CN202134909U - Antenna lightning protection device and antenna surge protection structure - Google Patents
Antenna lightning protection device and antenna surge protection structure Download PDFInfo
- Publication number
- CN202134909U CN202134909U CN201120278910U CN201120278910U CN202134909U CN 202134909 U CN202134909 U CN 202134909U CN 201120278910 U CN201120278910 U CN 201120278910U CN 201120278910 U CN201120278910 U CN 201120278910U CN 202134909 U CN202134909 U CN 202134909U
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- antenna
- lightning protection
- protection device
- surge
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Abstract
The utility model discloses an antenna lightning protection device, which comprises a casing and a circuit part in the casing, wherein the casing is provided with two coaxial connectors respectively connected with the surge port and the protection port of the circuit part, the circuit part comprises a filter circuit and a lightning protection circuit, the filter circuit comprises a first capacitor, a first inductor, a second inductor, a first bypass capacitor and a second bypass capacitor, and the lightning protection circuit comprises a gas discharge tube, a lightning protection inductor and a TVS tube. Compared with the prior art, the antenna lightning protection device and the antenna surge protection structure are suitable for the lightning protection of a 500kV transformer station, avoid the insecurity and difficulty of impedance matching and antenna replacing, and can satisfy the requirements of water resistance and dust resistance with an IP grade of 67; and the antenna lightning protection device and the antenna surge protection structure are also suitable for a GPS communication system base station with a frequency range of from 1.2 to 2.5GHz, avoid overvoltage damage such as induction lightning stroke led in by an antenna, and protect a product from influence after the invasion of high-strength wind power and rainwater.
Description
Technical field
The utility model relates to a kind of antenna lightning protection device, belongs to a kind of lightning protection device of electronic product.
Background technology
In the prior art, a signal interference that often receives the power station, thunderbolt etc. because outdoor antenna is pestered, damage is difficult for replacing again easily.
Summary of the invention
The purpose of the utility model is: in order to solve the problems referred to above that conventional art exists, protection electronics (communication) system makes it exempt from the overvoltage of being introduced by antenna such as indirect lightning strike and damages, and proposes a kind of new antenna lightning protection device.
The purpose of the utility model realizes through following scheme: comprise the circuit part in housing and the housing; Said housing is provided with two coaxial connectors, is connected with the protection port with the surge port of circuit part respectively; Said circuit part comprises filter circuit and lightning protection circuit; Said filter circuit comprises first electric capacity, first inductance, second inductance, first shunt capacitance and second shunt capacitance; First electric capacity is connected across between surge port and the protection port; One end of first inductance is connected with the surge port, and the other end is connected with an end of first shunt capacitance, the other end ground connection of first shunt capacitance; One end of second inductance is connected with the protection port, and the other end is connected with an end of second shunt capacitance, the other end ground connection of second shunt capacitance; Said lightning protection circuit comprises gas discharge tube, lightning protection inductance and TVS pipe; One end of gas discharge tube is connected other end ground connection with the non-earth terminal of first shunt capacitance; One end of TVS pipe is connected other end ground connection with the non-earth terminal of second shunt capacitance; The cross-over connection of said lightning protection inductance is between the non-earth terminal that the non-earth terminal and the TVS of gas discharge tube manage.
The utility model also comprises piezo-resistance; Said lightning protection inductance is made up of two identical inductance series connection; One end of piezo-resistance is connected the points of common connection of this two inductance, other end ground connection.
The said frame ground of the utility model; The earthing of casing of coaxial connector.
The utility model also provides a kind of antenna surge protection structure of utilizing said antenna lightning protection device, comprises antenna, receiver, feeder line and two described antenna lightning protection devices; The output of said antenna connects the surge port of the first antenna lightning protection device, and the protection port of the first antenna lightning protection device connects an end of feeder line; The other end of feeder line connects the surge port of the second antenna lightning protection device, and the protection port of the second antenna lightning protection device connects the signal input part of receiver; The earth terminal of the earth terminal of the said first antenna lightning protection device and the second antenna lightning protection device, the earth terminal of feeder line and receiver is all through corresponding ground connection copper bar ground connection.
Said second antenna lightning protection device of the utility model and receiver all are located in the machine room.
The earth terminal of the said feeder line of the utility model is divided into two, lays respectively at the front-end and back-end of feeder line.
