CN202042891U - Lightning protection device of airplane surface antenna system - Google Patents
Lightning protection device of airplane surface antenna system Download PDFInfo
- Publication number
- CN202042891U CN202042891U CN2011200454434U CN201120045443U CN202042891U CN 202042891 U CN202042891 U CN 202042891U CN 2011200454434 U CN2011200454434 U CN 2011200454434U CN 201120045443 U CN201120045443 U CN 201120045443U CN 202042891 U CN202042891 U CN 202042891U
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- China
- Prior art keywords
- antenna system
- aircraft
- lightning protection
- aircraft surfaces
- airplane
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- Expired - Lifetime
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Abstract
The utility model discloses a lightning protection device of an airplane surface antenna system, characterized in that a lightning protection device is in series in a signal sending and receiving circuit of the airplane surface antenna system, and the signal sending and receiving circuit of the airplane surface antenna system is connected with the airplane surface antenna via a high frequency feeder line. In the utility model, the insertion loss of a high-frequency lightning suppresser is small, and the caused high-frequency signal loss is in the allowable range of the antenna system, so that the lightning protection device of the airplane surface antenna system possesses good anti lightning strike impact effect, the effect on the high-frequency signal is very small, and by using the lightning protection device of the airplane surface antenna system, the effective protections for the signal sending and receiving device of the airplane antenna system and the airplane internal devices can be realized.
Description
Technical field
The utility model relates to the lightning protection circuit of aircraft surfaces antenna system.
Background technology
The aircraft antenna system is a communicating devices mutually between transmission and received signal, realization aircraft and ground, aircraft and the aircraft on the aircraft.During operate as normal,, modulation signal is gone out by the aerial radiation of aircraft outer surface by the sender unit of interior of aircraft when needs send message; When need receiving message, the signal receiving device by interior of aircraft recovers the electromagnetic signal that antenna receives.The antenna of aircraft antenna system belongs to the conductive magneto-conductive material and is installed on aircraft surfaces, subjects to thunderbolt.When antenna is struck by lightning, will conducts the thunder and lightning high voltage on the aircraft antenna, and can enter interior of aircraft, thereby aircraft will be caused the harm that is difficult to predict along the signal transmission and the receiving circuit of aircraft antenna system.Because the operating frequency of aircraft antenna system is high frequency, hyperfrequency or very high frequency(VHF), traditional lightning protection component be because the shortcoming of self can make the high-frequency signal attenuation loss excessive, thereby influences the service behaviour of aircraft antenna system.
The utility model content
The utility model is for avoiding above-mentioned existing in prior technology weak point, a kind of aircraft surfaces antenna system thunderstorm electricity protective device being provided, in the hope of the lightning protection of solution aircraft surfaces antenna system and the contradiction of high-frequency signal input and output loss.
The utility model technical solution problem adopts following technical scheme:
The design feature of the utility model aircraft surfaces antenna system thunderstorm electricity protective device is that series connection is provided with lightning protection component in the signal transmission of aircraft surfaces antenna system and receiving circuit, and the signal of described aircraft surfaces antenna system sends and receiving circuit is connected with the aircraft surfaces antenna by high-frequency feed line.
The design feature of the utility model aircraft surfaces antenna system thunderstorm electricity protective device also is:
Described lightning protection component is the high frequency thunder and righting blanker.
Described high frequency thunder and righting blanker is gas discharge tube D, metal zinc oxide pottery pressure-sensitive device R, bipolarity Transient Suppression Diode TVS or is unipolarity Transient Suppression Diode TVS1 and TVS2 series connection.
In the utility model, when aircraft surfaces antenna system operate as normal, the high frequency thunder and righting blanker is because interelectrode capacitance is very little and stable, and high-frequency signal can enter to low-loss the transmission and the receiving system of aircraft antenna system; In case antenna is struck by lightning, when the thunder and lightning high voltage that conducts on the aircraft surfaces antenna surpasses the nominal voltage of high frequency thunder and righting blanker, the high frequency thunder and righting blanker suppresses thunder and lightning high voltage on the antenna high-frequency feed line and big electric current to release, and can remaining thunder and lightning high voltage and big electric current be suppressed to release by the high frequency thunder and righting blanker that is provided with.Compared with the prior art, when the utility model is struck by lightning in the aircraft surfaces antenna system, can implements effectively protection to the transmission of aircraft antenna system and receiving system and interior of aircraft equipment, thereby guarantee the safety of aircraft.
Description of drawings
Fig. 1 is the lightning protection circuit theory diagrams of the utility model aircraft surfaces antenna system.
Fig. 2 a, Fig. 2 b, Fig. 2 c and Fig. 2 d are different high frequency thunder and righting blanker spare schematic diagrams in the utility model.
Embodiment
Present embodiment is that series connection is provided with lightning protection component in the signal transmission of aircraft surfaces antenna system and receiving circuit, and the signal of aircraft surfaces antenna system sends and receiving circuit is connected with the aircraft surfaces antenna by high-frequency feed line; Lightning protection component is the high frequency thunder and righting blanker, can or be metal zinc oxide pottery pressure-sensitive device R (shown in Fig. 2 b) or for bipolarity Transient Suppression Diode TVS (shown in Fig. 2 c) or be unipolarity Transient Suppression Diode TVS1 and TVS2 series connection (shown in Fig. 2 d) for gas discharge tube D (shown in Fig. 2 a).
Number in the figure: 1 antenna; 2 fixed supports; 3 front end high-frequency feed line; 4 high frequency thunder and righting blankers; 5 rear end high-frequency feed line; 6 signals send and receiving circuit
Concrete enforcement as shown in Figure 1, the fixed support 2 of aircraft surfaces antenna 1 is connected by an end of front end high-frequency feed line 3 and high frequency thunder and righting blanker 4, and the signal that the other end of high frequency thunder and righting blanker 4 is guided the aircraft antenna system into by rear end high-frequency feed line 5 sends and receiving circuit 6.The signal of aircraft antenna system sends and the power line V and the holding wire S of receiving system 6 guide interior of aircraft respectively into.Aircraft surfaces antenna 1 and fixed support 2 thereof and aircraft surfaces insulation, the signal of the earth terminal of high frequency thunder and righting blanker 4 and aircraft antenna system send and the earth terminal of receiving system 6 is guided ground GND respectively nearby into.
In the utility model, because the insertion loss of high frequency thunder and righting blanker is little, to the loss of high-frequency signal in the allowed band of antenna system, therefore not only has good anti-thunderbolt impact effect, and very little to the high-frequency signal influence, can realize the signal transmission of aircraft antenna system and effective protection of receiving system and interior of aircraft equipment.
Claims (3)
1. aircraft surfaces antenna system thunderstorm electricity protective device, it is characterized in that the signal of aircraft surfaces antenna system send and receiving circuit in series connection lightning protection component is set, the signal of described aircraft surfaces antenna system sends and receiving circuit is connected with the aircraft surfaces antenna by high-frequency feed line.
2. aircraft surfaces antenna system thunderstorm electricity protective device according to claim 1 is characterized in that described lightning protection component is the high frequency thunder and righting blanker.
3. aircraft surfaces antenna system thunderstorm electricity protective device according to claim 2 is characterized in that described high frequency thunder and righting blanker is gas discharge tube D, metal zinc oxide pottery pressure-sensitive device R, bipolarity Transient Suppression Diode TVS or is unipolarity Transient Suppression Diode TVS1 and TVS2 series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200454434U CN202042891U (en) | 2011-02-22 | 2011-02-22 | Lightning protection device of airplane surface antenna system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200454434U CN202042891U (en) | 2011-02-22 | 2011-02-22 | Lightning protection device of airplane surface antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202042891U true CN202042891U (en) | 2011-11-16 |
Family
ID=44970316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200454434U Expired - Lifetime CN202042891U (en) | 2011-02-22 | 2011-02-22 | Lightning protection device of airplane surface antenna system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202042891U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578028A (en) * | 2014-11-28 | 2015-04-29 | 上海航空电器有限公司 | Lightning indirect effect protective structure of airborne equipment |
-
2011
- 2011-02-22 CN CN2011200454434U patent/CN202042891U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578028A (en) * | 2014-11-28 | 2015-04-29 | 上海航空电器有限公司 | Lightning indirect effect protective structure of airborne equipment |
| CN104578028B (en) * | 2014-11-28 | 2019-03-05 | 上海航空电器有限公司 | A kind of lightning indirect effect protection structure of airborne equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |