CN201213198Y - Lightning protector for large power radio frequency antenna - Google Patents
Lightning protector for large power radio frequency antenna Download PDFInfo
- Publication number
- CN201213198Y CN201213198Y CNU2008201090378U CN200820109037U CN201213198Y CN 201213198 Y CN201213198 Y CN 201213198Y CN U2008201090378 U CNU2008201090378 U CN U2008201090378U CN 200820109037 U CN200820109037 U CN 200820109037U CN 201213198 Y CN201213198 Y CN 201213198Y
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- box body
- antenna
- ball discharge
- sealing metal
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Abstract
The utility model relates to a lightningproof protector, in particular to a high-power radio-frequency antenna lightningproof protector used for a broadband radio-frequency output port of high power under a short wave, and a pair of discharging balls is arranged between the ground and a feeder line for connecting an antenna and a transmitter, wherein the discharging balls are made of contact material with high-melting point, and are arranged inside a sealed metal box. The utility model has the advantages that: 1. the volume is small, no damage happens during repeated discharging, and the electric current passing through thunder is heavy; 2. the lightningproof protection index is stable and the lightningproof capability is good; 3. the installation is convenient; 4. the lightningproof protector is used for high-power equipment; 5. a broadband is used; and 6. the high frequency response under the short wave is good.
Description
Technical field
The utility model relates to a kind of anti-lightening protector, particularly a kind of high-power RF antenna anti-lightening protector that is used for the following large-power broadband radio-frequency (RF) output end of shortwave.
Background technology
Radio-frequency transmissions is mainly used in broadcasting and radio communication cause, for improving the communication effect of signal, enlarges coverage rate, and transmitting antenna generally all is installed in spaciousness or eminence, is struck by lightning easily.Attacked by thunder and lightning for fear of transmitter, guarantee the operate as normal of transmitter, the transmitter antenna end must add safeguard measure.
For high-power transmitter; existing lightning protection equipment is that high-pressure discharging device (as shown in Figure 1) is set between radio-frequency antenna and ground; be between antenna 1 and ground, a pair of ball discharge 2a and 2b are set, regulate the magnitude of voltage of discharge by the distance between adjusting ball discharge 2a and the 2b.The discharge voltage of described high-pressure discharging device should be lower than the withstand voltage of the output stage of transmitter, and the withstand voltage of the output stage of transmitter is generally all more than 5 kilovolts, and therefore, the discharge voltage of high-pressure discharging device can be set to 5 kilovolts.
Because the electric current of surging during thunder discharge is very big, to the hundreds of kilo-ampere, the ball discharge in the existing this high-pressure discharging device must be very big, otherwise be easy to be burnt up to tens kilo-amperes, need to change and repair, otherwise performance can not guarantee.But the lightning protection equipment of this big ball discharge not only exists volume big, and also there is the discharge voltage instability in the problem that cost is high, with the humidity of ambient air much relations is arranged.
Because radio frequency, high-power, the first order, various lightning guards on the market are difficult to be suitable for.
Summary of the invention
The purpose of this utility model is to overcome the shortcoming of above-mentioned existing product; provide a kind of simple in structure, easy for installation, volume is little, non-maintaining, high reliability be used for the high-power transmitter of intermediate waves; output prevents the infringement that thunder and lightning causes by antenna feeder intrusion machine room to the anti-lightening protector between antenna.
The purpose of this utility model can realize by following technical solution:
A kind of high-power RF antenna lightning guard is provided with a pair of ball discharge between feeder line that connects Antenna+Transmitter and ground, it is characterized in that: described ball discharge is made by the high-melting-point slider material.
Except that above-mentioned essential features, in specific implementation process, also can replenish following technology contents.
Described high-power RF antenna lightning guard is characterized in that: described high-melting-point slider material is silver-colored tungsten carbide, metal transpiration material.
Described high-power RF antenna lightning guard; it is characterized in that: be provided with a sealing metal box; the relative two side faces of described sealing metal box is provided with the coaxial socket that is used for connecting respectively Antenna+Transmitter; one metallic conductor connects the inner wire of two coaxial sockets; described a pair of ball discharge is arranged in the described sealing metal box; wherein a ball discharge is fixedly arranged on the metallic conductor of described connection two coaxial socket inner wires; another ball discharge is electrically connected with the box body of sealing metal box, and two ball discharge spheres are relative.
Described high-power RF antenna lightning guard is characterized in that: set firmly an arc metallic support in the described sealing metal box, another ball discharge that box body described and the sealing metal box is electrically connected is fixed on the described arc metallic support by an adjusting screw(rod).
Described high-power RF antenna lightning guard; it is characterized in that: described sealing metal box is made up of box body and loam cake; the seal groove that is provided with suitable for reading of described box body; four jiaos are provided with screw; be provided with the conductive seal circle in the seal groove; four jiaos of correspondences of described loam cake are provided with through hole, and described loam cake is anchored on the suitable for reading of box body by four jiaos through hole with screw and seal washer, and with conductive seal circle and box body conductive seal.
Described high-power RF antenna lightning guard; it is characterized in that: be provided with side to the lower edge around the described loam cake; described loam cake is fastened on the suitable for reading of box body by side; and be anchored on the suitable for reading of box body, and with conductive seal circle and box body conductive seal with screw and the seal washer through hole by four jiaos.
Described high-power RF antenna lightning guard, it is characterized in that: the two bottom sides of described box body also is provided with lug, and lug is provided with installing hole.
Described high-power RF antenna lightning guard is characterized in that: described coaxial socket is the high-power coaxial socket, is provided with the taper insulator between the internal and external conductor of coaxial socket.
The beneficial effects of the utility model:
1, adopt the high-melting-point slider material to make ball discharge, so volume is very little, thereby electric discharge device can be done very for a short time; And guarantee that reignition does not damage, by lightning current big (8/20 μ S lightning wave 160kA does not damage);
2, electric discharge device is arranged in the sealing metal box, thereby has guaranteed that the lightning protection index is stable, lightning protection properties good (after reaching discharge voltage, residual voltage is low, and residual voltage is less than 1.9kV during by 8/20 μ S lightning wave 160kA);
3, because lightning guard can be done very for a short time and is arranged in the sealing metal box, and require to design according to the impedance of feeder, thereby guarantee the high frequency index, a part that can be used as feeder is serially connected with the optional position of feeder, and is easy for installation.
4, adopt the high-power high voltage coaxial socket on the sealing metal box, guarantee that height is withstand voltage, can high-powerly use (by power 1～10kW);
5, adopt the gap discharge protection, can be used for broadband and (be applicable to DC～30MHz).
6, the following high frequency characteristics of shortwave is good
For architectural feature of the present utility model and effect thereof are had further understanding, enumerate specific embodiment now and be described with reference to the accompanying drawings as follows.
Description of drawings
Fig. 1 is the schematic diagram of existing high-power RF antenna lightning protection equipment.
Fig. 2 is the end view of the utility model high-power RF antenna lightning guard.
Fig. 3 is the vertical view after Fig. 2 removes loam cake.
Embodiment
Fig. 2, the 3rd, the structural representation of high-power RF antenna lightning guard of the present utility model.Between feeder line that connects Antenna+Transmitter and ground, be provided with a pair of ball discharge, specifically be, connect at transmitter between the internal and external conductor 11,12 of coaxial feeder 10 of antenna a pair of ball discharge 13,14 is set, inner wire connects antenna, outer conductor ground connection: for preventing in thunder and lightning is released process, ball discharge is burnt, and described ball discharge is to adopt the high-melting-point slider material to make.Described high-melting-point slider material is silver-colored tungsten carbide slider material or metal transpiration material.Adopt this class material, the volume of ball discharge can be done very for a short time, thereby whole electric discharge device can be done very for a short time; And guarantee that reignition does not damage, after tested, (8/20 μ S lightning wave 160kA) do not damage by big lightning current.
For solving the existing existing discharge voltage problem of unstable of electric discharge device, described ball discharge 13,14 are arranged in the sealing metal box 20, the relative two side faces of described sealing metal box 20 is provided with the coaxial socket 21 that is used for connecting respectively Antenna+Transmitter, one metallic conductor 23 connects the inner wire 211 of two coaxial sockets, described metallic conductor 23 is metallic plate or laths of metal, described a pair of ball discharge 13,14 are arranged in the described sealing metal box 20, wherein a ball discharge 13 is fixedly arranged on the metallic conductor 23 of described connection two coaxial socket inner wires by screw rod 131, another ball discharge 14 is electrically connected with the box body of sealing metal box 20, and the sphere of two ball discharges is relative.
Set firmly an arc metallic support 26 in the box body 24 of described sealing metal box 20, another ball discharge 14 that box body described and the sealing metal box is electrically connected is fixed on the described arc metallic support 26 by an adjusting screw(rod) 141 and clamp nut 142,143.By the length that adjusting screw(rod) 141 stretches out arc metallic support 26, the discharging gap between two ball discharges 13,14 is regulated discharge voltage.
Described sealing metal box 20 is made up of box body 24 and loam cake 25, the seal groove 241 that is provided with suitable for reading of described box body 24, four jiaos are provided with screw 242, be provided with conductive seal circle 243 in the seal groove 241,25 4 jiaos of correspondences of described loam cake are provided with through hole 251, described loam cake 25 is anchored on the suitable for reading of box body 24 by four jiaos through hole 251 usefulness screws 30 and seal washer 31, and with conductive seal circle 243 and box body 24 conductive seals.
For preventing between loam cake 25 and box body 24 suitable for reading electromagnetic leakage to take place, be provided with side 252 to the lower edge around the described loam cake 25, described loam cake is fastened on the suitable for reading of box body by side 252, and be anchored on the suitable for reading of box body, and with conductive seal circle 243 and box body 24 conductive seals with screw 30 and seal washer 31 through hole by four jiaos.
The two bottom sides of described box body 24 also is provided with lug 244, lug 244 is provided with installing hole 245, is mounted on the ground connection pedestal for sealing metal box 20.
Described coaxial socket 21 is the high-power coaxial socket, is provided with taper insulator 213 between the internal and external conductor 211,212 of coaxial socket, and the taper insulator can increase creepage distance, improves the withstand voltage between the socket internal and external conductor.
During use, high-power RF antenna lightning guard well is connected with enough wide qualified ground wire, and with the installation material fixation.Input, out splice going splice are coaxial configuration, can make things convenient for the output of feeder with transmitter or day accent equipment to be connected.The big antennas of impedance variation such as the applicable whip antenna of transmitter below the 5kW power grade, wire antenna, the little accurate broad-band antenna of the applicable impedance variation of transmitter that the 5kW power grade is above.
Claims (8)
1, a kind of high-power RF antenna lightning guard is provided with a pair of ball discharge between feeder line that connects Antenna+Transmitter and ground, it is characterized in that: described ball discharge is made by the high-melting-point slider material.
2, high-power RF antenna lightning guard according to claim 1 is characterized in that: described high-melting-point slider material is silver-colored tungsten carbide, metal transpiration material.
3, high-power RF antenna lightning guard according to claim 1; it is characterized in that: be provided with a sealing metal box; the relative two side faces of described sealing metal box is provided with the coaxial socket that is used for connecting respectively Antenna+Transmitter; one metallic conductor connects the inner wire of two coaxial sockets; described a pair of ball discharge is arranged in the described sealing metal box; wherein a ball discharge is fixedly arranged on the metallic conductor of described connection two coaxial socket inner wires; another ball discharge is electrically connected with the box body of sealing metal box, and two ball discharge spheres are relative.
4, high-power RF antenna lightning guard according to claim 3; it is characterized in that: set firmly an arc metallic support in the described sealing metal box, another ball discharge that box body described and the sealing metal box is electrically connected is fixed on the described arc metallic support by an adjusting screw(rod).
5, high-power RF antenna lightning guard according to claim 3; it is characterized in that: described sealing metal box is made up of box body and loam cake; the seal groove that is provided with suitable for reading of described box body; four jiaos are provided with screw; be provided with the conductive seal circle in the seal groove; four jiaos of correspondences of described loam cake are provided with through hole, and described loam cake is anchored on the suitable for reading of box body by four jiaos through hole with screw and seal washer, and with conductive seal circle and box body conductive seal.
6, high-power RF antenna lightning guard according to claim 5; it is characterized in that: be provided with side to the lower edge around the described loam cake; described loam cake is fastened on the suitable for reading of box body by side; and be anchored on the suitable for reading of box body, and with conductive seal circle and box body conductive seal with screw and the seal washer through hole by four jiaos.
7, high-power RF antenna lightning guard according to claim 5, it is characterized in that: the two bottom sides of described box body also is provided with lug, and lug is provided with installing hole.
8, high-power RF antenna lightning guard according to claim 3, it is characterized in that: described coaxial socket is the high-power coaxial socket, is provided with the taper insulator between the internal and external conductor of coaxial socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201090378U CN201213198Y (en) | 2008-07-04 | 2008-07-04 | Lightning protector for large power radio frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201090378U CN201213198Y (en) | 2008-07-04 | 2008-07-04 | Lightning protector for large power radio frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201213198Y true CN201213198Y (en) | 2009-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201090378U Expired - Lifetime CN201213198Y (en) | 2008-07-04 | 2008-07-04 | Lightning protector for large power radio frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201213198Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102664352A (en) * | 2012-05-22 | 2012-09-12 | 中国人民解放军总参谋部工程兵科研三所 | High-voltage large-current transient automatic discharge switch capable of presetting gaps |
| CN102760932A (en) * | 2011-04-29 | 2012-10-31 | 深圳光启高等理工研究院 | Microwave antenna subsystem |
| CN103166214A (en) * | 2011-12-15 | 2013-06-19 | 北京北广科技股份有限公司 | High-power radio frequency antenna thunder-lightning protection device |
| 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 |
| CN107564635A (en) * | 2017-08-26 | 2018-01-09 | 苏州灵亿易电子科技有限公司 | A kind of lower electric discharge part for clearance lightning-proof |
-
2008
- 2008-07-04 CN CNU2008201090378U patent/CN201213198Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102760932A (en) * | 2011-04-29 | 2012-10-31 | 深圳光启高等理工研究院 | Microwave antenna subsystem |
| CN103166214A (en) * | 2011-12-15 | 2013-06-19 | 北京北广科技股份有限公司 | High-power radio frequency antenna thunder-lightning protection device |
| CN103166214B (en) * | 2011-12-15 | 2016-06-22 | 北京北广科技股份有限公司 | Power radio frequency antenna lightning protection equipment |
| CN102664352A (en) * | 2012-05-22 | 2012-09-12 | 中国人民解放军总参谋部工程兵科研三所 | High-voltage large-current transient automatic discharge switch capable of presetting gaps |
| CN102664352B (en) * | 2012-05-22 | 2013-10-23 | 中国人民解放军总参谋部工程兵科研三所 | High-voltage large-current transient automatic discharge switch capable of presetting gaps |
| 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 |
| CN107564635A (en) * | 2017-08-26 | 2018-01-09 | 苏州灵亿易电子科技有限公司 | A kind of lower electric discharge part for clearance lightning-proof |
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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: Beijing Sino-Sky Hi-Tech Co., Ltd. Assignor: Beijing BBEF Science & Technology Co., Ltd. Contract record no.: 2011990000001 Denomination of utility model: Lightning protector for large power radio frequency antenna Granted publication date: 20090325 License type: Exclusive License Record date: 20110104 |
|
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Beijing Sino-Sky Hi-Tech Co., Ltd. Assignor: Beijing BBEF Science & Technology Co., Ltd. Contract record no.: 2011990000001 Date of cancellation: 20121101 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090325 |