CN101227088B - Multi spot spark triggering surge protector - Google Patents
Multi spot spark triggering surge protector Download PDFInfo
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- CN101227088B CN101227088B CN2007101714032A CN200710171403A CN101227088B CN 101227088 B CN101227088 B CN 101227088B CN 2007101714032 A CN2007101714032 A CN 2007101714032A CN 200710171403 A CN200710171403 A CN 200710171403A CN 101227088 B CN101227088 B CN 101227088B
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- igniting
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T2/00—Spark gaps comprising auxiliary triggering means
- H01T2/02—Spark gaps comprising auxiliary triggering means comprising a trigger electrode or an auxiliary spark gap
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T1/00—Details of spark gaps
- H01T1/02—Means for extinguishing arc
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T15/00—Circuits specially adapted for spark gaps, e.g. ignition circuits
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T4/00—Overvoltage arresters using spark gaps
- H01T4/10—Overvoltage arresters using spark gaps having a single gap or a plurality of gaps in parallel
- H01T4/14—Arcing horns
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- Combustion & Propulsion (AREA)
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Abstract
The invention discloses a multi-spot spark triggering surge protector, which comprises a multi-spot spark triggering circuit, a main circuit, a built-in arc extinguishing system and a pressure resistance module, wherein an igniting unit group of the multi-spot triggering circuit, an electrode of the main circuit and an arc-extinguishing chamber of the built-in arc extinguishing system are positioned in the same inner space which is limited by an insulating casing. The technical proposal of the multi-spot spark triggering surge protector can realize the possibility that the large negotiability is combined with the high continued flow breaking capacity when distinctively reduces voltage protecting level simultaneously.
Description
Technical field
The present invention relates to the surge protection technical field of low voltage electrical equipment, more particularly, relate to a kind of multi spot spark triggering surge protector.
Background technology
It is serious that thunder and lightning and other strong jamming undermine the consequence that causes thus to causing of electronic information, and for this reason, the development of lightning protection technology has become the harmful superpotential main strength of present solution.Thunder and lightning by the low frequency composition of high energy with have infiltrative high frequency composition and form.It is mainly through two kinds of forms, and a kind of is the lightening pulse that directly conducts through metal pipe line or ground wire; A kind of is that the Lightning Electromagnetic Pulse of lightning channel and current by pass is sensed metal pipe line or ground wire with various coupled modes and produced overvoltage surge.For electronic message unit, harm mainly comes from the coupling energy of the Lightning Electromagnetic Pulse that is caused by thunder and lightning.Wherein the counterattack of the earth potential of the induction thunder of the conduction of power line and ground wire passage is superpotential main invasion approach.
Because thunder and lightning is attacked electronic information all-pervasively, the centre point of lightning protection is to release and equilibrium.Releasing is that energy with thunder and lightning and Lightning Electromagnetic Pulse is released through the earth, and should meet the level principle, promptly many as far as possible, as far as possible far excess energy was released into ground before introducing communication system; Level is exactly to distinguish level according to the lightning protection of being set up the thunder and lightning energy is weakened.Equilibrium is exactly to keep the potential difference that system's each several part does not produce is enough to cause damage, and promptly the current potential of system place environment and all metallic conductors of system itself keeps equal basically when transient phenomenon, and this essence is based on the equalized voltage connection.
It possibly is the efficient apparatus of realizing that active circuit is all pressed by the route protection surge protector that direct lightning strike hits that but the lightning protection device of direct striking thunder prevention is generally used for, and is that lightening pulse is got into underground releasing, and realizes the important component part that equalized voltage connects.This type lightning protection device is taken on by the switching mode surge protector usually.
For using for the switching mode surge protector in LPZO zone; When guaranteeing to have big discharge capacity; Also need control following two key points: interrupted ability, promptly the power frequency arc behind lightening pulse need in time extinguish in order to avoid influence the operate as normal of main circuit; The voltage protection level, the voltage protection level here should be got maximum in discharge voltage or residual voltage; Do not damage when can bear once maximum discharge capacity.
In existing clearance type thunder and lightning bleeder; On the one hand, or/and guarantee stable discharging work, must reduce starting the arc gap for obtaining low discharge voltage as far as possible; On the other hand; Obtain good specified disconnection afterflow and need elongate electric arc, increasing electrode distance is one of best mode, and both exist contradiction.For this reason, how not only to be satisfied low-voltage discharge but also can guarantee that specified disconnection afterflow ability is the emphasis that everybody studies.
In known overvoltage protection, everybody relatively pays attention to surge protector response lightening pulse ability, has developed panoramic auxiliary triggering technology for this reason; Relatively be typically capacitance network and transformer electronics triggering technique; These The Application of Technology; For air gap type surge protector is once big technology leap; But still have some problems: as using the capacitance network triggering technique, the voltage protection level still is higher than general votage limit type surge protector, and circuits for triggering are complicated; Transformer electronics triggering technique has been to use pulse transformer as the igniting Primary Component, and because of having pulsatile once ignition Characteristics defective, so that can not guarantee stable triggering performance, these technology can not solve afterflow rupture capacity problem simultaneously.
Summary of the invention
The objective of the invention is to; The high pressure characteristics of lightning protection is combined with interrupted the requirement; And the surge protection device that proposes a kind of low triggering and obviously improve specified disconnection afterflow ability; Thereby when realizing low discharge voltage and significantly reducing the voltage protection level, possess higher specified disconnection afterflow ability, the phenomenon that arcing leaks is also eliminated in the setting of flame arrest passage.
Thus; The present invention provides a kind of multi spot spark triggering surge protector; Comprise: multi spot spark circuits for triggering, main circuit, built-in arc quenching system and withstand voltage module; Wherein, the arc control device of the igniting unit group of said multi spot spark circuits for triggering, the main electrode of main circuit and built-in arc quenching system are in the same inner space that is limited insulation shell, and wherein two main electrodes are the placement of " eight " font symmetry in same plane.
Wherein, said igniting unit group is combined to form by a plurality of igniting are monomer series-connected, and wherein, electric conductor of series connection is as ignitor between per two igniting monomers, and this electric conductor is by resistant to elevated temperatures material manufacture.The both sides outermost end of this igniting unit group is an electric conductor, and perhaps the both sides outermost end of this igniting unit group is the igniting monomer; Igniting unit group series system adopts soldering, riveted joint, suppresses and is close to one of them technology mode manufacturing of placement.
Said igniting monomer adopts epoxy wiring board or FPC manufacturing; This igniting monomer comprises insulating barrier, and insulating barrier is resistant to elevated temperatures insulating material manufacturing, and thickness is that 0.15mm is to 0.4mm.Said igniting monomer also comprises metal level; Metal level covers a side or the both sides of insulating barrier; Metal level and/or electric conductor protrude insulating barrier and place; Between two adjacent metal levels and/or electric conductor, to form ignition gap, obtain low insulation resistance, this is in and plays arc discharge under the pulse surge at first.
Said multi spot spark circuits for triggering are connected between phase line and ground wire or phase line and the center line; Said multi spot spark circuits for triggering comprise quick switch and nonlinear resistance frequently; Wherein, Metal level and/or electric conductor to stride across first insulating barrier in the igniting unit group begin; Till the metal level and/or electric conductor of penult insulating barrier; Metal level and/or the electric conductor that will stride across each insulating barrier successively respectively are connected to pin of quick switch frequently, and the pin that the metal level and/or the electric conductor of last insulating barrier is connected to nonlinear resistance is with the another pin of quick switch and the another pin of nonlinear resistance are connected to ground wire or center line jointly frequently; Wherein, the quick switch of this frequency is selected high pressure ceramics or electric capacity for use, and the capacitance parameter alternative condition is: Ur＜Us, and wherein Ur is two interelectrode ceiling voltages of main circuit, Us is the electric capacity safe voltage; Nonlinear resistance is selected piezo-resistance for use.
Said main circuit comprises: main electrode, electric arc and binding post group; Wherein, an end of first main electrode connects the phase line end in the binding post group, and second main electrode connects ground wire and the center line common port in the binding post group; Said igniting unit group is built-in to be connected in the narrow space of close together between two main electrodes; Wherein, The first main electrode conductivity of line end connects with connecting mutually for first igniting monomer in the said igniting unit group or the side of electric conductor, connects second main electrode of ground wire and center line common port and the outside of last igniting monomer or electric conductor and isolates and keep several mm distance through plastics muscle and/or spring leaf.
Said insulation shell is built in the withstand voltage module; Said insulation shell is selected the thermoplasticity or the heat cured insulation material manufacture of nylon-type, polymer class for use, and said withstand voltage module is selected the high-strength material structure for use.
Said withstand voltage module is made up of through screw lock upper shell and lower house, after two housings are involutory except placing at the middle part the said insulation shell, in both sides and insulation shell combination also formation exhaust passage.
Said built-in arc quenching system comprises: arc control device and flame arrest passage; The said arc control device wide space that distance is far away between two main electrodes that are " eight " font layout also will be advanced nock and place from nearer narrow space towards said two main electrode distance; Said flame arrest passage comprises by formed exhaust passage of withstand voltage module and flame arrest net; The hot gas that let out outside spray this exhaust passage cools off; Interception reaches the flame arrest purpose with common cooperation to the flame arrest net to spark, and wherein, this flame arrest net is selected the exotic material manufacturing for use.
Technical scheme of the present invention can be when significantly reducing the voltage protection level combines big through-current capability and high afterflow breaking capacity becomes possibility.
Description of drawings
Above-mentioned and other characteristic, character and advantage of the present invention will become more obvious through the description below in conjunction with accompanying drawing and embodiment, in the accompanying drawings, identical Reference numeral is represented identical characteristic all the time, wherein:
Fig. 1 shows the cut-away view of multi spot spark triggering surge protector of the present invention;
Fig. 2 shows the circuit theory diagrams of multi spot spark triggering surge protector of the present invention;
Fig. 3 shows the main circuit structure of multi spot spark triggering surge protector of the present invention;
Fig. 4 shows the structure chart that shells of multi spot spark triggering surge protector of the present invention;
Fig. 5 shows the structure chart of main circuit of the tape insulation housing of multi spot spark triggering surge protector of the present invention;
Fig. 6 a, 6b, 6c show the igniting monomer of the different structure of multi spot spark triggering surge protector of the present invention;
Fig. 7 a, 7b show in the multi spot spark triggering surge protector of the present invention the igniting unit group that become by difference igniting set of monomers;
Fig. 8 shows the flame arrest net in the multi spot spark triggering surge protector of the present invention;
Fig. 9 shows the withstand voltage module in the multi spot spark triggering surge protector of the present invention;
Figure 10 shows the insulation shell in the multi spot spark triggering surge protector of the present invention;
Figure 11 shows the structure of the arc control device in the multi spot spark triggering surge protector of the present invention;
Figure 12 shows the circuits for triggering plate structure in the multi spot spark triggering surge protector of the present invention.
Embodiment
Introduce as top; The objective of the invention is to the high pressure characteristics of lightning protection is combined with interrupted the requirement; And the surge protection device that proposes a kind of low triggering and obviously improve specified disconnection afterflow ability; Thereby when realizing low discharge voltage and significantly reducing the voltage protection level, possess higher specified disconnection afterflow ability, the phenomenon that arcing leaks is also eliminated in the setting of flame arrest passage.
For achieving this end; Need set up one and possess the surge leadage circuit of triggering function and the assembly of the specified disconnection afterflow of realization system; Provide and utilize the surge leadage circuit to accomplish the thunder and lightning process that respond, triggers, releases, the arc quenching system completion is to the requirement of specified disconnection afterflow behind the lightning current.
The multi spot spark triggering surge leadage circuit that the present invention proposes is made up of trigger element and main discharge circuit; Trigger element responds and provides the thermion of the required discharge of main circuit short circuit dischange to lightening pulse; Fill narrow of presenting the setting of " eight " font main electrode when thermion and to a certain degree after, can force short circuit between the main discharge electrode when regional, thereby completion surge leadage circuit is to the thunder and lightning process that responds, triggers, releases.In this case; Lightning current in the thunder and lightning vent unit, form short circuit release accomplish after; Electric arc is still kept short-circuit condition under power-frequency voltage, the afterflow of Here it is said work frequency circuit, and this phenomenon continues peace preservation association brings outage to the operate as normal of custom system tremendous influence; For in time, extinguish this harmful factor that influences the main system Electrical Safety fast; We utilize the arc control device in the arc quenching system to carry out disconnection afterflow task; Arc control device are realized by the arc extinguishing technology in the low tension switch; Guaranteeing that short circuiting arc is accomplished gets into to the release power frequency arc that kept behind the function served as bridge of thunder and lightning that arc control device are cut off, arc extinguishing, thereby realizes specified disconnection afterflow purpose.
Cause that for eliminating arc burning electric arc fireworks, metallic vapour and thermion directly are discharged into the external world; Must carry out flame arrest by the flame arrest passage in the arc quenching system and handle, the metal passage that this flame arrest passage can be arranged to through withstand voltage module and/or insulation shell combination or/and the flame arrest net or/and metallic walls realize.
According to the present invention, can obtain triggering stability, the reliability of large opening electrode well through the multi spot spark triggering technique.Adopt that a plurality of igniting are monomer series-connected to access the thermion that multi spot spark or electric arc discharge, to the igniting monomer adopt discharge one by one and in the end igniting monomer combines with piezo-resistance to form between the main electrode of lasting spark triggering in main gap till the short circuit dischange.
In addition, particularly advantageous is in trigger element, to use multi spot spark triggering technique and lasting circuits for triggering to guarantee stable triggering function.Thereby obtain such purpose: the triggering main discharge gap time is more stable sooner.
The present invention so constructs, and in instance of the present invention, adopts the high pressure ceramics to replace quick switch frequently, and this high pressure ceramics is only to the High-frequency Interference response like thunder and lightning electromagnetic pulse and so on; Adopt piezo-resistance to replace nonlinear resistance.Electric conductor of series connection adopts the copper-tungsten manufacturing between starting the arc gap.
For selection foundation following condition: the Ur＜Us of capacitance parameter, wherein Ur is two interelectrode ceiling voltages, and Us is the electric capacity safe voltage.
In the present invention, its operation principle is so to arrange to be provided with:
In the trigger element, all have an ignition gap to exist in each igniting unit group, this ignition gap is present in the insulating barrier outside that has low insulation resistance in the igniting monomer.Select for use the high pressure ceramics to connect, adopt n igniting monomer to carry out the synthetic igniting unit group of series with ignition gap; End from first ignition gap to n ignition gap; Pin conductivity of a public conducting surface and a high pressure ceramics between per two ignition gaps in the igniting unit group is connected; Each high pressure ceramics another pin conductivity is connected on the common point, promptly is connected on ground wire or center line end; Between the outside and common reference point of n ignition gap; Promptly n ignition gap connects the opposite side of high pressure ceramics; The piezo-resistance of connecting, simultaneously in the outside of n igniting monomer or electric conductor promptly between opposite side and the common reference point of n ignition gap connection high pressure ceramics through plastics muscle and/or spring leaf isolation and keep several mm distance.So the ignition gap of igniting unit group is built-in and be connected between the main discharge electrode, formed phase line end main discharge electrode～1st ignition gap～the 2nd ignition gap～... the such sequence of distance～common port main discharge electrode is opened in～the n ignition gap～insulation.
According to foregoing circuit, when Lightning Electromagnetic Pulse and transient overvoltage existed between phase line end main discharge electrode and the common port main discharge electrode, because the high pressure ceramics is relatively to high frequency short circuit, transient overvoltage can appear on the 1st ignition gap.When transient overvoltage surpasses starting the arc gap breakdown voltage predetermined value; The 1st ignition gap meeting conducting also arc discharge occurs, and transient overvoltage falls and the charging of high pressure ceramics simultaneously, and the transient overvoltage of this moment has appeared on the 2nd ignition gap; After the 1st high pressure ceramics charging accomplished; The lifting again of transient overvoltage this moment, when transient overvoltage surpassed the 2nd ignition gap insulation voltage, the 2nd ignition gap meeting conducting also arc discharge occurred; Transient overvoltage falls and the charging of high pressure ceramics simultaneously; The transient overvoltage of this moment has appeared on the 3rd ignition gap ... appear at n-1 ignition gap up to transient overvoltage successively, after n-1 ignition gap accomplished arc discharge, is connected in n the monomer of lighting a fire between the ignition gap and common port owing to piezo-resistance has replaced the high pressure ceramics; Therefore transient overvoltage appears on n ignition gap and the piezo-resistance; When transient overvoltage was higher than n ignition gap and piezo-resistance conducting voltage, ignition gap and piezo-resistance in the igniting monomer of all series connection can continue conducting, and ignition gap also discharges sustained arc; This moment because electric current is big and n to light a fire between monomer and the common reference point be insulating property (properties); Therefore the pressure drop that produces on all ignition gaps and the piezo-resistance all is superimposed upon between two main discharge electrodes, when thermion that electric arc discharged has changed between the main discharge electrode conductive condition, has possessed starting the arc requirement between the main discharge electrode and has produced main discharge electric arc; Because the pressure drop of this main discharge electric arc is much smaller than the conducting voltage of piezo-resistance, piezo-resistance will be closed automatically to accomplish and triggered function this moment.
By lightening pulse cause surge protection device accomplish the thunder and lightning energy released after, the L line (phase line) that lightening pulse causes is still continuing PE line (ground wire) or N line (neutral line) short circuit; Be the safety utilization of electric power and the work of completion lightning protection that do not influence main system, for the electric arc that thunder and lightning produces, we can not let it extinguish, but then must in time extinguish apace for power frequency continued flow.For this reason, be provided with the arc-chute in the specified disconnection afterflow structure in the content of the present invention, impel electric arc to leave the arc-chute of discharge position entering just through multiple technologies means such as magnetic blow-out technology, air-flow guiding, gas compressings and carry out arc, cooling, extinguishing process.
The entering arc-chute of pilot arc can help interrupted fast; One of which; Setting of the present invention is formed the through-flow circuit of " U " shape that can produce the magnetic blow-out effect by arc channel, output main electrode and output end metal plate that input metallic plate, input main electrode, thunder and lightning produce, thereby has created condition for adding hard arc entering arc control device; Its two, the present invention is provided with the flow direction of air passage directs airflow and the trend of electric arc, metallic walls in this passage and flame arrest net be refrigerating gas and heat of adsorption ion or metallic vapour well; In addition, the present invention is provided with the material of the aerogenesis effect that can bring that adopts nylon, polymer and so on and makes preferred material as insulation shell, can play booster action to the flow direction and the blow-out of electric arc.
Through knowing to understanding in depth of electric arc; Generally beginning to light electric arc is the metal vapors that relies on electrode; This electric arc that is supported by the metal vapors ion is metallic phase arc; Arc is after discharge a period of time then, and ambient air medium progressively gets into arc gap just makes metallic phase arc change the gaseous phase arc that is supported by gas ionization into.This section period is basically about 350 μ s; And general lightning induction electric current time of a pulse for this reason, is arranged on the nock of advancing of arc control device near two kinds of transferred arc places and seems more favourable also just tens delicate between the several millisecond basically; Through to the accumulation of the test data of this instance, according to the setting of arc control device of the present invention, outside starting the arc gap, placing arc control device, when guaranteeing that with this arc quenching plate neither can be by lightning current scaling loss postscript power frequency continued flow is introduced arc control device.
Expansive force for the arcing room air is heated and is produced sees through insulation wall through stress metal shell of the present invention and offsets; Therefore, withstand voltage module can be avoided plastic casing to avoid electric arc causing the gas suffered crunch that expands; Through being used in combination of circuitous metal passage and flame arrest net, can also prevent to greatest extent that to the gas-cooled while arcing from leaking.
With reference to accompanying drawing; Introduce a concrete implementation structure of the present invention; Wherein, Fig. 1 shows the overall structure of this embodiment, and Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, Figure 11 and Figure 12 displayed content are the concrete parts among Fig. 1, and Fig. 2 is the circuit theory diagrams of this embodiment.State signal when Fig. 3 is main circuit work, arrow is represented the sense of current in the electric arc 39.Because above-mentioned accompanying drawing institute content displayed is same embodiment, therefore in the following description with quoting above-mentioned accompanying drawing 1-12 simultaneously.
According to this embodiment; This multi spot spark triggering surge protector; Comprise: multi spot spark circuits for triggering 11, main circuit 33, built-in arc quenching system and withstand voltage module 34; Wherein, the electrode 2,2 of the igniting unit group 5 of these multi spot spark circuits for triggering 11, main circuit 33 ' and the arc control device 8 of built-in arc quenching system be in the same inner space 4 that limits insulation shell 29.Above-mentioned multi spot spark circuits for triggering 11, main circuit 33, built-in arc quenching system and withstand voltage module 34 are placed on shell 13 and cover in the 14 defined spaces, also have the clamp 15 that is used to install on this shell 13.
This igniting unit group 5 forms (with reference to figure 7a and Fig. 7 b) by a plurality of igniting monomer 35 tandem compounds, and wherein, electric conductor 17 of series connection is as ignitor between per two igniting monomers 35, and this electric conductor 17 is by resistant to elevated temperatures material manufacture.The both sides outermost end of this igniting unit group 5 is electric conductors 17, and perhaps the both sides outermost end of this igniting unit group 5 is igniting monomers 35.Promptly; The electric conductor 17 of respectively connecting in igniting unit group 5 both sides; Form " electric conductor 17～igniting monomer 35～electric conductor 17～igniting monomer 35～...～igniting monomer 35～electric conductor 17 " series sequence, or need not respectively to connect in igniting unit group 5 both sides an electric conductor 17 with formation " the monomer 35～electric conductor 17 of lighting a fire～...～electric conductor 17～igniting monomer 35 " series sequence.The series system of igniting unit group 5 adopts soldering, riveted joint, suppresses and is close to one of them technology mode manufacturing of placement.
This igniting monomer 35 adopts epoxy wiring board or FPC manufacturing.Igniting monomer 35 comprises insulating barrier 19, and insulating barrier 19 is resistant to elevated temperatures insulating material manufacturing, and thickness is that 0.15mm is to 0.4mm.This igniting monomer 35 also comprises metal level 18; Metal level 18 covers a side or the both sides of insulating barrier 19; That is, igniting monomer 35 has the structure of " metal level 18～insulating barrier 19～metal level 18 " or only has the structure of " insulating barrier 19 " or have the structure of " metal level 18～insulating barrier 19 ".Wherein, Metal level 18 and/or electric conductor 17 protrude insulating barriers 19 and place, and between two adjacent metal levels 18 and/or electric conductor 17, to form ignition gap 40, obtain low insulation resistance; This is in and plays arc discharge (with reference to figure 6a-Fig. 6 c, and Fig. 7 a and Fig. 7 b) under the pulse surge at first.
The setting of electric conductor 17 in this igniting unit group 5 or/and metal level 18 and starting the arc gap insulation layer 19 are alternately connected; Setting principle guarantees that electric conductor 17 is or/and metal level 18 has protruded in cambered surface 20; To help reducing the dispersiveness of trigger voltage, be easy to form electric arc.Make that narrow end surface 30 and 31 is welded in circuits for triggering plate 23 corresponding scolding tin hole 30 and the hole 31 in the FPC of igniting monomer 35; In addition spring leaf 16 is welded in the hole 16 in the corresponding circuits for triggering plate 23 (with reference to Figure 12).
Multi spot spark circuits for triggering 11 are connected between phase line L and ground wire PE or phase line L and the center line (N); Multi spot spark circuits for triggering 11 comprise frequently quick switch 41 and nonlinear resistance 37; Wherein, With metal level 18 and/or electric conductor 17 beginnings that stride across first insulating barrier 19 in the igniting unit group 5; Till the metal level 18 and/or electric conductor 17 of penult insulating barrier 19; Metal level 18 and/or the electric conductor 17 that will stride across each insulating barrier 19 successively respectively are connected to 41 1 pins of quick switch frequently, and the pin that the metal level 18 and/or the electric conductor 17 of last insulating barrier is connected to nonlinear resistance 37 is with the another pin of quick switch 41 and the another pin of nonlinear resistance 37 are connected to ground wire PE or center line N jointly frequently.I.e. metal level 18 and/or electric conductor 17 beginnings to stride across the 1st insulating barrier 19 in the igniting unit group 5; To stride across respectively successively the 2nd, the 3rd ..., the metal level 18 of a n-1 insulating barrier 19 or electric conductor 17 be connected to 41 1 pins of quick switch frequently; With last 1 promptly n metal level 18 or electric conductor 17 or spring leaf 16 be connected to 37 1 pins of nonlinear resistance, at last will the quick switch 41 another pins of frequency and nonlinear resistance 37 another pins be connected to common ports 3 such as PE line or N line jointly.Wherein, the quick switch 41 of this frequency is selected high pressure ceramics or electric capacity for use, and the capacitance parameter alternative condition is: Ur＜Us, and wherein Ur is the ceiling voltage of 2,2 at two electrodes of main circuit, Us is the electric capacity safe voltage; Nonlinear resistance 37 is selected piezo-resistance for use.
Main circuit 33 comprises: main electrode 2,2, electric arc 39 and binding post group 3,3 (with reference to figure 5).Wherein, the ground wire (PE) in 3, the second main electrodes of phase line (L) end in an end of the first main electrode 2 connection binding post group, the 2 connection binding post groups and 3, two main electrodes of common port 2,2 of center line (N) are the placement of " eight " font symmetry in same plane.Igniting unit group 5 is built-in to be connected on two main electrodes 2, between 2 in the narrow space 38 of close together; Wherein, First main electrode, 2 conductivity of line end 3 connect with connecting mutually for first igniting monomer 35 in the igniting unit group 5 or the side of electric conductor 17, connect second main electrode 2 of ground wire and center line common port 3 and the outside of last igniting monomer 35 or electric conductor 17 and isolate and keep several mm distance through plastics muscle 21 and/or spring leaf 16.
Phase line among this embodiment (L) utmost point 1 or ground wire (PE)/center line (N) utmost point 1 be by input terminal group 3 and main electrode 2 or outlet terminal group 3 ' with main electrode 2 ' be configured to; Input terminal group 3 and main electrode 2 and outlet terminal group 3 ' with main electrode 2 ' obtain favorable conductive through spot welding or mechanical compaction to contact effect.
Insulation shell 29 (with reference to Figure 10) is built in the withstand voltage module 34.Insulation shell 29 is selected the thermoplasticity or the heat cured insulation material manufacture of nylon-type, polymer class for use, comprise insulation upper shell 6 and insulation lower house 7, and withstand voltage module 34 is selected the high-strength material structure for use.Following some requirement of structure foundation for insulation shell: can electric arc that exist and stress metal shell be isolated; Fixedly phase line (L) utmost point 1, ground wire (PE)/center line (N) utmost point 1, trigger electrode group, arc control device, and playing cambered surface and can form " U " conduct current circuit after fixing for phase line (L) utmost point 1, ground wire (PE)/center line (N) utmost point 1 and trigger electrode group.Requirement simultaneously can be interference fit or utilize spring leaf 16 to reach this purpose between the three.This spring leaf 16 can also play a part the conductive carrier of n electric conductor 17 and piezo-resistance 37.
Withstand voltage module 34 is formed (with reference to figure 9) by upper shell 9 and lower house 10 through screw 12 lockings, after two housings are involutory, except place said insulation shell 29 at the middle part, also forms exhaust passage 28 in both sides and insulation shell 29 combinations.
Built-in arc quenching system comprises arc control device 8 and flame arrest passage 27.Said arc control device 8 (with reference to Figure 11) are being two main electrodes 2 that " eight " font arranges, distance is far away between 2 wide space 38 and will advancing nock 24 and place towards the nearer narrow space 38 of 2,2 distances of said two main electrodes; Main electrode 2 and 2 ' be parallel symmetry to place is provided with the trigger electrode group to help the discharge that is triggered fast in the less narrow space 38 of parallel distance, placed the arc control device 8 that play interrupted effect in the bigger wide space 38 of parallel distance; So can obtain to satisfy the advantage of elongating electric arc 39.Flame arrest passage 27 comprises by withstand voltage module 34 formed exhaust passages 28 and flame arrest net 22; 28 pairs of this exhaust passages are outwards sprayed the hot gas of letting out and are cooled off; 22 pairs of spark interceptions of flame arrest net reach the flame arrest purpose with common cooperation, and wherein, this flame arrest net 22 is selected the exotic material manufacturing for use.
In this embodiment, use spring card 25 and 25 that input and output are connected respectively on the metallic plate 26 and 26 of phase line (L) utmost point 1, ground wire (PE)/center line (N) utmost point 1 between multi spot spark circuits for triggering 11 and the main circuit 33.
Technical scheme of the present invention can be when significantly reducing the voltage protection level combines big through-current capability and high afterflow breaking capacity becomes possibility.
The foregoing description provides to being familiar with personnel in this area and realizes or use of the present invention; Being familiar with those skilled in the art can be under the situation that does not break away from invention thought of the present invention; The foregoing description is made various modifications or variation; Thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (9)
1. a multi spot spark triggering surge protector is characterized in that, comprising:
Multi spot spark circuits for triggering (11), main circuit (33), built-in arc quenching system and withstand voltage module (34); Wherein, The main electrode (2,2 ') of the igniting unit group (5) of said multi spot spark circuits for triggering (11), main circuit (33) and the arc control device (8) of built-in arc quenching system are in the same inner space (4) that is limited insulation shell (29), and wherein two main electrodes (2,2) are the placement of " eight " font symmetry in same plane;
Wherein said built-in arc quenching system comprises arc control device (8) and flame arrest passage (27);
Said arc control device (8) the wide space (38) that distance is far away between two main electrodes (2,2) that are " eight " font layout also will be entered the nearer narrow space (38) of nock (24) distance towards between said two main electrodes (2,2) and place;
Said flame arrest passage (27) comprises by formed exhaust passage of withstand voltage module (34) (28) and flame arrest net (22); The hot gas that let out outside spray this exhaust passage (28) cools off; Interception reaches the flame arrest purpose with common cooperation to flame arrest net (22) to spark; Wherein, this flame arrest net (22) is selected the exotic material manufacturing for use.
2. multi spot spark triggering surge protector as claimed in claim 1; It is characterized in that; Said igniting unit group (5) is formed by a plurality of igniting monomers (35) tandem compound; Wherein, an electric conductor of series connection (17) is as ignitor between per two igniting monomers (35), and this electric conductor (17) is by resistant to elevated temperatures material manufacture.
3. multi spot spark triggering surge protector as claimed in claim 2 is characterized in that, the both sides outermost end of said igniting unit group (5) is electric conductor (17), and the both sides outermost end of perhaps said igniting unit group (5) is an igniting monomer (35);
Wherein, igniting unit group (5) series system adopts soldering, riveted joint, suppresses and is close to one of them technology mode manufacturing of placement.
4. multi spot spark triggering surge protector as claimed in claim 2 is characterized in that, said igniting monomer (35) adopts epoxy wiring board or FPC manufacturing;
This igniting monomer (35) comprises insulating barrier (19), and insulating barrier (19) is resistant to elevated temperatures insulating material manufacturing, and thickness is that 0.15mm is to 0.4mm.
5. multi spot spark triggering surge protector as claimed in claim 4 is characterized in that, said igniting monomer (35) also comprises metal level (18), and metal level (18) covers a side or the both sides of insulating barrier (19),
Wherein, metal level (18) and/or electric conductor (17) protrude insulating barrier (19) and place, and between adjacent two metal levels (18) and/or electric conductor (17), to form ignition gap (40), obtain low insulation resistance, and this is in and plays arc discharge under the pulse surge at first.
6. multi spot spark triggering surge protector as claimed in claim 5; It is characterized in that; Said multi spot spark circuits for triggering (11) are connected between phase line (L) and ground wire (PE) or phase line (L) and the center line (N); Said multi spot spark circuits for triggering (11) comprise quick switch (41) and nonlinear resistance (37) frequently; Wherein, With metal level (18) and/or electric conductor (17) beginning that strides across first insulating barrier (19) in the igniting unit group (5), till the metal level (18) and/or electric conductor (17) of penult insulating barrier (19), the metal level (18) and/or the electric conductor (17) that will stride across each insulating barrier (19) successively respectively are connected to (41) pins of quick switch frequently; With the pin that the metal level (18) and/or the electric conductor (17) of last insulating barrier is connected to nonlinear resistance (37), the another pin of quick switch (41) and the another pin of nonlinear resistance (37) are connected to ground wire (PE) or center line (N) jointly frequently;
Wherein, the quick switch of this frequency (41) is selected high pressure ceramics or electric capacity for use, and the capacitance parameter alternative condition is: Ur＜Us, and wherein Ur is the ceiling voltage between two electrodes (2,2) of main circuit, Us is the electric capacity safe voltage; Nonlinear resistance (37) is selected piezo-resistance for use.
7. like claim 2 or 3 described multi spot spark triggering surge protectors, it is characterized in that said main circuit (33) comprising: main electrode (2,2), electric arc (39) and binding post group (3,3);
Wherein, an end of first main electrode (2) connects the phase line end (3) in the binding post group, and second main electrode (2) connects ground wire and the center line common port (3) in the binding post group;
Said igniting unit group (5) is built-in to be connected in the narrow space (38) of close together between two main electrodes (2,2); Wherein, First main electrode (2) conductivity of line end (3) connects with connecting mutually for first igniting monomer (35) in the said igniting unit group (5) or the side of electric conductor (17), connects second main electrode (2) of ground wire and center line common port (3) and the outside of last igniting monomer (35) or electric conductor (17) and isolates and keep several mm distance through plastics muscle (21) and/or spring leaf (16).
8. multi spot spark triggering surge protector as claimed in claim 1 is characterized in that, said insulation shell (29) is built in the withstand voltage module (34);
Said insulation shell (29) is selected the thermoplasticity or the heat cured insulation material manufacture of nylon-type, polymer class for use, and said withstand voltage module (34) is selected the high-strength material structure for use.
9. multi spot spark triggering surge protector as claimed in claim 8; It is characterized in that; Said withstand voltage module (34) is made up of through screw (12) locking upper shell (9) and lower house (10); After two housings are involutory except place said insulation shell (29) at the middle part, in both sides and insulation shell (29) combination also formation exhaust passage (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101714032A CN101227088B (en) | 2007-11-30 | 2007-11-30 | Multi spot spark triggering surge protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101714032A CN101227088B (en) | 2007-11-30 | 2007-11-30 | Multi spot spark triggering surge protector |
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| Publication Number | Publication Date |
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| CN101227088A CN101227088A (en) | 2008-07-23 |
| CN101227088B true CN101227088B (en) | 2012-03-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101714032A Active CN101227088B (en) | 2007-11-30 | 2007-11-30 | Multi spot spark triggering surge protector |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895108B (en) * | 2009-05-19 | 2012-10-17 | 上海电科电器科技有限公司 | Surge protection system |
| CN105737199A (en) * | 2014-12-08 | 2016-07-06 | 游中国 | Environment-friendly type electronic lighter |
| US10685805B2 (en) * | 2018-11-15 | 2020-06-16 | Ripd Ip Development Ltd | Gas discharge tube assemblies |
| CN113328423B (en) * | 2021-06-01 | 2022-11-08 | 国网湖北省电力有限公司超高压公司 | Surge protector for high-voltage power |
| CN113629686B (en) * | 2021-07-22 | 2022-10-28 | 西安交通大学 | Intelligent multilayer gap overvoltage protector based on graphite-metal coating material |
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|---|---|---|---|---|
| CN1467895A (en) * | 2002-07-09 | 2004-01-14 | ˼��±���˹���Ϲɷ�����˾ | Spark discharging equipment bearing lightning current |
| CN1674393A (en) * | 2005-03-28 | 2005-09-28 | 西安交通大学 | Overvoltage protector consitituted by multi-spark angle |
| CN101040357A (en) * | 2004-07-21 | 2007-09-19 | Abb法国公司 | Arc-breaker device in particular for an overload protection device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1467895A (en) * | 2002-07-09 | 2004-01-14 | ˼��±���˹���Ϲɷ�����˾ | Spark discharging equipment bearing lightning current |
| CN101040357A (en) * | 2004-07-21 | 2007-09-19 | Abb法国公司 | Arc-breaker device in particular for an overload protection device |
| CN1674393A (en) * | 2005-03-28 | 2005-09-28 | 西安交通大学 | Overvoltage protector consitituted by multi-spark angle |
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| CN101227088A (en) | 2008-07-23 |
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Owner name: SHANGHAI DIANKE SCIENCE CO., LTD. Free format text: FORMER OWNER: SHANGHAI ELECTRICAL APPLIANCES SCIENCE INST. (GROUP) CO., LTD. Effective date: 20090807 |
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