CN213988553U - Combined high-temperature alloy power inductor - Google Patents
Combined high-temperature alloy power inductor Download PDFInfo
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- CN213988553U CN213988553U CN202022937756.2U CN202022937756U CN213988553U CN 213988553 U CN213988553 U CN 213988553U CN 202022937756 U CN202022937756 U CN 202022937756U CN 213988553 U CN213988553 U CN 213988553U
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Abstract
The utility model discloses a combined high-temperature alloy power inductor, which is formed by bonding and combining an inductance magnet body and an inductance conductor, wherein the inductance magnet body comprises an alloy magnetic cover and an alloy center post, and the inductance conductor is a forming coil; the alloy magnetic cover is integrally formed, a non-through coil accommodating groove used for accommodating a formed coil is formed in the alloy magnetic cover, the alloy central column penetrates through the coil central position of the formed coil, the alloy central column and the formed coil form a whole, and the alloy central column and the formed coil are arranged in the coil accommodating groove together. The utility model discloses overall structure is compact, the regular and value of sensing coverage of external shape is wide, has satisfied under the prerequisite that power inductance finished product used needs, and it has promoted its setting flexibility in various circuit structure.
Description
Technical Field
The utility model relates to a power inductance device particularly, relates to a combination formula superalloy power inductance with higher inductance value, belongs to inductance processing technology field.
Background
The inductor is one of the most common components in electronic devices and one of the important components in circuits, and is widely used in various circuits to achieve the functions of filtering, storing energy, matching and resonating.
Along with the continuous development of the fields of the internet, the internet of things and the like, various electronic devices are gradually popularized, and the products of equipment manufacturers are increasingly frequently updated. In combination with the current trend of integration and miniaturization of electronic devices, the internal space of the electronic devices is fully utilized, and the arrangement and layout among the elements in the electronic devices are more compact, which becomes a necessary technical choice.
Taking a common consumer-grade personal computer as an example, since the product itself is more oriented to the application scene in life, the problem of space utilization is not only considered in the design, but also the efficient operation of various electrical elements inside the device is ensured on the premise of close arrangement without mutual interference. In terms of hardware corresponding to the above design concept, the requirements for the power inductor used in the device are also more stringent, including high frequency, large current, high temperature resistance, low DCR (direct current resistance), low EMI (electromagnetic interference), and so on, and under the constraint of the above requirements, various defects of the conventional power inductor begin to emerge gradually.
Firstly, most of power inductors in the prior art are of horizontal structures, and the overall structure is not compact and irregular enough, so that the occupancy rate of the power inductors to the space is too high, the overall layout of the circuit is restricted, and the simplified design of the circuit is influenced. The existing vertical power inductor in the prior art is often low in inductance value and cannot meet the use requirements in various practical application scenes.
Secondly, in consideration of processing cost and process difficulty, in the prior art, a shell of a plurality of power inductors, namely a magnet part, adopts a split type structural design, and all parts are bonded into a whole through adhesives such as glue. In the subsequent practical use process of the power inductor, the problems of reduced bonding effect and magnet structure separation caused by aging of the adhesive are easy to occur. Meanwhile, when the power inductor is connected with a large current and is in a high-frequency environment, the combined part is easy to shake, and then serious noise is generated.
In summary, based on the above technical defects, how to provide a novel combined type superalloy power inductor with a higher inductance value based on various prior arts, which not only ensures the reliability of the application thereof, but also further improves the quality of the finished product, is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention provides a combined superalloy power inductor with a high inductance value, as follows.
A combined high-temperature alloy power inductor is formed by bonding and combining an inductor magnet and an inductor conductor, wherein the inductor magnet comprises an alloy magnetic cover and an alloy center post, and the inductor conductor is a formed coil; the alloy magnetic cover is integrally formed, a non-through coil accommodating groove used for accommodating the formed coil is formed in the alloy magnetic cover, the alloy center pillar is arranged in the coil center position of the formed coil in a penetrating mode, the alloy center pillar and the formed coil form a whole body, and the alloy center pillar and the formed coil are arranged in the coil accommodating groove together.
Preferably, the alloy magnetic shield is of a flat cubic structure, the coil accommodating groove is formed in the end face of one side of the circumferential direction of the alloy magnetic shield, and pin leading-out grooves are formed in the positions of the two sides of the notch of the coil accommodating groove.
Preferably, the equivalent number of turns of the shaped coil is 2.
Preferably, the forming coil is formed by bending a special-shaped wire rod which is subjected to electroplating treatment; the special-shaped wire rod comprises two sections of coil utility sections which are equal in length and are arranged along the horizontal direction, the connection is realized at one end of each coil utility section through one coil connecting section, the other end of each coil utility section is connected with one section of coil pin section along the vertical direction, the two sections of the coil utility sections are not coaxial, the two ends of each coil connecting section are connected with one section of coil utility sections in a staggered manner, the width of each coil connecting section in the vertical direction is larger than the two sections of the sum of the width of each coil utility section in the vertical direction.
Preferably, in the molding state of the molding coil, the two coil utility sections are respectively bent to form two coil utility portions, the whole of the coil utility portions is in a rectangular annular structure, the two coil pin sections are respectively bent to form two coil pin portions, the centers of the two coil utility portions are coaxially arranged, and the two coil utility portions and the two coil pin portions jointly form the coil center position of the molding coil.
Preferably, the two coil utility parts are arranged in parallel, and the two coil utility parts are not in contact with each other and are separated by a gap.
Preferably, the alloy center pillars are integrally formed and are flat cubes as a whole, and the shapes and the sizes of the alloy center pillars are matched with the shapes and the sizes of the coil center positions of the formed coils one by one.
Preferably, in a combined state, the alloy center pillar penetrates through a coil center position of the molded coil, the two coil center positions form a whole, and the two coil center pillars are jointly bonded and fixedly arranged in the coil accommodating groove, at this time, the two coil lead parts are respectively embedded in the two lead leading-out grooves, and outer end faces of the coil lead parts and outer end faces of the alloy magnetic covers are coplanar.
Preferably, in the assembled state, an air gap space exists between the formed coil and the coil accommodating groove, and the formed coil and the alloy center pillar are separated by an air gap space.
Compared with the prior art, the utility model discloses an advantage mainly embodies in following several aspects:
the utility model discloses a combination formula superalloy power inductance, overall structure is compact, the outside shape is regular, and the pin on it all sets up in the off-the-shelf homonymy surface of power inductance, under the prerequisite of having guaranteed power inductance finished product result of use, has reduced holistic volume of inductance device and occupation space effectively, provides convenience for its nimble application in various circuit structure.
And simultaneously, the utility model discloses an in the structure, the equivalent number of turns of shaping coil is more, overall structure is complete for the off-the-shelf inductance value of power inductance is great, coverage can reach 0.1 mu h ~0.68 mu h, under the prerequisite of having guaranteed the off-the-shelf result of use of power inductance, furthest has extended the application scene.
Furthermore, the utility model discloses an among the structure of combination formula superalloy power inductance, the structure of outside alloy magnetic shield formula as an organic whole, and the inside great clearance that does not also exist of device, the stability when having shown ground promotion power inductance finished product and using, avoided the phenomenon because of the device shake noise production as far as possible.
Finally, the utility model discloses also for other relevant schemes in the same field provide the reference basis, can extend the extension with this, apply to this type of structure and method among the technical scheme of the inductance device of other combination forms, have very wide application prospect.
The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master.
Drawings
Fig. 1 is a schematic view of the overall structure of the utility model in a combined state;
FIG. 2 is a schematic structural view of the alloy magnetic shield of the present invention;
fig. 3 is a schematic structural view of the middle forming coil and the alloy center pillar in a disassembled state.
Wherein: 1. an alloy magnetic shield; 11. a coil receiving groove; 12. a pin leading-out groove; 2. forming a coil; 21. a coil utility part; 22. a coil lead part; 3. the alloy center pillar.
Detailed Description
The utility model provides a combination formula superalloy power inductance with higher inductance value specifically as follows.
As shown in fig. 1-3, the present invention discloses a combined high temperature alloy power inductor, which is formed by bonding and combining an inductor magnet and an inductor conductor, wherein the inductor magnet comprises an alloy magnetic cover 1 and an alloy center pillar 3, and the inductor conductor is a formed coil 2; the alloy magnetic cover 1 is integrally formed and provided with a non-through coil accommodating groove 11 for accommodating the formed coil 2, and the alloy center pillar 3 is arranged in the coil center position of the formed coil 2 in a penetrating manner, forms a whole with the formed coil 2 and is arranged in the coil accommodating groove 11 together.
Alloy magnetic shield 1 wholly is flat cubic structure, coil storage groove 11 sets up on the terminal surface of one side of alloy magnetic shield 1 circumference, the both sides department of 11 notch positions in coil storage groove has all seted up the pin and has drawn groove 12.
In the present embodiment, the equivalent number of turns of the shaped coil 2 is preferably 2.
Further, the forming coil 2 is formed by bending a special-shaped wire rod which is subjected to electroplating treatment. The special-shaped wire rod comprises two sections of coil utility sections which are equal in length and are arranged along the horizontal direction, the connection is realized at one end of each coil utility section through one coil connecting section, the other end of each coil utility section is connected with one section of coil pin section along the vertical direction, the two sections of the coil utility sections are not coaxial, the two ends of each coil connecting section are connected with one section of coil utility sections in a staggered manner, the width of each coil connecting section in the vertical direction is larger than the two sections of the sum of the width of each coil utility section in the vertical direction.
After the special-shaped wire rod is bent, in the forming state of the forming coil 2, the coil utility sections are bent to form two annular coil utility portions 21 respectively, the whole of the coil utility portions 21 is in a rectangular annular structure, the coil pin sections are bent to form two coil pin portions 22 respectively, and the centers of the coil utility portions 21 are coaxially arranged and the two coil pin portions jointly form the coil center position of the forming coil 2.
In order to avoid short circuit, the two coil utility parts 21 are arranged in parallel, and the two coil utility parts 21 are not in contact with each other and are separated from each other by a gap.
The alloy center pillar 3 is integrally formed and is integrally a flat cube, and the shape and the size of the alloy center pillar 3 correspond to those of the coil center position of the forming coil 2 in a one-to-one matching manner.
In the assembled state, the alloy center post 3 is disposed through the coil center of the formed coil 2, the two are integrated into a whole, and the two are jointly bonded and fixed in the coil accommodating groove 11, at this time, the two coil lead parts 22 are respectively embedded in the two lead leading grooves 12, and the outer end surfaces of the coil lead parts 22 are coplanar with the outer end surface of the alloy magnetic cover 1.
In addition, in order to ensure the practical use effect of the finished product of the power inductor, in the combined state, an air gap space exists between the formed coil 2 and the coil accommodating groove 11, and the formed coil 2 and the alloy center pillar 3 are separated by the air gap space. The effect of the provision of the air gap space here is to reduce the permeability, so that the properties of the shaped coil 2 are less dependent on the initial permeability of the material itself. And the arrangement of the air gap space can also avoid the magnetic saturation phenomenon under the condition of alternating current large signals or direct current bias and better control the inductance.
To sum up, the utility model discloses a combination formula superalloy power inductance, overall structure is compact, outside shape is regular, and the pin on it all sets up in the off-the-shelf homonymy surface of power inductance, under the prerequisite of having guaranteed power inductance finished product result of use, has reduced holistic volume of inductance device and occupation space effectively, provides convenience for its nimble application in various circuit structure.
And simultaneously, the utility model discloses an in the structure, the equivalent number of turns of shaping coil is more, overall structure is complete for the off-the-shelf inductance value of power inductance is great, coverage can reach 0.1 mu h ~0.68 mu h, under the prerequisite of having guaranteed the off-the-shelf result of use of power inductance, furthest has extended the application scene.
Furthermore, the utility model discloses an among the structure of combination formula superalloy power inductance, the structure of outside alloy magnetic shield formula as an organic whole, and the inside great clearance that does not also exist of device, the stability when having shown ground promotion power inductance finished product and using, avoided the phenomenon because of the device shake noise production as far as possible.
Finally, the utility model discloses also for other relevant schemes in the same field provide the reference basis, can extend the extension with this, apply to this type of structure and method among the technical scheme of the inductance device of other combination forms, have very wide application prospect.
In order to make the technical solution as clear as possible, the following briefly describes the processing method of the combined type superalloy power inductor for the above hardware structure, including the following steps:
s1, processing the induction magnet, namely stirring the insulating powder, the adhesive, the lubricant and the curing agent in proportion, mixing and granulating to form induction magnet granules, molding the induction magnet granules through a mold, and sintering at high temperature to obtain the alloy magnetic cover 1 and the alloy center post 3.
At S1, the insulating powder includes any one or a combination of a plurality of iron-based powder, iron-silicon-chromium-based powder, iron-silicon-aluminum-based powder, amorphous powder, and nanocrystalline powder; the adhesive is any one or combination of more of silicone resin, in the embodiment, the adhesive is preferably high-temperature silicone resin; the lubricant comprises any one or more of stearic acid, aluminum stearate, magnesium stearate, calcium stearate and zinc stearate.
Further, S1 specifically includes the following operations:
s11, stirring the insulating powder, the adhesive, the lubricant and the curing agent in proportion, wherein the addition amount of the adhesive is 0.5-10%, and mixing and granulating to form an inductance magnet granule;
s12, arranging a processing die with the shape consistent with that of the part to be molded, and putting the inductance magnet particles into the processing die for internal molding to obtain semi-finished products of the alloy magnetic cover 1 and the alloy center post 3;
s13, placing the semi-finished products of the alloy magnetic cover 1 and the alloy center post 3 into a high-temperature sintering furnace, and sintering at the temperature of 700-1000 ℃; in the high-temperature sintering process, N is introduced into the high-temperature sintering furnace2And protecting to finally obtain the alloy magnetic cover 1 and the alloy center post 3.
It should be noted that, after the alloy magnetic shield 1 and the alloy center post 3 are processed by high-temperature sintering, not only the overall strength is more reliable, the stability of material performance is higher, and the alloy magnetic shield 1 and the alloy center post 3 can bear large current and high-temperature environment, but also after the high-temperature sintering, resin parts inside the alloy magnetic shield 1 and the alloy center post 3 are extracted, so that numerous compact gaps are formed inside the alloy magnetic shield 1 and the alloy center post 3, and these gaps can also function as air gaps, thereby realizing adjustment of the overall magnetic circuit and resistance of the inductor.
And S2, processing the inductor conductor, selecting a conductor base material, and obtaining the formed coil 2 after electroplating, cold press forming and bending forming.
In S2, the selection range of the conductor substrate includes any one or more of fesicrci, fesai, FeSi, FeNi, Mn — Zn, Ni — Zn, FeSiBCr, and Fe-based alloy.
And S3, combining and processing the inductor, namely coating glue on the inner wall of the coil accommodating groove 11, and splicing, bonding and combining the formed coil 2, the alloy center pillar 3 and the alloy magnetic cover 1 to obtain a power inductor finished product.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should take the description as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a modular superalloy power inductance, is formed by inductance magnet and inductance conductor bonding combination, its characterized in that: the inductance magnet comprises an alloy magnetic cover (1) and an alloy center post (3), and the inductance conductor is a forming coil (2); the alloy magnetic cover (1) is integrally formed and provided with a non-through coil accommodating groove (11) for accommodating the forming coil (2), and the alloy center pillar (3) penetrates through the coil center position of the forming coil (2), is integrated with the coil center position to form a whole and is jointly arranged in the coil accommodating groove (11).
2. The modular superalloy power inductor of claim 1, wherein: alloy magnetic shield (1) wholly is flat cubic structure, coil accomodate groove (11) set up in on the terminal surface of one side of alloy magnetic shield (1) circumference, groove (12) are drawn forth to the pin has all been seted up in both sides department that groove (11) notch position was accomodate to the coil.
3. The modular superalloy power inductor of claim 1, wherein: the equivalent number of turns of the forming coil (2) is 2.
4. The modular superalloy power inductor of claim 2, wherein: the forming coil (2) is formed by bending a special-shaped wire rod which is subjected to electroplating treatment; the special-shaped wire rod comprises two sections of coil utility sections which are equal in length and are arranged along the horizontal direction, the connection is realized at one end of each coil utility section through one coil connecting section, the other end of each coil utility section is connected with one section of coil pin section along the vertical direction, the two sections of the coil utility sections are not coaxial, the two ends of each coil connecting section are connected with one section of coil utility sections in a staggered manner, the width of each coil connecting section in the vertical direction is larger than the two sections of the sum of the width of each coil utility section in the vertical direction.
5. The modular superalloy power inductor of claim 4, wherein: under the forming state of forming coil (2), two sections coil utility sections buckle respectively and form two coil utility portions (21) the whole of coil utility portion (21) is rectangle ring structure, two sections coil pin section buckles respectively and forms two coil pin portions (22), two the coaxial setting in center of coil utility portion (21), the two constitutes jointly the coil central point of forming coil (2) puts.
6. The modular superalloy power inductor of claim 5, wherein: two parallel arrangement between coil utility portion (21), two mutual contactless, two clearance isolation between coil utility portion (21).
7. The modular superalloy power inductor of claim 6, wherein: the alloy center pillar (3) is integrally formed and is integrally a flat cube, and the shape and the size of the alloy center pillar (3) are in one-to-one matching correspondence with the shape and the size of the coil center position of the forming coil (2).
8. The modular superalloy power inductor of claim 7, wherein: in a combined state, the alloy center post (3) penetrates through the coil center position of the molding coil (2), the two coil center positions form a whole, and the two coil center positions are jointly bonded and fixedly arranged in the coil accommodating groove (11), at the moment, the two coil lead parts (22) are respectively embedded in the two lead leading-out grooves (12), and the outer end faces of the coil lead parts (22) are coplanar with the outer end face of the alloy magnetic cover (1).
9. The modular superalloy power inductor of claim 8, wherein: in the combined state, an air gap space exists between the forming coil (2) and the coil accommodating groove (11) and is isolated from the coil accommodating groove, and an air gap space exists between the forming coil (2) and the alloy center pillar (3) and is isolated from the alloy center pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937756.2U CN213988553U (en) | 2020-12-10 | 2020-12-10 | Combined high-temperature alloy power inductor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022937756.2U CN213988553U (en) | 2020-12-10 | 2020-12-10 | Combined high-temperature alloy power inductor |
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| CN213988553U true CN213988553U (en) | 2021-08-17 |
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| CN202022937756.2U Active CN213988553U (en) | 2020-12-10 | 2020-12-10 | Combined high-temperature alloy power inductor |
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