CN1835298A - Lightning protection coaxial connector - Google Patents
Lightning protection coaxial connector Download PDFInfo
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- CN1835298A CN1835298A CNA2005100539361A CN200510053936A CN1835298A CN 1835298 A CN1835298 A CN 1835298A CN A2005100539361 A CNA2005100539361 A CN A2005100539361A CN 200510053936 A CN200510053936 A CN 200510053936A CN 1835298 A CN1835298 A CN 1835298A
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- lightning protection
- conductor
- coaxial connector
- inner wire
- gas discharge
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Abstract
A lightning protection subassembly is connected between inner and outer conductor of a connector electrically. The lightning protection subassembly is composed of two or more nonlinear elements, or a nonlinear element of not type of gas discharge tube. Electrical connection between elements can be in parallel, serial or composite connection. Nonlinear elements can be in types of piezoresistor, gas discharge tube, and diode of restraining transient voltage, solid discharge tube or other nonlinear elements. The coaxial connector in lightning protection type possesses function of connection, and function of lightning protection. Features are: good performance of microwave transmission without disadvantage of follow current existed in gas discharge tube, cheap price, and high reliability. The invention can be applicable to transient over voltage protection to diversified wireless communication devices and cable TV systems.
Description
Technical field
The invention belongs to coaxial connector, particularly a kind of existing lightning protection function does not have the coaxial connector of afterflow effect again.
Background technology
Coaxial connector is widely used in systems such as various Wireless Telecom Equipments, cable TV as its input, lead-out terminal, for the safety of systematic protection thunder and lightning, is extensive use of antenna feeder surge protector, and it inserts feeder system by coaxial connector.
The ZL01247642.0 utility model patent has been announced a kind of lightning protection coaxial connector, and the coaxial gas discharge tube as lightning protection device and coaxial connector integrator, has been simplified overall arrangement significantly, reduces fixing link.
But for the communication quality or the increase communication distance that improve Wireless Telecom Equipment, the technical measures that can take are that a low-noise preamplifier is set in the antenna lower end, are commonly called as tower and put, and for example GSM repeater tower is put.When putting to tower that feedback exchanges by feeder line and described lightning protection coaxial connector or during DC power supply, because this lightning protection connector has used the gas discharge tube that the afterflow effect is arranged, under the effect of thunder and lightning, can produce the afterflow phenomenon, make signal by short circuit, system's cisco unity malfunction also can damage equipment when serious.The afterflow effect that gas is put pipe is restricted the use of lightning protection coaxial connector.
Summary of the invention
The present invention is directed to the problem that prior art exists, improved the non-linear element assembly that is installed between the coaxial connector internal and external conductor, make the afterflow effect no longer take place, can be used to have a cutting system of feed requirement and no feed requirement.
Technical scheme of the present invention is: lightning protection coaxial connector comprises: outer conductor, inner wire and be arranged at therebetween dielectric: described inner wire is positioned at the endoporus central authorities of described outer conductor, and is coaxial with outer conductor; It is characterized in that: between described outer conductor and inner wire, be connected with lightning protection component; Described lightning protection component is made up of with series, parallel or the compound ways of connecting of connection in series-parallel two or two above non-linear elements.
Wherein this non-linear element is selected from piezo-resistance, gas discharge tube, transient voltage inhibition diode, solid discharging tube or other non-linear lightning protection components.
Described lightning protection component or one are selected from piezo-resistance, transient voltage and suppress diode, put the non-linear element of one of pipe admittedly.
Particularly, because the piezo-resistance response time is short, only be the 25ns magnitude usually, no afterflow effect adopts simple (one or more) piezo-resistance or other non-linear elements and piezo-resistance series system, can solve the shortcoming that exists in the prior art.
The present invention program is simple in structure, its structure is done corresponding distortion, allow to adapt to existing various coaxial connectors, for example: the connected mode of various coaxial connectors such as N type, L16, TNC, F type, FL10, DIN7/16, L29 and their all types of combinations, the convenient application.Add special-purpose lightning arrester formation antenna feeder signal guard system with common coaxial connector and compare, this product both can reduce fixing link when using, and can reduce cost significantly again.Because it is good that it has the microwave transmission performance, there is not the shortcoming that there is afterflow in gas discharge tube again, low price, the reliability height, the instantaneous overvoltage that can be widely used in various Wireless Telecom Equipments, cable television system is protected.
Description of drawings
Fig. 1 is the structural representation of first embodiment of lightning protection coaxial connector of the present invention.
Fig. 2 is the structural representation of second embodiment of lightning protection coaxial connector of the present invention.
Fig. 3 is the structural representation of the 3rd embodiment of lightning protection coaxial connector of the present invention.
Fig. 4 is the structural representation of the 4th embodiment of lightning protection coaxial connector of the present invention.
Fig. 5 is the structural representation of the 5th embodiment of lightning protection coaxial connector of the present invention.
Embodiment
Describe each embodiment in detail below with reference to accompanying drawing.
Fig. 1 is the structural representation of first embodiment of lightning protection coaxial connector of the present invention, comprise shell 1, inner wire 2 as the outer conductor of connector, dielectric 5,7 between shell and the inner wire, shell 1 is made by copper alloy or aluminium alloy, outer conductor as connector, the total direct-axis of shell is to connecting three parts that are provided with, i.e. first section 11 of the left side, second section 12 and the end cap between them 13 on right side in Fig. 1, they all have endoporus, and different separately external diameters can be arranged.Be screw thread on first section 11 and second sections 12 the external cylindrical surface in this example, do threaded connection for the parts that are connected with it.The outer peripheral face of end cap 13 is installed this coaxial connector for turn, can make for example such hexagonal prism shape of hexagonal (hexagon)nut.If second dielectric 5, the periphery of medium 5 and endoporus conflict the respectively endoporus and the inner wire 2 of second section 12 on shell, in order not allow medium 5 at axial motion, inner wire 2 can be installed dielectric 5 on the technology, be inserted in second section 12 the endoporus of shell 1, the shoulder set against described endoporus the inside done dielectric 5 location to close up with this port of second section of shell again and handled again, make and hold this medium 5 tightly, the location of medium 5 will make inner wire 2 not move axially.The other end of shell; for example establish dielectric 7 in first section 11 the port; this is laminar parts; centre has the cylindric bead of band endoporus; the hole is for the corresponding termination of inserting inner wire 2; the corresponding termination of this inner wire 2 is terminations of illustrated left end now, and to locate the position of this termination, this part damages in the time of in use protecting inner wire 2 not inserted by other cable core that matches.Dielectric outside this section, between inner wire is an air.
In the inner chamber of end cap, the inner peripheral surface that pastes this hole is established the piezo-resistance 3 as one of non-linear element, contact connects an electrode of piezo-resistance, establish gas discharge tube 4 in the piezo-resistance 3 as another non-linear element, make another electrode of piezo-resistance 3 electrically contact an electrode of gas discharge tube 4, and allow another electrode and the inner wire of gas discharge tube 4 be electrically connected.Like this, connector is outer, be connected to the non-linear elements of putting pipe 4 series connection by piezo-resistance 3 and lightning protection gas between the inner wire constitutes lightning protection component, and when meeting with thunderbolt, described lightning protection component punctures conducting, with the thunder and lightning short circuit, and the equipment of protection mounted connector.Gas discharge tube profile in this example can be the shape of cylindrical, cube shaped, disc etc., is placed in the space between end cap and the inner wire, and as above-mentioned, its two electrode correspondingly connects described piezo-resistance and inner wire.
Described piezo-resistance can be one of Zinc-oxide piezoresistor, strontium carbonate piezo-resistance or other known piezo-resistance.
In order to be connected with connected equipment, the side in the connector, inner wire 2 is that a major axis passes described medium 5 endoporus and extends outside connector, as shown in Figure 1.
The characteristic impedance of lightning protection coaxial connector is 75 Ω in the present embodiment.The ratio D/d of the first section 11 diameter of bore D of shell 1 and the outside diameter d of inner wire 2 first conductors 21 is 3.5, second section 12 diameter of bore D ' of shell 1 and ratio D '/d ' of inner wire 2 second conductor diameter d ' are 6.17, because this partially filled dielectric 5, its characteristic impedance still can be adjusted identically with characteristic impedance when filling for air dielectric in the shell 1, so lightning protection coaxial connector of the present invention has good microwave transmission performance.
The lightning protection connector frequency range is DC～1200MHZ in the present embodiment, and loss A≤0.3dB is inserted in standing-wave ratio S≤1.10.
It is F type the moon head that the port link is gone into, and brings out to be N type band extension type inner wire.Certainly, the type that every end uses is arbitrarily, is not limited to the type in this example.
As non-linear element, the transient voltage that also has that can select for use suppresses diode, solid discharging tube or other non-linear element.
In the present embodiment, can cancel gas discharge tube, only a cylindrical piezo-resistance is parallel between the inner and outer conductor.
Fig. 2 is the structural representation of second embodiment of expression lightning protection coaxial connector of the present invention.Difference from Example 1 is: coaxial connector of the same type can be adopted in the two ends 11 of shell 1 and 12, one of all types of such as N type, L16, TNC, F type, FL10, DIN7/16, L29 and they, its outer peripheral face mode of connection also can replace being threaded with interference fit.
Fig. 3 is the structural representation of the 3rd embodiment of expression lightning protection coaxial connector of the present invention.Be with the second embodiment difference: gas discharge tube 4 is a kind of coaxial configurations, the garden cylindricality outer conductor of making by metal garden pipe, the garden sheet of being made by insulating material with coaxial central inner conductor of outer conductor and two sides that the little garden of metal rod is made seals the coaxial gas discharge tube that forms, its central inner conductor is passed the aperture of circle in sealing and is stretched out to two ends, and inside and outside two conductors constitute two electrodes.Connector inner wire 2 is separated into two parts in this example, first conductor 21 and second conductor 22, one end of this conductor 21,22 is respectively equipped with jack, and insert respectively in the described jack at the two ends of electrode in the gas discharge tube, is equivalent to gas discharge tube and is connected in the middle of two parts inner wire 21,22.Two electrodes of ring varistor 3 then are installed between coaxial gas discharge tube 4 and end cap 13 inner peripheral surfaces.Its microwave transmission performance of the lightning protection coaxial connector of present embodiment structure is better than example 2, and maximum operating frequency can reach 3000MHz.
Fig. 4 is the structural representation of the 4th embodiment of expression lightning protection coaxial connector of the present invention.Be with the first or second embodiment difference:
(1) space at gas discharge tube 4 places in Fig. 2, and put gas discharge tube 4 and Transient Suppression Diode 9 (or surge absorbing tube), they are connected with piezo-resistance 3 respectively, therefore should be considered as the also string data structure that this example belongs to non-linear element.Equally, as non-linear element, the transient voltage that also has that can select for use suppresses diode, solid discharging tube or other non-linear element.
(2) lightning protection coaxial connector among it and Fig. 2 relatively has lower protection level.
Fig. 5 is the structural representation of the 5th embodiment of expression lightning protection coaxial connector of the present invention.Be with difference in the first or second example example:
(1) opposite of gas discharge tube 4 in Fig. 2, settled Transient Suppression Diode 9, be connected between the connector inner and outer conductor, it constitutes in parallel with the assembly of piezo-resistance 3 and gas discharge tube 4 formations, therefore this example can be considered be non-linear element and formula structure, the particularly occasion of using gases discharge tube not as previously mentioned.
(2) its advantage is that production cost is lower than example 4, but microwave parameters is a little less than example 4.
More than five layouts that embodiment structurally has nothing in common with each other, protection scope of the present invention is not limited to example, the architectural feature in each example can optionally be used mutually.They also all can constitute different characteristic impedances by the choice structure parameter, to satisfy the different user needs.For example, being equivalent to have between inner and outer conductor among first embodiment ratio of outside diameter d of first conductor 12 of the inside diameter D of 1 first section 11 on that section shell of air dielectric and inner wire is 3.5, corresponding characteristic impedance is 75 Europe, and ratio is 2.3,5.3 o'clock, correspondingly be 50,100 Europe, said, when between the inner wire dielectric being arranged outward,, by adjusting size and dielectric property, can make characteristic impedance with requirement, usually, the D/d value correspondingly has characteristic impedance 20-200 Europe in the 1.4-28 scope.
Can form the lightning protection coaxial connector of different nominal conducting voltage by the various combination of the non-linear element of different puncture voltages, to satisfy the demand of different system degree of protection.
Claims (8)
1, lightning protection coaxial connector comprises: shell, inner wire and be arranged at therebetween dielectric; Described inner wire is positioned at the endoporus central authorities of described shell, and is coaxial with shell; It is characterized in that: be connected with lightning protection component between described outer conductor and the inner wire; Described lightning protection component is made up of with series, parallel or the compound ways of connecting of connection in series-parallel two or two above non-linear elements.
2, lightning protection coaxial connector according to claim 1 is characterized in that: described lightning protection component is made of a non-linear element, and this non-linear element is selected from piezo-resistance, transient voltage and suppresses diode, puts one of pipe admittedly.
3, lightning protection coaxial connector according to claim 1 is characterized in that: described non-linear element is that piezo-resistance, gas discharge tube, transient voltage suppress diode, put pipe or other known nonlinear members admittedly.
4, lightning protection coaxial connector according to claim 3 is characterized in that: described gas discharge tube, its profile are cylindrical or coaxial configuration; The cylinder two ends of described cylindrical gas discharge pipe are two electrodes; The garden cylindricality outer conductor that described coaxial configuration gas discharge tube is made by metal garden pipe, the garden sheet of being made by insulating material with coaxial central inner conductor of outer conductor and two sides that the little garden of metal rod is made seals and forms, its central inner conductor is passed the aperture of circle in sealing and is stretched out to two ends, and inside and outside two conductors constitute two electrodes.
5, according to claim 3 or 4 described lightning protection coaxial connectors, it is characterized in that: described piezo-resistance, its material adopts zinc oxide, strontium carbonate or other known voltage sensitive materials, and its profile is garden sheet, square sheet or cylinder; The inner and outer rings of described annulus cylindricality piezo-resistance is respectively two electrodes.
6, lightning protection coaxial connector according to claim 4, it is characterized in that: the inner wire of described connector is divided into first conductor and second conductor, an one termination has jack, described coaxial configuration gas discharge tube two ends stretch out in intracardiac electrode insert described two jacks respectively as connection.
7, according to any described lightning protection coaxial connector among the claim 1-4, it is characterized in that: described outer conductor by direct-axis to first section that connect to be provided with, end cap, and second section form; Described dielectric comprises first medium and second medium, lay respectively between described inner wire and described first section, the second section inner peripheral surface, wherein the centre bore of first dielectric is for a termination of inserting described inner wire, and another termination of this inner wire penetrates the centre bore of second dielectric.
8, lightning protection coaxial connector according to claim 6 is characterized in that: described outer conductor with direct-axis to first section that connect to be provided with, end cap, and second section composition; Described dielectric comprises first medium and second medium, lay respectively between first section, the second section inner peripheral surface of first conductor, second conductor and described outer conductor of described inner wire, another termination of wherein said first conductor penetrates the centre bore of first dielectric, and another termination of described second conductor penetrates the centre bore of second dielectric.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100539361A CN100377447C (en) | 2005-03-14 | 2005-03-14 | Lightning protection coaxial connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100539361A CN100377447C (en) | 2005-03-14 | 2005-03-14 | Lightning protection coaxial connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1835298A true CN1835298A (en) | 2006-09-20 |
| CN100377447C CN100377447C (en) | 2008-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100539361A Active CN100377447C (en) | 2005-03-14 | 2005-03-14 | Lightning protection coaxial connector |
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| Country | Link |
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| CN (1) | CN100377447C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651275B (en) * | 2009-09-02 | 2011-06-29 | 中航光电科技股份有限公司 | Lightningproof power supply connector |
| CN102742101A (en) * | 2009-10-02 | 2012-10-17 | 特兰斯泰克塔系统公司 | RF coaxial surge protectors with non-linear protection devices |
| CN103986135A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Lightning protection device for video monitoring |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58225586A (en) * | 1982-06-23 | 1983-12-27 | ヒロセ電機株式会社 | Coaxial arrester structure |
| CN2111552U (en) * | 1992-01-16 | 1992-07-29 | 重庆广视电子技术开发公司 | Domestic power supply lightning arrester |
| CN2497449Y (en) * | 2001-09-18 | 2002-06-26 | 王德言 | Anti-lightning coaxial connector |
| CN1146096C (en) * | 2001-12-05 | 2004-04-14 | 沈艺明 | Lightning protection for power supply |
-
2005
- 2005-03-14 CN CNB2005100539361A patent/CN100377447C/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651275B (en) * | 2009-09-02 | 2011-06-29 | 中航光电科技股份有限公司 | Lightningproof power supply connector |
| CN102742101A (en) * | 2009-10-02 | 2012-10-17 | 特兰斯泰克塔系统公司 | RF coaxial surge protectors with non-linear protection devices |
| CN103986135A (en) * | 2014-05-09 | 2014-08-13 | 广西南宁百兰斯科技开发有限公司 | Lightning protection device for video monitoring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100377447C (en) | 2008-03-26 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SICHUAN ZHONGGUANG LIGHTNING PROTECTION TECHNOLOGY Free format text: FORMER OWNER: SICHUAN COMSUNNY ELECTROMAGNETISM PROTECTION CO., LTD. Effective date: 20111012 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610021 CHENGDU, SICHUAN PROVINCE TO: 611731 CHENGDU, SICHUAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20111012 Address after: Tianyu Chengdu road 611731, Sichuan province high tech Zone West Park No. 19 Patentee after: Sichuan Zhongguang Lightning Protection Technologies Co., Ltd. Address before: 5, 610021 floor, No. 2 South Bridge Road, Chengdu, Sichuan Patentee before: Sichuan Comsunny Electromagnetism Protection Co., Ltd. |