CN219372022U - Short-wave antenna feeder surge protector integrating filter and gas discharge tube - Google Patents
Short-wave antenna feeder surge protector integrating filter and gas discharge tube Download PDFInfo
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- CN219372022U CN219372022U CN202320316938.9U CN202320316938U CN219372022U CN 219372022 U CN219372022 U CN 219372022U CN 202320316938 U CN202320316938 U CN 202320316938U CN 219372022 U CN219372022 U CN 219372022U
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- 230000001012 protector Effects 0.000 title claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 41
- 239000003990 capacitor Substances 0.000 claims description 18
- 239000003989 dielectric material Substances 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 19
- 230000004044 response Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 abstract description 3
- 239000004020 conductor Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005433 ionosphere Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a short-wave antenna feeder surge protector integrating a filter and a gas discharge tube, which comprises a shell, wherein a front transition section, a low-pass filter and a rear transition section are sequentially arranged in the shell; the front transition section comprises a front transition section body and first clamp bodies arranged on two sides of the front transition section body, second clamp bodies matched with the first clamp bodies are arranged on the inner side of the shell, and a gas discharge tube is arranged between the first clamp bodies and the second clamp bodies. The low-pass filter is integrated into the short-wave antenna feeder line surge protector, and can reflect high-frequency components of the surge front edge, so that overvoltage born by the surge protector is improved, and response of the surge protector is accelerated. The residual voltage cut-off generated by the action of the surge protector can enable the frequency band of the surge to move towards the high frequency direction, so that the frequency range of the surge is distinguished from the working frequency range of the short-wave communication system, and the filter can filter the residual voltage cut-off of the surge while the normal operation of the short-wave communication system is not affected.
Description
Technical Field
The utility model belongs to the technical field of electromagnetic compatibility, and particularly relates to a short-wave antenna feeder surge protector integrating a filter and a gas discharge tube.
Background
A short wave antenna feed system is one type of radio communication system. The wavelength is between 50 meters and 10 meters, and the frequency is between 6 MHz and 30 MHz. The transmitted wave can reach the receiving equipment only through the reflection of the ionosphere, and the communication distance is far, so that the method is a main means of remote communication. At present, it is widely used in telegraph, telephone, low-speed facsimile communication, broadcasting, and the like.
Along with the progress of technology, the short-wave antenna feeder system is gradually developed towards miniaturization and sensitivity. However, while the sensitivity is improved, the surge tolerance is inevitably reduced, so that the problem of electromagnetic compatibility of the device is more and more remarkable. In addition, with the development of electronic countermeasure means of various countries, various electric field intensities are higher, the frequency spectrum range is wider, intentional electromagnetic interference with more damage to short-wave communication equipment is successively appeared, the electromagnetic environment that short-wave communication equipment may face is increasingly complex and abominable, and the protection capability of the existing short-wave antenna feeder surge protector can not meet the requirement when facing the complex electromagnetic environment due to the problems of response time and the like, so that it is necessary to design a novel short-wave antenna feeder surge protector to strengthen the protection capability when facing the complex electromagnetic environment.
Considering the surge form that the short wave communication system probably faces, except common lightning surge, high-frequency surge in the antenna receiving frequency range can also appear, the front edge of the surge is steeper, the traditional surge protector is difficult to respond in time, residual voltage with higher amplitude can be generated, and threat is generated to later-stage equipment. Since the frequency of the high-frequency surge is within the receiving frequency of the short-wave antenna, that is, is close to the working frequency of the short-wave communication system, the filter alone cannot distinguish the surges from the normal working signals, and meanwhile, since the power capacity of the filter used in most short-wave communication systems is not high, the filter is possibly damaged by the surge due to the surge protection.
Disclosure of Invention
The utility model aims to provide a short-wave antenna feeder line surge protector integrating a filter and a gas discharge tube so as to solve the problem that the existing protector is difficult to cope with complex electromagnetic environment. The residual voltage cut-off generated by the action of the surge protector can enable the frequency band of the surge to move towards the high frequency direction, so that the frequency range of the surge is distinguished from the working frequency range of the short-wave communication system, and the filter can filter the residual voltage cut-off of the surge while the normal operation of the short-wave communication system is not affected.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a short-wave antenna feeder surge protector integrating a filter and a gas discharge tube comprises a shell, wherein a front transition section, a low-pass filter and a rear transition section are sequentially arranged in the shell;
the front transition section comprises a front transition section body and first clamp bodies arranged on two sides of the front transition section body, a second clamp body matched with the first clamp body is arranged on the inner side of the shell, and a gas discharge tube is arranged between the first clamp body and the second clamp body.
Further, the low-pass filter adopts a Butterworth filter with a three-order coaxial structure and consists of two identical series inductors and one parallel capacitor.
Further, the two same series inductances are respectively a first spiral inductance and a second spiral inductance, and the parallel capacitance is a coaxial capacitance with polytetrafluoroethylene as a dielectric material.
Further, the coaxial capacitor comprises an inner core body and a dielectric material layer arranged outside the inner core body, the inner core body is a solid cylinder, the dielectric material layer is a hollow cylinder, the inner diameter of the dielectric material layer is equal to the outer diameter of the inner core body, and the thickness of the dielectric material layer is 1mm.
Further, the shell, the front transition section, the first spiral inductor, the second spiral inductor, the inner core body and the rear transition section are all made of red copper.
Further, one end of the first spiral inductor is connected with one end of the front transition section body in a threaded and screw mode, the other end of the first spiral inductor is connected with one end of the coaxial capacitor in a threaded and screw mode, one end of the second spiral inductor is connected with the other end of the coaxial capacitor in a threaded and screw mode, and the other end of the second spiral inductor is connected with one end of the rear transition section in a threaded and screw mode.
Further, the diameter of the gas discharge tube is less than or equal to 10mm, and the height of the gas discharge tube is less than or equal to 8mm.
Further, the housing is composed of a first housing body and a second housing body which are symmetrical, and an installation space for installing the front transition section, the low-pass filter and the rear transition section is formed between the first housing body and the second housing body.
Further, both sides of the first housing body and the second housing body are connected through square flange plates.
Further, heat dissipation fins are arranged on one sides, away from each other, of the first shell body and the second shell body.
Compared with the prior art, the utility model has the following beneficial technical effects:
the short-wave antenna feeder line surge protector integrates the gas discharge tube and the low-pass filter, comprehensively utilizes the characteristics of high through flow capacity, high surge tolerance capacity, low response speed, poor surge protection effect and low-pass filter response speed of the gas discharge tube, has good surge protection effect, poor through flow capacity and poor surge tolerance capacity, and ensures that the low-pass filter accelerates the response speed of the gas discharge tube through structural design, and meanwhile, the gas discharge tube bears most of surge energy, and residual energy is further filtered by using the low-pass filter, thereby realizing the complementation of advantages between the gas discharge tube and the low-pass filter and greatly improving the protection capacity for various surges.
Further, the gas discharge tube is connected into the equipment by using the first clamp body and the second clamp body and is in parallel connection with normal signals of the equipment, and the gas discharge tube can be conducted to discharge a surge to the ground when the surge arrives, so that the equipment after the surge is protected from being damaged by the surge.
Further, the low-pass filter is composed of two identical series inductances and a parallel capacitor, so that a low-frequency short-wave signal can pass through, and a high-frequency surge is prevented from passing through, and the influence of the high-frequency surge is restrained under the condition that the normal work of a short-wave system is not interfered.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
fig. 3 is an external view of the present utility model.
In the figure, 1, a front transition section; 2. a first spiral inductor; 3. a coaxial capacitor; 4. a second spiral inductor; 5. a rear transition section; 6. a housing; 7. a first clamp body; 8. a second clamp body; 9. square flange.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model provides a novel short-wave antenna feeder line surge protector structure, which integrates a low-pass filter behind a gas discharge tube. The low-pass filter can reflect the high-frequency component of the surge front edge, so that the overvoltage born by the gas discharge tube is improved, and the response is accelerated. The residual voltage cut wave generated by the action of the gas discharge tube can move the frequency band of the surge to the high-frequency direction, so that the frequency range of the surge is distinguished from the working frequency range of the short-wave communication system, and the filter can filter the residual voltage cut wave of the surge while the normal operation of the short-wave communication system is not influenced.
The short-wave communication system refers to a wireless communication system with the communication frequency of 2-30MHz, and the structure of the system generally comprises at least one antenna, one signal receiver and an antenna feeder for connecting the antenna and the signal receiver, wherein high-frequency surges comprise nuclear electromagnetic pulses, ultra-wideband electromagnetic pulses and other surges with pulse frequency bands close to or comprising the working frequency bands of the short-wave communication system; the protection capability is defined as the peak surge current attenuation exceeding 40dB or the peak surge current not greater than 10A after protection by the protector.
Specifically, the short-wave antenna feeder surge protector integrated with a filter and a gas discharge tube comprises a shell 6, a front transition section 1, a low-pass filter consisting of a first spiral inductor 2, a second spiral inductor 4 and a coaxial capacitor 3, and a rear transition section 5; the front transition section 1 comprises a front transition section body and first clamp bodies 7 arranged on two sides of the front transition section body, a Butterworth filter with a three-order coaxial structure is arranged on the inner side of the shell 6, a gas discharge tube is arranged between the first clamp bodies 7 and the second clamp bodies 8, the diameter of the gas discharge tube is not more than 10mm, the height of the gas discharge tube is not more than 8mm, the low-pass filter is a low-pass filter with passband frequency of 2-30MHz, the stopband frequency is 105MHz+, passband insertion loss is not more than 1dB, the stopband insertion loss is not less than 40dB, the rated power capacity of the low-pass filter is 1kW, specifically, the low-pass filter is a Butterworth filter with a three-order coaxial structure, the circuit of the Butterworth filter is composed of two identical first spiral inductors 2 and second spiral inductors 4 which are connected in series, and a parallel coaxial capacitor 3, the first spiral inductors 2 and the second spiral inductors 4 all use spiral coaxial inductors, the coaxial capacitors 3 are coaxial capacitors using polytetrafluoroethylene as dielectric materials, the thickness of the coaxial capacitors 3 is not less than 1mm, the thickness of the coaxial capacitors is not less than 1mm, the thickness of the spiral inductors are connected with the shell 6 mm, the two spiral inductors are connected with the shell segments by adopting a square flange structure, the two-shaped heat dissipation flange structures are connected with the two side flanges of the shell segments, the two shell segments are 25, the two shell segments 25 have a square flange structure, the two-25 and the two flange structures are connected with the two flange structures are sequentially, and the two flange structures are connected with the shell segments and the two flange structures are connected with the shell structures and has a 3.
The gas discharge tube is a nonlinear surge protection component, when the bearing voltage exceeds the conducting voltage, the gas discharge tube is converted from an open circuit state to a short circuit state, the gas discharge tube is connected into the equipment by using the first clamp body 7 and the second clamp body 8 and is in parallel connection with normal signals of the equipment, and when the surge arrives, the device is conducted and discharges the surge to the ground, so that the equipment after the protection is protected from the surge.
The low-pass filter is sequentially connected with a first spiral inductor 2, a coaxial capacitor 3 and a second spiral inductor 4 in series, a front transition section 1 is connected in series at the front end, a rear transition section 5 is connected in series at the rear end, the front and rear transition sections are all made of pure red copper, the inner conductor part is jointly formed, the low-pass filter is connected with a shell 6 through two 25 x 25mm four-hole flange type N-KF interfaces at the two ends, the shell 6 is made of pure red copper, radiating fins are carved on the two sides of the shell to enhance the radiating performance, and the 25 x 25mm four-hole flange type N-KF interfaces can be connected with the shell 6 through square flange plates 9 on the shell 6 and have the functions of fixing an inner conductor and an input/output interface.
Examples
The short-wave antenna feeder line surge protector disclosed by the embodiment of the utility model has large power capacity and strong protection capability on various surges, and can be applied to replacement when the protection capability of the traditional surge protector cannot meet the requirement.
As shown in fig. 1 and fig. 2, a short-wave antenna feeder surge protector comprises a shell 6 and an inner conductor, wherein the inner conductor comprises a front transition section 1, a first spiral inductor 2, a second spiral inductor 4, a coaxial capacitor 3 and a rear transition section 5, the front transition section 1 and the coaxial capacitor 3 are connected through threads on two sides of the first spiral inductor 2 and the second spiral inductor 4, screw holes on the rear transition section 5 are formed, and the inner conductor is connected with the shell 6 through two 25 x 25mm four-hole flange type N-KF interfaces on two ends. The user needs to purchase two 25 x 25mm four-hole flange type N-KF interfaces by himself, and fix the interface card on the square flange 9 of the outer shell 6 by using M4 screws for connecting the inner conductor and the outer shell 6, and as the input/output interface of the utility model, the assembled short-wave antenna feeder surge protector is shown in figure 3.
The utility model needs the user to select the gas discharge tube by himself as the traditional surge protector, the selected gas discharge tube should be the gas discharge tube of two poles, the gas discharge tube is placed between the first clamp body 7 and the second clamp body 8, its diameter should not be greater than 10mm, the height should not be greater than 8mm. The two poles of the gas discharge tube are respectively in close contact with the first clamp body 7 and the second clamp body 8, and if the height of the gas discharge tube is insufficient, a proper metal gasket is matched to ensure that the gas discharge tube is in good contact with the two ends of the clamp.
The foregoing is merely one embodiment, not all or only one embodiment, and any equivalent modifications of the technical solution of the present utility model by those skilled in the art after reading the present specification are intended to be encompassed by the claims of the present utility model.
Claims (10)
1. The shortwave antenna feeder surge protector integrating the filter and the gas discharge tube is characterized by comprising a shell (6), wherein a front transition section (1), a low-pass filter and a rear transition section (5) are sequentially arranged in the shell (6);
the front transition section (1) comprises a front transition section body and first clamp bodies (7) arranged on two sides of the front transition section body, second clamp bodies (8) matched with the first clamp bodies (7) are arranged on the inner side of the shell (6), and gas discharge tubes are arranged between the first clamp bodies (7) and the second clamp bodies (8).
2. The short-wave antenna feeder surge protector integrating a filter and a gas discharge tube according to claim 1, wherein the low-pass filter is a butterworth filter with a three-order coaxial structure, and is composed of two identical series inductances and a parallel capacitance.
3. A short wave antenna feeder surge protector integrating a filter and a gas discharge tube according to claim 2, characterized in that said two identical series inductances are a first spiral inductance (2) and a second spiral inductance (4), respectively, and said parallel capacitance is a coaxial capacitance (3) using polytetrafluoroethylene as a dielectric material.
4. A short-wave antenna feeder surge protector integrating a filter and a gas discharge tube according to claim 3, wherein the coaxial capacitor (3) comprises an inner core body and a dielectric material layer arranged outside the inner core body, the inner core body is a solid cylinder, the dielectric material layer is a hollow cylinder, the inner diameter of the dielectric material layer is equal to the outer diameter of the inner core body, and the thickness of the dielectric material layer is 1mm.
5. The short wave antenna feeder surge protector integrating a filter and a gas discharge tube according to claim 4, wherein the outer shell (6), the front transition section (1), the first spiral inductor (2), the second spiral inductor (4), the inner core body and the rear transition section (5) are all made of red copper.
6. The short-wave antenna feeder surge protector integrating the filter and the gas discharge tube according to claim 3, wherein one end of the first spiral inductor (2) is connected with one end of the front transition section body in a threaded and screw mode, the other end of the first spiral inductor (2) is connected with one end of the coaxial capacitor (3) in a threaded and screw mode, one end of the second spiral inductor (4) is connected with the other end of the coaxial capacitor (3) in a threaded and screw mode, and the other end of the second spiral inductor (4) is connected with one end of the rear transition section (5) in a threaded and screw mode.
7. The short wave antenna feeder surge protector integrating a filter and a gas discharge tube as claimed in claim 1, wherein the diameter of the gas discharge tube is less than or equal to 10mm and the height is less than or equal to 8mm.
8. A short-wave antenna feeder surge protector integrating a filter and a gas discharge tube according to claim 1, characterized in that the housing (6) is composed of a first housing body and a second housing body which are symmetrical, and an installation space for installing the front transition section (1), the low-pass filter and the rear transition section (5) is formed between the first housing body and the second housing body.
9. The short-wave antenna feeder surge protector of claim 8, wherein the two sides of the first housing body and the second housing body are connected by square flanges (9).
10. The short wave antenna feeder surge protector of claim 8, wherein the first housing body and the second housing body are provided with heat dissipation fins on sides thereof away from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320316938.9U CN219372022U (en) | 2023-02-24 | 2023-02-24 | Short-wave antenna feeder surge protector integrating filter and gas discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320316938.9U CN219372022U (en) | 2023-02-24 | 2023-02-24 | Short-wave antenna feeder surge protector integrating filter and gas discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219372022U true CN219372022U (en) | 2023-07-18 |
Family
ID=87144754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320316938.9U Active CN219372022U (en) | 2023-02-24 | 2023-02-24 | Short-wave antenna feeder surge protector integrating filter and gas discharge tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219372022U (en) |
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2023
- 2023-02-24 CN CN202320316938.9U patent/CN219372022U/en active Active
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