CN201066744Y

CN201066744Y - Computer network cable lightning protector

Info

Publication number: CN201066744Y
Application number: CNU2007200218079U
Authority: CN
Inventors: 李宏光; 白艳梅; 马秋明
Original assignee: Ludong University
Current assignee: Ludong University
Priority date: 2007-05-08
Filing date: 2007-05-08
Publication date: 2008-05-28
Anticipated expiration: 2017-05-08

Abstract

An anti-thunderbolt apparatus of computer network cable consists of a crust, two RJ45 sockets and a USB interface at the crust and a group of relays inside the crust. Two ends of a contact of each relay of a relay group are respectively connected with the corresponding wires of the RJ45 socket for linking an external internet and the RJ45 socket for connecting a computer. The controlled voltage of the relay group is provided by a power cord of a USB socket. The utility model can ensures that when the computer is working, the relays can be closed to ensure that the network cable is conducted, and when the computer is stopped, the relays are disconnected automatically to ensure that the network cable is disconnected with the computer, which prevents the possible damage towards the computer caused by the thunderbolt through the network cable under the weather of thunder storm.

Description

Computer netting twine lightning protection device

Technical field

The utility model relates generally to computer and network equipment field, particularly a kind of device that can cut off the netting twine connection behind shut down of computer automatically.

Background technology

Computer has entered common people house, in some thunder and lightning prone areas, the lightning protection measures of computer is most important, otherwise, in case be struck by lightning, be easy to cause the damage of computer, most people know for fear of thunderbolt, when thundery sky, need disconnect computer power, the cut-out thunder and lightning enters the path of computer by power line, even there are many patented technologies to be devoted to the solution of this problem, as the patent No. is that 00217902.4 patented technologies such as " computer private jacks " is exactly to cut off being connected of external power and computer behind shut down of computer automatically, in fact, thunder and lightning is except entering the computer by power line, can also enter computer by other and the extraneous circuit that is connected causes computer to damage, relatively the mode of safety is when thundery sky, the cut-out computer is connected with all of outside line, what the patent No. was that " computer lightning protection device " patented technology of 01265242.3 solves is the lightning protection problem that computer connects telephone wire, and at present computer be connected many with the external world be netting twine, so, invent a kind ofly when shut down of computer, cut off device that outside netting twine is connected with computer automatically for pre-anti-lightning strike necessary.

Summary of the invention

The purpose of this utility model provides a kind of computer netting twine lightning protection device of being struck by lightning behind the shut down of computer avoided, comprise shell and two RJ45 sockets, one of them is connected with external the Internet, another is connected with computer, also comprise a USB socket, this socket can link to each other with USB socket on the computer by the USB connecting line, a relay group is arranged on the internal circuit board of the present utility model, the two ends of the contact of each relay are connected with the RJ45 socket that connects external the Internet and the corresponding line of the RJ45 socket that is connected computer respectively, the control end of relay group is connected on the power line of USB socket, its lightning protection principle is: when booting computer, the computer USB power line is powered to relay, relay closes, netting twine conducting, computer operate as normal; Behind shut down of computer, relay outage, netting twine disconnects, and cuts off being connected of outside netting twine and computer automatically, avoids thunder and lightning by netting twine computer to be caused damage.

Beneficial effect:

The beneficial effects of the utility model are: avoid being struck by lightning by netting twine behind the shut down of computer.

Description of drawings

Fig. 1 is the outside drawing of this utility model.

Fig. 2 is the schematic diagram of this utility model.

Specific embodiments

The RJ45 connector that connects the internet netting twine is inserted respectively in the RJ45 socket at these utility model two ends with the RJ45 connector that is connected computer, and with USB socket that connects computer of a USB line, one connects this utility model and gets final product.Computer work, USB socket power line has electricity, relay closes, netting twine conducting; Behind shut down of computer, USB socket power line does not have electricity, the relay outage, and relay disconnects, and netting twine cuts off.

Claims

1. computer netting twine lightning protection device, comprise shell and two RJ45 sockets, it is characterized in that: a relay group is arranged on the wiring board, and the two ends of the contact of its each relay are connected with the RJ45 socket that connects external the Internet and the corresponding line of the RJ45 socket that is connected computer respectively; One USB socket is arranged on this device, can link to each other with USB socket on the computer by the USB connecting line; The control end of described relay group is connected on the power line of USB socket.