CN1041260C - Air spark gap for determining the maximum voltage at a voltage surge suppressor - Google Patents
Air spark gap for determining the maximum voltage at a voltage surge suppressor Download PDFInfo
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- CN1041260C CN1041260C CN95101747A CN95101747A CN1041260C CN 1041260 C CN1041260 C CN 1041260C CN 95101747 A CN95101747 A CN 95101747A CN 95101747 A CN95101747 A CN 95101747A CN 1041260 C CN1041260 C CN 1041260C
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- spark gap
- contact member
- contact
- air
- air spark
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Abstract
The present invention relates to an air spark gap for determining the maximum voltage of an aged voltage surge suppressor (5), which comprises an electrode device arranged in a capsule filled with inert gas. The surge voltage suppressor is arranged in a surge voltage protective plug; the spark gap is arranged between two contact members (2 and 3 or 4) and is parallel with the suppressor; the first contact member (2) is electrically connected with a contact piece (7); when the plug is in an inserting state, the contact piece is elastically pressed on the surfaces of the second contact members (3, 4). In order to switch off a circuit, electric insulating pieces (8, 9) with given thickness are inserted among the contact piece and the second contact members; a hole is arranged on each insulating piece, and an air gap is formed in the hole.
Description
The present invention relates to a kind of air spark gap, comprise an electrode assembly that is contained in the inert gas filled capsule, gap is installed between two contact members, and is parallel to Surge Suppressors.
Overvoltage and the widely-used Surge Suppressors of overcurrent for preventing that surge voltage from causing in the telecommunication technology field.They generally include a kind of glass of the inert gas that is filled with neon for example or argon one class or electrode assembly in the ceramic envelope of being encapsulated in.The effect of this Surge Suppressors after surpassing the rated point ignition voltage, forms an electric arc that carries high current capacity (about 2.5 kilo-ampere to 20 kilo-amperes) just like a kind of switch by voltage starting.Yet this Surge Suppressors exists the problem of aging by useful life and loadtype decision.Typical problem is that the inert gas in the capsule leaks gradually and replaced by air more and more.Because this problem makes the response voltage of Surge Suppressors bring up to and is several times as much as (about 2,500 to 5,000 volts) standard value.Therefore need provide a kind of extra safeguard measure, to guarantee a certain the highest definite response voltage.It generally is scope at 1,000 to 1,500 volt.
This safeguard measure can realize by disconnecting airborne gap.0.1 can obtain 0.2 to 0.5 kilovolt response voltage to the electrode spacing of 0.5mm.But this additional break spark crack needs the physical dimension of special Surge Suppressors, thereby has departed from standard size; And cost has also increased much.
Know existing a kind of electric wire connecting junction or disconnect group that is used for the telecommunication technology field from German DE3813889C1, the surge voltage protection connector of on this assembly, can pegging graft at least, this connector has a housing that accommodates Surge Suppressors.
Therefore, the purpose of this invention is to provide a kind of Surge Suppressors that has an additive air gap, thereby can satisfy relevant test request and don't change physical dimension, the size that for example refers to the Surge Suppressors shell, its cost also has only the raising of a little, and has prevented the influence of outer bound pair air spark gap wherein basically.
The objective of the invention is following solution, one contact member can be connected with a contact chip conductively, contact chip flexibly is pressed on the surface of second contact member, at least one electrical insulation sheet with given thickness is placed between the contact chip and second contact member for open circuit, a hole is arranged, so that between second contact member and contact chip, form air-gap on the described electrical insulation sheet.
A contact member and another contact member can link together conductively, the part on one of them contact member surface flexibly places on the surface of another contact member, the electrical insulation sheet that a given thickness is arranged between this two contact member makes it to become and opens circuit.A hole is arranged on the described electrical insulation sheet, make and between a contact member and another contact member, form an air-gap, this break spark crack can form at the crawl space between two contact members, and can obtain the gap electrode spacing of high-precision requirement in this simple mode.Be connected with face contact type between second contact member on the one hand by electrical insulation sheet, with the elastic surface way of contact first contact member is positioned on the electrical insulation sheet on the other hand, obtain the break spark crack of a sealing, therefore prevented the influence of outer bound pair puncture voltage basically, air pressure for example, air humidity and pollution etc.
Below by the embodiment in reference to the accompanying drawings the present invention is described in more detail:
Fig. 1 is at the cutaway view of the surge voltage protection connector of initial condition;
The cutaway view of the surge voltage protection connector of Fig. 2 in Fig. 1 of the state of insertion;
The end view (a) of Fig. 3 a-line contact member and the vertical view (b) of a part;
The end view (a) of Fig. 4 b-line contact member and the vertical view (b) of a part.
The surge voltage protection connector comprises a shell of being made up of plastics collet 1 and crown cap 2.Lid 2 can be connected conductively with a unshowned afflux earthing device when the surge voltage protection connector is inserted on electric wire connecting junction or the turn-off switch component, so it constitutes earth terminal.Two plug-in type tongue pieces 3 and 4 stretch out from shell, and when described plug-in type tongue piece inserted state at the surge voltage protection connector, a-line or the b-line with communication cable joined respectively.Each Surge Suppressors 5 is connected between plug-in type tongue piece 3 and the lid 2 respectively, and between plug-in type tongue piece 4 and the lid 2, tongue piece 3 or 4 is being connected a molten ball 6 of conduction respectively with between the corresponding Surge Suppressors 5 in addition.
If produced an overvoltage in the telecommunication system, described overvoltage has surpassed the response voltage of at least one Surge Suppressors 5 between the lid 2 that constitutes earth terminal and at least one plug-in type tongue piece 3 or 4, this inert gas filled Surge Suppressors 5 will be lighted spark so, and overvoltage is just passed through the Low ESR junction of this Surge Suppressors by guiding system like this.If the spark of Surge Suppressors 5 is constant, the heat fusing that corresponding molten ball will be produced, so corresponding tongue piece 3 or 4 is owing to point to the elastic reactions at top and will contact with top cover 2, Surge Suppressors 5 is just by short circuit like this, and prevented issuable hot breaking-up.
Two haptic element formula contact chips 7 are housed on the top cover 2.When the surge voltage protection connector is the insertion state (Fig. 2), they are pressed on corresponding plug-in type tongue piece 3 or 4 by elasticity respectively.When non-insertion state (Fig. 1), contact chip 7 rises respectively, throws off with corresponding plug-in type tongue piece 3 or 4.When the state of insertion, there is a relatively large contact area respectively in plug-in type tongue piece 3 or 4 between its corresponding contact chip 7.
When inserting the surge voltage protection connector, gluingly respectively in the zone that formation face contacts between contact chip 7 and relevant plug-in type tongue piece 3 or 4 go into a slice electrical insulation sheet 8 or 9.This electrical insulation sheet 8 or 9 minimum thickness are 100 μ m.Described electrical insulation sheet 8 or 9 has prevented that respectively plug-in type tongue piece 3 or 4 contact chips 7 corresponding with it from directly contacting.Two electrical insulation sheet 8 and 9 respectively have a hole 10 or 11, so plug-in type tongue piece 3 or 4 is only separated by the air-gap of electrical insulation sheet 8 or 9 thickness by one respectively at contact chip 7 corresponding with it herein.Its corresponding respectively contact chip 7 of plug-in type tongue piece 3 or 4 or the puncture voltage of covering between 2 (the system earth devices) can be adjusted with the mode of the thickness of suitable selection electrical insulation sheet 8 or 9.When adjusting different puncture voltages, be that the plain mode of 3 μ m just can reach adjustment highly accurately with allowing electrical insulation sheet maximum ga(u)ge tolerance.
With the method for suitable selecting hole 10 and 11 (size and shape), can make between plug-in type tongue piece 3 or 4 contact chips 7 corresponding and form inhomogeneous highfield with it, so just can obtain the puncture behavior of similar flat board/most advanced and sophisticated arrangement of features.This just can reduce actual breakdown strength, thereby, for example, under a given puncture voltage, can use bigger electrode spacing or thicker electrical insulation sheet.Therefore, even also can adopt bigger electrode spacing under lower puncture voltage, this just can get rid of the problem of electrode weldering knot largely.
Claims (10)
1. the air spark gap of ceiling voltage in the definite Surge Suppressors, comprise an electrode assembly in inert gas filled capsule, air spark gap is installed between two contact members, and be parallel to Surge Suppressors, it is characterized in that, first contact member (2) can be connected with a contact chip (7) conductively, contact chip (7) flexibly is pressed in second contact member (3,4) on the surface portion, at least one has the electrical insulation sheet (8 of given thickness for open circuit, 9) be placed on the contact chip (7) and second contact member (3,4) between, a hole (10,11) is arranged on the described electrical insulation sheet, so that between second contact member (3,4) and contact chip (7), form air-gap.
2. air spark gap as claimed in claim 1; it is characterized in that described Surge Suppressors (5) is installed in the surge voltage protection connector, when the surge voltage protection connector is in the insertion state; contact chip (7) is pressed on second contact member (3,4).
3. an air spark gap as claimed in claim 2 is characterized in that, described surge voltage connector can be plugged on electric wire connecting junction or the turn-off switch component that is used for telecom technology.
4. an air spark gap as claimed in claim 3 is characterized in that, described first contact member (2) is connected in the afflux earthing device, and second contact member (3,4) is connected in a or b-line.
5. one kind as the described air spark gap of one of claim 2 to 4, it is characterized in that described second contact member (3,4) is made the form of plug-in type tongue piece.
6. an air spark gap as claimed in claim 1 is characterized in that, described contact chip (7) flexibly is pressed in it on second contact member (3,4) by first contact member (2).
7. an air spark gap as claimed in claim 1 is characterized in that, the minimum thickness of described electrical insulation sheet (8,9) is 100 μ m.
8. an air spark gap as claimed in claim 1 is characterized in that, described electrical insulation sheet (8,9) is to stick with glue on second contact member (3,4).
9. an air spark gap as claimed in claim 2 is characterized in that, it is mounted in the shell (1,2) of surge voltage protection connector.
10. an air spark gap as claimed in claim 2 is characterized in that, the size and/or the shape in the hole (10,11) on the described electrical insulation sheet (8,9) make can form inhomogeneous highfield in the air-gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101747A CN1041260C (en) | 1995-01-28 | 1995-01-28 | Air spark gap for determining the maximum voltage at a voltage surge suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN95101747A CN1041260C (en) | 1995-01-28 | 1995-01-28 | Air spark gap for determining the maximum voltage at a voltage surge suppressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1113356A CN1113356A (en) | 1995-12-13 |
| CN1041260C true CN1041260C (en) | 1998-12-16 |
Family
ID=5074079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95101747A Expired - Fee Related CN1041260C (en) | 1995-01-28 | 1995-01-28 | Air spark gap for determining the maximum voltage at a voltage surge suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1041260C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2855662B1 (en) * | 2003-06-02 | 2005-07-15 | I T H P P | ECLATOR, AND IN PARTICULAR A HIGH-VOLTAGE ECLATOR |
| DE102006028959A1 (en) * | 2006-06-23 | 2008-01-31 | Dehn + Söhne Gmbh + Co. Kg | Plug-in surge arrester with one or more overvoltage protection elements |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4303959A (en) * | 1977-10-18 | 1981-12-01 | Tii Industries, Inc. | Fail safe surge arrester systems |
| US4313019A (en) * | 1976-12-06 | 1982-01-26 | Nippon Oil Co., Ltd. | Method for producing low molecular weight polymer |
| DE3813889C1 (en) * | 1988-04-20 | 1989-04-06 | Krone Ag, 1000 Berlin, De | |
| US4912592A (en) * | 1987-05-01 | 1990-03-27 | Cooper (Uk) Limited | Gas-filled surge arrestor |
| US5050034A (en) * | 1990-01-22 | 1991-09-17 | Endress U. Hauser Gmbh U. Co. | Pressure sensor and method of manufacturing same |
-
1995
- 1995-01-28 CN CN95101747A patent/CN1041260C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313019A (en) * | 1976-12-06 | 1982-01-26 | Nippon Oil Co., Ltd. | Method for producing low molecular weight polymer |
| US4303959A (en) * | 1977-10-18 | 1981-12-01 | Tii Industries, Inc. | Fail safe surge arrester systems |
| US4912592A (en) * | 1987-05-01 | 1990-03-27 | Cooper (Uk) Limited | Gas-filled surge arrestor |
| DE3813889C1 (en) * | 1988-04-20 | 1989-04-06 | Krone Ag, 1000 Berlin, De | |
| US5050034A (en) * | 1990-01-22 | 1991-09-17 | Endress U. Hauser Gmbh U. Co. | Pressure sensor and method of manufacturing same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1113356A (en) | 1995-12-13 |
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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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |