CN202796842U - Multi-step porcelain tube and gas discharge tube manufactured by using multi-step porcelain tube - Google Patents
Multi-step porcelain tube and gas discharge tube manufactured by using multi-step porcelain tube Download PDFInfo
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- CN202796842U CN202796842U CN 201120360365 CN201120360365U CN202796842U CN 202796842 U CN202796842 U CN 202796842U CN 201120360365 CN201120360365 CN 201120360365 CN 201120360365 U CN201120360365 U CN 201120360365U CN 202796842 U CN202796842 U CN 202796842U
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- porcelain tube
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- gas discharge
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Abstract
The utility model relates to a multi-step porcelain tube and a gas discharge tube manufactured by using the multi-step porcelain tube. Steps of the multi-step porcelain tube are provided with first discharge electrodes and second discharge electrodes, wherein an isolation ceramic chip is arranged between the first discharge electrode and the second discharge electrode, the two first discharge electrodes are arranged in a cavity formed by the two second discharge electrodes and a porcelain tube body so as to form three-layer discharge gaps. The multi-step porcelain tube and the gas discharge tube manufactured by using the multi-step porcelain tube provided by the utility model increase the creep distance among gaps effectively because of adoption of the porcelain tube whose internal part is designed to be a multi-step structure, and avoids marginal discharge among the gaps, thereby ensuring that a single layer of the discharge tube is provided with three independent discharge gaps, and enabling arc voltage to be improved exponentially. The arc voltage of a single layer reaches 65V, and the follow current capacity is enhanced greatly.
Description
Technical field
The utility model patent relates to a kind of gas discharge tube that is applied to the power-supply system lightning Protection.
Background technology
The thunderstorm number of times of placing on record at present with 10 years before compare and approximately have more twice, protection people and electric equipment are avoided the voltage surge impact and have been become especially important.In this field, more technical scheme concentrates on the good and continuous service that guarantees electric device except the life that ensures the people.Based on VDE V 0185 tetrameric lightning-arrest district principle, IEC 61643-11 antithetical phrase power distribution network (II level) and terminal (III level), the gas discharge tube of building entrance (I level) has been done the specification restriction.Gas discharge tube is widely used in the over the ground protection of (NPE) of protection equipment, sub-power distribution network and building entrance zero line already.Because the building entrance live wire is very high to the requirement of product afterflow ability to the protection of zero line; up to now; the most diversified traditional type of some models air gap is used in the protection of I level L-N usually; be used for guaranteeing that with one the complicated circuits for triggering of protection level combine sometimes, belong to the spark gap category.Mainly contain following shortcoming:
1, voltage protection level is higher than 3000V;
2, length of life unstable properties, open gap is subject to climatic environment and pollution effect;
There are splash flame or shock wave when 3, working;
4, with peripheral devices or equipment the mounting distance requirement is arranged;
5, need extra triggering circuit, by the servicing unit blow-out.
For overcoming the problem of the deficiency of open air gap in the prior art, the solution of traditional confining gas discharge tube is that a plurality of gas discharge tubes of series connection improve arc voltage, thereby reaches the effect of blocking afterflow.But because traditional design individual layer arc voltage only has (this is to be determined by gas discharge principle) about 18V, the arc voltage that reaches 270V 15 the individual layer gas discharge tubes of need to connecting, no matter be from cost or volume, all can't meet the need of market.For addressing this problem, there are in the market some products to adopt the mode of the built-in multilayer discharging gap of individual layer discharge tube to improve arc voltage, thereby reduce cost and the volume of product.But from actual effect, still can't avoid the problem of sideflash between the gap, arc voltage and afterflow ability increase limited, can not use by spread.
Typical products 1: internal structure 16 discharging gaps are arranged in middle one deck discharge tube, but its arc voltage only has 48V as shown in Figure 3, and from the side discharge under the large current conditions causes the heating of in-built electrical pole piece edge to be melted in together and lost efficacy.
Typical products 2: internal structure as shown in Figure 4, three discharging gaps are arranged in the individual layer discharge tube, but its arc voltage only has 42V, in the middle of under the large current conditions discharge from the middle part in the gap, two other gap is because creep distance not then from electrode edge (side) discharge, causes the heating of in-built electrical pole piece edge to be melted in together inefficacy.
Summary of the invention
One of the purpose of this utility model provides the porcelain tube with a plurality of steps; Another purpose of the present utility model provide a kind of utilize this many steps porcelain tube system have that arc voltage height, afterflow ability are strong, stable performance, volume are little, simple multi-layer gas discharge tube is installed.
The purpose of this utility model is achieved in that a kind of many steps porcelain tube, comprises the porcelain tube body, is provided with a plurality of steps in the porcelain tube body.
A kind of gas discharge tube that utilizes many steps porcelain tube to make, step at many steps porcelain tube is provided with the first sparking electrode and the second sparking electrode, between the first sparking electrode and the second sparking electrode isolation ceramics is set, in the chamber of two the second sparking electrodes and the formation of porcelain tube body, two the first sparking electrodes are set, and then form three layers of discharging gap.
Be filled with inertia and non-inert mixed gas in the chamber.
[0009]Regardless of tolerance and the position of the second sparking electrode and isolation ceramics, the design of a many steps porcelain tube and isolation ceramics center that can occur in sparking electrode that can guarantee to discharge, rather than at the edge of sparking electrode.
Many steps porcelain tube that the utility model provides and the gas discharge tube that utilizes many steps porcelain tube to make, owing to adopted the porcelain tube of a plurality of ledge structures of indoor design, effectively increased creep distance between the gap, avoid marginal discharge between the gap, thereby guarantee in the individual layer discharge tube, to exist three independent discharging gaps, so that arc voltage improves exponentially, the arc voltage of individual layer reaches 65V, and the afterflow ability strengthens greatly.
Adopted the porcelain tube of a plurality of ledge structures of indoor design can guarantee that a plurality of independent discharging gaps are arranged in the individual layer discharge tube, discharged from main gap under the large current conditions.Regardless of tolerance and the position of the second sparking electrode and isolation ceramics, the design of a many steps porcelain tube and isolation ceramics center that can occur in sparking electrode that can guarantee to discharge, rather than at the edge of sparking electrode.
Under the usual condition, discharge tube is applied to power supply L-N protection, and except need bore direct thunder (10/350us waveform modelling) impact, maximum problem was effectively to interdict afterflow, and according to the safety requirement, the 32A sky is opened and can not be beated.This means that the discharge tube solution must have sufficiently high arc voltage (270V), conventional monolayers discharge tube arc voltage only has about 18V, must at least 15 individual layer gas discharge tubes of series connection, and all be not allow from cost and installing space.Technical scheme provided by the invention, under the condition that does not change individual layer gas discharge pipe volume, built-in 3 layers of movable discharging gap, the arc voltage of individual layer discharge tube is improved about 4 times, 4 layers just are enough to solve afterflow and the empty problem of jumping of opening, making discharge tube be applied to power supply LN protection becomes possibility, and reliability, cost and aspect of performance all tool have great advantage.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is many steps of the utility model porcelain tube structural representation.
Fig. 3 and Fig. 4 are the structural representations of prior art.
Embodiment
As shown in Figure 1, a kind of many steps porcelain tube comprises porcelain tube body 1, is provided with a plurality of steps 2 in the porcelain tube body 1.
A kind of multi-layer gas discharge tube, step 2 at many steps porcelain tube is provided with the first sparking electrode 3 and the second sparking electrode 4, isolation ceramics 5 is set between the first sparking electrode 3 and the second sparking electrode 4, in the chamber 6 of two the second sparking electrodes 4 and 1 formation of porcelain tube body, two the first sparking electrodes 3 are set, and then form three layers of discharging gap 7.
Utilize the utility model to do in the protector, the mode by series connection multilayer discharge tube improves arc voltage, thereby cuts off afterflow.Protector comprises n gas discharge tube, welds together under 850 degree conditions by brazing mode, and 3 discharging gaps are arranged in every layer of gas discharge tube, and arc voltage is about 65V, and the total arc voltage of protector is that 65 n doubly is worth.
Claims (2)
1. step porcelain tube more than a kind comprises porcelain tube body (1), it is characterized in that: be provided with a plurality of steps (2) in the porcelain tube body (1).
2. gas discharge tube that utilizes many steps porcelain tube to make, it is characterized in that: the step (2) at many steps porcelain tube is provided with the first sparking electrode (3) and the second sparking electrode (4), isolation ceramics (5) is set between the first sparking electrode (3) and the second sparking electrode (4), in the chamber (6) of two the second sparking electrodes (4) and porcelain tube body (1) formation, two the first sparking electrodes (3) are set, and then form three layers of discharging gap (7).
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120360365 CN202796842U (en) | 2011-09-24 | 2011-09-24 | Multi-step porcelain tube and gas discharge tube manufactured by using multi-step porcelain tube |
| PCT/EP2011/071931 WO2013041150A1 (en) | 2011-09-24 | 2011-12-06 | A multi-step tube of a ceramic material and gas discharge tube made of the same |
| DE112011105645.1T DE112011105645B4 (en) | 2011-09-24 | 2011-12-06 | Multi-layer gas discharge tube |
| US14/346,302 US9762035B2 (en) | 2011-09-24 | 2011-12-06 | Multi-step tube of a ceramic material and gas discharge tube made of the same |
| JP2014531117A JP5813237B2 (en) | 2011-09-24 | 2011-12-06 | Multistage tube made of ceramic material and gas discharge tube manufactured therefrom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120360365 CN202796842U (en) | 2011-09-24 | 2011-09-24 | Multi-step porcelain tube and gas discharge tube manufactured by using multi-step porcelain tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202796842U true CN202796842U (en) | 2013-03-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120360365 Expired - Fee Related CN202796842U (en) | 2011-09-24 | 2011-09-24 | Multi-step porcelain tube and gas discharge tube manufactured by using multi-step porcelain tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202796842U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021769A (en) * | 2011-09-24 | 2013-04-03 | 爱普科斯电子(孝感)有限公司 | Multi-step porcelain tube and gas discharge tube prepared thereby |
| CN103441053A (en) * | 2013-03-22 | 2013-12-11 | 深圳市槟城电子有限公司 | Integrated gas discharge tube and manufacturing method thereof |
-
2011
- 2011-09-24 CN CN 201120360365 patent/CN202796842U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021769A (en) * | 2011-09-24 | 2013-04-03 | 爱普科斯电子(孝感)有限公司 | Multi-step porcelain tube and gas discharge tube prepared thereby |
| CN103021769B (en) * | 2011-09-24 | 2016-09-28 | 爱普科斯电子(孝感)有限公司 | A kind of multi-step porcelain tube and utilize the gas-discharge tube that multi-step porcelain tube makes |
| CN103441053A (en) * | 2013-03-22 | 2013-12-11 | 深圳市槟城电子有限公司 | Integrated gas discharge tube and manufacturing method thereof |
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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: 20130313 Termination date: 20140924 |
|
| EXPY | Termination of patent right or utility model |