CN201038751Y - Lightning protection module - Google Patents
Lightning protection module Download PDFInfo
- Publication number
- CN201038751Y CN201038751Y CNU2007201065738U CN200720106573U CN201038751Y CN 201038751 Y CN201038751 Y CN 201038751Y CN U2007201065738 U CNU2007201065738 U CN U2007201065738U CN 200720106573 U CN200720106573 U CN 200720106573U CN 201038751 Y CN201038751 Y CN 201038751Y
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- Prior art keywords
- pressure limiting
- lightning
- gas discharge
- discharge tube
- pressure
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- 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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Abstract
The utility model discloses a lightningproof module, which comprises a signal input and output interface and a first pressure restricting circuit. The first pressure restricting circuit comprises a gas discharge tube that is electrically connected and a pressure restricting resistance. The gas discharge tube is connected with the signal input end interface, while the pressure restricting circuit is connected with the signal output end interface. Furthermore, a second pressure restricting circuit is arranged between the first pressure restricting resistance and the signal input end interface. After being subject to the first low pressure restriction through the gas discharge tube, the induced surge or lightning enters into the second pressure restricting circuit through the pressure restricting resistance to restrict the pressure and then forms the discharge loop with the grounding plates. The lightningproof module can ensure the computer data signals and communication signals can get the effective lightning and surge resistance protection.
Description
Technical field
The utility model relates to a kind ofly provides the protective device of lightning protection, anti-surge, specifically a kind of lightning-protection module bar that is used for phone or computer lightning protection for computer data, communication data etc.
Background technology
At present popular lightening arresting method is to adopt outside lightning protection, and as the outside lightning-protection system that adopts lightning protection pin (or lightning protection band, lightning conduction), downlead and grounding system to constitute, this lightning-protection system is mainly used in the protection building and avoids thunderbolt to cause fire incident.But, it is not enough that lightning protection only has outside lightning protection, lightning wave can be invaded metallic conduit of each electrical path such as power line, holding wire etc., high voltage and surge voltage by its generation have great harm to communication apparatus, network, information, system, gently then damage circuit, heavy then damage equipment, and even systemic breakdown cause immeasurable loss.
Along with the continuous development of science and technology, increasing family brings into use the Smart Home integrated system, and the inside comprises modules such as computer module, phone module, cable TV and Digital Television.And thunderstorm weather can impact computer, phone, TV usually.Therefore, must carry out internal lighting protection, equipment be caused damage to prevent thunder and lightning and the invasion of other internal overvoltages.
Summary of the invention
In order to overcome above-mentioned defective of the prior art, the utility model provides a kind of lightning-protection module, can make computer data signal, signal of communication obtain effective lightning protection, anti-surge protection.
The technical scheme that the utility model provides is as follows:
A kind of lightning-protection module, comprise the signal input output interface and first pressure limiting circuit, described first pressure limiting circuit comprises into the gas discharge tube and the pressure limiting resistance of electrical connection, gas discharge tube is connected with the signal input part interface, pressure limiting resistance is connected with the signal output part interface, and inductive surge or thunder and lightning enter pressure limiting resistance and carry out current limliting after gas discharge tube carries out pressure limiting.
Further, between first pressure limiting circuit and signal input part interface, be provided with second pressure limiting circuit, be provided with second pressure limiting circuit, inductive surge or thunder and lightning are after gas discharge tube carries out the first low pressure limiting, enter second pressure limiting circuit through pressure limiting resistance and carry out pressure limiting, form discharge loop with ground strip simultaneously.Described gas discharge tube and pressure limiting resistance are provided with for series connection.
Inner lightning-arrest in order to realize, need be linked into computer data signal, signal of communication etc. on computer of the present utility model or the phone lightning-protection module the loss that causes with the high voltage that prevents to produce and surge voltage to computer, phone etc. by thunder and lightning.
Description of drawings
Fig. 1 is the electrical schematic diagram of a kind of embodiment of the utility model.
Specific embodiment
As shown in Figure 1; what the overvoltage protection of present embodiment lightning-protection module adopted is the two-stage protected mode; comprise signal input part interface RJ1; signal output part interface RJ2; first pressure limiting circuit and second pressure limiting circuit; first pressure limiting circuit comprises into the gas discharge tube F1 of electrical connection; F2 and pressure limiting resistance R 1; R2; R3; R4; gas discharge tube F1; F2 is connected with signal input part interface RJ1; pressure limiting resistance R 1; R2; R3; R4 is connected with signal output part interface RJ2; second pressure limiting circuit is arranged between first pressure limiting circuit and the signal input part interface RJ2, and this second pressure limiting circuit is made up of VD clamp circuit and diode D1-D10.First pressure limiting circuit is thick protective circuit, and second pressure limiting circuit is thin protective circuit, and thick protective circuit can discharge the overvoltage surge of big discharge capacity, and thin protective circuit is used to discharge the overvoltage surge of little discharge capacity.Inductive surge or thunder and lightning enter second pressure limiting circuit through pressure limiting resistance R 1, R2, R3, R4 and carry out pressure limiting after gas discharge tube F1, F2 carry out the first low pressure limiting, form discharge loop with ground strip simultaneously.
Signal input output interface can be selected interfaces such as RJ11 or RJ45 for use, and the gas discharge tube that can adopt 5-10KA in first pressure limiting circuit is as protection device, and TVS (VD) pipe fitting that can adopt 1500W in second pressure limiting circuit is as protection device.
When thunderbolt takes place; the inductive surge overvoltage is introduced through the RJ45 of input interface end; by gas discharge tube F1, F2 overvoltage surge is carried out common mode, differential mode protection; at this moment; overvoltage is impaired to about about 500V greatly, in process pressure limiting resistance R 1, R2, R3, R4 current limliting, after second pressure limiting circuit that VD and D1-D10 form carries out the secondary pressure limiting; voltage to signal output part RJ2 is clamped at about 15V, thereby realizes the protection to signalling arrangement.
Claims (3)
1. lightning-protection module, it is characterized in that: comprise the signal input output interface and first pressure limiting circuit, described first pressure limiting circuit comprises into the gas discharge tube and the pressure limiting resistance of electrical connection, gas discharge tube is connected with the signal input part interface, pressure limiting resistance is connected with the signal output part interface, and inductive surge or thunder and lightning enter pressure limiting resistance after gas discharge tube carries out pressure limiting.
2. lightning-protection module according to claim 1, it is characterized in that: between first pressure limiting circuit and signal input part interface, be provided with second pressure limiting circuit, inductive surge or thunder and lightning are after gas discharge tube carries out the first low pressure limiting, enter second pressure limiting circuit through pressure limiting resistance and carry out pressure limiting, form discharge loop with ground strip simultaneously.
3. lightning-protection module according to claim 1 and 2 is characterized in that: described gas discharge tube and pressure limiting resistance are provided with for series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201065738U CN201038751Y (en) | 2007-02-13 | 2007-02-13 | Lightning protection module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201065738U CN201038751Y (en) | 2007-02-13 | 2007-02-13 | Lightning protection module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201038751Y true CN201038751Y (en) | 2008-03-19 |
Family
ID=39211275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201065738U Expired - Fee Related CN201038751Y (en) | 2007-02-13 | 2007-02-13 | Lightning protection module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201038751Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684181A (en) * | 2012-05-14 | 2012-09-19 | 江苏中科梦兰电子科技有限公司 | Anti-static and lightning-prevention dual protection circuit |
-
2007
- 2007-02-13 CN CNU2007201065738U patent/CN201038751Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684181A (en) * | 2012-05-14 | 2012-09-19 | 江苏中科梦兰电子科技有限公司 | Anti-static and lightning-prevention dual protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20110213 |