CN2582231Y - All-enclosed gasket gap discharge protector - Google Patents
All-enclosed gasket gap discharge protector Download PDFInfo
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- CN2582231Y CN2582231Y CN 02244596 CN02244596U CN2582231Y CN 2582231 Y CN2582231 Y CN 2582231Y CN 02244596 CN02244596 CN 02244596 CN 02244596 U CN02244596 U CN 02244596U CN 2582231 Y CN2582231 Y CN 2582231Y
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- gap
- discharge
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Abstract
The utility model relates to a fully sealed gasket gap discharge protector. The utility model is characterized in that an insulating strip is arranged between two metal discharging electrodes, forming a gasket gap 3 for the discharge of gas; the gasket gap 3 is encapsulated by sealing glass or a ceramic tube casing at the utmost side; the outside of each metal discharging electrode is provided with a leadless terminal electrode or a lead terminal electrode; insulating strips with different thickness are used for controlling discharging distance; the voltage of discharge protection is determined according to the discharging distance; the gap 3 is filled with helium gas, neon, argon, deuterium, deuterium, dry air, nitrogen, or the mixture of parts of gases thereof, so that the voltage of discharge protection of the gap 3 can be further regulated, and the width of the discharging gap 3 can be accurately, effectively and slightly controlled. The control of the width of the gap 3 adopts ceramic insulating strips, or mica insulating strips, or organic insulating strips, or inorganic insulating strip, or mixed insulation material insulating strips. The voltage of discharge protection is 50-3000v, the instantaneous discharging current is 100=10000A/0.5 mus, and the static capacitance is equal to and smaller than 1.2pF. The utility model has the advantage of small capacitance, and can be used for the surface mount of printed circuit boards in the field of communication, data transmission, etc.
Description
Technical field: the utility model relates to the gas discharge protector, relates in particular to hermetically sealed buffer gap discharge prevention device, can obtain widely applying at wired, wireless, optical-fibre communications field.
Technical background; The tradition gas discharge is the relatively large structure of electron tube, wherein except that design has sparking electrode, also has trigger electrode, complex structure, and volume is big, is difficult in general electronic circuit and the electric equipment to apply.Other are as piezo-resistance, solid discharging tube protector etc., and are also big because of its additional electrical capacity, are difficult in the higher frequency band field and play a role.In recent years, along with the develop rapidly of electronics and information industry and electronic technology, some famous enterprises in the world, as: Siemens, Mitsubishi etc. has begun to develop the small-sized discharge prevention device that can be used in various electronic circuits.Begun extensive use in many occasions at present.China Patent No. 98225977.8, the horizontal glass envelope of utility model title gas discharge tube, it is mainly used on the display and network interface card of peripheries such as being assemblied in computer, multimedia, and its shortcoming is that volume is big, complex structure.
Summary of the invention:
Goal of the invention: the purpose of this utility model is to overcome big, the baroque shortcoming of horizontal glass envelope gas discharge pipe volume of prior art; provide that a kind of volume is little, in light weight, the additional electrical capacity is little, be applicable to SMD (the Chinese meaning is surface mounted device) the hermetically sealed buffer gap discharge prevention device of surface mounting technology.
Technical characterictic:
Hermetically sealed buffer gap discharge prevention device; it is characterized in that: two metal discharge electrodes 1,4 are arranged; between two metal discharge electrodes 1,4, insulating trip 5 is arranged; make the buffer gap 3 that is formed for gas discharge between two metal discharge electrodes 1,4; at outermost seal glass or ceramic cartridge 2 encapsulation are arranged; in seal glass or ceramic cartridge 2 internal clearances 3, be filled with inert gas or mist, be no lead ends electrode 6 or leaded termination electrode 7 outside the metal discharge electrode 1,4.
Employing 1,4 adds an insulating trip 5 between two sparking electrodes; insulating trip 5 control arcing distances with different-thickness; voltage according to arcing distance decision discharge prevention; simultaneously in the gap 3 fill with various gas (for example: gases such as helium, neon), the further discharge prevention voltage of adjusting play 3.Buffer gap 3 and SMD (the Chinese meaning is surface mounted device) glass or pottery by the utility model control; the hermetically sealed buffer gap discharge prevention device that circle or rectangle encapsulating structure are formed; since adopt the utility model, can very accurate effective micro-width of controlling discharging gap 3.
The insulating trip 5 of the control of gap width described in the utility model can be to adopt pottery, mica, organic and inorganic or mix insulation material as controlling matrix.
Operation principle: the hermetically sealed buffer gap of the utility model discharge prevention device is applicable to the printed circuit board mounted on surface.The utility model is the gap 3 of control gaseous discharge effectively, seals with glass tube then and fills with gas.So that the utility model comparatively still can stably worked in the rugged environment; owing to adopted advanced SMD (the Chinese meaning is surface mounted device) packing forms; the utility model has the various different discharge prevention electrode structures that require; and different size, the SMD of different protection voltages (the Chinese meaning is surface mounted device) hermetically sealed buffer gap discharge prevention device.
The utility model is installed on the printed circuit board; utilize gas-filled gap 3; when occurring in the circuit surpassing circuit permission voltage condition; hermetically sealed buffer gap discharge prevention device cuts out and makes gas-filled gap 3 formation discharge channels discharge; voltage is descended rapidly, reach the purpose of other element in deboost and the protective circuit.Hermetically sealed buffer gap discharge prevention device is opened and is restored to the original state after high voltage disappears.
SMD (the Chinese meaning is surface mounted device) the hermetically sealed buffer gap discharge prevention device packing forms that utilizes the utility model control technology to make adopts standard SMD (the Chinese meaning is surface mounted device) glass or ceramic cartridge encapsulating structure; be suitable for printing board surface mounting technique and ordinary printed circuit board and install, wherein SMD (the Chinese meaning is surface mounted device) exit form can make the product miniaturization and improve the packaging density of product greatly.
The utility model advantage is as follows:
The index of hermetically sealed buffer gap discharge prevention device is as follows: discharge prevention voltage is 50～3000V, and the instantaneous discharge electric current is 100～1000A/0.5 μ s, direct capacitance amount≤1.2pF.Because its capacitance is little, therefore can be widely used in fields such as communication, transfer of data.
1. accurate control gap 3;
2. adopt tubular type SMD (the Chinese meaning is surface mounted device) normal structure, be applicable to the printed circuit board mounted on surface, can effectively improve the product packaging density;
3. compact volume is little;
4. adopt the sealing of inert gas or mist, reuse the reliability height;
5. the electric current tolerance is strong, and maximum can reach 1000A/6000V/0.5 μ s;
6, liner discharging gap 3 is in the seal glass shell, and working interface is protected, and long-term work is more stable;
7, sparking electrode is a refractory metal, and electric current tolerance performance is strong, is difficult for ablating;
Description of drawings:
Fig. 1: the utility model SMD (the Chinese meaning is surface mounted device) hermetically sealed buffer gap discharge prevention device embodiment 1 structure chart, adopt no lead ends electrode 6 forms.
Fig. 2: A-A direction cutaway view among Fig. 1.
Fig. 3: the utility model SMD (the Chinese meaning is surface mounted device) hermetically sealed buffer gap discharge prevention device embodiment 2 structure charts.Adopt leaded termination electrode 7 forms.
Fig. 4: B--B direction cutaway view among Fig. 3.
Embodiment 1: referring to Fig. 1, Fig. 2,
Hermetically sealed buffer gap discharge prevention device is characterized in that:
Two metal discharge electrodes 1,4 are arranged, between two metal discharge electrodes 1,4, insulating trip 5 is arranged, make the buffer gap 3 that is formed for gas discharge between two metal discharge electrodes 1,4, at outermost seal glass or ceramic cartridge 2 encapsulation are arranged, in seal glass or ceramic cartridge 2 internal clearances 3, be filled with inert gas or mist, be no lead ends electrode 6 outside the metal discharge electrode 1,4.
Seal glass or ceramic cartridge 2 are circular encapsulating structure.
Insulating trip 5 is for adopting the insulating trip of pottery, mica, organic and inorganic or mix insulation material, and inert gas that is filled with in seal glass or ceramic cartridge 2 internal clearances 3 or mist are to be selected from helium, neon, argon, deuterium, tritium, dry air, nitrogen or the mist of portion gas wherein.
Embodiment 2: referring to Fig. 3, Fig. 4, be leaded termination electrode 7 outside the metal discharge electrode 1,4.All the other are identical with embodiment 1.
Claims (3)
1, hermetically sealed buffer gap discharge prevention device; it is characterized in that: two metal discharge electrodes (1,4) are arranged; between two metal discharge electrodes (1,4), insulating trip (5) is arranged; make the buffer gap (3) that is formed for gas discharge between two metal discharge electrodes (1,4); at outermost seal glass or ceramic cartridge (2) encapsulation are arranged; be filled with inert gas or mist in seal glass or ceramic cartridge (2) internal clearance (3), metal discharge electrode (1,4) is outer to be no lead ends electrode (6) or leaded termination electrode (7).
2, hermetically sealed buffer gap according to claim 1 discharge prevention device is characterized in that; Seal glass or ceramic cartridge (2) are circle or rectangle encapsulating structure.
3, hermetically sealed buffer gap according to claim 1 and 2 discharge prevention device; it is characterized in that: insulating trip (5) is for adopting the insulating trip of pottery, mica, organic and inorganic or mix insulation material, and inert gas that is filled with in seal glass or ceramic cartridge (2) internal clearance (3) or mist are to be selected from helium, neon, argon, deuterium, tritium, dry air, nitrogen or the mist of portion gas wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244596 CN2582231Y (en) | 2002-11-01 | 2002-11-01 | All-enclosed gasket gap discharge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02244596 CN2582231Y (en) | 2002-11-01 | 2002-11-01 | All-enclosed gasket gap discharge protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2582231Y true CN2582231Y (en) | 2003-10-22 |
Family
ID=33716438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02244596 Expired - Lifetime CN2582231Y (en) | 2002-11-01 | 2002-11-01 | All-enclosed gasket gap discharge protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2582231Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3384546A4 (en) * | 2015-12-04 | 2019-07-24 | IH IP Holdings Limited | Methods and apparatus for triggering exothermic reactions |
| CN112017929A (en) * | 2020-09-02 | 2020-12-01 | 四川天微电子股份有限公司 | High-reliability subminiature glass gas discharge tube |
| US11008666B2 (en) | 2016-06-06 | 2021-05-18 | Ih Ip Holdings Limited | Plasma frequency trigger |
-
2002
- 2002-11-01 CN CN 02244596 patent/CN2582231Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3384546A4 (en) * | 2015-12-04 | 2019-07-24 | IH IP Holdings Limited | Methods and apparatus for triggering exothermic reactions |
| US11008666B2 (en) | 2016-06-06 | 2021-05-18 | Ih Ip Holdings Limited | Plasma frequency trigger |
| CN112017929A (en) * | 2020-09-02 | 2020-12-01 | 四川天微电子股份有限公司 | High-reliability subminiature glass gas discharge tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121101 Granted publication date: 20031022 |