CN203300366U - Common-mode filter inductor - Google Patents
Common-mode filter inductor Download PDFInfo
- Publication number
- CN203300366U CN203300366U CN2013203087690U CN201320308769U CN203300366U CN 203300366 U CN203300366 U CN 203300366U CN 2013203087690 U CN2013203087690 U CN 2013203087690U CN 201320308769 U CN201320308769 U CN 201320308769U CN 203300366 U CN203300366 U CN 203300366U
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- China
- Prior art keywords
- common mode
- mode filtering
- magnet
- center pillar
- pedestal
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- 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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- 230000001681 protective effect Effects 0.000 claims abstract description 31
- 238000004804 winding Methods 0.000 claims abstract description 29
- 239000002184 metal Substances 0.000 claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 27
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000035699 permeability Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 2
- 239000000758 substrate Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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Abstract
本实用新型公开了一种共模滤波电感，包括基座、磁体、线圈，所述的基座的中心点向上延伸一个中柱，中柱镂空并在中轴线上留有槽口；沿中柱立体圆周180°平行于槽口延伸设置两个突出；中柱的左右两侧平行于槽口各设置一个弧形防护板；中柱的上下两侧各设有弧形挡板；弧形防护板与弧形挡板之间有引线卡槽；所述的线圈绕制在磁体上形成电感线圈，两绕组与磁体间的中空穿套在基座上的中柱上进行固定，绕组引线缠绕在金属端子上构成电气连接。本实用新型工艺简单，安规防护良好，能兼容立式及卧式安装方式。
The utility model discloses a common-mode filter inductor, which comprises a base, a magnet and a coil. The central point of the base extends upwards to a central column, which is hollowed out and has a notch on the central axis; along the central column The three-dimensional circumference is 180° parallel to the notch to extend two protrusions; the left and right sides of the center column are respectively provided with an arc-shaped protective plate parallel to the notch; the upper and lower sides of the center column are respectively equipped with arc-shaped baffles; the arc-shaped protective plate There is a lead wire slot between it and the arc-shaped baffle; the coil is wound on the magnet to form an inductance coil, the hollow between the two windings and the magnet is fixed on the center column on the base, and the winding lead wire is wound on the metal The electrical connection is formed on the terminal. The utility model has simple process, good safety protection, and can be compatible with vertical and horizontal installation methods.
Description
Technical field
The utility model relates to filter inductor, applies to specifically particularly a kind of common mode filtering inductance of modular power source of Switching Power Supply.
Background technology
In recent years, the common mode filtering inductance, as the protective device of electromagnetic compatibility, extensively applies in the middle of various electronic products.Particularly along with the development of power supply product high frequency, miniaturization, common mode filtering inductance itself, as the safety device, needs constantly to optimize at volume size and configuration aspects.
Existing common mode filtering inductance, normally on a magnet ring, separately be wound around two groups of number of turn coil windings identical, single spin-echo and formed inductance coil, and at middle spaced winding barricade or the strapping of two windings or inlay the modes such as insulating barrier and carry out the safety distance protection, then utilize the plug-in unit stitch of the lead-in wire of winding as the common mode filtering inductance, owing to being subjected to wire diameter softer, cause the stitch spacing irregular, during plug-in mounting, just be difficult to position.So also have, inductance coil is installed on the pedestal with metal terminal, then with epoxy resin, inductance coil and pedestal is adhesively fixed, utilize the metal terminal spacing to carry out location and installation, but will inevitably increase like this height of common mode filtering inductance.Be exactly in addition when the common mode filtering inductance is installed on circuit substrate, for guaranteeing and the safety distance of other devices, need to put in the outside of common mode filtering inductance insulation shell or heat-shrinkable T bush.Simultaneously, existing common mode filtering inductance pedestal generally all only has fixing a kind of mounting means, can't carry out flexibly the mounting means adjustment according to position and product space that the PCB circuit board components is put.Generally speaking, existing common mode filtering inductance, exist the manufacturing process complexity, and mounting means is single, can't realize the shortcomings such as miniaturization.
Summary of the invention
It is simple that the utility model provides a kind of technique, and safety protection is good, can be compatible vertical and the miniaturization common mode filtering inductance of horizontal mounting means.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of common mode filtering inductance, comprise pedestal, magnet, coil,
The central point of described pedestal extends upward a center pillar, and the center pillar hollow out also leaves notch on axis; Along 180 ° of the three-dimensional circumference of center pillar be parallel to notch extend arrange two outstanding; The left and right sides of center pillar is parallel to notch an arc protective plate respectively is set; The both sides up and down of center pillar respectively are provided with curved baffle; Leaded draw-in groove between arc protective plate and curved baffle; Described coil winding forms inductance coil on magnet, the hollow between two windings and magnet is set on the center pillar on pedestal and is fixed, and winding leads is wrapped on metal terminal and forms electrical connection.
Preferential, described metal terminal is vertical installation on pedestal, and metal terminal is pegged graft and is fixed in an end of two arc protective plate homonymies; Further, between the metal terminal of each arc protective plate one end, be provided with dividing plate.
Preferential, described metal terminal is horizontal installation on pedestal, at bottom and the opposing parallel position of two arc protective plates of pedestal, respectively is provided with respectively a boss, and the both sides of each boss are fixed in described metal terminal grafting.
Further, the same side of described two arc protective plates respectively is provided with the draw-in groove be used to the insulating trip of pegging graft.
Further, described center pillar, arc protective plate, the height of curved baffle is consistent.
Further, described magnet is the magnet of the closed surface with high permeability with insulating coating.
Further, described coil be that two groups of number of turns equate, direction of winding is opposite, the enamelled wire winding of coiling separately.
By said structure and scheme, the beneficial effects of the utility model are:
1, because two windings are lived in the outstanding isolation of adopting oval center pillar on pedestal, reduced the extra safety protection such as barricade, band, partition, reduce common mode filtering inductance manufacture difficulty and technique.
2,, by being fixed between pedestal center pillar and inductance coil hollow, can effectively reduce whole height and the thickness of common mode filtering inductance.
3, pedestal arc protective plate and curved baffle can form the structure that multiaspect is surrounded, and can guarantee the safety distance between coil and other devices of PCB substrate.
4, only need a mold moulding expense, pedestal can be realized vertical or horizontal installation, is conducive to the space that utilizes of PCB substrate.
The accompanying drawing explanation
The schematical top view of Fig. 1 common mode filtering inductance described in the utility model pedestal;
The bottom schematic view of Fig. 2 common mode filtering inductance described in the utility model pedestal;
The vertical scheme of installation of Fig. 3 common mode filtering inductance described in the utility model;
The horizontal scheme of installation of Fig. 4 common mode filtering inductance described in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
A kind of common mode filtering inductance, assembled by pedestal, magnet, coil, and magnet and coil form inductance coil, then form the common mode filtering inductance with the pedestal assembling.Concretely, as shown in Figure 1, the central point of pedestal 1 extends upward a center pillar 10, and center pillar 10 hollow outs also leave notch 101, the about 0.5mm of width of rebate on axis; Along 180 ° of the three-dimensional circumference of center pillar 10, be parallel to the notch extension projection 102 and projection 103 are set, width >=the 2.5mm of projection 102 and projection 103, its purpose is, after inductance coil wears center pillar 10, by projection 102 and projection 103, two windings are kept apart, and guarantee that the inboard two winding wire rods of magnet do not slide and touch together, and electric clearance is not less than a kind of so rigid physical separation of 2.0mm, replaced original barricade or strapping or inlayed insulating barrier, can simplify the manufacturing process of inductance; Center pillar 10 line bilateral symmetry centered by notch 101 is provided with arc protective plate 12 and arc protective plate 13, like this from structure, just formed with three around cavity, inductance coil is placed in cavity can play effective protection; The centre of arc protective plate 12 and arc protective plate 13 is provided with curved baffle 14 and curved baffle 15, and the effect of curved baffle is to prevent that the two winding wire rods in the magnet outside are loose and touch together; On the arc protective plate 12 of close baffle plate 14 1 sides and arc protective plate 13, be provided with insulating trip draw-in groove 122 and draw-in groove 132, its objective is that common mode filtering inductance of the present utility model is when adopting horizontal installation, if because spatial limitation causes the safety distance of installation site and PCB substrate too near, the one piece of insulating trip that increases between draw-in groove 122 and draw-in groove 132 that can be extra carries out isolating and protecting; Arc protective plate 12 and arc protective plate 13 near baffle plate 15 each plug-in mountings of side two metal terminals for vertical mounting means 16, between two metal terminals, be respectively equipped with dividing plate 121 and dividing plate 131, the effect of dividing plate 121 and dividing plate 131 is to prevent that metal terminal from having Lian Xi and short circuit phenomenon when wicking; 4 wire lead slot 15a～15d are arranged between arc protective plate and curved baffle, and the effect of this wire lead slot is that the lead-in wire of inductance coil can be connected on the metal terminal of base bottom by this wire lead slot when common mode inductance adopts horizontal installation; Preferably, center pillar 10, arc protective plate 12,13, and the height of curved baffle 14,15 be consistent.
The structure of pedestal 1 bottom as shown in Figure 2, arranges a boss 11a with the parallel position of arc protective plate 12, and the parallel position opposing with arc protective plate 13 arranges a boss 11b, and the height of preferred two boss is coplanar.At the two ends of boss 11a and boss 11b, be provided with a metal terminal plug-in opening position 17, while its objective is as horizontal installation, but the plug-in mounting metal terminal is electrically connected.The centre of bottom be provided with center pillar 10 concentric engrave hole 104, be convenient to the processing and forming of pedestal 1.
Common mode filtering inductance described in the utility model, the preferred magnet ring 2 of the closed surface with high permeability with insulating coating that adopt; Adopt that the magnet ring automatic threader process on magnet ring that two groups of number of turns equate, direction of winding is opposite, enamelled wire winding 31 separately coiling and winding 32 formation inductance coils, and, by the parameter setting of plant equipment, can effectively specify the original position of coil windings and the spacing >=2.5mm between two windings.The structure of pedestal preferably, on center pillar, the rectilineal interval of projection 102 and projection 103 is slightly less than the internal diameter of selected magnet ring, but the minimum diameter greater than line chartered steamer profile after the inductance coil coiling, the air line distance that baffle plate 14 and baffle plate are 15 is slightly larger than the external diameter of selected magnet ring, but the maximum outside diameter of line chartered steamer profile after winding the line less than inductance coil; When inductance coil is set on the pedestal center pillar, the projection difference screens of center pillar is between two line bags of inductance coil inboard, when can assembling interference to inductance coil, realizes in the notch 101 of center pillar buffering, curved baffle is positioned in respectively between two line bags of inductance coil inboard, in the location that guarantees between inductance coil and pedestal, by the isolation screens of projection and curved baffle, make between coil windings to meet the safety distance of design.
One of embodiment is: winding leads when metal terminal on two arc protective plates is connected, thereby form a kind of common mode inductance that can carry out vertical installation, as shown in Figure 3.
Two of embodiment is: when winding leads is connected with the metal terminal of two boss sides, thereby form, a kind ofly can carry out horizontally-mounted common mode inductance, as shown in Figure 4.
Execution mode of the present utility model is not limited to this; according to foregoing of the present utility model; utilize ordinary skill knowledge and the customary means of this area; do not breaking away under the above-mentioned basic fundamental thought of the utility model prerequisite; the utility model can also be made modification, replacement or the change of other various ways, within all dropping on the utility model rights protection scope.
Claims (8)
1. a common mode filtering inductance, comprise pedestal, magnet, coil, it is characterized in that: the central point of described pedestal extends upward a center pillar, and the center pillar hollow out also leaves notch on axis; Along 180 ° of the three-dimensional circumference of center pillar be parallel to notch extend arrange two outstanding; The left and right sides of center pillar is parallel to notch an arc protective plate respectively is set; The both sides up and down of center pillar respectively are provided with curved baffle; Leaded draw-in groove between arc protective plate and curved baffle; Described coil winding forms inductance coil on magnet, the hollow between two windings and magnet is set on the center pillar on pedestal and is fixed, and winding leads is wrapped on metal terminal and forms electrical connection.
