CN106057395A - Permanent magnet biased magnetic element assembly and method for implementing same - Google Patents
Permanent magnet biased magnetic element assembly and method for implementing same Download PDFInfo
- Publication number
- CN106057395A CN106057395A CN201610668052.5A CN201610668052A CN106057395A CN 106057395 A CN106057395 A CN 106057395A CN 201610668052 A CN201610668052 A CN 201610668052A CN 106057395 A CN106057395 A CN 106057395A
- Authority
- CN
- China
- Prior art keywords
- magnetic
- group
- magnetic circuit
- permanent magnet
- permanent
- 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.)
- Pending
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
-
- 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
- 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
- H01F3/00—Cores, Yokes, or armatures
- H01F3/10—Composite arrangements of magnetic circuits
- H01F2003/106—Magnetic circuits using combinations of different magnetic materials
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention provides a permanent magnet biased magnetic element assembly which comprises a first group of magnetic circuits, a second group of magnetic circuits, excitation coils and at least one permanent magnet connecting magnetic circuit. The first group of magnetic circuits and the second group of magnetic circuits comprise magnetic circuits with low magnetic resistance and magnetic circuits with low magnetic resistance, and the excitation coils are respectively arranged on the two groups of magnetic circuits; the permanent magnet connecting magnetic circuits are connected with the two groups of magnetic circuits; the direction of permanent magnetic flux generated by permanent magnets on magnetic cores of the first group of magnetic circuits and magnetic cores of the second group of magnetic circuits is opposite to the direction of direct-current magnetic flux generated by the excitation coils on the magnetic cores of the first group of magnetic circuits and the magnetic cores of the second group of magnetic circuits owing to arrangement of the positions and the polarity of the permanent magnets. The permanent magnet biased magnetic element assembly has the advantages that the direct-current magnetic flux generated by direct-current portions of flowing currents which flow through magnetic element windings can be offset by the permanent magnetic flux generated by the permanent magnets, alternating-current magnetic flux generated by alternating-current components of the flowing currents in the magnetic element windings can be prevented from cutting the permanent magnets, accordingly, the volumes of magnetic core materials in magnetic elements can be diminished, or working currents of the magnetic elements can be increased, and the permanent magnets can be basically guaranteed against eddy current loss of alternating-current magnetic flux.
Description
Technical field
The present invention relates to a kind of magnetics assembly with permanent-magnet bias and its implementation.
Background technology
Power magnetic cell has quite varied application in various power inverters, such as the Boost inductance of pfc circuit, DC/
Outputting inductance etc. in the output inductor of DC changer, UPS, converter and inverter.But along with the raising of power is with straight
The increase of stream magnetic bias magnetic flux density, magnetic core saturation problem is also following, and then causes the decline of inductance value.Above-mentioned in order to solve
Problem, permanent magnet material is applied on power inductance by people, and the magnetic field to utilizing permanent magnet material to produce is offset and flow through inductance
The magnetic bias that the direct current component of coil current causes.
Prior art 1 is as it is shown in figure 1, be positioned over permanent magnet material in magnetic core air gap and (can fill up air gap or permanent magnet
With leave gap in the middle of magnetic core).For ferrite permanent-magnet materials, resistivity ratio is higher, and under high frequency magnetic flux, the eddy current caused damages
Consume relatively small, but the remanent magnetism magnetic of ferrite permanent-magnet materials be close and coercive force ratio is relatively low, it is allowed to operating temperature also than
Relatively low, at work, easily cause demagnetization and lost efficacy.For rare earth agglomeration permanent magnetic material, remanent magnetism magnetic is close and coercive force carries significantly
High, it is allowed to operating temperature the highest, but resistivity ratio is relatively low, under high frequency magnetic flux, can bring the biggest eddy current, cause damage
Consumption and the increase of temperature.
