CN103730230A - Magnetic integrated inductor - Google Patents
Magnetic integrated inductor Download PDFInfo
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- CN103730230A CN103730230A CN201410025054.3A CN201410025054A CN103730230A CN 103730230 A CN103730230 A CN 103730230A CN 201410025054 A CN201410025054 A CN 201410025054A CN 103730230 A CN103730230 A CN 103730230A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F3/14—Constrictions; Gaps, e.g. air-gaps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/26—Fastening parts of the core together; Fastening or mounting the core on casing or support
- H01F27/263—Fastening parts of the core together
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/30—Fastening or clamping coils, windings, or parts thereof together; Fastening or mounting coils or windings on core, casing, or other support
- H01F27/306—Fastening or mounting coils or windings on core, casing or other support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/346—Preventing or reducing leakage fields
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0064—Magnetic structures combining different functions, e.g. storage, filtering or transformation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
- H02M3/1584—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel
- H02M3/1586—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load with a plurality of power processing stages connected in parallel switched with a phase shift, i.e. interleaved
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention relates to a magnetic integrated inductor. The magnetic integrated inductor comprises two magnetic cores and two coils which are assembled up and down relatively, wherein each magnetic core comprises a base plate, two first magnetic core columns and two second magnetic core columns; each two first magnetic core columns are positioned at the left and right sides of the base plate; each two second magnetic core columns are positioned at the middle parts of the upper and lower sides of the base plate; the base plate, each two first magnetic core columns and each two second magnetic core columns are integrally formed to form one magnetic core; after the two magnetic cores are assembled up and down relatively, one or more first air gaps are formed between the tops and bottoms of the first magnetic core columns on the same side; one or more second air gaps are formed between the tops and bottoms of the second magnetic core columns on the same side; the length sum of the first air gaps of the magnetic cores is less than that of the second air gaps; the two coils wind the opposite first magnetic core columns on left and right sides of the two magnetic cores respectively to form a left inductance coil and a right inductance coil; the directions of magnetic fields generated by the two inductance coils respectively during electrification excitation working are the same along upper and lower directions of the wound first magnetic core columns.
Description
Technical field
The present invention relates to inductor, relate in particular to a kind of magnetic integrated inductor.
Background technology
Pfc circuit in booster circuit, convertible frequency air-conditioner, UPS and other various high frequency switch powers of photovoltaic DC-to-AC converter, in order to improve the efficiency of power supply and to reduce costs, the circuit topology that has generally adopted two-way staggered (Interleave), wherein needs to use the energy-storage travelling wave tube of two identical separate inductor devices as circuit working.
Fig. 1 illustrates the circuit diagram of two-way interleaving PFC circuit of the prior art.Current waveform when Fig. 2 illustrates two inductor work in the magnetic integrated inductor in two-way interleaving PFC circuit of the prior art.
As can be seen from Figure 2, the current waveform i of inductor
l1and i
l2for triangular waveform, intermesh 180 ° and work, the Fluctuation of its ripple is: when S1 opens, L1 is forced shorted to earth by S1, the voltage being added on L1 is Vin, supposes that S1 ON time is Ton, the Current rise amplitude, ao i of L1
l1=(Vin/L1) * Ton.When S1 is closed, L1, due to the afterflow effect of energy storage, is forced diode D1 open-minded, suppose that D1 is ideal diode, now the electric current in inductor L1 declines because reverse voltage Vo-Vin causes electric discharge, the time remaining Toff that S1 closes, and the amplitude that now electric current declines is: Δ i
l1=[(Vo-Vin)/L1] * Toff.If the electric current in inductor now does not still stop, each work period moves in circles, and presents the trigonometric expression current waveform of right figure.
Visible, for the input and output voltage of certain Ton and Toff time and circuit, inductance value determined the to flow through electric current alternating component of inductance; Its flip-flop has reflected the power output of power supply.The lifting of inductance value, can reduce the fluctuation of electric current, the effective value of electric current is declined, improve coil loss, but for same magnetic core size, now the number of turn is more, because coil-winding area is constant, the conductor cross-section of single turn diminishes, thereby causes Coil resistance to increase, loss uprises, and the temperature rise of inductor is increased.
Fig. 3 illustrates the schematic diagram of the magnetic integrated inductor 300 in two-way interleaving PFC circuit of the prior art.Magnetic integrated inductor 300 comprises up and down two magnetic cores 310 and two coils 320 of assembling relatively.Each magnetic core comprises: base plate 312, be positioned at two the first core post 314 of the left and right sides on base plate 312 and be positioned at two the second core post 316 of the upper and lower sides center position on base plate.Wherein, base plate 312, two the first core post 314 and two each magnetic cores 310 of the one-body molded formation of the second core post 316.Two coils 320 respectively around in the first relative core post 314 of the left and right sides of two magnetic cores 310 to form two inductance coils in left and right, the magnetic direction that two inductance coils produce respectively when energising excited work is the equidirectional pointing to up and down along the first core post being wound the line.In the magnetic integrated inductor 300 of prior art, when two magnetic cores 310 are assembled up and down relatively, between the first relative core post 310 of two magnetic cores 310, be provided with air gap, between the second relative core post 320 of two magnetic cores 310, there is no air gap, and after two coil windings 320 are energized, the magnetic direction producing opposite direction respectively in the second core post 316.
Summary of the invention
For solving above-mentioned technical problem of the prior art, the present invention, by changing the structure of magnetic core and the polar orientation of winding in magnetic integrated inductor, provides a kind of brand-new magnetic integrated inductor.
According to an aspect of the present invention, provide a kind of magnetic integrated inductor, magnetic integrated inductor comprises up and down two magnetic cores and two coils of assembling relatively.Each magnetic core comprises: base plate; Be positioned at two the first core post of the left and right sides on base plate; With two the second core post that are positioned at the upper and lower sides center position on base plate.Wherein, base plate, two the first core post and two each magnetic cores of the one-body molded formation of the second core post.Two coils respectively around in the first relative core post of the left and right sides of two magnetic cores to form two inductance coils in left and right, the magnetic direction that two inductance coils produce respectively when energising excited work is the equidirectional pointing to up and down along the first core post being wound the line.After two magnetic cores are assembled up and down relatively, the first core post that is positioned at the same side is provided with one or more the first air gap between the upper and lower, the second core post that is positioned at the same side is provided with one or more interstice between the upper and lower, wherein, the length sum of each the first air gap of each magnetic core is less than the length sum of each interstice.
According to another aspect of the invention, each first air gap and each interstice form by air gap gasket is set, and air gap gasket is magnetic conduction insulating material not.
According to another aspect of the invention, each first air gap and each interstice form by external fixator fixed magnetic core.
According to another aspect of the invention, the length sum of each the first air gap is approximately below 1/5 of total length of the first core post.
According to another aspect of the invention, base plate is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides.
According to another aspect of the invention, two the first core post are respectively triangle core post.
According to another aspect of the invention, two the first core post up and down relatively and be connected and composition hourglass shape core post.
According to another aspect of the invention, the side of the close winding coil of two the first core post is that the circular-arc concave surface or the many ribs that parallel with winding coil are recessed.
According to another aspect of the invention, two the second core post are respectively any in following shape: cylinder, cylindroid or polygon prism.
According to another aspect of the invention, the material of magnetic core is Ferrite Material.
Should be appreciated that more than the present invention generality is described and the following detailed description is all exemplary and explanat, and be intended to the further explanation that the invention provides for as claimed in claim.
Accompanying drawing explanation
Comprise that accompanying drawing is for providing, the present invention further to be understood, they are included and form the application's a part, and accompanying drawing shows embodiments of the invention, and with together with this specification, play the effect of explaining the principle of the invention.In accompanying drawing:
Fig. 1 illustrates the circuit diagram of two-way interleaving PFC circuit of the prior art.
Current waveform when Fig. 2 illustrates two inductor work in the magnetic integrated inductor in two-way interleaving PFC circuit of the prior art.
Fig. 3 illustrates the schematic diagram of the magnetic integrated inductor in two-way interleaving PFC circuit of the prior art.
Fig. 4 illustrates according to the circuit diagram of two-way interleaving PFC circuit of the present invention.
Fig. 5 illustrates the current waveform while working according to two inductors in the magnetic integrated inductor in two-way interleaving PFC circuit of the present invention.
Fig. 6 (a) illustrates the stereogram of the magnetic core of magnetic integrated inductor according to an embodiment of the invention.
Fig. 6 (b) illustrates the vertical view of the magnetic core of magnetic integrated inductor according to an embodiment of the invention.
Fig. 6 (c) illustrates the end view of magnetic integrated inductor according to an embodiment of the invention.
Fig. 7 illustrates according to the vertical view of the magnetic core of the magnetic integrated inductor of further embodiment of this invention.
Fig. 8 illustrates the end view of magnetic integrated inductor according to yet another embodiment of the invention.
Embodiment
With detailed reference to accompanying drawing, embodiments of the invention are described now.
Fig. 4 illustrates according to the circuit diagram of two-way interleaving PFC circuit of the present invention.For not increasing umber of turn make the to flow through ripple of inductor, further diminish, can in foregoing invention, introduce mutually coupling composition mutually, utilize two windings to form certain transformer principle.Fig. 4 middle and upper part coil windings by excitation after, the magnetic flux producing in its core post, according to the size of magnetic resistance in magnetic circuit, shunted, flowed into respectively the core post of the lower coil of opposite side, and the middle core post that there is no winding, finally flow back in the magnetic core of upper coil winding; Otherwise, when after the coil electricity of bottom, also produce magnetic flux flow as a same reason, a part does not have the magnetic core equidirectional magnetic flux of winding to flow back to by centre, another part flows in the magnetic core of top winding conversely, is coupled out the output induced current that coil flows from left to right; And inductance in prior art (referring to Fig. 1), be equivalent to two incoherent inductance of independence, because the centre core post that do not wind the line does not have air gap, magnetic resistance is minimum, in the core post of the coil with winding, there is more considerable air gap, magnetic resistance is very big, and two coils can not form coupling effect, in addition its magnetic flux producing respectively opposite direction in middle core post.
Fig. 5 illustrates the current waveform while working according to two inductors in the magnetic integrated inductor in two-way interleaving PFC circuit of the present invention.At L2 winding, in electric discharge, occur in the process of electric current decline, when L1 is forced short circuit charging, the part in L1 magnetizes energy by transformer mechanism, produces a synchronous and L1 current increases in L2, continues to the current component rising; On the contrary, switch S 2 drives conducting, and when L2 is during by forced charge, the electric current of L1, except the component of the electric discharge that declines, also can produce an identical swelling current component that comes from L2 coupling, moves in circles successively.L1 as shown in Figure 5 and New type of current waveform iL1 ' and the iL2 ' of L2 have just been formed.Like this, when the current discharge of inductance coil declines, by introduce the stack of transformer induction ascending manner electric current from other windings, can significantly improve the speed that the electric current in inductor declines, thereby reduced the fluctuating range of its electric current, to reach, realize identical power conversion, the current ripples in coil is less, i.e. the less object of effective value electric current and peak current.
Fig. 6 (a) illustrates the stereogram of the magnetic core 610 of magnetic integrated inductor according to an embodiment of the invention.Magnetic core 610 comprises: base plate 612; Be positioned at two the first core post 614 of the left and right sides on base plate; With two the second core post 616 that are positioned at the upper and lower sides center position on base plate.Wherein, base plate 612, two the first core post 614 and two one-body molded formation magnetic cores 610 of the second core post 616.According to another aspect of the invention, the material of magnetic core 610 is Ferrite Material.
Fig. 6 (b) illustrates the vertical view of the magnetic core 610 of magnetic integrated inductor according to an embodiment of the invention.As shown in Figure 6 (b), base plate 612 is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides.Two the first core post 614 are respectively triangle core post.Two the second core post 616 are respectively any in following shape: cylinder, cylindroid or polygon prism.According to one embodiment of the invention, polygon prism is to be similar to cylinder or cylindroid polygon prism.According to one embodiment of the invention, the side 626 of the close winding coil (referring to Fig. 8) of two the first core post 614 is that the circular-arc concave surface or the many ribs that parallel with winding coil are recessed.Such layout can reduce magnetic core 610 quantity of material used and make the miniaturization of magnetic integrated inductor.
Fig. 6 (c) illustrates the end view of magnetic integrated inductor 600 according to an embodiment of the invention.Magnetic integrated inductor 600 comprises up and down two magnetic cores 610 and two coil (not shown)s of assembling relatively.Each magnetic core 610 comprises: base plate 612; Be positioned at two the first core post 614 of the left and right sides on base plate 612; With two the second core post 616 that are positioned at the upper and lower sides center position on base plate 612.Wherein, base plate 612, two the first core post 614 and two each magnetic cores 610 of the one-body molded formation of the second core post 626.Two coils 620 respectively around in the first relative core post 614 of the left and right sides of two magnetic cores 610 to form two inductance coils in left and right, the magnetic direction that two inductance coils produce respectively when energising excited work is the equidirectional pointing to up and down along the first core post 614 being wound the line.In the embodiment shown in Fig. 6 (c), after two magnetic cores 610 are assembled up and down relatively, the first core post 614 that is positioned at the same side is provided with first air gap 632 between the upper and lower, the second core post 616 that is positioned at the same side is provided with an air gap 634 between the upper and lower, wherein, the length d 1 of the first air gap 632 is less than the length d 2 of interstice 634, and now, monolateral inductance coil can be unsaturated.
According to one embodiment of the invention, the first air gap 632 and interstice 634 form by air gap gasket is set, and air gap gasket is magnetic conduction insulating material not.
According to another embodiment of the present invention, the first air gap 632 and interstice 634 form by external fixator fixed magnetic core 610.
According to one embodiment of the invention, the length of the first air gap 632 is approximately below 1/5 of the first core post 314 total lengths, more approaches at 1 o'clock, more can improve two coupling effects between winding.
Fig. 7 illustrates according to the vertical view of the magnetic core 710 of the magnetic integrated inductor of further embodiment of this invention.As shown in Figure 7, two the first core post 716 up and down relatively and be connected and composition hourglass shape core post.Other compositions of other compositions of magnetic core 710 shown in Fig. 7 and structure and the magnetic core 610 shown in Fig. 6 (c) and construct identically, do not repeat them here.
Fig. 8 illustrates the end view of magnetic integrated inductor 800 according to yet another embodiment of the invention.Magnetic integrated inductor 800 comprises up and down two magnetic cores 810 and two coils 820 of assembling relatively.Each magnetic core 810 comprises: base plate 812; Be positioned at two the first core post 814 of the left and right sides on base plate 812; With two the second core post 816 that are positioned at the upper and lower sides center position on base plate 812.Wherein, base plate 812, two the first core post 814 and two each magnetic cores 810 of the one-body molded formation of the second core post 828.Two coils 820 respectively around in the first relative core post 814 of the left and right sides of two magnetic cores 810 to form two inductance coils in left and right, the magnetic direction that two inductance coils produce respectively when energising excited work is the equidirectional pointing to up and down along the first core post 814 being wound the line.In the embodiment shown in fig. 8, after two magnetic cores 810 are assembled up and down relatively, the first core post 814 that is positioned at the same side is provided with multiple the first air gaps 832 between the upper and lower, and the second core post 816 that is positioned at the same side is provided with multiple air gaps 834 between the upper and lower.Wherein, the length sum of multiple the first air gaps 832 is less than the length sum of multiple interstices 834, and now, monolateral inductance coil can be unsaturated.
Although the quantity of the first air gap 832 shown in Fig. 8 is two, the quantity of interstice 834 is three, but those of ordinary skill in the art can understand, also can there be the first air gap 832 and the interstice 834 of other quantity, as long as meet the length sum that the length sum of multiple the first air gaps 832 is less than multiple interstices 834, all can realize technique effect of the present invention.Use multiple fine air gaps can also reduce the leakage magnetic field at air gap place.
According to one embodiment of the invention, multiple the first air gaps 832 and multiple interstice 834 form by air gap gasket is set, and air gap gasket is magnetic conduction insulating material not.
According to another embodiment of the present invention, multiple the first air gaps 832 and multiple interstice 834 form by external fixator fixed magnetic core 810.
According to one embodiment of the invention, the length sum of multiple the first air gaps 832 is approximately below 1/5 of the first core post 314 total lengths, more littlely more can improve two coupling effects between winding.
Those skilled in the art can be obvious, can carry out various modifications and variations and without departing from the spirit and scope of the present invention to above-mentioned exemplary embodiment of the present invention.Therefore, be intended to that the present invention is covered and drop within the scope of appended claims and equivalence techniques scheme thereof to modification of the present invention and modification.
Claims (10)
1. a magnetic integrated inductor, comprising:
Two magnetic cores relatively assembling up and down, each described magnetic core comprises:
Base plate,
Be positioned at two the first core post of the left and right sides on described base plate, and
Be positioned at two the second core post of the upper and lower sides center position on described base plate,
Wherein, described base plate, described two the first core post and described two each described magnetic cores of the one-body molded formation of the second core post; And
Two coils, two coils respectively around in the first relative core post of the left and right sides of two magnetic cores to form two inductance coils in left and right, the magnetic direction that described two inductance coils produce respectively when energising excited work is the equidirectional pointing to up and down along the first core post being wound the line
Wherein, after two magnetic cores are assembled up and down relatively, the first core post that is positioned at the same side is provided with one or more the first air gap between the upper and lower, and the second core post that is positioned at the same side is provided with one or more interstice between the upper and lower,
Wherein, described in each of each described magnetic core, the length sum of the first air gap is less than the length sum of interstice described in each.
2. magnetic integrated inductor as claimed in claim 1, is characterized in that, described in each, described in the first air gap and each, interstice forms by air gap gasket is set, and described air gap gasket is magnetic conduction insulating material not.
3. magnetic integrated inductor as claimed in claim 1, is characterized in that, described in each, described in the first air gap and each, interstice is fixed described magnetic core by external fixator and formed.
4. the magnetic integrated inductor as described in any one of claim 1-3, is characterized in that, described in each, the length sum of the first air gap is approximately below 1/5 of total length of described the first core post.
5. magnetic integrated inductor as claimed in claim 1, is characterized in that, described base plate is the parallel and symmetrical approximate hexagons up and down in upper and lower both sides.
6. magnetic integrated inductor as claimed in claim 1, is characterized in that, two described the first core post are respectively triangle core post.
7. magnetic integrated inductor as claimed in claim 1, is characterized in that, two described the first core post up and down relatively and be connected and composition hourglass shape core post.
8. the magnetic integrated inductor as described in claim 6 or 7, is characterized in that, the side of the close winding coil of two described the first core post is that the circular-arc concave surface or the many ribs that parallel with winding coil are recessed.
9. magnetic integrated inductor as claimed in claim 1, is characterized in that, two described the second core post are respectively any in following shape: cylinder, cylindroid or polygon prism.
10. magnetic integrated inductor as claimed in claim 1, is characterized in that, the material of described magnetic core is Ferrite Material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025054.3A CN103730230B (en) | 2014-01-20 | 2014-01-20 | Magnetic integrated inductor |
| PCT/CN2014/089965 WO2015106593A1 (en) | 2014-01-20 | 2014-10-31 | Magnetic integrated inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025054.3A CN103730230B (en) | 2014-01-20 | 2014-01-20 | Magnetic integrated inductor |
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| CN103730230A true CN103730230A (en) | 2014-04-16 |
| CN103730230B CN103730230B (en) | 2016-03-16 |
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| EP3136404A4 (en) * | 2014-05-27 | 2017-05-17 | Huawei Technologies Co. Ltd. | Coupling inductor and power converter |
| JP2018029124A (en) * | 2016-08-17 | 2018-02-22 | 住友電気工業株式会社 | Magnetic core, coil component, circuit board, and power supply |
| CN109741917A (en) * | 2019-03-06 | 2019-05-10 | 中国科学院重庆绿色智能技术研究院 | A kind of inductor of not wide air gap composition |
| WO2019105681A1 (en) * | 2017-11-28 | 2019-06-06 | Siemens Aktiengesellschaft | Winding assembly for at least two power-electronics converters that cycle at an offset, and converter assembly |
| CN109920626A (en) * | 2019-04-17 | 2019-06-21 | 中国科学院重庆绿色智能技术研究院 | A kind of inductor being made of multiple Length discrepancy air gap columns |
| CN112687458A (en) * | 2019-10-18 | 2021-04-20 | 联合汽车电子有限公司 | Multiphase staggered parallel integrated inductor and magnetic integrated circuit |
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| CN207052414U (en) | 2017-07-13 | 2018-02-27 | 台达电子企业管理（上海）有限公司 | The Switching Power Supply of magnetic element and the application magnetic element |
| DE102020127173B3 (en) * | 2020-10-15 | 2022-05-05 | Tdk Electronics Ag | Compact coupled inductor |
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| EP3136404A4 (en) * | 2014-05-27 | 2017-05-17 | Huawei Technologies Co. Ltd. | Coupling inductor and power converter |
| JP2018029124A (en) * | 2016-08-17 | 2018-02-22 | 住友電気工業株式会社 | Magnetic core, coil component, circuit board, and power supply |
| WO2019105681A1 (en) * | 2017-11-28 | 2019-06-06 | Siemens Aktiengesellschaft | Winding assembly for at least two power-electronics converters that cycle at an offset, and converter assembly |
| CN109741917A (en) * | 2019-03-06 | 2019-05-10 | 中国科学院重庆绿色智能技术研究院 | A kind of inductor of not wide air gap composition |
| CN109741917B (en) * | 2019-03-06 | 2020-12-18 | 中国科学院重庆绿色智能技术研究院 | Inductor that unequal width air gap is constituteed |
| CN109920626A (en) * | 2019-04-17 | 2019-06-21 | 中国科学院重庆绿色智能技术研究院 | A kind of inductor being made of multiple Length discrepancy air gap columns |
| CN109920626B (en) * | 2019-04-17 | 2021-04-16 | 中国科学院重庆绿色智能技术研究院 | Inductor composed of multiple unequal-length air gap stand columns |
| CN112687458A (en) * | 2019-10-18 | 2021-04-20 | 联合汽车电子有限公司 | Multiphase staggered parallel integrated inductor and magnetic integrated circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103730230B (en) | 2016-03-16 |
| WO2015106593A1 (en) | 2015-07-23 |
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