CN203933000U - 3G lightning protection overvoltage protector - Google Patents
3G lightning protection overvoltage protector Download PDFInfo
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- CN203933000U CN203933000U CN201420305331.1U CN201420305331U CN203933000U CN 203933000 U CN203933000 U CN 203933000U CN 201420305331 U CN201420305331 U CN 201420305331U CN 203933000 U CN203933000 U CN 203933000U
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- protection
- lightning
- shell
- discharge pipe
- overvoltage protector
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Abstract
The utility model discloses a kind of 3G lightning protection overvoltage protector; comprise shell; lightning-protection module is installed in shell; also comprise that being located at shell two ends is respectively used to the connector of signal input part and output and is crimped on the shielding baffle plate of housing exterior; connector is connected with lightning-protection module; lightning-protection module middle part has the ground lead that connects earth mat to draw, and lightning-protection module comprises 3G signal input part, 3G signal output part, 3G transmission ground wire, prime protection, decoupling level, rear class protection and protection over the ground.The utility model has shielding baffle plate in shell crimped outside, can improve the shielding action of lightning protection device, prevents the interference of external electromagnetic ripple to 3G signal.Directly be connected with equipment by connector, install very convenient; Meanwhile, select high-quality lightning protection component, meet the performances such as 3G high-speed transfer speed, multiple signal carrier transmission; Through three grades of protection Designs, the through-current capacity of lightning protection device can be higher, and residual voltage is lower, guarantees system safety operation.
Description
Technical field
The utility model relates to a kind of lightning protection overvoltage protector, relates in particular to a kind of 3G lightning protection overvoltage protector.
Background technology
High speed signal lightning protection is to follow universal, the development of modern electronic technology, information technology and the newer industry that is derived.Along with birth and the development of new electronic component; the high speed development of electric power and information industry; electric power, railway, oil, communication, airport, national defence, finance etc. also present high speed development trend to the demand of meticulous lightning protection component; especially in message transmitting procedure; siganl thunder-proof device is also had higher requirement simultaneously, and protective capability is strong, simple and reliable for structure, be convenient to safeguard etc. possesses equal importance with transmission characteristic.
Along with the continuous propelling of country to 3G industry, 3G builds and constantly launches.But also there is RRU(RF remote equipment in NodeB) problem of upper tower, thunderbolt environment facies are to badly, and to system thunder defending, design has proposed acid test for this.In prior art, 3G lightning protection overvoltage protector is not mature enough, and overvoltage protector is directly exposed to outside, makes its shield effectiveness bad, causes under having compared with strong electromagnetic signal and thunder and lightning environment, and 3G communication is unstable, brings great inconvenience to user; Other device structure complexity, volume is larger, and installation process is very inconvenient, makes troubles to construction.
Utility model content
For the deficiencies in the prior art, the utility model proposes a kind of 3G lightning protection overvoltage protector, the utlity model has the feature that shield effectiveness is good, transmission rate is fast, easy for installation.
To achieve these goals; the technical solution of the utility model is as follows: a kind of 3G lightning protection overvoltage protector; comprise shell; in described shell, lightning-protection module is installed; also comprise that being located at shell two ends is respectively used to the connector of lightning-protection module input and output and is crimped on the shielding baffle plate of housing exterior, lightning-protection module one end is provided with the ground connection ground wire that connects earth mat.
In one embodiment, lightning-protection module comprises 3G signal input part, 3G signal output part, 3G transmission ground wire, prime protection, decoupling level, rear class protection and protection over the ground, 3G signal input part is connected with decoupling level first end with prime protection first end respectively, prime is protected the second end and is connected with 3G transmission ground wire respectively respectively with after rear class is protected the second end and protected over the ground first end and be connected, and rear class protection first end is distinguished decoupling level the second end and is connected with 3G signal output part.
Wherein, prime protection comprises low capacitor discharge pipe G1, and described low capacitor discharge pipe G1 first end is connected with 3G signal input part.
Decoupling level comprises high frequency characteristics resistance R 1, and described high frequency characteristics resistance R 1 first end is connected with 3G signal input part respectively at low capacitor discharge pipe G1 first end, and alternating-current resistance R1 the second end is connected with the output of 3G signal.
Rear class protection comprises low-capacitance TVS device combination, and this low-capacitance TVS device combination first end is connected with 3G signal output part with high frequency characteristics resistance R 1 second end respectively.
Protection comprises low capacitor discharge pipe G2 over the ground, and this low capacitor discharge pipe G2 first end is transmitted and is connected with TVS combination of devices the second end with low capacitor discharge pipe G1 the second end respectively by 3G, and low capacitor discharge pipe G2 the second end is connected with earth mat.
The material selection copper material of shell and shielding baffle plate, can ensure that lightning-protection module and the external world shield well, thereby improves interference free performance.
Compared with prior art, the beneficial effects of the utility model mainly contain:
1) bulk shielding, is easy to realize
The utility model patent, adopts the shell of copper material and shielding baffle plate to shield transmitting, and can eliminate the interference of outer signals and electromagnetic radiation, and be easy to realize.
2) exquisite design, installs simpler and easy
The utility model design fully takes into account the convenience of installing on the spot, product is without the installation of other complexity, only connector lug need to be connected with input and output, earth connection is reliably connected and fixed just with earth mat, guarantees in construction that one solves screwdriver to comprise that lightning protection device fixes and the problem such as ground connection.
3) rationally, transmission performance is superior in planning
The utility model is selected up-to-date high-quality lightning protection component, meets the performances such as 3GHz high-speed transfer speed, multiple signal carrier transmission completely.After mounted with lightning protection device, still can meet system transmission requirement.
4) multistage protection, lightning protection effect is better
The utility model has designed three grades of protection altogether, and prime is the lightning current main channel of releasing, and middle is decoupling protection, and rear class is the accurate protection of end.Through three grades of protection Designs, the through-current capacity of lightning protection device can be higher, and residual voltage is lower, guarantees system safety operation.
Brief description of the drawings
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the electrical schematic diagram of the utility model lightning-protection module;
Fig. 3 is the circuit diagram of the utility model lightning-protection module.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1; the utility model provides a kind of 3G lightning protection overvoltage protector; comprise shell 1; lightning-protection module 2 is installed in shell 1; shell 1 two ends are respectively equipped with for the input of lightning-protection module 2 and the connector of output 3; these lightning-protection module 2 middle parts also have ground lead 4, and this ground lead 4 is directly connected with earth mat after drawing shell.In the present embodiment, connector 3 connecting coaxial cables or equipment, it inputs terminated cable; output connects protected equipment end, and this small product size is little, lightweight; therefore, only need to rely on the connection of connector just can directly this lightning-protection module be fixed, install very convenient.
The outside of shell 1 is also provided with shielding baffle plate 5, and this shielding baffle plate 5 is crimped on shell 1.Because being easy to be subject to outer signals, disturbs 3G signal, in the present embodiment, there is shielding baffle plate 5 in shell 1 crimped outside, can improve the shielding action of lightning protection device, and shell 1 and shielding baffle plate 5 all adopt copper material, in guarantee lightning protection device, 3G signal is not subject to the interference of outer signals and electromagnetic radiation, ensures that 3G signal can normally pass through in lightning protection device.
As shown in Figure 2 and Figure 3, lightning-protection module 2 comprises prime protection, decoupling level, rear class protection and protection over the ground, wherein:
Prime protection comprises low capacitor discharge pipe G1, and the capacitance of this low capacitor discharge pipe G1 is lower than 0.8pF, and the first end of this low capacitor discharge pipe G1 is connected with 3G signal input part.Prime protection is main protection, plays the effect such as thunder and lightning and induction overvoltage of releasing, and has ensured large through-flow releasing, and has also ensured that signalling channel is without afterflow simultaneously, prevents short circuit between 3G signal and signal ground;
Decoupling level comprises high frequency characteristics resistance R 1, and this alternating-current resistance R1 first end is connected with 3G signal input part with low capacitor discharge pipe G1 first end respectively, and alternating-current resistance R1 the second end is connected with the output of 3G signal.Decoupling level plays the effect of suppressor pulse intensity, ensures to make front stage circuits action before the not breakdown damage of final stage protection circuit;
Rear class protection comprises low-capacitance TVS device combination, the capacitance of this low-capacitance TVS device combination is lower than 1pF, this low-capacitance TVS device combination first end is connected with 3G signal output part with high frequency characteristics resistance R 1 second end respectively, and rear class protection, for the accurate protection of end, meets the requirements residual voltage;
Protection comprises low capacitor discharge pipe G2 over the ground, this low capacitor discharge pipe G2 first end is transmitted and is connected with TVS combination of devices the second end with low capacitor discharge pipe G1 the second end respectively by 3G, low capacitor discharge pipe G2 the second end is connected with earth mat, lightning protection device can be released over the ground, and play the effect of disturbing of playing a reversed role of current potential isolator.
The utility model is selected above lightning protection component, meets the performances such as 3G high-speed transfer speed, multiple signal carrier transmission completely.After mounted with lightning protection device, still can meet system transmission requirement, designed three grades of protection simultaneously, prime is the lightning current main channel of releasing, and middle is decoupling protection, and rear class is the accurate protection of end.Through three grades of protection Designs, the through-current capacity of lightning protection device can be higher, guarantees system safety operation.
Claims (7)
1. a 3G lightning protection overvoltage protector; comprise shell (1); in described shell (1), lightning-protection module (2) is installed; it is characterized in that: also comprise and be located at shell (1) two ends respectively simultaneously for the connector (3) of lightning-protection module (2) input and output and be crimped on the outside shielding baffle plate (5) of shell (1), the ground lead (4) for connecting earth mat is drawn at described lightning-protection module (2) middle part.
2. 3G lightning protection overvoltage protector as claimed in claim 1, it is characterized in that: described lightning-protection module (2) comprises 3G signal input part, 3G signal output part, 3G transmits ground wire, prime protection, decoupling level, rear class protection and over the ground protection, described 3G signal input part is connected with decoupling level first end with described prime protection first end respectively, described prime is protected the second end and is connected with 3G transmission ground wire respectively respectively with after described rear class is protected the second end and protected over the ground first end and be connected, described rear class protection first end respectively decoupling level the second end is connected with 3G signal output part.
3. 3G lightning protection overvoltage protector as claimed in claim 2, is characterized in that: described prime protection comprises low capacitor discharge pipe G1, and described low capacitor discharge pipe G1 first end is connected with 3G signal input part.
4. 3G lightning protection overvoltage protector as claimed in claim 2; it is characterized in that: described decoupling level comprises high frequency characteristics resistance R 1; described high frequency characteristics resistance R 1 first end is connected with 3G signal input part respectively at low capacitor discharge pipe G1 first end, and alternating-current resistance R1 the second end is connected with the output of 3G signal.
5. 3G lightning protection overvoltage protector as claimed in claim 2, is characterized in that: described rear class protection comprises low-capacitance TVS device combination, and this low-capacitance TVS device combination first end is connected with 3G signal output part with high frequency characteristics resistance R 1 second end respectively.
6. 3G lightning protection overvoltage protector as claimed in claim 2; it is characterized in that: described protection over the ground comprises low capacitor discharge pipe G2; this low capacitor discharge pipe G2 first end is transmitted and is connected with TVS combination of devices the second end with low capacitor discharge pipe G1 the second end respectively by 3G, and low capacitor discharge pipe G2 the second end is connected with ground lead (4).
7. 3G lightning protection overvoltage protector as claimed in claim 1, is characterized in that: the material selection copper material of described shell (1) and shielding baffle plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305331.1U CN203933000U (en) | 2014-06-10 | 2014-06-10 | 3G lightning protection overvoltage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305331.1U CN203933000U (en) | 2014-06-10 | 2014-06-10 | 3G lightning protection overvoltage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203933000U true CN203933000U (en) | 2014-11-05 |
Family
ID=51828755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420305331.1U Expired - Fee Related CN203933000U (en) | 2014-06-10 | 2014-06-10 | 3G lightning protection overvoltage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203933000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253297A (en) * | 2016-08-24 | 2016-12-21 | 合肥智博电气有限公司 | Overvoltage protection device |
| CN113315107A (en) * | 2021-06-16 | 2021-08-27 | 天津津航计算技术研究所 | Be applied to lightning protection circuit of aircraft 1394 bus |
-
2014
- 2014-06-10 CN CN201420305331.1U patent/CN203933000U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253297A (en) * | 2016-08-24 | 2016-12-21 | 合肥智博电气有限公司 | Overvoltage protection device |
| CN113315107A (en) * | 2021-06-16 | 2021-08-27 | 天津津航计算技术研究所 | Be applied to lightning protection circuit of aircraft 1394 bus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |