CN202758706U - Improved structure of inductor - Google Patents
Improved structure of inductor Download PDFInfo
- Publication number
- CN202758706U CN202758706U CN 201220320172 CN201220320172U CN202758706U CN 202758706 U CN202758706 U CN 202758706U CN 201220320172 CN201220320172 CN 201220320172 CN 201220320172 U CN201220320172 U CN 201220320172U CN 202758706 U CN202758706 U CN 202758706U
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- magnetic conductor
- inductor
- improved structure
- coiling group
- magnetic
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Abstract
The utility model relates to an improved structure of an inductor. The improved structure of the inductor comprises two iron cores and a winding group. Each iron core is provided with a first magnetizer. Two ends of each first magnetizer are respectively provided with a second magnetizer in extending mode. The second magnetizers are perpendicular to the first magnetizers and are respectively provided with end faces. The two iron cores are arranged in corresponding mode. Air gaps are formed between corresponding positions of the end faces. The winding group is wound on the first magnetizers of the two iron cores. Due to the fact that the winding group is directly wound on the iron cores, the manufacture of the inductor is more simplified, automatic production can be realized, the size of the inductor is reduced, and manufacturing cost is lowered. The winding group is far away from the air gaps of the iron cores so that the efficiency of the inductor is enabled to be better.
Description
Technical field
The relevant a kind of iron core of the utility model, espespecially a kind of core structure with linear change change inductance value.
Background technology
Inductor (Inductor) is called again coil (coil), is a kind of of passive component, has the electronic building brick of resisting any curent change, and it core by coil winding and forms, and core can be magnetic material or nonmagnetic substance.Inductor is to change by coil current, and produces magnetic flux change, and according to the assembly that the phenomenon in magnetic field is made, wherein the source in magnetic field is that electric charge is flowing, i.e. electric current.The electric current that exchanges can produce magnetic field, and the magnetic field of change can induce electric current, the ratio of its linear relationship, and we are called inductance.
Usually only have the plain conductor coiled, have self-induction action, with one with the upper conductor coiling, the mutual inductance effect then arranged.The function of inductor is the noise in the filter current, electric current in the stabilizing circuit, to prevent Electromagnetic Interference, effect is similar with capacitor, be equally store, stability that the electric energy in the release circuit is regulated electric current, only electric capacity is to come store electrical energy with the form of electric field (electric charge), and inductance is to reach with the form in magnetic field.
Can mutually change between electricity and the magnetic, can produce magnetic field around the wire that electric current flows through; Opposite, can generation current in the coil of cutting magnetic line.The structure of inductance is the coil that the wire coiled is close to each other, when electric current flows through, wherein can be full of magnetic energy, and when electric current diminished, the magnetic energy in the coil can produce one strength, stoped curent change.
Traditional inductor includes as shown in Figure 1: two iron core 10a, drum stand 20a and coiling group 30a that are the E font.This inductor is organized 30a with coiling and is wrapped on this drum stand 20a when making, the magnetic conductor 101a of the iron core 10a central authorities of two E fonts is passed drum stand 20a after, namely finish the making of inductor.Because this inductor is when making, coiling group 30a need to just can be wrapped in copper cash on the drum stand 20a with the coil winding machine of multiaxis, therefore can't allow coil winding machine carry out automated production.And with copper cash be wrapped in this drum stand 20a again with this two iron core 10a assembling, can cause the inductor volume large, the cost of inductor is increased.
In addition, also has a kind of ring-shaped inductors, this ring-shaped inductors has annular core and is wrapped in coiling group on this annular core, because the iron core that this ring-shaped inductors uses is annular, when twining the coiling group, can't be placed on automatic winding production on the general automatic winding machine, also must use the manual type coiling, cause the trouble in the making.