The coaxial connector place of two antenna lightning protection devices of the utility model carries out increasing rainproof, a proofing dust and protecting glue again after high-grade rainproof, the dustproof protection.
What the said antenna lightning protection device of the utility model adopted is N type connector.
Compared with prior art, the utility model is applicable to the lightning protection that solves 500kV transformer station, and impedance matching and insecurity and difficulty when changing antenna can satisfy the IP grade and be 67 water proof and dust proof requirement; Simultaneously also be applicable to 1.2 ~ 2.5GHz frequency range GPS communication system base station, make it exempt from the overvoltage of introducing by antenna such as indirect lightning strike and damage, guaranteed after the invasion and attack of high-intensity wind-force, rainwater, product not to be produced any influence.
Description of drawings
Fig. 1 is the circuit theory sketch map of the said antenna lightning protection device of the utility model embodiment 1.
Fig. 2 is the circuit theory sketch map of the said antenna lightning protection device of the utility model embodiment 2.
Fig. 3 is the antenna surge protection structural representation that utilizes the said antenna lightning protection device of the utility model.
Embodiment
Below in conjunction with accompanying drawing and control Example the utility model is described further.
With reference to figure 1, present embodiment comprises the circuit part in housing and the housing; Said housing is provided with two coaxial connector F, is connected B with the surge port A of circuit part with the protection port respectively; Said circuit part comprises filter circuit and lightning protection circuit.
Said filter circuit comprises first capacitor C 1, first inductance L 1, second inductance L 2, the first shunt capacitance C2 and the second shunt capacitance C3; First capacitor C 1 is connected across between surge port A and the protection port B; One end of first inductance L 1 is connected with surge port A, and the other end is connected with the end of the first shunt capacitance C2, the other end ground connection of the first shunt capacitance C2; One end of second inductance L 2 is connected with protection port B, and the other end is connected with the end of the second shunt capacitance C3, the other end ground connection of the second shunt capacitance C3.
Said lightning protection circuit comprises gas discharge tube G1, lightning protection inductance L and TVS pipe VD1; The end of gas discharge tube G1 is connected other end ground connection with the non-earth terminal of the first shunt capacitance C2; The end of TVS pipe VD1 is connected other end ground connection with the non-earth terminal of the second shunt capacitance C3; Said L cross-over connection is managed between the non-earth terminal of VD1 in non-earth terminal and the TVS of gas discharge tube G1.
Embodiment 2
Referring to Fig. 2, present embodiment also comprises piezo-resistance RV1; Said lightning protection inductance L is made up of two the 3rd identical inductance L 3 and 4 series connection of the 4th inductance L; The end of piezo-resistance RV1 connects the points of common connection of the 3rd inductance L 3 and inductance L 4, other end ground connection.Other structure is identical with embodiment 1.
Said frame ground; The earthing of casing of two coaxial connectors.
With reference to figure 3, the utility model also provides the antenna surge protection that uses above-mentioned antenna lightning protection device structure, comprises antenna 1, receiver 4, feeder line 3 and two described antenna lightning protection devices, i.e. the first antenna lightning protection device 21, the second antenna lightning protection device 22; The output of said antenna 1 connects the surge port of the first antenna lightning protection device 21, and the protection port of the first antenna lightning protection device 21 connects an end of feeder line 3; The other end of feeder line 3 connects the surge port of the second antenna lightning protection device 22, and the protection port of the second antenna lightning protection device 22 connects the signal input part of receiver 4; The earth terminal of the earth terminal of the said first and second antenna lightning protection devices 21,22, the earth terminal of feeder line 3 and receiver 4 is all through corresponding ground connection copper bar 6 ground connection.The said second antenna lightning protection device 22 all is located in the machine room 5 with receiver 4.Be provided with dust and water protection protection glue at the coaxial connector place of two antenna lightning protection devices.The earth terminal of feeder line 3 is divided into two, lays respectively at the front-end and back-end of feeder line.
What the described antenna lightning protection device of the utility model adopted is N type connector, and what be installed in that the first antenna lightning protection device at antenna place connects antenna is public head, and what connect feeder line is female head; What be installed in the interior second antenna lightning protection device connection receiver (wire jumper) of machine room is public head, and what connect feeder line is female head.The requirement of antenna lightning protection device earth connection is: cross-sectional area is not less than 6mm
2The earthing of casing line of receiver is directly received on the ground connection copper bar of antenna lightning protection device.
