CN204537827U - Big current high resistance saturated inductor - Google Patents
Big current high resistance saturated inductor Download PDFInfo
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- CN204537827U CN204537827U CN201520119867.9U CN201520119867U CN204537827U CN 204537827 U CN204537827 U CN 204537827U CN 201520119867 U CN201520119867 U CN 201520119867U CN 204537827 U CN204537827 U CN 204537827U
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Abstract
The utility model discloses a kind of big current high resistance saturated inductor.Little in order to overcome the resistance to current value of the existing inductor for capability correction, anti-saturation ability is low, volume is large, the high deficiency of manufacturing cost, the utility model comprises adjustment iron core, the joint iron core with center pillar, and described adjustment iron core is made up of two pieces of sub-iron cores, and 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 thinner sub-iron core is shorter than the center pillar of thicker sub-iron core.The utility model is used for capability correction inductor, and it can when not increasing core volume, and significantly improve the overload values of electric current, volume is little, and overload capacity is strong, and performance improves, and manufacturing cost reduces.
Description
Technical field
The utility model relates to a kind of inductor, is specially a kind of big current high resistance saturated inductor.
Background technology
PFC inductance is power rectifier, and it need have the DC-BAIS performance of high saturated magnetic induction, resistance to big current, and frequency stability is good, and loss is 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 and shaping fixing joined by magnetic core, and can not change, DC-BIAS can not regulate; And traditional Mn-Zn ferrite, because anti-saturation is indifferent, is big current PFC and designs, size design can be very large, therefore actually to manufacture, application is very difficult.
The deficiency of the existing inductor for capability correction is that resistance to current value is little, and anti-saturation ability is low, and the electric current namely transshipped can not be very large, as transshipped big current, then needs the volume increasing iron core, not only take up room large, and manufacturing cost is high.
Utility model content
The purpose of this utility model is exactly for above-mentioned deficiency, a kind of big current high resistance saturated inductor is provided, it can when not increasing core volume, significantly improve the overload values of electric current, overload capacity is strong, can transship big current, anti-saturation ability is strong, performance significantly improves, and volume is little, and manufacturing cost reduces.
For achieving the above object, the technical solution of the utility model is, this big current high resistance saturated inductor, and comprise adjustment iron core, the joint iron core with center pillar, described adjustment 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 thinner sub-iron core is shorter than the center pillar of thicker sub-iron core.
Adjustment iron core described in the utility model is made up of two pieces of sub-iron cores.The adjustment iron core of existing monoblock can be become two pieces of sub-iron cores along the line rip cutting of its side column, center pillar, or existing adjustment iron core is prefabricated into respectively two pieces of sub-iron cores that can unite two into one, coiling is arranged on the center pillar of the adjustment iron core of two pieces of sub-iron cores synthesis.
The thickness of the utility model 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 thinner 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 and regulate iron core, the wherein structure of styletable head forming section notch, and also this notch can change as required, and flexibility is large, and practicality strengthens.
The utility model is due to above-mentioned improvement, thus the ferritic adjustment iron core of Mn-Zn can be adopted, engage iron core, adjustment iron core is divided into two and makes the different sub-iron core of two pieces of thickness, and the center pillar of thinner sub-iron core is shorter than the center pillar of thicker sub-iron core, the center pillar of the adjustment iron core of two pieces of sub-iron core synthesis is made to be formed stepped, meet high anti-saturation thus, large magnetic flux density, the requirement of resistance to big current, and on cost comparatively metal magnetic powder core have and significantly reduce, the ferritic volume of more traditional Mn-Zn has and significantly reduces, especially can according to practical application, by regulating the GAP of the two pieces of sub-iron cores engaging iron core and regulate iron core, meet corresponding saturation current requirement.
Iron core (magnetic core) is made greatly by the utility model, in, little three pieces of iron cores (magnetic core), and air gap is split into stepped, like this can by adjustment, 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, the demand of anti-saturation electric current can not be met, bulky problem can not be solved.
The center pillar of described two pieces of sub-iron cores by being made up of two pieces of sub-iron cores by described adjustment iron core, and then is set to Length discrepancy by the utility model, 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.Like this, regulate iron core with engages iron core group integrally time, test proof, the overload current of 50% can be improved, and the center pillar of the two docks " air gap " that formed, can required design manufacture, design alterability is good, performance improves, and realizes easily, to regulate resistance to current value by thin sub-iron core, regulate inductance value by thick sub-iron core, the iron core achieving same volume can transship larger current.
The utility model iron core (magnetic core) can adopt Mn-Zn ferrite thus, and cost is low, and frequency effect is better, can as required flexible size of gaps to meet inductance demand, frequency effect and DC-BIAS curve better
The utility model is used for capability correction inductor, and it can when not increasing core volume, and adopt Mn-Zn ferrite, significantly improve the overload values of electric current, volume is little, and overload capacity is strong, and performance improves, and manufacturing cost reduces.
Accompanying drawing explanation
This accompanying drawing is that the utility model is along center pillar place cross-sectional.
In figure, 1. regulate iron core, 2. engage iron core.
Embodiment
As shown in this figure, this big current high resistance saturated inductor, comprise adjustment iron core 1, the joint iron core 2 with center pillar, described adjustment 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 thinner 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 thinner 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 and regulate iron core 1, the wherein structure of styletable head forming section notch, and also this notch can change as required, and flexibility is large, 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, like this can by adjustment, 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, the demand of anti-saturation electric current can not be met, bulky problem can not be solved.
The ferritic adjustment iron core of Mn-Zn can be adopted, engage iron core, adjustment iron core is divided into two and makes the different sub-iron core of two pieces of thickness, and the center pillar of thinner sub-iron core is shorter than the center pillar of thicker sub-iron core, the center pillar of the adjustment iron core of two pieces of sub-iron core synthesis is made to be formed stepped, meet high anti-saturation thus, large magnetic flux density, the requirement of resistance to big current, and on cost comparatively metal magnetic powder core have and significantly reduce, the ferritic volume of more traditional Mn-Zn has and significantly reduces, especially can according to practical application, by regulating the GAP of the two pieces of sub-iron cores engaging iron core and regulate iron core, meet corresponding saturation current requirement.
Claims (3)
1. a big current high resistance saturated inductor, comprise adjustment iron core (1), joint iron core (2) with center pillar, it is characterized in that, described adjustment iron core (1) is made up of two pieces of sub-iron cores.
2. big current high resistance saturated inductor according to claim 1, is characterized in that, the thickness of described two pieces of sub-iron cores is unequal.
3. big current high resistance saturated inductor according to claim 2, is characterized in that, the center pillar Length discrepancy of described two pieces of sub-iron cores, and the center pillar of thinner sub-iron core is shorter than the center pillar of thicker sub-iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119867.9U CN204537827U (en) | 2015-02-28 | 2015-02-28 | Big current high resistance saturated inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119867.9U CN204537827U (en) | 2015-02-28 | 2015-02-28 | Big current high resistance saturated inductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204537827U true CN204537827U (en) | 2015-08-05 |
Family
ID=53751799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119867.9U Expired - Fee Related CN204537827U (en) | 2015-02-28 | 2015-02-28 | Big current high resistance saturated inductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204537827U (en) |
-
2015
- 2015-02-28 CN CN201520119867.9U patent/CN204537827U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20160228 |