CN202797606U - Lightning arrester for microwave communication - Google Patents
Lightning arrester for microwave communication Download PDFInfo
- Publication number
- CN202797606U CN202797606U CN 201220388077 CN201220388077U CN202797606U CN 202797606 U CN202797606 U CN 202797606U CN 201220388077 CN201220388077 CN 201220388077 CN 201220388077 U CN201220388077 U CN 201220388077U CN 202797606 U CN202797606 U CN 202797606U
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- lightning arrester
- outer conductor
- discharge tube
- insulators
- microwave communication
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Abstract
The utility model discloses a lightning arrester for microwave communication, which comprises an outer conductor, insulators and inner conductors which are coaxially arranged, wherein the outer conductor comprises a front shell and a rear shell which are connected in a threaded manner; the front shell and the rear shell are simultaneously provided with the insulators and the inner conductors therein; the insulators are respectively arranged in the front shell and the rear shell, and the back ends of the insulators are respectively positioned by steps on the inner walls of the front shell and the rear shell; a discharge tube which is in impedance matching with a transmission system is arranged between the front ends of the two insulators; a shaft electrode of the discharge tube is coaxially arranged with the outer conductor and is connected with the inner conductors of the lightning arrester; and the outer electrode is connected with the outer conductor of the lightning arrester. Owing to the above structures, the outer conductor is not damaged in installing, so that good performance of coaxial transmission is guaranteed, the high-frequency performance index of the coaxial transmission system is improved, the mechanical performance and the electric performance are stable, the shielding performance is good, and the service frequency band is wide; and the lightning arrester for microwave communication is rational and simple in structure, detachable, easy in maintenance and small in volume, a great quantity of raw materials are saved and the manufacturing cost is low.
Description
Technical field
The utility model relates to a kind of microwave communication lightning arrester, belongs to microwave communication transmission system technical field.
Background technology
Traditional communication generally has gas discharge cast lightning arrester (parallel connection type) and 1/4 wave length type lightning arrester with lightning arrester; Traditional gas discharge cast lightning arrester is discharge tube to be connected between the internal and external conductor (beat other hole at shell or cavity, discharge tube is packed into), with over-voltage and low-frequency interference signal, because element discharge tube in parallel accesses the coaxial transmission system from the other hole of shell, will produce certain harmful effect (impact has third order intermodulation, radio-frequency leakage, return loss etc. comparatively significantly) to the coaxial transmission characteristic, the coaxial transmission system high-frequency performance index that reduced, thus limited the lightning arrester range of application;
The defective of common 1/4 wave length type lightning arrester is: 1, it can only be used for the above high frequency of shortwave, and middle long wave is difficult to use; 2, it can only be applied to fixed frequency or the relatively narrow transmission system of frequency band, if the frequent change of frequency can't be used; 3, in order to reach comparatively satisfied performance, often to meticulously adjust 1/4 wavelength short bar length, the adjustment screw of a short circuit generally need to be set on the top of short bar, after the lightning arrester assembling is complete, with high-frequency signal source and high frequency power meter it is adjusted one by one, to guarantee that the performance index such as its return loss and insertion loss reach the requirement of regulation, cause thus: a, longer b of delivery cycle, human factor causes homogeneity of product more wayward, and 1/4 wavelength short bar adopts the coaxial lightning arrester of hollow pipe helicoidal structure (perhaps spring structure), although frequency band is widened (being up at present 2.5GHz), but can not change the bulky fact.
Summary of the invention
The technical problems to be solved in the utility model provides that a kind of not only mechanical performance and electric property are stable, advantages of good shielding performance, service band are wide, and volume is little can save a large amount of raw-material microwave communication lightning arresters.
In order to solve the problems of the technologies described above, microwave communication lightning arrester of the present utility model, the outer conductor that comprises coaxial setting, insulator and inner wire, outer conductor comprises front casing and the rear casing that is threaded connection, be provided with simultaneously insulator and inner wire in front casing and the rear casing, insulator lays respectively in front casing and the rear casing, the rear end of insulator is located by the step on front casing and the rear casing inwall respectively, be provided with a discharge tube with the transmission system impedance matching between two insulator front ends, the axial electrode of discharge tube is connected with the coaxial placement of outer conductor and with the inner wire of lightning arrester, and external electrode is connected with the outer conductor of lightning arrester.
Described discharge tube adopts hermetic seal technique to make, and the metal material that described discharge tube adopts is nonferromugnetic material.
After adopting above-mentioned structure, because the axial electrode of discharge tube is connected with the coaxial placement of outer conductor and with the inner wire of lightning arrester, external electrode is connected with the outer conductor of lightning arrester, need not destroy outer conductor when mounted, guaranteed the superperformance of coaxial transmission, the coaxial transmission system high-frequency performance index that improved have enlarged the lightning arrester range of application, make thus that mechanical performance and electric property are stable, advantages of good shielding performance, service band be wide, particularly third order intermodulation index is far above other discharge tube lightning arresters; Simple and reasonable, detachable, easy care is set simultaneously, volume is little, has saved a large amount of raw material low cost of manufactures.
Description of drawings
Fig. 1 is the Split type structure schematic diagram that lightning arrester is used in the utility model microwave communication;
Fig. 2 is the overall structure schematic diagram that lightning arrester is used in the utility model microwave communication.
Embodiment
Below in conjunction with the drawings and specific embodiments, microwave communication of the present utility model is described in further detail with lightning arrester.
As shown in the figure, microwave communication lightning arrester of the present utility model, the outer conductor that comprises coaxial setting, insulator and inner wire, outer conductor comprises front casing 1 and the rear casing 3 that is threaded connection, front casing 1 and rear casing 3 interior insulator 4 and the inner wires 5 of being provided with simultaneously, insulator 4 lays respectively in front casing 1 and the rear casing 3, the rear end of insulator 4 is located by the step on front casing 1 and rear casing 3 inwalls respectively, be provided with a discharge tube 5 with the transmission system impedance matching between two insulator 4 front ends, the axial electrode 6 of discharge tube 5 is connected with the coaxial placement of outer conductor and with the inner wire 7 of lightning arrester, external electrode 8 is connected with the outer conductor of lightning arrester, impedance and whole transmission system are complementary, do not having lightning wave or overvoltage to do the time spent, it just is equivalent to the part of coaxial connection adapter, serves as the function of coaxial adatpter; When having lightning wave or overvoltage to do the time spent, it has possessed the function of lightning arrester, has also avoided traditional discharge tube lightning arrester to access the coaxial transmission system because of element in parallel, to the harmful effect of coaxial transmission characteristic generation.For example: the N-type frequency of utilization can be increased to 4000MHz(service band 0 ~ 4000MHz), if reflection coefficient allows greater than 0.12, frequency of utilization can reach 6000 MHz; The third order intermodulation index be better than other discharge tube lightning arresters (common discharge-tube type lightning arrester≤-10360dBc, coaxial discharge tube arrester of the present invention≤-130dBm); Discharge tube 5 adopts hermetic seal technique to make, and the metal material that discharge tube 5 adopts is nonferromugnetic material, has optimized the intermodulation index of whole transmission system.
Be connected with the coaxial placement of outer conductor and with the inner wire of lightning arrester by the axial electrode with discharge tube, external electrode is connected with the outer conductor of lightning arrester, has reduced the contact nonlinear of transmission system, and the nonmagnetic substance of employing has improved the intermodulation index widely.Microwave communication of the present utility model has the dual-use function of coaxial connector and lightning arrester concurrently with lightning arrester in addition; guarantee excellent signal transmission simultaneously; prevent that lightning wave or overvoltage are from holding wire intrusion defective communication equipment and system; under normal operation; this lightning arrester is in high resistant (insulation resistance reaches more than the 1000M Ω) state; transmission does not have any impact to signal; the lightning arrester automatic guide connects ground when having lightning current or other overvoltage to produce; this moment, the coaxial discharge pipe was equivalent to a good conductor; surge voltage namely is short-circuited to rapidly near no-voltage within less than the time of 50 μ s; surge current is imported rapidly the earth; when surge voltage disappears; coaxial discharge pipe immediate recovery is high-impedance state, thereby makes lightning wave or overvoltage be unlikely to protected equipment is caused damage.
Claims (2)
1. microwave communication lightning arrester, the outer conductor that comprises coaxial setting, insulator and inner wire, outer conductor comprises front casing (1) and the rear casing (3) that is threaded connection, be provided with simultaneously insulator (4) and inner wire (5) in front casing (1) and the rear casing (3), it is characterized in that: described insulator (4) lays respectively in front casing (1) and the rear casing (3), the rear end of insulator (4) is located by the step on front casing (1) and rear casing (3) inwall respectively, be provided with a discharge tube (5) with the transmission system impedance matching between described two insulators (4) front end, the axial electrode (6) of described discharge tube (5) is connected with the coaxial placement of outer conductor and with the inner wire (7) of lightning arrester, and described external electrode (8) is connected with the outer conductor of lightning arrester.
2. according to microwave communication lightning arrester claimed in claim 1, it is characterized in that: described discharge tube (5) adopts hermetic seal technique to make, and the metal material that described discharge tube (5) adopts is nonferromugnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388077 CN202797606U (en) | 2012-08-07 | 2012-08-07 | Lightning arrester for microwave communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388077 CN202797606U (en) | 2012-08-07 | 2012-08-07 | Lightning arrester for microwave communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202797606U true CN202797606U (en) | 2013-03-13 |
Family
ID=47824792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220388077 Expired - Lifetime CN202797606U (en) | 2012-08-07 | 2012-08-07 | Lightning arrester for microwave communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202797606U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953576A (en) * | 2015-05-15 | 2015-09-30 | 湖南中普防雷股份有限公司 | Integrated radio frequency lightning arrester and integrated lightning arresting method |
| CN106129812A (en) * | 2016-07-29 | 2016-11-16 | 镇江普天电子有限公司 | Tandem lightning protection device and manufacture method thereof |
| CN110444948A (en) * | 2019-08-16 | 2019-11-12 | 四川赛尔特科技有限公司 | A kind of wall-penetrating type antenna feeder Surge Protector |
-
2012
- 2012-08-07 CN CN 201220388077 patent/CN202797606U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104953576A (en) * | 2015-05-15 | 2015-09-30 | 湖南中普防雷股份有限公司 | Integrated radio frequency lightning arrester and integrated lightning arresting method |
| CN106129812A (en) * | 2016-07-29 | 2016-11-16 | 镇江普天电子有限公司 | Tandem lightning protection device and manufacture method thereof |
| CN110444948A (en) * | 2019-08-16 | 2019-11-12 | 四川赛尔特科技有限公司 | A kind of wall-penetrating type antenna feeder Surge Protector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 31, run Hing Road, Private Development Zone, Zhenjiang, Jiangsu Province Patentee after: JIANGSU HUAXING TELECOM TECHNOLOGY CO.,LTD. Address before: No. 31, run Hing Road, Private Development Zone, Zhenjiang, Jiangsu Province Patentee before: JIANGSU HUAXING COMM TECHNOLOGY Co.,Ltd. JOINT VENTURE |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130313 |
|
| CX01 | Expiry of patent term |