CN201829300U - Small-sized planar common mode choke - Google Patents
Small-sized planar common mode choke Download PDFInfo
- Publication number
- CN201829300U CN201829300U CN2010205779090U CN201020577909U CN201829300U CN 201829300 U CN201829300 U CN 201829300U CN 2010205779090 U CN2010205779090 U CN 2010205779090U CN 201020577909 U CN201020577909 U CN 201020577909U CN 201829300 U CN201829300 U CN 201829300U
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- CN
- China
- Prior art keywords
- winding
- common mode
- windings
- copper sheet
- magnetic core
- 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.)
- Expired - Lifetime
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Abstract
The utility model provides a small-sized planar common mode choke which comprises two or more than two copper windings which form a loop and are stacked together. Two magnetic cores wraps the upper part and the lower part of the copper windings, the magnetic cores are lead out from two lead-out ends of each copper winding, pins are welded on the lead-out ends, and insulating strips are inserted between the windings and between the magnetic core and the windings. In the utility model, products with different height can be designed according to height requirements of an enclosure space, a molded pure copper piece can be used as a conductor and can bear higher current requirements, and the insulating strips with high temperature resistance are added among the windings so as to ensure higher insulating performance between the inner part of the winding and the winding.
Description
Technical field
The utility model relates to a kind of plane common mode inductance, especially a kind of small size plane common mode inductance that is used for electric power system and DC/DC converter and flat system.
Background technology
Present most of planar inductor product all is to adopt the flat wire coiling, but flat wire has certain limitation, as be subjected to the process technology limit of flakiness ratio, can't accomplish very wide and very thin, so if the enclosure space height has the requirement of comparison strictness to the product height, there is not good way to go again to reduce with the whole height of the product of lenticular wire coiling.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of low clearance, small size plane common mode inductance are provided, and wherein the insulating trip of all accumulations all is in the same place with magnetic core, forms a unit, becomes as a whole flat common mode inductance.
The technical scheme that provides according to the utility model, described small size plane common mode inductance comprises that two or more copper sheet windings that form the loop are stacked, the copper sheet winding is upper and lower to be coated with two magnetic cores, and two exits of each copper sheet winding are drawn magnetic core, are welded with stitch on the exit; Between winding and the winding, be inserted with insulating trip between magnetic core and the winding.
Described copper sheet winding is embedded in the interior groove of magnetic core.Described stitch is terminal concordant on same horizontal plane.Described two magnetic cores are by combining at contact-making surface viscose glue water.
The utility model has the advantages that:
Low clearance: the product that can design the differing heights dimensional requirement according to the requirement for height of enclosure space;
High power: the fine copper sheet by moulding can bear higher current requirements as conductor;
High insulating property: add the high-temperature insulation sheet between winding layers and guarantee that higher insulation is an energy between winding inside and the winding.
Description of drawings
Fig. 1 is the utility model outline drawing.
Fig. 2 is the utility model assembling schematic diagram.
Fig. 3 is the utility model end perspective view.
Fig. 4 is the utility model electrical connection diagram.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in Figure 1, 2, small size described in the utility model plane common mode inductance comprises: two or more form the copper sheet winding 9 in loop, 10 are stacked, the copper sheet winding is upper and lower to be coated with two magnetic cores 1, two exits of each copper sheet winding are drawn magnetic core 1, are welded with stitch on the exit; Between winding and the winding, be inserted with high-temperature insulation sheet 7 between magnetic core and the winding.High-temperature insulation sheet 7 be used for insulating isolated windings 9 and winding 10, winding 9 and magnetic core 1, winding 10 and magnetic core 1.
As shown in Figure 3, the exit 2 of winding 10, fixedly connected with stitch 13 usefulness tin; The exit 5 of winding 10, fixedly connected with stitch 14 usefulness tin; The exit 6 of winding 9, fixedly connected with stitch 11 usefulness tin; The exit 8 of winding 9, fixedly connected with stitch 12 usefulness tin; Output stitch 11,12 connects with winding 9 exits 6,8 respectively, and fixes with tin; Output stitch 13,14 connects with winding 10 exits 2,5 respectively, and fixes with tin.All stitch is terminal concordant on same horizontal plane.As shown in Figure 4, winding 9 forms the loop by stitch 11,12, and winding 10 forms the loop by stitch 13,14, and two winding current directions are identical.
Winding of the present utility model is piled up by a series of copper sheet windings 9,10 that form the loop and forms, and wherein inserts resistant to elevated temperatures insulating trip 7, insulating trip 7 is contacted with all surface of winding, insulating trip 7 thickness are adjustable, and spacing can be adjusted thereupon between the winding like this, and layer capacitance is just controlled.
Described winding is directly not connect and be welded on the pin, but firm being connected on the actual winding exit 2,5,6,8 all be fitted together with magnetic core set with insulating trip at last again, becomes as a whole flat common mode inductance.Whole inductance has formed a unit.
Winding is to be stamped to form by copper sheet, and guaranteeing has dielectric strength in vertical direction.The utility model assembling process is as follows:
1. the winding 9,10 that builds up of insulating trip and copper sheet has constituted each independent winding;
2. assembling connects on pin 11,12,13, the 14 insertion winding terminals 2,5,6,8, forms a kind of being electrically connected by welding between pin and winding, and assembling is had very high intensity.
3. last, outside magnetic core 1 and above-mentioned winding, the pin set that is connected are fitted together.Copper sheet winding 9,10 is embedded in the groove in the magnetic core 1, as shown in Figure 2.
This element is compared with the coil of existing similar electric capacity and inductance, can reach minimum profile at SMD (surface mount device) fit on.Coil can decide according to application conditions and be preformed, and semi-finished product are preformed, or non-preformed.Independent magnetic core can be by combining at contact-making surface viscose glue water.
The typical core material of inductance has MnZn and nickel zinc, and first-selection is a manganese zinc.
The utility model purpose provides the plane common mode inductance of capacity layer insulation a kind of big capacity electric current and big, specifically, provides offers additional possibilities for carry out more economic manufacturing between winding.By the copper sheet of moulding, can make the requirement of the big electric current of high power according to different power requirements, add the high-temperature insulation sheet again and substitute the surface insulation resin that lenticular wire carries, have higher insulating reliability.
Claims (4)
1. small size plane common mode inductance is characterized in that: comprise that two or more copper sheet windings that form loops are stacked, the copper sheet winding is upper and lower to be coated with two magnetic cores, and two exits of each copper sheet winding are drawn magnetic core, are welded with stitch on the exit; Between winding and the winding, be inserted with insulating trip between magnetic core and the winding.
2. small size as claimed in claim 1 plane common mode inductance is characterized in that described copper sheet winding is embedded in the interior groove of magnetic core.
3. small size as claimed in claim 1 plane common mode inductance is characterized in that described stitch is terminal concordant on same horizontal plane.
4. small size as claimed in claim 1 plane common mode inductance is characterized in that described two magnetic cores are by combining at contact-making surface viscose glue water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205779090U CN201829300U (en) | 2010-10-21 | 2010-10-21 | Small-sized planar common mode choke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205779090U CN201829300U (en) | 2010-10-21 | 2010-10-21 | Small-sized planar common mode choke |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201829300U true CN201829300U (en) | 2011-05-11 |
Family
ID=43967821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205779090U Expired - Lifetime CN201829300U (en) | 2010-10-21 | 2010-10-21 | Small-sized planar common mode choke |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201829300U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103632812A (en) * | 2013-12-14 | 2014-03-12 | 芜湖科伟兆伏电子有限公司 | Heavy-current high-frequency plane inductor and making method thereof |
| CN105144315A (en) * | 2013-07-08 | 2015-12-09 | 株式会社村田制作所 | Coil component |
| DE212015000259U1 (en) | 2014-11-07 | 2017-06-19 | Premo S.L. | Transformer with integrated inductor |
| CN111243814A (en) * | 2020-01-17 | 2020-06-05 | 深圳市铂科新材料股份有限公司 | Copper sheet embedded soft magnetic powder core inductor and preparation method and application thereof |
-
2010
- 2010-10-21 CN CN2010205779090U patent/CN201829300U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105144315A (en) * | 2013-07-08 | 2015-12-09 | 株式会社村田制作所 | Coil component |
| CN103632812A (en) * | 2013-12-14 | 2014-03-12 | 芜湖科伟兆伏电子有限公司 | Heavy-current high-frequency plane inductor and making method thereof |
| CN103632812B (en) * | 2013-12-14 | 2015-11-18 | 芜湖科伟兆伏电子有限公司 | A kind of big current high frequency planar inductance and preparation method thereof |
| DE212015000259U1 (en) | 2014-11-07 | 2017-06-19 | Premo S.L. | Transformer with integrated inductor |
| CN111243814A (en) * | 2020-01-17 | 2020-06-05 | 深圳市铂科新材料股份有限公司 | Copper sheet embedded soft magnetic powder core inductor and preparation method and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110511 |
|
| CX01 | Expiry of patent term |