CN203895970U - MDI two-in-one anti-thunder protector - Google Patents
MDI two-in-one anti-thunder protector Download PDFInfo
- Publication number
- CN203895970U CN203895970U CN201420267429.2U CN201420267429U CN203895970U CN 203895970 U CN203895970 U CN 203895970U CN 201420267429 U CN201420267429 U CN 201420267429U CN 203895970 U CN203895970 U CN 203895970U
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- network signal
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- power supply
- output terminal
- mdi
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Abstract
The utility model provides a MDI two-in-one anti-thunder protector, comprising a power protection circuit disposed between a power input end and a power output end, and a signal protection circuit disposed between a gigabit network signal input end and a gigabit network signal output end. The power protection circuit and the signal protection circuit of the gigabit network signal use three-stage protection. The three-level protection is respectively a pre-stage thunder leakage circuit, a middle-stage decoupling protection circuit, and a post-stage end protection circuit. The MDI two-in-one anti-thunder protector is simple in structure and good in safety protection performance.
Description
Technical field
The utility model relates to a kind of not only protection power source but also protects the two-in-one anti-lightening protector of gigabit network signal.
Background technology
High speed signal lightning protection is to follow universal, the development of modern electronic technology, information technology and the newer industry that is derived.Birth and development along with new electronic component, the high speed development of electric power and information industry, electric power, railway, oil, communication, airport, national defence, finance etc. also presents high speed development trend to the demand of meticulous lightning protection component, especially in message transmitting procedure, siganl thunder-proof device is also had higher requirement simultaneously, not only require lightning protection device to meet the transmission characteristic of signal, also require the protective capability of lightning protection device, structure etc., existing lightning protection device is ensureing the transmission characteristic of signal, possesses good protective capability, balance well among these 3 requirements simple in structure, can not meet current development need.
Therefore, how providing a kind of lightning protection device simple in structure, that safeguard protection performance is high is industry technical problem urgently to be resolved hurrily.
Utility model content
The utility model is in order to solve the technical problem existing in above-mentioned prior art, proposed can protection power source can protect again the two-in-one anti-lightening protector of MDI of gigabit network signal.
The two-in-one anti-lightening protector of MDI of the present utility model; comprise the power supply circuit of being located between power supply input/output terminal and be located at the signal guard circuit between gigabit network signal input/output terminal; and the signal guard circuit of power supply circuit and gigabit networking all adopts three grades of protection, be respectively prime thunder and lightning leadage circuit, intermediate decoupling protective circuit, rear class end protective circuit.
In the technical program, prime thunder and lightning leadage circuit between power supply input/output terminal comprises: Thermal Cutoffs F1, F2, piezo-resistance RV1, RV2, discharge tube G1, G2, described Thermal Cutoffs F1, piezo-resistance RV1, discharge tube G1 series connection, one end connects the live wire of power supply, other end ground connection, described Thermal Cutoffs F2, piezo-resistance RV2, discharge tube G2 series connection, one end connects the zero line of power supply, other end ground connection.Intermediate decoupling protective circuit between power supply input/output terminal comprises inductance L 1 and the inductance L 2 being connected on respectively on live wire and zero line.Rear class end protective circuit between power supply input/output terminal comprises the Transient Suppression Diode TVS that is connected in parallel on power output end.
Prime thunder and lightning leadage circuit between the gigabit network signal input/output terminal of the technical program comprises discharge tube G3 to G10, and one end of described discharge tube G3 to G10 is connected with 8 pins of gigabit network signal input respectively, other end ground connection.Intermediate decoupling protective circuit between gigabit network signal input/output terminal comprises that the resistance R 3 being connected on respectively between 8 pins of gigabit network signal input and 8 pins of gigabit network signal output is to R10.Rear class end protective circuit between gigabit network signal input/output terminal comprises and is connected in parallel on the pin one of gigabit network signal output and the TVS chip 1 between pin 6, and is connected in parallel on the pin 4 of network signal output and the TVS chip 2 between pin 8.
The utility model compared with prior art, is a kind ofly to have innovation, advanced, highly reliable high speed signal lightning protection device, and possesses following advantage:
1, rationally, transmission performance is superior in planning.
2, the utility model is selected high-quality lightning protection component, meets gigabit network signal high-speed transfer performance completely, after mounted with lightning protection device, still can meet system transmission requirement.
3, the utility model has adopted three grades of protection, and prime is the lightning current main channel of releasing, and middle is decoupling protection, and rear class is the accurate protection of end, and lightning protection effect is better.Through three grades of protection Designs, the through-current capacity of lightning protection device can be higher, guarantees system safety operation.
4, the utility model considers user's request, in order to be user-friendly to, power supply and network signal lightning protection is combined effectively.
Accompanying drawing explanation
Fig. 1 is electrical schematic diagram of the present utility model;
Fig. 2 is circuit diagram of the present utility model.
Embodiment
Introduce in detail specific embodiment of the utility model below; the two-in-one anti-lightening protector of MDI of the present utility model; between the input/output terminal of power supply, be provided with power supply circuit; between gigabit network signal input/output terminal, be provided with signal guard circuit; and the signal guard circuit of power supply circuit and gigabit networking all adopts three grades of protection, be respectively prime thunder and lightning leadage circuit, intermediate decoupling protective circuit, rear class end protective circuit.
Prime thunder and lightning leadage circuit between power supply input/output terminal comprises: Thermal Cutoffs F1, F2, piezo-resistance RV1, RV2, discharge tube G1, G2, wherein Thermal Cutoffs F1, piezo-resistance RV1, discharge tube G1 connect mutually, one end connects the live wire of power supply, other end ground connection, and Thermal Cutoffs F2, piezo-resistance RV2, discharge tube G2 connect mutually, one end connects the zero line of power supply, other end ground connection.The prime thunder and lightning leadage circuit of power supply input/output terminal is main protection circuit, plays the effect of release thunder and lightning and electromagnetic pulse, and it has guaranteed large through-flow releasing, and has also guaranteed that loop is without afterflow simultaneously.When piezo-resistance RV1 both end voltage during lower than its threshold voltage its resistance very large, be equivalent to open circuit; When piezo-resistance RV1 both end voltage surpasses its threshold voltage, its resistance becomes very little, is equivalent to short circuit.When there is thunderbolt, induction lightening input voltage moment can become and surpass very greatly its threshold voltage, and now piezo-resistance RV1 is equivalent to a wire; if pressure-sensitive damage; Thermal Cutoffs F1 high temperature is blown in its moment temperature rise meeting, thereby circuit below of protection avoids occurring on fire and initiation fire.
Intermediate decoupling protective circuit between power supply input/output terminal comprises inductance L 1 and the inductance L 2 being connected on respectively on live wire and zero line.This middle rank decoupling protective circuit has played the effect of suppressor pulse and time delay.Guarantee to make first order circuit operation before the not breakdown damage of final stage protection circuit.
Rear class end protective circuit between power supply input/output terminal comprises the Transient Suppression Diode TVS that is connected in parallel on power output end.
Prime thunder and lightning leadage circuit between network signal input/output terminal comprises discharge tube G3 to G10, and one end of discharge tube G3 to G10 is connected with 8 pins of network signal input respectively, other end ground connection.Intermediate decoupling protective circuit between network signal input/output terminal comprises that the resistance R 3 being connected on respectively between 8 pins of network signal input and 8 pins of network signal output is to R10.Rear class end protective circuit between network signal input/output terminal comprises and is connected in parallel on the pin one of network signal output and the TVS chip 1 between pin 6, and is connected in parallel on the pin 4 of network signal output and the TVS chip TVS2 between pin 8.Wherein, discharge tube G5, G6 guarantee large through-flow release and without afterflow, R3 plays decoupling protective effect; TVS chip TVS1 and TVS chip TVS2 play the end protective effect of releasing, and residual voltage is met the requirements, and G6 plays isolator the current potential interference effect of playing a reversed role, and in the present embodiment, it is slvu2.8-4 low-capacitance TVS array that TVS chip adopts model.
Claims (6)
1. the two-in-one anti-lightening protector of MDI, comprise the power supply circuit of being located between power supply input/output terminal and be located at the signal guard circuit between gigabit network signal input/output terminal, it is characterized in that, the signal guard circuit of described power supply circuit and gigabit networking all adopts three grades of protection, is respectively prime thunder and lightning leadage circuit, intermediate decoupling protective circuit, rear class end protective circuit;
Prime thunder and lightning leadage circuit between described power supply input/output terminal comprises: Thermal Cutoffs F1, F2, piezo-resistance RV1, RV2, discharge tube G1, G2, described Thermal Cutoffs F1, piezo-resistance RV1, discharge tube G1 series connection, one end connects the live wire of power supply, other end ground connection, described Thermal Cutoffs F2, piezo-resistance RV2, discharge tube G2 series connection, one end connects the zero line of power supply, other end ground connection;
Intermediate decoupling protective circuit between described power supply input/output terminal comprises inductance L 1 and the inductance L 2 being connected on respectively on live wire and zero line.
2. the two-in-one anti-lightening protector of MDI as claimed in claim 1, is characterized in that, the rear class end protective circuit between described power supply input/output terminal comprises the Transient Suppression Diode TVS that is connected in parallel on power output end.
3. the two-in-one anti-lightening protector of MDI as claimed in claim 2; it is characterized in that; prime thunder and lightning leadage circuit between described gigabit network signal input/output terminal comprises discharge tube G3 to G10; one end of described discharge tube G3 to G10 is connected with 8 pins of network signal input respectively, other end ground connection.
4. the two-in-one anti-lightening protector of MDI as claimed in claim 3; it is characterized in that, the intermediate decoupling protective circuit between described gigabit network signal input/output terminal comprises that the resistance R 3 being connected on respectively between 8 pins of gigabit network signal input and 8 pins of gigabit network signal output is to R10.
5. the two-in-one anti-lightening protector of MDI as claimed in claim 4; it is characterized in that; rear class end protective circuit between described gigabit network signal input/output terminal comprises and is connected in parallel on the pin one of gigabit network signal output and the TVS chip TVS1 between pin 6, and is connected in parallel on the pin 4 of gigabit network signal output and the TVS chip TVS2 between pin 8.
6. the two-in-one anti-lightening protector of MDI as claimed in claim 5, is characterized in that, it is slvu2.8-4 low-capacitance TVS array that described TVS chip adopts model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267429.2U CN203895970U (en) | 2014-05-23 | 2014-05-23 | MDI two-in-one anti-thunder protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420267429.2U CN203895970U (en) | 2014-05-23 | 2014-05-23 | MDI two-in-one anti-thunder protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203895970U true CN203895970U (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420267429.2U Expired - Fee Related CN203895970U (en) | 2014-05-23 | 2014-05-23 | MDI two-in-one anti-thunder protector |
Country Status (1)
| Country | Link |
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| CN (1) | CN203895970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347079A (en) * | 2018-12-26 | 2019-02-15 | 深圳市科安技术有限公司 | A kind of two-in-one lightning with voltage conversion function |
-
2014
- 2014-05-23 CN CN201420267429.2U patent/CN203895970U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347079A (en) * | 2018-12-26 | 2019-02-15 | 深圳市科安技术有限公司 | A kind of two-in-one lightning with voltage conversion function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141022 |
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| CF01 | Termination of patent right due to non-payment of annual fee |