CN102646564A - Gas discharge tube - Google Patents
Gas discharge tube Download PDFInfo
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- CN102646564A CN102646564A CN2011100391285A CN201110039128A CN102646564A CN 102646564 A CN102646564 A CN 102646564A CN 2011100391285 A CN2011100391285 A CN 2011100391285A CN 201110039128 A CN201110039128 A CN 201110039128A CN 102646564 A CN102646564 A CN 102646564A
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- discharge tube
- gas discharge
- protruding end
- insulation shell
- conductive electrodes
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Abstract
The invention discloses a gas discharge tube which comprises an insulation shell and two conductive electrodes, wherein the insulation shell and the two conductive electrodes form a closed space; and the projecting ends of the two conductive electrodes of the gas discharge tube are arranged in a staggered mode. The projecting ends of the two conductive electrodes of the gas discharge tube are arranged in a staggered mode, thereby increasing the discharge emission surface area of the gas discharge tube and providing a larger closed inflation space; the projecting ends of the conductive electrodes can provide point discharge and perform a triggering function, and the triggering mode is more flexible; and the closed space formed by the conductive electrodes and the insulation shell contains hydrogen and/or inert gas, thereby lowering the pulse shock voltage on the premise of increasing the through flow of the gas discharge tube and ensuring the small size of the product.
Description
Technical field
The present invention relates to a kind of gas discharge tube, specially refer to a kind of Gas Discharge Tubes for Overvoltage Protection.
Background technology
Gas discharge tube is to form confined space by the conductive electrode soldering of insulation shell through scolder and two ends, is filled with inert gas in this confined space, is attached with the triggering conductive strips at the inwall of insulation shell.The end face of the protruding end of two conductive electrodes is relative, forms main discharge gap, the discharge electric field direction of main discharge gap and insulation shell axially parallel.This structure needs the face area of bigger electrode protruding end, could increase the discharge surface of emission, improves the through-current capacity of discharge tube; And be unfavorable for reducing pulse shock voltage; If will guarantee certain inner inflatable space, then must increase the discharge tube volume, be unfavorable for the microminiaturization of product.
Summary of the invention
Main purpose of the present invention under the situation that does not increase the gas discharge pipe volume, has bigger discharge capacity for a kind of gas discharge tube is provided when obtaining to hang down pulse shock voltage.
The present invention proposes a kind of gas discharge tube, comprises insulation shell and two conductive electrodes, and said insulation shell and two conductive electrodes form confined space, and the protruding end of two conductive electrodes of said gas discharge tube is staggered.
Preferably, the main discharge gap discharge electric field direction that forms between the protruding end of said two conductive electrodes is axial vertical with insulation shell.
Preferably, comprise hydrogen and/or inert gas in the said confined space.
Preferably, the protruding end of said conductive electrode is one or more.
Preferably, the side of the protruding end of said conductive electrode and/or end face are irregularly shaped.
Preferably, the protruding end of said two conductive electrodes is for being arranged in parallel.
Preferably, said gas discharge tube also comprises the triggering conductive strips that are attached to the insulation shell inwall, and one or two in said triggering conductive strips and said two conductive electrodes forms the triggering gap.
The cross-lapping department of the side that preferably, said two conductive electrodes are relative is arranged with first cathode emission material.
Preferably, the inwall of said insulation shell is provided with second cathode emission material.
Preferably, the protruding end of said two conductive electrodes is the cathode emission material that is attached to the insulation shell inwall.
A kind of gas discharge tube provided by the invention; The protruding end of two conductive electrodes through making gas discharge tube is staggered; Increased the discharge surface of emission area of gas discharge tube, bigger airtight plenum space is provided simultaneously, and the discharge electric field that forms between the protruding end of two conductive electrodes is vertical with the direction that triggers electric field; Can reach the effect of the through-current capacity that increases gas discharge tube, guarantee the small size of product simultaneously.Trigger the gap owing to exist; Trigger the gap point discharge can be provided; The protruding end end face of conductive electrode also can play the effect of triggering; Make triggering mode more flexible, and contain the mist of hydrogen and inert gas formation in conductive electrode and the formed confined space of insulation shell, this can reach the effect that reduces pulse shock voltage.
Description of drawings
Fig. 1 is the structural representation of gas discharge tube one embodiment of the present invention;
Fig. 2 is first structural representation of gas discharge tube one embodiment of the present invention;
Fig. 3 is second structural representation of gas discharge tube one embodiment of the present invention;
Fig. 4 is the 3rd structural representation of gas discharge tube one embodiment of the present invention;
Fig. 5 is the 4th structural representation of gas discharge tube one embodiment of the present invention;
Fig. 6 is the 5th structural representation of gas discharge tube one embodiment of the present invention.
The realization of the object of the invention, functional characteristics and advantage will combine embodiment, further specify with reference to accompanying drawing.
Embodiment
Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
With reference to Fig. 1; Gas discharge tube one embodiment of the present invention is proposed; Comprise insulation shell 1, have the conductive electrode 2A and the 2B of protruding end, the cross-lapping department of relative side is arranged with first cathode emission material 5 on conductive electrode 2A and 2B; Insulation shell 1 welds together respectively through scolder 3 with conductive electrode 2A and 2B, forms confined space.
The protruding end of conductive electrode 2A and 2B can be and is parallel to each other; Be staggered in the confined space of gas discharge tube; The protruding end can be perpendicular shape; The cross-lapping department of the side that is provided with first cathode emission material 5 that both are relative divides and forms discharge surface of emission S00, between the protruding end of conductive electrode 2A and 2B owing to have off normal apart from forming main discharge gap G01.The protruding end end face of conductive electrode 2A and the bottom end face of conductive electrode 2B; And the bottom end face of the protruding end end face of conductive electrode 2B and conductive electrode 2A forms triggering clearance G 02 respectively, the bottom end face of conductive electrode 2B and the top formation triggering clearance G 03 that triggers conductive strips 4.
Because the protruding end length of conductive electrode 2A and 2B is longer; Therefore the area of the discharge surface of emission S00 of the cross-lapping department branch of its relative side that is provided with first cathode emission material 5 formation is also bigger, conductive electrode 2A and 2B that gas discharge tube adopted, and the thickness of its protruding end can be provided with as required; Be processed as thin thin slice as far as possible; Because the protruding end is thinner, after conductive electrode 2A and 2B and insulation shell 1 welding, inner airtight plenum space is relatively large; When expansive force sharply increases in gas, can be the gas expansion bigger space is provided.And, trigger clearance G 02 and point discharge can be provided, so the protruding end end face of conductive electrode 2A and 2B also can play the effect of triggering with G03, make triggering mode more flexible, can reach the effect of reduction pulse shock voltage.
In the present embodiment; A kind of gas discharge tube provided by the invention; Two conductive electrode 2A through making gas discharge tube and the interlaced arrangement in protruding end of 2B can increase the area of the discharge surface of emission S00 of gas discharge tube, and the protruding end of conductive electrode 2A and 2B is thinner; Bigger airtight plenum space is provided simultaneously
Can reach the effect of the through-current capacity that increases gas discharge tube, guarantee the small size of product simultaneously.
In an embodiment of the present invention, be filled with hydrogen and/or inert gas in the formed confined space of two conductive electrode 2A and 2B and insulation shell 1 welding back.
In the present embodiment; In two conductive electrode 2A and the formed confined space of 2B and insulation shell 1 welding back, can fill hydrogen or inert gas; Also can fill the mist of hydrogen and one or more inert gases, to reach the effect that reduces pulse shock voltage.
In an embodiment of the present invention; The position of the protruding end of conductive electrode 2A and 2B can be provided with as required; Can be shown in Fig. 2, the protruding end of conductive electrode 2A and 2B contacts with adjacent insulation housing 1, can all or part ofly be close to insulation shell 1 inwall.The protruding end of conductive electrode 2A and 2B is parallel to each other and is staggered; The juxtaposition of the side that both are relative partly is respectively equipped with first cathode emission material 5; And formation discharge surface of emission S00; Form main discharge gap G01 between the protruding end of conductive electrode 2A and 2B; The protruding end end face of conductive electrode 2A and the bottom end face of conductive electrode 2B, and the bottom end face of the protruding end end face of conductive electrode 2B and conductive electrode 2A forms triggering clearance G 02 respectively, the bottom end face of conductive electrode 2B and the top formation triggering clearance G 03 that triggers conductive strips 4.Said structure can so that insulation shell played a supporting role in the protruding end of conductive electrode 2A and 2B.
With reference to Fig. 3 and Fig. 4, in one embodiment, the protruding end quantity of conductive electrode 2A and 2B can be set to one or more as required, and interlaced arrangement.
As shown in Figure 3; Conductive electrode 2B has two protruding ends, and contacts with adjacent insulation housing 1 respectively, and conductive electrode 2A has a protruding end; Be positioned in the middle of two protruding ends of conductive electrode 2B; Be parallel to each other and be staggered between the protruding end of conductive electrode 2A and 2B, the cross-lapping department of the side that is provided with first cathode emission material 5 that it is relative divides formation discharge surface of emission S00, forms main discharge gap G01 between the protruding end of conductive electrode 2A and 2B; The protruding end end face of conductive electrode 2A and the bottom end face of conductive electrode 2B, and the bottom end face of two the protruding end end faces of conductive electrode 2B and conductive electrode 2A forms respectively and triggers clearance G 02.
As shown in Figure 4; Conductive electrode 2A and 2B have two protruding ends respectively; Can be parallel to each other; Be staggered in the confined space of gas discharge tube, the cross-lapping department of the side that is provided with first cathode emission material 5 that it is relative divides formation discharge surface of emission S00, constitutes three main discharge gap G01 between the protruding end of conductive electrode 2A and 2B; Two the protruding end end faces of conductive electrode 2A and the bottom end face of conductive electrode 2B, and the bottom end face of two the protruding end end faces of conductive electrode 2B and conductive electrode 2A forms respectively and triggers clearance G 02.
In the present embodiment, the protruding end quantity of conductive electrode 2A and 2B can be set flexibly as required.
With reference to Fig. 5, in the above-described embodiments, the end face of the protruding end of conductive electrode 2A and 2B and/or side can be set to irregularly shaped.
The end face of the conductive electrode 2A of gas discharge tube of the present invention and the protruding end of 2B and/or side can be set to irregularly shaped according to actual needs; The cross-lapping department of the side that it is relative is arranged with first cathode emission material 5, to increase the area of discharge surface of emission S00.
In the present embodiment, the surface of the protruding end of conductive electrode 2A and 2B is set to irregularly shaped, adopts this irregularly shapedly, can increase the area of discharge surface of emission S00, more helps to increase the through-current capacity of gas discharge tube.
With reference to Fig. 6, in an embodiment of the present invention, on the inwall of insulation shell 1, be provided with second cathode emission material 6.
In the present embodiment; On the inwall of insulation shell 1, be provided with second cathode emission material 6; The cross-lapping department of the side that be provided with first cathode emission material 5 relative with the protruding end of conductive electrode 2A and 2B divides the discharge surface of emission S00 that forms to exist simultaneously; Help the emission of the first electronics of gas discharge more, further increase the through-current capacity of gas discharge tube.
In the foregoing description, the triggering conductive strips 4 that are attached to insulation shell 1 inwall can be provided with one or many as required, and preferable situation is to be arranged on the position far away apart from the protruding end of conductive electrode 2A and 2B with triggering conductive strips 4.
In the above-described embodiments, the protruding end of conductive electrode 2A and 2B also can be the cathode emission material that is attached to insulation shell 1 inwall, and is staggered, and forms discharging gap.In the case, this cathode emission material plays the effect same with the protruding end.
With reference to Fig. 1; The another embodiment of gas discharge tube of the present invention has been proposed; In the above-described embodiments, main discharge gap G01 discharge electric field direction is axial vertical with insulation shell 1, and promptly main discharge gap G01 discharge electric field direction is perpendicular to the triggering direction of an electric field that triggers clearance G 02 and G03.
Formed main discharge gap G01 discharge electric field direction and insulation shell 1 is axial vertical between the protruding end of conductive electrode 2A and 2B, and promptly main discharge gap G01 discharge electric field is vertical with the direction that triggers clearance G 02 and the formed respectively triggering electric field of G03.
In the present embodiment,, make main discharge gap G01 discharge electric field also vertical with the direction of triggering electric field because main discharge gap G01 discharge electric field direction and insulation shell 1 is axial vertical; Under this orthogonal electric field action; Expansive force in the big moment that is produced during gas discharge just can be towards different directions, thereby have avoided gas when expanding; Discharge tube is stressed excessive in same direction, makes the longer service life of gas discharge tube.
The above is merely the preferred embodiments of the present invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (10)
1. a gas discharge tube comprises insulation shell and two conductive electrodes, and said insulation shell and two conductive electrodes form confined space, it is characterized in that the protruding end of two conductive electrodes of said gas discharge tube is staggered.
2. gas discharge tube as claimed in claim 1 is characterized in that, the main discharge gap discharge electric field direction that forms between the protruding end of said two conductive electrodes is axial vertical with insulation shell.
3. according to claim 1 or claim 2 gas discharge tube is characterized in that, comprises hydrogen and/or inert gas in the said confined space.
4. according to claim 1 or claim 2 gas discharge tube is characterized in that the protruding end of said conductive electrode is one or more.
5. according to claim 1 or claim 2 gas discharge tube is characterized in that the side of the protruding end of said conductive electrode and/or end face are irregularly shaped.
6. according to claim 1 or claim 2 gas discharge tube is characterized in that the protruding end of said two conductive electrodes is parallel.
7. according to claim 1 or claim 2 gas discharge tube is characterized in that, also comprises the triggering conductive strips that are attached to the insulation shell inwall, and one or two in said triggering conductive strips and said two conductive electrodes forms and triggers the gap.
8. according to claim 1 or claim 2 gas discharge tube is characterized in that the cross-lapping department of the side that said two conductive electrodes are relative is arranged with first cathode emission material.
9. according to claim 1 or claim 2 gas discharge tube is characterized in that the inwall of said insulation shell is provided with second cathode emission material.
10. according to claim 1 or claim 2 gas discharge tube is characterized in that the protruding end of said two conductive electrodes is the cathode emission material that is attached to the insulation shell inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100391285A CN102646564A (en) | 2011-02-16 | 2011-02-16 | Gas discharge tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100391285A CN102646564A (en) | 2011-02-16 | 2011-02-16 | Gas discharge tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102646564A true CN102646564A (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100391285A Pending CN102646564A (en) | 2011-02-16 | 2011-02-16 | Gas discharge tube |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762079A (en) * | 2003-04-10 | 2006-04-19 | 冈谷电机产业株式会社 | Discharge tube and surge absorbing device |
| CN201054461Y (en) * | 2007-06-25 | 2008-04-30 | 镇江市电子管厂 | Thin type high power gas discharge tube |
| JP3151069U (en) * | 2009-03-27 | 2009-06-04 | 岡谷電機産業株式会社 | Discharge tube |
| CN201515147U (en) * | 2009-07-29 | 2010-06-23 | 深圳市槟城电子有限公司 | Low-junction capacitance ceramic gas discharge tube |
| CN201570781U (en) * | 2009-11-27 | 2010-09-01 | 何鹉 | Coaxial multiple-stack large through-current gas discharge tube |
| CN101882757A (en) * | 2009-05-06 | 2010-11-10 | 深圳市槟城电子有限公司 | High-intensity arc voltage gas electrical discharge tube |
-
2011
- 2011-02-16 CN CN2011100391285A patent/CN102646564A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1762079A (en) * | 2003-04-10 | 2006-04-19 | 冈谷电机产业株式会社 | Discharge tube and surge absorbing device |
| CN201054461Y (en) * | 2007-06-25 | 2008-04-30 | 镇江市电子管厂 | Thin type high power gas discharge tube |
| JP3151069U (en) * | 2009-03-27 | 2009-06-04 | 岡谷電機産業株式会社 | Discharge tube |
| CN101882757A (en) * | 2009-05-06 | 2010-11-10 | 深圳市槟城电子有限公司 | High-intensity arc voltage gas electrical discharge tube |
| CN201515147U (en) * | 2009-07-29 | 2010-06-23 | 深圳市槟城电子有限公司 | Low-junction capacitance ceramic gas discharge tube |
| CN201570781U (en) * | 2009-11-27 | 2010-09-01 | 何鹉 | Coaxial multiple-stack large through-current gas discharge tube |
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Application publication date: 20120822 |