CN2507172Y - Lightning protector for computer - Google Patents
Lightning protector for computer Download PDFInfo
- Publication number
- CN2507172Y CN2507172Y CN 01265242 CN01265242U CN2507172Y CN 2507172 Y CN2507172 Y CN 2507172Y CN 01265242 CN01265242 CN 01265242 CN 01265242 U CN01265242 U CN 01265242U CN 2507172 Y CN2507172 Y CN 2507172Y
- Authority
- CN
- China
- Prior art keywords
- piezo
- lightning protection
- resistance
- thermistor
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Emergency Protection Circuit Devices (AREA)
Abstract
A computer lightning protector can be widely applied to lightening protection of a variety of network terminal equipment of wire communication. An input socket is arranged on the left end of a plastic box and an output socket is arranged on the right end. The box is provided with a circuit board, whereon three thermistors of positive temperature coefficient, two piezoresistors, a current-limiting resistance, a bridge rectifier and an LED indicating lamp are positioned. The utility model has a novel concept, a simple structure, and a good effect of lightening protection, is easy to produce and to generalize.
Description
The utility model relates to a kind of lightning protection facility of wire communication equipment, specifically a kind of computer equipment lightning protection device that utilizes the telephone line transmission.
The lightning protection measures of existing communication apparatus is that the lightning current on the telephone line is fast and effeciently introduced the earth, indoor must have reliable earth electrode, requires earth resistance to be not more than 5 Ω, therefore not only expensive, but also having increased many troubles, general ordinary family user also can't accomplish.
The purpose of this utility model provides a kind of computer lightning protection device that need not to connect region.
Scheme of the present utility model is made up of plastic casing, input and output socket, thermistor, piezo-resistance, bridge rectifier, light-emitting diode, fusing fuse etc.Its design feature is: the left end of plastic casing is provided with input socket, right-hand member is provided with accessory power outlet, be provided with circuit board in the box, the circuit board left upper end is provided with the thermistor of a positive temperature coefficient, middle part, box body front side is provided with the fusing fuse, the circuit board upper right side is provided with current-limiting resistance, and bottom righthand side is provided with bridge rectifier and LED light, and LED light is exposed the plastic casing top panel.Circuit board middle part be provided with up and down two thermistors and about two piezo-resistances, wherein be up and down the thermistor of two positive temperature coefficients.
The utility model has the advantages that reasonable in designly, simple in structure, lightning protection effect is good, is easy to produce and promote, and can be widely used in the lightning protection of communication line terminal equipment.
Be described further below in conjunction with accompanying drawing:
Fig. 1 is a computer lightning protection device structural representation;
Fig. 2 is a computer lightning protection device electrical schematic diagram.
The left end of plastic casing 12 is provided with input socket 1 in Fig. 1, right-hand member is provided with accessory power outlet 2, be provided with circuit board 13 in the box, the circuit board left upper end is provided with the thermistor 3 of a positive temperature coefficient, middle part, box body front side is provided with fusing fuse 4, upper right side is provided with current-limiting resistance 9, bottom righthand side is provided with bridge rectifier 10 and LED light 11, the LED lamp exposes the plastic casing top panel, the circuit board middle part is provided with thermistor and piezo-resistance, wherein be respectively up and down the thermistor 6 and 7 of two positive temperature coefficients, about be respectively two piezo-resistances 5 and 8.
Among Fig. 2, the telephone wire electric current constitutes one-level lightning protection loop through input socket 1, thermistor 3, piezo-resistance 5 and fusing fuse 4.Line current constitutes secondary lightning protection loop through thermistor 3 and 6, piezo-resistance 8, thermistor 7, fuse 4.After current-limiting resistance 9 is series at bridge rectifier 10 inputs, be parallel to the two ends of piezo-resistance 8 again, the both positive and negative polarity of LED light 11 is connected on the both positive and negative polarity of output of rectifier 10, constitutes telephone line working station indicator circuit.Accessory power outlet 2 two ends are connected in parallel on piezo-resistance 8 two ends, provide signal source to terminal equipment.During use, telephone line plug inserts lightning protection device input socket 1, and computer modulator-demodulator plug inserts lightning protection device accessory power outlet 2.
When telephone line meets with thunderbolt; input socket 1 two-end-point voltage raises suddenly; piezo-resistance 5 and 8 response speeds with nanosecond present low resistance; the current spikes of thermistor 3,6 and 7 of flowing through rises, and three resistances surges are limited in accessory power outlet 2 both end voltage in the 160V rapidly in the short time; thereby fast and effeciently stopped the destruction of lightning voltage to communication apparatus; for the bigger thunder and lightning of energy, terminal equipment is protected in 4 quick-breaks of fusing fuse effectively.LED light 11 is just often bright at communication line, goes out when fuze 4 fusing backs or line broken circuit, has the function of monitoring telephone line work state.Under the telephone line normal condition, no matter be voice signal, data-signal or bell signal, the same through unblocked ground of the equal energy of computer lightning protection device incoming terminal with the effect that directly communicates, do not influence online computing speed.
Claims (3)
1, a kind of computer lightning protection device, by plastic casing, circuit board, input socket, accessory power outlet, thermistor, piezo-resistance, the fusing fuse, bridge rectifier, formations such as LED light, it is characterized in that: the left end of plastic casing 12 is provided with input socket 1, right-hand member is provided with accessory power outlet 2, be provided with circuit board 13 in the box, the circuit board left upper end is provided with a semistor 3, upper right side is provided with current-limiting resistance 9, bottom righthand side is provided with bridge rectifier 10 and LED light 11, the LED lamp exposes the box body top panel, the circuit board middle part is provided with two thermistors and two piezo-resistances, wherein be respectively up and down two semistors 6 and 7, about be respectively two piezo-resistances 5 and 8, box body front side middle part is provided with fusing fuse 4.
2, according to the described computer lightning protection device of claim 1, it is characterized in that: the communication line electric current is through input socket 1, thermistor 3, pressure-sensitive circuit 5 and fusing fuse 4 constitute one-level lightning protection loop, and line current constitutes secondary lightning protection loop through thermistor 3 and 6, piezo-resistance 8, thermistor 7, fuse 4.
3, according to the described computer lightning protection device of claim 1, it is characterized in that: after current-limiting resistance 9 is series at bridge rectifier 10 inputs, be parallel to the two ends of piezo-resistance 8 again, the both positive and negative polarity of LED light 11 is connected on the both positive and negative polarity of output of rectifier 10, constitute the line work indicator light circuit, accessory power outlet 2 two ends are connected in parallel on piezo-resistance 8 two ends, provide signal source to terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265242 CN2507172Y (en) | 2001-09-27 | 2001-09-27 | Lightning protector for computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01265242 CN2507172Y (en) | 2001-09-27 | 2001-09-27 | Lightning protector for computer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2507172Y true CN2507172Y (en) | 2002-08-21 |
Family
ID=33672225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01265242 Expired - Fee Related CN2507172Y (en) | 2001-09-27 | 2001-09-27 | Lightning protector for computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2507172Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895107A (en) * | 2010-08-16 | 2010-11-24 | 宁波市镇海华泰电器厂 | Anti thunder strike circuit for computer |
| CN106228070A (en) * | 2016-06-29 | 2016-12-14 | 江海职业技术学院 | A kind of computer information processing system |
| CN106953211A (en) * | 2017-05-05 | 2017-07-14 | 南京普天鸿雁电器科技有限公司 | Elongation line socket |
-
2001
- 2001-09-27 CN CN 01265242 patent/CN2507172Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895107A (en) * | 2010-08-16 | 2010-11-24 | 宁波市镇海华泰电器厂 | Anti thunder strike circuit for computer |
| CN101895107B (en) * | 2010-08-16 | 2012-05-23 | 宁波市镇海华泰电器厂 | Anti thunder strike circuit for computer |
| CN106228070A (en) * | 2016-06-29 | 2016-12-14 | 江海职业技术学院 | A kind of computer information processing system |
| CN106953211A (en) * | 2017-05-05 | 2017-07-14 | 南京普天鸿雁电器科技有限公司 | Elongation line socket |
| CN106953211B (en) * | 2017-05-05 | 2022-11-01 | 南京普天鸿雁电器科技有限公司 | Extended line socket |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |