CN107863222A - A kind of high-power choke coil of flush type and preparation method thereof - Google Patents
A kind of high-power choke coil of flush type and preparation method thereof Download PDFInfo
- Publication number
- CN107863222A CN107863222A CN201711387152.1A CN201711387152A CN107863222A CN 107863222 A CN107863222 A CN 107863222A CN 201711387152 A CN201711387152 A CN 201711387152A CN 107863222 A CN107863222 A CN 107863222A
- Authority
- CN
- China
- Prior art keywords
- coil
- preparation
- choke coil
- enamel
- flush type
- 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
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000004804 winding Methods 0.000 claims abstract description 18
- 238000007711 solidification Methods 0.000 claims abstract description 4
- 230000008023 solidification Effects 0.000 claims abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000011162 core material Substances 0.000 description 13
- 238000005457 optimization Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/045—Fixed inductances of the signal type with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F2017/0093—Common mode choke coil
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F17/00—Fixed inductances of the signal type
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F2017/048—Fixed inductances of the signal type with magnetic core with encapsulating core, e.g. made of resin and magnetic powder
Abstract
The present invention relates to a kind of electronic device, it discloses high-power choke coil of a kind of flush type and preparation method thereof, solve in conventional art that choking-winding structural volume is big, preparation efficiency is low, the problem of being unfavorable for Miniaturization Design and automated production.The high-power choke coil of flush type in the present invention, including enamel-covered wire and ferrocart core, the enamel-covered wire is embedded in ferrocart core, by compressing.The preparation method of the choking-winding, it comprises the following steps：A. enamel-covered wire is selected；B. the coil winding number of turns is determined according to choke inductance amount, and completed coil winding on automatic coil winding machine；C. it will be put in around the coil made in press die, coil be subjected to die cast with ferrocart core；D. the product of die cast is put in baking oven and is sintered solidification.
Description
Technical field
The present invention relates to a kind of electronic device, and in particular to a kind of high-power choke coil of flush type and preparation method thereof.
Background technology
Choking-winding is a common mode disturbances suppression device using ferrocart core magnet ring as magnetic core, and it is identical by two sizes,
Number of turn identical coil is symmetrically wound on same ferrite toroidal magnetic core, forms a four-terminal device, is believed for common mode
It is inhibited number to show big inductance, and the leakage inductance that very little is showed for difference mode signal does not almost work.Chokes
Coil use in balanced circuit can effectively suppression common mode interference signal (thunderous electrical interference), and to the difference of circuit normal transmission
Mould signal is without influence.At present, high-power choke coil is widely used in various electronic equipments, is adopted mostly on conventional choke coil structures
With as shown in figure 1, being formed by the way of enamel-covered wire 1 is wrapped on ferrocart core magnet ring 2；Volume shared by the structure is big, mostly
Using manual threading, efficiency is very low, is unfavorable for product Miniaturization Design and automated production.
The content of the invention
The technical problems to be solved by the invention are：High-power choke coil of a kind of flush type and preparation method thereof is proposed, is solved
Certainly choking-winding structural volume is big in conventional art, and preparation efficiency is low, the problem of being unfavorable for Miniaturization Design and automated production.
The present invention solves the technical scheme that above-mentioned technical problem uses：
A kind of high-power choke coil of flush type, including enamel-covered wire and ferrocart core, the enamel-covered wire are embedded in ferrocart core, are led to
Cross compressing.
As further optimization, the power of the choke coil is more than 30W.
In addition, another object of the present invention, which also resides in, proposes a kind of preparation method of the above-mentioned high-power choke coil of flush type,
It comprises the following steps：
A. enamel-covered wire is selected；
B. the coil winding number of turns is determined according to choke inductance amount, and completed coil winding on automatic coil winding machine；
C. it will be put in around the coil made in press die, coil be subjected to die cast with ferrocart core；
D. the product of die cast is put in baking oven and is sintered solidification.
As further optimization, this method also includes step：
E. the choke coil of preparation is tested by performance requirement.
Optimize as further, in step a, the paste paint layer enamel-covered wire high and wear-resisting from temperature grade.
The beneficial effects of the invention are as follows：
Choke coil is redesigned using coil embedded structure, directly by ferrocart core and coil die cast, takes volume
It is small, it is easy to product Miniaturization Design；Using automatic coil winding machine coiling and press die Die Casting, it is not necessary to artificial coiling behaviour
Make, production efficiency can be improved, be easy to automated production.
Brief description of the drawings
Fig. 1 is the choke coil vertical section structural representation in conventional art；
Fig. 2 is the choke coil vertical section structural representation in the present invention.
Embodiment
The present invention is directed to propose a kind of high-power choke coil of flush type and preparation method thereof, solves choke line in conventional art
Coil structures volume is big, and preparation efficiency is low, the problem of being unfavorable for Miniaturization Design and automated production.
As shown in Fig. 2 the high-power choke coil of flush type in the present invention includes enamel-covered wire 1 and ferrocart core 3, the enamel-covered wire
1 is embedded in ferrocart core 3, compressing.The choke coil of this structure, coil are flush type, first with automatic coil winding machine by coil
Around making, then with press by iron powder core material it is compressing in coil around, after suppressing, by baking, make glue in product
Stick solidifies, and production is completed.So by compacting, ferrocart core is formed a closed magnetic circuit around coil, play and grip
Flow the effect of circle.The performance requirement of choke coil can be changed by the adjustment of compacting tool set.
The preparation method of above-mentioned choke coil comprises the following steps in specific implementation：
A. enamel-covered wire is selected；
In order to improve the reliability of product, the paste paint layer enamel-covered wire (such as QZY-2) high and wear-resisting from temperature grade；
B. the coil winding number of turns is determined according to choke inductance amount, and completed coil winding on automatic coil winding machine；
C. it will be put in around the coil made in press die, coil be subjected to die cast with ferrocart core；
D. the product of die cast is put in baking oven and is sintered solidification.
E. the choke coil of preparation is tested by performance requirement.
The choke coil produced according to above-mentioned preparation method takes small volume, highly low, and power output is bigger (more than 30W),
And choke coil is adapted to automated production, reach raising efficiency, reduce the purpose of cost.
Claims (5)
1. a kind of high-power choke coil of flush type, it is characterised in that including enamel-covered wire and ferrocart core, the enamel-covered wire is embedded in iron
In powder core, by compressing.
2. the high-power choke coil of flush type as claimed in claim 1, it is characterised in that the power of the choke coil is more than 30W.
A kind of 3. preparation method of the high-power choke coil of flush type, for preparing the big work(of flush type as claimed in claim 1 or 2
Rate choke coil, it is characterised in that comprise the following steps：
A. enamel-covered wire is selected；
B. the coil winding number of turns is determined according to choke inductance amount, and completed coil winding on automatic coil winding machine；
C. it will be put in around the coil made in press die, coil be subjected to die cast with ferrocart core；
D. the product of die cast is put in baking oven and is sintered solidification.
4. preparation method as claimed in claim 3, it is characterised in that this method also includes step：
E. the choke coil of preparation is tested by performance requirement.
5. preparation method as claimed in claim 3, it is characterised in that in step a, the high and wear-resisting thickness from temperature grade
Enamelled coating enamel-covered wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387152.1A CN107863222A (en) | 2017-12-20 | 2017-12-20 | A kind of high-power choke coil of flush type and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711387152.1A CN107863222A (en) | 2017-12-20 | 2017-12-20 | A kind of high-power choke coil of flush type and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107863222A true CN107863222A (en) | 2018-03-30 |
Family
ID=61707255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711387152.1A Pending CN107863222A (en) | 2017-12-20 | 2017-12-20 | A kind of high-power choke coil of flush type and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107863222A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452252A1 (en) * | 1974-11-04 | 1976-05-06 | Standard Elektrik Lorenz Ag | Noise suppression choke coil - has ferrite body with cavity for windings filled with ferrite powder and sealed with casting resin |
| CN1941224A (en) * | 2005-09-28 | 2007-04-04 | 积进工业株式会社 | Manufacturing method for choke coil |
| US20070257759A1 (en) * | 2005-11-04 | 2007-11-08 | Delta Electronics, Inc. | Noise filter and manufacturing method thereof |
| CN203013434U (en) * | 2012-12-26 | 2013-06-19 | 王向群 | Power inductor |
| CN104715888A (en) * | 2013-12-12 | 2015-06-17 | 常州银河创新磁电有限公司 | Magnet ring choking coil |
-
2017
- 2017-12-20 CN CN201711387152.1A patent/CN107863222A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2452252A1 (en) * | 1974-11-04 | 1976-05-06 | Standard Elektrik Lorenz Ag | Noise suppression choke coil - has ferrite body with cavity for windings filled with ferrite powder and sealed with casting resin |
| CN1941224A (en) * | 2005-09-28 | 2007-04-04 | 积进工业株式会社 | Manufacturing method for choke coil |
| US20070257759A1 (en) * | 2005-11-04 | 2007-11-08 | Delta Electronics, Inc. | Noise filter and manufacturing method thereof |
| CN203013434U (en) * | 2012-12-26 | 2013-06-19 | 王向群 | Power inductor |
| CN104715888A (en) * | 2013-12-12 | 2015-06-17 | 常州银河创新磁电有限公司 | Magnet ring choking coil |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180330 |
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| RJ01 | Rejection of invention patent application after publication |