Prior art 2 is as in figure 2 it is shown, be placed on permanent magnet near magnetic cell magnetic core air gap and extra by increasing
Permeability magnetic material connect and form magnetic loop, and permanent magnet is the binding magnet using rare-earth magnetic powder and binding agent to be formed, because of
This has high resistivity, thus reduces high frequency eddy current losses.Although but the magnetic bias ability of bonded permanent magnet compares ferrite permanent-magnet
Height, but more much lower than the magnetic bias ability of rare earth sintered permanent magnet, it is difficult to obtain good effect.If using permanent magnetism performance good
Sintered permanent magnet, then in order to reduce the eddy-current loss of permanent magnet, be necessary for reducing and eliminating the exchange flux entering permanent magnet, this
It is accomplished by from structure designing magnetic circuit so that its magnetic resistance is substantially greater than (more than at least 5 times) air-gap reluctance, could effectively
Reduce AC excitation magnetic flux and enter magnetic circuit, thus reduce and avoid the eddy-current loss in permanent magnet, but thus affect
The design of magnetic circuit and actual application, also increase additional volumes.
The shortcoming of above-mentioned two technology is to produce the biggest eddy current effect in permanent magnet, causes the increasing of loss and temperature
Add, consequently, it is possible to cause demagnetization to lose efficacy, the most ineffective.Cause magnetic cell magnetic core at work saturated, degradation.
The problems referred to above are owing to permanent magnet is positioned in the middle of the air gap of magnetic cell or side, the height flow through in magnetic cell winding
Frequently alternating current can produce high-frequency alternating magnetic field, and in above-mentioned two technology, this high frequency magnetic field is all inevitably to permanent magnet
Cut, thus cause above-mentioned phenomenon.
The permanent magnet flux mainly aiming to i.e. utilize permanent magnet to produce of the present invention is offset to flow through in magnetic cell winding and is flowed
The direct current flux that the direct current component of overcurrent produces, prevents again the high frequency that the radio-frequency component flowing through electric current in magnetic cell winding produces
Permanent magnet is cut by magnetic flux, thus i.e. reduces the volume of permeability magnetic material in magnetic cell, in turn ensure that permanent magnet and magnetic unit
The stability of part.
Summary of the invention
It is an object of the invention to provide a kind of magnetics assembly with permanent-magnet bias and its implementation, utilize
The permanent magnet flux that permanent magnet produces is offset to flow through and is flow through the direct current flux that the direct current component of electric current produces in magnetic cell winding, prevents again
Permanent magnet is cut by the high frequency magnetic flux of the radio-frequency component generation only flowing through electric current in magnetic cell winding, thus i.e. reduces magnetic
The volume of permeability magnetic material in element, in turn ensure that the stability of permanent magnet and magnetic cell.
For achieving the above object, the technical scheme is that a kind of magnetics assembly with permanent-magnet bias, bag
Include first group of magnetic circuit, the second group of magnetic circuit formed by low reluctance magnetic circuit and high reluctance magnetic path and be separately positioned on described first
Excitation coil on group magnetic circuit, second group of magnetic circuit；Also include at least one be arranged on described first group of magnetic circuit, second group of magnetic circuit it
Between and connect first group of magnetic circuit, second group of magnetic circuit permanent magnet connect magnetic circuit；Described permanent magnet connects permanent magnet position in magnetic circuit
And the setting of permanent magnet polarity makes the permanent magnet flux side that permanent magnet produces on first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core
To in opposite direction with the direct current flux that described excitation coil produces on first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core.
In an embodiment of the present invention, described low reluctance magnetic circuit is made up of high magnetic permeability magnetic material；Described high reluctance magnetic path
It is made up of with air gap or their combination with air gap, low magnetic permeability material, low magnetic permeability high-permeability material.
In an embodiment of the present invention, described permanent magnet connects magnetic circuit by including permanent magnet material, air-gap and ferromagnetic leading
Magnetic design of material is constituted.
In an embodiment of the present invention, described first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core have identical or different
Shape, size.
In an embodiment of the present invention, described first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core are for including U-shaped, c-type, E type
Magnetic core.
In an embodiment of the present invention, described first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core are by including ferrite, non-
Crystalline substance, powder core, the soft magnetic material composition of stalloy.
In an embodiment of the present invention, described magnetics assembly can be as including filter inductance, choke coil, transformation
Device uses.
In an embodiment of the present invention, described magnetics assembly can use respectively as two magneticss, or
Person is used as a magnetics by described excitation coil series, parallel.
In an embodiment of the present invention, described magnetics assembly can be made up of magnetic circuit more than two.
Present invention also offers a kind of realization side based on the magnetics assembly with permanent-magnet bias described above
Method, by connecting permanent magnet position and the setting of permanent magnet polarity in magnetic circuit to permanent magnet so that permanent magnet first group of magnetic circuit,
Permanent magnet flux direction and the described excitation coil produced on all or part of magnetic core of second group of magnetic circuit first group of magnetic circuit, second
The direct current flux produced on group magnetic circuit is in opposite direction so that permanent magnet flux is cancelled out each other with direct current flux, and makes excitation coil
The exchange flux that produces of alternating component current connect magnetic circuit without going past permanent magnet, it is to avoid exchange flux draws on permanent magnet
The eddy-current loss risen.
Compared to prior art, the method have the advantages that the permanent magnet flux that the present invention utilizes permanent magnet to produce
Offset to flow through and magnetic cell winding flows through the direct current flux that the direct current component of electric current produces, prevent from again magnetic cell winding flows through electricity
Permanent magnet is cut by the high frequency magnetic flux that the radio-frequency component of stream produces, thus i.e. reduces the body of permeability magnetic material in magnetic cell
Long-pending, in turn ensure that the stability of permanent magnet and magnetic cell.
Accompanying drawing explanation
Fig. 1 is prior art one.
Fig. 2 is prior art two.
Fig. 3 is magnetics assembly principle schematic of the present invention.
Fig. 4 is for using magnetics assembly of the present invention and not using magnetics assembly inductance sensibility reciprocal of the present invention with logical
Cross the relation comparison diagram of DC current.
Fig. 5 is the embodiment of the present invention 1.
Fig. 6 is the embodiment of the present invention 2.
Fig. 7 is the embodiment of the present invention 3.
Fig. 8 is the embodiment of the present invention 4.
Fig. 9 is the embodiment of the present invention 5.
Figure 10 is the embodiment of the present invention 6.
Figure 11 is the embodiment of the present invention 7.
Figure 12 is the embodiment of the present invention 8.
Figure 13 is the embodiment of the present invention 9.
Figure 14 is the embodiment of the present invention 10.
Figure 15 is the embodiment of the present invention 11.
Figure 16 is the embodiment of the present invention 12.
Detailed description of the invention
Below in conjunction with the accompanying drawings, technical scheme is specifically described.
A kind of magnetics assembly with permanent-magnet bias of the present invention, including by low reluctance magnetic circuit and high magnetic resistance magnetic
Road composition first group of magnetic circuit, second group of magnetic circuit and be separately positioned on the excitation on described first group of magnetic circuit, second group of magnetic circuit
Coil；Also include at least one be arranged between described first group of magnetic circuit, second group of magnetic circuit and connect first group of magnetic circuit, second group
The permanent magnet of magnetic circuit connects magnetic circuit；Described permanent magnet connects the setting of permanent magnet position and permanent magnet polarity in magnetic circuit and makes permanent magnetism
The permanent magnet flux direction that body produces on first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core and described excitation coil are at first group of magnetic
The direct current flux produced on road magnetic core, second group of magnetic circuit magnetic core is in opposite direction.
Described low reluctance magnetic circuit is made up of high magnetic permeability magnetic material；Described high reluctance magnetic path is by high-permeability material and gas
Gap, low magnetic permeability material, low magnetic permeability are constituted with air gap or their combination.
Described permanent magnet connects magnetic circuit by including permanent magnet material, air-gap and ferromagnetic permeability magnetic material structure.
Described first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core have identical or different shape, size.Described first group
Magnetic circuit magnetic core, second group of magnetic circuit magnetic core are to include U-shaped, c-type, the magnetic core of E type.Described first group of magnetic circuit magnetic core, second group of magnetic circuit
Magnetic core is by including that ferrite, amorphous, powder core, the soft magnetic material of stalloy form.
Described magnetics assembly can be as including that filter inductance, choke coil, transformator use.Described magnetics
Assembly can use respectively as two magneticss, or by excitation coil series, parallel as a magnetics
Use.Described magnetics assembly can be made up of two or more magnetic core.
Present invention also offers a kind of realization side based on the magnetics assembly with permanent-magnet bias described above
Method, by connecting permanent magnet position and the setting of permanent magnet polarity in magnetic circuit to permanent magnet so that permanent magnet is at first group of magnetic circuit
Permanent magnet flux direction and the described excitation coil produced on magnetic core, second group of magnetic circuit magnetic core first group of magnetic circuit magnetic core, second group
The direct current flux produced on magnetic circuit magnetic core is in opposite direction so that permanent magnet flux is cancelled out each other with direct current flux, and due to excitation line
The exchange flux that the alternating component current of circle produces connects magnetic circuit without going past permanent magnet, it is to avoid exchange flux is on the permanent magnet
The eddy-current loss caused.
Tell about the implementation of the present invention in detail below.
The ultimate principle of the magnetics assembly that the present invention proposes is as it is shown on figure 3, i.e. in two CC type core inductance unit
Two permanent magnets that the magnetic core of part is placed by centre " connect ".The polarity of permanent magnet arrange and inductor winding around to
The DC component electric current making permanent magnet flux direction (shown in pecked line) and two inductor windings produced in magnetic core produces
DC excitation flow direction (shown in chain-dotted line) is contrary so that both magnetic fluxs can be offset, and the AC compounent of inductor winding
The exchange flux that electric current produces is without going past magnetic circuit, it is to avoid the eddy-current loss that exchange flux causes on permanent magnet.
This just can be in the case of not increasing extra permeability magnetic material, and the magnetic flux produced only by a pair permanent magnet is simultaneously in figure
The direct current flux produced in two inductor winding electric currents all realizes negative function, saves materials'use, significantly improves inductance
Density.Owing to there is no magnetic coupling between two inductance magneticss, it is that decoupling is independent, so this magnetics assembly is permissible
Independently use as two filter inductances, it is also possible to directly serial or parallel connection uses as an inductance.
According to the magnetics assembly of present invention composition, being suitably applied element coil electric current is at a big direct current
The situation of the alternating current component of one upper frequency of carrier wave above (or lower frequency) electric current, as dc/dc power converts
The output of device or the filter inductance of input, pfc circuit Boost inductance etc..The present invention can improve the anti-magnetic bias energy of inductance core
Power, as shown in Figure 4, improves the inductance value under certain DC magnetic bias current, or it is long-pending to reduce core cross section, thus reduce magnetic core array
Long-pending, it is also possible to reduce and be wound on coil average turn length and the resistance that core cross section amasss.Conventional belt permanent magnet electricity can be overcome simultaneously
LC is easily lost, by current impulse demagnetization, permanent magnet, the critical defect dramatically increased under high frequency flux interaction.
This invention is as a example by inductance coil element, but is not limited only to this.Can be equally applicable to need to use permanent magnet material
Improve the composite magnetic component structure of magnetic circuit magnetic core anti-magnetic bias ability, such as transformator, multiple-channel output integrated inductor and the like.
Specific embodiment is as follows:
As Fig. 5 is used on the filter inductance of output, adding three pairs of permanent magnets in the middle of two UUI type inductance, permanent magnet flux passes through two
The magnetic core of individual inductance forms loop, offsets the direct current flux that in inductor winding electric current, direct current component produces, play saving magnetic core and
The purpose of winding conductor.
Example 2 inductance as shown in Figure 6 uses EE type magnetic core, and air gap is in magnetic core both sides, on the limit of two inductance air gaps
Plus permanent magnet as depicted, the effect of direct current flux in magnetic core of offsetting just can be played.
Example 3 inductance as shown in Figure 7 uses the core structure as example 2 and gap position, except for the difference that permanent magnetism
Body is applied to center pillar two ends, and thus relative to decreasing the use of permanent magnet for example 2, bad a little can only reduce exactly
The volume of center pillar air gap, this can reduce the length of winding equally, and then reduce its resistance value.
Example 4 inductance as shown in Figure 8 uses core structure as depicted, by adding a pair forever on center pillar air gap both sides
Magnet just can realize the effect of direct current flux in magnetic core that balances.In this case the winding of inductance can be wound on two side columns
On.
Example 5 inductance as shown in Figure 9 uses the core structure as example 4 and gap position, except for the difference that permanent magnetism
Body is added in four end points of magnetic core, more holds for thus can offsetting the direct current flux in side column magnetic core, and relative example 4
Easily coiling winding.
Example 6 inductance as shown in Figure 10 uses the core structure as example 4 and example 5 and gap position, different
Be to have added a pair permanent magnet in order to offset the direct current flux in side column magnetic core, for relative example 5 at the center pillar end points of magnetic core
Lack a pair, and be easier to coiling winding for relative example 4.
Example 7 as shown in figure 11 uses the mode that c-type magnetic core and EE magnetic core combine, principle with the most the same, two
Individual inductance can be used alone and not interfere with each other, it can thus be appreciated that, moreover it is possible to list many compound modes planting difformity magnetic core.
Example 8 as shown in figure 12 is the outside that permanent magnet is placed on magnetic core, can with Fig. 3 produce effect.
Example 9 is to have added iron core in the middle of permanent magnet as shown in fig. 13 that, can reduce the volume of permanent magnet, and will produce
Raw effect, as Fig. 3 and example 9, can also use identical way in other examples.It will be clear that the present invention
In described by magnetic core by the meaning that permanent magnet couples together be in connector can containing but not only only have permanent magnet.
Example 10 as shown in figure 14 is the inductance element assembly of four inductance compositions, equally realizes reducing magnetic core
Volume and the purpose of winding consumption.As long as so adding utilization, equally by multiple separate inductors and permanent magnet to present principles is kind
It is combined.
Example 11 as shown in figure 15 has the core structure identical with Fig. 3, and except for the difference that one of them permanent magnet is with leading
Magnetic material replaces, so only can be achieved with identical function with a permanent magnet, decreases the use of permanent magnet.
The magnetic core of the magnetic cell assembly of example 12 as shown in figure 16 does not has air gap, but by the magnetic post with air gap
Replace with low magnetic permeability magnetic material, by being shown in the centre of two magnetic cores plus after permanent magnet, it is possible to achieve to centre
The negative function of direct current flux in the magnetic post being made up of high magnetic permeability permeability magnetic material.
Being above presently preferred embodiments of the present invention, all changes made according to technical solution of the present invention, produced function is made
With during without departing from the scope of technical solution of the present invention, belong to protection scope of the present invention.
Claims (10)
1. a magnetics assembly with permanent-magnet bias, it is characterised in that: include by low reluctance magnetic circuit and high magnetic resistance
Magnetic circuit composition first group of magnetic circuit, second group of magnetic circuit and be separately positioned on described first group of magnetic circuit, second group of magnetic circuit swash
Encourage coil；Also include at least one be arranged between described first group of magnetic circuit, second group of magnetic circuit and connect first group of magnetic circuit, second
The permanent magnet of group magnetic circuit connects magnetic circuit；Described permanent magnet connects the setting of permanent magnet position and permanent magnet polarity in magnetic circuit and makes forever
The permanent magnet flux direction that magnet produces on first group of magnetic circuit magnetic core, second group of magnetic circuit magnetic core and described excitation coil are at first group
The direct current flux produced on magnetic circuit magnetic core, second group of magnetic circuit magnetic core is in opposite direction.
A kind of magnetics assembly with permanent-magnet bias the most according to claim 1, it is characterised in that: described low magnetic
Resistance magnetic circuit is made up of high magnetic permeability magnetic material；Described high reluctance magnetic path is by high-permeability material and air gap, low magnetic permeability material, low
Pcrmeability is constituted with air gap or their combination.
A kind of magnetics assembly with permanent-magnet bias the most according to claim 1, it is characterised in that: described permanent magnetism
Body connects magnetic circuit by including permanent magnet material, air-gap and ferromagnetic permeability magnetic material structure.
4. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described first group
Magnetic circuit magnetic core, second group of magnetic circuit magnetic core have identical or different shape, size.
5. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described first group
Magnetic circuit magnetic core, second group of magnetic circuit magnetic core are to include U-shaped, c-type, the magnetic core of E type.
6. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described first group
Magnetic circuit magnetic core, second group of magnetic circuit magnetic core are by including that ferrite, amorphous, powder core, the soft magnetic material of stalloy form.
7. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described magnetic unit
Part assembly can be as including that filter inductance, choke coil, transformator use.
8. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described magnetic unit
Part assembly can use respectively as two magneticss, or by described excitation coil series, parallel as a magnetic
Property element use.
9. according to a kind of magnetics assembly with permanent-magnet bias described in claim 1, it is characterised in that: described magnetic unit
Part assembly can be made up of magnetic circuit more than two.
10. a realization side based on the magnetics assembly with permanent-magnet bias described in claim 1-9 any one
Method, it is characterised in that: by permanent magnet is connected permanent magnet position and the setting of permanent magnet polarity in magnetic circuit so that permanent magnet exists
First group of magnetic circuit, second group of magnetic circuit all or part of magnetic core on the permanent magnet flux direction and the described excitation coil that produce first
The direct current flux produced on group magnetic circuit, second group of magnetic circuit is in opposite direction so that permanent magnet flux is cancelled out each other with direct current flux, and makes
The exchange flux that produces of the alternating component current of excitation coil connects magnetic circuit without going past permanent magnet, it is to avoid exchange flux exists
The eddy-current loss caused on permanent magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668052.5A CN106057395A (en) | 2016-08-16 | 2016-08-16 | Permanent magnet biased magnetic element assembly and method for implementing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610668052.5A CN106057395A (en) | 2016-08-16 | 2016-08-16 | Permanent magnet biased magnetic element assembly and method for implementing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106057395A true CN106057395A (en) | 2016-10-26 |
Family
ID=57480899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610668052.5A Pending CN106057395A (en) | 2016-08-16 | 2016-08-16 | Permanent magnet biased magnetic element assembly and method for implementing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106057395A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275056A (en) * | 2017-05-12 | 2017-10-20 | 中科电力装备集团有限公司 | A kind of transformer device structure |
| CN107367288A (en) * | 2017-07-27 | 2017-11-21 | 宁波中车时代传感技术有限公司 | A kind of micro fluxgate sensor preparation method |
| CN109698625A (en) * | 2018-11-21 | 2019-04-30 | 东华大学 | Improve the implementation method of flyback power converter transformer output power density |
| GB2607636A (en) * | 2021-06-10 | 2022-12-14 | Eaton Intelligent Power Ltd | Improved passive device, arrangement and electric circuit for limiting or reducing a current rise |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354485A (en) * | 2000-11-20 | 2002-06-19 | 株式会社东金 | Inductance coil element of permanent magnet near magnetic gap |
| JP2003338414A (en) * | 2002-05-20 | 2003-11-28 | Mitsubishi Electric Corp | Reactor |
| CN101197205A (en) * | 2006-09-21 | 2008-06-11 | 福特环球技术公司 | Inductor topologies with substantial common mode and differential mode inductance |
| CN101853729A (en) * | 2010-07-06 | 2010-10-06 | 福州大学 | Magnetic element with permanent magnetic bias |
| JP2010283283A (en) * | 2009-06-08 | 2010-12-16 | Honda Motor Co Ltd | Reactor |
| CN103578688A (en) * | 2012-07-20 | 2014-02-12 | 南昌航空大学 | Inductance element provided with permanent magnet bias magnet and bypass magnetic core |
| CN205943635U (en) * | 2016-08-16 | 2017-02-08 | 福州大学 | Magnetic element assembly with permanent magnetism bias magnetic |
-
2016
- 2016-08-16 CN CN201610668052.5A patent/CN106057395A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1354485A (en) * | 2000-11-20 | 2002-06-19 | 株式会社东金 | Inductance coil element of permanent magnet near magnetic gap |
| JP2003338414A (en) * | 2002-05-20 | 2003-11-28 | Mitsubishi Electric Corp | Reactor |
| CN101197205A (en) * | 2006-09-21 | 2008-06-11 | 福特环球技术公司 | Inductor topologies with substantial common mode and differential mode inductance |
| JP2010283283A (en) * | 2009-06-08 | 2010-12-16 | Honda Motor Co Ltd | Reactor |
| CN101853729A (en) * | 2010-07-06 | 2010-10-06 | 福州大学 | Magnetic element with permanent magnetic bias |
| CN103578688A (en) * | 2012-07-20 | 2014-02-12 | 南昌航空大学 | Inductance element provided with permanent magnet bias magnet and bypass magnetic core |
| CN205943635U (en) * | 2016-08-16 | 2017-02-08 | 福州大学 | Magnetic element assembly with permanent magnetism bias magnetic |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107275056A (en) * | 2017-05-12 | 2017-10-20 | 中科电力装备集团有限公司 | A kind of transformer device structure |
| CN107275056B (en) * | 2017-05-12 | 2019-02-12 | 中科电力装备集团有限公司 | A kind of transformer device structure |
| CN107367288A (en) * | 2017-07-27 | 2017-11-21 | 宁波中车时代传感技术有限公司 | A kind of micro fluxgate sensor preparation method |
| CN107367288B (en) * | 2017-07-27 | 2023-11-21 | 宁波中车时代传感技术有限公司 | Preparation method of miniature fluxgate sensor |
| CN109698625A (en) * | 2018-11-21 | 2019-04-30 | 东华大学 | Improve the implementation method of flyback power converter transformer output power density |
| GB2607636A (en) * | 2021-06-10 | 2022-12-14 | Eaton Intelligent Power Ltd | Improved passive device, arrangement and electric circuit for limiting or reducing a current rise |
| WO2022258225A1 (en) * | 2021-06-10 | 2022-12-15 | Eaton Intelligent Power Limited | Improved passive device, arrangement and electric circuit for limiting or reducing a current rise |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101241564B1 (en) | Couple inductor, Couple transformer and Couple inductor-transformer | |
| US9030282B2 (en) | Permanent magnet DC inductor | |
| CN106057395A (en) | Permanent magnet biased magnetic element assembly and method for implementing same | |
| CN104025217B (en) | Magnetic core, integrated magnetic element, active clamp forward-flyback circuit and switch power supply | |
| CN112700961A (en) | Inductor winding method for reducing power frequency magnetic flux density of coupling inductor and coupling inductor with low power frequency magnetic flux density | |
| CN105518810A (en) | Integrated magnetic assemblies and methods of assembling same | |
| CN102594107A (en) | LCL filter utilizing integrated inductors | |
| TW201532088A (en) | Magnetic core | |
| CN104282412B (en) | Magnetic integrated inductor | |
| JP2007123596A (en) | Dc reactor and inverter device | |
| CN101789304A (en) | Magnetic element with permanent magnetic bias | |
| CN103578688A (en) | Inductance element provided with permanent magnet bias magnet and bypass magnetic core | |
| CN209418265U (en) | A kind of inductor | |
| JP2011159851A (en) | Reactor | |
| CN201732654U (en) | Permanent-magnet bias magnetic element | |
| TW522412B (en) | Inductance component having a permanent magnet in the vicinity of a magnetic gap | |
| CN205943635U (en) | Magnetic element assembly with permanent magnetism bias magnetic | |
| WO2013044416A1 (en) | Inductor that switches between coupled and decoupled states | |
| CN103856176A (en) | LCL filter with coupled inductors | |
| CN116598102A (en) | Inductor and electronic device using laminated tape | |
| JP3784629B2 (en) | Current limiter | |
| CN109755006A (en) | A kind of parallel connection based on PT symmetry principle-parallel connection type iron-free core transformer | |
| JP2001238349A (en) | Current limiter | |
| CN107026550A (en) | A kind of Hybrid Excitation Switched Reluctance Motor | |
| CN206921630U (en) | Permanent magnet bias inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
|
| RJ01 | Rejection of invention patent application after publication |