A kind of circuit of gas-discharge tube ageing device
Technical field
The utility model relates to the gas-discharge tube ageing device that gas-discharge tube is carried out the ageing processing.Especially a kind of circuit of gas-discharge tube ageing device.
Background technology
Having a wide range of applications in the infringement that superpotential that gas-discharge tube prevents to be struck by lightning in electronic equipment, signal system and power-supply system, electromagnetic pulse is brought and switching overvoltage cause them, is a kind of switching devices commonly used such as lightning-protection system.
The ageing of gas-discharge tube is a very important link during gas-discharge tube is produced, and it is directly determining electric parameter stable of gas-discharge tube.The main effect of gas-discharge tube ageing is the foreign gas of removing gas-discharge tube inside, attached to the oxide of electrode surface and the impurity of removing other, simultaneously with the characteristic activation of electronics powder, to reach the electric property of stable-gas discharging pipe.
The gas-discharge tube ageing method mainly by realizing by electric current, claims the ageing electric current in gas-discharge tube.Ageing electric current during the gas-discharge tube ageing, time are two important parameters in the gas-discharge tube ageing, while gas-discharge tube fully ageing has certain requirement to the voltage of ageing again, if brownout can cause ageing insufficient, the properties of product instability.
The Current Regulation of ageing device before this mainly relies on voltage-regulation or big resistance potentiometer to regulate.When adopting the voltage-regulation method to regulate electric current, the scope of adjustable electric current is not wide, is difficult to satisfy the needs of different product.Adopt big resistance potentiometer to regulate method, the minute adjustment that can not accomplish resistance, thereby the precision of Current Regulation is restricted, unfavorable to improving the ageing accuracy.
Summary of the invention
The utility model is intended to overcome the above-mentioned deficiency of the gas-discharge tube ageing device of prior art, and a kind of circuit of gas-discharge tube ageing device is provided.Its ageing voltage can be adjusted as required according to the voltage of gas with various discharge tube, and ageing Current Regulation wide ranges can realize electric current from the linear regulation between 0.1A-10A, and carries the high voltage aging circuit, can carry out the ageing of ten thousand volts high-pressure discharge pipe.
To achieve these goals, finish above-mentioned task, the circuit of a kind of gas-discharge tube ageing device of the utility model adopts following technical scheme:
The circuit of a kind of gas-discharge tube ageing device of the utility model comprises voltage regulator circuit, current regulating circuit and control circuit; Also comprise high-pressure generating circuit, the input end of voltage regulator circuit connects AC power, the output terminal of voltage regulator circuit is connected with the input end of current regulating circuit, high-pressure generating circuit is connected with current regulating circuit, control circuit is connected with voltage regulator circuit, current regulating circuit, high-pressure generating circuit respectively, respectively the operation of voltage regulator circuit, current regulating circuit, high-pressure generating circuit is controlled in real time;
Described current regulating circuit comprises:
Form m bar branch by reometer PA, resistance R 1 ~ Rn and switch S 1 ~ S n, wherein n and m are the positive integer greater than 1, R1 among resistance R 1 ~ Rn and the switch S 1 ~ Sn and S1 ... connect again after Rn and the corresponding one by one parallel connection of Sn, switch S1 ~ Sn is carried out selectivity be switched on or switched off, can be to the all-in resistance real-time regulated of described branch; Reometer PA is serially connected with the branch that comprises resistance R 1 ~ Rn and the switch S 1 ~ Sn accordingly size of current with real-time measurement respective branch;
The input end of described m bar branch is connected with the normally opened contact of the contactor KM2 of control circuit respectively, with a end of the secondary coil of the transformer T2 that connects described voltage regulator circuit, the output terminal of described m bar branch is connected to the corresponding gas-discharge tube for the treatment of ageing separately.
Technique scheme is further set forth:
The gas-discharge tube for the treatment of ageing also is connected with the common port c of circuit.
Described voltage regulator circuit comprises contactor KM1 normally opened contact, pressure regulator T1, transformer T2 and the voltage table PV1 of circuit breaker Q S1, control circuit, be connected (as the 220v AC power) again with AC power after the primary coil series connection of circuit breaker Q S1, contactor KM1 normally opened contact and pressure regulator T1, the secondary coil of pressure regulator T1 is connected with the primary coil of transformer T2, the secondary coil of voltage table PV1 and transformer T2 also connects output voltage with real-time measuring transformer T2, and the two ends of the secondary coil of transformer T2 are respectively a end and b end.
Described high-pressure generating circuit comprises high-tension transformer T3, switching discharge tube GDT1, resistance R 14 and capacitor C 1, resistance R 14 and capacitor C 1 back in parallel one end are connected with an end of the primary coil of high-tension transformer T3 by switching discharge tube GDT1, the other end of the primary coil of high-tension transformer T3 is connected to zero line N, the other end after resistance R 14 and capacitor C 1 parallel connection is a d end, and the two ends of the secondary coil of high-tension transformer T3 connect the b end of secondary coil of transformer T2 of voltage regulator circuit and the common port c of circuit respectively.Produce pulse current by the primary coil that constantly discharges and recharges at high-tension transformer T3 to electric capacity, the secondary coil of high-tension transformer T3 produces high pressure.
Described control circuit comprises relay K 1, relay K 2, relay K 3, time relay KT1, time relay KT2, contactor KM1, contactor KM2, starting switch SB1, shutdown switch SB2 and high voltage startup switch S 14; Relay K 1, relay K 2, relay K 3, time relay KT1, time relay KT2, contactor KM1 and contactor KM2 all join with zero line N; The normally opened contact K1-1 of relay K 1 and starting switch SB1 and shutdown switch SB2 combination are equipped, and the normally opened contact K1-1 of starting switch SB1 and relay K 1 connects live wire L respectively; The normally opened contact K1-2 of relay K 1, time relay KT1, time relay KT2, high voltage startup switch S 14 and relay K 3 combinations are equipped, the normally opened contact K1-2 of relay K 1 is connected with time relay KT1 and high voltage startup switch S 14 respectively, high voltage startup switch S 14 other ends are connected with time relay KT2, the normally closed contact KT2-1 of time relay KT2 is connected with high voltage startup switch S 14 other ends and relay K 3 respectively, and the normally opened contact K1-2 of relay K 1 connects live wire; The normally opened contact K1-3/4 of relay K 1 and contactor KM1 combination are equipped, and the normally opened contact K1-3/4 of relay K 1 connects live wire; The normally opened contact KT1-1 of time relay KT1 and relay K 2 combinations are equipped, and the normally opened contact KT1-1 of time relay KT1 connects live wire; The normally opened contact K2-1 of relay K 2 and contactor KM2 combination are equipped, and the normally opened contact K2-1 of relay K 2 connects live wire; The normally opened contact K3-1 of relay K 3 is connected to the d end of high-pressure generating circuit, and the normally opened contact K3-1 of relay K 3 connects live wire.
Principle of work to the circuit of a kind of gas-discharge tube ageing device of the utility model is described as follows.
According to the voltage of gas-discharge tube, regulate the voltage of pressure regulator T1 to the need of institute, the electric current toggle switch S1 ~ S13 break-make required according to ageing regulated resistance to reach required electric current, the time of the adjusting time relay.Press starting switch SB1, relay K 1 gets electric, by the closed self-locking guard relay of K1-1 K1 "on" position, the K1-2 closure, time relay KT1 gets electric, the normally opened contact KT1-1 adhesive of time relay KT1, and relay K 2 gets electric adhesive, contactor KM2 gets electric adhesive, the KM2 adhesive, gas-discharge tube must be established the beginning ageing by cable, burning-in period to after stop automatically, etc. pending next set product ageing, press the SB2 discharge tube and stop ageing.If need carry out high voltage aging, open dual pressure control switch S14, KT2 and K3 control high-pressure generating circuit work in the control circuit, after K3 gets electric adhesive, high-pressure generating circuit produces pulse current by the fulgurite that charges and discharge of capacitor C 1 on the primary coil of high-tension transformer T3, pulsating volage ten thousand volts of out secondary generations, the pulsation high pressure that secondary coil produces will treat that at first the gas-discharge tube igniting of ageing punctures, gas-discharge tube carries out glow discharge, after gas-discharge tube enters glow discharge, the electric current of transformer T2 flows into and makes gas-discharge tube enter the arc discharge state immediately, and after the time relay KT1 time arrived, one time ageing was finished.
For the beneficial effects of the utility model are: its ageing voltage can be adjusted as required according to the voltage of gas with various discharge tube, ageing Current Regulation wide ranges, can realize that electric current is from the linear regulation between 0.1A-10A, and carry the high voltage aging circuit, can carry out the ageing of ten thousand volts high-pressure discharge pipe.
Description of drawings
Fig. 1 is the utility model principle block diagram;
Fig. 2 is the voltage regulator circuit synoptic diagram;
Fig. 3 is the current regulating circuit synoptic diagram;
Fig. 4 is the high-pressure generating circuit synoptic diagram;
Fig. 5 is the control circuit synoptic diagram.
Embodiment
Below, introduce embodiment of the present utility model in conjunction with the accompanying drawings.
As shown in Figure 1, the circuit of a kind of gas-discharge tube ageing device of the utility model comprises voltage regulator circuit, current regulating circuit and control circuit; Also comprise high-pressure generating circuit, the input end of voltage regulator circuit connects AC power, the output terminal of voltage regulator circuit is connected with the input end of current regulating circuit, high-pressure generating circuit is connected with current regulating circuit, control circuit is connected with voltage regulator circuit, current regulating circuit, high-pressure generating circuit respectively, respectively the operation of voltage regulator circuit, current regulating circuit, high-pressure generating circuit is controlled in real time.
As shown in Figure 3, described current regulating circuit comprises:
Form m bar branch by reometer PA, resistance R 1 ~ Rn and switch S 1 ~ S n, wherein n and m are the positive integer greater than 1, R1 among resistance R 1 ~ Rn and the switch S 1 ~ Sn and S1 ... connect again after Rn and the corresponding one by one parallel connection of Sn, switch S1 ~ Sn is carried out selectivity be switched on or switched off, can be to the all-in resistance real-time regulated of described branch; Reometer PA is serially connected with the branch that comprises resistance R 1 ~ Rn and the switch S 1 ~ Sn accordingly size of current with real-time measurement respective branch;
The input end of described m bar branch is connected with the normally opened contact of the contactor KM2 of control circuit respectively, with a end of the secondary coil of the transformer T2 that connects described voltage regulator circuit, the output terminal of described m bar branch is connected to the corresponding gas-discharge tube for the treatment of ageing separately.
As a preferred example, resistance R 1 ~ Rn is resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13, switch S 1 ~ S n is switch S 1, S2, S 3, S 4, S 5, S6, S 7, S8, S 9, S 10, S 11, S12 and S13, and the 13 pairs of resistance R and the switch S parallel connection branch of formation of connecting again; M is 20, i.e. 20 branches, gas-discharge tube of ageing of a branch, 20 branches can be once 20 gas-discharge tubes of ageing simultaneously, the efficient height.Wherein, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13 are respectively 1 Europe, 2 Europe, 2 Europe, 5 Europe, 10 Europe, 20 Europe, 20 Europe, 50 Europe, 100 Europe, 200 Europe, 200 Europe, 500 Europe, 3000 Europe.Switch S1 ~ S13 is carried out selectivity be switched on or switched off, can be to the all-in resistance real-time regulated of described branch, maximum can be adjusted to 4110 Europe, and minimum can be adjusted to 1 Europe.
Described voltage regulator circuit comprises contactor KM1 normally opened contact, pressure regulator T1, transformer T2 and the voltage table PV1 of circuit breaker Q S1, control circuit, be connected (as the 220v AC power) again with AC power after the primary coil series connection of circuit breaker Q S1, contactor KM1 normally opened contact and pressure regulator T1, the secondary coil of pressure regulator T1 is connected with the primary coil of transformer T2, the secondary coil of voltage table PV1 and transformer T2 also connects output voltage with real-time measuring transformer T2, and the two ends of the secondary coil of transformer T2 are respectively a end and b end.
Described high-pressure generating circuit comprises high-tension transformer T3, switching discharge tube GDT1, resistance R 14 and capacitor C 1, resistance R 14 and capacitor C 1 back in parallel one end are connected with an end of the primary coil of high-tension transformer T3 by switching discharge tube GDT1, the other end of the primary coil of high-tension transformer T3 is connected to zero line N, the other end after resistance R 14 and capacitor C 1 parallel connection is a d end, and the two ends of the secondary coil of high-tension transformer T3 connect the b end of secondary coil of transformer T2 of voltage regulator circuit and the common port c of circuit respectively.Produce pulse current by the primary coil that constantly discharges and recharges at high-tension transformer T3 to electric capacity, the secondary coil of high-tension transformer T3 produces high pressure.
Described control circuit comprises relay K 1, relay K 2, relay K 3, time relay KT1, time relay KT2, contactor KM1, contactor KM2, starting switch SB1, shutdown switch SB2 and high voltage startup switch S 14; Relay K 1, relay K 2, relay K 3, time relay KT1, time relay KT2, contactor KM1 and contactor KM2 all join with zero line N; The normally opened contact K1-1 of relay K 1 and starting switch SB1 and shutdown switch SB2 combination are equipped, and the normally opened contact K1-1 of starting switch SB1 and relay K 1 connects live wire L respectively; The normally opened contact K1-2 of relay K 1, time relay KT1, time relay KT2, high voltage startup switch S 14 and relay K 3 combinations are equipped, the normally opened contact K1-2 of relay K 1 is connected with time relay KT1 and high voltage startup switch S 14 respectively, high voltage startup switch S 14 other ends are connected with time relay KT2, the normally closed contact KT2-1 of time relay KT2 is connected with high voltage startup switch S 14 other ends and relay K 3 respectively, and the normally opened contact K1-2 of relay K 1 connects live wire; The normally opened contact K1-3/4 of relay K 1 and contactor KM1 combination are equipped, and the normally opened contact K1-3/4 of relay K 1 connects live wire; The normally opened contact KT1-1 of time relay KT1 and relay K 2 combinations are equipped, and the normally opened contact KT1-1 of time relay KT1 connects live wire; The normally opened contact K2-1 of relay K 2 and contactor KM2 combination are equipped, and the normally opened contact K2-1 of relay K 2 connects live wire; The normally opened contact K3-1 of relay K 3 is connected to the d end of high-pressure generating circuit, and the normally opened contact K3-1 of relay K 3 connects live wire.
The above only is preferred embodiment of the present utility model, is not that technical scope of the present utility model is imposed any restrictions.The technician of the industry, under the inspiration of the technical program, can make some distortion and revise, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model above any modification, equivalent variations and modification that embodiment did.