CN102709897A - Network card protective device - Google Patents
Network card protective device Download PDFInfo
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- CN102709897A CN102709897A CN2012101545815A CN201210154581A CN102709897A CN 102709897 A CN102709897 A CN 102709897A CN 2012101545815 A CN2012101545815 A CN 2012101545815A CN 201210154581 A CN201210154581 A CN 201210154581A CN 102709897 A CN102709897 A CN 102709897A
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Abstract
The invention discloses a network card protective device which comprises a computer, broadband network cables, a lightning arrester and a power socket. The lightning arrester comprises triggering diodes D1, D2, D3 and D4 and an alternating current (AC) relay J; one ends of the four triggering diodes are connected with orange-white, orange, green-white and green net cables of the broadband network cables and the other ends are grounded; one ends of four groups of normally closed contact switches of the AC relay J are connected with the four triggering diodes and the other ends are grounded; the power supply plug V1 of the AC relay J share a socket P with the power supply plug V2 of the computer; the four groups of the normally closed contact switches of the AC relay J are off when a main switch K on the socket P is on; and the four groups of the normally closed contact switches of the AC relay J are on when a main switch K on the socket P is off. The network card protective device has the advantages that a network card can be effectively prevented from being struck by lightning, potential safety hazard can be eliminated, and economic loss can be reduced.
Description
Technical field
The present invention relates to a kind of network interface card protective device, the particularly a kind of network interface card protective device that can take shelter from the thunder.
Background technology
Along with popularizing of computer broadband, network has been come into huge numbers of families, and computer network becomes an indispensable part in people's life.The broadband has in use also run into many troubles, and mobile broadband is after broadband line is registered one's residence, and directly is inserted on the network interface card mouth of computer; In summer during thunderstorm season; Thunder and lightning can directly get into our computer along broadband line, the network interface card of gently then breaking, and heavy then mainboard that connect computer is broken together.If do not note, possibly break repeatedly in 1 year, correspondingly brought potential safety hazard and loss economically to us.
Summary of the invention
The purpose of this invention is to provide a kind of network interface card protective device, broken by thunder and lightning to prevent the computer network interface card.
For addressing the above problem, the technical scheme that the present invention adopts is:
A kind of network interface card protective device; Comprise the computer of being with network interface card, be connected broadband netting twine, the lightning arrester on the computer network interface card mouth and connect the supply socket that power supply is used to supply power; Said lightning arrester comprises four triggering diode D1, D2, D3, D4 and an AC relay J; One end of four triggering diodes respectively with the broadband netting twine in color, orange white, green 4 white, green netting twines for orange be connected; Other end ground connection, an end of four groups of normally-closed contact switches of AC relay J connects four triggering diodes, other end ground connection respectively; The power supply plug V1 of AC relay J and the shared socket P of the attaching plug V2 of computer; Master switch K on the closed socket P; Four groups of normally-closed contact switches of AC relay J break off the master switch K on the outlets P, four groups of normally-closed contact switch conductions of AC relay J.
Adopt network interface card protective device of the present invention, can effectively avoid the phenomenon that summer, the computer network interface card was broken by thunder and lightning, eliminate safe hidden trouble, reduce loss economically.
Description of drawings
Fig. 1 is the circuit structure diagram of network interface card protective device of the present invention.
Embodiment
According to Fig. 1 embodiment of the present invention is described below.
Eight connecting lines are arranged in the broadband netting twine 2, and general family expenses broadband all adopts EIA/TIA 568B standard to make netting twine, that is: white, the orange of orange, green white, blue, blue white, green, palm fibre is white, brown.
All use four netting twines transmission data below 100,000,000 networks, the network that household PC uses all is below 100,000,000 basically, only uses white, the orange, green white, green of orange, i.e. 1,2,3,6 four netting twine, and all the other four netting twines do not use, and are not input in the computer yet.
During use, broadband netting twine 2 directly is connected on the network interface card mouth 3 of computer 1 and gets final product.
Lightning arrester comprises four triggering diode D1, D2, D3, D4 and an AC relay J, and it is the diac of DB3 that four triggering diodes are selected model for use, and forward and reverse trigger voltage is 28V.One end of four triggering diodes respectively with broadband netting twine 2 in 1,2,3,6 four netting twine be connected other end ground connection.One end of four groups of normally-closed contact switches of AC relay J also respectively with broadband netting twine 2 in 1,2,3,6 four netting twine be connected other end ground connection.On AC relay J, be in series with insurance RD.The power supply plug V1 of AC relay J and the shared socket P of the attaching plug V2 of computer 1, socket P connects the 220V AC power, on socket P, is provided with master switch K.
Lightning arrester divides two kinds of operating states, i.e. booting computer state and shut down of computer state.
The master switch K of closed socket P, computer 1 start operate as normal.Four groups of normally-closed contact switches of AC relay J break off, and the signal of broadband netting twine 2 normally is input to the computer network interface card, because the netting twine operating voltage is very low, can not make the diac conducting during operate as normal.As thunder and lightning when netting twine 2 gets into along the broadband; D1, D2, D3, four diac conductings immediately of D4; With the trigger voltage of netting twine voltage clamp in diac, make that the voltage that is input to network interface card can be not too high, protected the safety of network interface card and computer effectively.
Claims (1)
1. network interface card protective device; Comprise the computer (1) of being with network interface card, be connected broadband netting twine (2), the lightning arrester on the computer network interface card mouth (3) and connect the supply socket (P) that power supply is used to supply power; It is characterized in that: said lightning arrester comprises four triggering diodes (D1, D2, D3, D4) and an AC relay (J); One end of four triggering diodes is that orange is white, orange, green 4 white, green netting twines are connected with the middle color of broadband netting twine (2) respectively; Other end ground connection, an end of four groups of normally-closed contact switches of AC relay (J) connects four triggering diodes, other end ground connection respectively; The power supply plug (V1) of AC relay (J) and the shared socket of attaching plug (V2) (P) of computer (1); Master switch (K) on the closed socket (P); Four groups of normally-closed contact switches of AC relay (J) break off; Master switch (K) on the outlets (P), four groups of normally-closed contact switch conductions of AC relay (J).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154581.5A CN102709897B (en) | 2012-05-18 | 2012-05-18 | Network card protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210154581.5A CN102709897B (en) | 2012-05-18 | 2012-05-18 | Network card protective device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102709897A true CN102709897A (en) | 2012-10-03 |
| CN102709897B CN102709897B (en) | 2014-10-15 |
Family
ID=46902515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210154581.5A Active CN102709897B (en) | 2012-05-18 | 2012-05-18 | Network card protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102709897B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11225433A (en) * | 1998-02-04 | 1999-08-17 | Ntt Power And Building Facilities Inc | Lighting surge protector |
| CN101488666A (en) * | 2008-01-18 | 2009-07-22 | 研祥智能科技股份有限公司 | Network port lightning preventing circuit and RJ45 interface apparatus thereof |
| CN201556937U (en) * | 2009-11-26 | 2010-08-18 | 昆明理工大学 | Network lightning protection device |
| CN201860104U (en) * | 2010-08-16 | 2011-06-08 | 宁波市镇海华泰电器厂 | Thunder-proof circuit for computer |
| CN202206133U (en) * | 2011-06-15 | 2012-04-25 | 王建兵 | Lightning protection isolator for direct-to-home signal line and power socket with same |
| CN202564938U (en) * | 2012-05-18 | 2012-11-28 | 卫斌鹏 | Computer lightning arrester |
-
2012
- 2012-05-18 CN CN201210154581.5A patent/CN102709897B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11225433A (en) * | 1998-02-04 | 1999-08-17 | Ntt Power And Building Facilities Inc | Lighting surge protector |
| CN101488666A (en) * | 2008-01-18 | 2009-07-22 | 研祥智能科技股份有限公司 | Network port lightning preventing circuit and RJ45 interface apparatus thereof |
| CN201556937U (en) * | 2009-11-26 | 2010-08-18 | 昆明理工大学 | Network lightning protection device |
| CN201860104U (en) * | 2010-08-16 | 2011-06-08 | 宁波市镇海华泰电器厂 | Thunder-proof circuit for computer |
| CN202206133U (en) * | 2011-06-15 | 2012-04-25 | 王建兵 | Lightning protection isolator for direct-to-home signal line and power socket with same |
| CN202564938U (en) * | 2012-05-18 | 2012-11-28 | 卫斌鹏 | Computer lightning arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102709897B (en) | 2014-10-15 |
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| ASS | Succession or assignment of patent right |
Owner name: WEI BINPENG JINCHENG POWER SUPPLY COMPANY, STATE G Effective date: 20140317 Owner name: STATE GRID CORPORATION OF CHINA Free format text: FORMER OWNER: WEI BINPENG Effective date: 20140317 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Free format text: CORRECT: ADDRESS; FROM: 048103 JINCHENG, SHAANXI PROVINCE TO: 100031 DONGCHENG, BEIJING |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20140317 Address after: 100031 West Chang'an Avenue, Beijing, No. 86 Applicant after: State Grid Corporation of China Applicant after: Wei Binpeng Applicant after: Jincheng Power Supply Company, State Grid Shanxi Electric Power Company Address before: Yangcheng County in Shanxi province 048103 Jincheng city run town Wangcun Village Applicant before: Wei Binpeng |
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| C14 | Grant of patent or utility model | ||
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