CN103730230B - Magnetic integrated inductor - Google Patents
Magnetic integrated inductor Download PDFInfo
- Publication number
- CN103730230B CN103730230B CN201410025054.3A CN201410025054A CN103730230B CN 103730230 B CN103730230 B CN 103730230B CN 201410025054 A CN201410025054 A CN 201410025054A CN 103730230 B CN103730230 B CN 103730230B
- Authority
- CN
- China
- Prior art keywords
- magnetic
- core post
- core
- integrated inductor
- air gap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The present invention relates to a kind of magnetic integrated inductor, comprising: two magnetic cores of upper and lower relative makeup and two coils.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 of the upper and lower sides center position be positioned 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.After two upper and lower relative makeup of magnetic core, the first core post being positioned at the same side is provided with one or more the first air gap between the upper and lower, the second core post being 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.Two coils respectively 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 being energized excited work is along by the equidirectional pointed to up and down of the first core post of coiling.
Description
Technical field
The present invention relates to inductor, particularly relate to a kind of magnetic integrated inductor.
Background technology
Pfc circuit in the booster circuit of photovoltaic DC-to-AC converter, convertible frequency air-conditioner, UPS and other various high frequency switch powers, in order to improve the efficiency of power supply and reduce costs, generally have employed the circuit topology of two-way staggered (Interleave), wherein need use two identical separate inductor as the energy-storage travelling wave tube of circuit working.
Fig. 1 illustrates the circuit diagram of two-way interleaving PFC circuit of the prior art.Fig. 2 illustrates current waveform during 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, and the voltage be added on L1 is Vin, assuming that S1 ON time is Ton, then and the electric current ascensional range Δ i of L1
l1=(Vin/L1) * Ton.When S1 is closed, L1, due to the afterflow effect of energy storage, makes diode D1 be forced open-minded, assuming that D1 is ideal diode, electric current then now in inductor L1 causes electric discharge to decline because of reverse voltage Vo-Vin, 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, then 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 determines the electric current alternating component flowing through inductance; Its flip-flop has then reflected the power output of power supply.The lifting of inductance value, the fluctuation of electric current can be reduced, the effective value of electric current is declined, improves 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, thus 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 two magnetic cores 310 and two coils 320 of upper and lower relative makeup.Each magnetic core comprises: two the first core post 314 of base plate 312, the left and right sides be positioned 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 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 being energized excited work is along by the equidirectional pointed to up and down of the first core post of coiling.In the magnetic integrated inductor 300 of prior art, during two magnetic core about 310 relative makeup, air gap is provided with between the first relative core post 310 of two magnetic cores 310, air gap is not had between the second relative core post 320 of two magnetic cores 310, and after two coil windings 320 are energized, direction is contrary respectively in the second core post 316 for the magnetic direction produced.
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 two magnetic cores and two coils of upper and lower relative makeup.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 of the upper and lower sides center position be positioned 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 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 being energized excited work is along by the equidirectional pointed to up and down of the first core post of coiling.After two upper and lower relative makeup of magnetic core, the first core post being positioned at the same side is provided with one or more the first air gap between the upper and lower, the second core post being 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 are formed by arranging air gap gasket, and air gap gasket is not magnetic conduction insulating material.
According to another aspect of the invention, each first air gap and each interstice are formed by external fixator fixed magnetic core.
According to another aspect of the invention, the length sum of each the first air gap is approximately less than 1/5 of the total length of the first core post.
According to another aspect of the invention, base plate is the parallel and symmetrical up and down approximate hexagons 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 form 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 arc-shaped concave surface that parallels with winding coil or many ribs are recessed.
According to another aspect of the invention, two the second core post are any one in following shape respectively: 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 describe and the following detailed description be all exemplary and explanat, and be intended to for as claimed in claim the invention provides further explanation.
Accompanying drawing explanation
Comprising accompanying drawing is further understand the present invention for providing, and they are included and form a application's part, and accompanying drawing shows embodiments of the invention, and plays the effect explaining the principle of the invention together with this specification.In accompanying drawing:
Fig. 1 illustrates the circuit diagram of two-way interleaving PFC circuit of the prior art.
