CN204498077U - A kind of shielded cable filter - Google Patents
A kind of shielded cable filter Download PDFInfo
- Publication number
- CN204498077U CN204498077U CN201520235417.6U CN201520235417U CN204498077U CN 204498077 U CN204498077 U CN 204498077U CN 201520235417 U CN201520235417 U CN 201520235417U CN 204498077 U CN204498077 U CN 204498077U
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- China
- Prior art keywords
- filter circuit
- shielding
- filter
- cable
- common mode
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- Expired - Fee Related
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- 230000003068 static effect Effects 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 238000004804 winding Methods 0.000 claims description 12
- 238000012216 screening Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 5
- 238000013459 approach Methods 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model provides a kind of shielded cable filter, described shielded cable filter comprises shielding cavity and is arranged on the first filter circuit and second filter circuit of described shielding cavity inside, described input shielding end link and output shielding end link are respectively arranged with cable interface, described cable interface comprises static line cable clip, the outer circumferential side of described static line cable clip is provided with mounting flange, the inner peripheral surface of described static line cable clip is provided with cable shielding layer installed surface, one end of described static line cable clip is connected with the second filter circuit with the first filter circuit by described mounting flange.By arranging shielding cavity, the first filter circuit, the second filter circuit and cable interface.Antijamming capability and the filtering device that can improve cable filter fix reliability, conveniently dock with shielded cable, having can through engineering approaches implementation, the electromagnetic information leakage Design of Reinforcement of the anti-electromagnetic information leakage system interconnection line used under adapting to harsh vibration condition.
Description
Technical field
The utility model relates to wave filter technology field, refers to a kind of shielded cable filter especially.
Background technology
In recent years, along with the continuous expansion of Information System Function, interconnection line in system between unit becomes increasingly complex, the multiple units including different frequency domain characteristic in system externally present complex electromagnetic environment, this just requires that these interconnect cable (mainly comprising power line, data wire, clock line, holding wire) must can transmit useful signal under complex electromagnetic environment, can suppress again the interference of unwanted signal.The electromagnetic information leakage problem of the anti-electromagnetic information leakage system interconnection line used under existing cable filter cannot solve harsh vibration condition.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of shielded cable filter, the electromagnetic information leakage problem of the anti-electromagnetic information leakage system interconnection line used under can solving harsh vibration condition.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of shielded cable filter, described shielded cable filter comprises shielding cavity and is arranged on the first filter circuit and second filter circuit of described shielding cavity inside, described shielding cavity shields end link by input and output shielding end link fastening forms, described input shielding end link and output shielding end link are respectively arranged with cable interface, described cable interface comprises static line cable clip, the outer circumferential side of described static line cable clip is provided with mounting flange, the inner peripheral surface of described static line cable clip is provided with cable shielding layer installed surface, one end of described static line cable clip is connected with the second filter circuit with the first filter circuit by described mounting flange, described first filter circuit and the second filter circuit are fixed on shielding cavity inside.
Preferably, the first described filter circuit comprises 3 winding common mode inductance LC1,3 winding common mode inductance LC2,3 common mode capacitance Cy; 3 windings of common mode inductance LC1 compose in series 3 series via with 1 winding of common mode inductance L C2 respectively, and 3 serial connections o'clock are electrically connected with pipe in shielding cavity respectively by 1 common mode capacitance Cy, form 3 T-shaped low-pass filter circuit paths.
Preferably, described second filter circuit three groups, often group is electrically connected to form by the common mode inductance that two are connected in series, and two common mode inductances often organized are wound on iron core with common mode, and three groups of filter circuit input and output binding post insulated terminals are fixed on the both sides of the shield shell that filter circuit is housed; The common-mode filter network of described two common mode inductances pure induction reactance in series often organized.
Preferably, described first filter circuit and the second filter circuit laminated configuration.
Preferably, the first described filter circuit is shielded by shielding cavity, and filtering device immobilization material is encapsulated in shielding cavity by epoxide-resin glue.
Preferably, the screening braid outside described input shielding end link shielding welding filter input line, forms input shielding waveguide structure.
Preferably, described output shielding end link shields with the screening braid outside filter output lines and welds, and forms output shielding waveguide structure.
Preferably, the first described filter circuit is the T-shaped low-pass filter circuit of S1-S1 ', S2-S2 ', N-N ' 3 paths.
The beneficial effect of technique scheme of the present utility model is as follows:
In such scheme, by arranging shielding cavity and the first filter circuit in described shielding cavity inside and the second filter circuit, and at input shielding end link and output shielding end link, cable interface is set respectively.Antijamming capability and the filtering device that can improve cable filter fix reliability, conveniently dock with shielded cable, having can through engineering approaches implementation, be adapted to the interconnection line design of information system, the electromagnetic information leakage Design of Reinforcement of the anti-electromagnetic information leakage system interconnection line used under especially adapting to harsh vibration condition.
Accompanying drawing explanation
Fig. 1 is the shielded cable filter graph architecture of the utility model embodiment.
[main element symbol description]
1, shielding cavity;
2, the first filter circuit;
3, the second filter circuit;
4, input shielding end link;
5, output shielding end link;
6, cable interface;
7, static line cable clip;
8, mounting flange;
9, cable shielding layer.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
As shown in Figure 1, a kind of shielded cable filter that embodiment of the present utility model provides, described shielded cable filter comprises shielding cavity 1 and is arranged on the first filter circuit 2 and the second filter circuit 3 of described shielding cavity 1 inside, described shielding cavity 1 shields end link 4 by input and output shielding end link 5 fastening forms, described input shielding end link 4 and output shielding end link 5 are respectively arranged with cable interface 6, described cable interface 6 comprises static line cable clip 7, the outer circumferential side of described static line cable clip 7 is provided with mounting flange 8, the inner peripheral surface of described static line cable clip 7 is provided with cable shielding layer 9 installed surface, one end of described static line cable clip 7 is connected with the second filter circuit 3 with the first filter circuit 2 by described mounting flange 8, described first filter circuit 2 and the second filter circuit 3 are fixed on shielding cavity inside.
Preferably, the first described filter circuit comprises 3 winding common mode inductance LC1,3 winding common mode inductance LC2,3 common mode capacitance Cy; 3 windings of common mode inductance LC1 compose in series 3 series via with 1 winding of common mode inductance L C2 respectively, and 3 serial connections o'clock are electrically connected with pipe in shielding cavity respectively by 1 common mode capacitance Cy, form 3 T-shaped low-pass filter circuit paths.
Preferably, described second filter circuit three groups, often group is electrically connected to form by the common mode inductance that two are connected in series, and two common mode inductances often organized are wound on iron core with common mode, and three groups of filter circuit input and output binding post insulated terminals are fixed on the both sides of the shield shell that filter circuit is housed; The common-mode filter network of described two common mode inductances pure induction reactance in series often organized.
Preferably, described first filter circuit and the second filter circuit laminated configuration.
Preferably, the first described filter circuit is shielded by shielding cavity, and filtering device immobilization material is encapsulated in shielding cavity by epoxide-resin glue.
Preferably, the screening braid outside described input shielding end link shielding welding filter input line, forms input shielding waveguide structure.
Preferably, described output shielding end link shields with the screening braid outside filter output lines and welds, and forms output shielding waveguide structure.
Preferably, the first described filter circuit is the T-shaped low-pass filter circuit of S1-S1 ', S2-S2 ', N-N ' 3 paths.
The shielded cable filter of the utility model embodiment, by arranging shielding cavity and the first filter circuit in described shielding cavity inside and the second filter circuit, and at input shielding end link and output shielding end link, cable interface is set respectively.Antijamming capability and the filtering device that can improve cable filter fix reliability, conveniently dock with shielded cable, having can through engineering approaches implementation, be adapted to the interconnection line design of information system, the electromagnetic information leakage Design of Reinforcement of the anti-electromagnetic information leakage system interconnection line used under especially adapting to harsh vibration condition.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (8)
1. a shielded cable filter, it is characterized in that, described shielded cable filter comprises shielding cavity and is arranged on the first filter circuit and second filter circuit of described shielding cavity inside, described shielding cavity shields end link by input and output shielding end link fastening forms, described input shielding end link and output shielding end link are respectively arranged with cable interface, described cable interface comprises static line cable clip, the outer circumferential side of described static line cable clip is provided with mounting flange, the inner peripheral surface of described static line cable clip is provided with cable shielding layer installed surface, one end of described static line cable clip is connected with the second filter circuit with the first filter circuit by described mounting flange, described first filter circuit and the second filter circuit are fixed on shielding cavity inside.
2. shielded cable filter according to claim 1, is characterized in that, the first described filter circuit comprises 3 winding common mode inductance LC1,3 winding common mode inductance LC2,3 common mode capacitance Cy; 3 windings of common mode inductance LC1 compose in series 3 series via with 1 winding of common mode inductance L C2 respectively, and 3 serial connections o'clock are electrically connected with pipe in shielding cavity respectively by 1 common mode capacitance Cy, form 3 T-shaped low-pass filter circuit paths.
3. shielded cable filter according to claim 1, it is characterized in that, described second filter circuit three groups, often group is electrically connected to form by the common mode inductance that two are connected in series, two common mode inductances often organized are wound on iron core with common mode, and three groups of filter circuit input and output binding post insulated terminals are fixed on the both sides of the shield shell that filter circuit is housed; The common-mode filter network of described two common mode inductances pure induction reactance in series often organized.
4. shielded cable filter according to claim 1, is characterized in that, described first filter circuit and the second filter circuit laminated configuration.
5. shielded cable filter according to claim 1, is characterized in that, the first described filter circuit is shielded by shielding cavity, and filtering device immobilization material is encapsulated in shielding cavity by epoxide-resin glue.
6. shielded cable filter according to claim 1, is characterized in that, the screening braid outside described input shielding end link shielding welding filter input line, forms input shielding waveguide structure.
7. shielded cable filter according to claim 1, is characterized in that, described output shielding end link shields with the screening braid outside filter output lines and welds, and forms output shielding waveguide structure.
8. shielded cable filter according to claim 1, is characterized in that, the first described filter circuit is the T-shaped low-pass filter circuit of S1-S1 ', S2-S2 ', N-N ' 3 paths.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235417.6U CN204498077U (en) | 2015-04-17 | 2015-04-17 | A kind of shielded cable filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235417.6U CN204498077U (en) | 2015-04-17 | 2015-04-17 | A kind of shielded cable filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204498077U true CN204498077U (en) | 2015-07-22 |
Family
ID=53577355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520235417.6U Expired - Fee Related CN204498077U (en) | 2015-04-17 | 2015-04-17 | A kind of shielded cable filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204498077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075759A (en) * | 2016-04-22 | 2018-12-21 | 株式会社自动网络技术研究所 | Conducting channel with noise filter |
| WO2023024814A1 (en) * | 2021-08-23 | 2023-03-02 | 华为技术有限公司 | Filter, antenna, base station, and manufacturing method for filter |
-
2015
- 2015-04-17 CN CN201520235417.6U patent/CN204498077U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109075759A (en) * | 2016-04-22 | 2018-12-21 | 株式会社自动网络技术研究所 | Conducting channel with noise filter |
| CN109075759B (en) * | 2016-04-22 | 2021-11-23 | 株式会社自动网络技术研究所 | Conductive circuit with noise filter |
| WO2023024814A1 (en) * | 2021-08-23 | 2023-03-02 | 华为技术有限公司 | Filter, antenna, base station, and manufacturing method for filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191216 Address after: 430014 A room, eight floor, building A, Riverview building, Jiang'an District, Wuhan, Hubei Patentee after: Wuhan jieweite machine room Engineering Co., Ltd Address before: 430014 A room, eight floor, building A, Riverview building, Jiang'an District, Wuhan, Hubei Patentee before: Liang Yucheng |
|
| 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: 20150722 Termination date: 20210417 |