CN208623329U - One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic - Google Patents
One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic Download PDFInfo
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- CN208623329U CN208623329U CN201820092033.7U CN201820092033U CN208623329U CN 208623329 U CN208623329 U CN 208623329U CN 201820092033 U CN201820092033 U CN 201820092033U CN 208623329 U CN208623329 U CN 208623329U
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- emc
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- safeguard structure
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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
Abstract
The utility model, providing one kind has the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, including constituting whole power of alterating and direct current safeguard structure, network RJ45 safeguard structure, RS485 communication safeguard structure, composite video safeguard structure.Power of alterating and direct current, network RJ45 interface, RS485 communication interface, the lightning stroke of composite video interface and EMC can be protected, it can make that there are the abilities such as anti-lightning strike, antistatic, resistance to rapid impulse train interference, antisurge, anti-Conduction Interference and radiation interference by the power supply and signal of the utility model, the Electro Magnetic Compatibility and immunity to interference of product are further increased, the miniaturization purpose of the volume of product and equipment is monitored.
Description
Technical field
The utility model relates to electronic technology, particularly a kind of to have the compatible immunity to interference mould of lightning protection EMC multifunction electromagnetic
Group.
Background technique
Currently, indoors, particularly in the remote monitor equipment of field, since cost, equipment volume, technical capability etc. are all
Multifactor limitation is difficult to combine anti-lightning strike and EMC electromagnetic compatibility the protective design to equipment.And it is existing in the market
Matured product both for some port, the protection of the single type done, such as just for the anti-of the port network RJ45
Lightning Protection etc., the protective without taking into account lightning protection and EMC electromagnetic compatibility to equipment design.
Summary of the invention
In order to realize the full protection to product, the miniaturization of the reliability and volume of product is further increased, is needed
Unified design is carried out to product, the utility model provides a kind of with anti-lightning strike and EMC electromagnetic compatibility immunity function
Mould group, being capable of lightning stroke to power of alterating and direct current, network RJ45 interface, RS485 communication interface, composite video interface etc. and EMC electricity
The compatible immunity to interference of magnetic is protected, to achieve the purpose that the full protection to equipment, reduce equipment volume, reduction equipment cost.
The purpose of this utility model is realized by following technical solutions:
One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, including constituting whole power of alterating and direct current protection
Structure, network RJ45 safeguard structure, RS485 communicate safeguard structure, composite video safeguard structure.
The power of alterating and direct current safeguard structure includes sequentially connected alterating and direct current source interface, gas-discharge tube, pressure-sensitive electricity
Resistance, surging protection circuit (electrostatic discharge protection circuit), 3 section EMC/EMI filter circuit of twin-stage；The surging protection circuit includes pressure-sensitive
Resistance and gas-discharge tube；L line and N line discharge to the high pressure higher than 90V or more respectively through too high voltages gas-discharge tube
Then bleed off processing does second level over-voltage protection by varistor, be surging protection circuit after second level protection, by pressure-sensitive
Resistance and gas-discharge tube absorb surge；It is finally 3 section EMC/EMI filter circuit of twin-stage.
The network RJ45 safeguard structure includes network RJ45 interface, lightning prevention circuit and the anti-transition circuit of TVS；It is described anti-
Thunder strike circuit includes high-pressure discharge pipe, and the anti-transition circuit includes network transformer and TVS pipe；Signal conductor passes through first
The gas-discharge tube of too high voltages carries out electric discharge bleed off processing to the high voltage higher than 90V or more, then passes through network transformation
Device finally absorbs low-voltage with the TVS pipe of low-voltage.
The RS485 communicates the anti-transition that safeguard structure includes RS485 communication interface, is made of high-pressure discharge pipe
The filter that the anti-transition circuit of bridge-type TVS, common mode inductance and the filter capacitor that lightning prevention circuit, TVS pipe and varistor are constituted are constituted
Wave current-limiting circuit；Signal conductor first passes around high voltage gas-discharge tube, carries out at electric discharge bleed off to the high pressure higher than 90V or more
Then reason absorbs the impact of lower voltage by TVS pipe, carries out overcurrent and overvoltage protection with varistor, finally use common mode
Interference is further eliminated in the combination of inductance and filter capacitor.
The anti-lightning strike electricity that the composite video safeguard structure includes composite video interface, is made of high-pressure discharge pipe
The anti-transition circuit of bridge-type TVS that road, TVS pipe are constituted；Signal conductor first passes around high voltage gas-discharge tube, to be higher than 90V with
On high pressure carry out electric discharge bleed off processing, then by TVS pipe absorb lower voltage impact.
It is designed by above structure, it can be to power of alterating and direct current, network RJ45 interface, RS485 communication interface, compound view
The lightning stroke of frequency interface and EMC are protected, and can make to have by the power supply and signal of the mould group anti-lightning strike, antistatic, anti-fast
The abilities such as fast impulse train interference, antisurge, anti-Conduction Interference and radiation interference.
The beneficial effect of the invention.
(1) the utility model realizes the combination of lightning Protection and EMC protection, and design circuit is simple, compact, structure
It is compact, it is easily installed.
(2) the anti-lightning strike voltage protection level of power interface reaches Uc=30VAC, Up=900V, and network interface Uc=6VDC, Up=
600V, RS485 interface Uc=12VDC, Up=600V, video interface Uc=12VDC, Up=600V；Test basis standard: GB
" the 21st part of low pressure surge protection device: surge protector (SPD) performance for telecommunications and signal network 18802.21-2016
It is required that and test method ".GB 18802.1-2001 " the protection of low pressure surge protector (SPD) part 1 low-voltage distribution system
Device performance requirement and test method ".
(3) esd immunity limit value meets the regulation of 1 test class 4 of GB/T 17626.2-2006 table.Radio frequency electrical
Magnetic field radiation immunity limit meets the regulation of 1 test class 3 of GB/T 17626.3-2006 table.Electrical fast transient (eft) is anti-
Degree of disturbing limit value immunity to interference meets the regulation of 1 test class 4 of GB/T 17626.4-2008 table.Surge (impact) immunity limit symbol
Close the regulation of 1 test class 4 of GB/T 17626.5-2008 table.The conduction interference immunity limit of radiofrequency field induction meets GB/T
The regulation of 1 test class 2 of 17626.6-2008 table.Conduction interference limit value meets the regulation of GB 9254-2008 middle grade A.
Detailed description of the invention
Attached drawing described herein, is used to provide further understanding of the present invention, and constitutes part of this application, not
The restriction to the embodiment of the invention is constituted, in the accompanying drawings:
Fig. 1 is the structure chart of the utility model,
Fig. 2 is the circuit diagram of the utility model.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail:
It is right below with reference to embodiment and attached drawing to make to be more clearly understood for the purpose of this utility model, technology and advantage
The present invention is described in further detail, exemplary embodiment and its explanation of the invention, for explaining only the invention, not
As to the restriction for the utility model.
The utility model one kind has the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, and the friendship including constituting whole is straight
Galvanic electricity source safeguard structure, network RJ45 safeguard structure, RS485 communicate safeguard structure, composite video safeguard structure.
The power of alterating and direct current safeguard structure includes sequentially connected alterating and direct current source interface, gas-discharge tube, pressure-sensitive electricity
Resistance, surging protection circuit (electrostatic discharge protection circuit), 3 section EMC/EMI filter circuit of twin-stage；The surging protection circuit includes pressure-sensitive
Resistance and gas-discharge tube；L line and N line discharge to the high pressure higher than 90V or more respectively through too high voltages gas-discharge tube
Then bleed off processing does second level over-voltage protection by varistor, be surging protection circuit after second level protection, by pressure-sensitive
Resistance and gas-discharge tube absorb surge；It is finally 3 section EMC/EMI filter circuit of twin-stage.
The network RJ45 safeguard structure includes network RJ45 interface, lightning prevention circuit and the anti-transition circuit of TVS；It is described anti-
Thunder strike circuit includes high-pressure discharge pipe, and the anti-transition circuit includes network transformer and TVS pipe；Signal conductor passes through first
The gas-discharge tube of too high voltages carries out electric discharge bleed off processing to the high voltage higher than 90V or more, then passes through network transformation
Device finally absorbs low-voltage with the TVS pipe of low-voltage.
The RS485 communicates the anti-transition that safeguard structure includes RS485 communication interface, is made of high-pressure discharge pipe
The filter that the anti-transition circuit of bridge-type TVS, common mode inductance and the filter capacitor that lightning prevention circuit, TVS pipe and varistor are constituted are constituted
Wave current-limiting circuit；Signal conductor first passes around high voltage gas-discharge tube, carries out at electric discharge bleed off to the high pressure higher than 90V or more
Then reason absorbs the impact of lower voltage by TVS pipe, carries out overcurrent and overvoltage protection with varistor, finally use common mode
Interference is further eliminated in the combination of inductance and filter capacitor.
The anti-lightning strike electricity that the composite video safeguard structure includes composite video interface, is made of high-pressure discharge pipe
The anti-transition circuit of bridge-type TVS that road, TVS pipe are constituted；Signal conductor first passes around high voltage gas-discharge tube, to be higher than 90V with
On high pressure carry out electric discharge bleed off processing, then by TVS pipe absorb lower voltage impact.
The structure of the utility model designs, can be to power of alterating and direct current, network RJ45 interface, RS485 communication interface, compound
The lightning stroke of video interface and EMC are protected, and can make to have by the power supply and signal of the mould group anti-lightning strike, antistatic, anti-
The abilities such as fast pulse interference train, antisurge, anti-Conduction Interference and radiation interference.
The utility model one kind has the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, using in monitoring device, thus
Make that there is anti-lightning strike, antistatic, the interference of resistance to rapid impulse train, antisurge, anti-Conduction Interference by the power supply and signal of the mould group
With the abilities such as radiation interference, reach the full protection realized to product, further increase product reliability and volume it is small
Type purpose.
The anti-lightning strike voltage protection level of power interface reaches Uc=30VAC, Up=900V, and network interface Uc=6VDC, Up=
600V, RS485 interface Uc=12VDC, Up=600V, video interface Uc=12VDC, Up=600V.
Test basis standard: " the 21st part of low pressure surge protection device: telecommunications and signal network GB 18802.21-2016
Surge protector (SPD) performance requirement and test method ".GB 18802.1-2001 " low pressure surge protector (SPD) the 1st
The protector performance requirement and test method of part low-voltage distribution system ".
Esd immunity limit value meets the regulation of 1 test class 4 of GB/T 17626.2-2006 table.Radio frequency electromagnetic field
Radiation immunity limit value meets the regulation of 1 test class 3 of GB/T 17626.3-2006 table.Electrical fast transient (eft) immunity to interference
Limit value immunity to interference meets the regulation of 1 test class 4 of GB/T 17626.4-2008 table.Surge (impact) immunity limit meets
The regulation of 1 test class 4 of GB/T 17626.5-2008 table.The conduction interference immunity limit of radiofrequency field induction meets GB/T
The regulation of 1 test class 2 of 17626.6-2008 table.Conduction interference limit value meets the regulation of GB 9254-2008 middle grade A.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not used to limit originally practical the foregoing is merely a specific embodiment of the invention
Novel protection scope, all within the spirits and principles of the present invention, be made any modification, equivalent substitution, improvement and etc. should all
It is included within protection scope of the present invention.
Claims (5)
1. one kind has the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, it is characterised in that: including constituting whole alternating current-direct current
Power supply structure, network RJ45 safeguard structure, RS485 communicate safeguard structure, composite video safeguard structure.
2. according to claim 1 a kind of with the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, it is characterised in that:
The power of alterating and direct current safeguard structure includes sequentially connected alterating and direct current source interface, gas-discharge tube, and varistor, surge are anti-
Protection circuit, 3 section EMC/EMI filter circuit of twin-stage；The surging protection circuit includes varistor and gas-discharge tube；L line and N
Line carries out electric discharge bleed off processing to the high pressure higher than 90V or more, then passes through pressure-sensitive electricity respectively through too high voltages gas-discharge tube
Second level over-voltage protection is done in resistance, is surging protection circuit after second level protection, absorbs wave by varistor and gas-discharge tube
It gushes；It is finally 3 section EMC/EMI filter circuit of twin-stage.
3. according to claim 1 a kind of with the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, it is characterised in that:
The network RJ45 safeguard structure includes network RJ45 interface, lightning prevention circuit and the anti-transition circuit of TVS；The lightning prevention circuit
Including high-pressure discharge pipe, the anti-transition circuit includes network transformer and TVS pipe；Signal conductor first passes around high voltage
Gas-discharge tube, to higher than 90V or more high voltage carry out electric discharge bleed off processing, then pass through network transformer, finally use
The TVS pipe of low-voltage absorbs low-voltage.
4. according to claim 1 a kind of with the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, it is characterised in that:
The RS485 communication safeguard structure includes RS485 communication interface, the anti-lightning strike electricity of anti-transition being made of high-pressure discharge pipe
The filtering current limliting electricity that the anti-transition circuit of bridge-type TVS, common mode inductance and the filter capacitor that road, TVS pipe and varistor are constituted are constituted
Road；Signal conductor first passes around high voltage gas-discharge tube, carries out electric discharge bleed off processing to the high pressure higher than 90V or more, then
The impact that lower voltage is absorbed by TVS pipe, carries out overcurrent and overvoltage protection with varistor, finally uses common mode inductance and filter
Interference is further eliminated in the combination of wave capacitor.
5. according to claim 1 a kind of with the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic, it is characterised in that:
The composite video safeguard structure includes composite video interface, the lightning prevention circuit being made of high-pressure discharge pipe, TVS pipe structure
At the anti-transition circuit of bridge-type TVS；Signal conductor first passes around high voltage gas-discharge tube, to higher than 90V or more high pressure into
Row electric discharge bleed off processing, then absorbs the impact of lower voltage by TVS pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820092033.7U CN208623329U (en) | 2018-01-19 | 2018-01-19 | One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820092033.7U CN208623329U (en) | 2018-01-19 | 2018-01-19 | One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623329U true CN208623329U (en) | 2019-03-19 |
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ID=65691332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820092033.7U Active CN208623329U (en) | 2018-01-19 | 2018-01-19 | One kind having the compatible immunity to interference mould group of lightning protection EMC multifunction electromagnetic |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208623329U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934303A (en) * | 2020-09-22 | 2020-11-13 | 中国电子科技网络信息安全有限公司 | Strong electromagnetic pulse protection device of vehicle electric control system |
| CN112737701A (en) * | 2020-12-30 | 2021-04-30 | 石家庄科林电气股份有限公司 | Equipment for filtering interference in communication line in electromagnetic compatibility test |
-
2018
- 2018-01-19 CN CN201820092033.7U patent/CN208623329U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111934303A (en) * | 2020-09-22 | 2020-11-13 | 中国电子科技网络信息安全有限公司 | Strong electromagnetic pulse protection device of vehicle electric control system |
| CN112737701A (en) * | 2020-12-30 | 2021-04-30 | 石家庄科林电气股份有限公司 | Equipment for filtering interference in communication line in electromagnetic compatibility test |
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