CN204558189U - Common-mode filter - Google Patents
Common-mode filter Download PDFInfo
- Publication number
- CN204558189U CN204558189U CN201520140142.8U CN201520140142U CN204558189U CN 204558189 U CN204558189 U CN 204558189U CN 201520140142 U CN201520140142 U CN 201520140142U CN 204558189 U CN204558189 U CN 204558189U
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- China
- Prior art keywords
- electrode terminal
- common
- magnetic core
- mode filter
- flange portion
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Abstract
The utility model openly provides a kind of common-mode filter, it comprises magnetic core and is wrapped in the enamelled wire on magnetic core, described magnetic core comprises centerbody and is positioned at first flange portion of centerbody one end and the second flange portion of the relative other end, described magnetic core also comprises the insulating barrier being arranged on first, second flange portion lower surface and the electrode terminal being arranged at insulating barrier lower surface, and described enamelled wire is welded in corresponding electrode terminal respectively.
Description
[technical field]
The utility model relates to a kind of common-mode filter, particularly relates to insulating barrier and takes shape in structure on magnetic core.
[background technology]
The Chinese patent notification number CN1252747 that on April 19th, 2006 is announced, the some enamelled wires that the patent discloses that the nickel zinc magnetic core that a kind of common-mode filter comprises an I shape and be wrapped on magnetic core, one end of magnetic core is provided with the first flange portion and the relative other end is provided with the second flange portion, described each flange portion is provided with electrode terminal, and described enamelled wire is welded on corresponding conducting terminal respectively.Magnetic core is nickel zinc material, and permeability is low, causes the inductance value of product not easily significantly to promote.
The Chinese patent notification number CN2651911 that on October 27th, 2004 is announced, the patent discloses that a kind of common-mode filter comprises one group of MnZn magnetic core, the drum stand be arranged on magnetic core, the electrode terminal that is wrapped in the enamelled wire on drum stand and is arranged on drum stand, described enamelled wire is electrically connected with corresponding electrode terminal.Because MnZn material is electric conducting material, therefore conducting terminal is not directly arranged on magnetic core, need arrange framework in addition, this complex structure, and volume becomes large.
Common-mode filter or the magnetic core permeability of prior art are low, or complex structure, and volume is larger.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of common-mode filter, and the inductance value that its magnetic core permeability height increases product simplifies the structure simultaneously, smaller volume.
For solving the problems of the technologies described above, the utility model can adopt following technical scheme: a kind of common-mode filter, it comprises magnetic core and is wrapped in the enamelled wire on magnetic core, described magnetic core comprises centerbody and is positioned at first flange portion of centerbody one end and the second flange portion of the relative other end, described magnetic core also comprises the insulating barrier being arranged on first, second flange portion lower surface and the electrode terminal being arranged at insulating barrier lower surface, and described enamelled wire is welded in corresponding electrode terminal respectively.
Compared to prior art, the utility model has the advantage of: electrode terminal Direct Electroplating is electrical connected with the enamelled wire be wrapped on magnetic core by the utility model shaping insulating barrier on the MnZn magnetic core with high magnetic permeability on this insulating barrier, thus the inductance value adding product simplifies product structure simultaneously.
[accompanying drawing explanation]
Fig. 1 is the stereogram meeting the utility model common-mode filter.
Fig. 2 is the exploded view of the common-mode filter shown in Fig. 1.
[embodiment]
As shown in Figure 1-2, the utility model common-mode filter 100, it comprise an I shape magnetic core 10, paste at the cover plate 20 of magnetic core 10 upper surface, the some enamelled wires 30 be wrapped on magnetic core 10.Cover plate 20 and magnetic core 10 utilize together with epoxide-resin glue pastes.Described magnetic core 10 comprises centerbody 11, be positioned at first flange portion 12 of centerbody 11 one end and be positioned at the second flange portion 13 of centerbody 11 other end.The upper and lower surface of described first flange portion 12 and the second flange portion 13 all protrudes from centerbody 11, and described enamelled wire 30 is wound on centerbody 11.Centerbody 11 and first, second flange portion 12,13 of described magnetic core 10 are made up of MnZn material, because the permeability of MnZn material is high, and like this can the inductance value of significantly improving product.Described magnetic core 11 also comprises the insulating barrier 14 that is molded over first, second flange portion 12,13 lower surface and the electroforming electrode terminal 15 at insulating barrier 14 lower surface, the surface of this electrode terminal 15 described is provided with groove 150(and also can not arranges groove 150), the end weld part of described enamelled wire 30 is contained in groove 150, is connected with electrode terminal 15 spot welding.Due to MnZn material be conductive material therefore electrode terminal 15 be not directly arranged on first, second flange portion 12,13 that MnZn material makes, therefore a shaping insulating barrier 14 in first, second flange portion 12,13, and the coplanarity of insulating barrier 14 is higher than first, second flange portion 12,13 of MnZn material.The dual-side of first, second flange portion 12,13 described is respectively equipped with a breach 16, the dual-side place of insulating barrier 14 extends upward protuberance 140, this protuberance 140 is contained in breach 16, and insulating barrier 14 is not easily come off from first, second flange portion 12,13.
The insulating barrier 14 of described first flange portion 12 is provided with the first electrode terminal 151, second electrode terminal 152, third electrode terminal 153 and the 4th electrode terminal 154.The first fluting 171 is provided with between first electrode terminal 151 and the second electrode terminal 152, the second fluting 172 is provided with between second electrode terminal 152 and third electrode terminal 153, be provided with the 3rd between third electrode terminal 153 and the 4th electrode terminal 154 and slot 173, described 3rd fluting 173 is less than the first fluting 171, first fluting 171 and is less than the second fluting 172.The insulating barrier 14 of described second flange portion 13 is provided with the 5th electrode terminal 155, the 6th electrode terminal 156, the 7th electrode terminal 157 and the 8th electrode terminal 158.Be provided with the 4th between 5th electrode terminal 155 and the 6th electrode terminal 156 to slot and to be provided with the 5th between the 174, six electrode terminal 156 and the 7th electrode terminal 157 and to slot and be provided with the 6th between the 175, seven electrode terminal 157 and the 8th electrode terminal 158 and slot 176.6th fluting 176 is less than the 4th fluting the 174, four fluting 174 and is less than the 5th fluting 175.Described first fluting 171 and the 4th slot 174 identical, second slot 172 and the 5th slot 175 identical, the 3rd slot 173 and the 6th slot 176 identical.Described first, second, third, fourth, the 5th, the 6th, the 7th, the 8th electrode terminal 151,152,153,154,155,156,157,158 is arranged in the counterclockwise direction.
Described enamelled wire 30 comprises primary coil 31 and secondary coil 32.Described primary coil 31 is welded on the electrode terminal 15 of the same side of first, second flange portion 12,13 respectively, and secondary coil 32 is welded on the opposite side electrode terminal 15 relative with primary coil respectively.Be described in detail as follows: described primary coil 31 comprises the first enamelled wire 311 and the second enamelled wire 312.First 311 liang, enamelled wire end is provided with the first weld part 311a and the second weld part 311b, and the first weld part 311a welds with the first electrode terminal 151, and the second weld part 311b welds with the 7th electrode terminal 157.Second 312 liang, enamelled wire end is provided with the 3rd weld part 312a and the 4th weld part 312b, and the 3rd weld part 312a welds with the second electrode terminal 152, and the 4th weld part 312b welds with the 8th electrode terminal 158.Described secondary coil 32 comprises the 3rd enamelled wire 321 and the 4th enamelled wire 322.3rd 321 liang, enamelled wire end is provided with the 5th weld part 321a and the 6th weld part 321b, and the 5th weld part 321a welds with third electrode terminal 153, and the 6th weld part 321b welds with the 5th electrode terminal 155.4th 322 liang, enamelled wire end is provided with the 7th weld part 322a and the 8th weld part 322b, and the 7th weld part 322a welds with the 4th electrode terminal 154, and the 8th weld part 322b welds with the 6th electrode terminal 156.
Electrode terminal 15 is electroplated onto on insulating barrier 14 by making a shaping layer insulating 14 on the magnet of MnZn material by the utility model common-mode filter 100 again, by the structure of the material and magnetic core 10 of improving magnet, the inductance value of product is significantly promoted, and the structure of common-mode filter 100 is simple.
Claims (9)
1. a common-mode filter, it comprises magnetic core and is wrapped in the enamelled wire on magnetic core, described magnetic core comprises centerbody and is positioned at first flange portion of centerbody one end and the second flange portion of the relative other end, it is characterized in that: described magnetic core also comprises the insulating barrier being molded over first, second flange portion lower surface and the electrode terminal being arranged at insulating barrier lower surface, described enamelled wire is welded in corresponding electrode terminal respectively.
2. common-mode filter as claimed in claim 1, is characterized in that: described magnetic core is made up of MnZn material.
3. common-mode filter as claimed in claim 2, is characterized in that: first, second flange portion described is respectively equipped with a breach, and described insulating barrier is provided with a protuberance, and described protuberance is contained in breach.
4. common-mode filter as claimed in claim 2, it is characterized in that: described enamelled wire comprises primary coil and secondary coil, described primary coil is welded in the electrode terminal of first, second flange portion the same side, and secondary coil is welded in the electrode terminal of first, second flange portion opposite side.
5. common-mode filter as claimed in claim 4, it is characterized in that: described primary coil comprises the first enamelled wire and the second enamelled wire, secondary coil comprises the 3rd enamelled wire and the 4th enamelled wire.
6. common-mode filter as claimed in claim 1, is characterized in that: described electrode terminal is that plating is formed at insulating barrier lower surface.
7. common-mode filter as claimed in claim 1, is characterized in that: described enamelled wire and electrode terminal are that spot welding is connected.
8. common-mode filter as claimed in claim 1, it is characterized in that: described common-mode filter also comprises a cover plate, the magnetic core of described cover plate and insulating barrier opposite side is pasted.
9. common-mode filter as claimed in claim 8, is characterized in that: described cover plate and magnetic core utilize epoxide-resin glue to paste.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520140142.8U CN204558189U (en) | 2015-03-12 | 2015-03-12 | Common-mode filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520140142.8U CN204558189U (en) | 2015-03-12 | 2015-03-12 | Common-mode filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204558189U true CN204558189U (en) | 2015-08-12 |
Family
ID=53833273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520140142.8U Expired - Fee Related CN204558189U (en) | 2015-03-12 | 2015-03-12 | Common-mode filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204558189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962560A (en) * | 2018-09-07 | 2018-12-07 | 广州金升阳科技有限公司 | Micropower modular power source of the chip around line transformer and its manufacturing method and comprising the transformer |
| CN110098817A (en) * | 2018-01-29 | 2019-08-06 | 意法半导体(图尔)公司 | Common-mode filter |
| JP2020519033A (en) * | 2017-05-12 | 2020-06-25 | モダ−イノチップス シーオー エルティディー | choke coil |
-
2015
- 2015-03-12 CN CN201520140142.8U patent/CN204558189U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020519033A (en) * | 2017-05-12 | 2020-06-25 | モダ−イノチップス シーオー エルティディー | choke coil |
| CN110098817A (en) * | 2018-01-29 | 2019-08-06 | 意法半导体(图尔)公司 | Common-mode filter |
| CN110098817B (en) * | 2018-01-29 | 2024-05-28 | 意法半导体(图尔)公司 | Common mode filter |
| CN108962560A (en) * | 2018-09-07 | 2018-12-07 | 广州金升阳科技有限公司 | Micropower modular power source of the chip around line transformer and its manufacturing method and comprising the transformer |
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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: 20150812 Termination date: 20170312 |