CN102545190A - Design method and device for electronic shelter lightning protection filter - Google Patents
Design method and device for electronic shelter lightning protection filter Download PDFInfo
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- CN102545190A CN102545190A CN2010106214025A CN201010621402A CN102545190A CN 102545190 A CN102545190 A CN 102545190A CN 2010106214025 A CN2010106214025 A CN 2010106214025A CN 201010621402 A CN201010621402 A CN 201010621402A CN 102545190 A CN102545190 A CN 102545190A
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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
The invention relates to a filter, in particular to a design method and device for an electronic shelter lightning protection filter. The device is characterized by comprising a lightning protection module circuit, a reflection filter circuit, an absorption filter circuit and a shielding shell, wherein the lightning protection module circuit is electrically connected with the input end of the reflection filter circuit; the output end of the reflection filter circuit is electrically connected with the absorption filter circuit to form an L-L' channel and an N-N' channel; and the lightning protection module circuit, the reflection filter circuit and the absorption filter circuit are fixed in the shielding cavity of the shielding shell. Due to the adoption of the device and the method, sufficient insertion loss can be provided, the requirements of lightning protection and surge resistance can be met, and the personnel and equipment safety is ensured.
Description
Technical field
The present invention relates to a kind of filter, is a kind of electronics shelter lightning protection Filter Design method and device specifically, belongs to electric and electronic technical field.
Background technology
In recent years, as the shielding shelter of electronics motor driven type carrier, be widely used in the electronic system on Aeronautics and Astronautics, naval vessel and ground.The non-constant width of electromagnetic environment frequency band of these systems, field intensity is also very big.Because electromagnetic wave passes through the field of radiation field a--coupling on the one hand to the electromagnetic coupled of shielding shelter; Also can pass through the field of power line, holding wire on the other hand--the line coupling; For this reason for guaranteeing that the shielding shelter reaches the screening effectiveness of defined in such complex electromagnetic environments; The electromagnetic interference that elimination is introduced by power line then must development be inserted loss and the suitable power-supply filter of shielding shelter screening effectiveness index.Simultaneously; Owing to receive the influence of extraneous natural environment; Shielding shelter power-supply filter will satisfy the requirement of inserting loss on the one hand; Guarantee the safety of electronic equipment on the other hand again, anti-thunderbolt and antisurge requirement arranged, thereby propose a kind of high-performance electronic shelter lightning protection filter that is applied to and just seem extremely important.
Summary of the invention
The objective of the invention is: a kind of electronics shelter lightning protection Filter Design method and device are provided, and it can provide enough insertion losses to prevent thunderbolt and antisurge requirement with guaranteeing, guarantees the safety of the person and equipment.
The present invention realizes through following technical proposals: a kind of electronics shelter lightning protection Filter Design method; It is characterized in that: comprise lightning-protection module circuit, reflecting filter circuit, absorption filter circuit and shield shell; The lightning-protection module circuit is electrically connected with the input of reflecting filter circuit; The output of reflecting filter circuit is electrically connected with absorption filter circuit input; Form L-L ' passage and N-N ' passage, lightning-protection module circuit, reflecting filter circuit and absorption filter circuit are fixed in the shielding cavity of shield shell.
A kind of electronics shelter lightning protection filter according to above-mentioned designing method; It is characterized in that: its shield shell is divided into first cavity and filter circuit assembling cavity by spacer; Be fixed with the lightning-protection module circuit on the mounting panel in first cavity, the absorption filter circuit that filter circuit assembling cavity internal fixation has bass reflex type LC filter circuit and coaxial-type distributed circuit to constitute.
Described lightning-protection module circuit comprises three piezo-resistances, and three pressure-sensitive is attempted by between line-line and between line-ground.
Described bass reflex type LC filter circuit is made up of two common mode inductance L1 and four common mode capacitance Cy; Four common mode capacitance Cy are concatenated into two groups in twos, one group of one end ground connection wherein, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described L-L ' passage; Another organizes an end ground connection, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described N-N ' passage.
The absorption filter circuit that described coaxial-type distributed circuit constitutes is made up of two common mode inductance L2 and two feedthrough capacitor Cy1, and the end lead-in wire of each common mode inductance L2 passes a feedthrough capacitor Cy1, constitutes absorption filter circuit.
Said shield shell is the rectangle housing, and shield shell is connected with waveguide.
Said common mode inductance L1 and common mode inductance L2 are formed by the coiling of amorphous state sodium rice metal material.
Characteristics of the present invention are: the present invention forms the lightning-protection module circuit by a plurality of piezo-resistances; The reflecting filter circuit that two common mode inductances, the common mode capacitance that distributed inductance is very little are formed, and the absorption filter circuit that is made up of the coaxial-type distributed circuit constitutes.Line-line that piezo-resistance is formed, before line-ground lightning protection module is serially connected in the input of filter circuit; When on power line, producing the surge interference; This protection module suppresses surge at the filter circuit input rapidly to be disturbed, make it become stable state and disturb, after altogether, the whole filtering of differential mode filter circuit; Finally reach the purpose of equipment operate as normal, guarantee the safety of the person and equipment in the cabin.
The present invention have defencive function perfect, insert the high characteristics of loss, be applicable to the lightning protection and the filtering of electronics shelter power line.
Description of drawings
Below in conjunction with embodiment and accompanying drawing the present invention is described further.
Fig. 1 is the structure external form figure of the embodiment of the invention;
Fig. 2 is the circuit theory diagrams in the specific embodiment.
Among the figure: 1, lightning-protection module circuit; 2, bass reflex type LC filter circuit; 3, the absorption filter circuit of coaxial-type distributed circuit formation; 4, mounting panel; 5, filter circuit assembling cavity; 6, shield shell; 7, waveguide; 8, first cavity.
Embodiment
Electronics shelter lightning protection Filter Design method; It comprises lightning-protection module circuit, reflecting filter circuit, absorption filter circuit and shield shell; The lightning-protection module circuit is electrically connected with the input of reflecting filter circuit; The output of reflecting filter circuit is electrically connected with absorption filter circuit input, forms L-L ' passage and N-N ' passage, and lightning-protection module circuit, reflecting filter circuit and absorption filter circuit are fixed in the shielding cavity of shield shell.
The structure that is not described in detail in an embodiment, its structure is identical with existing known structure.
Embodiment 1
Electronics shelter lightning protection filter; Its shield shell 6 is divided into first cavity 8 and filter circuit assembling cavity 5 by spacer; Be fixed with lightning-protection module circuit 1 on the mounting panel 4 in first cavity 8, the absorption filter circuit 3 that filter circuit assembling cavity 5 internal fixation have bass reflex type LC filter circuit 2 and coaxial-type distributed circuit to constitute; Described lightning-protection module circuit 1 is connected to respectively between L-N, L-E, the N-E line by three piezo-resistance M to be formed; Described bass reflex type LC filter circuit 2 is made up of common mode inductance L1 and common mode capacitor C y; The absorption filter circuit 3 that described coaxial-type distributed circuit constitutes is made up of common mode inductance L2 and feedthrough capacitor Cy1.
As depicted in figs. 1 and 2, electronics shelter lightning protection filter, its shield shell is a rectangle housing 6, it be on the steel copper facing again the nickel plating material process, shield shell is connected with waveguide 7.Shield shell 6 is divided into first cavity 8 and filter circuit assembling cavity 5 by spacer; Be fixed with lightning-protection module circuit 1 on the mounting panel 4 in first cavity 8, the absorption filter circuit 3 that filter circuit assembling cavity 5 internal fixation have bass reflex type LC filter circuit 2 and coaxial-type distributed circuit to constitute; Described lightning-protection module circuit 1 is connected to respectively between L-N, L-E, the N-E line by three piezo-resistance M to be formed; When on power line, producing the surge interference, this protection module suppresses surge at the filter circuit input rapidly to be disturbed, and makes it become stable state and disturbs.The absorption filter circuit 3 of described bass reflex type LC filter circuit 2 and coaxial-type distributed circuit formation is connected in series and forms L-L ' passage and N-N ' passage.Described bass reflex type LC filter circuit 2 is made up of two common mode inductance L1 and four common mode capacitance Cy; Four common mode capacitance Cy are concatenated into two groups in twos, one group of one end ground connection wherein, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described L-L ' passage; Another organizes an end ground connection, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described N-N ' passage.The absorption filter circuit 3 that described coaxial-type distributed circuit constitutes is made up of two common mode inductance L2 and two feedthrough capacitor Cy1, and the end lead-in wire of each common mode inductance L2 passes a feedthrough capacitor Cy1, constitutes absorption filter circuit.Distributed inductance in the middle of the common mode capacitance Cy very little, Ground leakage current is very little, common mode capacitance Cy, feedthrough capacitor Cy1 and common mode inductance L 1 and common mode inductance L2 composition L type filter circuit and T type filter circuit.
Said common mode inductance L1 and common mode inductance L2 are formed by the lower amorphous state sodium rice metal material coiling of cut-off frequency, for low frequency the good restraining effect are arranged.
Said shield shell 6 is connected with waveguide 7, and common mode inductance L1 and common mode inductance L2 are formed by the coiling of amorphous state sodium rice metal material.
The present invention forms the lightning-protection module circuit by a plurality of piezo-resistances, the reflecting filter circuit that two common mode inductances, the common mode capacitance that distributed inductance is very little are formed, and the absorption filter circuit that is made up of the coaxial-type distributed circuit constitutes.Line-line that piezo-resistance is formed, before line-ground lightning protection module is serially connected in the input of filter circuit; When on power line, producing the surge interference; This protection module suppresses surge at the filter circuit input rapidly to be disturbed, make it become stable state and disturb, after altogether, the whole filtering of differential mode filter circuit; Finally reach the purpose of equipment operate as normal, guarantee the safety of the person and equipment in the cabin.
Above content is to combine concrete preferred implementation to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.
Claims (7)
1. electronics shelter lightning protection Filter Design method; It is characterized in that: comprise lightning-protection module circuit, reflecting filter circuit, absorption filter circuit and shield shell; The lightning-protection module circuit is electrically connected with the input of reflecting filter circuit; The output of reflecting filter circuit is electrically connected with absorption filter circuit input; Form L-L ' passage and N-N ' passage, lightning-protection module circuit, reflecting filter circuit and absorption filter circuit are fixed in the shielding cavity of shield shell.
2. according to a kind of electronics shelter lightning protection filter of above-mentioned designing method; It is characterized in that: its shield shell (6) is divided into first cavity (8) and filter circuit assembling cavity (5) by spacer; Be fixed with lightning-protection module circuit (1) on the mounting panel (4) in first cavity (8), the absorption filter circuit (3) that filter circuit assembling cavity (5) internal fixation has bass reflex type LC filter circuit (2) and coaxial-type distributed circuit to constitute.
3. a kind of electronics shelter lightning protection filter according to claim 2, it is characterized in that: described lightning-protection module circuit (1) comprises three piezo-resistances, three pressure-sensitive is attempted by between line-line and between line-ground.
4. a kind of electronics shelter lightning protection filter according to claim 2, it is characterized in that: described bass reflex type LC filter circuit (2) is made up of two common mode inductance L1 and four common mode capacitance Cy; Four common mode capacitance Cy are concatenated into two groups in twos, one group of one end ground connection wherein, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described L-L ' passage; Another organizes an end ground connection, and the other end is connected between the common mode inductance L1 and common mode inductance L2 on described N-N ' passage.
5. a kind of electronics shelter lightning protection filter according to claim 2; It is characterized in that: the absorption filter circuit (3) that described coaxial-type distributed circuit constitutes is made up of two common mode inductance L2 and two feedthrough capacitor Cy1; The end lead-in wire of each common mode inductance L2 passes a feedthrough capacitor Cy1, constitutes absorption filter circuit.
6. a kind of electronics shelter lightning protection filter according to claim 2, it is characterized in that: said shield shell (6) is the rectangle housing, shield shell is connected with waveguide (7).
7. a kind of electronics shelter lightning protection filter according to claim 4 is characterized in that: said common mode inductance L1 and common mode inductance L2 are formed by the coiling of amorphous state sodium rice metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106214025A CN102545190A (en) | 2010-12-20 | 2010-12-20 | Design method and device for electronic shelter lightning protection filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106214025A CN102545190A (en) | 2010-12-20 | 2010-12-20 | Design method and device for electronic shelter lightning protection filter |
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| CN102545190A true CN102545190A (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010106214025A Pending CN102545190A (en) | 2010-12-20 | 2010-12-20 | Design method and device for electronic shelter lightning protection filter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368377A (en) * | 2013-07-17 | 2013-10-23 | 华南理工大学 | Preceding-stage EMI filtering protective circuit of driving power source |
| CN103391063A (en) * | 2013-07-16 | 2013-11-13 | 北京伊斯普电子技术有限公司 | Integrated nuclear electromagnetic pulse resistant signal filter |
-
2010
- 2010-12-20 CN CN2010106214025A patent/CN102545190A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103391063A (en) * | 2013-07-16 | 2013-11-13 | 北京伊斯普电子技术有限公司 | Integrated nuclear electromagnetic pulse resistant signal filter |
| CN103368377A (en) * | 2013-07-17 | 2013-10-23 | 华南理工大学 | Preceding-stage EMI filtering protective circuit of driving power source |
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Application publication date: 20120704 |