CN202871975U - Novel lightning protection device for antenna system - Google Patents
Novel lightning protection device for antenna system Download PDFInfo
- Publication number
- CN202871975U CN202871975U CN 201220342091 CN201220342091U CN202871975U CN 202871975 U CN202871975 U CN 202871975U CN 201220342091 CN201220342091 CN 201220342091 CN 201220342091 U CN201220342091 U CN 201220342091U CN 202871975 U CN202871975 U CN 202871975U
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- lightning
- lightning protection
- cover body
- protection cover
- pedestal
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Abstract
The utility model discloses a novel lightning protection device for an antenna system. The novel lightning protection device is used for lightning protection for signal reception systems such as wireless signal systems of mobile signal stations, meteorological radar stations, broadcast television towers, etc. The novel lightning protection device comprises a lightning protection cover body (1), fixed rods (2) and a pedestal (3). The lightning protection cover body employs semispherical metal grids, is connected with the pedestal with the four metal fixed rods and is fixed above antenna devices. The pedestal is connected with a building earth net through a down lead. The novel lightning protection device has prominent characteristics of no lightning triggering, lightning electromagnetic pulse shielding, targeted protection for antenna devices, simple installation, etc., and has relatively high popularization and application values.
Description
Technical field
The present invention relates generally to the wireless signal receive-transmit system fields such as mobile communication station, broadcasting television tower, refers in particular to a kind of novel exploitation and design for the antenna system lightning protection device.
Background technology
The mobile communication station of most, the aerial signal receive-transmit systems such as station, broadcasting television tower all adopt the lightning rod lightning protection.Lightning rod generally is set up in the top layer of building and far above protected object; usually by arrester; downlead and earth electrode consist of; lightning rod is again " attracting thunder needle "; its protective effect is to attract thunder and lightning to shock by electricity in self; and make lightning current leak into the earth; owing to there is impedance in signal tower self and there is the reason of earth resistance in the earth mat that is attached thereto; when having when flowing through than large lightning current; this can cause producing on lightning rod and the signal tower overvoltage of higher magnitude; maximum permissible voltage when this voltage is higher than antenna work far away, so antenna may damage and can't work because indirectly suffering thunderbolt (i.e. counterattack).In view of appeal is analyzed, the movable signal tower, the lightning rod lightning protection is used in broadcasting television towers etc., may produce following some negative effect:
(1) lightning rod is installed and is increased the lightning strike accident probability.Lightning rod is by highly attracting direct thunder, and it must have enough height just can reach the purpose that prevents direct stroke, but lightning strike probability becomes positively related relation with the height of lightning rod again, and namely lightning rod is higher, recruits the probability of direct lightning strike larger.Therefore, the lightning strike probability that lightning rod can increase the installation site is installed.(2) quadratic effect of lightning rod.Behind the thunderbolt lightning rod, moment is passed through the electric current of larger ampere in downlead, and this electric current can produce stronger magnetic field around lightning channel.High-intensity magnetic field can impact equipment, the personnel around the lightning rod.In addition, if when in this magnetic field metallic conductor being arranged, metal guide is known from experience moment and is induced high voltage.When voltage value is higher, can produce secondary pulse to electric power system, communication system.The drawing ray process and can produce Lightning Electromagnetic Pulse of lightning rod, for wireless communication system, usually contain many modern electronic equipments, its precision is high, sensitivity is strong, antijamming capability usually a little less than, the thunder and lightning electric pulse can affect its normal operation to an electromagnetic interference that rise to produce.In addition, be subjected to the impact of Lightning Electromagnetic Pulse, power line around the lightning conducter, the feeder lines such as control line, holding wire can produce the induction coupling, thereby produce induced pulse surge, if this voltage is larger, can cause damage to surrounding devices.(3) lightning rod can not form the specific aim protection.Because being the object that reduces in its protection range, the operation principle of lightning rod exempts from the probability that thunder and lightning is attacked directly; it can not prevent the generation of thunderbolt accident fully, therefore, adopts the lightning rod lightning protection; thunder and lightning might form shielding to antenna, thereby damages antenna assembly.
Summary of the invention
The utility model is for shortcoming and the deficiency of above-mentioned prior art, invents a kind ofly can reduce the lightning strike accident probability, LEMP is formed shielding, antenna assembly formed the Novel lightning-proof device that is applied to antenna system of specific aim protection.
The technical solution adopted in the utility model is: a kind of antenna system Novel lightning-proof device, it by lightning protection cover body, the fixed lever that is connected with the lightning protection cover body, the pedestal that is used for connecting signal tower forms; It is characterized in that the lightning protection cover body is a dome-type metal cap net; Lightning protection cover body edge is connected with pedestal with four metal fixed levers; Pedestal is comprised of a frame type ring and mounting panel, evenly is provided with installing hole on the shaped as frame ring, and mounting panel is provided with installation screw and signal tower is fixed.
As further improvement of the utility model:
Described lightning protection cover body, we adopt the hemisphere network structure, hemispherical dome structure compares to the aciculiform structure, the distribution that can effectively improve space charge forms uniform electric field, can avoid the electric field distortion at traditional aciculiform lightning rod most advanced and sophisticated position when the thundercloud electric field action, thereby attract the secondary negative effect that thunderbolt self causes the thunderbolt lightning rod, namely it has the function of not attracting the thunder direct attack; Because hemispherical dome structure can form electrostatic screen to antenna assembly and form uniform magnetic field, has overcome the signal interference of Lightning Electromagnetic Pulse to antenna.The cover body diameter freely designs according to antenna range, and dwi hastasana is become disposition.
The utlity model has following advantage:
The lightning protection cover body of this lightning protection device is dome-type metal cover body, the hemisphere face design can effectively improve the distribution of external electromagnetic field, make it more to be not easy to draw thunder and antenna is formed electrostatic screen with respect to aciculiform, thereby reduce the risk that antenna is struck by lightning, reduced the interference of Lightning Electromagnetic Pulse to aerial signal.The composition framework of this device not only makes its lightning protection function with common lightning rod, and because the cover body structure compares to the targetedly protection that the aciculiform structure more can form antenna, reduces the risk of thunderbolt antenna assembly.The utility model device have do not draw thunder, to Lightning Electromagnetic Pulse shielding, to the protection of antenna assembly specific aim, the outstanding characteristics such as simple are installed, have higher application value.
Description of drawings
Fig. 1 is the mounting structure schematic diagram of the utility model device;
Fig. 2 is anti-mine cover body structure schematic diagram among the utility model embodiment;
Fig. 3 is base construction schematic diagram figure among the utility model embodiment.
Embodiment
As shown in Figure 1, 2, the antenna system Novel lightning-proof device that provides of the utility model mainly is comprised of lightning protection cover body [1], fixed lever [2], pedestal [3].Described pedestal [3] is comprised of an annulus and the flat board that is connected as a single entity with it, and the annulus equal intervals is provided with 4 installing holes, is used for connecting 4 fixed levers [2].Flat board is provided with installation screw, and this flat board is bolted on the top of signal tower, and base material is selected stainless steel or galvanized steel, thickness of slab 10 ~ 15mm.Lightning protection cover body [1] edge is provided with equally spaced 4 installing holes equally, is used for being connected and fixed the other end of bar [2].Lightning protection cover body [1] is made by galvanized steel bar, and the round steel diameter is 5 ~ 10mm, and fixed lever [2] is made by coating steel pipe or filled circles steel, and its diameter is 10 ~ 15mm.
As shown in Figure 2, the lightning protection device that is installed in the aerial signal top in the utility model directly replaces the pin type lightning rod, is covered in the antenna top, and its diameter is looked the actual conditions free setting, thereby antenna is formed the specific aim protection.Whole lightning protection device is drawn down conductor by the pedestal lower end and is directly formed reliable electric with earthing device and be connected, downlead is selected zinc-coated flat steel sheet or round steel, the round steel diameter is 8 ~ 12mm, the band steel cross section should be greater than 12mm * 4mm, the laying of downlead should select beeline to enter ground along signal tower, guarantees the normal earial drainage of lightning current.
The course of work of the present utility model: under the thundercloud electric field action; the most advanced and sophisticated high prominent electric field distorted of tradition pin type lightning rod; thereby thunder and lightning is guided into self and by earthing device lightning current is introduced the earth and draw thunder and enter ground, so that protected object exempts from direct stroke.Operation principle in view of conventional lightning conductor; lightning arrester of the present utility model proposes " not drawing thunder " principle, replaces stylus structure by adopting hemisphere uniform grid form, covers on protected equipment top; form a lightning proof cover, the lower end adopts the metallic support form to connect into ground.Because network structure can effectively improve the distribution of space charge and form uniform electric field, so when the close lightning proof cover of thundercloud, be difficult for causing lightning proof cover electric field transient distortion on every side, and then be difficult for making lightning current through the lightning proof cover leakage current, play one and reduce direct lightning strike infringement accident.In addition, the cover body structure forms electrostatic screen to protection equipment, reduces electromagnetic interference to the impact of equipment.
The above only is preferred implementation of the present invention, and protection scope of the present invention also not only is confined to above-described embodiment, and all technical schemes that belongs under the thinking of the present invention all belong to protection scope of the present invention.Should be understood that; for those skilled in the art; in the some improvements and modifications that do not break away under the principle of the invention prerequisite, for example change tortuous connected mode between each first half winding and the later half winding etc., these improvements and modifications also should be considered as protection scope of the present invention.
Claims (4)
1. antenna system Novel lightning-proof device, it by lightning protection cover body (1), the fixed lever (2) that is connected with lightning protection cover body (1), the pedestal (3) that is used for connecting signal tower forms; It is characterized in that lightning protection cover body (1) is a dome-type metal cap net; Lightning protection cover body (1) edge is connected with pedestal (3) with four metal fixed levers (2); Pedestal (3) is comprised of a frame type ring and mounting panel, evenly is provided with installing hole on the shaped as frame ring, and mounting panel is provided with installation screw and signal tower is fixed.
2. Novel lightning-proof device according to claim 1, the hemisphere face design that it is characterized in that lightning protection cover body (1) employing of this device can improve space charge, do not cause that namely electric field distortion forms uniform electric field, make it more to be not easy to draw thunder with respect to the aciculiform structure, thereby reduce the risk that antenna is struck by lightning.
3. Novel lightning-proof device according to claim 2 is characterized in that the lightning protection cover body (1) of this device is the dome-type metal net mask, and the guard mesh is even mesh.
4. Novel lightning-proof device according to claim 2 is characterized in that the diameter of the lightning protection cover body (1) of this lightning protection device can freely design according to antenna diameter, and antenna is formed the specific aim protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342091 CN202871975U (en) | 2012-07-16 | 2012-07-16 | Novel lightning protection device for antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220342091 CN202871975U (en) | 2012-07-16 | 2012-07-16 | Novel lightning protection device for antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202871975U true CN202871975U (en) | 2013-04-10 |
Family
ID=48038666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220342091 Expired - Fee Related CN202871975U (en) | 2012-07-16 | 2012-07-16 | Novel lightning protection device for antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202871975U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187895A1 (en) * | 2013-05-24 | 2014-11-27 | Lm Wp Patent Holding A/S | A lightning protection system for a wind turbine blade |
| CN105262041A (en) * | 2015-11-03 | 2016-01-20 | 国网山东济南市历城区供电公司 | Lightning arrester in mine field |
| CN112421382A (en) * | 2020-11-18 | 2021-02-26 | 中国舰船研究设计中心 | Lightning rod device of composite material top mast and integration method |
-
2012
- 2012-07-16 CN CN 201220342091 patent/CN202871975U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014187895A1 (en) * | 2013-05-24 | 2014-11-27 | Lm Wp Patent Holding A/S | A lightning protection system for a wind turbine blade |
| CN105209753A (en) * | 2013-05-24 | 2015-12-30 | Lmwp专利控股有限公司 | A lightning protection system for a wind turbine blade |
| US10280896B2 (en) | 2013-05-24 | 2019-05-07 | Lm Wp Patent Holding A/S | Lightning protection system for a wind turbine blade |
| CN105262041A (en) * | 2015-11-03 | 2016-01-20 | 国网山东济南市历城区供电公司 | Lightning arrester in mine field |
| CN112421382A (en) * | 2020-11-18 | 2021-02-26 | 中国舰船研究设计中心 | Lightning rod device of composite material top mast and integration method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: CHANGSHA XINCHANG ELECTRIC POWER SCIENCE & TECHNOLOGY CO., LTD. Assignor: Li Jinglu Contract record no.: 2015430000011 Denomination of utility model: Novel lightning protection device for antenna system Granted publication date: 20130410 License type: Exclusive License Record date: 20150326 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160926 Address after: 410011 No. 9, No. 188, No. four, 204 Middle East environmental protection road, Yuhua District, Hunan, Changsha Patentee after: CHANGSHA XINCHANG ELECTRIC POWER SCIENCE & TECHNOLOGY CO., LTD. Address before: 302, room 22, building 9, 410076 Leng Ling Road, Tianxin District, Hunan, Changsha Patentee before: Li Jinglu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20190716 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |