CN201594584U - Antenna feeder lightning-proof device - Google Patents
Antenna feeder lightning-proof device Download PDFInfo
- Publication number
- CN201594584U CN201594584U CN2009202828571U CN200920282857U CN201594584U CN 201594584 U CN201594584 U CN 201594584U CN 2009202828571 U CN2009202828571 U CN 2009202828571U CN 200920282857 U CN200920282857 U CN 200920282857U CN 201594584 U CN201594584 U CN 201594584U
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- China
- Prior art keywords
- antenna feeder
- lightning
- protection device
- proof device
- lightning protection
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Abstract
The utility model discloses an antenna feeder lightning-proof device which comprises a casing (1), a grounding bolt (2), a core wire (3), a gas discharge tube (4) arranged in a cavity (6) formed by the casing (1), a first connection part (8) and a second connection part (9), wherein the first connection part (8) and the second connection part (9) are integrally connected and respectively positioned at the two ends of the casing (1). The device is characterized in that the grounding bolt (2) is arranged in a blind hole (11) on the casing (1). The antenna feeder lightning-proof device provided by the utility model adopts the manner of mounting the grounding bolt in the blind hole, thereby ensuring that internal impedance of the lightning-proof device is not influenced during the operation process, and realizing convenient and safe operation; and at the same time, by adopting the installation and clamping part with dedicated design, parameter variation inside the lightning-proof device, impedance mismatching and the influence on transmission performance caused by error operation of the lightning-proof device body are prevented.
Description
One, technical field
The utility model relates to a kind of lightning protection device, relates in particular to a kind of lightning protection device that is used for the mobile communication antenna feeder.
Two, background technology
What the lightning arrester of the existing coaxial antenna feeder of tracking exchage adopted is the coaxial type lightning arrester, the disclosed lightning arrester of for example Chinese utility model patent CN200820187098.6.Existing coaxial type lightning arrester structure generally connects as one coaxial cable electric connector and lightning arrester; being provided with lightning current in the lightning arrester draws and lets out line; lightning current draws to be let out line and is provided with an earth terminal; thereby realize opening the lightning protection function of feeder line; when thunder amplification current occurring; rapidly lightning current is directly introduced the earth, reach the purpose that feedback system and communication system are opened in protection.Simultaneously, it must guarantee the laser propagation effect of signal.Similarly, adopt gas discharge tube as the antenna feeder lightning arrester of letting out electric device in addition.Because it is outdoor that antenna feeder arrester generally is installed in, and also should make things convenient for fitting operation.The antenna feeder lightning arrester generally all is provided with the link of ground connection.Existing antenna feeder lightning protection device ground connection is generally all adopted through hole (being that earth connection is communicated with the product cavity by nut), when adopting this kind structure, can be because the difference of grounding nut lifting position causes the variation of coaxial lightning protection device bulk properties impedance, and then influences the transmission performance of signal; In addition,, easily make operating personnel's misoperation during fitting operation at the scene, cause the damage and the decreased performance of lightning protection device because existing antenna feeder lightning protection device external structure is easy to be unscrewed moving by instrument or open.
Three, summary of the invention
1, technical problem: the technical problems to be solved in the utility model provides that a kind of signal transmission performance is good, the antenna feeder lightning protection device of structural design safety.
2, technical scheme: in order to solve above-mentioned technical problem, the interior gas discharge tube of cavity that antenna feeder lightning protection device of the present utility model comprises shell, earthing screw, heart yearn, places shell to form, and first, second connecting portion that connects as one and lay respectively at the shell two ends with shell, described earthing screw is arranged in the blind hole on the shell, promptly is not communicated with between earthing screw and the cavity.The disconnected structure of this earthing screw and cavity, make the technical program lightning protection device when mounted, its bulk properties impedance can not be affected because of the lifting of earthing screw position, influences its signal transmission performance.
The nut of operation when described first connecting portion is provided with for installation.
Be provided with the transition connecting portion between described second connecting portion and the shell, the transition connecting portion is provided with an end face, this end face is convenient to fitting operation personnel usefulness tool holding lightning protection device integral body, certain location not on the random clamping lightning protection device of operating personnel's tool using in the time of can preventing to operate, when applying power, can cause the variation of lightning protection device inner parameter, thereby destroy the impedance matching of lightning protection device, and then influence signal transmission performance.
Described gas discharge tube places between the housing interior dielectric and the seal cover on the housing, and the seal cover of stating is installed in position corresponding with gas discharge tube on the housing removably, is convenient to change the gas discharge tube of damage.
3, beneficial effect
The mode that antenna feeder lightning protection device of the present utility model adopts the earthing screw blind hole to install, the internal driving of assurance lightning protection device is not subjected to the influence of operating process, simple operation safety; Adopt custom-designed installation clamping part simultaneously, prevent the lightning protection device body by misoperation, cause the lightning protection device inner parameter to change, impedance mismatching influences transmission performance.
Four, description of drawings
Fig. 1 is the structural representation of the new antenna feeder lightning protection device of this practicality;
Fig. 2 is the earthing screw installment state partial schematic diagram of the new antenna feeder lightning protection device of this practicality;
Fig. 3 is that the A-A of the new antenna feeder lightning protection device of this practicality is to schematic diagram.
Five, embodiment
As shown in Figure 1, the antenna feeder lightning protection device of present embodiment, comprise shell 1, earthing screw 2, heart yearn 3, place the gas discharge tube 4 in the cavity 6 that shell 1 forms, and connecting as one and lay respectively at first connecting portion 8, second connecting portion 9 at shell 1 two ends with shell 1, earthing screw 2 is arranged in the blind hole 11 on the shell 1.As shown in Figure 2, reliable for earthing screw 2 is connected, its with shell 1 between an elastomeric pad 21 in addition; First connecting portion 8 is provided with installation nut 7 through walls, and installation nut 7 through walls can be installed on first connecting portion 8 or second connecting portion 9.
As shown in Figure 3, be provided with transition connecting portion 10 between second connecting portion 9 and the shell 1, transition connecting portion 10 is provided with an end face 101, and operating personnel used tool holding when end face 101 supplied to install, for example M24, M16 standard spanner prevent that any clamping of operating personnel from causing body seal decline.
As shown in Figure 1, gas discharge tube 4 places between the dielectric 5 and the seal cover 41 on the housing 1 in the housing 1.Seal cover 41 is installed on the housing 1 position corresponding with gas discharge tube 4 removably.
Claims (5)
1. antenna feeder lightning protection device, the interior gas discharge tube (4) of cavity (6) that comprises shell (1), earthing screw (2), heart yearn (3), places shell (1) to form, and connect as one and lay respectively at first, second connecting portion (8,9) at shell (1) two ends with shell (1), it is characterized in that earthing screw (2) is arranged in the blind hole (11) on the shell (1).
2. antenna feeder lightning protection device as claimed in claim 1 is characterized in that, first connecting portion (8) is provided with installation nut through walls (7).
3. antenna feeder lightning protection device as claimed in claim 1 is characterized in that, is provided with transition connecting portion (10) between second connecting portion (9) and the shell (1), and transition connecting portion (10) is provided with an end face (101).
4. antenna feeder lightning protection device as claimed in claim 1 is characterized in that, gas discharge tube (4) places between housing (1) the interior dielectric (5) and the seal cover (41) on the housing (1).
5. antenna feeder lightning protection device as claimed in claim 4 is characterized in that, seal cover (41) is installed in housing (1) removably and goes up and the corresponding position of gas discharge tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828571U CN201594584U (en) | 2009-12-24 | 2009-12-24 | Antenna feeder lightning-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202828571U CN201594584U (en) | 2009-12-24 | 2009-12-24 | Antenna feeder lightning-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201594584U true CN201594584U (en) | 2010-09-29 |
Family
ID=42776652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202828571U Expired - Fee Related CN201594584U (en) | 2009-12-24 | 2009-12-24 | Antenna feeder lightning-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201594584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2009
- 2009-12-24 CN CN2009202828571U patent/CN201594584U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100929 Termination date: 20161224 |