CN201383445Y - Switch extinguishing arc circuit - Google Patents
Switch extinguishing arc circuit Download PDFInfo
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- CN201383445Y CN201383445Y CN200920118729U CN200920118729U CN201383445Y CN 201383445 Y CN201383445 Y CN 201383445Y CN 200920118729 U CN200920118729 U CN 200920118729U CN 200920118729 U CN200920118729 U CN 200920118729U CN 201383445 Y CN201383445 Y CN 201383445Y
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Abstract
A switch extinguishing arc circuit comprises a main contact, a current-limiting resistance and a three-end controllable circuit composed of a first voltage end, a second voltage end and a control end, wherein an auxiliary circuit is connected in parallel between a first electrode end and a second electrode end of the main contact, and is characterized by comprising an auxiliary contact, the first voltage end is connected with the first electrode end, the second voltage end is connected with the second electrode end, the control end is connected with a first end of the auxiliary contact, and a second end of the auxiliary contact is connected with the first voltage end through the current-limiting resistance, wherein the controllable circuit can be connected when forward voltage is added on the first voltage end and the second voltage end, and the control end receives trigger signals, and the controlled circuit is also connected when backward voltage is added on the first voltage end and the second voltage end, and the control end receives the trigger signals, and the controlled circuit is stopped when forward or backward voltage is added between the first voltage end and the second voltage end, and the control end can not receive the trigger signals. Compared with the prior art, by adopting the three-end controllable circuit with the control end which can be connected through receiving the trigger signals while the auxiliary contact is closed, the switch extinguishing arc circuit enables working current to pass through the controlled circuit, damages the arc starting condition of the main contact, and effectively eliminates electric arc during the closure of the main contact, has simple structure, convenient installation and use and excellent extinguishing arc effect, and is beneficial for spreading and using.
Description
Technical field
The utility model relates to a kind of switch arc suppression circuit for switch devices that prevents device for switching arcing when closed or disconnection.
Background technology
On-load switch, socket, breaker, A.C. contactor, relay etc. are the device for switching of using always, and this class device for switching adopts the contact of mechanical contact more and disconnects conducting or the disjunction that realizes operating circuit.But, the mechanical contact of above-mentioned device for switching closed and moment of separating owing to contact spacing from very little and electric field strength is very big, at this moment just can produce arcing (discharge) phenomenon, switch contact is burnt in frequent arcing meeting, and then influence switch useful life, also reduced the reliability of circuit, therefore, how effectively extinguish arcs is that device for switching needs a problem needing to be resolved hurrily in actual applications.
In order to eliminate the arcing phenomenon of device for switching, extensively adopt vacuum interrupter or SF6 arc-control device to eliminate electric arc in the prior art, especially high-voltage great-current field, though this arc-control device has overcome sparking, arcing phenomenon, can reach arc quenching effect preferably, itself complex structure, manufacturing cost is higher, maintenance difficult, and the ampacity of device for switching and be subjected to the restriction of arc extinguishing ability useful life are unfavorable for generally promoting the use of.
The method of the elimination arcing phenomenon that another kind is comparatively common is the purpose that an equivalent resistance shunt circuit in parallel is realized extinguishing arc at the main switch two ends, as application number is that 200810034835.3 Chinese invention patent " based on the non-arc breaking deenergizing and the method thereof of variable capacitance " discloses a kind of non-arc breaking deenergizing and method thereof based on variable capacitance, the main contact, auxiliary contact, variable capacitance, the current-limiting resistance that comprise device for switching, auxiliary contact, variable capacitance and the current-limiting resistance formation accessory channel that is cascaded, accessory channel is in parallel with main contact.In above-mentioned patent, adopted the auxiliary circuit that forms by auxiliary contact, variable capacitance and current-limiting resistance polyphone to eliminate the electric arc of main contact when disconnecting, utilize the charge characteristic of variable capacitance to come the transferred arc energy, make main contact under minimum arc voltage, disconnect.
But, because electric capacity itself is except charge characteristic, the function that has discharge simultaneously, the electric capacity in the above-mentioned patent is higher to the designing requirement of the time of discharging and recharging, if saturated before main contact does not also disconnect fully, then this moment, electric capacity will discharge electric charge, so, have the part electric energy and transfer to again on the main contact loop, when disconnecting, main contact still can produce electric arc, can not reach arc quenching effect preferably, also be unfavorable for generally using; And, auxiliary circuit in this patent is merely able to eliminate the electric arc of main switch when disconnecting, when main switch is closed once more, still can produce the arcing phenomenon, therefore, the electric arc of main switch when disconnecting can not be eliminated, when main switch is closed once more, still the arcing phenomenon can be produced, therefore, can not guarantee simultaneously that switch disconnects and all can realize elimination when closed, arc quenching effect is undesirable, awaits to do further improvement.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of can guarantee that switch does not have the arc closure and non-arc breaking is disconnected and the better switch arc suppression circuit for switch devices of arc quenching effect at the above-mentioned state of the art, the circuit structure of this switch arc suppression circuit for switch devices is simple, helps generally promoting the use of.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this switch arc suppression circuit for switch devices, include the device for switching main contact that can be serially connected in direct current or the alternating current circuit, this main contact has first electrode tip and second electrode tip, also be parallel with an auxiliary circuit between first electrode tip of described main contact and second electrode tip, it is characterized in that: described auxiliary circuit includes
One auxilliary contact, this auxilliary contact and described main contact are to have the linked switch of logic control relation successively;
One current-limiting resistance; And
One or three end controlable electric currents include first voltage end, second voltage end and control end;
Wherein, first voltage end of described controlable electric current and first electrode tip of described main contact link to each other, second voltage end of described controlable electric current and second electrode tip of described main contact link to each other, first end of the control end of described controlable electric current and described auxilliary contact links to each other, second end that should assist contact links to each other through first voltage end of described current-limiting resistance and described controlable electric current, and, have following logical relation between first voltage end of described controlable electric current, second voltage end and the control end:
When described first voltage end adds forward voltage with respect to second voltage end, and described control end is when receiving triggering signal simultaneously, described controlable electric current conducting;
When described first voltage end adds negative voltage with respect to second voltage end, and described control end is when receiving triggering signal simultaneously, described controlable electric current conducting;
Between described first voltage end and second voltage end, add forward or negative voltage, and during described control end Triggerless, described controlable electric current ends.
Described auxiliary circuit can only include a controlable electric current, also can include the controlable electric current of two or more plural parallel stages, wherein, first voltage end of each described controlable electric current links to each other with second electrode tip with first electrode tip of described main contact respectively with second voltage end, and first end that the control end of each described controlable electric current connects altogether to one point union and described auxilliary contact links to each other.
Simply, described controlable electric current can for a pair of to controllable silicon, first electrode tip of the anode of this bidirectional triode thyristor and described main contact links to each other, second electrode tip of the negative electrode of this bidirectional triode thyristor and described main contact links to each other, and first end of the control end of this bidirectional triode thyristor and described auxilliary contact links to each other.
As preferably, also bidirectional triode thyristor can be substituted with two one-way SCRs, described controlable electric current includes first one-way SCR and second one-way SCR, wherein, first electrode tip of the anode of described first one-way SCR and described main contact links to each other, second electrode tip of the negative electrode of this first one-way SCR and described main contact links to each other, and first end of the control end of this first one-way SCR and described auxilliary contact links to each other; Second electrode tip of the anode of described second one-way SCR and described main contact links to each other, and first electrode tip of the negative electrode of this second one-way SCR and described main contact links to each other, and first end of the control end of this second one-way SCR and described auxilliary contact links to each other.
Preferred as another, described controlable electric current can also for: include electric capacity, time delay resistance, NPN type triode, first voltage-stabiliser tube and second voltage-stabiliser tube, wherein, first end of the base stage one tunnel of described triode and described auxilliary contact links to each other, another road links to each other with the negative electrode of described first voltage-stabiliser tube, second electrode tip of the emitter of described triode and described main contact links to each other, the collector electrode one tunnel of this triode links to each other with described first electrode tip behind time delay resistance and the electric capacity of serial connection successively, the negative electrode of another road of the collector electrode of this triode and described second voltage-stabiliser tube links to each other, and the anode of the anode of described first voltage-stabiliser tube and second voltage-stabiliser tube connects the back altogether and links to each other with second electrode tip of described main contact.
Compared with prior art, advantage of the present utility model is: adopted auxiliary circuit to eliminate the electric arc that device for switching produces when disconnection or closure, this auxiliary circuit is applicable to alternating current circuit and DC circuit simultaneously, need not to be provided with the purpose that special arc-control device can reach arc extinguishing, make the simple in structure of device for switching itself, the ampacity of device for switching can not be subjected to the restriction of arc-control device, has reduced manufacturing cost when improving performance yet;
Secondly, adopted three end controlable electric currents of a band control end in the auxiliary circuit, this controlable electric current links to each other at first end of control end and auxilliary contact, and controlable electric current is realized conducting and ended under the effect of control end; When auxilliary contact is closed earlier, control end promptly receive triggering signal and and then this controlable electric current of conducting, the conducting of controlable electric current makes the operating current that directly is added in the main contact two ends flow through from controlable electric current, destroyed the arc condition that rises of main contact, electric arc in the time of can effectively eliminating the main contact closure, and when main contact disconnects earlier, because auxilliary contact is still closed, controlable electric current keeps conducting, still destroy the arc condition that rises of main contact, can eliminate the electric arc of main contact when disconnecting equally, and, the controlable electric current freedom is just conducting when assisting contact closure, has guaranteed the reliability of circuit working;
In addition, in the utility model, because a wherein end of auxilliary contact is to link to each other with the control end of controlable electric current, the two ends of auxilliary contact directly do not add work voltage, eliminate effectively that main contact is being opened a sluice gate and the prerequisite of arcing phenomenon when closing a floodgate under, when auxilliary contact closure or disconnection, should can not produce the arcing phenomenon by auxilliary contact yet, therefore, can guarantee the useful life of main contact and auxilliary contact simultaneously, improve properties of product, and, crowbar circuit of the present utility model is simple in structure, easy to install, extinguishing arc is effective, helps generally promoting making.
Description of drawings
Fig. 1 is one of schematic block circuit diagram of the present utility model;
Fig. 2 is two of a schematic block circuit diagram of the present utility model;
Fig. 3 is the circuit structure diagram of the utility model embodiment one;
Fig. 4 is the circuit structure diagram of the utility model embodiment two;
Fig. 5 is the circuit structure diagram of the utility model embodiment three;
Fig. 6 is the circuit structure diagram of the utility model embodiment four;
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in Figure 1 and Figure 2, be schematic block circuit diagram of the present utility model, this switch arc suppression circuit for switch devices is applicable to DC circuit and alternating current circuit simultaneously, include the device for switching main contact K1 that is serially connected in the operating circuit, this main contact K1 has the first electrode tip P1 and the second electrode tip P2, also be parallel with an auxiliary circuit B between the first electrode tip P1 of main contact K1 and the second electrode tip P2, referring to Fig. 1, this auxiliary circuit B includes
One auxilliary contact K2, this auxilliary contact and main contact have the linked switch of logic control relation successively;
One current-limiting resistance R1; And
One first order controlable electric current A1;
Wherein, first order controlable electric current A1 is for including the first voltage end t11, three terminal circuits of the second voltage end t12 and control end ctr1, the first electrode tip P1 of the first voltage end t11 and main contact K1 links to each other, the second voltage end t12 of first order controlable electric current A1 and the second electrode tip P2 of main contact K1 link to each other, the first end a of the control end ctr1 of first order controlable electric current A1 and auxilliary contact K2 links to each other, the second end b that should assist contact K2 links to each other through the first voltage end t11 of current-limiting resistance R1 and first order controlable electric current A1, and, the first voltage end t11 of first order controlable electric current A1, satisfy following logical relation between the second voltage end t12 and the trigger end ctr1:
When the first voltage end t11 adds forward voltage with respect to the second voltage end t12, and control end ctr1 is when receiving triggering signal simultaneously, first order controlable electric current A1 conducting;
When the first voltage end t11 adds negative voltage with respect to the second voltage end t12, and control end ctr1 is when receiving triggering signal simultaneously, also conducting of first order controlable electric current A1;
Between the first voltage end t11 and the second voltage end t12, add forward or negative voltage, and during control end ctr1 Triggerless, first order controlable electric current A1 ends.
For guaranteeing to eliminate effectively the electric arc of main contact, the linked switch that main contact and auxilliary contact are formed also must satisfy following control logic relation:
(I) making process:
The auxilliary contact of auxiliary circuit is closed earlier, and controlable electric current obtains faint trigger current signal once the current-limiting resistance restriction, this controlable electric current conducting simultaneously at control end;
Then, behind time of delay Δ t, main contact is closed again, and wherein, Δ t is greater than the switching arc arcing time of selected main contact;
(II) separating brake process:
Main contact disconnects earlier, and at this moment, auxilliary contact is still closed, and controlable electric current continues to keep conducting;
Then, behind time of delay Δ t, the auxilliary contact of order disconnects, the control end Triggerless of controlable electric current, and this controlable electric current ends; Wherein, Δ t is greater than the switching arc arcing time of selected main contact.
When the operating circuit of device for switching is the high voltage heavy current, in order to prevent that big electric current from burning out the components and parts in the controlable electric current, can be on the first order controlable electric current A1 basis of the first order a plurality of secondary controlable electric current A2 in parallel again, referring to Fig. 2, wherein, secondary controlable electric current A2 has the first voltage end t21 equally, the second voltage end t22 and control end ctr2, and has identical logical relation between three ends of secondary controlable electric current A2 with first order controlable electric current A1, the physical circuit syndeton of secondary controlable electric current A2 can be identical with first order controlable electric current A1, also can be different; The first voltage end t21 of secondary controlable electric current A2, the second voltage end t22 are connected respectively on the first voltage end t11, the second voltage end t12 of first order controlable electric current A1 accordingly, and the control end ctr1 of the control end ctr2 of secondary controlable electric current A2 and the first controlable electric current A1 meets the first end a that is connected auxilliary contact K2 for one point union altogether.Here, three end controlable electric currents can select to satisfy the existing components and parts of above-mentioned logical relation, as bidirectional triode thyristor, one-way SCR or triode, also can be the functional circuits that makes up according to above-mentioned logical relation.
Embodiment one, as shown in Figure 3:
This crowbar circuit specifically includes main contact K1, auxilliary contact K2, current-limiting resistance R1 and bidirectional triode thyristor BCR, wherein, main contact K1 has the first electrode tip P1 and the second electrode tip P2, the first electrode tip P1 of the anode of bidirectional triode thyristor BCR and main contact K1 links to each other, the second electrode tip P2 of the negative electrode of bidirectional triode thyristor BCR and main contact K1 links to each other, the first end a of the control end of bidirectional triode thyristor BCR and auxilliary contact K2 links to each other, and the second end b of auxilliary contact K2 links to each other through the first electrode tip P1 of current-limiting resistance R1 and main contact K1.
Operation principle:
Making process: auxilliary contact K2 is closed earlier, at this moment, the control end of bidirectional triode thyristor BCR obtains the low current signal after current-limiting resistance R1 current limliting, bidirectional triode thyristor BCR conducting, voltage between the first electrode tip P1 and the second electrode tip P2 is approximately zero (tube voltage drop of ignoring bidirectional triode thyristor BCR), the operating current that is added in main contact K1 two ends flows through through bidirectional triode thyristor BCR, destroy the arcing condition of main contact K1, through behind the Δ t (Δ t is the arcing time of main contact K1), main contact K1 does not have the arc closure.
The separating brake process: main contact K1 disconnects earlier, at this moment, auxilliary contact K2 is still closed, bidirectional triode thyristor BCR keeps conducting state, the operating current that is added in main contact K1 two ends still flows through through bidirectional triode thyristor BCR, and main contact K1 does not have arc and disconnects, through behind the Δ t (Δ t is the arcing time of main contact K1), auxilliary contact K2 disconnects, and bidirectional triode thyristor BCR ends.
Because the control end of bidirectional triode thyristor BCR is after receiving triggering signal, be to add forward voltage or reverse voltage between silicon controlled anode and the negative electrode no matter, can guarantee conducting, therefore, can be applicable to simultaneously in DC circuit or the alternating current circuit by present embodiment.
Embodiment two, as shown in Figure 4:
The difference of present embodiment and embodiment one is bidirectional triode thyristor BCR is replaced to two the first unidirectional controllable silicon S CR1 that are arranged in parallel and the second unidirectional controllable silicon S CR2, wherein, the first electrode tip P1 of the anode of the first unidirectional controllable silicon S CR1 and main contact K1 links to each other, the second electrode tip P2 of the negative electrode of the first unidirectional controllable silicon S CR1 and main contact K1 links to each other, and the first end a of the control end of the first unidirectional controllable silicon S CR1 and auxilliary contact K2 links to each other; The second electrode tip P2 of the anode of the second unidirectional controllable silicon S CR2 and main contact K1 links to each other, and the first electrode tip P1 of the negative electrode of the second unidirectional controllable silicon S CR2 and main contact K1 links to each other, and the first end a of the control end of the second unidirectional controllable silicon S CR2 and auxilliary contact K2 links to each other.
The circuit working principle of present embodiment and embodiment's one is basic identical, only is that the controlled function with a bidirectional triode thyristor realizes by the one-way SCR of two parallel connections, does not do at this and gives unnecessary details.
Embodiment three, as shown in Figure 5:
This crowbar circuit includes main contact K1, auxilliary contact K2, current-limiting resistance R1, capacitor C, time delay resistance R2, NPN type triode BG, the first voltage-stabiliser tube D1 and the second voltage-stabiliser tube D2, wherein, main contact K1 has the first electrode tip P1 and the second electrode tip P2, the first end a of the base stage one road of triode BG and auxilliary contact K2 links to each other, another road links to each other with the negative electrode of the first voltage-stabiliser tube D1, the second electrode tip P2 of the emitter of triode BG and main contact K1 links to each other, the end of the collector electrode one road of triode BG and time delay resistance R2 links to each other, the other end of this time delay resistance R2 links to each other with the first electrode tip P1 of main contact K1 after capacitor C, the negative electrode of another road of the collector electrode of triode BG and the second voltage-stabiliser tube D2 links to each other, and the anode of the anode of the first voltage-stabiliser tube D1 and the second voltage-stabiliser tube D2 connects the back altogether and links to each other with the second electrode tip P2 of main contact K1.
Operation principle:
Making process: when the first electrode tip P1 adds forward voltage with respect to the second electrode tip P2, auxilliary contact K2 is closed earlier, the operating current that is added in the first electrode tip P1 and second extreme P2 is after current-limiting resistance R1 and auxilliary contact K2 current limliting and through the voltage stabilizing of the first voltage-stabiliser tube D1, NPN type triode BG conducting (if positive-negative-positive triode, then triode ends), at this moment, one end of capacitor C is by time delay resistance R2 and triode BG discharge, and this capacitor C is charged simultaneously with the other end that the first electrode tip P1 links to each other; Through behind the Δ t (Δ t is the arcing time of main contact K1), main contact K1 closure in this process, owing to the charging effect of capacitor C, has been destroyed the arcing condition of main contact K1, so main contacts K1 is closed under approximate no arc or low arcuation attitude.
When the first electrode tip P1 adds reverse voltage with respect to the second electrode tip P2, auxilliary contact K2 is closed earlier, NPN type triode BG enters reverse blocking state (if the then conducting of positive-negative-positive triode), and at this moment, operating current charges to capacitor C by the second voltage-stabiliser tube D2 and time delay resistance R2; Through behind the Δ t (Δ t is the arcing time of main contact K1), main contact K1 closure in this process, owing to the charging effect of capacitor C, has been destroyed the arcing condition of main contact K1, so main contact K1 is closed under approximate no arc or low arcuation attitude.
Separating brake process: when the first electrode tip P1 adds forward voltage with respect to the second electrode tip P2, main contact K1 disconnects earlier, this moment, auxilliary contact K2 still was in closure state, under the state of NPN type triode BG conducting, because the charging effect of capacitor C, destroy the arcing condition of main contact K1, so main contact K1 disconnects under approximate no arc or low arcuation attitude; Through behind the Δ t (Δ t is the arcing time of main contact K1), auxilliary contact K2 disconnects under approximate no arcuation attitude, and capacitor C stops to discharge and recharge simultaneously;
When the first electrode tip P1 adds reverse voltage with respect to the second electrode tip P2, main contact K1 disconnects earlier, auxilliary contact K2 still is in closure state, because this moment, NPN type triode BG was a cut-off state, operating current still charges to capacitor C by the second voltage-stabiliser tube D2 and time delay resistance R2, because the charging effect of capacitor C, the arcing condition of destruction main contact K1 is so main contact K1 disconnects under approximate no arc or low arcuation attitude; Through behind the Δ t (Δ t is the arcing time of main contact K1), auxilliary contact K2 disconnects under approximate no arcuation attitude equally.
Embodiment four, as shown in Figure 6:
Present embodiment is the improvement to embodiment one, present embodiment includes the first bidirectional triode thyristor BCR1 and two controllable silicons of the second bidirectional triode thyristor BCR2, wherein, the anode of the anode of the second bidirectional triode thyristor BCR2 and the first bidirectional triode thyristor BCR1 connects altogether and links to each other with the first electrode tip P1, the negative electrode of the negative electrode of the second bidirectional triode thyristor BCR2 and the first bidirectional triode thyristor BCR1 connects altogether and links to each other with the second electrode tip P2, and the control end of the control end of the second bidirectional triode thyristor BCR2 and the first bidirectional triode thyristor BCR1 is connected to the first end a that assists contact K2 after connecing altogether.
This circuit is applicable in the operating circuit of big voltage heavy current, for reaching the purpose of rapid arc extinction, by two-stage or more than the two-stage bidirectional triode thyristor in parallel realize eliminating the electric arc of main contact, to reach extinguishing arc effect preferably.
Claims (5)
1, a kind of switch arc suppression circuit for switch devices, include the device for switching main contact (K1) that can be serially connected in direct current or the alternating current circuit, this main contact (K1) has first electrode tip (P1) and second electrode tip (P2), also be parallel with an auxiliary circuit (B) between first electrode tip (P1) of described main contact (K1) and second electrode tip (P2), it is characterized in that: described auxiliary circuit (B) includes
One auxilliary contact (K2), this auxilliary contact and described main contact are to have the linked switch of logic control relation successively;
One current-limiting resistance (R1); And
One or three end controlable electric currents (A1) include first voltage end (t11), second voltage end (t12) and control end (ctr1);
Wherein, first voltage end (t11) of described controlable electric current links to each other with first electrode tip (P1) of described main contact (K1), second voltage end (t12) of described controlable electric current links to each other with second electrode tip (P2) of described main contact (K1), first end (a) of control end of described controlable electric current (ctr1) and described auxilliary contact (K2) links to each other, second end (b) that should assist contact (K2) links to each other through first voltage end (t11) of described current-limiting resistance (R1) and described controlable electric current, and, first voltage end (t11) of described controlable electric current, have following logical relation between second voltage end (t12) and the control end (ctr1):
When described first voltage end (t11) adds forward voltage with respect to second voltage end (t12), and described control end (ctr1) is when receiving triggering signal simultaneously, described controlable electric current conducting;
When described first voltage end (t11) adds negative voltage with respect to second voltage end (t12), and described control end (ctr1) is when receiving triggering signal simultaneously, described controlable electric current conducting;
Between described first voltage end (t11) and second voltage end (t12), add forward or negative voltage, and during described control end (ctr1) Triggerless, described controlable electric current ends.
2, switch arc suppression circuit for switch devices according to claim 1, it is characterized in that: described auxiliary circuit (B) includes at least two described three end controlable electric currents, wherein, first voltage end of each described controlable electric current links to each other with second electrode tip with first electrode tip of described main contact respectively with second voltage end, and first end that the control end of each described controlable electric current connects altogether to one point union and described auxilliary contact links to each other.
3, switch arc suppression circuit for switch devices according to claim 1, it is characterized in that: described controlable electric current is a two-way controllable silicon (BCR), first electrode tip (P1) of anode of this bidirectional triode thyristor (BCR) and described main contact (K1) links to each other, the negative electrode of this bidirectional triode thyristor (BCR) links to each other with second electrode tip (P2) of described master (BCR) contact, and first end (a) of control end of this bidirectional triode thyristor (BCR) and described auxilliary contact (K2) links to each other.
4, switch arc suppression circuit for switch devices according to claim 1, it is characterized in that: described controlable electric current includes first one-way SCR (SCR1) and second one-way SCR (SCR2), wherein, first electrode tip (P1) of the anode of described first one-way SCR (SCR1) and described main contact (K1) links to each other, second electrode tip (P2) of the negative electrode of this first one-way SCR (SCR1) and described main contact (K1) links to each other, and first end (a) of the control end of this first one-way SCR (SCR1) and described auxilliary contact (K2) links to each other; Second electrode tip (P2) of the anode of described second one-way SCR (SCR2) and described main contact (K1) links to each other, first electrode tip (P1) of the negative electrode of this second one-way SCR (SCR2) and described main contact (K1) links to each other, and first end (a) of the control end of this second one-way SCR (SCR2) and described auxilliary contact (K2) links to each other.
5, switch arc suppression circuit for switch devices according to claim 1, it is characterized in that: described controlable electric current includes electric capacity (C), time delay resistance (R2), NPN type triode (BG), first voltage-stabiliser tube (D1) and second voltage-stabiliser tube (D2), wherein, first end (a) of the base stage one tunnel of described triode (BG) and described auxilliary contact (K2) links to each other, another road links to each other with the negative electrode of described first voltage-stabiliser tube (D1), second electrode tip (P2) of the emitter of described triode (BG) and described main contact (K1) links to each other, the collector electrode one tunnel of this triode (BG) links to each other with described first electrode tip (P1) behind time delay resistance (R2) and the electric capacity (C) of serial connection successively, another road of collector electrode of this triode (BG) links to each other with the negative electrode of described second voltage-stabiliser tube (D2), and the anode of the anode of described first voltage-stabiliser tube (D1) and second voltage-stabiliser tube (D2) connects the back altogether and links to each other with second electrode tip (P2) of described main contact (K1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920118729U CN201383445Y (en) | 2009-04-24 | 2009-04-24 | Switch extinguishing arc circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920118729U CN201383445Y (en) | 2009-04-24 | 2009-04-24 | Switch extinguishing arc circuit |
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| CN201383445Y true CN201383445Y (en) | 2010-01-13 |
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| CN101872690A (en) * | 2010-06-02 | 2010-10-27 | 顾刚 | Arcless switching circuit and control method as well as power expansion method thereof |
| CN101888045A (en) * | 2010-06-02 | 2010-11-17 | 江苏艾索新能源股份有限公司 | Circuit and method for preventing direct current arc discharge |
| CN104637753A (en) * | 2015-02-06 | 2015-05-20 | 孙毅彪 | Arc-free matrix intelligent bridge strong control type high-voltage circuit breaker |
| CN104637754A (en) * | 2015-02-06 | 2015-05-20 | 孙毅彪 | Arc-free matrix intelligent bridge type high-voltage circuit breaker |
| WO2016091178A1 (en) * | 2014-12-11 | 2016-06-16 | 广州市金矢电子有限公司 | Arc extinguishing device |
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2009
- 2009-04-24 CN CN200920118729U patent/CN201383445Y/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872690A (en) * | 2010-06-02 | 2010-10-27 | 顾刚 | Arcless switching circuit and control method as well as power expansion method thereof |
| CN101888045A (en) * | 2010-06-02 | 2010-11-17 | 江苏艾索新能源股份有限公司 | Circuit and method for preventing direct current arc discharge |
| WO2011150684A1 (en) * | 2010-06-02 | 2011-12-08 | 江苏艾索新能源股份有限公司 | Direct current arc proof circuit and method thereof |
| CN101872690B (en) * | 2010-06-02 | 2012-10-10 | 顾刚 | Arcless switching circuit and control method as well as power expansion method thereof |
| WO2016091178A1 (en) * | 2014-12-11 | 2016-06-16 | 广州市金矢电子有限公司 | Arc extinguishing device |
| CN104637753A (en) * | 2015-02-06 | 2015-05-20 | 孙毅彪 | Arc-free matrix intelligent bridge strong control type high-voltage circuit breaker |
| CN104637754A (en) * | 2015-02-06 | 2015-05-20 | 孙毅彪 | Arc-free matrix intelligent bridge type high-voltage circuit breaker |
| CN104637753B (en) * | 2015-02-06 | 2018-04-20 | 孙毅彪 | No electric arc type matrix learning bridge controls by force formula high-voltage circuitbreaker |
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Granted publication date: 20100113 Effective date of abandoning: 20090424 |