CN203415536U - Gas diskharge tube - Google Patents
Gas diskharge tube Download PDFInfo
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- CN203415536U CN203415536U CN201320370448.3U CN201320370448U CN203415536U CN 203415536 U CN203415536 U CN 203415536U CN 201320370448 U CN201320370448 U CN 201320370448U CN 203415536 U CN203415536 U CN 203415536U
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- discharge tube
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Abstract
The utility model diskloses a gas diskharge tube. The gas diskharge tube comprises a porcelain tube, electrode poles, a first electrode and a second electrode both located inside the porcelain tube. The first electrode and the second electrode have the same structure and the same dimension. Working gas is filled inside the porcelain tube. The electrode poles are fixedly connected on the two ends of the porcelain tube and make the porcelain tube sealed. The first electrode and the second electrode are fixed on the electrode poles and symmetrically arranged along the central point of the porcelain tube. The gas diskharge tube has not distinguished an anode and a cathode. The breakdown voltage of the diskharge tube can fluctuate within a very small range no matter how the gas diskharge tube is arranged. Great circuit protection effect consistency is thus achieved. When the gas diskharge tube is installed, the anode and the cathode are not required to be distinguished. Relatively convenient installation is realized. Furthermore, when a gas breakdown diskharge is generated between the two electrodes of the gas diskharge tube, the diskharge has no polarity effects.
Description
Technical field
The utility model relates to electric prospection element field, relates in particular to a kind of gas discharge tube.
Background technology
Gas discharge tube is the ionic device that utilizes gas discharge principle to make, and it generally adopts ceramic enclosed package, and the inner metal electrode by two or several band gaps, fills with inert gas and form.When being added to the voltage of two electrode tips and reaching the gas breakdown making in gas discharge tube, gas discharge tube just starts electric discharge, and becomes Low ESR by high impedance, makes the voltage at electrode two ends be no more than puncture voltage.In existing gas discharge tube, generally there is dividing of anodal negative pole, if anodal negative pole wrong can cause breakdown potential to be pressed with larger fluctuation, thereby affect the protection effect of circuit, therefore, when mounted, should be noted that anodal negative pole position.In addition, are generally the response time of existing gas discharge tube and recovery time Millisecond, cannot meet the high requirement of some special dimension to action sensitivity.
Therefore, be desirable to provide a kind of easy for installation, the gas discharge tube that response time and recovery time are shorter.
Summary of the invention
For this reason, the utility model provides a kind of new gas discharge tube of at least a portion that at least can address the above problem.
The utility model provides a kind of gas discharge tube, the first electrode and the second electrode that comprise porcelain tube, electrode holding pole and be positioned at porcelain tube, structure and the size of described the first electrode and the second electrode are all identical, in porcelain tube, be filled with working gas, wherein, described electrode holding pole is fixedly connected on described porcelain tube two ends described porcelain tube is sealed; Described the first electrode and the second electrode are fixed on described electrode holding pole and along the central point setting of described porcelain tube.
Alternatively, according to gas discharge tube of the present utility model, described working gas is the gaseous mixture of Krypton and helium.
Alternatively, according to gas discharge tube of the present utility model, described gas discharge tube further comprises contact conductor, and described contact conductor is drawn respectively from described the first electrode and the second electrode.
Alternatively, according to gas discharge tube of the present utility model, described porcelain tube adopts 95 porcelain to make.
Alternatively, gas discharge tube described in the utility model, described the first electrode and the second electrode all adopt tungsten thorium alloy to make.
Alternatively, according to gas discharge tube of the present utility model, the distance between described the first electrode and the second electrode is less than 0.5mm.
Alternatively, according to gas discharge tube of the present utility model, described electrode holding pole adopts teleoseal to make.
Alternatively, according to gas discharge tube of the present utility model, described porcelain tube and described electrode holding pole are fixed together by soldering.
Alternatively, according to gas discharge tube of the present utility model, described electrode holding pole and porcelain tube coaxially arrange.
Gas discharge tube described in the utility model does not have the differentiation of positive pole, negative pole, in any case install, discharge tube puncture voltage all fluctuates in very little scope, good to the protection same effect of circuit, therefore when installing gas discharge tube also without distinguishing positive pole and negative pole, install more for convenience; And, when producing gas breakdown electric discharge between gas discharge tube two electrodes, the nonpolarity effect of discharging.
Accompanying drawing explanation
By reading below detailed description of the preferred embodiment, various other advantage and benefits will become cheer and bright for those of ordinary skills.Accompanying drawing is only for the object of preferred implementation is shown, and do not think restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of gas discharge tube described in the utility model; And
Fig. 2 is the schematic diagram of gas discharge tube described in the utility model in the lightning protection application of communication apparatus; And
Fig. 3 is the schematic diagram of the application of gas discharge tube described in the utility model in comprehensive surge protection system.
Embodiment
Below in conjunction with accompanying drawing and concrete execution mode, the utility model will be further described.
The utility model provides a kind of gas discharge tube, the first electrode and the second electrode that comprise porcelain tube, electrode holding pole and be positioned at porcelain tube, structure and the size of described the first electrode and the second electrode are all identical, in porcelain tube, be filled with working gas, wherein, described electrode holding pole is fixedly connected on described porcelain tube two ends described porcelain tube is sealed; Described the first electrode and the second electrode are fixed on described electrode holding pole and along the central point setting of described porcelain tube.
Fig. 1 illustrates the structural representation of gas discharge tube described in the utility model.As shown in Figure 1, described gas discharge tube comprises porcelain tube 1, electrode holding pole 2 and the first electrode 3 and the second electrode 4 that are positioned at described porcelain tube 1.The two ends that described electrode holding pole 2 is fixedly connected on described porcelain tube 1 seal porcelain tube 1, in described porcelain tube 1, are filled with working gas.The structure of described the first electrode 3 and the second electrode 4 is identical with size, both are fixed on respectively on described electrode holding pole 2, and the central point along described porcelain tube 1 distributes, two electrodes are equal to the distance of two ends of porcelain tube, and two electrodes also equate with the distance of porcelain tube sidewall.
When gas discharge tube both end voltage is not high, discharge tube is high impedance, and in gas discharge tube both end voltage is brought up to pipe after gas breakdown voltage, in discharge tube, between two electrodes, produce gas breakdown electric discharge, and transfer rapidly arc discharge to from glow discharge, discharge tube is utmost point Low ESR situation, and tube voltage drop is down to tens volts.When both end voltage, be down to after arc discharge maintains below voltage, electric discharge stops, and discharge tube returns to again high impedance situation.Because two electrodes of gas discharge tube do not have the differentiation of positive pole, negative pole, in the time of in gas discharge tube is installed to application circuit, also without the problem of considering both positive and negative polarity, easy for installation; And during gas discharge, electric discharge is even, nonpolarity effect.
In gas discharge tube described in the utility model, adopt the gaseous mixture of Krypton and helium as working gas, and working gas air pressure higher (being generally 110-130kpa) in pipe, make gas discharge tube there is extremely short response time and (response time :≤100 μ s, recovery time :≤100 μ s) recovery time.Compared to response time and the recovery time of gas discharge tube Millisecond in prior art, gas discharge tube response time of the present utility model and recovery time are shorter, can meet the demand in the field that action sensitivity is had relatively high expectations, such as military field, further expanded the application of gas discharge tube.Be understandable that, except Krypton and helium, in described working gas, be also added with other a small amount of gases.
In gas discharge tube of the present utility model, from described the first electrode 3 and the second electrode 4, lead to respectively contact conductor 5, to facilitate in gas discharge tube place in circuit.In an embodiment of the present utility model, what described contact conductor 5 adopted is FY3-3 light gauge wire.
In gas discharge tube described in the utility model, described the first electrode 3 and the second electrode 4 all adopt tungsten thorium alloy to make.The tungsten alloy that tungsten thorium alloy is comprised of tungsten and thorium anhydride, thorium anhydride Heat stability is good, can greatly improve elevated temperature strength, recrystallization temperature and the high temperature creep property of tungsten alloy, thorium also further reduces the electron work functon of tungsten, strengthens the thermionic emission ability of alloy.Therefore, tungsten thorium alloy has excellent properties high temperature resistant, anti-sputter.Tungsten thorium alloy discharge quantity after high-temperature process is minimum, and the electrode that adopts tungsten thorium alloy to make has working life and the long feature (life-span >=5000 time) of storage life, and then has extended the useful life of gas discharge tube.In gas discharge tube of the present utility model, according to the pressure size of working gas, the distance between described the first electrode 3 and the second electrode 4 is arranged to be less than 0.5mm.
In gas discharge tube of the present utility model, described porcelain tube 1 adopts 95 porcelain to make, and described electrode holding pole 2 adopts teleoseal to make, and described electrode holding pole 2 coaxially arranges with porcelain tube 1.Described porcelain tube 1 and described electrode holding pole 2 mode by soldering is fixed together.When carrying out soldering, adopt yellow gold as solder.Because electrode holding pole has adopted teleoseal, make, when itself and porcelain tube are carried out to soldering, sealing-in is respond well, has guaranteed the sealing of gas discharge tube.In the utility model, described the first electrode 3 and the second electrode 4 also can be fixed on described electrode holding pole 2 by soldering, and soldering solder used is palladium-silver copper alloy.
Gas discharge tube insulation resistance described in the utility model is large, anti-vibration ability is strong, good environmental adaptability; and there is the response time and the recovery time that are exceedingly fast; can be used for the first order or front two-stage in the multi-stage protection circuit of precision circuit, work release Lightning Transient overcurrent and over-voltage effect.Typical case's application of gas discharge tube described in the utility model is described with two examples below.
Embodiment 1
Gas discharge tube described in the utility model is in the lightning protection application of all kinds of communication apparatus such as telephone set/facsimile machine.Because the natural phenomenas such as thunder and lightning cause overvoltage (or overcurrent), being called surge voltage (or surge current), is that a kind of transition is disturbed.The trouble free service of surge voltage meeting serious harm electronics.Utilize gas discharge tube can weaken and eliminate overvoltage, overcurrent, prevent surge damnification, the safe operation of protection electronics.Fig. 2 shows gas discharge tube described in the utility model at the schematic diagram of communication apparatus lightning protection application.As shown in Figure 2, in the circuit of the described communication apparatus 7 of described gas discharge tube 6 access, when the surge of thunder and lightning initiation arrives, the voltage at gas discharge tube 6 two ends can improve, when voltage increases to the puncture voltage of gas discharge tube 6, gas discharge tube 6 is converted into conduction state by original state of insulation, and the voltage after conducting between 6 liang of electrodes of gas discharge tube maintains puts the residual voltage level that electric arc channel determines, thereby plays release Lightning Transient overcurrent and over-voltage effect.Adopt gas discharge tube for the lightning protection of communication apparatus, there is low current amount, high power supply, leakage current, the advantages such as high reliability of continuing.
The application of gas discharge tube described in the utility model in comprehensive surge protection system.The required surge protection system of automatic control system is generally comprised of secondary or three grades, utilizes the feature of various surge suppression devices, can realize reliably protecting.Fig. 3 shows the schematic diagram of the application of gas discharge tube described in the utility model in comprehensive surge protection system.As shown in Figure 3, gas discharge tube 6 is placed on line input, as one-level device of surge protector, bears large surge current.Second class protection device adopts piezo-resistance 8, response quickly in microsecond (μ s) level time range.For high-sensitive electronic circuit, can adopt three-level protective device transient state to suppress diode 9, in psec (ps) level time range, surge voltage is produced to response.When the surge of thunder and lightning initiation arrives, first transient state suppresses diode 9 starts, and transient overvoltage accurately can be controlled to certain level; If surge current is large, piezo-resistance 8 startings, and certain surge current of releasing; The voltage at gas discharge tube 6 two ends can increase, until promote the electric discharge of prime gas discharge tube, large current drain is arrived ground.
It should be noted, above-described embodiment describes the utility model rather than the utility model is limited, and those skilled in the art can design alternative embodiment in the situation that do not depart from the scope of claims.In the claims, any reference symbol between bracket should be configured to limitations on claims.Word " comprises " not to be got rid of existence and is not listed as element or step in the claims.The use of word first, second and C grade does not represent any order, can be title by these word explanations.
Claims (9)
1. a gas discharge tube, it is characterized in that: the first electrode (3) and the second electrode (4) that comprise porcelain tube (1), electrode holding pole (2) and be positioned at porcelain tube (1), structure and the size of described the first electrode (3) and the second electrode (4) are all identical, porcelain tube is filled with working gas in (1), wherein
Described electrode holding pole (2) is fixedly connected on described porcelain tube (1) two ends described porcelain tube (1) is sealed;
It is upper and along the central point setting of described porcelain tube (1) that described the first electrode (3) and the second electrode (4) are fixed on described electrode holding pole (2).
2. gas discharge tube according to claim 1, is characterized in that: described working gas is the gaseous mixture of Krypton and helium.
3. gas discharge tube according to claim 1, is characterized in that: described gas discharge tube further comprises contact conductor (5), and described contact conductor (5) is drawn respectively from described the first electrode (3) and the second electrode (4).
4. gas discharge tube according to claim 1, is characterized in that: described porcelain tube (1) adopts 95 porcelain to make.
5. gas discharge tube according to claim 1, is characterized in that: described the first electrode (3) and the second electrode (4) all adopt tungsten thorium alloy to make.
6. gas discharge tube according to claim 1, is characterized in that: the distance between described the first electrode (3) and the second electrode (4) is less than 0.5mm.
7. gas discharge tube according to claim 1, is characterized in that: described electrode holding pole (2) adopts teleoseal to make.
8. according to the gas discharge tube described in any one in claim 1-7, it is characterized in that: described porcelain tube (1) and described electrode holding pole (2) are fixed together by soldering.
9. according to the gas discharge tube described in any one in claim 1-7, it is characterized in that: described electrode holding pole (2) coaxially arranges with porcelain tube (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370448.3U CN203415536U (en) | 2013-06-25 | 2013-06-25 | Gas diskharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370448.3U CN203415536U (en) | 2013-06-25 | 2013-06-25 | Gas diskharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415536U true CN203415536U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320370448.3U Expired - Fee Related CN203415536U (en) | 2013-06-25 | 2013-06-25 | Gas diskharge tube |
Country Status (1)
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| CN (1) | CN203415536U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863287A (en) * | 2017-10-31 | 2018-03-30 | 余雪强 | Ceramic xenon discharge lamp |
| CN107887252A (en) * | 2017-10-31 | 2018-04-06 | 余雪强 | Ceramic xenon discharge lamp filled with lanthanide halides |
| CN108631155A (en) * | 2017-03-16 | 2018-10-09 | 深圳科安达电子科技股份有限公司 | A kind of safety-type discharge tube |
| CN109690892A (en) * | 2016-08-17 | 2019-04-26 | 通用电气公司 | Gap with the excitation of triple point electron emission |
| CN111146052A (en) * | 2019-12-26 | 2020-05-12 | 四川天微电子有限责任公司 | High-holding overvoltage protection gas discharge tube |
-
2013
- 2013-06-25 CN CN201320370448.3U patent/CN203415536U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109690892A (en) * | 2016-08-17 | 2019-04-26 | 通用电气公司 | Gap with the excitation of triple point electron emission |
| CN109690892B (en) * | 2016-08-17 | 2021-05-18 | 通用电气公司 | Spark gap with triple point electron emission excitation |
| CN108631155A (en) * | 2017-03-16 | 2018-10-09 | 深圳科安达电子科技股份有限公司 | A kind of safety-type discharge tube |
| CN107863287A (en) * | 2017-10-31 | 2018-03-30 | 余雪强 | Ceramic xenon discharge lamp |
| CN107887252A (en) * | 2017-10-31 | 2018-04-06 | 余雪强 | Ceramic xenon discharge lamp filled with lanthanide halides |
| CN111146052A (en) * | 2019-12-26 | 2020-05-12 | 四川天微电子有限责任公司 | High-holding overvoltage protection gas discharge tube |
| CN111146052B (en) * | 2019-12-26 | 2022-08-12 | 四川天微电子股份有限公司 | High-holding overvoltage protection gas discharge tube |
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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 |
Granted publication date: 20140129 Termination date: 20180625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |