray flux, and then reduce volume and reduce external electromagnetic interference.Below in conjunction with specific embodiment, electrical inductor assembly is described in further detail.
first embodiment:
Incorporated by reference to consulting Fig. 2, Fig. 3.In the present embodiment, electrical inductor assembly 2 comprises two inductors as shown in Figure 2, is labeled as inductor 10a and inductor 10b respectively for specifically distinguishing.The central shaft of the inductance coil 11 of inductor 10a, 10b is parallel to each other, and in Fig. 1, Fig. 2, the central shaft of the inductance coil 11 of inductor 10a, 10b is then and extends along the vertical direction.The face, side column face of two inductor 10a, 10b offsets, and namely the side column 132 of inductor 10a offsets with side column 133 faces of inductor 10b, and the side column 123 of inductor 10a offsets with side column 122 faces of inductor 10b, and then close-packed arrays becomes the rectangular array of 1 × 2.The place that offsets outside the magnetic core 12 of these two adjacent inductor 10a, 10b, the air gap 1a of inductor 10a and the air gap 1a of inductor 10a, the air gap 1a ' that common composition one is thicker.
After this specific arrangement again after binding agent bonds and encapsulates, just can obtain the final electrical inductor assembly of the present embodiment.Inductor packaging process and the general inductor packaging of the present embodiment are similar, therefore do not repeat them here.In other some embodiments, the central shaft of the inductance coil 11 of each inductor 1 is not necessarily parallel, the condition of a demand fulfillment above-mentioned " face, face offsets ".
In the present embodiment, magnetic core is made up of MnZn ferrite material; In other some embodiments, magnetic core is by being also made up of the material of other high magnetic permeabilities, and such as nickel-zinc-ferrite material is made.
Due to two inductor 10a, 10b close-packed arrays, its edge flux at the place of abutting against and stray flux weaken mutually, and then greatly reduce external electromagnetic interference, and namely Magnetic Shielding Effectiveness is good; Improve integrated level simultaneously, reduce volume.Particularly the existence of air gap 1a ' then further limit edge flux and stray flux externally spreads, and then improves magnetic flux utilance, reduces D.C. resistance; And two influencing each other of inductor 10a, 10b can be down to reduced levels, the noise produced when thus also can reduce inductor work.
Due in the present embodiment, the side that inductor 10a, 10b are offering air gap 12b, 13b does not offset, and therefore air gap 12b, 13b can also omit as one sees fit; Inductor 10a, 10b also do not offset away from air gap 12a and 13a on air gap 1a ' side, also can omit as one sees fit.In some other embodiments, also even air gap 12a, 13a can not be set, only just can reach technical purpose of the present utility model by the close-packed arrays between two inductors, namely inductor volume is little, Magnetic Shielding Effectiveness good, because the edge flux of the adjacent side of this two inductor and stray flux are greatly weakened due to the mutual restriction between two inductors.
second embodiment:
Incorporated by reference to consulting Fig. 3 and Fig. 4.Electrical inductor assembly in the present embodiment, compared with the electrical inductor assembly of the first embodiment, also comprises fixed head 14 and vertical four conducting plugs 16a, 16b, 16c and 16d be fixed on fixed head 14.Wherein, fixed head 14 encapsulates together with inductor 10, is namely fixed by fill material 15 between fixed head 14 and inductor 10.This fill material 15 can select resin material, such as polypropylene material, and the material of fixed head 14 can select phenolic resins.Wherein, conducting plug 16a is electrically connected with one end of the inductance coil 11 of inductor 10b, and conducting plug 6b is electrically connected with the other end of the inductance coil 11 of inductor 10b; Conducting plug 16c is electrically connected with one end of the inductance coil 11 of inductor 10a, and conducting plug 16d is electrically connected with the other end of the inductance coil 11 of inductor 10a.These multiple conducting plugs can be set to conductive insert or conductive pin, or the combination of conductive insert and conductive pin.
By arranging conducting plug, make inductor of the present utility model can be conveniently used in various electronic and electrical equipment further, the degree of modularity is high; By arranging fixed head, then facilitate the installation of conducting plug, and the bonding strength between each inductor can be strengthened, prevent from being separated during vibration.
3rd embodiment:
Incorporated by reference to consulting Fig. 2, Fig. 3, Fig. 5.In the present embodiment, be with the difference of the first embodiment, the electrical inductor assembly 10 in the present embodiment comprises two inductors as shown in Figure 2 further, for ease of distinguishing, it is labeled as inductor 10c, 10d respectively.
In these four inductors, the relative position relation of inductor 10c, 10d is identical with inductor 10a, 10b relative position relation in the second embodiment.In the present embodiment, the foundation 124 of inductor 10a offsets with foundation 134 faces of inductor 10c, and the air gap 12b of inductor 10a and the air gap 13b of inductor 10c faces simultaneously, together with air gap 12b is on the bearing of trend of air gap 13b, form new air gap 1b.Similarly, the relative position relation of inductor 10b, 10d is identical with the relative position relation of inductor 10a, 10c, namely the foundation 124 of inductor 10c offsets with foundation 134 faces of inductor 10d, the air gap 12b of inductor 10c and the air gap 13b of inductor 10d faces simultaneously, together with air gap 12b is on the bearing of trend of air gap 13b, form new air gap 1b.
These four inductor 10a, 10b, 10c, 10d close-packed arrays become the rectangular array of 2 × 2 thus.Relative first embodiment is many two faces, face, place offset place, so just further increases the closeness of inductor, enhances Magnetic Shielding Effectiveness.
Due in the present embodiment, the air gap 13b of inductor 10a, 10b, the air gap 12b of inductor 10c, 10d, and air gap 12a, 13a outside inductor 10a, 10b, 10c, 10d is all inoperative, therefore can also omit as one sees fit in other some embodiments.In some other embodiments, inductor also can not arrange air gap completely, only just can reach technical purpose of the present utility model by the close-packed arrays between two inductors, namely inductor volume is little, Magnetic Shielding Effectiveness good, because the edge flux of the adjacent side of these four inductors and stray flux are greatly weakened due to the mutual restriction between two inductors.
4th embodiment:
Incorporated by reference to consulting Fig. 5, Fig. 6.In the present embodiment, the electrical inductor assembly in the present embodiment, compared with the electrical inductor assembly of the 3rd embodiment, also comprises fixed head 14 and eight conducting plugs 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h on vertical fixing fixed head 14.Wherein, fixed head 14 encapsulates together with inductor 10, is namely fixed by fill material 15 between fixed head 14 and inductor 10.This fill material 15 can excellent epoxy resin, and the material of fixed head 14 can select aminoplast.Wherein, conducting plug 16a is electrically connected with one end of the inductance coil 11 of inductor 10b, and conducting plug 16b is electrically connected with the other end of the inductance coil 11 of inductor 10b; Conducting plug 16c is electrically connected with one end of the inductance coil 11 of inductor 10a, and conducting plug 16d is electrically connected with the other end of the inductance coil 11 of inductor 10a; Conducting plug 16e is electrically connected with one end of the inductance coil 11 of inductor 10d, and conducting plug 16f is electrically connected with the other end of the inductance coil 11 of inductor 10d; Conducting plug 16g is electrically connected with one end of the inductance coil 11 of inductor 10c, and conducting plug 16h is electrically connected with the other end of the inductance coil 11 of inductor 10c.
Describe the rectangular array of in the utility model 1 × 2 and 2 × 2 above by means of only specific embodiment, but in other some embodiments, can be just also the rectangular array of other ranks numbers, or be only a part for this rectangular array; Such as, can also be the rectangular array of 1 × 2, when the rectangular array of formation 1 × 2, be then that the foundation of the foundation of a magnetic core of an inductor and a magnetic core of another inductor faces.In addition, it should be noted that, on inductor adjoining in the utility model, the direction of winding of institute's galvanization direction and inductance coil is unimportant, changes alone the sense of current of any one or multiple inductance coil or direction of winding and all can reach the effect that the utility model will reach.
Following brief description the utility model is for the manufacture of the method for above-mentioned electrical inductor assembly, the method comprising the steps of: make the openend of two magnetic cores facing, the center pillar of two magnetic cores is facing, the side column of two magnetic cores between two and face, face offset, two magnetic cores form two magnetic loops, form air gap between the center pillar of two magnetic cores; Curing agent, on the center pillar of two magnetic cores, is dried after inductance coil applies curing agent, thus is made inductor by the inductance coil winding of then being painted by bag; By multiple inductor adhesive bond of making to form compact arranged rectangular array, and the core plan face of every two adjacent inductors is offseted, then by fill material by inductor mold pressing integral packaging.
Offer in the embodiment of air gap at some other needs at face, the face place of offseting, available following methods manufactures above-mentioned electrical inductor assembly: at least one place in the predetermined face face place of offseting of two magnetic cores offers air gap; Make the openend of two magnetic cores facing, the center pillar of two magnetic cores is facing, the side column of two magnetic cores between two and face, face offset, two magnetic cores form two magnetic loops, form air gap between the center pillar of two magnetic cores; Curing agent, on the center pillar of two magnetic cores, is dried after inductance coil applies curing agent, thus is made inductor by the inductance coil winding of then being painted by bag; By multiple inductor adhesive bond of making to form compact arranged rectangular array, and the core plan face of every two adjacent inductors is offseted, the air gap of two magnetic cores communicates and jointly forms a total air gap, then by fill material by inductor mold pressing integral packaging.
Need to arrange in the embodiment of fixed head in other some, available following methods manufactures above-mentioned electrical inductor assembly: at least one place in the predetermined face face place of offseting of two magnetic cores offers air gap; Make the openend of two magnetic cores facing, the center pillar of two magnetic cores is facing, the side column of two magnetic cores between two and face, face offset, two magnetic cores form two magnetic loops, form air gap between the center pillar of two magnetic cores; Curing agent, on the center pillar of two magnetic cores, is dried after inductance coil applies curing agent, thus is made inductor by the inductance coil winding of then being painted by bag; By multiple inductor adhesive bond of making to form compact arranged rectangular array, and the core plan face of every two adjacent inductors is offseted, the air gap of two magnetic cores communicates and jointly forms a total air gap, then by fill material by inductor, fixed head and conducting plug mold pressing integral packaging.
Based on above explanation, those skilled in the art correctly, intactly can implement the utility model.
Should be appreciated that specific embodiment described above only in order to explain the utility model, and be not used in restriction the utility model.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (8)
1. an electrical inductor assembly, it is characterized in that, formed by multiple inductor packaging, described inductor comprises inductance coil and two E-type magnetic cores, described magnetic core comprises foundation and the center pillar that protruded out towards the same side by described foundation and two side columns, described foundation, described center pillar and two described side columns form a core plane jointly, and two described side columns are respectively in the both sides of described center pillar; The openend of two described magnetic cores is facing, and the center pillar of two described magnetic cores is facing, the side column of two described magnetic cores between two and face, face offset, two described magnetic cores form two magnetic loops; Described inductance coil winding, on the described center pillar of two described magnetic cores, forms air gap between the center pillar of two described magnetic cores;
Described inductor is the orthogonal array of close-packed arrays on described core plane, and the core plan face of every two adjacent described inductors offsets.
2. electrical inductor assembly as claimed in claim 1, is characterized in that, at least one place in the described core plan face place of offseting of two adjacent described inductors offers air gap.
3. the electrical inductor assembly according to any one of claim 1 to 2, is characterized in that, also comprises the conducting plug be electrically connected respectively with the two ends of described inductance coil.
4. electrical inductor assembly as claimed in claim 3, it is characterized in that, also comprise the fixed head fixed with described inductor, described conducting plug is vertically fixed on described fixed head.
5. electrical inductor assembly as claimed in claim 3, it is characterized in that, described inductance coil is arranged in the rectangular array of 1 × 2.
6. electrical inductor assembly as claimed in claim 3, it is characterized in that, described inductance coil is arranged in the rectangular array of 2 × 2.
7. electrical inductor assembly as claimed in claim 3, it is characterized in that, described conducting plug is conductive insert.
8. electrical inductor assembly as claimed in claim 3, it is characterized in that, described conducting plug is conductive pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757982.4U CN204303496U (en) | 2014-12-04 | 2014-12-04 | Electrical inductor assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757982.4U CN204303496U (en) | 2014-12-04 | 2014-12-04 | Electrical inductor assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204303496U true CN204303496U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757982.4U Withdrawn - After Issue CN204303496U (en) | 2014-12-04 | 2014-12-04 | Electrical inductor assembly |
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| Country | Link |
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| CN (1) | CN204303496U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719785A (en) * | 2014-12-04 | 2016-06-29 | 深圳振华富电子有限公司 | Inductor assembly and manufacturing method therefor |
-
2014
- 2014-12-04 CN CN201420757982.4U patent/CN204303496U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105719785A (en) * | 2014-12-04 | 2016-06-29 | 深圳振华富电子有限公司 | Inductor assembly and manufacturing method therefor |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20171229 |
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| AV01 | Patent right actively abandoned |