CN102709897B - Network card protective device - Google Patents
Network card protective device Download PDFInfo
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- CN102709897B CN102709897B CN201210154581.5A CN201210154581A CN102709897B CN 102709897 B CN102709897 B CN 102709897B CN 201210154581 A CN201210154581 A CN 201210154581A CN 102709897 B CN102709897 B CN 102709897B
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- relay
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- closed contact
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- 230000001681 protective effect Effects 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
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, particularly a kind of network interface card protective device that can be lightning-arrest.
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.Broadband has in use also run into many troubles, and mobile broadband is after broadband line is registered one's residence, and is directly inserted on the network interface card mouth of computer, in summer during thunderstorm season, thunder and lightning can directly enter along broadband line our computer, and the network interface card of gently breaking is heavy break with together with the mainboard of computer.If do not noted, within 1 year, may break repeatedly, correspondingly to us, brought potential safety hazard and loss economically.
Summary of the invention
The object of this invention is to provide a kind of network interface card protective device, to prevent that computer network interface card from being broken by thunder and lightning.
For addressing the above problem, the technical solution used in the present invention is:
A kind of network interface card protective device, comprise computer with network interface card, be connected to broadband netting twine, the lightning arrester on computer network interface card mouth and connect the supply socket of power supply for powering, described lightning arrester comprises four triggering diode 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 color in the netting twine of broadband respectively, other end ground connection, one end of tetra-groups of normally-closed contact switches of AC relay J connects respectively four triggering diodes, other end ground connection; The attaching plug V2 for plug V1 and computer of AC relay J shares socket P, master switch K on closed socket P, four groups of normally-closed contact switches of AC relay J disconnect, and disconnect the master switch K on socket 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, computer network interface card was broken by thunder and lightning, eliminate safe hidden trouble, reduce loss economically.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of network interface card protective device of the present invention.
Embodiment
According to Fig. 1, the specific embodiment of the present invention is described below.
In broadband netting twine 2, have eight connecting lines, 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.
100000000 networks are all used four network cable transmission data below, and the network that household PC uses is all below 100,000,000 substantially, only use that orange is white, orange, green white, green, i.e. 1,2,3,6 four netting twine, and all the other four netting twines are not used, and are not input in computer yet.
During use, broadband netting twine 2 is directly connected on the network interface card mouth 3 of computer 1.
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, and forward and reverse trigger voltage is 28V.One end of four triggering diodes is connected with 1,2,3,6 four netting twine in broadband netting twine 2 respectively, other end ground connection.One end of tetra-groups of normally-closed contact switches of AC relay J is also connected with 1,2,3,6 four netting twine in broadband netting twine 2 respectively, other end ground connection.On AC relay J, be in series with insurance RD.The attaching plug V2 for plug V1 and computer 1 of AC relay J shares socket P, and socket P connects 220V AC power, is provided with master switch K on socket P.
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, the normal work of computer 1 start.Four groups of normally-closed contact switches of AC relay J disconnect, and the signal of broadband netting twine 2 is normally input to computer network interface card, because netting twine operating voltage is very low, while normally working, can not make diac conducting.When having thunder and lightning when broadband netting twine 2 enters; D1, D2, D3, tetra-diac conductings immediately of D4; by netting twine voltage clamping, in the trigger voltage of diac, the voltage that makes to be input to network interface card can be not too high, effectively protected the safety of network interface card and computer.
Close computer 1; disconnect the master switch K of socket P; four groups of normally-closed contact switch conductions of AC relay J; broadband netting twine 2 directly and ground wire join; when having thunder and lightning to enter along broadband netting twine 2; by direct ground connection, protected the safety of computer network interface card and D1, D2, D3, tetra-diacs of D4 completely, reached lightning-arrest object.
Claims (1)
1. a network interface card protective device, comprise the computer (1) with network interface card, be connected to the broadband netting twine (2) on computer network interface card mouth (3), lightning arrester, and the supply socket (P) of connection power supply for powering, it is characterized in that: described lightning arrester comprises four triggering diode (D1, D2, D3, D4) and one AC relay (J), one end of four triggering diodes is that orange is white with the middle color of broadband netting twine (2) respectively, orange, green white, 4 green netting twines connect, other end ground connection, one end of four groups of normally-closed contact switches of AC relay (J) connects respectively four triggering diodes, other end ground connection, the shared socket (P) of attaching plug (V2) with computer (1) for plug (V1) of AC relay (J), master switch (K) on closed socket (P), four groups of normally-closed contact switches of AC relay (J) disconnect, disconnect the master switch (K) on socket (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 CN102709897A (en) | 2012-10-03 |
| CN102709897B true 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 |
|---|---|
| CN102709897A (en) | 2012-10-03 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 | ||
| COR | Change of bibliographic data |
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 | ||
| GR01 | Patent grant |