CN106058400A - Combiner with lightning protection function - Google Patents
Combiner with lightning protection function Download PDFInfo
- Publication number
- CN106058400A CN106058400A CN201610467720.8A CN201610467720A CN106058400A CN 106058400 A CN106058400 A CN 106058400A CN 201610467720 A CN201610467720 A CN 201610467720A CN 106058400 A CN106058400 A CN 106058400A
- Authority
- CN
- China
- Prior art keywords
- combiner
- copper foil
- fuse
- lightning strike
- varistor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/06—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage using spark-gap arresters
Abstract
The invention relates to a combiner with a lightning protection function. The combiner mainly comprises a combiner main body and a lightning protection unit, wherein the lightning protection unit comprises an internal shielding module and an external shielding module; the internal shielding module is used for pressing copper foil I on the side wall of an internal cavity of the combiner main body and leading out one end for grounding; the external shielding module is used for pressing copper foil II on the outer wall of the main body; the copper foil II is not closed and two ends are connected to a lightning protection circuit; and the lightning protection circuit comprises a thermistor NTC, piezoresistors VR1, VR2 and VR3, fuses FU, a discharger AR, noise filtering inductors L1 and L2, noise filtering resistors R1, R2 and R3 and a capacitor C. By the combiner with the lightning protection function, internal resonance of the combiner can be prevented from being affected by high voltage lightning, so that the combined signal output in extreme weather is free of noise.
Description
Technical field
The present invention relates to electronic information and field of mobile communication, particularly relate to a kind of combiner with anti-lightning strike function.
Background technology
In radio handset communications system, combiner Main Function is to be combined to together by the signal of the multiband of input
Output road is in same set of indoor distributed system.
In engineer applied, need the most defeated to the C net of 800MHZ, the G net of 900MHz or other different frequencies
Go out, use combiner, a set of indoor distributed system can be made to simultaneously work in CDMA frequency range, GSM frequency range or other frequency ranges.
The combiner of prior art is applicable only to indoor, it is impossible to works under outdoor extreme weather, and causes thunderbolt
The function that do not filters of noise.
Summary of the invention
In order to solve above-mentioned technical problem, it is provided that a kind of combiner that can filter the noise that thunderbolt causes, the present invention carries
For following technical scheme:
A kind of combiner with anti-lightning strike function, including combiner main body and anti-lightning strike unit；Described anti-lightning strike unit includes
Internal shield module and exterior shield module；Described internal shield module is to suppress Copper Foil at combiner body interior cavity wall
One, and draw one end ground connection；Described exterior shield module is to suppress Copper Foil two at body outer wall, and described Copper Foil two does not closes, two
Terminate into anti thunder strike circuit.
Interference signal is back to ground by screen layer by primarily serving the purpose of of internal shield, prevents the internal appearance of combiner
Electromagnetic interference problem；Exterior shield can be then the effect that whole main body plays protection introducing lightning surge, does not affects simultaneously
The stability of combiner.
Further, described anti thunder strike circuit, by critesistor NTC, varistor VR1, VR2, VR3, fuse FU, is put
Electrical equipment AR, noise filters inductance L1, L2, and noise filters resistance R1, R2, R3, and electric capacity C composition；The two ends of Copper Foil are referred to as A
End and B end, the most described critesistor NTC accesses between A end and B end after connecting with varistor VR1；Described varistor VR2
After connecting with VR3, the free end of VR2 connects A end by fuse FU, and the free end of VR3 connects B end, VR2 and VR3 shares
End is by discharge tube AR ground connection；Described electric capacity C one end connects the contact of F1 Yu VR2, other end ground connection；Described R1, R2, L1, R3,
L2 is sequentially connected in series, and the two ends of described R1 Yu R2 are parallel to the two ends of electric capacity C.
NTC primarily serves the effect of current limliting, is reduced by the surge current of input, then is discharged by VR1 instantaneous short circuit；Subsequently
The residual voltage that VR2, VR3 scurry into discharge type consumption again；Part residual voltage is introduced into discharge tube AR, and by AR over the ground
(GND) the form consumption discharged；Rear end takes form that resistance connects with inductance it can be avoided that surge current is to lightning prevention circuit
Intraware damages.
Further, the method that Copper Foil one is drawn one end ground connection is medium position one lead-in wire of welding at Copper Foil one,
And lead-in wire is welded through main body reliable ground, described lead-in wire with main body junction.
Further, described varistor VR1, VR2, VR3 are Surge suppression type varistor, and this is owing to thunder and lightning draws
The transient overvoltage risen is uncontrollable, and peak value may be the biggest.
Further, also include that a fuse FU2, described fuse FU2 are connected between R1 and C, it is possible to after playing
The short-circuit protection effect of terminal circuit.
Further, the blowout current of the described fuse FU2 blowout current less than fuse FU1.
The beneficial effects of the present invention is: it can be avoided that high pressure effects of lightning combiner internal resonance so that in extreme sky
Under gas, the conjunction road signal of output is without noise.
Accompanying drawing explanation
Fig. 1, the lightning prevention circuit structural representation of the present invention.
Detailed description of the invention
A kind of combiner with anti-lightning strike function as shown in Figure 1, including combiner main body and anti-lightning strike unit；Described
Anti-lightning strike unit includes internal shield module and exterior shield module；Described internal shield module is in combiner body interior chamber
Body sidewall compacting Copper Foil one, and draw one end ground connection；Described exterior shield module is to suppress Copper Foil two, described copper at body outer wall
Paper tinsel two does not closes, and anti thunder strike circuit is accessed at two ends.
Described anti thunder strike circuit by critesistor NTC, varistor VR1, VR2, VR3, fuse FU, discharger AR, miscellaneous
News filter inductance L1, L2, and noise filters resistance R1, R2, R3, and electric capacity C composition；The two ends of Copper Foil are referred to as side a and b,
The most described critesistor NTC accesses between A end and B end after connecting with varistor VR1；Described varistor VR2 and VR3 connects
After, the free end of VR2 connects A end by fuse FU, and the free end of VR3 connects B end, and the shared end of VR2 and VR3 is by electric discharge
Pipe AR ground connection；Described electric capacity C one end connects the contact of F1 Yu VR2, other end ground connection；Described R1, R2, L1, R3, L2 go here and there successively
Connection, also includes that a fuse FU2, described fuse FU2 are connected between R1 and C, and described R2 is connected to the other end of C, energy
Enough play the short-circuit protection effect of back-end circuit.
The blowout current of the described fuse FU2 blowout current less than fuse FU1.
NTC primarily serves the effect of current limliting, is reduced by the surge current of input, then is discharged by VR1 instantaneous short circuit；Subsequently
The residual voltage that VR2, VR3 scurry into discharge type consumption again；Part residual voltage is introduced into discharge tube AR, and by AR over the ground
(GND) the form consumption discharged；Rear end takes form that resistance connects with inductance it can be avoided that surge current is to lightning prevention circuit
Intraware damages.
The method that Copper Foil one is drawn one end ground connection is medium position one lead-in wire of welding at Copper Foil one, and is worn by lead-in wire
Crossing main body reliable ground, described lead-in wire welds with main body junction.
Described varistor VR1, VR2, VR3 are Surge suppression type varistor, and this is the transient state caused due to thunder and lightning
Overvoltage is uncontrollable, and peak value may be the biggest.
With above-mentioned foundation desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff is complete
Various change and amendment can be carried out in the range of without departing from this invention technological thought.This invention technical
Scope is not limited to the content in description, it is necessary to determine its technical scope according to right.
Claims (6)
1. the combiner with anti-lightning strike function, it is characterised in that: include combiner main body and anti-lightning strike unit；Described anti-
Thunderbolt unit includes internal shield module and exterior shield module；Described internal shield module is at combiner body interior cavity
Sidewall compacting Copper Foil one, and draw one end ground connection；Described exterior shield module is to suppress Copper Foil two, described Copper Foil at body outer wall
Two do not close, and anti thunder strike circuit is accessed at two ends.
A kind of combiner with anti-lightning strike function the most as claimed in claim 1, it is characterised in that: described anti thunder strike circuit is by warm
Quick resistance NTC, varistor VR1, VR2, VR3, fuse FU, discharger AR, noise filters inductance L1, L2, and noise filters electricity
Resistance R1, R2, R3, and electric capacity C composition；The two ends of Copper Foil are referred to as side a and b, the most described critesistor NTC and varistor
Access between A end and B end after VR1 series connection；After described varistor VR2 and VR3 series connection, the free end of VR2 passes through fuse FU
Connecting A end, the free end of VR3 connects B end, and the shared end of VR2 and VR3 is by discharge tube AR ground connection；Described electric capacity C one end connects
The contact of F1 Yu VR2, other end ground connection；Described R1, R2, L1, R3, L2 are sequentially connected in series, and the two ends of described R1 Yu R2 are parallel to electricity
Hold the two ends of C.
A kind of combiner with anti-lightning strike function the most as claimed in claim 1, it is characterised in that: Copper Foil one is drawn a termination
The method on ground is to weld a lead-in wire at the medium position of Copper Foil one, and by lead-in wire through main body reliable ground, described lead-in wire and
Main body junction is welded.
A kind of combiner with anti-lightning strike function the most as claimed in claim 2, it is characterised in that: described varistor VR1,
VR2, VR3 are Surge suppression type varistor.
A kind of combiner with anti-lightning strike function the most as claimed in claim 2, it is characterised in that: also include a fuse
FU2, described fuse FU2 are connected between R1 and C.
A kind of combiner with anti-lightning strike function the most as claimed in claim 5, it is characterised in that: described fuse FU2's is molten
The power-off stream blowout current less than fuse FU1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467720.8A CN106058400A (en) | 2016-06-24 | 2016-06-24 | Combiner with lightning protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610467720.8A CN106058400A (en) | 2016-06-24 | 2016-06-24 | Combiner with lightning protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106058400A true CN106058400A (en) | 2016-10-26 |
Family
ID=57165585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610467720.8A Pending CN106058400A (en) | 2016-06-24 | 2016-06-24 | Combiner with lightning protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106058400A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11266528A (en) * | 1998-03-16 | 1999-09-28 | Sony Corp | Electronic equipment |
| CN202905929U (en) * | 2012-11-14 | 2013-04-24 | 广东通宇通讯股份有限公司 | Four-frequency combiner |
| CN203691258U (en) * | 2013-12-25 | 2014-07-02 | 河南辉煌科技股份有限公司 | Rectification box having lightning protection function |
| CN105207501A (en) * | 2015-10-27 | 2015-12-30 | 丹阳奇烨科技有限公司 | Switching power supply capable of resisting 20 KV lightning strokes |
| CN205029570U (en) * | 2015-10-27 | 2016-02-10 | 丹阳奇烨科技有限公司 | Can anti 20KV switching power supply of thunderbolt |
-
2016
- 2016-06-24 CN CN201610467720.8A patent/CN106058400A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11266528A (en) * | 1998-03-16 | 1999-09-28 | Sony Corp | Electronic equipment |
| CN202905929U (en) * | 2012-11-14 | 2013-04-24 | 广东通宇通讯股份有限公司 | Four-frequency combiner |
| CN203691258U (en) * | 2013-12-25 | 2014-07-02 | 河南辉煌科技股份有限公司 | Rectification box having lightning protection function |
| CN105207501A (en) * | 2015-10-27 | 2015-12-30 | 丹阳奇烨科技有限公司 | Switching power supply capable of resisting 20 KV lightning strokes |
| CN205029570U (en) * | 2015-10-27 | 2016-02-10 | 丹阳奇烨科技有限公司 | Can anti 20KV switching power supply of thunderbolt |
Non-Patent Citations (2)
| Title |
|---|
| YUNZHU AN等: "Experimental research on lightning shielding performance of large scaled UHV transmission line", 《IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION》 * |
| 高金辉等: "光伏发电系统的防雷设计", 《河南师范大学学报（自然科学版）》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |