CN202771893U - Multi-groove line filter - Google Patents
Multi-groove line filter Download PDFInfo
- Publication number
- CN202771893U CN202771893U CN 201220359287 CN201220359287U CN202771893U CN 202771893 U CN202771893 U CN 202771893U CN 201220359287 CN201220359287 CN 201220359287 CN 201220359287 U CN201220359287 U CN 201220359287U CN 202771893 U CN202771893 U CN 202771893U
- Authority
- CN
- China
- Prior art keywords
- coil
- coiling
- bobbin
- down support
- hold
- 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 - Fee Related
Links
Images
Landscapes
- Filters And Equalizers (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The utility model discloses a multi-groove line filter which comprises a first coil, a second coil, a hollow winding pipe with a through hole, a closed magnetic circuit magnetic element in a shape like a Chinese character 'ri' and a fixed support. A middle column magnetic foot of the magnetic element can penetrate into the through hole, and the magnetic element and the winding pipe are fixed on the fixed support. The winding pipe is provided with a plurality of separation plates in sequence along the axial direction. A winding groove is formed between every two adjacent separation plates. The first coil and the second coil can continuously wind in the winding grooves. Four terminals are arranged on four corners of the fixed support, and two line ends of the first coil and two line ends of the second coil are respectively connected with two terminals of the fixed support. The multi-groove line filter has the advantages of being small in size, high in inductance value, and small in pulse attenuation value, and capable of effectively restraining common mode noises generated by a broadband, and winding the coils in separated groove mode, and the like.
Description
Technical field
The utility model relates to a kind of filter, specifically relates to a kind of multiple-grooved line filter, is applicable to Switching Power Supply, AC fills orchestration, charger and various electronic equipment.
Background technology
In many electronic equipments, its circuit or device itself all can produce the electromagnetic interference of some, particularly electronic equipment tends to miniaturization gradually, a plurality of electronic components are closely by being crowded together, electromagnetic interference problem more easily occurs, and this electronic equipment produces the normal operation that excessive electromagnetic interference can be disturbed other electronic equipments on every side, perhaps produces the phase mutual interference with other electronic installations.Filter, it is a kind of jamming incoherent signal that is used for eliminating, improve the electronic device of signal quality, can realize the frequency of characteristic frequency or the frequency beyond this frequency are carried out effective filtering, at present, filter is widely used in Switching Power Supply, AC fills in orchestration, charger and the various electronic equipment, but, along with electronic equipment tends to miniaturization gradually, volume requirement to line filter is also more and more harsher, particularly when the wideband signal, easily produce common-mode noise, therefore little in the urgent need to some volumes and can the establishment wideband produce the filter of common-mode noise.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model proposes a kind of multiple-grooved line filter, have that volume is little, inductance value is high, the impulse attenuation amount is little, and coil divides the groove coiling, and the establishment wideband produces the multiple advantages such as common mode noise.
The technical solution of the utility model is achieved in that
A kind of multiple-grooved line filter, comprise the first coil, the second coil, hollow bobbin with through hole, day font closed magnetic circuit magnetic core and hold-down support, the center pillar magnetic pin of described magnetic core can penetrate described through hole, described magnetic core and described bobbin are fixed on the described hold-down support, described bobbin is provided with several dividing plates vertically successively, consist of the coiling groove between adjacent two dividing plates, described the first coil and the second coil can continuous reeling in described coiling groove, four jiaos are provided with four terminals on the described hold-down support, and two line ends of described the first coil are connected with the two-terminal of described hold-down support respectively with two line ends of described the second coil.
As further improvement of the utility model, the center pillar magnetic pin of described magnetic core can penetrate described perforation pore structure and be, described hollow bobbin is that two semi-circular coiling pipe fittings form by the cross section, and described two coiling pipe fittings mutually dock and are located by connecting.
As further improvement of the utility model, the structure that described bobbin is provided with several dividing plates vertically successively is: the axial two ends of described bobbin are provided with the first dividing plate, the middle part is provided with second partition, are provided with successively several the 3rd dividing plates between described the first dividing plate and the second partition.
As further improvement of the utility model, described the first coil and the second coil continuously symmetry are wound on described coiling groove inner structure and are: described second partition is provided with the coiling through hole, and described the first coil and described the second coil can pass described coiling through hole continuous reeling between some coiling grooves.
As further improvement of the utility model, two line ends of described the first coil with two line ends of described the second coil with the structure that the two-terminal of described hold-down support is connected are respectively: described hold-down support is provided with several metallic channels, and two line ends of described the first coil can pass described metallic channel with two line ends of the second coil and be connected with described terminal.
As further improvement of the utility model, using direction as benchmark, described coiling groove is a kind of during along continuous straight runs is arranged successively and vertically arranged successively, and described terminal be a kind of in vertical and the parallel described bobbin axis.
The beneficial effects of the utility model are: by wear the through hole into bobbin at the center pillar magnetic of magnetic core, magnetic core and bobbin are fixed on the hold-down support, bobbin is provided with several dividing plates vertically successively, consist of the coiling groove between adjacent two dividing plates, the first coil and the continuous symmetry of the second coil are wound on the design in the coiling groove, formed along bobbin and axially formed several a plurality of grooves of arranging successively, coil divides the structure of groove coiling, this structure can produce common mode noise by the establishment wideband, in addition, the utility model also has simple in structure, is convenient to implement volume little, the characteristics such as inductance value is high, and the impulse attenuation amount is little.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model plan structure schematic diagram (removing bearing and half magnetic core);
Fig. 3 is A-A direction structure schematic diagram (removal dividing plate) among the utility model Fig. 2.
By reference to the accompanying drawings, make the following instructions:
1---first coil 2---the second coil
3---bobbin 31---through hole
4---magnetic core 5---hold-down support
51---terminals 61---the first dividing plate
62---second partitions 63---the 3rd dividing plate
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, a kind of multiple-grooved line filter, comprise the first coil 1, the second coil 2, hollow bobbin 3 with through hole 31, day font closed magnetic circuit magnetic core 4 and hold-down support 5, the center pillar magnetic pin of described magnetic core can penetrate described through hole, described magnetic core and described bobbin are fixed on the described hold-down support, described bobbin is provided with several dividing plates vertically successively, consist of the coiling groove between adjacent two dividing plates, described the first coil and the second coil can continuous reeling in described coiling groove, like this, several a plurality of grooves of arranging have successively axially been formed along bobbin, the first coil and the second coil divide the groove coiling, can produce common mode noise by the establishment wideband, four jiaos are provided with four terminals 51 on the described hold-down support, and two line ends of described the first coil are connected with the two-terminal of described hold-down support respectively with two line ends of described the second coil.
Preferably, the center pillar magnetic pin of described magnetic core can penetrate described perforation pore structure and be, described hollow bobbin is that two semi-circular coiling pipe fittings form by the cross section, and described two coiling pipe fittings mutually dock and are located by connecting.
Preferably, the structure that described bobbin is provided with several dividing plates vertically successively is: the axial two ends of described bobbin are provided with the first dividing plate 61, the middle part is provided with second partition 62, are provided with successively several the 3rd dividing plates 63 between described the first dividing plate and the second partition.
Preferably, described the first coil and the second coil continuously symmetry are wound on described coiling groove inner structure and are: described second partition is provided with the coiling through hole, and described the first coil and described the second coil can pass described coiling through hole continuous reeling between some coiling grooves.
Preferably, two line ends of described the first coil with two line ends of described the second coil with the structure that the two-terminal of described hold-down support is connected are respectively: described hold-down support is provided with several metallic channels, and two line ends of described the first coil can pass described metallic channel with two line ends of the second coil and be connected with described terminal.
Preferably, to use direction as benchmark, described coiling groove is that along continuous straight runs is arranged and a kind of in arranging successively vertically successively, described terminal be vertically with parallel described bobbin axis in a kind of, like this, can be according to electronic circuit needs, dimensional requirement, designing filter is vertical or horizontal, thereby saves the electronic circuit spatial volume.
Above embodiment is with reference to accompanying drawing; preferred embodiment of the present utility model is elaborated; those skilled in the art is by carrying out modification or the change on the various forms to above-described embodiment; but do not deviate from the situation of essence of the present utility model, all drop within the protection range of the present utility model.
Claims (6)
1. multiple-grooved line filter, it is characterized in that: comprise the first coil (1), the second coil (2), hollow bobbin (3) with through hole (31), day font closed magnetic circuit magnetic core (4) and hold-down support (5), the center pillar magnetic pin of described magnetic core can penetrate described through hole, described magnetic core and described bobbin are fixed on the described hold-down support, described bobbin is provided with several dividing plates vertically successively, consist of the coiling groove between adjacent two dividing plates, described the first coil and the second coil can continuous reeling in described coiling groove, four jiaos are provided with four terminals (51) on the described hold-down support, and two line ends of described the first coil are connected with the two-terminal of described hold-down support respectively with two line ends of described the second coil.
2. multiple-grooved line filter according to claim 1, it is characterized in that: the center pillar magnetic pin of described magnetic core can penetrate described perforation pore structure and be, described hollow bobbin is that two semi-circular coiling pipe fittings form by the cross section, and described two coiling pipe fittings mutually dock and are located by connecting.
3. multiple-grooved line filter according to claim 1, it is characterized in that: the structure that described bobbin is provided with several dividing plates vertically successively is: the axial two ends of described bobbin are provided with the first dividing plate (61), the middle part is provided with second partition (62), are provided with successively several the 3rd dividing plates (63) between described the first dividing plate and the second partition.
4. multiple-grooved line filter according to claim 1, it is characterized in that: described the first coil and the second coil continuously symmetry are wound on described coiling groove inner structure and are: described second partition is provided with the coiling through hole, and described the first coil and described the second coil can pass described coiling through hole continuous reeling between some coiling grooves.
5. multiple-grooved line filter according to claim 1, it is characterized in that: two line ends of described the first coil with two line ends of described the second coil with the structure that the two-terminal of described hold-down support is connected are respectively: described hold-down support is provided with several metallic channels, and two line ends of described the first coil can pass described metallic channel with two line ends of the second coil and be connected with described terminal.
6. according to claim 1 to 5 each described multiple-grooved line filters, it is characterized in that: to use direction as benchmark, described coiling groove is that along continuous straight runs is arranged and a kind of in arranging successively vertically successively, and described terminal be a kind of in vertical and the parallel described bobbin axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359287 CN202771893U (en) | 2012-07-24 | 2012-07-24 | Multi-groove line filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220359287 CN202771893U (en) | 2012-07-24 | 2012-07-24 | Multi-groove line filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202771893U true CN202771893U (en) | 2013-03-06 |
Family
ID=47778446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220359287 Expired - Fee Related CN202771893U (en) | 2012-07-24 | 2012-07-24 | Multi-groove line filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202771893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735459A (en) * | 2017-04-17 | 2018-11-02 | 矢崎总业株式会社 | Noise filter and noise reduction unit |
| CN113396462A (en) * | 2019-02-15 | 2021-09-14 | Tdk电子股份有限公司 | Coil and method for producing a coil |
-
2012
- 2012-07-24 CN CN 201220359287 patent/CN202771893U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108735459A (en) * | 2017-04-17 | 2018-11-02 | 矢崎总业株式会社 | Noise filter and noise reduction unit |
| CN108735459B (en) * | 2017-04-17 | 2022-02-25 | 矢崎总业株式会社 | Noise filter and noise reduction unit |
| CN113396462A (en) * | 2019-02-15 | 2021-09-14 | Tdk电子股份有限公司 | Coil and method for producing a coil |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6563089B2 (en) | Common mode filter | |
| JP5825249B2 (en) | Common mode filter | |
| CN202771893U (en) | Multi-groove line filter | |
| CN103545085A (en) | Double-magnetic-core CM-DM-integrated (common mode-difference mode-integrated) EMI (electro-magnetic interference) filter | |
| CN104539148A (en) | Filter circuit and device | |
| CN110379599B (en) | Integrated inductor and electronic device | |
| CN105336476A (en) | Switching power supply, EMI filter, common mode inductor and coiling method thereof | |
| CN102074330A (en) | Multi-phase differential-mode and common-mode joint reactor | |
| CN204463976U (en) | Common-mode filter | |
| JP6333321B2 (en) | Common mode filter | |
| CN104021921A (en) | Coupling inductor and power converter | |
| CN202275687U (en) | Difference and common module integrated inductor and electromagnetic interference (EMI) filter | |
| CN103578690A (en) | Multi-groove line filter | |
| CN202093921U (en) | Multiphase differential mode and common mode integrated reactor | |
| CN202771894U (en) | Line filter | |
| CN103578689A (en) | Line filter | |
| JP6583472B2 (en) | Common mode filter | |
| CN203607218U (en) | Phase-shift rectification transformer | |
| CN202771897U (en) | Annular inductor | |
| CN201780839U (en) | Integrated inductor based on differential-mode and common-mode filtering | |
| JP5996008B2 (en) | Common mode filter | |
| RU130468U1 (en) | FILTER FOR SUPPRESSION OF INTERFERENCE IN POWER SUPPLY NETWORKS (SPINEL) | |
| CN103779040A (en) | High-power density inductor | |
| CN202230852U (en) | Winding structure | |
| CN202998013U (en) | Network signal processing circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20130724 |