CN103646750A - Magnetic sealing compound winding type power inductor and preparation method thereof - Google Patents
Magnetic sealing compound winding type power inductor and preparation method thereof Download PDFInfo
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- CN103646750A CN103646750A CN201310698769.0A CN201310698769A CN103646750A CN 103646750 A CN103646750 A CN 103646750A CN 201310698769 A CN201310698769 A CN 201310698769A CN 103646750 A CN103646750 A CN 103646750A
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- type ferrite
- enamelled wire
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Abstract
The invention discloses a magnetic sealing compound winding type power inductor and a preparation method thereof. The power inductor comprises an M-type ferrite magnetic tank (1), an enameled wire winding group (2) and a magnetic sealing compound (3), wherein the enameled wire winding group (2) is mounted in the M-type ferrite magnetic tank (1), two lead-out pins of the enameled wire winding group (2) are higher than the tank port of the M-type ferrite magnetic tank (1), a gap between the M-type ferrite magnetic tank (1) and the enameled wire winding group (2) is filled with the magnetic sealing compound (3), and the power inductor is formed integrally. According to the power inductor and the preparation method, the fixed inductor is formed by injection of the magnetic sealing compound, so that miniaturization of the power inductor is achieved, the electric characteristics are excellent, DCR (direct current resistance) is small, saturation current is large and not required to be adjusted through an air gap, electric parameter consistency is good, the material cost is low, a technological process is shortened, and a processing tool is simple.
Description
Technical field
The present invention relates to inductance, be specifically related to a kind of magnetic sealing Wound-rotor type power inductance and preparation method thereof.
Background technology
Inductor is one of three large main Passive components, and kind is many, and application is wide.The demand of automotive electronics, smart mobile phone and dull and stereotyped computer market becomes the main driving source that inductor industry is grown up at present, except the number of units of complete machine itself increases to some extent, the installation quantity of complete machine monomer periphery inductor and kind be also in continuous increase, thereby driven the overall growth in inductor market.In addition, estimate also will in recent years, continue to become better in the markets such as household electrical appliances (liquid crystal, laser television etc.), radio communication (3G/4G), high in the clouds memory device, safety monitoring, automotive electronics, LED illumination, these are all the product industries of the high consumption of inductor, also impel inductor to enter into a period of upgrading fast.Large electric current, small size, low-loss, the inductance that anti-electromagnetic interference capability is strong, be widely applied in fields such as smart mobile phone, panel computer, automobile active safety system (spacing radar, shooting, air bag, tire pressure monitoring), passive entry systems (entering without car key).The development of 4G LTE and multifrequency bandwidth also relates to radio-frequency power inductance significantly to be increased quantity is installed, high communication quality requirement product miniaturization and possess high Q value, stability, hot properties, high frequency characteristics, compared with high workload efficiency etc.
Summary of the invention
The object of the invention is to: a kind of magnetic sealing Wound-rotor type power inductance and preparation method thereof is provided, adopt magnetic sealing glue to form fixed inductance, realize power inductance miniaturization, electrical characteristic is excellent, and DCR is little, saturation current is large, do not need to regulate saturation current by air gap, electric parameter high conformity, Material Cost is low, shortened process, machining tool is simple.
Technical solution of the present invention is: this power inductance comprises the filling of M type ferrite magnetic, enamelled wire coiling group and magnetic sealing, enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with, M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, whole formation power inductance.
Wherein, the preparation method of this power inductance is: enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with, M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped; Magnetic sealing adds epoxy resin, silicone resin or phenolic resins to form in metal magnetic, and the addition of epoxy resin, silicone resin or phenolic resins accounts for 12% ~ 22% of metal magnetic quality; Metal magnetic is iron powder, carbonyl iron dust, sendust powder, iron nickel-molybdenum alloy powder, ferrimanganic Zinc alloy powder, iron magnesium-zinc alloy powder or iron nickel zinc alloy powder; The composition of sendust powder, iron nickel-molybdenum alloy powder, ferrimanganic Zinc alloy powder, iron magnesium-zinc alloy powder or iron nickel zinc alloy powder is counted in mass ratio: Si or Ni or M
nor Mg is 35% ~ 45%, Al or M
oor Zn is that 5% ~ 10%, Fe is 45% ~ 60%.
The present invention has the following advantages: 1, magnetic sealing Wound-rotor type power inductance of the present invention is filled magnetic sealing and M type ferrite magnetic filling formation radome by the periphery in enamelled wire coiling group, and its inductance full-enclosed structure reduces EMI to be disturbed; 2, this inductance, without bonding single part, is stopped the high-frequency resonance that material (magnetosheath+middle rod+coil) engages bad generation; 3, embedding is combined closely magnetic sealing and enamelled wire coiling group, metal magnetic coil zero distance, and vortex current is effectively suppressed; 4, the inductance that prepared by the present invention has the material of saving and two aspect advantages of energy environment protection, and inductance value improves 29% ~ 37%, and reduction copper cash use amount 30 ~ 50%, improves 34% by current capacity, and adaptability is more extensive, can reach again the characteristic of ring-shaped inductors; 5, in production process, avoid petrochemical industry material, every kk/pcs saves about 3kg glue/varnish; 6, automation or semi automatic machineization produce all can, reduce deficient manufacturing procedure, cost performance is high; 7, realize power inductance miniaturization, electrical characteristic is excellent, and DCR is little, and saturation current is large, do not need to regulate saturation current by air gap, and electric parameter high conformity, Material Cost is low, shortened process, machining tool is simple; 8, manufacture craft is simple, and equipment investment is few, and the consumption of material and the energy is little, and this technique significantly reduces the cost of inductance, can line of specificationsization produce.
Accompanying drawing explanation
Fig. 1 is the structural representation of magnetic sealing Wound-rotor type power inductance.
In figure: 1 M type ferrite magnetic is filled with, 2 enamelled wire coiling groups, 3 magnetic sealings.
Embodiment
As shown in Figure 1, this power inductance comprises M type ferrite magnetic filling 1, enamelled wire coiling group 2 and magnetic sealing 3, enamelled wire coiling group 2 is arranged on M type ferrite magnetic and fills with in 1, two leading foots of enamelled wire coiling group 2 exceed the filling mouth of M type ferrite magnetic filling 1, the gap-fill magnetic sealing 3 of the filling 1 of M type ferrite magnetic and enamelled wire coiling group 2, whole formation power inductance.
Embodiment 1: get in mass ratio: Si 35%, and Al 5%, and Fe 60%, mixes to obtain sendust powder; 12% the epoxy resin that adds its quality in sendust powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 2: get in mass ratio: Ni 40%, M
o7.5%, Fe 52.5%, mixes to obtain iron nickel-molybdenum alloy powder; 17% the silicone resin that adds its quality in iron nickel-molybdenum alloy powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 3: get in mass ratio: M
n45%, Zn 10%, and Fe 45%, mixes to obtain ferrimanganic Zinc alloy powder; 22% the phenolic resins that adds its quality in ferrimanganic Zinc alloy powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 4: get in mass ratio: Mg 35%, and Zn 5%, and Fe 60%, mix to obtain iron magnesium-zinc alloy powder; 12% the epoxy resin that adds its quality in iron magnesium-zinc alloy powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 5: get in mass ratio: Ni 40%, and Zn 7.5%, and Fe 52.5%, mix to obtain iron nickel zinc alloy powder; 17% the silicone resin that adds its quality in iron nickel zinc alloy powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 6: get carbonyl iron dust; 22% the phenolic resins that adds its quality in carbonyl iron dust, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Embodiment 7: get iron powder; 17% the phenolic resins that adds its quality in iron powder, magnetic sealing stirs to obtain; Enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, and two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with; M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped, and obtain power inductance.
Claims (2)
1. magnetic sealing Wound-rotor type power inductance, it is characterized in that: this power inductance comprises the filling of M type ferrite magnetic (1), enamelled wire coiling group (2) and magnetic sealing (3), enamelled wire coiling group (2) is arranged on M type ferrite magnetic and fills with in (1), two leading foots of enamelled wire coiling group (2) exceed the filling mouth that M type ferrite magnetic is filled with (1), M type ferrite magnetic is filled with the gap-fill magnetic sealing (3) of (1) and enamelled wire coiling group (2), whole formation power inductance.
2. magnetic sealing Wound-rotor type power inductance according to claim 1, the preparation method who it is characterized in that this power inductance is: enamelled wire coiling group is arranged in the filling of M type ferrite magnetic, two leading foots of enamelled wire coiling group exceed the filling mouth that M type ferrite magnetic is filled with, M type ferrite magnetic is filled with the gap-fill magnetic sealing with enamelled wire coiling group, and after vacuumizing, high temperature or normal temperature cure are shaped; Magnetic sealing adds epoxy resin, silicone resin or phenolic resins to form in metal magnetic, and the addition of epoxy resin, silicone resin or phenolic resins accounts for 12% ~ 22% of metal magnetic quality; Metal magnetic is iron powder, carbonyl iron dust, sendust powder, iron nickel-molybdenum alloy powder, ferrimanganic Zinc alloy powder, iron magnesium-zinc alloy powder or iron nickel zinc alloy powder; The composition of sendust powder, iron nickel-molybdenum alloy powder, ferrimanganic Zinc alloy powder, iron magnesium-zinc alloy powder or iron nickel zinc alloy powder is counted in mass ratio: Si or Ni or M
nor Mg is 35% ~ 45%, Al or M
oor Zn is that 5% ~ 10%, Fe is 45% ~ 60%.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310698769.0A CN103646750A (en) | 2013-12-19 | 2013-12-19 | Magnetic sealing compound winding type power inductor and preparation method thereof |
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| CN201310698769.0A CN103646750A (en) | 2013-12-19 | 2013-12-19 | Magnetic sealing compound winding type power inductor and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971879A (en) * | 2014-05-15 | 2014-08-06 | 易丰达元工程有限公司 | Power source purifier |
| CN114639530A (en) * | 2022-03-24 | 2022-06-17 | 广州市今凯电子有限公司 | Novel inductor and full-sealing glue production method thereof |
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| JP2006041173A (en) * | 2003-12-10 | 2006-02-09 | Sumida Corporation | Magnetic element |
| CN101256878A (en) * | 2007-11-19 | 2008-09-03 | 湖州磁性材料研究所 | Inductive element and manufacturing method thereof |
| CN101752059A (en) * | 2010-01-18 | 2010-06-23 | 深圳顺络电子股份有限公司 | Winding power inductance component and manufacturing method thereof |
| CN201667268U (en) * | 2009-10-27 | 2010-12-08 | 居磁工业股份有限公司 | Hot-pressing combined type magnetic inductance component |
| US20110006870A1 (en) * | 2007-08-31 | 2011-01-13 | Sumida Corporation | Coil Component And Method For Manufacturing Coil Component |
| CN203644498U (en) * | 2013-12-19 | 2014-06-11 | 淮安市鼎新电子有限公司 | Magnetic sealing adhesive wound power inductor |
-
2013
- 2013-12-19 CN CN201310698769.0A patent/CN103646750A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006041173A (en) * | 2003-12-10 | 2006-02-09 | Sumida Corporation | Magnetic element |
| US20110006870A1 (en) * | 2007-08-31 | 2011-01-13 | Sumida Corporation | Coil Component And Method For Manufacturing Coil Component |
| CN101256878A (en) * | 2007-11-19 | 2008-09-03 | 湖州磁性材料研究所 | Inductive element and manufacturing method thereof |
| CN201667268U (en) * | 2009-10-27 | 2010-12-08 | 居磁工业股份有限公司 | Hot-pressing combined type magnetic inductance component |
| CN101752059A (en) * | 2010-01-18 | 2010-06-23 | 深圳顺络电子股份有限公司 | Winding power inductance component and manufacturing method thereof |
| CN203644498U (en) * | 2013-12-19 | 2014-06-11 | 淮安市鼎新电子有限公司 | Magnetic sealing adhesive wound power inductor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103971879A (en) * | 2014-05-15 | 2014-08-06 | 易丰达元工程有限公司 | Power source purifier |
| CN114639530A (en) * | 2022-03-24 | 2022-06-17 | 广州市今凯电子有限公司 | Novel inductor and full-sealing glue production method thereof |
| CN114639530B (en) * | 2022-03-24 | 2022-10-11 | 广州市今凯电子有限公司 | Full-sealing adhesive production method of inductor |
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Application publication date: 20140319 |