Fig. 2 illustrates current waveform during 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 the circuit diagram according to two-way interleaving PFC circuit of the present invention.
Fig. 5 illustrates current waveform when 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 the vertical view of the magnetic core of the magnetic integrated inductor according to 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 the circuit diagram according to two-way interleaving PFC circuit of the present invention.For not increasing umber of turn, the ripple flowing through inductor being diminished further, the composition that is coupled mutually can be introduced mutually in the present invention as stated above, utilizing two windings to form certain transformer principle.After Fig. 4 middle and upper part coil windings is excited, the magnetic flux produced in its core post, according to the size of magnetic resistance in magnetic circuit, shunted, flowed into the core post of the lower coil of opposite side respectively, and centre does not have the core post of winding, finally flow back in the magnetic core of upper coil winding; Otherwise, when after the coil electricity of bottom, 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 middle yet, 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 the inductance in prior art (see Fig. 1), be equivalent to two incoherent inductance of independence, because centre not coiling core post does not have air gap, magnetic resistance is minimum, 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, and its magnetic flux produced respectively direction in middle core post is contrary in addition.
Fig. 5 illustrates current waveform when working according to two inductors in the magnetic integrated inductor in two-way interleaving PFC circuit of the present invention.Being in electric discharge at L2 winding occurs in the process that electric current declines, and when L1 is forced short circuit charging, the part in L1 magnetizes energy by transformer mechanism, produces a synchronous and L1 electric current and increases, continue the current component to rising in L2; On the contrary, switch S 2 drives conducting, and when L2 is forced charging, the electric current of L1, except declining except the component of electric discharge, also can produce an identical swelling current component coming from L2 coupling, move in circles successively.Just define the New type of current waveform i of L1 and L2 as shown in Figure 5
l1' and i
l2'.Like this, when the current discharge of inductance coil declines, by introducing the superposition of transformer induction ascending manner electric current from other windings, significantly can improve the speed that the electric current in inductor declines, thus reduce the fluctuating range of its electric current, realize identical power conversion to reach, the current ripples in coil is less, i.e. effective value electric current and the less object of 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 of the upper and lower sides center position be positioned 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 Fig. 6 (b), base plate 612 is the parallel and symmetrical up and down approximate hexagons in upper and lower both sides.Two the first core post 614 are respectively triangle core post.Two the second core post 616 are any one in following shape respectively: cylinder, cylindroid or polygon prism.According to one embodiment of the invention, polygon prism is similar to cylinder or cylindroid polygon prism.According to one embodiment of the invention, the side 626 of the close winding coil (see Fig. 8) of two the first core post 614 is that the arc-shaped concave surface that parallels with winding coil or many ribs are recessed.Such layout can reduce magnetic core 610 quantity of material used and make magnetic integrated inductor miniaturized.
Fig. 6 (c) illustrates the end view of magnetic integrated inductor 600 according to an embodiment of the invention.Magnetic integrated inductor 600 comprises two magnetic cores 610 and two coil (not shown)s of upper and lower relative makeup.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 of the upper and lower sides center position be positioned 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 respectively 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 being energized excited work is along by the equidirectional pointed to up and down of the first core post 614 of coiling.In the embodiment shown in Fig. 6 (c), after two magnetic core about 610 relative makeup, the first core post 614 being positioned at the same side is provided with first air gap 632 between the upper and lower, the second core post 616 being positioned at the same side is provided with an air gap 634 between the upper and lower, wherein, the length d1 of the first air gap 632 is less than the length d2 of interstice 634, and now, monolateral inductance coil can not be saturated.
According to one embodiment of the invention, the first air gap 632 and interstice 634 are formed by arranging air gap gasket, and air gap gasket is not magnetic conduction insulating material.
According to another embodiment of the present invention, the first air gap 632 and interstice 634 are formed by external fixator fixed magnetic core 610.
According to one embodiment of the invention, the length of the first air gap 632 is approximately less than 1/5 of the first core post 314 total length, more close to zero time, more can improve the coupling effect between two windings.
Fig. 7 illustrates the vertical view of the magnetic core 710 of the magnetic integrated inductor according to further embodiment of this invention.As shown in Figure 7, two the first core post about 716 relatively and be connected and form hourglass shape core post.Other compositions of magnetic core 710 shown in Fig. 7 and structure form with other of the magnetic core 610 shown in Fig. 6 (c) and construct identical, 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 two magnetic cores 810 and two coils 820 of upper and lower relative makeup.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 of the upper and lower sides center position be positioned 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 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 being energized excited work is along by the equidirectional pointed to up and down of the first core post 814 of coiling.In the embodiment shown in fig. 8, after two magnetic core about 810 relative makeup, the first core post 814 being positioned at the same side is provided with multiple first air gap 832 between the upper and lower, and the second core post 816 being positioned at the same side is provided with multiple air gap 834 between the upper and lower.Wherein, the length sum of multiple first air gap 832 is less than the length sum of multiple interstice 834, and now, monolateral inductance coil can not be saturated.
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 the length sum that the length sum meeting multiple first air gap 832 is less than multiple interstice 834 the first air gap 832 and the interstice 834 of other quantity can be had, as long as all can realize technique effect of the present invention.Use multiple fine air gap can also reduce the leakage magnetic field at air gap place.
According to one embodiment of the invention, multiple first air gap 832 and multiple interstice 834 are formed by arranging air gap gasket, and air gap gasket is not magnetic conduction insulating material.
According to another embodiment of the present invention, multiple first air gap 832 and multiple interstice 834 are formed by external fixator fixed magnetic core 810.
According to one embodiment of the invention, the length sum of multiple first air gap 832 is approximately less than 1/5 of the first core post 314 total length, the more little coupling effect that more can improve between two windings.
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 equivalent arrangements thereof to amendment of the present invention and modification.
Claims (10)
1. a magnetic integrated inductor, comprising:
Two magnetic cores of upper and lower relative makeup, 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 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 being energized excited work is that edge is by the equidirectional pointed to up and down of the first core post of coiling
Wherein, after two upper and lower relative makeup of magnetic core, the first core post being 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 being 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, the first air gap described in each and interstice described in each are formed by arranging air gap gasket, and described air gap gasket is not magnetic conduction insulating material.
3. magnetic integrated inductor as claimed in claim 1, is characterized in that, the first air gap described in each and interstice described in each are 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, the length sum of the first air gap described in each is less than 1/5 of the total length of described first core post.
5. magnetic integrated inductor as claimed in claim 1, is characterized in that, described base plate is the parallel and symmetrical up and down hexagons in upper and lower both sides.
6. magnetic integrated inductor as claimed in claim 1, it is characterized in that, two described first core post are respectively triangle core post.
7. magnetic integrated inductor as claimed in claim 1, is characterized in that, two described first core post up and down relatively and be connected and form hourglass shape core post.
8. magnetic integrated inductor as claimed in claims 6 or 7, is characterized in that, the side of the close winding coil of two described first core post is that the arc-shaped concave surface that parallels with winding coil or many ribs are recessed.
9. magnetic integrated inductor as claimed in claim 1, is characterized in that, two described second core post are any one in following shape respectively: cylinder, cylindroid or polygon prism.
10. magnetic integrated inductor as claimed in claim 1, it 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103730230A CN103730230A (en) | 2014-04-16 |
| CN103730230B true CN103730230B (en) | 2016-03-16 |
Family
ID=50454264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410025054.3A Active CN103730230B (en) | 2014-01-20 | 2014-01-20 | Magnetic integrated inductor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103730230B (en) |
| WO (1) | WO2015106593A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104021920B (en) * | 2014-05-27 | 2016-09-28 | 华为技术有限公司 | Coupling inductance and power inverter |
| JP6697682B2 (en) * | 2016-08-17 | 2020-05-27 | 住友電気工業株式会社 | Magnetic core, coil component, circuit board, and power supply device |
| 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 |
| DE102017221267A1 (en) * | 2017-11-28 | 2019-05-29 | Siemens Aktiengesellschaft | Winding arrangement for at least two offset clocking power electronic transducer and transducer assembly |
| 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 |
| 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 |
| DE102020127173B3 (en) * | 2020-10-15 | 2022-05-05 | Tdk Electronics Ag | Compact coupled inductor |
| CN115602424A (en) * | 2021-07-07 | 2023-01-13 | 中兴通讯股份有限公司（Cn） | Inductor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217761A (en) * | 1992-01-31 | 1993-08-27 | Sony Corp | Magnetic core with gap and inductance element |
| CN101499364A (en) * | 2008-10-20 | 2009-08-05 | 天通浙江精电科技有限公司 | Magnetic core and integrated electrical inductance |
| CN101552098A (en) * | 2008-12-26 | 2009-10-07 | 上海力申科学仪器有限公司 | Transformer for improving the precision of output voltage |
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| CN202601363U (en) * | 2012-05-26 | 2012-12-12 | 南安市南磁电子有限公司 | UUI type integrated inductor |
-
2014
- 2014-01-20 CN CN201410025054.3A patent/CN103730230B/en active Active
- 2014-10-31 WO PCT/CN2014/089965 patent/WO2015106593A1/en active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05217761A (en) * | 1992-01-31 | 1993-08-27 | Sony Corp | Magnetic core with gap and inductance element |
| CN101499364A (en) * | 2008-10-20 | 2009-08-05 | 天通浙江精电科技有限公司 | Magnetic core and integrated electrical inductance |
| CN101552098A (en) * | 2008-12-26 | 2009-10-07 | 上海力申科学仪器有限公司 | Transformer for improving the precision of output voltage |
| CN102709026A (en) * | 2012-02-01 | 2012-10-03 | 鸿康磁业电子（昆山）有限公司 | Improved inductor |
| CN202601363U (en) * | 2012-05-26 | 2012-12-12 | 南安市南磁电子有限公司 | UUI type integrated inductor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103730230A (en) | 2014-04-16 |
| WO2015106593A1 (en) | 2015-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103730230B (en) | Magnetic integrated inductor | |
| KR101241564B1 (en) | Couple inductor, Couple transformer and Couple inductor-transformer | |
| JP6098870B2 (en) | Reactor, converter, and power converter | |
| CN206962702U (en) | Multiphase DC/DC power supply changeover devices | |
| US11482938B2 (en) | Isolated resonant converter | |
| Ouyang et al. | Planar-integrated magnetics (PIM) module in hybrid bidirectional DC–DC converter for fuel cell application | |
| JP4546439B2 (en) | Magnetic circuit of 2-transform DCDC converter | |
| JP4800451B1 (en) | High frequency transformer | |
| US9455084B2 (en) | Variable core electromagnetic device | |
| CN103782355A (en) | Integrated magnetic component | |
| Mu et al. | Design of integrated transformer and inductor for high frequency dual active bridge GaN Charger for PHEV | |
| CN112771777B (en) | Apparatus for conversion between AC power and DC power | |
| CN108648899A (en) | A kind of magnetic integrated device, converter, circuit of power factor correction and method | |
| CN105518810A (en) | Integrated magnetic assemblies and methods of assembling same | |
| US20140203901A1 (en) | Reactor and electrical device | |
| Taraborrelli et al. | Bidirectional dual active bridge converter using a tap changer for extended voltage ranges | |
| CN104022632B (en) | Input zero ripple converter | |
| CN204271918U (en) | A kind of LLC circuit | |
| CN210724332U (en) | Multi-load wireless charging device | |
| Loef et al. | On high frequency high voltage generators with planar transformers | |
| Ouyang et al. | Low profile, low cost, new geometry integrated inductors | |
| CN103594237B (en) | A kind of 18 pulse phase shifting rectifier transformers | |
| CN109617406A (en) | A kind of coupling multiphase DC-DC converter | |
| CN108666067A (en) | A kind of high efficiency integrated form LLC resonance transformers | |
| CN209357573U (en) | The inductance balance magnetic core and three-phase reactor of three-phase reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |