CN105990013A - Large-current high-saturation-resistance inductor - Google Patents
Large-current high-saturation-resistance inductor Download PDFInfo
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- CN105990013A CN105990013A CN201510091250.5A CN201510091250A CN105990013A CN 105990013 A CN105990013 A CN 105990013A CN 201510091250 A CN201510091250 A CN 201510091250A CN 105990013 A CN105990013 A CN 105990013A
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Abstract
The invention discloses a large-current high-saturation-resistance inductor. In order to overcome the defects that an existing inductor for power correction is small in small in current resistance value, low in saturation resistance, large in size, high in manufacturing cost and the like, the large-current high-saturation-resistance inductor comprises an adjusting iron core with middle columns and a connection iron core, the adjusting iron core is composed of two sub iron cores with different thicknesses, the middle columns of the two sub iron cores do not have equal lengths, and the middle column of the thinner sub iron core is shorter than that of the thicker sub iron core. The inductor is used for power correction, can significantly improve current overload value on the condition of not increasing the iron core size, and is small in size and strong in overload capability, performance is improved, and the manufacturing cost is reduced.
Description
Technical field
The present invention relates to a kind of inducer, be specially a kind of big electric current height anti-saturation inducer.
Background technology
PFC inductance is power appliance, and it need to have high saturated magnetic induction, the DC-BAIS performance of resistance to big electric current, and frequency stability is good, is lost low.Traditional PFC inductance core all selects metal magnetic powder core class or non-crystal class magnetic core, but these two kinds of magnetic cores are expensive, and powder joined by magnetic core and molding is fixed, it is impossible to being altered, DC-BIAS can not regulate；And tradition Mn-Zn ferrite because anti-saturation is indifferent, do big electric current PFC design, size design can be very big, therefore actual manufacture, application the most difficult.
The deficiency of the inducer being currently used for capability correction is, resistance to current value is little, and anti-saturation ability is low, and the electric current i.e. transshipped can not be very big, as transshipped big electric current, then needs to increase the volume of iron core, not only takes up room big, and manufacturing cost is high.
Summary of the invention
The purpose of the present invention is aiming at above-mentioned deficiency, a kind of big electric current height anti-saturation inducer is provided, it can be in the case of not increasing core volume, significantly improving the overload values of electric current, overload capacity is strong, it is possible to transship big electric current, anti-saturation ability is strong, performance significantly improves, and volume is little, and manufacturing cost reduces.
For reaching above-mentioned purpose, the technical scheme is that, this big electric current height anti-saturation inducer, including having the regulation iron core of center pillar, engaging iron core, described regulation iron core is made up of two pieces of sub-iron cores.
The thickness of described two pieces of sub-iron cores is unequal.
The center pillar Length discrepancy of described two pieces of sub-iron cores, the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core.
Regulation iron core of the present invention is made up of two pieces of sub-iron cores.Along the line rip cutting of its side column, center pillar, the regulation iron core of existing monoblock can be become two pieces of sub-iron cores, or existing regulation iron core is prefabricated into two pieces of sub-iron cores respectively that can unite two into one, coiling is arranged on the center pillar of regulation iron core of two pieces of sub-iron cores synthesis.
The thickness of two pieces of sub-iron cores of the present invention is unequal, the center pillar Length discrepancy of two pieces of sub-iron cores, and the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core.When this thick sub-iron core, thin sub-iron core synthesize regulation iron core, the wherein structure of styletable head forming part notch, and also this notch can be altered as desired, and motility is big, and practicality strengthens.
Due to the fact that above-mentioned improvement, thus Mn-Zn ferritic regulation ferrum core can be used, engage ferrum core, regulation iron core is divided into two and makes two pieces of different sub-ferrum cores of thickness, and the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core, the center pillar making the regulation iron core of two pieces of sub-iron core synthesis is formed stepped, thus meet high anti-saturation, big magnetic induction, the requirement of resistance to big electric current, and relatively metal magnetic powder core has and significantly reduces on cost, the ferritic volume of more traditional Mn-Zn has and significantly reduces, especially can apply according to reality, the GAP of two pieces of sub-iron cores of iron core and regulation iron core is engaged by regulation, meet the saturation current requirement of correspondence.
Iron core (magnetic core) is made greatly by the present invention, in, little three pieces of iron cores (magnetic core), and air gap is split into stepped, so can be by regulation, the air gap degree of depth of little iron core (magnetic core) obtains the demand of required inductance and saturation current, and design alterability is good, solve conventional iron oxysome and be PFC, it is impossible to meet the demand of anti-saturation electric current, bulky problem can not be solved.
The present invention is by being made up of described regulation iron core two pieces of sub-iron cores, and then the center pillar of described two pieces of sub-iron cores is set to Length discrepancy, and the thickness of two pieces of sub-iron cores is different, and the center pillar of described thin sub-iron core is shorter than the center pillar of thick sub-iron core.So, regulation iron core with engages iron core group integral time, test proof, the overcurrent of 50% can be improved, and, the center pillar of the two docks " air gap " formed, can be with required design manufacture, design alterability is good, performance improves, it is achieved easily, can regulate resistance to current value by thin sub-iron core, inductance value is regulated, it is achieved that the iron core of same volume can transship larger current by thick sub-iron core.
Iron core of the present invention (magnetic core) thus can use Mn-Zn ferrite, low cost, and frequency effect is more preferable, can be with on-demand flexible size of gaps to meet inductance demand, and frequency effect and DC-BIAS curve are more preferable
The present invention is used for capability correction inducer, and it can use Mn-Zn ferrite, significantly improve the overload values of electric current in the case of not increasing core volume, and volume is little, and overload capacity is strong, and performance improves, and manufacturing cost reduces.
Accompanying drawing explanation
This accompanying drawing is the present invention along cross-sectional at center pillar.
In figure, 1. regulation iron core, 2. engage iron core.
Detailed description of the invention
As shown in this figure, this big electric current height anti-saturation inducer, including there is the regulation iron core 1 of center pillar, engaging iron core 2, described regulation iron core 1 is made up of two pieces of sub-iron cores, the thickness of described two pieces of sub-iron cores is unequal, the center pillar Length discrepancy of described two pieces of sub-iron cores, the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core.
The thickness of two pieces of sub-iron cores is unequal, the center pillar Length discrepancy of two pieces of sub-iron cores, and the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core.When this thick sub-iron core, thin sub-iron core synthesize regulation iron core 1, the wherein structure of styletable head forming part notch, and also this notch can be altered as desired, and motility is big, and practicality strengthens.
Iron core (magnetic core) can be made greatly, in, little three pieces of iron cores (magnetic core), and air gap is split into stepped, so can be by regulation, the air gap degree of depth of little iron core (magnetic core) obtains the demand of required inductance and saturation current, and design alterability is good, solve conventional iron oxysome and be PFC, it is impossible to meet the demand of anti-saturation electric current, bulky problem can not be solved.
Mn-Zn ferritic regulation ferrum core can be used, engage ferrum core, regulation iron core is divided into two and makes two pieces of different sub-ferrum cores of thickness, and the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core, the center pillar making the regulation iron core of two pieces of sub-iron core synthesis is formed stepped, thus meet high anti-saturation, big magnetic induction, the requirement of resistance to big electric current, and relatively metal magnetic powder core has and significantly reduces on cost, the ferritic volume of more traditional Mn-Zn has and significantly reduces, especially can apply according to reality, the GAP of two pieces of sub-iron cores of iron core and regulation iron core is engaged by regulation, meet the saturation current requirement of correspondence.
Claims (3)
1. a big electric current height anti-saturation inducer, including having the regulation iron core (1) of center pillar, engaging iron core (2), is characterized in that, described regulation iron core (1) is made up of two pieces of sub-iron cores.
Big electric current height anti-saturation inducer the most according to claim 1, is characterized in that, the thickness of described two pieces of sub-iron cores is unequal.
Big electric current height anti-saturation inducer the most according to claim 2, is characterized in that, the center pillar Length discrepancy of described two pieces of sub-iron cores, the center pillar of relatively thin sub-iron core is shorter than the center pillar of thicker sub-iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091250.5A CN105990013A (en) | 2015-02-28 | 2015-02-28 | Large-current high-saturation-resistance inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510091250.5A CN105990013A (en) | 2015-02-28 | 2015-02-28 | Large-current high-saturation-resistance inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105990013A true CN105990013A (en) | 2016-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510091250.5A Pending CN105990013A (en) | 2015-02-28 | 2015-02-28 | Large-current high-saturation-resistance inductor |
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| CN (1) | CN105990013A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01125809A (en) * | 1987-11-10 | 1989-05-18 | Tokin Corp | Magnetic core for variable inductor |
| JPH06295824A (en) * | 1993-04-09 | 1994-10-21 | Matsushita Electric Ind Co Ltd | Transformer |
| JPH07297045A (en) * | 1994-04-20 | 1995-11-10 | Tokin Corp | Drum magnetic core |
| JP2000208328A (en) * | 1999-01-18 | 2000-07-28 | Toko Inc | Inductance element |
| CN200941331Y (en) * | 2006-08-14 | 2007-08-29 | 峻达电子有限公司 | Externally-winding L/T inductor |
| CN102543370A (en) * | 2010-12-22 | 2012-07-04 | 旭丽电子(广州)有限公司 | Iron core and inductor |
| CN103559978A (en) * | 2008-05-28 | 2014-02-05 | 弗莱克斯电子有限责任公司 | Power converter magnetic devices |
-
2015
- 2015-02-28 CN CN201510091250.5A patent/CN105990013A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01125809A (en) * | 1987-11-10 | 1989-05-18 | Tokin Corp | Magnetic core for variable inductor |
| JPH06295824A (en) * | 1993-04-09 | 1994-10-21 | Matsushita Electric Ind Co Ltd | Transformer |
| JPH07297045A (en) * | 1994-04-20 | 1995-11-10 | Tokin Corp | Drum magnetic core |
| JP2000208328A (en) * | 1999-01-18 | 2000-07-28 | Toko Inc | Inductance element |
| CN200941331Y (en) * | 2006-08-14 | 2007-08-29 | 峻达电子有限公司 | Externally-winding L/T inductor |
| CN103559978A (en) * | 2008-05-28 | 2014-02-05 | 弗莱克斯电子有限责任公司 | Power converter magnetic devices |
| CN102543370A (en) * | 2010-12-22 | 2012-07-04 | 旭丽电子(广州)有限公司 | Iron core and inductor |
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Application publication date: 20161005 |