2. common mode filtering inductance according to claim 1, it is characterized in that: described metal terminal is vertical installation on pedestal, and metal terminal is pegged graft and is fixed in an end of two arc protective plate homonymies.
3. common mode filtering inductance according to claim 2, is characterized in that: between the metal terminal of each arc protective plate one end, be provided with dividing plate.
4. common mode filtering inductance according to claim 1, it is characterized in that: described metal terminal is horizontal installation on pedestal, bottom and the opposing parallel position of two arc protective plates at pedestal respectively are provided with respectively a boss, and described metal terminal is pegged graft and is fixed in the both sides of each boss.
5. common mode filtering inductance according to claim 4, it is characterized in that: the same side of described two arc protective plates respectively is provided with the draw-in groove be used to the insulating trip of pegging graft.
6. common mode filtering inductance according to claim 1, it is characterized in that: described center pillar, arc protective plate, the height of curved baffle is consistent.
7. common mode filtering inductance according to claim 1 is characterized in that: described magnet is the magnet of the closed surface with high permeability with insulating coating.
8. common mode filtering inductance according to claim 1 is characterized in that: described coil is that two groups of number of turns equate, direction of winding is opposite, the enamelled wire winding of coiling separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203087690U CN203300366U (en) | 2013-05-31 | 2013-05-31 | Common-mode filter inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203087690U CN203300366U (en) | 2013-05-31 | 2013-05-31 | Common-mode filter inductor |
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| Publication Number | Publication Date |
|---|---|
| CN203300366U true CN203300366U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203087690U Expired - Lifetime CN203300366U (en) | 2013-05-31 | 2013-05-31 | Common-mode filter inductor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134515A (en) * | 2014-07-25 | 2014-11-05 | 西安空间无线电技术研究所 | Spatial high-power inductor, and preparation method and mounting method of inductor |
| CN104377008A (en) * | 2014-12-12 | 2015-02-25 | 绵阳市容富电子科技有限公司 | PFC common mode inductor |
| CN105185509A (en) * | 2015-09-30 | 2015-12-23 | 广东威灵电机制造有限公司 | Inductor |
| CN105990014A (en) * | 2015-03-16 | 2016-10-05 | 东京零件工业股份有限公司 | Line filter |
| CN107146692A (en) * | 2017-07-12 | 2017-09-08 | 无锡晶磊电子有限公司 | High frequency three-phase reactor |
| CN115410808A (en) * | 2022-10-11 | 2022-11-29 | 贵阳顺络迅达电子有限公司 | High-reliability fixed common-mode filter inductor and manufacturing method thereof |
-
2013
- 2013-05-31 CN CN2013203087690U patent/CN203300366U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134515A (en) * | 2014-07-25 | 2014-11-05 | 西安空间无线电技术研究所 | Spatial high-power inductor, and preparation method and mounting method of inductor |
| CN104134515B (en) * | 2014-07-25 | 2016-06-01 | 西安空间无线电技术研究所 | A kind of space large power, electrically sensor and its preparation method and installation method |
| CN104377008A (en) * | 2014-12-12 | 2015-02-25 | 绵阳市容富电子科技有限公司 | PFC common mode inductor |
| CN105990014A (en) * | 2015-03-16 | 2016-10-05 | 东京零件工业股份有限公司 | Line filter |
| CN105990014B (en) * | 2015-03-16 | 2019-11-01 | 东京零件工业股份有限公司 | Line filter |
| CN105185509A (en) * | 2015-09-30 | 2015-12-23 | 广东威灵电机制造有限公司 | Inductor |
| CN105185509B (en) * | 2015-09-30 | 2018-06-05 | 广东威灵电机制造有限公司 | Inductor |
| CN107146692A (en) * | 2017-07-12 | 2017-09-08 | 无锡晶磊电子有限公司 | High frequency three-phase reactor |
| CN107146692B (en) * | 2017-07-12 | 2018-11-30 | 无锡晶磊电子有限公司 | High frequency three-phase reactor |
| CN115410808A (en) * | 2022-10-11 | 2022-11-29 | 贵阳顺络迅达电子有限公司 | High-reliability fixed common-mode filter inductor and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131120 |
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| CX01 | Expiry of patent term |