Because after above-mentioned two kinds of inductors assembling, be wrapped on the air gap that coiling group 30a on the drum stand 20a is positioned at these two iron core 10a or the coiling group of ring-shaped inductors directly is wrapped on the air gap of this annular core, when air gap generation leakage field phenomenon, will have influence on the electric current that flows through on the coiling group, make the usefulness variation of inductor.
The utility model content
In view of this, main purpose of the present utility model is to solve traditional shortcoming, allows the making of inductor more simplify, can automatic winding production on coil winding machine, and make the volume-diminished of inductor and reduce cost of manufacture.
In view of this, another purpose of the present utility model is to make this coiling group away from the air gap of iron core, makes inductor usefulness better.
In view of this, an again purpose of the present utility model is can linear change to adjust the inductance value of inductor, makes inductor usefulness better, can prevent that the leakage field phenomenon from producing and avoid inductor to cross cause thermal damage.
For achieving the above object, the utility model provides a kind of inductor improved structure, this inductor improved structure comprises: two iron cores, respectively this iron core has the first magnetic conductor, respectively these the first magnetic conductor two ends respectively are extended with the second magnetic conductor, and respectively this second magnetic conductor is mutually vertical with described the first magnetic conductor, and have respectively end face, wherein said two iron core correspondences are set up, and are formed with air gap between the corresponding placement of described end face; The coiling group is wound on described two first magnetic conductors of described two iron cores, has input and output on this coiling group.
Wherein, described the first magnetic conductor and described the second magnetic conductor are square, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
Wherein, respectively has groove on described the second magnetic conductor.
Wherein, described groove is stepped.
Wherein, described the first magnetic conductor and described the second magnetic conductor are circular, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
Wherein, respectively has groove on described the second magnetic conductor.
Wherein, described groove is stepped.
For achieving the above object, the utility model provides another kind of inductor improved structure, this inductor improved structure comprises: two iron cores, respectively this iron core has the first magnetic conductor, respectively these the first magnetic conductor two ends respectively are extended with the second magnetic conductor, and respectively this second magnetic conductor is mutually vertical with described the first magnetic conductor, and have respectively end face, wherein said two iron core correspondences are set up, and are formed with air gap between the corresponding placement of described end face; The coiling group comprises: the first coiling group on the first magnetic conductor that is wrapped in one of them described iron core, has input and output on this first coiling group; The second coiling group on the first magnetic conductor that is wrapped in another described iron core, has input and output on this second coiling group.
Wherein, described the first magnetic conductor and described the second magnetic conductor are square, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
Wherein, respectively has groove on described the second magnetic conductor.
Wherein, described groove is stepped.
Wherein, described the first magnetic conductor and described the second magnetic conductor are circular, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
Wherein, respectively has groove on described the second magnetic conductor.
Wherein, described groove is stepped.
Compared to prior art, the utility model directly is wound in the coiling group on the iron core, removes processing and the making of drum stand, allows the making of inductor more simplify, can automatic winding production on coil winding machine, and make the volume-diminished of inductor and reduce cost of manufacture; In addition, the utility model directly is wound in the coiling group on the described iron core, makes this coiling group away from the air gap of iron core, makes inductor usefulness better; In addition, the utility model increases the air gap with linear change at iron core, can linear change adjusts the inductance value of inductor, makes inductor usefulness better, can prevent that the leakage field phenomenon from producing and avoid inductor to cross cause thermal damage.
Description of drawings
Fig. 1 is the decomposing schematic representation of traditional inductor structure;
Fig. 2 is the decomposing schematic representation of the first inductor structure of the present utility model;
Fig. 3 is the combination schematic diagram of the inductor structure of Fig. 2;
Fig. 4 is that the master of the inductor structure of Fig. 2 looks schematic diagram;
Fig. 5 is that the master of the second inductor structure of the present utility model looks schematic diagram;
Fig. 6 A to Fig. 6 C is that the air gap of another embodiment of two iron cores of the present utility model changes schematic diagram;
Fig. 7 is inductance value linear change curve synoptic diagram of the present utility model;
Fig. 8 is the again schematic diagram of an embodiment of the present utility model.
Description of reference numerals
Iron core 10a magnetic conductor 101a
Iron core 1 first magnetic conductor 11
The first magnetic conductor 41 free ends 42
The second magnetic conductor 43 end faces 431
5 first coiling groups 51 are organized in coiling
52 inputs 511,521 are organized in the second coiling
Output 512,522 air gaps 6
Groove 7 treads 71
Riser 72 air gaps 73,73a, 73b, 73c
The magnetic line of force 8
Embodiment
Relevant the technical content and a detailed description of the present utility model will cooperate description of drawings as follows, yet appended accompanying drawing purposes as an illustration only is not for limitation the utility model.
See also Fig. 2, be the decomposing schematic representation of the first inductor structure of the present utility model.As shown in the figure: inductor structure of the present utility model comprises two iron cores 1 and coiling group 2.
These two iron cores 1 are the U font, respectively have the first magnetic conductor 11 on these two iron cores 1, and this first magnetic conductor 11 has two free ends 12, and these two free ends 12 are extended with respectively the second magnetic conductor 13, and this second magnetic conductor 13 is mutually vertical with this first magnetic conductor 11.In this figure, this first magnetic conductor 11 and this second magnetic conductor 13 are square, and the surface be even surface so that on coil winding machine automatic winding.
This coiling group 2 is copper enamelled wire, on respectively this first magnetic conductor 11 that is wrapped in these two iron cores 1.
See also Fig. 3 and Fig. 4, be respectively combination and the main schematic diagram of looking of the inductor structure of Fig. 2.As shown in the figure: inductor structure of the present utility model is when making, first two iron cores 1 are placed on the coil winding machine (not shown), make each two end face 131 of respectively this second magnetic conductor 13 of two iron cores 1 form corresponding configuration, and form air gap 3 between two end faces 131.
After two iron cores 1 are fixed on coil winding machine, with copper enamelled wire directly on the first magnetic conductor 11 of first this iron core 1, after the first magnetic conductor 11 windings of first this iron core 1 are finished, after this enamelled wire was pulled to and twines on the first magnetic conductor 11 of second this iron core 1, formed coiling group 2 was positioned on these two the first magnetic conductors 11 after this enamelled wire twined.And have input 21 and output 22 on the coiling group 2 after twining, form filter inductor.
Because above-mentioned inductor structure is that coiling group 2 directly is wrapped on the iron core 1, can save tradition the coiling group is wrapped in first procedure on drum stand (bobbin) frame, can reduce cost of manufacture simultaneously, make the volume-diminished of inductor structure.And, this coiling group 2 directly is wrapped on the first magnetic conductor 11 of iron core 1, make this coiling group 2 away from air gap 3, when the leakage field phenomenon occured air gap 3, this leakage field can not have influence on the electric current on the coiling group 2, and the usefulness of inductor structure can not reduced.
See also Fig. 5, for the master of the second inductor structure of the present utility model looks schematic diagram.As shown in the figure: inductor structure of the present utility model comprises two iron cores 4 and coiling group 5.
These two iron cores 4 are the U font, respectively have the first magnetic conductor 41 on these two iron cores 4, and this first magnetic conductor 41 has two free ends 42, and these two free ends 42 respectively are extended with the second magnetic conductor 43, and this second magnetic conductor 43 is mutually vertical with this first magnetic conductor 41.In this figure, this first magnetic conductor 41 and this second magnetic conductor 43 are square or circular, and the surface be even surface so that on coil winding machine automatic winding.
This coiling group 5 is copper enamelled wire, have the first coiling group 51 and the second coiling group 52, this the first coiling group 51 is wrapped on this first magnetic conductor 41, this the second coiling group 52 is wrapped on another this first magnetic conductor 41, and this coiling group 5 also has two inputs 511,521 and two outputs 512,522.
This inductor structure is placed on two iron cores 4 on the coil winding machine (not shown) first when making, and makes each two end face 431 of respectively this second magnetic conductor 43 of two iron cores 4 form corresponding configuration, and forms air gap 6 between two end faces 431.
After these two iron cores 4 are fixed on coil winding machine, with copper enamelled wire directly on the first magnetic conductor 41 of first this iron core 4, the first magnetic conductor 41 of first this iron core 4 twine finish after, form the first coiling group 51 that is positioned on this first magnetic conductor 41.Carry out again the winding of the second coiling group 52 of the first magnetic conductor 41 of second this iron core 4.Coiling group 5 after winding has two inputs 511,521 and two outputs 512,522, to form the common mode filtering inductor.
Because being the first coiling group 51 and the second coiling group 52 with this coiling group 5, above-mentioned common mode filtering inductor structure directly is wrapped on these two iron cores 4, can save tradition the coiling group is wrapped in first procedure on drum stand (bobbin) frame, simultaneously can reduce cost of manufacture, make the volume-diminished of inductor structure.And, on respectively this first magnetic conductor 41 that the first coiling group 51 and the second coiling group 52 of this coiling group 5 directly is wrapped in two iron cores 4, make the first coiling group 51 of this coiling group 5 and the second coiling group 52 away from this air gap 6, when the leakage field phenomenon occurs in this air gap 6, this leakage field can not have influence on the first coiling group 51 of this coiling group 5 and the electric current on the second coiling group 52, and the usefulness of inductor structure can not reduced.
See also Fig. 6 A to Fig. 6 C, for the air gap of another embodiment of two iron cores of the present utility model changes schematic diagram, see also simultaneously Fig. 7, be inductance value linear change curve synoptic diagram of the present utility model.As shown in the figure: at first, respectively have groove 7 on two end faces of these two the second magnetic conductors 13, this groove 7 is stepped or the V font, the utility model with stepped for example, but be not confined to stepped on.This stair-stepping groove 7 is comprised of successional tread 71 and riser 72 more than two, be formed with the air gap 73 of different spacing between two above treads 71 on respectively this groove 7 of these two the second magnetic conductors 13, this air gap 73 allows inductor structure adjust inductance value with linear mode along with the consumed power of load.
When two iron cores 1 put coiling group 2 (such as Fig. 2) utilization, after the energising of coiling group, when the consumed power of the load that inductor structure connects is underloading, the magnetic circuit that the magnetic line of force 8 is walked can by the first group less air gap 73a that forms between two treads 71 of first group in this groove 7 come by, the inductance value of the inductor structure that relatively also makes is higher.
Consumed power increase when load, and after this air gap 73a magnetic saturation of first group, the magnetic circuit of this magnetic line of force 8 will change by formed second group air gap 73b between two treads 71 of second group and pass through, at this moment, also thereupon decline (such as the A position of Fig. 7) of the inductance value of this inductor structure.
When the consumed power of load increases (heavy duty) again again, and after second group air gap 73b magnetic saturation, the magnetic circuit of this magnetic line of force 8 will change by air gap 73c formed the 3rd group between the 3rd group the tread 71 and pass through, at this moment, the inductance value of this inductor structure again descend (such as the B position of Fig. 7).
Hence one can see that, be formed with the air gap 73 of different spacing between two above treads 71 on the groove 7 of the stepped end face of these two the second magnetic conductors 13, when this air gap 73 increases gradually in load (not shown) institute consumed power, mode that can linear change is adjusted the inductance value size of inductor structure, make the usefulness of inductor structure better, and inductor structure can be not overheated yet.
See also Fig. 8, be the again schematic diagram of an embodiment of the present utility model.As shown in the figure: the groove 7 of the second magnetic conductor 13 of iron core 1 of the present utility model except be square stepped, respectively this groove 7 of this second magnetic conductor 13 can also be stepped for circle.Therefore, when the groove 7 of two stepped end faces of circle is corresponding, two above treads 71 on the groove 7 of these two stepped end faces also form the air gap 73 of different spacing, this air gap 73 is along with load (not shown) institute consumed power increases gradually, mode that can linear change is adjusted the inductance value size of inductor structure, makes the usefulness of inductor structure better.
The above is specifying of preferred embodiment of the present utility model only, is not to limit to protection range of the present utility model, and other any equivalent transformation all should belong to the application's claim scope.
Claims (14)
1. an inductor improved structure is characterized in that, this inductor improved structure comprises:
Two iron cores, respectively this iron core has the first magnetic conductor, respectively these the first magnetic conductor two ends respectively are extended with the second magnetic conductor, respectively this second magnetic conductor is mutually vertical with described the first magnetic conductor, and has respectively end face, wherein said two iron core correspondences are set up, and are formed with air gap between the corresponding placement of described end face;
The coiling group is wrapped on described two first magnetic conductors of described two iron cores, has input and output on this coiling group.
2. inductor improved structure as claimed in claim 1 is characterized in that, described the first magnetic conductor and described the second magnetic conductor are square, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
3. inductor improved structure as claimed in claim 2 is characterized in that, respectively has groove on described the second magnetic conductor.
4. inductor improved structure as claimed in claim 3 is characterized in that, described groove is stepped.
5. inductor improved structure as claimed in claim 1 is characterized in that, described the first magnetic conductor and described the second magnetic conductor are circular, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
6. inductor improved structure as claimed in claim 5 is characterized in that, respectively has groove on described the second magnetic conductor.
7. inductor improved structure as claimed in claim 6 is characterized in that, described groove is stepped.
8. an inductor improved structure is characterized in that, this inductor improved structure comprises:
Two iron cores, respectively this iron core has the first magnetic conductor, respectively these the first magnetic conductor two ends respectively are extended with the second magnetic conductor, respectively this second magnetic conductor is mutually vertical with described the first magnetic conductor, and has respectively end face, wherein said two iron core correspondences are set up, and are formed with air gap between the corresponding placement of described end face;
The coiling group comprises:
The first coiling group on the first magnetic conductor that is wrapped in one of them described iron core, has input and output on this first coiling group;
The second coiling group on the first magnetic conductor that is wrapped in another described iron core, has input and output on this second coiling group.
9. inductor improved structure as claimed in claim 8 is characterized in that, described the first magnetic conductor and described the second magnetic conductor are square, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
10. inductor improved structure as claimed in claim 9 is characterized in that, respectively has groove on described the second magnetic conductor.
11. inductor improved structure as claimed in claim 10 is characterized in that, described groove is stepped.
12. inductor improved structure as claimed in claim 8 is characterized in that, described the first magnetic conductor and described the second magnetic conductor are circular, and the surface of described the first magnetic conductor and described the second magnetic conductor is even surface.
13. inductor improved structure as claimed in claim 12 is characterized in that, respectively has groove on described the second magnetic conductor.
14. inductor improved structure as claimed in claim 13 is characterized in that, described groove is stepped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320172 CN202758706U (en) | 2012-07-03 | 2012-07-03 | Improved structure of inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220320172 CN202758706U (en) | 2012-07-03 | 2012-07-03 | Improved structure of inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202758706U true CN202758706U (en) | 2013-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220320172 Expired - Fee Related CN202758706U (en) | 2012-07-03 | 2012-07-03 | Improved structure of inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202758706U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768068A (en) * | 2017-10-30 | 2018-03-06 | 东莞市大忠电子有限公司 | A kind of efficient integrated inductor |
-
2012
- 2012-07-03 CN CN 201220320172 patent/CN202758706U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107768068A (en) * | 2017-10-30 | 2018-03-06 | 东莞市大忠电子有限公司 | A kind of efficient integrated inductor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150703 |
|
| EXPY | Termination of patent right or utility model |