Claims (9)
1. an antenna lightning protection device is characterized in that: comprise the circuit part in housing and the housing; Said housing is provided with two coaxial connectors, is connected with the protection port with the surge port of circuit part respectively; Said circuit part comprises filter circuit and lightning protection circuit; Said filter circuit comprises first electric capacity, first inductance, second inductance, first shunt capacitance and second shunt capacitance; First electric capacity is connected across between surge port and the protection port; One end of first inductance is connected with the surge port, and the other end is connected with an end of first shunt capacitance, the other end ground connection of first shunt capacitance; One end of second inductance is connected with the protection port, and the other end is connected with an end of second shunt capacitance, the other end ground connection of second shunt capacitance; Said lightning protection circuit comprises gas discharge tube, lightning protection inductance and TVS pipe; One end of gas discharge tube is connected other end ground connection with the non-earth terminal of first shunt capacitance; One end of TVS pipe is connected other end ground connection with the non-earth terminal of second shunt capacitance; The cross-over connection of said lightning protection inductance is between the non-earth terminal that the non-earth terminal and the TVS of gas discharge tube manage.
2. antenna lightning protection device according to claim 1, its characteristic is: comprise piezo-resistance; Said lightning protection inductance is made up of two identical inductance series connection; One end of piezo-resistance is connected the points of common connection of this two inductance, other end ground connection.
3. antenna lightning protection device according to claim 1 and 2 is characterized in that: said frame ground; The earthing of casing of coaxial connector.
4. the antenna surge protection structure of use such as the arbitrary said antenna lightning protection device of claim 1～3 comprises antenna, receiver, feeder line and earth mat, it is characterized in that: also comprise two described antenna lightning protection devices; The output of said antenna connects the surge port of the first antenna lightning protection device, and the protection port of the first antenna lightning protection device connects an end of feeder line; The other end of feeder line connects the surge port of the second antenna lightning protection device, and the protection port of the second antenna lightning protection device connects the signal input part of receiver; The earth terminal of the earth terminal of the said first antenna lightning protection device and the second antenna lightning protection device, the earth terminal of feeder line and receiver is all through corresponding ground connection copper bar ground connection.
5. antenna surge protection structure according to claim 4 is characterized in that: said second antenna lightning protection device and receiver all are located in the machine room.
6. antenna surge protection structure according to claim 4, it is characterized in that: the earth terminal of said feeder line is divided into two, lays respectively at the front-end and back-end of feeder line.
7. according to claim 4 or 5 or 6 described antenna surge protection structures, it is characterized in that: the coaxial connector place of two antenna lightning protection devices is provided with dust and water protection glue.
8. according to claim 4 or 5 or 6 described antenna surge protection structures, it is characterized in that: what the antenna lightning protection device adopted is N type connector.
9. according to claim 4 or 5 or 6 described antenna surge protection structures, it is characterized in that: the cross-sectional area of antenna lightning protection device earth connection is not less than 6mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120278910U CN202134909U (en) | 2011-08-03 | 2011-08-03 | Antenna lightning protection device and antenna surge protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120278910U CN202134909U (en) | 2011-08-03 | 2011-08-03 | Antenna lightning protection device and antenna surge protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202134909U true CN202134909U (en) | 2012-02-01 |
Family
ID=45523666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120278910U Expired - Fee Related CN202134909U (en) | 2011-08-03 | 2011-08-03 | Antenna lightning protection device and antenna surge protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202134909U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208025A (en) * | 2016-08-31 | 2016-12-07 | 庹先宏 | Short-wave antenna lightning protection circuit |
| CN106253257A (en) * | 2016-08-31 | 2016-12-21 | 庹先宏 | Short-wave antenna is anti-lightning strike adds sensor |
| CN110994204A (en) * | 2019-12-30 | 2020-04-10 | 深圳市有方科技股份有限公司 | External antenna circuit and external antenna device |
-
2011
- 2011-08-03 CN CN201120278910U patent/CN202134909U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106208025A (en) * | 2016-08-31 | 2016-12-07 | 庹先宏 | Short-wave antenna lightning protection circuit |
| CN106253257A (en) * | 2016-08-31 | 2016-12-21 | 庹先宏 | Short-wave antenna is anti-lightning strike adds sensor |
| CN110994204A (en) * | 2019-12-30 | 2020-04-10 | 深圳市有方科技股份有限公司 | External antenna circuit and external antenna device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20120803 |