CN202488130U - Discharge gap type multi-layer surge protector - Google Patents
Discharge gap type multi-layer surge protector Download PDFInfo
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- CN202488130U CN202488130U CN2012200439405U CN201220043940U CN202488130U CN 202488130 U CN202488130 U CN 202488130U CN 2012200439405 U CN2012200439405 U CN 2012200439405U CN 201220043940 U CN201220043940 U CN 201220043940U CN 202488130 U CN202488130 U CN 202488130U
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Abstract
The utility model relates to a discharge gap type multi-layer surge protector which is applied to overvoltage protection of an alternating current or direct current circuit. The discharge gap type multi-layer surge protector comprises n discharge gaps and (n-1) trigger circuits, wherein n is an integer of more than or equal to 2; the n discharge gaps are connected in series to form an overvoltage bleeder circuit; two ends of the overvoltage bleeder circuit are respectively provided with a connecting terminal used for being connected with a protected alternating current or direct current circuit; one ends of (n-1) trigger circuits are respectively connected with a corresponding conductive member between the discharge gaps, and the other ends of (n-1) trigger circuits are connected together and are connected with the outer end part of a first discharge gap F1; each trigger circuit has the same structure and is an RC (Remote Control) circuit formed by connecting a capacitor and a resistor in parallel.
Description
Technical field
The utility model belongs to and suppresses superpotential surge protector; Be particularly related to a kind of multilayer discharging gap type surge protector; Be mainly used in the inhibition lightning overvoltage, make all kinds of communication base stations, transformer station, power electronic equipment exempt from the destruction of direct lightning strike or lightning induction.
Background technology
Granted publication comprises that the π shape that N+1 discharge gap, the electric capacity that a N capacitance is identical constitute connects capacitance group number for the patent of CN 100530868C discloses a kind of high efficient laminated graphic discharge gap device, and each discharge gap is connected in series, first discharge gap F
1Be connected the last discharge gap F with live wire
N+1Ground connection, π shape connect an end of each electric capacity in the capacitance group and are connected other end ground connection with electric-conductor between two discharge gaps.This device is a kind of multilayer discharging gap type surge protector, and each circuits for triggering all only is made up of capacitor.The thunderbolt lightning continues average 3～4 times to be impacted; The time interval of impacting is 10～250ms, and the typical case is 50ms blanking time, under the overvoltage of thunder and lightning is impacted; Capacitor in its circuits for triggering can be charged into electric charge in trigger process; And the circuits for triggering that only are made up of capacitor because electric charge does not have good leakage path, can not fully be released in the blanking time of lightning impulse; So exist residual charge to influence the triggering next time of surge protector, cause the surge protector ignition voltage to raise and job insecurity.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art; A kind of improved multilayer discharging gap type surge protector is provided; So that the electric charge that is charged in the circuits for triggering was fully released in the blanking time of lightning impulse, improves the stability of surge protector work.
The technical scheme of the utility model: the circuits for triggering to existing multilayer discharging gap type surge protector improve, and said circuits for triggering are designed to resistance-capacitance circuit.
The said multilayer discharging gap of the utility model type surge protector; Comprise n discharge gap and n-1 bar circuits for triggering, said n is >=2 integer, and n discharge gap is connected in series and constitutes the overvoltage leadage circuit; Said overvoltage leadage circuit two ends are provided with splicing ear; Be used to connect protected interchange or DC circuit, an end of each the bar circuits for triggering in the n-1 bar circuits for triggering respectively with corresponding discharge gap between electric-conductor connect, their other end links together and is connected with first discharge gap F1 outer end; The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection.
In order to guarantee in the circuits for triggering that the electric charge that is charged into fully releases in the blanking time of lightning impulse, 3 times or 4 times or 5 times or 6 times of the time constant of said RC circuit should be less than the blanking time between twice thunderbolt.
The said multilayer discharging gap of the utility model type surge protector; In its RC circuit, the capacitance of capacitor is 100PF～100nF, preferred 500PF～3nF; Withstand voltage is 100V～10kV; The resistance value of resistor is 10k Ω～200M Ω, preferred 500k Ω～20M Ω, and power is 1/8W～10W.
In order to carry out overcurrent protection, the said multilayer discharging gap of the utility model type surge protector is provided with current protector, and an end of said current protector is connected first discharge gap F1 outer end, and its other end is connected the common port of each bar circuits for triggering.
In order to show the operating state of said multilayer discharging gap type surge protector; Be provided with indicating circuit; One end of said indicating circuit is connected the last discharge gap Fn outer end; Its other end is connected the common port of each bar circuits for triggering, or an end of indicating circuit is connected the last discharge gap Fn outer end, and its other end is connected first discharge gap F1 outer end.
The said multilayer discharging gap of the utility model type surge protector, its discharge gap is Open architecture or sealed construction.The discharge gap of said Open architecture is become by the insulation ring-type shim pack of placing between n+1 electrode slice and adjacent two electrode slices; Electrode slice is square or circle or waist shape or ellipse, and other shape that is suitable for using, and the form fit of insulation annular shim and electrode slice is similarly square loop or annulus or waist shape ring or vesica piscis, and other annular that is suitable for using.The discharge gap of said sealed construction is made up of n+1 electrode slice and n airtight container, and said electrode slice is positioned at airtight container and is fixed by airtight container.
Form the electrode slice of discharge gap and processed by graphite, copper-tungsten or other high temperature resistant conducing composite materials, the spacing between the electrode slice is 0.1 millimeter～0.6 millimeter.The insulation annular shim is made with polytetrafluoroethylene, mica or other high-temperature insulation materials.
The said multilayer discharging gap of the utility model type surge protector operation principle:
When thunder and lightning came, if surge voltage surpasses the puncture voltage of putting the gap, the breakdown successively backs, gap of putting at different levels formed path, and impedance is very little, thereby the surge overvoltage energy of releasing fast, suppresses overvoltage; At different levels put the gap breakdown successively in; With the instantaneous chargings in capacitor two ends of putting the circuits for triggering of gap assembly at different levels; Charging back capacitance voltage raises rapidly, and the electric charge that said capacitor is charged in trigger process is fully released in the blanking time of lightning impulse by two ends parallel resistor device, can not exist residual charge to impact triggering once more; Thereby when the overvoltage of thunder and lightning generation arrives once more, light a fire once more in the auxiliary discharge crack that circuits for triggering can be stable.
The said multilayer discharging gap of the utility model type surge protector is applicable to the overvoltage protection of interchange or DC circuit.
The utlity model has following beneficial effect:
1, because the circuits for triggering in the said multilayer discharging gap of the utility model type surge protector is the RC circuit that capacitor and resistor parallel connection constitute; Thereby the electric charge that capacitor is charged in trigger process can fully be released in the blanking time of lightning impulse by resistor; Can not exist residual charge to impact to triggering once more; When the overvoltage of thunder and lightning generation arrived once more, the surge protector ignition voltage was low, started discharge stability; Can better be applicable to the lightning overvoltage environment, each electron-like, electric equipment are played a protective role.
2, the circuits for triggering of the said multilayer discharging gap of the utility model type surge protector are simple in structure, are convenient to make, and compare with existing multilayer discharging gap type surge protector, have higher cost performance.
3, condenser capacity and resistor value preferred in the circuits for triggering can guarantee that the electric charge that capacitor is charged in the trigger process can fully be released by resistor in the blanking time of lightning impulse.
4, discharge gap is Open architecture or sealed construction, can be used for the electronics in the varying environment, the lightning protection of electric equipment, strengthens the adaptability of multilayer discharging gap type surge protector.
5, owing to be provided with current protector, if the circuits for triggering electric current is excessive, temperature is too high, the fuse of current protector then can be fused, and can realize overcurrent protection.
6, owing to be provided with indicating circuit, can show the operating state of the said multilayer discharging gap of the utility model type surge protector, be convenient in time pinpoint the problems.
Description of drawings
Fig. 1 is a kind of basic circuit structure schematic diagram of the said multilayer discharging gap of the utility model type surge protector;
Fig. 2 is another basic circuit structure schematic diagram of the said multilayer discharging gap of the utility model type surge protector, is provided with current protector;
Fig. 3 is the circuit structure schematic diagram of the multilayer discharging gap type surge protector among the embodiment 1;
Fig. 4 is the circuit structure schematic diagram of the multilayer discharging gap type surge protector among the embodiment 2;
Fig. 5 is the circuit structure schematic diagram of the multilayer discharging gap type surge protector among the embodiment 3;
Fig. 6 is the circuit structure schematic diagram of the multilayer discharging gap type surge protector among the embodiment 4.
Embodiment
The structure of the said multilayer discharging gap of the utility model type surge protector is described further through embodiment below in conjunction with accompanying drawing.
The basic circuit structure of the said multilayer discharging gap of the utility model type surge protector is as shown in Figure 1.In Fig. 1, F1～Fn is a n discharge gap, and C1～Cn-1 is the capacitor in the n-1 bar circuits for triggering, and R1～Rn-1 is the resistor in the n-1 bar circuits for triggering, and said n is >=2 integer.Each discharge gap has two electrodes, and n discharging gap is connected in series and constitutes the overvoltage leadage circuit of surge protector.Said overvoltage leadage circuit two ends are provided with splicing ear, and the terminal that connects first discharge gap F1 outer end is defined as the A terminal, and the terminal that connects the last discharge gap Fn outer end is defined as the B terminal.A terminal and B terminal are parallel to by between two circuits in the protective circuit.The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection; One end of each bar circuits for triggering respectively with corresponding discharge gap between electric-conductor connect, their other end links together and is connected with first discharge gap F1 outer end.
Circuit structure schematic diagram shown in Figure 2 has increased current protector FU1 on the basis of Fig. 1; The end of said current protector FU1 is connected first discharge gap F1 outer end that is connected with the A terminal; Its other end is connected the common port of each bar circuits for triggering, to realize overcurrent protection.
In the present embodiment; Multilayer discharging gap type surge protector is applied to the overvoltage protection of alternating current circuit; The circuit structure of surge protector is as shown in Figure 3, is made up of 11 graphic discharge gap F1～F11,10 circuits for triggering, current protector FU1 and indicating circuits.Each graphic discharge gap is connected in series, and wherein, the terminal that connects first graphic discharge gap F1 outer end is connected with live wire, and the terminal that connects the last graphic discharge gap F11 outer end is connected with zero line or ground wire.The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection; One end of the 1st circuits for triggering that C1, R1 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F1, F2, is connected with live wire behind its another termination current protector FU1; One end of the 2nd circuits for triggering that C2, R2 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F2, F3, is connected with live wire behind its another termination current protector FU1; , by that analogy, an end of the 10th circuits for triggering that C10, R10 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F10, F11, is connected (see figure 3) with live wire behind its another termination current protector FU1.Indicating circuit is made up of current protector FU2, current-limiting inductance L1, current-limiting resistance R11, protection diode VD1, protection diode VD2, light-emitting diode HL1, bleeder resistance R12 and decompression capacitor C11; Current protector FU2, current-limiting inductance L1, current-limiting resistance R11, protection diode VD1, light-emitting diode HL1 and decompression capacitor C11 are connected in series; Protection diode VD2 is connected in parallel on the two ends of protection diode VD1 and light-emitting diode HL1, and bleeder resistance R12 and decompression capacitor C11 are connected in parallel and constitute the RC circuit; In the said indicating circuit, the end of current protector FU2 is connected discharge gap F11 outer end, and the end of decompression capacitor C11 is connected the common port (see figure 3) of each bar circuits for triggering.
In above-mentioned each bar circuits for triggering, the capacitance of its capacitor is 620PF, withstand voltage is 3kV, and the resistance value of its resistor is 3.0M Ω, power is 1/4W.
In the present embodiment, graphic discharge gap is an Open architecture, is become by the insulation ring-type shim pack of placing between 12 graphite electrode sheets and adjacent two electrode slices; Said graphite electrode sheet is circular; Its thickness is 1.8 millimeters, and the spacing between the two graphite electrode sheets is 0.25 millimeter, and the insulation annular shim that is placed between the graphite electrode sheet of each graphic discharge gap is an annular; Make with polytetrafluoroethylene, its thickness is 0.25 millimeter.Electronic devices and components in the foregoing circuit are assembled in the box body.
In the present embodiment, if the circuits for triggering short circuit, current protector FU1 will fuse, and light-emitting diode HL1 goes out, and there is fault in the indication surge protector.
In the present embodiment, multilayer discharging gap type surge protector is applied to the overvoltage protection of alternating current circuit, and the circuit structure of surge protector is as shown in Figure 4, is made up of 11 discharge gap F1～F11,10 circuits for triggering and current protector FU1.Said discharge gap F1～F11 is the gas discharge tube of enclosed construction, and each discharge gap is connected in series, and wherein, the terminal that connects first discharge gap F1 outer end is connected with live wire, and the terminal that connects the last discharge gap F11 outer end is connected with zero line or ground wire.The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection; One end of the 1st circuits for triggering that C1, R1 parallel connection constitute connects with the electric-conductor of the discharge gap F1 that is connected the gas discharge tube formation, F2, is connected with live wire behind its another termination current protector FU1; One end of the 2nd circuits for triggering that C2, R2 parallel connection constitute connects with the electric-conductor of the discharge gap F2 that is connected the gas discharge tube formation, F3, is connected with live wire behind its another termination current protector FU1; , by that analogy, an end of the 10th circuits for triggering that C10, R10 parallel connection constitute connects with the electric-conductor of the discharge gap F10 that is connected the gas discharge tube formation, F11, is connected (see figure 4) with live wire behind its another termination current protector FU1.
In above-mentioned each bar circuits for triggering, the capacitance of its capacitor is 680PF, withstand voltage is 3kV, and the resistance value of its resistor is 2.7M Ω, power is 1/4W.
In the present embodiment, electronic devices and components are assembled in the box body.If the circuits for triggering short circuit, current protector FU1 will fuse, and play the effect of overcurrent protection.
In the present embodiment, multilayer discharging gap type surge protector is applied to the overvoltage protection of alternating current circuit, and the circuit structure of surge protector is as shown in Figure 5, is made up of 8 graphic discharge gap F1～F8,7 circuits for triggering, current protector FU1 and indicating circuits.Each graphic discharge gap is connected in series, and wherein, the terminal that connects first graphic discharge gap F1 outer end is connected with live wire, and the terminal that connects the last graphic discharge gap F8 outer end is connected with zero line or ground wire.The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection; One end of the 1st circuits for triggering that C1, R1 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F1, F2, is connected with live wire behind its another termination current protector FU1; One end of the 2nd circuits for triggering that C2, R2 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F2, F3, is connected with live wire behind its another termination current protector FU1; , by that analogy, an end of the 7th circuits for triggering that C7, R7 parallel connection constitute connects with the electric-conductor that is connected graphic discharge gap F7, F8, is connected (see figure 5) with live wire behind its another termination current protector FU1.Indicating circuit is made up of current protector FU2, current-limiting inductance L1, current-limiting inductance L2, current-limiting resistance R11, current-limiting resistance R13, protection diode VD1, protection diode VD2, light-emitting diode HL1, bleeder resistance R12 and decompression capacitor C11; The end of current protector FU2 is connected discharge gap F8 outer end; The other end and current-limiting inductance L1, current-limiting resistance R11, decompression capacitor C11, current-limiting resistance R13, current-limiting inductance L2, light-emitting diode HL1, protection diode VD1 are connected discharge gap F1 outer end after being connected in series; Tie point between decompression capacitor C11 and the current-limiting resistance R13 is connected the common port of each bar circuits for triggering; Bleeder resistance R12 and decompression capacitor C11 are connected in parallel and constitute the RC circuit, and protection diode VD2 is connected in parallel on the two ends (see figure 5) of protection diode VD1 and light-emitting diode HL1.
In above-mentioned each bar circuits for triggering, the capacitance of its capacitor is 750PF, withstand voltage is 3kV, and the resistance value of its resistor is 2.4M Ω, power is 1/4W.
In the present embodiment, graphic discharge gap is an Open architecture, is become by the insulation ring-type shim pack of placing between 9 graphite electrode sheets and adjacent two electrode slices; Said graphite electrode sheet is circular; Its thickness is 2.0 millimeters, and the spacing between the two graphite electrode sheets is 0.40 millimeter, and the insulation annular shim that is placed between the graphite electrode sheet of each graphic discharge gap is an annular; Make with polytetrafluoroethylene, its thickness is 0.40 millimeter.Electronic devices and components in the foregoing circuit are assembled in the box body.
In the present embodiment, if the circuits for triggering short circuit, current protector FU1 will fuse, and light-emitting diode HL1 is bright, and there is fault in the indication surge protector.
Embodiment 4
In the present embodiment, multilayer discharging gap type surge protector is applied to the overvoltage protection of DC circuit, and the circuit structure of surge protector is as shown in Figure 6, is made up of 8 copper-tungsten discharge gap F1～F8,7 circuits for triggering and current protector FU1.Each copper-tungsten discharge gap is connected in series, and wherein, the terminal that connects first copper-tungsten discharge gap F1 outer end is connected with V+, and the terminal that connects the last copper-tungsten discharge gap F8 outer end is connected with V-.The structure of each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection; One end of the 1st circuits for triggering that C1, R1 parallel connection constitute connects with the electric-conductor that is connected copper-tungsten discharge gap F1, F2, is connected with V+ behind its another termination current protector FU1; One end of the 2nd circuits for triggering that C2, R2 parallel connection constitute connects with the electric-conductor that is connected copper-tungsten discharge gap F2, F3, is connected with V+ behind its another termination current protector FU1; ..., by that analogy, an end of the 7th circuits for triggering that C7, R7 parallel connection constitute connects with the electric-conductor that is connected copper-tungsten discharge gap F7, F8, is connected (see figure 6) with V+ behind its another termination current protector FU1.
In above-mentioned each bar circuits for triggering, the capacitance of its capacitor is 1.1nF, withstand voltage is 3kV, and the resistance value of its resistor is 1.8M Ω, power is 1/4W.
In the present embodiment, the copper-tungsten discharge gap is an Open architecture, is become by the insulation ring-type shim pack of placing between 9 copper-tungsten electrode slices and adjacent two electrode slices; Said copper-tungsten electrode slice is a square; Its thickness is 2.2 millimeters, and the spacing between the two copper-tungsten electrode slices is 0.50 millimeter, and the insulation annular shim that is placed between the copper-tungsten electrode slice of each copper-tungsten discharge gap is a square loop; Use ceramic, its thickness is 0.50 millimeter.Electronic devices and components in the foregoing circuit are assembled in the box body.
In the present embodiment, if the circuits for triggering short circuit, current protector FU1 will fuse, and play the effect of overcurrent protection.
Claims (9)
1. multilayer discharging gap type surge protector; Comprise n discharge gap and n-1 bar circuits for triggering, said n is >=2 integer, and n discharge gap is connected in series and constitutes the overvoltage leadage circuit; Said overvoltage leadage circuit two ends are provided with splicing ear; Be used to connect protected interchange or DC circuit, an end of each the bar circuits for triggering in the n-1 bar circuits for triggering respectively with corresponding discharge gap between electric-conductor connect, their other end links together and is connected with first discharge gap (F1) outer end; The structure that it is characterized in that each bar circuits for triggering is identical, all the RC circuit for being made up of capacitor and resistor parallel connection.
2. according to the said multilayer discharging gap of claim 1 type surge protector, it is characterized in that 3 times or 4 times or 5 times or 6 times of time constant of said RC circuit should be less than the blanking time between twice thunderbolt.
3. according to the said multilayer discharging gap of claim 2 type surge protector, it is characterized in that in the said RC circuit, the capacitance of capacitor is 100PF～100nF, the resistance value of resistor is 10k Ω～200M Ω.
4. according to the said multilayer discharging gap of claim 3 type surge protector, it is characterized in that in the said RC circuit, the capacitance of capacitor is 500PF～3nF, the resistance value of resistor is 500k Ω～20M Ω.
5. according to the said multilayer discharging gap of arbitrary claim type surge protector in the claim 1 to 4; It is characterized in that being provided with current protector; One end of said current protector is connected first discharge gap (F1) outer end, and its other end is connected the common port of each bar circuits for triggering.
6. according to the said multilayer discharging gap of claim 5 type surge protector; It is characterized in that being provided with indicating circuit; One end of said indicating circuit is connected the last discharge gap (Fn) outer end; Its other end is connected the common port of each bar circuits for triggering, or an end of said indicating circuit is connected the last discharge gap (Fn) outer end, and its other end is connected first discharge gap (F1) outer end.
7. according to the said multilayer discharging gap of arbitrary claim type surge protector in the claim 1 to 4, it is characterized in that said discharge gap is Open architecture or sealed construction.
8. according to the said multilayer discharging gap of claim 7 type surge protector, it is characterized in that the discharge gap of said Open architecture is become by the insulation ring-type shim pack of placing between n+1 electrode slice and adjacent two electrode slices.
9. according to the said multilayer discharging gap of claim 7 type surge protector, it is characterized in that the discharge gap of said sealed construction is made up of n+1 electrode slice and n airtight container, said electrode slice is positioned at airtight container and is fixed by airtight container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200439405U CN202488130U (en) | 2012-02-10 | 2012-02-10 | Discharge gap type multi-layer surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200439405U CN202488130U (en) | 2012-02-10 | 2012-02-10 | Discharge gap type multi-layer surge protector |
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| Publication Number | Publication Date |
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| CN202488130U true CN202488130U (en) | 2012-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012200439405U Withdrawn - After Issue CN202488130U (en) | 2012-02-10 | 2012-02-10 | Discharge gap type multi-layer surge protector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545196A (en) * | 2012-02-10 | 2012-07-04 | 杨国华 | Multilayer discharge gap type surge protection device |
| CN103969529A (en) * | 2014-05-14 | 2014-08-06 | 菲尼克斯亚太电气（南京）有限公司 | Multi-layer gap type lightning arrester indicating circuit |
| WO2017129291A1 (en) * | 2016-01-29 | 2017-08-03 | Epcos Ag | Arrangement for diverting voltage surges |
-
2012
- 2012-02-10 CN CN2012200439405U patent/CN202488130U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102545196A (en) * | 2012-02-10 | 2012-07-04 | 杨国华 | Multilayer discharge gap type surge protection device |
| CN102545196B (en) * | 2012-02-10 | 2015-01-28 | 四川中光防雷科技股份有限公司 | Multilayer discharge gap type surge protection device |
| CN103969529A (en) * | 2014-05-14 | 2014-08-06 | 菲尼克斯亚太电气（南京）有限公司 | Multi-layer gap type lightning arrester indicating circuit |
| WO2017129291A1 (en) * | 2016-01-29 | 2017-08-03 | Epcos Ag | Arrangement for diverting voltage surges |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121010 Effective date of abandoning: 20150128 |
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| RGAV | Abandon patent right to avoid regrant |